all arch: remove system call sys_sysctl
authorXiaoming Ni <nixiaoming@huawei.com>
Sat, 15 Aug 2020 00:31:07 +0000 (17:31 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 15 Aug 2020 02:56:56 +0000 (19:56 -0700)
Since commit 61a47c1ad3a4dc ("sysctl: Remove the sysctl system call"),
sys_sysctl is actually unavailable: any input can only return an error.

We have been warning about people using the sysctl system call for years
and believe there are no more users.  Even if there are users of this
interface if they have not complained or fixed their code by now they
probably are not going to, so there is no point in warning them any
longer.

So completely remove sys_sysctl on all architectures.

[nixiaoming@huawei.com: s390: fix build error for sys_call_table_emu]
Link: http://lkml.kernel.org/r/20200618141426.16884-1-nixiaoming@huawei.com
Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Will Deacon <will@kernel.org> [arm/arm64]
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Bin Meng <bin.meng@windriver.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: chenzefeng <chenzefeng2@huawei.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Christian Brauner <christian@brauner.io>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Diego Elio Pettenò <flameeyes@flameeyes.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kars de Jong <jongk@linux-m68k.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Marco Elver <elver@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Nick Piggin <npiggin@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Paul Burton <paulburton@kernel.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: Sargun Dhillon <sargun@sargun.me>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Sven Schnelle <svens@stackframe.org>
Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Zhou Yanjie <zhouyanjie@wanyeetech.com>
Link: http://lkml.kernel.org/r/20200616030734.87257-1-nixiaoming@huawei.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
52 files changed:
arch/alpha/kernel/syscalls/syscall.tbl
arch/arm/configs/am200epdkit_defconfig
arch/arm/tools/syscall.tbl
arch/arm64/include/asm/unistd32.h
arch/ia64/kernel/syscalls/syscall.tbl
arch/m68k/kernel/syscalls/syscall.tbl
arch/microblaze/kernel/syscalls/syscall.tbl
arch/mips/configs/cu1000-neo_defconfig
arch/mips/kernel/syscalls/syscall_n32.tbl
arch/mips/kernel/syscalls/syscall_n64.tbl
arch/mips/kernel/syscalls/syscall_o32.tbl
arch/parisc/kernel/syscalls/syscall.tbl
arch/powerpc/kernel/syscalls/syscall.tbl
arch/s390/kernel/syscalls/syscall.tbl
arch/sh/configs/dreamcast_defconfig
arch/sh/configs/espt_defconfig
arch/sh/configs/hp6xx_defconfig
arch/sh/configs/landisk_defconfig
arch/sh/configs/lboxre2_defconfig
arch/sh/configs/microdev_defconfig
arch/sh/configs/migor_defconfig
arch/sh/configs/r7780mp_defconfig
arch/sh/configs/r7785rp_defconfig
arch/sh/configs/rts7751r2d1_defconfig
arch/sh/configs/rts7751r2dplus_defconfig
arch/sh/configs/se7206_defconfig
arch/sh/configs/se7343_defconfig
arch/sh/configs/se7619_defconfig
arch/sh/configs/se7705_defconfig
arch/sh/configs/se7750_defconfig
arch/sh/configs/se7751_defconfig
arch/sh/configs/secureedge5410_defconfig
arch/sh/configs/sh03_defconfig
arch/sh/configs/sh7710voipgw_defconfig
arch/sh/configs/sh7757lcr_defconfig
arch/sh/configs/sh7763rdp_defconfig
arch/sh/configs/shmin_defconfig
arch/sh/configs/titan_defconfig
arch/sh/kernel/syscalls/syscall.tbl
arch/sparc/kernel/syscalls/syscall.tbl
arch/x86/entry/syscalls/syscall_32.tbl
arch/x86/entry/syscalls/syscall_64.tbl
arch/xtensa/kernel/syscalls/syscall.tbl
include/linux/compat.h
include/linux/syscalls.h
include/linux/sysctl.h
kernel/Makefile
kernel/sys_ni.c
kernel/sysctl_binary.c [deleted file]
tools/perf/arch/powerpc/entry/syscalls/syscall.tbl
tools/perf/arch/s390/entry/syscalls/syscall.tbl
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl

index a28fb21..ec8bed9 100644 (file)
 316    common  mlockall                        sys_mlockall
 317    common  munlockall                      sys_munlockall
 318    common  sysinfo                         sys_sysinfo
-319    common  _sysctl                         sys_sysctl
+319    common  _sysctl                         sys_ni_syscall
 # 320 was sys_idle
 321    common  oldumount                       sys_oldumount
 322    common  swapon                          sys_swapon
index f56ac39..4e49d6c 100644 (file)
@@ -3,7 +3,6 @@ CONFIG_LOCALVERSION="gum"
 CONFIG_SYSVIPC=y
 CONFIG_SYSFS_DEPRECATED_V2=y
 CONFIG_EXPERT=y
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_EPOLL is not set
 # CONFIG_SHMEM is not set
 # CONFIG_VM_EVENT_COUNTERS is not set
index 7e8ee4a..171077c 100644 (file)
 146    common  writev                  sys_writev
 147    common  getsid                  sys_getsid
 148    common  fdatasync               sys_fdatasync
-149    common  _sysctl                 sys_sysctl
+149    common  _sysctl                 sys_ni_syscall
 150    common  mlock                   sys_mlock
 151    common  munlock                 sys_munlock
 152    common  mlockall                sys_mlockall
index 17e81bd..734860a 100644 (file)
@@ -308,8 +308,8 @@ __SYSCALL(__NR_writev, compat_sys_writev)
 __SYSCALL(__NR_getsid, sys_getsid)
 #define __NR_fdatasync 148
 __SYSCALL(__NR_fdatasync, sys_fdatasync)
-#define __NR__sysctl 149
-__SYSCALL(__NR__sysctl, compat_sys_sysctl)
+                       /* 149 was sys_sysctl */
+__SYSCALL(149, sys_ni_syscall)
 #define __NR_mlock 150
 __SYSCALL(__NR_mlock, sys_mlock)
 #define __NR_munlock 151
index ced9c83..f52a41f 100644 (file)
 123    common  writev                          sys_writev
 124    common  pread64                         sys_pread64
 125    common  pwrite64                        sys_pwrite64
-126    common  _sysctl                         sys_sysctl
+126    common  _sysctl                         sys_ni_syscall
 127    common  mmap                            sys_mmap
 128    common  munmap                          sys_munmap
 129    common  mlock                           sys_mlock
index 1a4822d..81fc799 100644 (file)
 146    common  writev                          sys_writev
 147    common  getsid                          sys_getsid
 148    common  fdatasync                       sys_fdatasync
-149    common  _sysctl                         sys_sysctl
+149    common  _sysctl                         sys_ni_syscall
 150    common  mlock                           sys_mlock
 151    common  munlock                         sys_munlock
 152    common  mlockall                        sys_mlockall
index a3f4be8..b4e2639 100644 (file)
 146    common  writev                          sys_writev
 147    common  getsid                          sys_getsid
 148    common  fdatasync                       sys_fdatasync
-149    common  _sysctl                         sys_sysctl
+149    common  _sysctl                         sys_ni_syscall
 150    common  mlock                           sys_mlock
 151    common  munlock                         sys_munlock
 152    common  mlockall                        sys_mlockall
index 6b471cd..e924c81 100644 (file)
@@ -17,7 +17,6 @@ CONFIG_CGROUP_CPUACCT=y
 CONFIG_NAMESPACES=y
 CONFIG_USER_NS=y
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_SYSCTL_SYSCALL=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
 # CONFIG_VM_EVENT_COUNTERS is not set
index 6b4ee92..f9df9ed 100644 (file)
 149    n32     munlockall                      sys_munlockall
 150    n32     vhangup                         sys_vhangup
 151    n32     pivot_root                      sys_pivot_root
-152    n32     _sysctl                         compat_sys_sysctl
+152    n32     _sysctl                         sys_ni_syscall
 153    n32     prctl                           sys_prctl
 154    n32     adjtimex                        sys_adjtimex_time32
 155    n32     setrlimit                       compat_sys_setrlimit
index 391acbf..557f995 100644 (file)
 149    n64     munlockall                      sys_munlockall
 150    n64     vhangup                         sys_vhangup
 151    n64     pivot_root                      sys_pivot_root
-152    n64     _sysctl                         sys_sysctl
+152    n64     _sysctl                         sys_ni_syscall
 153    n64     prctl                           sys_prctl
 154    n64     adjtimex                        sys_adjtimex
 155    n64     setrlimit                       sys_setrlimit
index 5727c51..195b43c 100644 (file)
 150    o32     unused150                       sys_ni_syscall
 151    o32     getsid                          sys_getsid
 152    o32     fdatasync                       sys_fdatasync
-153    o32     _sysctl                         sys_sysctl                      compat_sys_sysctl
+153    o32     _sysctl                         sys_ni_syscall
 154    o32     mlock                           sys_mlock
 155    o32     munlock                         sys_munlock
 156    o32     mlockall                        sys_mlockall
index 292baab..def64d2 100644 (file)
 146    common  writev                  sys_writev                      compat_sys_writev
 147    common  getsid                  sys_getsid
 148    common  fdatasync               sys_fdatasync
-149    common  _sysctl                 sys_sysctl                      compat_sys_sysctl
+149    common  _sysctl                 sys_ni_syscall
 150    common  mlock                   sys_mlock
 151    common  munlock                 sys_munlock
 152    common  mlockall                sys_mlockall
index be9f745..c2d737f 100644 (file)
 146    common  writev                          sys_writev                      compat_sys_writev
 147    common  getsid                          sys_getsid
 148    common  fdatasync                       sys_fdatasync
-149    nospu   _sysctl                         sys_sysctl                      compat_sys_sysctl
+149    nospu   _sysctl                         sys_ni_syscall
 150    common  mlock                           sys_mlock
 151    common  munlock                         sys_munlock
 152    common  mlockall                        sys_mlockall
index f1fda43..10456bc 100644 (file)
 146  common    writev                  sys_writev                      compat_sys_writev
 147  common    getsid                  sys_getsid                      sys_getsid
 148  common    fdatasync               sys_fdatasync                   sys_fdatasync
-149  common    _sysctl                 sys_sysctl                      compat_sys_sysctl
+149  common    _sysctl                 -                               -
 150  common    mlock                   sys_mlock                       sys_mlock
 151  common    munlock                 sys_munlock                     sys_munlock
 152  common    mlockall                sys_mlockall                    sys_mlockall
index ae067e0..6a82c7b 100644 (file)
@@ -1,7 +1,6 @@
 CONFIG_SYSVIPC=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_MODULES=y
index a5b865a..9a988c3 100644 (file)
@@ -5,7 +5,6 @@ CONFIG_LOG_BUF_SHIFT=14
 CONFIG_NAMESPACES=y
 CONFIG_UTS_NS=y
 CONFIG_IPC_NS=y
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
index a92db66..70e6605 100644 (file)
@@ -3,7 +3,6 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_CPU_SUBTYPE_SH7709=y
index 567af75..ba6ec04 100644 (file)
@@ -1,6 +1,5 @@
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_KALLSYMS_EXTRA_PASS=y
 CONFIG_SLAB=y
 CONFIG_MODULES=y
index 10f6d37..05e4ac6 100644 (file)
@@ -1,6 +1,5 @@
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_KALLSYMS_EXTRA_PASS=y
 CONFIG_SLAB=y
 CONFIG_MODULES=y
index ed84d13..c65667d 100644 (file)
@@ -2,7 +2,6 @@ CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_CPU_SUBTYPE_SH4_202=y
index 37e9521..a24cf8c 100644 (file)
@@ -4,7 +4,6 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
index c97ec60..e922659 100644 (file)
@@ -3,7 +3,6 @@ CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_FUTEX is not set
 # CONFIG_EPOLL is not set
 CONFIG_SLAB=y
index 55fce65..5978866 100644 (file)
@@ -7,7 +7,6 @@ CONFIG_RCU_TRACE=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
index 6a3cfe0..fc9c221 100644 (file)
@@ -1,7 +1,6 @@
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
index 2b3d7d2..ff3fd67 100644 (file)
@@ -1,7 +1,6 @@
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
index 21a43f1..ff5bb44 100644 (file)
@@ -18,7 +18,6 @@ CONFIG_USER_NS=y
 CONFIG_PID_NS=y
 CONFIG_BLK_DEV_INITRD=y
 # CONFIG_UID16 is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_KALLSYMS_ALL=y
 # CONFIG_ELF_CORE is not set
 # CONFIG_COMPAT_BRK is not set
index 4e794e7..5d6c193 100644 (file)
@@ -2,7 +2,6 @@
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_FUTEX is not set
 # CONFIG_EPOLL is not set
 # CONFIG_SHMEM is not set
index 3264415..71a672c 100644 (file)
@@ -1,7 +1,6 @@
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_UID16 is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_KALLSYMS is not set
 # CONFIG_HOTPLUG is not set
 # CONFIG_ELF_CORE is not set
index 4496b94..ed00a6e 100644 (file)
@@ -2,7 +2,6 @@
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_KALLSYMS is not set
 # CONFIG_HOTPLUG is not set
 CONFIG_SLAB=y
index b23f675..3f1c137 100644 (file)
@@ -5,7 +5,6 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_HOTPLUG is not set
 CONFIG_SLAB=y
 CONFIG_MODULES=y
index 1623436..4a02406 100644 (file)
@@ -3,7 +3,6 @@ CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_HOTPLUG is not set
 CONFIG_SLAB=y
 CONFIG_MODULES=y
index 360592d..8422599 100644 (file)
@@ -1,7 +1,6 @@
 # CONFIG_SWAP is not set
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_HOTPLUG is not set
 CONFIG_SLAB=y
 # CONFIG_BLK_DEV_BSG is not set
index 87db9a8..f0073ed 100644 (file)
@@ -3,7 +3,6 @@ CONFIG_POSIX_MQUEUE=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=m
index 0842691..0d81477 100644 (file)
@@ -2,7 +2,6 @@
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_FUTEX is not set
 # CONFIG_EPOLL is not set
 # CONFIG_SHMEM is not set
index d0933a9..a2700ab 100644 (file)
@@ -8,7 +8,6 @@ CONFIG_TASK_XACCT=y
 CONFIG_TASK_IO_ACCOUNTING=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_KALLSYMS_ALL=y
 CONFIG_SLAB=y
 CONFIG_MODULES=y
index d0a0aa7..26c5fd0 100644 (file)
@@ -5,7 +5,6 @@ CONFIG_LOG_BUF_SHIFT=14
 CONFIG_NAMESPACES=y
 CONFIG_UTS_NS=y
 CONFIG_IPC_NS=y
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
index a27b129..c0b6f40 100644 (file)
@@ -1,7 +1,6 @@
 # CONFIG_SWAP is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_UID16 is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_KALLSYMS is not set
 # CONFIG_HOTPLUG is not set
 # CONFIG_BUG is not set
index 4ec961a..ba887f1 100644 (file)
@@ -6,7 +6,6 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
 CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-# CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_SLAB=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
index 96848db..ae0a00b 100644 (file)
 146    common  writev                          sys_writev
 147    common  getsid                          sys_getsid
 148    common  fdatasync                       sys_fdatasync
-149    common  _sysctl                         sys_sysctl
+149    common  _sysctl                         sys_ni_syscall
 150    common  mlock                           sys_mlock
 151    common  munlock                         sys_munlock
 152    common  mlockall                        sys_mlockall
index 46024e8..4af114e 100644 (file)
 249    64      nanosleep               sys_nanosleep
 250    32      mremap                  sys_mremap
 250    64      mremap                  sys_64_mremap
-251    common  _sysctl                 sys_sysctl                      compat_sys_sysctl
+251    common  _sysctl                 sys_ni_syscall
 252    common  getsid                  sys_getsid
 253    common  fdatasync               sys_fdatasync
 254    32      nfsservctl              sys_ni_syscall                  sys_nis_syscall
index e31a752..9d11028 100644 (file)
 146    i386    writev                  sys_writev                      compat_sys_writev
 147    i386    getsid                  sys_getsid
 148    i386    fdatasync               sys_fdatasync
-149    i386    _sysctl                 sys_sysctl                      compat_sys_sysctl
+149    i386    _sysctl                 sys_ni_syscall
 150    i386    mlock                   sys_mlock
 151    i386    munlock                 sys_munlock
 152    i386    mlockall                sys_mlockall
index 9d82078..f30d6ae 100644 (file)
 153    common  vhangup                 sys_vhangup
 154    common  modify_ldt              sys_modify_ldt
 155    common  pivot_root              sys_pivot_root
-156    64      _sysctl                 sys_sysctl
+156    64      _sysctl                 sys_ni_syscall
 157    common  prctl                   sys_prctl
 158    common  arch_prctl              sys_arch_prctl
 159    common  adjtimex                sys_adjtimex
index d216ccb..6276e3c 100644 (file)
 204    common  quotactl                        sys_quotactl
 # 205 was old nfsservctl
 205    common  nfsservctl                      sys_ni_syscall
-206    common  _sysctl                         sys_sysctl
+206    common  _sysctl                         sys_ni_syscall
 207    common  bdflush                         sys_bdflush
 208    common  uname                           sys_newuname
 209    common  sysinfo                         sys_sysinfo
index c4255d8..d38c4d7 100644 (file)
@@ -851,7 +851,6 @@ asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
 asmlinkage long compat_sys_recv(int fd, void __user *buf, compat_size_t len,
                                unsigned flags);
-asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
 
 /* obsolete: fs/readdir.c */
 asmlinkage long compat_sys_old_readdir(unsigned int fd,
index dc2b827..75ac7f8 100644 (file)
@@ -47,7 +47,6 @@ struct stat64;
 struct statfs;
 struct statfs64;
 struct statx;
-struct __sysctl_args;
 struct sysinfo;
 struct timespec;
 struct __kernel_old_timeval;
@@ -1117,7 +1116,6 @@ asmlinkage long sys_send(int, void __user *, size_t, unsigned);
 asmlinkage long sys_bdflush(int func, long data);
 asmlinkage long sys_oldumount(char __user *name);
 asmlinkage long sys_uselib(const char __user *library);
-asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
 asmlinkage long sys_sysfs(int option,
                                unsigned long arg1, unsigned long arg2);
 asmlinkage long sys_fork(void);
index 50bb7f3..51298a4 100644 (file)
@@ -74,15 +74,13 @@ int proc_do_static_key(struct ctl_table *table, int write, void *buffer,
  * sysctl names can be mirrored automatically under /proc/sys.  The
  * procname supplied controls /proc naming.
  *
- * The table's mode will be honoured both for sys_sysctl(2) and
- * proc-fs access.
+ * The table's mode will be honoured for proc-fs access.
  *
  * Leaf nodes in the sysctl tree will be represented by a single file
  * under /proc; non-leaf nodes will be represented by directories.  A
  * null procname disables /proc mirroring at this node.
  *
- * sysctl(2) can automatically manage read and write requests through
- * the sysctl table.  The data and maxlen fields of the ctl_table
+ * The data and maxlen fields of the ctl_table
  * struct enable minimal validation of the values being written to be
  * performed, and the mode field allows minimal authentication.
  * 
index b3da548..9a20016 100644 (file)
@@ -5,7 +5,7 @@
 
 obj-y     = fork.o exec_domain.o panic.o \
            cpu.o exit.o softirq.o resource.o \
-           sysctl.o sysctl_binary.o capability.o ptrace.o user.o \
+           sysctl.o capability.o ptrace.o user.o \
            signal.o sys.o umh.o workqueue.o pid.o task_work.o \
            extable.o params.o \
            kthread.o sys_ni.o nsproxy.o \
index 3b69a56..4d59775 100644 (file)
@@ -364,7 +364,6 @@ COND_SYSCALL(socketcall);
 COND_SYSCALL_COMPAT(socketcall);
 
 /* compat syscalls for arm64, x86, ... */
-COND_SYSCALL_COMPAT(sysctl);
 COND_SYSCALL_COMPAT(fanotify_mark);
 
 /* x86 */
diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
deleted file mode 100644 (file)
index 7d550cc..0000000
+++ /dev/null
@@ -1,171 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/stat.h>
-#include <linux/sysctl.h>
-#include "../fs/xfs/xfs_sysctl.h"
-#include <linux/sunrpc/debug.h>
-#include <linux/string.h>
-#include <linux/syscalls.h>
-#include <linux/namei.h>
-#include <linux/mount.h>
-#include <linux/fs.h>
-#include <linux/nsproxy.h>
-#include <linux/pid_namespace.h>
-#include <linux/file.h>
-#include <linux/ctype.h>
-#include <linux/netdevice.h>
-#include <linux/kernel.h>
-#include <linux/uuid.h>
-#include <linux/slab.h>
-#include <linux/compat.h>
-
-static ssize_t binary_sysctl(const int *name, int nlen,
-       void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
-{
-       return -ENOSYS;
-}
-
-static void deprecated_sysctl_warning(const int *name, int nlen)
-{
-       int i;
-
-       /*
-        * CTL_KERN/KERN_VERSION is used by older glibc and cannot
-        * ever go away.
-        */
-       if (nlen >= 2 && name[0] == CTL_KERN && name[1] == KERN_VERSION)
-               return;
-
-       if (printk_ratelimit()) {
-               printk(KERN_INFO
-                       "warning: process `%s' used the deprecated sysctl "
-                       "system call with ", current->comm);
-               for (i = 0; i < nlen; i++)
-                       printk(KERN_CONT "%d.", name[i]);
-               printk(KERN_CONT "\n");
-       }
-       return;
-}
-
-#define WARN_ONCE_HASH_BITS 8
-#define WARN_ONCE_HASH_SIZE (1<<WARN_ONCE_HASH_BITS)
-
-static DECLARE_BITMAP(warn_once_bitmap, WARN_ONCE_HASH_SIZE);
-
-#define FNV32_OFFSET 2166136261U
-#define FNV32_PRIME 0x01000193
-
-/*
- * Print each legacy sysctl (approximately) only once.
- * To avoid making the tables non-const use a external
- * hash-table instead.
- * Worst case hash collision: 6, but very rarely.
- * NOTE! We don't use the SMP-safe bit tests. We simply
- * don't care enough.
- */
-static void warn_on_bintable(const int *name, int nlen)
-{
-       int i;
-       u32 hash = FNV32_OFFSET;
-
-       for (i = 0; i < nlen; i++)
-               hash = (hash ^ name[i]) * FNV32_PRIME;
-       hash %= WARN_ONCE_HASH_SIZE;
-       if (__test_and_set_bit(hash, warn_once_bitmap))
-               return;
-       deprecated_sysctl_warning(name, nlen);
-}
-
-static ssize_t do_sysctl(int __user *args_name, int nlen,
-       void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
-{
-       int name[CTL_MAXNAME];
-       int i;
-
-       /* Check args->nlen. */
-       if (nlen < 0 || nlen > CTL_MAXNAME)
-               return -ENOTDIR;
-       /* Read in the sysctl name for simplicity */
-       for (i = 0; i < nlen; i++)
-               if (get_user(name[i], args_name + i))
-                       return -EFAULT;
-
-       warn_on_bintable(name, nlen);
-
-       return binary_sysctl(name, nlen, oldval, oldlen, newval, newlen);
-}
-
-SYSCALL_DEFINE1(sysctl, struct __sysctl_args __user *, args)
-{
-       struct __sysctl_args tmp;
-       size_t oldlen = 0;
-       ssize_t result;
-
-       if (copy_from_user(&tmp, args, sizeof(tmp)))
-               return -EFAULT;
-
-       if (tmp.oldval && !tmp.oldlenp)
-               return -EFAULT;
-
-       if (tmp.oldlenp && get_user(oldlen, tmp.oldlenp))
-               return -EFAULT;
-
-       result = do_sysctl(tmp.name, tmp.nlen, tmp.oldval, oldlen,
-                          tmp.newval, tmp.newlen);
-
-       if (result >= 0) {
-               oldlen = result;
-               result = 0;
-       }
-
-       if (tmp.oldlenp && put_user(oldlen, tmp.oldlenp))
-               return -EFAULT;
-
-       return result;
-}
-
-
-#ifdef CONFIG_COMPAT
-
-struct compat_sysctl_args {
-       compat_uptr_t   name;
-       int             nlen;
-       compat_uptr_t   oldval;
-       compat_uptr_t   oldlenp;
-       compat_uptr_t   newval;
-       compat_size_t   newlen;
-       compat_ulong_t  __unused[4];
-};
-
-COMPAT_SYSCALL_DEFINE1(sysctl, struct compat_sysctl_args __user *, args)
-{
-       struct compat_sysctl_args tmp;
-       compat_size_t __user *compat_oldlenp;
-       size_t oldlen = 0;
-       ssize_t result;
-
-       if (copy_from_user(&tmp, args, sizeof(tmp)))
-               return -EFAULT;
-
-       if (tmp.oldval && !tmp.oldlenp)
-               return -EFAULT;
-
-       compat_oldlenp = compat_ptr(tmp.oldlenp);
-       if (compat_oldlenp && get_user(oldlen, compat_oldlenp))
-               return -EFAULT;
-
-       result = do_sysctl(compat_ptr(tmp.name), tmp.nlen,
-                          compat_ptr(tmp.oldval), oldlen,
-                          compat_ptr(tmp.newval), tmp.newlen);
-
-       if (result >= 0) {
-               oldlen = result;
-               result = 0;
-       }
-
-       if (compat_oldlenp && put_user(oldlen, compat_oldlenp))
-               return -EFAULT;
-
-       return result;
-}
-
-#endif /* CONFIG_COMPAT */
index b190f2e..3ca6fe0 100644 (file)
 146    common  writev                          sys_writev                      compat_sys_writev
 147    common  getsid                          sys_getsid
 148    common  fdatasync                       sys_fdatasync
-149    nospu   _sysctl                         sys_sysctl                      compat_sys_sysctl
+149    nospu   _sysctl                         sys_ni_syscall
 150    common  mlock                           sys_mlock
 151    common  munlock                         sys_munlock
 152    common  mlockall                        sys_mlockall
index 56ae24b..6a0bbea 100644 (file)
 146  common    writev                  sys_writev                      compat_sys_writev
 147  common    getsid                  sys_getsid                      sys_getsid
 148  common    fdatasync               sys_fdatasync                   sys_fdatasync
-149  common    _sysctl                 sys_sysctl                      compat_sys_sysctl
+149  common    _sysctl                 -                               -
 150  common    mlock                   sys_mlock                       compat_sys_mlock
 151  common    munlock                 sys_munlock                     compat_sys_munlock
 152  common    mlockall                sys_mlockall                    sys_mlockall
index 9d82078..f30d6ae 100644 (file)
 153    common  vhangup                 sys_vhangup
 154    common  modify_ldt              sys_modify_ldt
 155    common  pivot_root              sys_pivot_root
-156    64      _sysctl                 sys_sysctl
+156    64      _sysctl                 sys_ni_syscall
 157    common  prctl                   sys_prctl
 158    common  arch_prctl              sys_arch_prctl
 159    common  adjtimex                sys_adjtimex