linux-2.6-microblaze.git
23 months agoMerge tag 'printk-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 24 Jun 2022 17:54:07 +0000 (10:54 -0700)]
Merge tag 'printk-for-5.19-rc4' of git://git./linux/kernel/git/printk/linux

Pull printk kernel thread revert from Petr Mladek:
 "Revert printk console kthreads.

  The testing of 5.19 release candidates revealed issues that did not
  happen when all consoles were serialized using the console semaphore.

  More time is needed to check expectations of the existing console
  drivers and be confident that they can be safely used in parallel"

* tag 'printk-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  Revert "printk: add functions to prefer direct printing"
  Revert "printk: add kthread console printers"
  Revert "printk: extend console_lock for per-console locking"
  Revert "printk: remove @console_locked"
  Revert "printk: Block console kthreads when direct printing will be required"
  Revert "printk: Wait for the global console lock when the system is going down"

23 months agoMerge tag 'pm-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Thu, 23 Jun 2022 19:17:15 +0000 (14:17 -0500)]
Merge tag 'pm-5.19-rc4' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a recent regression preventing some systems from powering off
  after saving a hibernation image (Dmitry Osipenko)"

* tag 'pm-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: hibernate: Use kernel_can_power_off()

23 months agoMerge tag 'random-5.19-rc4-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 23 Jun 2022 19:00:49 +0000 (14:00 -0500)]
Merge tag 'random-5.19-rc4-for-linus' of git://git./linux/kernel/git/crng/random

Pull random number generator fixes from Jason Donenfeld:

 - A change to schedule the interrupt randomness mixing less often, yet
   credit a little more each time, to reduce overhead during interrupt
   storms.

 - Squelch an undesired pr_warn() from __ratelimit(), which was causing
   problems in the reporters' CI.

 - A trivial comment fix.

* tag 'random-5.19-rc4-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
  random: update comment from copy_to_user() -> copy_to_iter()
  random: quiet urandom warning ratelimit suppression message
  random: schedule mix_interrupt_randomness() less often

23 months agoMerge tag 'trace-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Thu, 23 Jun 2022 17:24:49 +0000 (12:24 -0500)]
Merge tag 'trace-v5.19-rc1' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Check for NULL in kretprobe_dispatcher()

   NULL can now be passed in, make sure it can handle it

 - Clean up unneeded #endif #ifdef of the same preprocessor
   check in the middle of the block.

 - Comment clean up

 - Remove unneeded initialization of the "ret" variable in
   __trace_uprobe_create()

* tag 'trace-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing/uprobes: Remove unwanted initialization in __trace_uprobe_create()
  tracefs: Fix syntax errors in comments
  tracing: Simplify conditional compilation code in tracing_set_tracer()
  tracing/kprobes: Check whether get_kretprobe() returns NULL in kretprobe_dispatcher()

23 months agoMerge tag 'folio-5.19b' of git://git.infradead.org/users/willy/pagecache
Linus Torvalds [Thu, 23 Jun 2022 17:16:14 +0000 (12:16 -0500)]
Merge tag 'folio-5.19b' of git://git.infradead.org/users/willy/pagecache

Pull pagecache fixes from Matthew Wilcox:
 "Four folio-related fixes for 5.19:

   - Mark a folio accessed at the right time (Yu Kuai)

   - Fix a race for folios being replaced in the middle of a read (Brian
     Foster)

   - Clear folio->private in more places (Xiubo Li)

   - Take the invalidate_lock in page_cache_ra_order() (Alistair Popple)"

* tag 'folio-5.19b' of git://git.infradead.org/users/willy/pagecache:
  filemap: Fix serialization adding transparent huge pages to page cache
  mm: Clear page->private when splitting or migrating a page
  filemap: Handle sibling entries in filemap_get_read_batch()
  filemap: Correct the conditions for marking a folio as accessed

23 months agoMerge branch 'rework/kthreads' into for-linus
Petr Mladek [Thu, 23 Jun 2022 17:11:28 +0000 (19:11 +0200)]
Merge branch 'rework/kthreads' into for-linus

23 months agoMerge tag 'mips-fixes_5.19_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips...
Linus Torvalds [Thu, 23 Jun 2022 17:11:26 +0000 (12:11 -0500)]
Merge tag 'mips-fixes_5.19_2' of git://git./linux/kernel/git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer:

 - several refcount fixes

 - added missing clock for ingenic

 - fix wrong irq_err_count for vr41xx

* tag 'mips-fixes_5.19_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: lantiq: Add missing of_node_put() in irq.c
  mips: dts: ingenic: Add TCU clock to x1000/x1830 tcu device node
  mips/pic32/pic32mzda: Fix refcount leak bugs
  mips: lantiq: xway: Fix refcount leak bug in sysctrl
  mips: lantiq: falcon: Fix refcount leak bug in sysctrl
  mips: ralink: Fix refcount leak in of.c
  mips: mti-malta: Fix refcount leak in malta-time.c
  arch: mips: generic: Add missing of_node_put() in board-ranchu.c
  MIPS: Remove repetitive increase irq_err_count

23 months agoRevert "printk: add functions to prefer direct printing"
Petr Mladek [Thu, 23 Jun 2022 14:51:57 +0000 (16:51 +0200)]
Revert "printk: add functions to prefer direct printing"

This reverts commit 2bb2b7b57f81255c13f4395ea911d6bdc70c9fe2.

The testing of 5.19 release candidates revealed missing synchronization
between early and regular console functionality.

It would be possible to start the console kthreads later as a workaround.
But it is clear that console lock serialized console drivers between
each other. It opens a big area of possible problems that were not
considered by people involved in the development and review.

printk() is crucial for debugging kernel issues and console output is
very important part of it. The number of consoles is huge and a proper
review would take some time. As a result it need to be reverted for 5.19.

Link: https://lore.kernel.org/r/YrBdjVwBOVgLfHyb@alley
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220623145157.21938-7-pmladek@suse.com
23 months agoRevert "printk: add kthread console printers"
Petr Mladek [Thu, 23 Jun 2022 14:51:56 +0000 (16:51 +0200)]
Revert "printk: add kthread console printers"

This reverts commit 09c5ba0aa2fcfdadb17d045c3ee6f86d69270df7.

This reverts commit b87f02307d3cfbda768520f0687c51ca77e14fc3.

The testing of 5.19 release candidates revealed missing synchronization
between early and regular console functionality.

It would be possible to start the console kthreads later as a workaround.
But it is clear that console lock serialized console drivers between
each other. It opens a big area of possible problems that were not
considered by people involved in the development and review.

printk() is crucial for debugging kernel issues and console output is
very important part of it. The number of consoles is huge and a proper
review would take some time. As a result it need to be reverted for 5.19.

Link: https://lore.kernel.org/r/YrBdjVwBOVgLfHyb@alley
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220623145157.21938-6-pmladek@suse.com
23 months agoRevert "printk: extend console_lock for per-console locking"
Petr Mladek [Thu, 23 Jun 2022 14:51:55 +0000 (16:51 +0200)]
Revert "printk: extend console_lock for per-console locking"

This reverts commit 8e274732115f63c1d09136284431b3555bd5cc56.

The testing of 5.19 release candidates revealed missing synchronization
between early and regular console functionality.

It would be possible to start the console kthreads later as a workaround.
But it is clear that console lock serialized console drivers between
each other. It opens a big area of possible problems that were not
considered by people involved in the development and review.

printk() is crucial for debugging kernel issues and console output is
very important part of it. The number of consoles is huge and a proper
review would take some time. As a result it need to be reverted for 5.19.

Link: https://lore.kernel.org/r/YrBdjVwBOVgLfHyb@alley
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220623145157.21938-5-pmladek@suse.com
23 months agoRevert "printk: remove @console_locked"
Petr Mladek [Thu, 23 Jun 2022 14:51:54 +0000 (16:51 +0200)]
Revert "printk: remove @console_locked"

This reverts commit ab406816fca009349b89cbde885daf68a8c77e33.

The testing of 5.19 release candidates revealed missing synchronization
between early and regular console functionality.

It would be possible to start the console kthreads later as a workaround.
But it is clear that console lock serialized console drivers between
each other. It opens a big area of possible problems that were not
considered by people involved in the development and review.

printk() is crucial for debugging kernel issues and console output is
very important part of it. The number of consoles is huge and a proper
review would take some time. As a result it need to be reverted for 5.19.

Link: https://lore.kernel.org/r/YrBdjVwBOVgLfHyb@alley
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220623145157.21938-4-pmladek@suse.com
23 months agoRevert "printk: Block console kthreads when direct printing will be required"
Petr Mladek [Thu, 23 Jun 2022 14:51:53 +0000 (16:51 +0200)]
Revert "printk: Block console kthreads when direct printing will be required"

This reverts commit c3230283e2819a69dad2cf7a63143fde8bab8b5c.

The testing of 5.19 release candidates revealed missing synchronization
between early and regular console functionality.

It would be possible to start the console kthreads later as a workaround.
But it is clear that console lock serialized console drivers between
each other. It opens a big area of possible problems that were not
considered by people involved in the development and review.

printk() is crucial for debugging kernel issues and console output is
very important part of it. The number of consoles is huge and a proper
review would take some time. As a result it need to be reverted for 5.19.

Link: https://lore.kernel.org/r/YrBdjVwBOVgLfHyb@alley
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220623145157.21938-3-pmladek@suse.com
23 months agoRevert "printk: Wait for the global console lock when the system is going down"
Petr Mladek [Thu, 23 Jun 2022 14:51:52 +0000 (16:51 +0200)]
Revert "printk: Wait for the global console lock when the system is going down"

This reverts commit b87f02307d3cfbda768520f0687c51ca77e14fc3.

The testing of 5.19 release candidates revealed missing synchronization
between early and regular console functionality.

It would be possible to start the console kthreads later as a workaround.
But it is clear that console lock serialized console drivers between
each other. It opens a big area of possible problems that were not
considered by people involved in the development and review.

printk() is crucial for debugging kernel issues and console output is
very important part of it. The number of consoles is huge and a proper
review would take some time. As a result it need to be reverted for 5.19.

Link: https://lore.kernel.org/r/YrBdjVwBOVgLfHyb@alley
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220623145157.21938-2-pmladek@suse.com
23 months agofilemap: Fix serialization adding transparent huge pages to page cache
Alistair Popple [Mon, 20 Jun 2022 09:05:36 +0000 (19:05 +1000)]
filemap: Fix serialization adding transparent huge pages to page cache

Commit 793917d997df ("mm/readahead: Add large folio readahead")
introduced support for using large folios for filebacked pages if the
filesystem supports it.

page_cache_ra_order() was introduced to allocate and add these large
folios to the page cache. However adding pages to the page cache should
be serialized against truncation and hole punching by taking
invalidate_lock. Not doing so can lead to data races resulting in stale
data getting added to the page cache and marked up-to-date. See commit
730633f0b7f9 ("mm: Protect operations adding pages to page cache with
invalidate_lock") for more details.

This issue was found by inspection but a testcase revealed it was
possible to observe in practice on XFS. Fix this by taking
invalidate_lock in page_cache_ra_order(), to mirror what is done for the
non-thp case in page_cache_ra_unbounded().

Signed-off-by: Alistair Popple <apopple@nvidia.com>
Fixes: 793917d997df ("mm/readahead: Add large folio readahead")
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
23 months agomm: Clear page->private when splitting or migrating a page
Matthew Wilcox (Oracle) [Sun, 19 Jun 2022 14:37:32 +0000 (10:37 -0400)]
mm: Clear page->private when splitting or migrating a page

In our efforts to remove uses of PG_private, we have found folios with
the private flag clear and folio->private not-NULL.  That is the root
cause behind 642d51fb0775 ("ceph: check folio PG_private bit instead
of folio->private").  It can also affect a few other filesystems that
haven't yet reported a problem.

compaction_alloc() can return a page with uninitialised page->private,
and rather than checking all the callers of migrate_pages(), just zero
page->private after calling get_new_page().  Similarly, the tail pages
from split_huge_page() may also have an uninitialised page->private.

Reported-by: Xiubo Li <xiubli@redhat.com>
Tested-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
23 months agoMerge tag 'net-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 23 Jun 2022 14:01:01 +0000 (09:01 -0500)]
Merge tag 'net-5.19-rc4' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from bpf and netfilter.

  Current release - regressions:

   - netfilter: cttimeout: fix slab-out-of-bounds read in
     cttimeout_net_exit

Current release - new code bugs:

   - bpf: ftrace: keep address offset in ftrace_lookup_symbols

   - bpf: force cookies array to follow symbols sorting

  Previous releases - regressions:

   - ipv4: ping: fix bind address validity check

   - tipc: fix use-after-free read in tipc_named_reinit

   - eth: veth: add updating of trans_start

  Previous releases - always broken:

   - sock: redo the psock vs ULP protection check

   - netfilter: nf_dup_netdev: fix skb_under_panic

   - bpf: fix request_sock leak in sk lookup helpers

   - eth: igb: fix a use-after-free issue in igb_clean_tx_ring

   - eth: ice: prohibit improper channel config for DCB

   - eth: at803x: fix null pointer dereference on AR9331 phy

   - eth: virtio_net: fix xdp_rxq_info bug after suspend/resume

  Misc:

   - eth: hinic: replace memcpy() with direct assignment"

* tag 'net-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
  net: openvswitch: fix parsing of nw_proto for IPv6 fragments
  sock: redo the psock vs ULP protection check
  Revert "net/tls: fix tls_sk_proto_close executed repeatedly"
  virtio_net: fix xdp_rxq_info bug after suspend/resume
  igb: Make DMA faster when CPU is active on the PCIe link
  net: dsa: qca8k: reduce mgmt ethernet timeout
  net: dsa: qca8k: reset cpu port on MTU change
  MAINTAINERS: Add a maintainer for OCP Time Card
  hinic: Replace memcpy() with direct assignment
  Revert "drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c"
  net: phy: smsc: Disable Energy Detect Power-Down in interrupt mode
  ice: ethtool: Prohibit improper channel config for DCB
  ice: ethtool: advertise 1000M speeds properly
  ice: Fix switchdev rules book keeping
  ice: ignore protocol field in GTP offload
  netfilter: nf_dup_netdev: add and use recursion counter
  netfilter: nf_dup_netdev: do not push mac header a second time
  selftests: netfilter: correct PKTGEN_SCRIPT_PATHS in nft_concat_range.sh
  net/tls: fix tls_sk_proto_close executed repeatedly
  erspan: do not assume transport header is always set
  ...

23 months agoMerge tag 'mmc-v5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Thu, 23 Jun 2022 13:55:37 +0000 (08:55 -0500)]
Merge tag 'mmc-v5.19-rc2' of git://git./linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:

 - mtk-sd: Fix dma hang issues

 - sdhci-pci-o2micro: Fix card detect by dealing with debouncing

* tag 'mmc-v5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: mediatek: wait dma stop bit reset to 0
  mmc: sdhci-pci-o2micro: Fix card detect by dealing with debouncing

23 months agoMerge tag 'sound-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Thu, 23 Jun 2022 13:44:00 +0000 (08:44 -0500)]
Merge tag 'sound-5.19-rc4' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "All small changes, mostly device-specific:

   - A regression fix for PCM WC-page allocation on x86

   - A regression fix for i915 audio component binding

   - Fixes for (longstanding) beep handling bug

   - Runtime PM fixes for Intel LPE HDMI audio

   - A couple of pending FireWire fixes

   - Usual HD-audio and USB-audio quirks, new Intel dspconf entries"

* tag 'sound-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek: Add quirk for Clevo NS50PU
  ALSA: hda: Fix discovery of i915 graphics PCI device
  ALSA: hda/via: Fix missing beep setup
  ALSA: hda/conexant: Fix missing beep setup
  ALSA: memalloc: Drop x86-specific hack for WC allocations
  ALSA: hda/realtek: Add quirk for Clevo PD70PNT
  ALSA: x86: intel_hdmi_audio: use pm_runtime_resume_and_get()
  ALSA: x86: intel_hdmi_audio: enable pm_runtime and set autosuspend delay
  ALSA: hda: intel-nhlt: remove use of __func__ in dev_dbg
  ALSA: hda: intel-dspcfg: use SOF for UpExtreme and UpExtreme11 boards
  firewire: convert sysfs sprintf/snprintf family to sysfs_emit
  firewire: cdev: fix potential leak of kernel stack due to uninitialized value
  ALSA: hda/realtek: Apply fixup for Lenovo Yoga Duet 7 properly
  ALSA: hda/realtek - ALC897 headset MIC no sound
  ALSA: usb-audio: US16x08: Move overflow check before array access
  ALSA: hda/realtek: Add mute LED quirk for HP Omen laptop

23 months agonet: openvswitch: fix parsing of nw_proto for IPv6 fragments
Rosemarie O'Riorden [Tue, 21 Jun 2022 20:48:45 +0000 (16:48 -0400)]
net: openvswitch: fix parsing of nw_proto for IPv6 fragments

When a packet enters the OVS datapath and does not match any existing
flows installed in the kernel flow cache, the packet will be sent to
userspace to be parsed, and a new flow will be created. The kernel and
OVS rely on each other to parse packet fields in the same way so that
packets will be handled properly.

As per the design document linked below, OVS expects all later IPv6
fragments to have nw_proto=44 in the flow key, so they can be correctly
matched on OpenFlow rules. OpenFlow controllers create pipelines based
on this design.

This behavior was changed by the commit in the Fixes tag so that
nw_proto equals the next_header field of the last extension header.
However, there is no counterpart for this change in OVS userspace,
meaning that this field is parsed differently between OVS and the
kernel. This is a problem because OVS creates actions based on what is
parsed in userspace, but the kernel-provided flow key is used as a match
criteria, as described in Documentation/networking/openvswitch.rst. This
leads to issues such as packets incorrectly matching on a flow and thus
the wrong list of actions being applied to the packet. Such changes in
packet parsing cannot be implemented without breaking the userspace.

The offending commit is partially reverted to restore the expected
behavior.

The change technically made sense and there is a good reason that it was
implemented, but it does not comply with the original design of OVS.
If in the future someone wants to implement such a change, then it must
be user-configurable and disabled by default to preserve backwards
compatibility with existing OVS versions.

Cc: stable@vger.kernel.org
Fixes: fa642f08839b ("openvswitch: Derive IP protocol number for IPv6 later frags")
Link: https://docs.openvswitch.org/en/latest/topics/design/#fragments
Signed-off-by: Rosemarie O'Riorden <roriorden@redhat.com>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://lore.kernel.org/r/20220621204845.9721-1-roriorden@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agosock: redo the psock vs ULP protection check
Jakub Kicinski [Mon, 20 Jun 2022 19:13:53 +0000 (12:13 -0700)]
sock: redo the psock vs ULP protection check

Commit 8a59f9d1e3d4 ("sock: Introduce sk->sk_prot->psock_update_sk_prot()")
has moved the inet_csk_has_ulp(sk) check from sk_psock_init() to
the new tcp_bpf_update_proto() function. I'm guessing that this
was done to allow creating psocks for non-inet sockets.

Unfortunately the destruction path for psock includes the ULP
unwind, so we need to fail the sk_psock_init() itself.
Otherwise if ULP is already present we'll notice that later,
and call tcp_update_ulp() with the sk_proto of the ULP
itself, which will most likely result in the ULP looping
its callbacks.

Fixes: 8a59f9d1e3d4 ("sock: Introduce sk->sk_prot->psock_update_sk_prot()")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Tested-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/r/20220620191353.1184629-2-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agoRevert "net/tls: fix tls_sk_proto_close executed repeatedly"
Jakub Kicinski [Mon, 20 Jun 2022 19:13:52 +0000 (12:13 -0700)]
Revert "net/tls: fix tls_sk_proto_close executed repeatedly"

This reverts commit 69135c572d1f84261a6de2a1268513a7e71753e2.

This commit was just papering over the issue, ULP should not
get ->update() called with its own sk_prot. Each ULP would
need to add this check.

Fixes: 69135c572d1f ("net/tls: fix tls_sk_proto_close executed repeatedly")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20220620191353.1184629-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agovirtio_net: fix xdp_rxq_info bug after suspend/resume
Stephan Gerhold [Tue, 21 Jun 2022 11:48:44 +0000 (13:48 +0200)]
virtio_net: fix xdp_rxq_info bug after suspend/resume

The following sequence currently causes a driver bug warning
when using virtio_net:

  # ip link set eth0 up
  # echo mem > /sys/power/state (or e.g. # rtcwake -s 10 -m mem)
  <resume>
  # ip link set eth0 down

  Missing register, driver bug
  WARNING: CPU: 0 PID: 375 at net/core/xdp.c:138 xdp_rxq_info_unreg+0x58/0x60
  Call trace:
   xdp_rxq_info_unreg+0x58/0x60
   virtnet_close+0x58/0xac
   __dev_close_many+0xac/0x140
   __dev_change_flags+0xd8/0x210
   dev_change_flags+0x24/0x64
   do_setlink+0x230/0xdd0
   ...

This happens because virtnet_freeze() frees the receive_queue
completely (including struct xdp_rxq_info) but does not call
xdp_rxq_info_unreg(). Similarly, virtnet_restore() sets up the
receive_queue again but does not call xdp_rxq_info_reg().

Actually, parts of virtnet_freeze_down() and virtnet_restore_up()
are almost identical to virtnet_close() and virtnet_open(): only
the calls to xdp_rxq_info_(un)reg() are missing. This means that
we can fix this easily and avoid such problems in the future by
just calling virtnet_close()/open() from the freeze/restore handlers.

Aside from adding the missing xdp_rxq_info calls the only difference
is that the refill work is only cancelled if netif_running(). However,
this should not make any functional difference since the refill work
should only be active if the network interface is actually up.

Fixes: 754b8a21a96d ("virtio_net: setup xdp_rxq_info")
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20220621114845.3650258-1-stephan.gerhold@kernkonzept.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net...
Jakub Kicinski [Thu, 23 Jun 2022 01:59:29 +0000 (18:59 -0700)]
Merge branch '100GbE' of git://git./linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2022-06-21

This series contains updates to ice driver only.

Marcin fixes GTP filters by allowing ignoring of the inner ethertype field.

Wojciech adds VSI handle tracking in order to properly distinguish similar
filters for removal.

Anatolii removes ability to set 1000baseT and 1000baseX fields
concurrently which caused link issues. He also disallows setting
channels to less than the number of Traffic Classes which would cause
NULL pointer dereference.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  ice: ethtool: Prohibit improper channel config for DCB
  ice: ethtool: advertise 1000M speeds properly
  ice: Fix switchdev rules book keeping
  ice: ignore protocol field in GTP offload
====================

Link: https://lore.kernel.org/r/20220621224756.631765-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoigb: Make DMA faster when CPU is active on the PCIe link
Kai-Heng Feng [Tue, 21 Jun 2022 22:10:56 +0000 (15:10 -0700)]
igb: Make DMA faster when CPU is active on the PCIe link

Intel I210 on some Intel Alder Lake platforms can only achieve ~750Mbps
Tx speed via iperf. The RR2DCDELAY shows around 0x2xxx DMA delay, which
will be significantly lower when 1) ASPM is disabled or 2) SoC package
c-state stays above PC3. When the RR2DCDELAY is around 0x1xxx the Tx
speed can reach to ~950Mbps.

According to the I210 datasheet "8.26.1 PCIe Misc. Register - PCIEMISC",
"DMA Idle Indication" doesn't seem to tie to DMA coalesce anymore, so
set it to 1b for "DMA is considered idle when there is no Rx or Tx AND
when there are no TLPs indicating that CPU is active detected on the
PCIe link (such as the host executes CSR or Configuration register read
or write operation)" and performing Tx should also fall under "active
CPU on PCIe link" case.

In addition to that, commit b6e0c419f040 ("igb: Move DMA Coalescing init
code to separate function.") seems to wrongly changed from enabling
E1000_PCIEMISC_LX_DECISION to disabling it, also fix that.

Fixes: b6e0c419f040 ("igb: Move DMA Coalescing init code to separate function.")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220621221056.604304-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet: dsa: qca8k: reduce mgmt ethernet timeout
Christian Marangi [Tue, 21 Jun 2022 15:16:33 +0000 (17:16 +0200)]
net: dsa: qca8k: reduce mgmt ethernet timeout

The current mgmt ethernet timeout is set to 100ms. This value is too
big and would slow down any mdio command in case the mgmt ethernet
packet have some problems on the receiving part.
Reduce it to just 5ms to handle case when some operation are done on the
master port that would cause the mgmt ethernet to not work temporarily.

Fixes: 5950c7c0a68c ("net: dsa: qca8k: add support for mgmt read/write in Ethernet packet")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Link: https://lore.kernel.org/r/20220621151633.11741-1-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet: dsa: qca8k: reset cpu port on MTU change
Christian Marangi [Tue, 21 Jun 2022 15:11:22 +0000 (17:11 +0200)]
net: dsa: qca8k: reset cpu port on MTU change

It was discovered that the Documentation lacks of a fundamental detail
on how to correctly change the MAX_FRAME_SIZE of the switch.

In fact if the MAX_FRAME_SIZE is changed while the cpu port is on, the
switch panics and cease to send any packet. This cause the mgmt ethernet
system to not receive any packet (the slow fallback still works) and
makes the device not reachable. To recover from this a switch reset is
required.

To correctly handle this, turn off the cpu ports before changing the
MAX_FRAME_SIZE and turn on again after the value is applied.

Fixes: f58d2598cf70 ("net: dsa: qca8k: implement the port MTU callbacks")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Link: https://lore.kernel.org/r/20220621151122.10220-1-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoMAINTAINERS: Add a maintainer for OCP Time Card
Vadim Fedorenko [Tue, 21 Jun 2022 23:31:31 +0000 (02:31 +0300)]
MAINTAINERS: Add a maintainer for OCP Time Card

I've been contributing and reviewing patches for ptp_ocp driver for
some time and I'm taking care of it's github mirror. On Jakub's
suggestion, I would like to step forward and become a maintainer for
this driver. This patch adds a dedicated entry to MAINTAINERS.

Signed-off-by: Vadim Fedorenko <vadfed@fb.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Link: https://lore.kernel.org/r/20220621233131.21240-1-vfedorenko@novek.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoMerge tag 'linux-kselftest-fixes-5.19-rc4' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Wed, 22 Jun 2022 19:08:06 +0000 (14:08 -0500)]
Merge tag 'linux-kselftest-fixes-5.19-rc4' of git://git./linux/kernel/git/shuah/linux-kselftest

Pull Kselftest fixes from Shuah Khan:
 "Compile time fixes and run-time resources leaks:

   - Fix clang cross compilation

   - Fix resource leak when return error

   - fix compile error for dma_map_benchmark

   - Fix regression - make use of GUP_TEST_FILE macro"

* tag 'linux-kselftest-fixes-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: make use of GUP_TEST_FILE macro
  selftests: vm: Fix resource leak when return error
  selftests dma: fix compile error for dma_map_benchmark
  selftests: Fix clang cross compilation

23 months agohinic: Replace memcpy() with direct assignment
Kees Cook [Thu, 16 Jun 2022 05:23:12 +0000 (22:23 -0700)]
hinic: Replace memcpy() with direct assignment

Under CONFIG_FORTIFY_SOURCE=y and CONFIG_UBSAN_BOUNDS=y, Clang is bugged
here for calculating the size of the destination buffer (0x10 instead of
0x14). This copy is a fixed size (sizeof(struct fw_section_info_st)), with
the source and dest being struct fw_section_info_st, so the memcpy should
be safe, assuming the index is within bounds, which is UBSAN_BOUNDS's
responsibility to figure out.

Avoid the whole thing and just do a direct assignment. This results in
no change to the executable code.

[This is a duplicate of commit 2c0ab32b73cf ("hinic: Replace memcpy()
 with direct assignment") which was applied to net-next.]

Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Tom Rix <trix@redhat.com>
Cc: llvm@lists.linux.dev
Link: https://github.com/ClangBuiltLinux/linux/issues/1592
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build
Link: https://lore.kernel.org/r/20220616052312.292861-1-keescook@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoALSA: hda/realtek: Add quirk for Clevo NS50PU
Tim Crawford [Wed, 22 Jun 2022 15:00:17 +0000 (09:00 -0600)]
ALSA: hda/realtek: Add quirk for Clevo NS50PU

Fixes headset detection on Clevo NS50PU.

Signed-off-by: Tim Crawford <tcrawford@system76.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220622150017.9897-1-tcrawford@system76.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
23 months agoMerge tag '9p-for-5.19-rc4' of https://github.com/martinetd/linux
Linus Torvalds [Wed, 22 Jun 2022 13:09:49 +0000 (08:09 -0500)]
Merge tag '9p-for-5.19-rc4' of https://github.com/martinetd/linux

Pull 9pfs fixes from Dominique Martinet:
 "A couple of fid refcount and fscache fixes:

   - fid refcounting was incorrect in some corner cases and would leak
     resources, only freed at umount time. The first three commits fix
     three such cases

   - 'cache=loose' or fscache was broken when trying to write a partial
     page to a file with no read permission since the rework a few
     releases ago.

     The fix taken here is just to restore old behavior of using the
     special 'writeback_fid' for such reads, which is open as root/RDWR
     and such not get complains that we try to read on a WRONLY fid.

     Long-term it'd be nice to get rid of this and not issue the read at
     all (skip cache?) in such cases, but that direction hasn't
     progressed"

* tag '9p-for-5.19-rc4' of https://github.com/martinetd/linux:
  9p: fix EBADF errors in cached mode
  9p: Fix refcounting during full path walks for fid lookups
  9p: fix fid refcount leak in v9fs_vfs_get_link
  9p: fix fid refcount leak in v9fs_vfs_atomic_open_dotl

23 months agoRevert "drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c"
Jakub Kicinski [Mon, 20 Jun 2022 19:12:37 +0000 (12:12 -0700)]
Revert "drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c"

This reverts commit 8fc74d18639a2402ca52b177e990428e26ea881f.

BAR0 is the main (only?) register bank for this device. We most
obviously can't unmap it before the netdev is unregistered.
This was pointed out in review but the patch got reposted and
merged, anyway.

The author of the patch was only testing it with a QEMU model,
which I presume does not emulate enough for the netdev to be brought
up (author's replies are not visible in lore because they kept sending
their emails in HTML).

Link: https://lore.kernel.org/all/20220616085059.680dc215@kernel.org/
Fixes: 8fc74d18639a ("drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Jakub Kicinski [Wed, 22 Jun 2022 05:41:40 +0000 (22:41 -0700)]
Merge git://git./linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

1) Use get_random_u32() instead of prandom_u32_state() in nft_meta
   and nft_numgen, from Florian Westphal.

2) Incorrect list head in nfnetlink_cttimeout in recent update coming
   from previous development cycle. Also from Florian.

3) Incorrect path to pktgen scripts for nft_concat_range.sh selftest.
   From Jie2x Zhou.

4) Two fixes for the for nft_fwd and nft_dup egress support, from Florian.

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nf_dup_netdev: add and use recursion counter
  netfilter: nf_dup_netdev: do not push mac header a second time
  selftests: netfilter: correct PKTGEN_SCRIPT_PATHS in nft_concat_range.sh
  netfilter: cttimeout: fix slab-out-of-bounds read typo in cttimeout_net_exit
  netfilter: use get_random_u32 instead of prandom
====================

Link: https://lore.kernel.org/r/20220621085618.3975-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet: phy: smsc: Disable Energy Detect Power-Down in interrupt mode
Lukas Wunner [Mon, 20 Jun 2022 11:04:50 +0000 (13:04 +0200)]
net: phy: smsc: Disable Energy Detect Power-Down in interrupt mode

Simon reports that if two LAN9514 USB adapters are directly connected
without an intermediate switch, the link fails to come up and link LEDs
remain dark.  The issue was introduced by commit 1ce8b37241ed ("usbnet:
smsc95xx: Forward PHY interrupts to PHY driver to avoid polling").

The PHY suffers from a known erratum wherein link detection becomes
unreliable if Energy Detect Power-Down is used.  In poll mode, the
driver works around the erratum by briefly disabling EDPD for 640 msec
to detect a neighbor, then re-enabling it to save power.

In interrupt mode, no interrupt is signaled if EDPD is used by both link
partners, so it must not be enabled at all.

We'll recoup the power savings by enabling SUSPEND1 mode on affected
LAN95xx chips in a forthcoming commit.

Fixes: 1ce8b37241ed ("usbnet: smsc95xx: Forward PHY interrupts to PHY driver to avoid polling")
Reported-by: Simon Han <z.han@kunbus.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/439a3f3168c2f9d44b5fd9bb8d2b551711316be6.1655714438.git.lukas@wunner.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoice: ethtool: Prohibit improper channel config for DCB
Anatolii Gerasymenko [Mon, 6 Jun 2022 07:01:21 +0000 (09:01 +0200)]
ice: ethtool: Prohibit improper channel config for DCB

Do not allow setting less channels, than Traffic Classes there are
via ethtool. There must be at least one channel per Traffic Class.

If you set less channels, than Traffic Classes there are, then during
ice_vsi_rebuild there would be allocated only the requested amount
of tx/rx rings in ice_vsi_alloc_arrays. But later in ice_vsi_setup_q_map
there would be requested at least one channel per Traffic Class. This
results in setting num_rxq > alloc_rxq and num_txq > alloc_txq.
Later, there would be a NULL pointer dereference in
ice_vsi_map_rings_to_vectors, because we go beyond of rx_rings or
tx_rings arrays.

Change ice_set_channels() to return error if you try to allocate less
channels, than Traffic Classes there are.
Change ice_vsi_setup_q_map() and ice_vsi_setup_q_map_mqprio() to return
status code instead of void.
Add error handling for ice_vsi_setup_q_map() and
ice_vsi_setup_q_map_mqprio() in ice_vsi_init() and ice_vsi_cfg_tc().

[53753.889983] INFO: Flow control is disabled for this traffic class (0) on this vsi.
[53763.984862] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
[53763.992915] PGD 14b45f5067 P4D 0
[53763.996444] Oops: 0002 [#1] SMP NOPTI
[53764.000312] CPU: 12 PID: 30661 Comm: ethtool Kdump: loaded Tainted: GOE    --------- -  - 4.18.0-240.el8.x86_64 #1
[53764.011825] Hardware name: Intel Corporation WilsonCity/WilsonCity, BIOS WLYDCRB1.SYS.0020.P21.2012150710 12/15/2020
[53764.022584] RIP: 0010:ice_vsi_map_rings_to_vectors+0x7e/0x120 [ice]
[53764.029089] Code: 41 0d 0f b7 b7 12 05 00 00 0f b6 d0 44 29 de 44 0f b7 c6 44 01 c2 41 39 d0 7d 2d 4c 8b 47 28 44 0f b7 ce 83 c6 01 4f 8b 04 c8 <49> 89 48 28 4                           c 8b 89 b8 01 00 00 4d 89 08 4c 89 81 b8 01 00 00 44
[53764.048379] RSP: 0018:ff550dd88ea47b20 EFLAGS: 00010206
[53764.053884] RAX: 0000000000000002 RBX: 0000000000000004 RCX: ff385ea42fa4a018
[53764.061301] RDX: 0000000000000006 RSI: 0000000000000005 RDI: ff385e9baeedd018
[53764.068717] RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000004
[53764.076133] R10: 0000000000000002 R11: 0000000000000004 R12: 0000000000000000
[53764.083553] R13: 0000000000000000 R14: ff385e658fdd9000 R15: ff385e9baeedd018
[53764.090976] FS:  000014872c5b5740(0000) GS:ff385e847f100000(0000) knlGS:0000000000000000
[53764.099362] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[53764.105409] CR2: 0000000000000028 CR3: 0000000a820fa002 CR4: 0000000000761ee0
[53764.112851] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[53764.120301] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[53764.127747] PKRU: 55555554
[53764.130781] Call Trace:
[53764.133564]  ice_vsi_rebuild+0x611/0x870 [ice]
[53764.138341]  ice_vsi_recfg_qs+0x94/0x100 [ice]
[53764.143116]  ice_set_channels+0x1a8/0x3e0 [ice]
[53764.147975]  ethtool_set_channels+0x14e/0x240
[53764.152667]  dev_ethtool+0xd74/0x2a10
[53764.156665]  ? __mod_lruvec_state+0x44/0x110
[53764.161280]  ? __mod_lruvec_state+0x44/0x110
[53764.165893]  ? page_add_file_rmap+0x15/0x170
[53764.170518]  ? inet_ioctl+0xd1/0x220
[53764.174445]  ? netdev_run_todo+0x5e/0x290
[53764.178808]  dev_ioctl+0xb5/0x550
[53764.182485]  sock_do_ioctl+0xa0/0x140
[53764.186512]  sock_ioctl+0x1a8/0x300
[53764.190367]  ? selinux_file_ioctl+0x161/0x200
[53764.195090]  do_vfs_ioctl+0xa4/0x640
[53764.199035]  ksys_ioctl+0x60/0x90
[53764.202722]  __x64_sys_ioctl+0x16/0x20
[53764.206845]  do_syscall_64+0x5b/0x1a0
[53764.210887]  entry_SYSCALL_64_after_hwframe+0x65/0xca

Fixes: 87324e747fde ("ice: Implement ethtool ops for channels")
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
23 months agoice: ethtool: advertise 1000M speeds properly
Anatolii Gerasymenko [Mon, 20 Jun 2022 07:47:05 +0000 (09:47 +0200)]
ice: ethtool: advertise 1000M speeds properly

In current implementation ice_update_phy_type enables all link modes
for selected speed. This approach doesn't work for 1000M speeds,
because both copper (1000baseT) and optical (1000baseX) standards
cannot be enabled at once.

Fix this, by adding the function `ice_set_phy_type_from_speed()`
for 1000M speeds.

Fixes: 48cb27f2fd18 ("ice: Implement handlers for ethtool PHY/link operations")
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
23 months agomips: lantiq: Add missing of_node_put() in irq.c
Liang He [Tue, 21 Jun 2022 15:41:25 +0000 (23:41 +0800)]
mips: lantiq: Add missing of_node_put() in irq.c

In icu_of_init(), of_find_compatible_node() will return a node
pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.

Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
23 months agoice: Fix switchdev rules book keeping
Wojciech Drewek [Mon, 23 May 2022 09:41:55 +0000 (11:41 +0200)]
ice: Fix switchdev rules book keeping

Adding two filters with same matching criteria ends up with
one rule in hardware with act = ICE_FWD_TO_VSI_LIST.
In order to remove them properly we have to keep the
information about vsi handle which is used in VSI bitmap
(ice_adv_fltr_mgmt_list_entry::vsi_list_info::vsi_map).

Fixes: 0d08a441fb1a ("ice: ndo_setup_tc implementation for PF")
Reported-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
23 months agoPM: hibernate: Use kernel_can_power_off()
Dmitry Osipenko [Fri, 17 Jun 2022 12:24:02 +0000 (15:24 +0300)]
PM: hibernate: Use kernel_can_power_off()

Use new kernel_can_power_off() API instead of legacy pm_power_off global
variable to fix regressed hibernation to disk where machine no longer
powers off when it should because ACPI power driver transitioned to the
new sys-off based API and it doesn't use pm_power_off anymore.

Fixes: 98f30d0ecf79 ("ACPI: power: Switch to sys-off handler API")
Tested-by: Ken Moffat <zarniwhoop@ntlworld.com>
Reported-by: Ken Moffat <zarniwhhop@ntlworld.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
23 months agoice: ignore protocol field in GTP offload
Marcin Szycik [Mon, 9 May 2022 19:01:18 +0000 (21:01 +0200)]
ice: ignore protocol field in GTP offload

Commit 34a897758efe ("ice: Add support for inner etype in switchdev")
added the ability to match on inner ethertype. A side effect of that change
is that it is now impossible to add some filters for protocols which do not
contain inner ethtype field. tc requires the protocol field to be specified
when providing certain other options, e.g. src_ip. This is a problem in
case of GTP - when user wants to specify e.g. src_ip, they also need to
specify protocol in tc command (otherwise tc fails with: Illegal "src_ip").
Because GTP is a tunnel, the protocol field is treated as inner protocol.
GTP does not contain inner ethtype field and the filter cannot be added.

To fix this, ignore the ethertype field in case of GTP filters.

Fixes: 9a225f81f540 ("ice: Support GTP-U and GTP-C offload in switchdev")
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
23 months agoMerge tag 'efi-urgent-for-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 21 Jun 2022 17:20:11 +0000 (12:20 -0500)]
Merge tag 'efi-urgent-for-v5.19-1' of git://git./linux/kernel/git/efi/efi

Pull EFI fixes from Ard Biesheuvel:

 - remove pointless include of asm/efi.h, which does not exist on ia64

 - fix DXE service marshalling prototype for mixed mode

* tag 'efi-urgent-for-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi/x86: libstub: Fix typo in __efi64_argmap* name
  efi: sysfb_efi: remove unnecessary <asm/efi.h> include

23 months agoMerge tag 'certs-20220621' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells...
Linus Torvalds [Tue, 21 Jun 2022 17:13:53 +0000 (12:13 -0500)]
Merge tag 'certs-20220621' of git://git./linux/kernel/git/dhowells/linux-fs

Pull signature checking selftest from David Howells:
 "The signature checking code, as used by module signing, kexec, etc.,
  is non-FIPS compliant as there is no selftest.

  For a kernel to be FIPS-compliant, signature checking would have to be
  tested before being used, and the box would need to panic if it's not
  available (probably reasonable as simply disabling signature checking
  would prevent you from loading any driver modules).

  Deal with this by adding a minimal test.

  This is split into two patches: the first moves load_certificate_list()
  to the same place as the X.509 code to make it more accessible
  internally; the second adds a selftest"

* tag 'certs-20220621' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  certs: Add FIPS selftests
  certs: Move load_certificate_list() to be with the asymmetric keys code

23 months agoMerge tag 'for-5.19-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Tue, 21 Jun 2022 17:06:04 +0000 (12:06 -0500)]
Merge tag 'for-5.19-rc3-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - print more error messages for invalid mount option values

 - prevent remount with v1 space cache for subpage filesystem

 - fix hang during unmount when block group reclaim task is running

* tag 'for-5.19-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: add error messages to all unrecognized mount options
  btrfs: prevent remounting to v1 space cache for subpage mount
  btrfs: fix hang during unmount when block group reclaim task is running

23 months agoafs: Fix dynamic root getattr
David Howells [Tue, 21 Jun 2022 14:59:57 +0000 (15:59 +0100)]
afs: Fix dynamic root getattr

The recent patch to make afs_getattr consult the server didn't account
for the pseudo-inodes employed by the dynamic root-type afs superblock
not having a volume or a server to access, and thus an oops occurs if
such a directory is stat'd.

Fix this by checking to see if the vnode->volume pointer actually points
anywhere before following it in afs_getattr().

This can be tested by stat'ing a directory in /afs.  It may be
sufficient just to do "ls /afs" and the oops looks something like:

        BUG: kernel NULL pointer dereference, address: 0000000000000020
        ...
        RIP: 0010:afs_getattr+0x8b/0x14b
        ...
        Call Trace:
         <TASK>
         vfs_statx+0x79/0xf5
         vfs_fstatat+0x49/0x62

Fixes: 2aeb8c86d499 ("afs: Fix afs_getattr() to refetch file status if callback break occurred")
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
Tested-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/165408450783.1031787.7941404776393751186.stgit@warthog.procyon.org.uk/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
23 months agoefi/x86: libstub: Fix typo in __efi64_argmap* name
Evgeniy Baskov [Thu, 9 Jun 2022 11:37:30 +0000 (14:37 +0300)]
efi/x86: libstub: Fix typo in __efi64_argmap* name

The actual name of the DXE services function used
is set_memory_space_attributes(), not set_memory_space_descriptor().

Change EFI mixed mode helper macro name to match the function name.

Fixes: 31f1a0edff78 ("efi/x86: libstub: Make DXE calls mixed mode safe")
Signed-off-by: Evgeniy Baskov <baskov@ispras.ru>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
23 months agoefi: sysfb_efi: remove unnecessary <asm/efi.h> include
Javier Martinez Canillas [Fri, 10 Jun 2022 09:00:05 +0000 (11:00 +0200)]
efi: sysfb_efi: remove unnecessary <asm/efi.h> include

Nothing defined in the header is used by drivers/firmware/efi/sysfb_efi.c
but also, including it can lead to build errors when built on arches that
don't have an asm/efi.h header file.

This can happen for example if a driver that is built when COMPILE_TEST is
enabled selects the SYSFB symbol, e.g. on powerpc with allyesconfig:

drivers/firmware/efi/sysfb_efi.c:29:10: fatal error: asm/efi.h: No such file or directory
   29 | #include <asm/efi.h>
      |          ^~~~~~~~~~~

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
23 months agomips: dts: ingenic: Add TCU clock to x1000/x1830 tcu device node
Aidan MacDonald [Fri, 17 Jun 2022 12:18:05 +0000 (13:18 +0100)]
mips: dts: ingenic: Add TCU clock to x1000/x1830 tcu device node

This clock is a gate for the TCU hardware block on these SoCs, but
it wasn't included in the device tree since the ingenic-tcu driver
erroneously did not request it.

Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
23 months agocerts: Add FIPS selftests
David Howells [Wed, 18 May 2022 16:15:34 +0000 (17:15 +0100)]
certs: Add FIPS selftests

Add some selftests for signature checking when FIPS mode is enabled.  These
need to be done before we start actually using the signature checking for
things and must panic the kernel upon failure.

Note that the tests must not check the blacklist lest this provide a way to
prevent a kernel from booting by installing a hash of a test key in the
appropriate UEFI table.

Reported-by: Simo Sorce <simo@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Herbert Xu <herbert@gondor.apana.org.au>
cc: keyrings@vger.kernel.org
cc: linux-crypto@vger.kernel.org
Link: https://lore.kernel.org/r/165515742832.1554877.2073456606206090838.stgit@warthog.procyon.org.uk/
23 months agocerts: Move load_certificate_list() to be with the asymmetric keys code
David Howells [Wed, 18 May 2022 22:48:09 +0000 (23:48 +0100)]
certs: Move load_certificate_list() to be with the asymmetric keys code

Move load_certificate_list(), which loads a series of binary X.509
certificates from a blob and inserts them as keys into a keyring, to be
with the asymmetric keys code that it drives.

This makes it easier to add FIPS selftest code in which we need to load up
a private keyring for the tests to use.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Herbert Xu <herbert@gondor.apana.org.au>
cc: keyrings@vger.kernel.org
cc: linux-crypto@vger.kernel.org
Link: https://lore.kernel.org/r/165515742145.1554877.13488098107542537203.stgit@warthog.procyon.org.uk/
23 months agomips/pic32/pic32mzda: Fix refcount leak bugs
Liang He [Sun, 19 Jun 2022 04:54:27 +0000 (12:54 +0800)]
mips/pic32/pic32mzda: Fix refcount leak bugs

of_find_matching_node(), of_find_compatible_node() and
of_find_node_by_path() will return node pointers with refcout
incremented. We should call of_node_put() when they are not
used anymore.

Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
23 months agomips: lantiq: xway: Fix refcount leak bug in sysctrl
Liang He [Fri, 17 Jun 2022 12:25:05 +0000 (20:25 +0800)]
mips: lantiq: xway: Fix refcount leak bug in sysctrl

In ltq_soc_init(), of_find_compatible_node() will return a node
pointer with refcount incremented. We should use of_node_put() when
it is not used anymore.

Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
23 months agomips: lantiq: falcon: Fix refcount leak bug in sysctrl
Liang He [Fri, 17 Jun 2022 12:19:58 +0000 (20:19 +0800)]
mips: lantiq: falcon: Fix refcount leak bug in sysctrl

In ltq_soc_init(), of_find_compatible_node() will return a node pointer
with refcount incremented. We should use of_node_put() when it is not
used anymore.

Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
23 months agomips: ralink: Fix refcount leak in of.c
Liang He [Fri, 17 Jun 2022 03:39:29 +0000 (11:39 +0800)]
mips: ralink: Fix refcount leak in of.c

In plat_of_remap_node(), plat_of_remap_node() will return a node
pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.

Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
23 months agomips: mti-malta: Fix refcount leak in malta-time.c
Liang He [Thu, 16 Jun 2022 14:27:56 +0000 (22:27 +0800)]
mips: mti-malta: Fix refcount leak in malta-time.c

In update_gic_frequency_dt(), of_find_compatible_node() will return
a node pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.

Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
23 months agoarch: mips: generic: Add missing of_node_put() in board-ranchu.c
Liang He [Wed, 15 Jun 2022 14:11:23 +0000 (22:11 +0800)]
arch: mips: generic: Add missing of_node_put() in board-ranchu.c

In ranchu_measure_hpt_freq(), of_find_compatible_node() will return
a node pointer with refcount incremented. We should use of_put_node()
when it is not used anymore.

Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
23 months agoMIPS: Remove repetitive increase irq_err_count
huhai [Fri, 10 Jun 2022 11:14:20 +0000 (19:14 +0800)]
MIPS: Remove repetitive increase irq_err_count

commit 979934da9e7a ("[PATCH] mips: update IRQ handling for vr41xx") added
a function irq_dispatch, and it'll increase irq_err_count when the get_irq
callback returns a negative value, but increase irq_err_count in get_irq
was not removed.

And also, modpost complains once gpio-vr41xx drivers become modules.
  ERROR: modpost: "irq_err_count" [drivers/gpio/gpio-vr41xx.ko] undefined!

So it would be a good idea to remove repetitive increase irq_err_count in
get_irq callback.

Fixes: 27fdd325dace ("MIPS: Update VR41xx GPIO driver to use gpiolib")
Fixes: 979934da9e7a ("[PATCH] mips: update IRQ handling for vr41xx")
Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: huhai <huhai@kylinos.cn>
Signed-off-by: Genjian Zhang <zhanggenjian@kylinos.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
23 months agoALSA: hda: Fix discovery of i915 graphics PCI device
Takashi Iwai [Tue, 21 Jun 2022 12:00:44 +0000 (14:00 +0200)]
ALSA: hda: Fix discovery of i915 graphics PCI device

It's been reported that the recent fix for skipping the
component-binding with D-GPU caused a regression on some systems; it
resulted in the completely missing component binding with i915 GPU.

The problem was the use of pci_get_class() function.  It matches with
the full PCI class bits, while we want to match only partially the PCI
base class bits.  So, when a system has an i915 graphics device with
the PCI class 0380, it won't hit because we're looking for only the
PCI class 0300.

This patch fixes i915_gfx_present() to look up each PCI device and
match with PCI base class explicitly instead of pci_get_class().

Fixes: c9db8a30d9f0 ("ALSA: hda/i915 - skip acomp init if no matching display")
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Tested-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Cc: <stable@vger.kernel.org>
Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1200611
Link: https://lore.kernel.org/r/87bkunztec.wl-tiwai@suse.de
Link: https://lore.kernel.org/r/20220621120044.11573-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
23 months agonetfilter: nf_dup_netdev: add and use recursion counter
Florian Westphal [Mon, 20 Jun 2022 14:17:31 +0000 (16:17 +0200)]
netfilter: nf_dup_netdev: add and use recursion counter

Now that the egress function can be called from egress hook, we need
to avoid recursive calls into the nf_tables traverser, else crash.

Fixes: f87b9464d152 ("netfilter: nft_fwd_netdev: Support egress hook")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
23 months agonetfilter: nf_dup_netdev: do not push mac header a second time
Florian Westphal [Mon, 20 Jun 2022 14:17:30 +0000 (16:17 +0200)]
netfilter: nf_dup_netdev: do not push mac header a second time

Eric reports skb_under_panic when using dup/fwd via bond+egress hook.
Before pushing mac header, we should make sure that we're called from
ingress to put back what was pulled earlier.

In egress case, the MAC header is already there; we should leave skb
alone.

While at it be more careful here: skb might have been altered and
headroom reduced, so add a skb_cow() before so that headroom is
increased if necessary.

nf_do_netdev_egress() assumes skb ownership (it normally ends with
a call to dev_queue_xmit), so we must free the packet on error.

Fixes: f87b9464d152 ("netfilter: nft_fwd_netdev: Support egress hook")
Reported-by: Eric Garver <eric@garver.life>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
23 months agoselftests: netfilter: correct PKTGEN_SCRIPT_PATHS in nft_concat_range.sh
Jie2x Zhou [Thu, 16 Jun 2022 07:40:46 +0000 (15:40 +0800)]
selftests: netfilter: correct PKTGEN_SCRIPT_PATHS in nft_concat_range.sh

Before change:
make -C netfilter
 TEST: performance
   net,port                                                      [SKIP]
   perf not supported
   port,net                                                      [SKIP]
   perf not supported
   net6,port                                                     [SKIP]
   perf not supported
   port,proto                                                    [SKIP]
   perf not supported
   net6,port,mac                                                 [SKIP]
   perf not supported
   net6,port,mac,proto                                           [SKIP]
   perf not supported
   net,mac                                                       [SKIP]
   perf not supported

After change:
   net,mac                                                       [ OK ]
     baseline (drop from netdev hook):               2061098pps
     baseline hash (non-ranged entries):             1606741pps
     baseline rbtree (match on first field only):    1191607pps
     set with  1000 full, ranged entries:            1639119pps
ok 8 selftests: netfilter: nft_concat_range.sh

Fixes: 611973c1e06f ("selftests: netfilter: Introduce tests for sets with range concatenation")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jie2x Zhou <jie2x.zhou@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
23 months agofilemap: Handle sibling entries in filemap_get_read_batch()
Matthew Wilcox (Oracle) [Sat, 18 Jun 2022 00:00:17 +0000 (20:00 -0400)]
filemap: Handle sibling entries in filemap_get_read_batch()

If a read races with an invalidation followed by another read, it is
possible for a folio to be replaced with a higher-order folio.  If that
happens, we'll see a sibling entry for the new folio in the next iteration
of the loop.  This manifests as a NULL pointer dereference while holding
the RCU read lock.

Handle this by simply returning.  The next call will find the new folio
and handle it correctly.  The other ways of handling this rare race are
more complex and it's just not worth it.

Reported-by: Dave Chinner <david@fromorbit.com>
Reported-by: Brian Foster <bfoster@redhat.com>
Debugged-by: Brian Foster <bfoster@redhat.com>
Tested-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Fixes: cbd59c48ae2b ("mm/filemap: use head pages in generic_file_buffered_read")
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
23 months agofilemap: Correct the conditions for marking a folio as accessed
Matthew Wilcox (Oracle) [Fri, 10 Jun 2022 18:44:41 +0000 (14:44 -0400)]
filemap: Correct the conditions for marking a folio as accessed

We had an off-by-one error which meant that we never marked the first page
in a read as accessed.  This was visible as a slowdown when re-reading
a file as pages were being evicted from cache too soon.  In reviewing
this code, we noticed a second bug where a multi-page folio would be
marked as accessed multiple times when doing reads that were less than
the size of the folio.

Abstract the comparison of whether two file positions are in the same
folio into a new function, fixing both of these bugs.

Reported-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
23 months agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Mon, 20 Jun 2022 14:35:04 +0000 (09:35 -0500)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Eight fixes, all in drivers (ufs, scsi_debug, storvsc, iscsi, ibmvfc).

  Apart from the ufs command clearing updates, these are mostly minor
  and obvious fixes"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ibmvfc: Store vhost pointer during subcrq allocation
  scsi: ibmvfc: Allocate/free queue resource only during probe/remove
  scsi: storvsc: Correct reporting of Hyper-V I/O size limits
  scsi: ufs: Fix a race between the interrupt handler and the reset handler
  scsi: ufs: Support clearing multiple commands at once
  scsi: ufs: Simplify ufshcd_clear_cmd()
  scsi: iscsi: Exclude zero from the endpoint ID range
  scsi: scsi_debug: Fix zone transition to full condition

23 months agoMerge tag 'perf-tools-fixes-for-v5.19-2022-06-19' of git://git.kernel.org/pub/scm...
Linus Torvalds [Mon, 20 Jun 2022 14:31:03 +0000 (09:31 -0500)]
Merge tag 'perf-tools-fixes-for-v5.19-2022-06-19' of git://git./linux/kernel/git/acme/linux

Pull perf tool fixes from Arnaldo Carvalho de Melo:

 - Don't set data source if it's not a memory operation in ARM SPE
   (Statistical Profiling Extensions).

 - Fix handling of exponent floating point values in perf stat
   expressions.

 - Don't leak fd on failure on libperf open.

 - Fix 'perf test' CPU topology test for PPC guest systems.

 - Fix undefined behaviour on breakpoint account 'perf test' entry.

 - Record only user callchains on the "Check ARM64 callgraphs are
   complete in FP mode" 'perf test' entry.

 - Fix "perf stat CSV output linter" test on s390.

 - Sync batch of kernel headers with tools/perf/.

* tag 'perf-tools-fixes-for-v5.19-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  tools headers UAPI: Sync linux/prctl.h with the kernel sources
  perf metrics: Ensure at least 1 id per metric
  tools headers arm64: Sync arm64's cputype.h with the kernel sources
  tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources
  perf arm-spe: Don't set data source if it's not a memory operation
  perf expr: Allow exponents on floating point values
  perf test topology: Use !strncmp(right platform) to fix guest PPC comparision check
  perf test: Record only user callchains on the "Check Arm64 callgraphs are complete in fp mode" test
  perf beauty: Update copy of linux/socket.h with the kernel sources
  perf test: Fix variable length array undefined behavior in bp_account
  libperf evsel: Open shouldn't leak fd on failure
  perf test: Fix "perf stat CSV output linter" test on s390
  perf unwind: Fix uninitialized variable

23 months agoMerge tag 'slab-for-5.19-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 20 Jun 2022 14:28:51 +0000 (09:28 -0500)]
Merge tag 'slab-for-5.19-fixup' of git://git./linux/kernel/git/vbabka/slab

Pull slab fixes from Vlastimil Babka:

 - A slub fix for PREEMPT_RT locking semantics from Sebastian.

 - A slub fix for state corruption due to a possible race scenario from
   Jann.

* tag 'slab-for-5.19-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  mm/slub: add missing TID updates on slab deactivation
  mm/slub: Move the stackdepot related allocation out of IRQ-off section.

23 months agoudmabuf: add back sanity check
Gerd Hoffmann [Mon, 20 Jun 2022 07:15:47 +0000 (09:15 +0200)]
udmabuf: add back sanity check

Check vm_fault->pgoff before using it.  When we removed the warning, we
also removed the check.

Fixes: 7b26e4e2119d ("udmabuf: drop WARN_ON() check.")
Reported-by: zdi-disclosures@trendmicro.com
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
23 months agoALSA: hda/via: Fix missing beep setup
Takashi Iwai [Mon, 20 Jun 2022 10:40:08 +0000 (12:40 +0200)]
ALSA: hda/via: Fix missing beep setup

Like the previous fix for Conexant codec, the beep_nid has to be set
up before calling snd_hda_gen_parse_auto_config(); otherwise it'd miss
the path setup.

Fix the call order for addressing the missing beep setup.

Fixes: 0e8f9862493a ("ALSA: hda/via - Simplify control management")
Cc: <stable@vger.kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216152
Link: https://lore.kernel.org/r/20220620104008.1994-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
23 months agoALSA: hda/conexant: Fix missing beep setup
Takashi Iwai [Mon, 20 Jun 2022 10:40:07 +0000 (12:40 +0200)]
ALSA: hda/conexant: Fix missing beep setup

Currently the Conexant codec driver sets up the beep NID after calling
snd_hda_gen_parse_auto_config().  It turned out that this results in
the insufficient setup for the beep control, as the generic parser
handles the fake path in snd_hda_gen_parse_auto_config() only if the
beep_nid is set up beforehand.

For dealing with the beep widget properly, call cx_auto_parse_beep()
before snd_hda_gen_parse_auto_config() call.

Fixes: 51e19ca5f755 ("ALSA: hda/conexant - Clean up beep code")
Cc: <stable@vger.kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216152
Link: https://lore.kernel.org/r/20220620104008.1994-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
23 months agorandom: update comment from copy_to_user() -> copy_to_iter()
Jason A. Donenfeld [Mon, 20 Jun 2022 09:03:48 +0000 (11:03 +0200)]
random: update comment from copy_to_user() -> copy_to_iter()

This comment wasn't updated when we moved from read() to read_iter(), so
this patch makes the trivial fix.

Fixes: 1b388e7765f2 ("random: convert to using fops->read_iter()")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
23 months agonet/tls: fix tls_sk_proto_close executed repeatedly
Ziyang Xuan [Mon, 20 Jun 2022 04:35:08 +0000 (12:35 +0800)]
net/tls: fix tls_sk_proto_close executed repeatedly

After setting the sock ktls, update ctx->sk_proto to sock->sk_prot by
tls_update(), so now ctx->sk_proto->close is tls_sk_proto_close(). When
close the sock, tls_sk_proto_close() is called for sock->sk_prot->close
is tls_sk_proto_close(). But ctx->sk_proto->close() will be executed later
in tls_sk_proto_close(). Thus tls_sk_proto_close() executed repeatedly
occurred. That will trigger the following bug.

=================================================================
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
RIP: 0010:tls_sk_proto_close+0xd8/0xaf0 net/tls/tls_main.c:306
Call Trace:
 <TASK>
 tls_sk_proto_close+0x356/0xaf0 net/tls/tls_main.c:329
 inet_release+0x12e/0x280 net/ipv4/af_inet.c:428
 __sock_release+0xcd/0x280 net/socket.c:650
 sock_close+0x18/0x20 net/socket.c:1365

Updating a proto which is same with sock->sk_prot is incorrect. Add proto
and sock->sk_prot equality check at the head of tls_update() to fix it.

Fixes: 95fa145479fb ("bpf: sockmap/tls, close can race with map free")
Reported-by: syzbot+29c3c12f3214b85ad081@syzkaller.appspotmail.com
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoerspan: do not assume transport header is always set
Eric Dumazet [Mon, 20 Jun 2022 08:35:06 +0000 (01:35 -0700)]
erspan: do not assume transport header is always set

Rewrite tests in ip6erspan_tunnel_xmit() and
erspan_fb_xmit() to not assume transport header is set.

syzbot reported:

WARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 skb_transport_header include/linux/skbuff.h:2911 [inline]
WARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963
Modules linked in:
CPU: 0 PID: 1350 Comm: aoe_tx0 Not tainted 5.19.0-rc2-syzkaller-00160-g274295c6e53f #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:skb_transport_header include/linux/skbuff.h:2911 [inline]
RIP: 0010:ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963
Code: 0f 47 f0 40 88 b5 7f fe ff ff e8 8c 16 4b f9 89 de bf ff ff ff ff e8 a0 12 4b f9 66 83 fb ff 0f 85 1d f1 ff ff e8 71 16 4b f9 <0f> 0b e9 43 f0 ff ff e8 65 16 4b f9 48 8d 85 30 ff ff ff ba 60 00
RSP: 0018:ffffc90005daf910 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 000000000000ffff RCX: 0000000000000000
RDX: ffff88801f032100 RSI: ffffffff882e8d3f RDI: 0000000000000003
RBP: ffffc90005dafab8 R08: 0000000000000003 R09: 000000000000ffff
R10: 000000000000ffff R11: 0000000000000000 R12: ffff888024f21d40
R13: 000000000000a288 R14: 00000000000000b0 R15: ffff888025a2e000
FS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e425000 CR3: 000000006d099000 CR4: 0000000000152ef0
Call Trace:
<TASK>
__netdev_start_xmit include/linux/netdevice.h:4805 [inline]
netdev_start_xmit include/linux/netdevice.h:4819 [inline]
xmit_one net/core/dev.c:3588 [inline]
dev_hard_start_xmit+0x188/0x880 net/core/dev.c:3604
sch_direct_xmit+0x19f/0xbe0 net/sched/sch_generic.c:342
__dev_xmit_skb net/core/dev.c:3815 [inline]
__dev_queue_xmit+0x14a1/0x3900 net/core/dev.c:4219
dev_queue_xmit include/linux/netdevice.h:2994 [inline]
tx+0x6a/0xc0 drivers/block/aoe/aoenet.c:63
kthread+0x1e7/0x3b0 drivers/block/aoe/aoecmd.c:1229
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
</TASK>

Fixes: d5db21a3e697 ("erspan: auto detect truncated ipv6 packets.")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: William Tu <u9012063@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoipv4: fix bind address validity regression tests
Riccardo Paolo Bestetti [Sun, 19 Jun 2022 16:27:35 +0000 (18:27 +0200)]
ipv4: fix bind address validity regression tests

Commit 8ff978b8b222 ("ipv4/raw: support binding to nonlocal addresses")
introduces support for binding to nonlocal addresses, as well as some
basic test coverage for some of the related cases.

Commit b4a028c4d031 ("ipv4: ping: fix bind address validity check")
fixes a regression which incorrectly removed some checks for bind
address validation. In addition, it introduces regression tests for
those specific checks. However, those regression tests are defective, in
that they perform the tests using an incorrect combination of bind
flags. As a result, those tests fail when they should succeed.

This commit introduces additional regression tests for nonlocal binding
and fixes the defective regression tests. It also introduces new
set_sysctl calls for the ipv4_bind test group, as to perform the ICMP
binding tests it is necessary to allow ICMP socket creation by setting
the net.ipv4.ping_group_range knob.

Fixes: b4a028c4d031 ("ipv4: ping: fix bind address validity check")
Reported-by: Riccardo Paolo Bestetti <pbl@bestov.io>
Signed-off-by: Riccardo Paolo Bestetti <pbl@bestov.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoALSA: memalloc: Drop x86-specific hack for WC allocations
Takashi Iwai [Mon, 20 Jun 2022 07:34:40 +0000 (09:34 +0200)]
ALSA: memalloc: Drop x86-specific hack for WC allocations

The recent report for a crash on Haswell machines implied that the
x86-specific (rather hackish) implementation for write-cache memory
buffer allocation in ALSA core is buggy with the recent kernel in some
corner cases.  This patch drops the x86-specific implementation and
uses the standard dma_alloc_wc() & co generically for avoiding the bug
and also for simplification.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216112
Cc: <stable@vger.kernel.org> # v5.18+
Link: https://lore.kernel.org/r/20220620073440.7514-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
23 months agorandom: quiet urandom warning ratelimit suppression message
Jason A. Donenfeld [Thu, 16 Jun 2022 13:00:51 +0000 (15:00 +0200)]
random: quiet urandom warning ratelimit suppression message

random.c ratelimits how much it warns about uninitialized urandom reads
using __ratelimit(). When the RNG is finally initialized, it prints the
number of missed messages due to ratelimiting.

It has been this way since that functionality was introduced back in
2018. Recently, cc1e127bfa95 ("random: remove ratelimiting for in-kernel
unseeded randomness") put a bit more stress on the urandom ratelimiting,
which teased out a bug in the implementation.

Specifically, when under pressure, __ratelimit() will print its own
message and reset the count back to 0, making the final message at the
end less useful. Secondly, it does so as a pr_warn(), which apparently
is undesirable for people's CI.

Fortunately, __ratelimit() has the RATELIMIT_MSG_ON_RELEASE flag exactly
for this purpose, so we set the flag.

Fixes: 4e00b339e264 ("random: rate limit unseeded randomness warnings")
Cc: stable@vger.kernel.org
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Reported-by: Ron Economos <re@w6rz.net>
Tested-by: Ron Economos <re@w6rz.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
23 months agorandom: schedule mix_interrupt_randomness() less often
Jason A. Donenfeld [Thu, 16 Jun 2022 00:03:12 +0000 (02:03 +0200)]
random: schedule mix_interrupt_randomness() less often

It used to be that mix_interrupt_randomness() would credit 1 bit each
time it ran, and so add_interrupt_randomness() would schedule mix() to
run every 64 interrupts, a fairly arbitrary number, but nonetheless
considered to be a decent enough conservative estimate.

Since e3e33fc2ea7f ("random: do not use input pool from hard IRQs"),
mix() is now able to credit multiple bits, depending on the number of
calls to add(). This was done for reasons separate from this commit, but
it has the nice side effect of enabling this patch to schedule mix()
less often.

Currently the rules are:
a) Credit 1 bit for every 64 calls to add().
b) Schedule mix() once a second that add() is called.
c) Schedule mix() once every 64 calls to add().

Rules (a) and (c) no longer need to be coupled. It's still important to
have _some_ value in (c), so that we don't "over-saturate" the fast
pool, but the once per second we get from rule (b) is a plenty enough
baseline. So, by increasing the 64 in rule (c) to something larger, we
avoid calling queue_work_on() as frequently during irq storms.

This commit changes that 64 in rule (c) to be 1024, which means we
schedule mix() 16 times less often. And it does *not* need to change the
64 in rule (a).

Fixes: 58340f8e952b ("random: defer fast pool mixing to worker")
Cc: stable@vger.kernel.org
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
23 months agoLinux 5.19-rc3
Linus Torvalds [Sun, 19 Jun 2022 20:06:47 +0000 (15:06 -0500)]
Linux 5.19-rc3

23 months agoMerge tag 'x86-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 19 Jun 2022 14:58:28 +0000 (09:58 -0500)]
Merge tag 'x86-urgent-2022-06-19' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:

 - Make RESERVE_BRK() work again with older binutils. The recent
   'simplification' broke that.

 - Make early #VE handling increment RIP when successful.

 - Make the #VE code consistent vs. the RIP adjustments and add
   comments.

 - Handle load_unaligned_zeropad() across page boundaries correctly in
   #VE when the second page is shared.

* tag 'x86-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tdx: Handle load_unaligned_zeropad() page-cross to a shared page
  x86/tdx: Clarify RIP adjustments in #VE handler
  x86/tdx: Fix early #VE handling
  x86/mm: Fix RESERVE_BRK() for older binutils

23 months agoMerge tag 'objtool-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Jun 2022 14:54:16 +0000 (09:54 -0500)]
Merge tag 'objtool-urgent-2022-06-19' of git://git./linux/kernel/git/tip/tip

Pull build tooling updates from Thomas Gleixner:

 - Remove obsolete CONFIG_X86_SMAP reference from objtool

 - Fix overlapping text section failures in faddr2line for real

 - Remove OBJECT_FILES_NON_STANDARD usage from x86 ftrace and replace it
   with finegrained annotations so objtool can validate that code
   correctly.

* tag 'objtool-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/ftrace: Remove OBJECT_FILES_NON_STANDARD usage
  faddr2line: Fix overlapping text section failures, the sequel
  objtool: Fix obsolete reference to CONFIG_X86_SMAP

23 months agoMerge tag 'sched-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Jun 2022 14:51:00 +0000 (09:51 -0500)]
Merge tag 'sched-urgent-2022-06-19' of git://git./linux/kernel/git/tip/tip

Pull scheduler fix from Thomas Gleixner:
 "A single scheduler fix plugging a race between sched_setscheduler()
  and balance_push().

  sched_setscheduler() spliced the balance callbacks accross a lock
  break which makes it possible for an interleaving schedule() to
  observe an empty list"

* tag 'sched-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Fix balance_push() vs __sched_setscheduler()

23 months agoMerge tag 'locking-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Jun 2022 14:47:41 +0000 (09:47 -0500)]
Merge tag 'locking-urgent-2022-06-19' of git://git./linux/kernel/git/tip/tip

Pull lockdep fix from Thomas Gleixner:
 "A RT fix for lockdep.

  lockdep invokes prandom_u32() to create cookies. This worked until
  prandom_u32() was switched to the real random generator, which takes a
  spinlock for extraction, which does not work on RT when invoked from
  atomic contexts.

  lockdep has no requirement for real random numbers and it turns out
  sched_clock() is good enough to create the cookie. That works
  everywhere and is faster"

* tag 'locking-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/lockdep: Use sched_clock() for random numbers

23 months agoMerge tag 'irq-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 19 Jun 2022 14:45:16 +0000 (09:45 -0500)]
Merge tag 'irq-urgent-2022-06-19' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "A set of interrupt subsystem updates:

  Core:

   - Ensure runtime power management for chained interrupts

  Drivers:

   - A collection of OF node refcount fixes

   - Unbreak MIPS uniprocessor builds

   - Fix xilinx interrupt controller Kconfig dependencies

   - Add a missing compatible string to the Uniphier driver"

* tag 'irq-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/loongson-liointc: Use architecture register to get coreid
  irqchip/uniphier-aidet: Add compatible string for NX1 SoC
  dt-bindings: interrupt-controller/uniphier-aidet: Add bindings for NX1 SoC
  irqchip/realtek-rtl: Fix refcount leak in map_interrupts
  irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions
  irqchip/gic-v3: Fix error handling in gic_populate_ppi_partitions
  irqchip/apple-aic: Fix refcount leak in aic_of_ic_init
  irqchip/apple-aic: Fix refcount leak in build_fiq_affinity
  irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
  irqchip/xilinx: Remove microblaze+zynq dependency
  genirq: PM: Use runtime PM for chained interrupts

23 months agotools headers UAPI: Sync linux/prctl.h with the kernel sources
Arnaldo Carvalho de Melo [Thu, 11 Feb 2021 15:50:52 +0000 (12:50 -0300)]
tools headers UAPI: Sync linux/prctl.h with the kernel sources

To pick the changes in:

  9e4ab6c891094720 ("arm64/sme: Implement vector length configuration prctl()s")

That don't result in any changes in tooling:

  $ tools/perf/trace/beauty/prctl_option.sh > before
  $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h
  $ tools/perf/trace/beauty/prctl_option.sh > after
  $ diff -u before after
  $

Just silences this perf tools build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h'
  diff -u tools/include/uapi/linux/prctl.h include/uapi/linux/prctl.h

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Link: http://lore.kernel.org/lkml/Yq81we+XFOqlBWyu@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agoMerge tag 'char-misc-5.19-rc3-take2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Jun 2022 14:37:29 +0000 (09:37 -0500)]
Merge tag 'char-misc-5.19-rc3-take2' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes for real from Greg KH:
 "Let's tag the proper branch this time...

  Here are some small char/misc driver fixes for 5.19-rc3 that resolve
  some reported issues.

  They include:

   - mei driver fixes

   - comedi driver fix

   - rtsx build warning fix

   - fsl-mc-bus driver fix

  All of these have been in linux-next for a while with no reported
  issues"

This is what the merge in commit f0ec9c65a8d6 _should_ have merged, but
Greg fat-fingered the pull request and I got some small changes from
linux-next instead there. Credit to Nathan Chancellor for eagle-eyes.

Link: https://lore.kernel.org/all/Yqywy+Md2AfGDu8v@dev-arch.thelio-3990X/
* tag 'char-misc-5.19-rc3-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  bus: fsl-mc-bus: fix KASAN use-after-free in fsl_mc_bus_remove()
  mei: me: add raptor lake point S DID
  mei: hbm: drop capability response on early shutdown
  mei: me: set internal pg flag to off on hardware reset
  misc: rtsx: Fix clang -Wsometimes-uninitialized in rts5261_init_from_hw()
  comedi: vmk80xx: fix expression for tx buffer size

23 months agoMerge tag 'i2c-for-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sun, 19 Jun 2022 14:35:09 +0000 (09:35 -0500)]
Merge tag 'i2c-for-5.19-rc3' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "MAINTAINERS rectifications and a few minor driver fixes"

* tag 'i2c-for-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: mediatek: Fix an error handling path in mtk_i2c_probe()
  i2c: designware: Use standard optional ref clock implementation
  MAINTAINERS: core DT include belongs to core
  MAINTAINERS: add include/dt-bindings/i2c to I2C SUBSYSTEM HOST DRIVERS
  i2c: npcm7xx: Add check for platform_driver_register
  MAINTAINERS: Update Synopsys DesignWare I2C to Supported

23 months agoMerge tag 'xfs-5.19-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Sun, 19 Jun 2022 14:24:49 +0000 (09:24 -0500)]
Merge tag 'xfs-5.19-fixes-1' of git://git./fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:
 "There's not a whole lot this time around (I'm still on vacation) but
  here are some important fixes for new features merged in -rc1:

   - Fix a bug where inode flag changes would accidentally drop nrext64

   - Fix a race condition when toggling LARP mode"

* tag 'xfs-5.19-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: preserve DIFLAG2_NREXT64 when setting other inode attributes
  xfs: fix variable state usage
  xfs: fix TOCTOU race involving the new logged xattrs control knob

23 months agoperf metrics: Ensure at least 1 id per metric
Ian Rogers [Sat, 18 Jun 2022 01:39:57 +0000 (18:39 -0700)]
perf metrics: Ensure at least 1 id per metric

We may have no events for a metric evaluated to a constant. In such a
case ensure a tool event is at least evaluated for metric parsing and
displaying.

Fixes: 8586d2744ff3065e ("perf metrics: Don't add all tool events for sharing")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220618013957.999321-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agotools headers arm64: Sync arm64's cputype.h with the kernel sources
Arnaldo Carvalho de Melo [Sat, 9 Apr 2022 14:48:15 +0000 (11:48 -0300)]
tools headers arm64: Sync arm64's cputype.h with the kernel sources

To get the changes in:

  cae889302ebf5a9b ("KVM: arm64: vgic-v3: List M1 Pro/Max as requiring the SEIS workaround")

That addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/arm64/include/asm/cputype.h' differs from latest version at 'arch/arm64/include/asm/cputype.h'
  diff -u tools/arch/arm64/include/asm/cputype.h arch/arm64/include/asm/cputype.h

Cc: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/lkml/Yq8w7p4omYKNwOij@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agotools headers UAPI: Sync x86's asm/kvm.h with the kernel sources
Arnaldo Carvalho de Melo [Fri, 10 Sep 2021 14:46:54 +0000 (11:46 -0300)]
tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources

To pick the changes in:

  f1a9761fbb00639c ("KVM: x86: Allow userspace to opt out of hypercall patching")

That just rebuilds kvm-stat.c on x86, no change in functionality.

This silences these perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h'
  diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h

Cc: Oliver Upton <oupton@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/lkml/Yq8qgiMwRcl9ds+f@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agoperf arm-spe: Don't set data source if it's not a memory operation
Leo Yan [Tue, 17 May 2022 02:03:25 +0000 (02:03 +0000)]
perf arm-spe: Don't set data source if it's not a memory operation

Except for memory load and store operations, ARM SPE records also can
support other operation types, bug when set the data source field the
current code assumes a record is a either load operation or store
operation, this leads to wrongly synthesize memory samples.

This patch strictly checks the record operation type, it only sets data
source only for the operation types ARM_SPE_LD and ARM_SPE_ST,
otherwise, returns zero for data source.  Therefore, we can synthesize
memory samples only when data source is a non-zero value, the function
arm_spe__is_memory_event() is useless and removed.

Fixes: e55ed3423c1bb29f ("perf arm-spe: Synthesize memory event")
Reviewed-by: Ali Saidi <alisaidi@amazon.com>
Reviewed-by: German Gomez <german.gomez@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Ali Saidi <alisaidi@amazon.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: alisaidi@amazon.com
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Forrington <nick.forrington@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Link: http://lore.kernel.org/lkml/20220517020326.18580-5-alisaidi@amazon.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agoperf expr: Allow exponents on floating point values
Ian Rogers [Fri, 27 May 2022 02:06:53 +0000 (19:06 -0700)]
perf expr: Allow exponents on floating point values

Pass the optional exponent component through to strtod that already
supports it. We already have exponents in ScaleUnit and so this adds
uniformity.

Reported-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Reviewed-By: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20220527020653.4160884-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agoperf test topology: Use !strncmp(right platform) to fix guest PPC comparision check
Athira Rajeev [Fri, 10 Jun 2022 13:59:39 +0000 (19:29 +0530)]
perf test topology: Use !strncmp(right platform) to fix guest PPC comparision check

commit cfd7092c31aed728 ("perf test session topology: Fix test to skip
the test in guest environment") added check to skip the testcase if the
socket_id can't be fetched from topology info.

But the condition check uses strncmp which should be changed to !strncmp
and to correctly match platform.

Fix this condition check.

Fixes: cfd7092c31aed728 ("perf test session topology: Fix test to skip the test in guest environment")
Reported-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Link: https://lore.kernel.org/r/20220610135939.63361-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agoperf test: Record only user callchains on the "Check Arm64 callgraphs are complete...
Michael Petlan [Tue, 14 Jun 2022 10:52:07 +0000 (12:52 +0200)]
perf test: Record only user callchains on the "Check Arm64 callgraphs are complete in fp mode" test

The testcase 'Check Arm64 callgraphs are complete in fp mode' wants to
see the following output:

    610 leaf
    62f parent
    648 main

However, without excluding kernel callchains, the output might look like:

ffffc2ff40ef1b5c arch_local_irq_enable
ffffc2ff419d032c __schedule
ffffc2ff419d06c0 schedule
ffffc2ff40e4da30 do_notify_resume
ffffc2ff40e421b0 work_pending
             610 leaf
             62f parent
             648 main

Adding '--user-callchains' leaves only the wanted symbols in the chain.

Fixes: cd6382d82752737e ("perf test arm64: Test unwinding using fame-pointer (fp) mode")
Suggested-by: German Gomez <german.gomez@arm.com>
Reviewed-by: German Gomez <german.gomez@arm.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220614105207.26223-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agoperf beauty: Update copy of linux/socket.h with the kernel sources
Arnaldo Carvalho de Melo [Sat, 19 Jun 2021 13:09:08 +0000 (10:09 -0300)]
perf beauty: Update copy of linux/socket.h with the kernel sources

To pick the changes in:

  f94fd25cb0aaf77f ("tcp: pass back data left in socket after receive")

That don't result in any changes in the tables generated from that
header.

This silences this perf build warning:

  Warning: Kernel ABI header at 'tools/perf/trace/beauty/include/linux/socket.h' differs from latest version at 'include/linux/socket.h'
  diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h

Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/all/YqORj9d58AiGYl8b@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agoperf test: Fix variable length array undefined behavior in bp_account
Ian Rogers [Fri, 10 Jun 2022 18:02:47 +0000 (11:02 -0700)]
perf test: Fix variable length array undefined behavior in bp_account

Fix:

  tests/bp_account.c:154:9: runtime error: variable length array bound evaluates to non-positive value 0

by switching from a variable length to an allocated array.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220610180247.444798-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agolibperf evsel: Open shouldn't leak fd on failure
Ian Rogers [Thu, 9 Jun 2022 05:23:52 +0000 (22:23 -0700)]
libperf evsel: Open shouldn't leak fd on failure

If perf_event_open() fails the fd is opened but it is only freed by
closing (not by delete).

Typically when an open fails you don't call close and so this results in
a memory leak. To avoid this, add a close when open fails.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-By: Kajol Jain <kjain@linux.ibm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220609052355.1300162-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agoperf test: Fix "perf stat CSV output linter" test on s390
Thomas Richter [Fri, 3 Jun 2022 11:30:34 +0000 (13:30 +0200)]
perf test: Fix "perf stat CSV output linter" test on s390

perf test -F 83 ("perf stat CSV output linter") fails on s390.

Reason is the wrong number of fields for certain CPU core/die/socket
related output.

On x84_64 the output of command:

  # ./perf stat -x, -A -a --no-merge true
  CPU0,1.50,msec,cpu-clock,1502781,100.00,1.052,CPUs utilized
  CPU1,1.48,msec,cpu-clock,1476113,100.00,1.034,CPUs utilized
  ...

results in 8 fields with 7 comma separators.

On s390 the output of command:

  #  ./perf stat -x, -A -a --no-merge -- true
  0.95,msec,cpu-clock,949800,100.00,1.060,CPUs utilized
  ...

results in 7 fields with 6 comma separators. Therefore this tests
fails on s390. Similar issues exist for per-die and per-socket output
which is not supported on s390.

I have rewritten the python program to count commas in each output line
into a bash function to achieve the same result. I hope this makes it a
bit easier.

Output before:

  # ./perf test -F 83
  83: perf stat CSV output linter  :
  Checking CSV output: no args [Success]
  Checking CSV output: system wide [Success]
  Checking CSV output: system wide Checking CSV output: \
  system wide no aggregation 6.92,msec,cpu-clock,\
  6918131,100.00,6.972,CPUs utilized
  ...
  RuntimeError: wrong number of fields. expected 7 in \
  6.92,msec,cpu-clock,6918131,100.00,6.972,CPUs utilized

  FAILED!
  #

Output after:

  # ./perf test -F 83
  83: perf stat CSV output linter             :
  Checking CSV output: no args [Success]
  Checking CSV output: system wide [Success]
  Checking CSV output: system wide Checking CSV output:\
  system wide no aggregation [Success]
  Checking CSV output: interval [Success]
  Checking CSV output: event [Success]
  Checking CSV output: per core [Success]
  Checking CSV output: per thread [Success]
  Checking CSV output: per die [Success]
  Checking CSV output: per node [Success]
  Checking CSV output: per socket [Success]
  Ok
  #

Committer notes:

Continues to work on x86_64

  $ perf test lint
   89: perf stat CSV output linter                                     : Ok
  $ perf test -v lint
  Couldn't bump rlimit(MEMLOCK), failures may take place when creating BPF maps, etc
   89: perf stat CSV output linter                                     :
  --- start ---
  test child forked, pid 53133
  Checking CSV output: no args [Success]
  Checking CSV output: system wide [Skip] paranoid and not root
  Checking CSV output: system wide [Skip] paranoid and not root
  Checking CSV output: interval [Success]
  Checking CSV output: event [Success]
  Checking CSV output: per core [Skip] paranoid and not root
  Checking CSV output: per thread [Skip] paranoid and not root
  Checking CSV output: per die [Skip] paranoid and not root
  Checking CSV output: per node [Skip] paranoid and not root
  Checking CSV output: per socket [Skip] paranoid and not root
  test child finished with 0
  ---- end ----
  perf stat CSV output linter: Ok
  $

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Claire Jensen <cjense@google.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: linux390-list@tuxmaker.boeblingen.de.ibm.com
Link: https://lore.kernel.org/r/20220603113034.2009728-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agoperf unwind: Fix uninitialized variable
Ian Rogers [Tue, 7 Jun 2022 00:08:51 +0000 (17:08 -0700)]
perf unwind: Fix uninitialized variable

The 'ret' variable may be uninitialized on error goto paths.

Fixes: dc2cf4ca866f5715 ("perf unwind: Fix segbase for ld.lld linked objects")
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Reviewed-by: Fangrui Song <maskray@google.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)
Cc: Fangrui Song <maskray@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: llvm@lists.linux.dev
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sebastian Ullrich <sebasti@nullri.ch>
Link: https://lore.kernel.org/r/20220607000851.39798-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
23 months agonet: phy: at803x: fix NULL pointer dereference on AR9331 PHY
Oleksij Rempel [Sat, 18 Jun 2022 12:23:33 +0000 (14:23 +0200)]
net: phy: at803x: fix NULL pointer dereference on AR9331 PHY

Latest kernel will explode on the PHY interrupt config, since it depends
now on allocated priv. So, run probe to allocate priv to fix it.

 ar9331_switch ethernet.1:10 lan0 (uninitialized): PHY [!ahb!ethernet@1a000000!mdio!switch@10:00] driver [Qualcomm Atheros AR9331 built-in PHY] (irq=13)
 CPU 0 Unable to handle kernel paging request at virtual address 0000000a, epc == 8050e8a8, ra == 80504b34
         ...
 Call Trace:
 [<8050e8a8>] at803x_config_intr+0x5c/0xd0
 [<80504b34>] phy_request_interrupt+0xa8/0xd0
 [<8050289c>] phylink_bringup_phy+0x2d8/0x3ac
 [<80502b68>] phylink_fwnode_phy_connect+0x118/0x130
 [<8074d8ec>] dsa_slave_create+0x270/0x420
 [<80743b04>] dsa_port_setup+0x12c/0x148
 [<8074580c>] dsa_register_switch+0xaf0/0xcc0
 [<80511344>] ar9331_sw_probe+0x370/0x388
 [<8050cb78>] mdio_probe+0x44/0x70
 [<804df300>] really_probe+0x200/0x424
 [<804df7b4>] __driver_probe_device+0x290/0x298
 [<804df810>] driver_probe_device+0x54/0xe4
 [<804dfd50>] __device_attach_driver+0xe4/0x130
 [<804dcb00>] bus_for_each_drv+0xb4/0xd8
 [<804dfac4>] __device_attach+0x104/0x1a4
 [<804ddd24>] bus_probe_device+0x48/0xc4
 [<804deb44>] deferred_probe_work_func+0xf0/0x10c
 [<800a0ffc>] process_one_work+0x314/0x4d4
 [<800a17fc>] worker_thread+0x2a4/0x354
 [<800a9a54>] kthread+0x134/0x13c
 [<8006306c>] ret_from_kernel_thread+0x14/0x1c

Same Issue would affect some other PHYs (QCA8081, QCA9561), so fix it
too.

Fixes: 3265f4218878 ("net: phy: at803x: add fiber support")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agodrivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c
Wentao_Liang [Sun, 19 Jun 2022 14:14:54 +0000 (22:14 +0800)]
drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c

The pointer vdev points to a memory region adjacent to a net_device
structure ndev, which is a field of hldev. At line 4740, the invocation
to vxge_device_unregister unregisters device hldev, and it also releases
the memory region pointed by vdev->bar0. At line 4743, the freed memory
region is referenced (i.e., iounmap(vdev->bar0)), resulting in a
use-after-free vulnerability. We can fix the bug by calling iounmap
before vxge_device_unregister.

4721.      static void vxge_remove(struct pci_dev *pdev)
4722.      {
4723.             struct __vxge_hw_device *hldev;
4724.             struct vxgedev *vdev;

4731.             vdev = netdev_priv(hldev->ndev);

4740.             vxge_device_unregister(hldev);
4741.             /* Do not call pci_disable_sriov here, as it
will break child devices */
4742.             vxge_hw_device_terminate(hldev);
4743.             iounmap(vdev->bar0);

4749              vxge_debug_init(vdev->level_trace, "%s:%d
Device unregistered",
4750                            __func__, __LINE__);
4751              vxge_debug_entryexit(vdev->level_trace, "%s:%d
Exiting...", __func__,
4752                          __LINE__);
4753.      }

This is the screenshot when the vulnerability is triggered by using
KASAN. We can see that there is a use-after-free reported by KASAN.

/***************************start**************************/

root@kernel:~# echo 1 > /sys/bus/pci/devices/0000:00:03.0/remove
[  178.296316] vxge_remove
[  182.057081]
 ==================================================================
[  182.057548] BUG: KASAN: use-after-free in vxge_remove+0xe0/0x15c
[  182.057760] Read of size 8 at addr ffff888006c76598 by task bash/119
[  182.057983]
[  182.058747] CPU: 0 PID: 119 Comm: bash Not tainted 5.18.0 #5
[  182.058919] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[  182.059463] Call Trace:
[  182.059726]  <TASK>
[  182.060017]  dump_stack_lvl+0x34/0x44
[  182.060316]  print_report.cold+0xb2/0x6b7
[  182.060401]  ? kfree+0x89/0x290
[  182.060478]  ? vxge_remove+0xe0/0x15c
[  182.060545]  kasan_report+0xa9/0x120
[  182.060629]  ? vxge_remove+0xe0/0x15c
[  182.060706]  vxge_remove+0xe0/0x15c
[  182.060793]  pci_device_remove+0x5d/0xe0
[  182.060968]  device_release_driver_internal+0xf1/0x180
[  182.061063]  pci_stop_bus_device+0xae/0xe0
[  182.061150]  pci_stop_and_remove_bus_device_locked+0x11/0x20
[  182.061236]  remove_store+0xc6/0xe0
[  182.061297]  ? subordinate_bus_number_show+0xc0/0xc0
[  182.061359]  ? __mutex_lock_slowpath+0x10/0x10
[  182.061438]  ? sysfs_kf_write+0x6d/0xa0
[  182.061525]  kernfs_fop_write_iter+0x1b0/0x260
[  182.061610]  ? sysfs_kf_bin_read+0xf0/0xf0
[  182.061695]  new_sync_write+0x209/0x310
[  182.061789]  ? new_sync_read+0x310/0x310
[  182.061865]  ? cgroup_rstat_updated+0x5c/0x170
[  182.061937]  ? preempt_count_sub+0xf/0xb0
[  182.061995]  ? pick_next_entity+0x13a/0x220
[  182.062063]  ? __inode_security_revalidate+0x44/0x80
[  182.062155]  ? security_file_permission+0x46/0x2a0
[  182.062230]  vfs_write+0x33f/0x3e0
[  182.062303]  ksys_write+0xb4/0x150
[  182.062369]  ? __ia32_sys_read+0x40/0x40
[  182.062451]  do_syscall_64+0x3b/0x90
[  182.062531]  entry_SYSCALL_64_after_hwframe+0x46/0xb0
[  182.062894] RIP: 0033:0x7f3f37d17274
[  182.063558] Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b3 0f 1f
80 00 00 00 00 48 8d 05 89 54 0d 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f
05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 41 54 49 89 d4 55 48 89 f5 53
[  182.063797] RSP: 002b:00007ffd5ba9e178 EFLAGS: 00000246
ORIG_RAX: 0000000000000001
[  182.064117] RAX: ffffffffffffffda RBX: 0000000000000002
RCX: 00007f3f37d17274
[  182.064219] RDX: 0000000000000002 RSI: 000055bbec327180
RDI: 0000000000000001
[  182.064315] RBP: 000055bbec327180 R08: 000000000000000a
R09: 00007f3f37de7cf0
[  182.064414] R10: 000000000000000a R11: 0000000000000246
R12: 00007f3f37de8760
[  182.064513] R13: 0000000000000002 R14: 00007f3f37de3760
R15: 0000000000000002
[  182.064691]  </TASK>
[  182.064916]
[  182.065224] The buggy address belongs to the physical page:
[  182.065804] page:00000000ef31e4f4 refcount:0 mapcount:0
mapping:0000000000000000 index:0x0 pfn:0x6c76
[  182.067419] flags: 0x100000000000000(node=0|zone=1)
[  182.068997] raw: 0100000000000000 0000000000000000
ffffea00001b1d88 0000000000000000
[  182.069118] raw: 0000000000000000 0000000000000000
00000000ffffffff 0000000000000000
[  182.069294] page dumped because: kasan: bad access detected
[  182.069331]
[  182.069360] Memory state around the buggy address:
[  182.070006]  ffff888006c76480: ff ff ff ff ff ff ff ff ff ff ff
 ff ff ff ff ff
[  182.070136]  ffff888006c76500: ff ff ff ff ff ff ff ff ff ff ff
 ff ff ff ff ff
[  182.070230] >ffff888006c76580: ff ff ff ff ff ff ff ff ff ff ff
 ff ff ff ff ff
[  182.070305]                             ^
[  182.070456]  ffff888006c76600: ff ff ff ff ff ff ff ff ff ff ff
 ff ff ff ff ff
[  182.070505]  ffff888006c76680: ff ff ff ff ff ff ff ff ff ff ff
 ff ff ff ff ff
[  182.070606]
==================================================================
[  182.071374] Disabling lock debugging due to kernel taint

/*****************************end*****************************/

After fixing the bug as done in the patch, we can find KASAN do not report
 the bug and the device(00:03.0) has been successfully removed.

/*****************************start***************************/

root@kernel:~# echo 1 > /sys/bus/pci/devices/0000:00:03.0/remove
root@kernel:~#

/******************************end****************************/

Signed-off-by: Wentao_Liang <Wentao_Liang_g@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoMerge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 19 Jun 2022 02:51:12 +0000 (21:51 -0500)]
Merge tag 'ext4_for_linus_stable' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Fix a variety of bugs, many of which were found by folks using fuzzing
  or error injection.

  Also fix up how test_dummy_encryption mount option is handled for the
  new mount API.

  Finally, fix/cleanup a number of comments and ext4 Documentation
  files"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix a doubled word "need" in a comment
  ext4: add reserved GDT blocks check
  ext4: make variable "count" signed
  ext4: correct the judgment of BUG in ext4_mb_normalize_request
  ext4: fix bug_on ext4_mb_use_inode_pa
  ext4: fix up test_dummy_encryption handling for new mount API
  ext4: use kmemdup() to replace kmalloc + memcpy
  ext4: fix super block checksum incorrect after mount
  ext4: improve write performance with disabled delalloc
  ext4: fix warning when submitting superblock in ext4_commit_super()
  ext4, doc: remove unnecessary escaping
  ext4: fix incorrect comment in ext4_bio_write_page()
  fs: fix jbd2_journal_try_to_free_buffers() kernel-doc comment