Merge tag 'printk-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/printk...

Pull printk updates from Petr Mladek:

 - Optionally, provide an index of possible printk messages via
   <debugfs>/printk/index/. It can be used when monitoring important
   kernel messages on a farm of various hosts. The monitor has to be
   updated when some messages has changed or are not longer available by
   a newly deployed kernel.

 - Add printk.console_no_auto_verbose boot parameter. It allows to
   generate crash dump even with slow consoles in a reasonable time
   frame.

 - Remove printk_safe buffers. The messages are always stored directly
   to the main logbuffer, even in NMI or recursive context. Also it
   allows to serialize syslog operations by a mutex instead of a spin
   lock.

 - Misc clean up and build fixes.

* tag 'printk-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  printk/index: Fix -Wunused-function warning
  lib/nmi_backtrace: Serialize even messages about idle CPUs
  printk: Add printk.console_no_auto_verbose boot parameter
  printk: Remove console_silent()
  lib/test_scanf: Handle n_bits == 0 in random tests
  printk: syslog: close window between wait and read
  printk: convert @syslog_lock to mutex
  printk: remove NMI tracking
  printk: remove safe buffers
  printk: track/limit recursion
  lib/nmi_backtrace: explicitly serialize banner and regs
  printk: Move the printk() kerneldoc comment to its new home
  printk/index: Fix warning about missing prototypes
  MIPS/asm/printk: Fix build failure caused by printk
  printk: index: Add indexing support to dev_printk
  printk: Userspace format indexing support
  printk: Rework parse_prefix into printk_parse_prefix
  printk: Straighten out log_flags into printk_info_flags
  string_helpers: Escape double quotes in escape_special
  printk/console: Check consistent sequence number when handling race in console_unlock()

diff --cc Documentation/admin-guide/kernel-parameters.txt
Simple merge

diff --cc MAINTAINERS
index 63bddf7,a19a104..0d4b896
--- 1/MAINTAINERS
--- 2/MAINTAINERS
+++ b/MAINTAINERS
@@@ -15021,6 -14918,18 +15021,11 @@@ S: Maintaine
  F:    include/linux/printk.h
  F:    kernel/printk/
  
 -PRISM54 WIRELESS DRIVER
 -M:    Luis Chamberlain <mcgrof@kernel.org>
 -L:    linux-wireless@vger.kernel.org
 -S:    Obsolete
 -W:    https://wireless.wiki.kernel.org/en/users/Drivers/p54
 -F:    drivers/net/wireless/intersil/prism54/
 -
+ PRINTK INDEXING
+ R:    Chris Down <chris@chrisdown.name>
+ S:    Maintained
+ F:    kernel/printk/index.c
+ 
  PROC FILESYSTEM
  L:    linux-kernel@vger.kernel.org
  L:    linux-fsdevel@vger.kernel.org

diff --cc arch/powerpc/kernel/traps.c
Simple merge

diff --cc drivers/base/core.c
Simple merge

diff --cc include/asm-generic/vmlinux.lds.h
Simple merge

diff --cc init/Kconfig
Simple merge

diff --cc kernel/trace/trace.c
Simple merge