linux-toradex.git/lib/Kconfig.debug, branch v4.12

lib: add module support to linked list sorting tests

2017-05-09T00:15:10+00:00

Extract the linked list sorting test code into its own source file, to
allow to compile it either to a loadable module, or builtin into the
kernel.

Link: http://lkml.kernel.org/r/1488287219-15832-4-git-send-email-geert@linux-m68k.org
Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Andy Shevchenko 
Cc: Arnd Bergmann 
Cc: Paul Gortmaker 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

lib: add module support to array-based sort tests

2017-05-09T00:15:10+00:00

Allow to compile the array-based sort test code either to a loadable
module, or builtin into the kernel.

Link: http://lkml.kernel.org/r/1488287219-15832-3-git-send-email-geert@linux-m68k.org
Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Andy Shevchenko 
Cc: Arnd Bergmann 
Cc: Paul Gortmaker 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge tag 'docs-4.12' of git://git.lwn.net/linux

2017-05-02T17:21:17+00:00

Pull documentation update from Jonathan Corbet:
 "A reasonably busy cycle for documentation this time around. There is a
  new guide for user-space API documents, rather sparsely populated at
  the moment, but it's a start. Markus improved the infrastructure for
  converting diagrams. Mauro has converted much of the USB documentation
  over to RST. Plus the usual set of fixes, improvements, and tweaks.

  There's a bit more than the usual amount of reaching out of
  Documentation/ to fix comments elsewhere in the tree; I have acks for
  those where I could get them"

* tag 'docs-4.12' of git://git.lwn.net/linux: (74 commits)
  docs: Fix a couple typos
  docs: Fix a spelling error in vfio-mediated-device.txt
  docs: Fix a spelling error in ioctl-number.txt
  MAINTAINERS: update file entry for HSI subsystem
  Documentation: allow installing man pages to a user defined directory
  Doc/PM: Sync with intel_powerclamp code behavior
  zr364xx.rst: usb/devices is now at /sys/kernel/debug/
  usb.rst: move documentation from proc_usb_info.txt to USB ReST book
  convert philips.txt to ReST and add to media docs
  docs-rst: usb: update old usbfs-related documentation
  arm: Documentation: update a path name
  docs: process/4.Coding.rst: Fix a couple of document refs
  docs-rst: fix usb cross-references
  usb: gadget.h: be consistent at kernel doc macros
  usb: composite.h: fix two warnings when building docs
  usb: get rid of some ReST doc build errors
  usb.rst: get rid of some Sphinx errors
  usb/URB.txt: convert to ReST and update it
  usb/persist.txt: convert to ReST and add to driver-api book
  usb/hotplug.txt: convert to ReST and add to driver-api book
  ...

lib: remove AVR32 entry in Kconfig.debug compile with frame pointers

2017-05-01T07:27:15+00:00

AVR32 architecture has been removed from the Linux kernel sources, hence
clean up the architecture related symbols in lib/Kconfig.debug.

Signed-off-by: Hans-Christian Noren Egtvedt

sparc64: Use LOCKDEP_SMALL, not PROVE_LOCKING_SMALL

2017-04-18T20:11:07+00:00

CONFIG_PROVE_LOCKING_SMALL shrinks the memory usage of lockdep so the
kernel text, data, and bss fit in the required 32MB limit, but this
option is not set for every config that enables lockdep.

A 4.10 kernel fails to boot with the console output

    Kernel: Using 8 locked TLB entries for main kernel image.
    hypervisor_tlb_lock[2000000:0:8000000071c007c3:1]: errors with f
    Program terminated

with these config options

    CONFIG_LOCKDEP=y
    CONFIG_LOCK_STAT=y
    CONFIG_PROVE_LOCKING=n

To fix, rename CONFIG_PROVE_LOCKING_SMALL to CONFIG_LOCKDEP_SMALL, and
enable this option with CONFIG_LOCKDEP=y so we get the reduced memory
usage every time lockdep is turned on.

Tested that CONFIG_LOCKDEP_SMALL is set to 'y' if and only if
CONFIG_LOCKDEP is set to 'y'.  When other lockdep-related config options
that select CONFIG_LOCKDEP are enabled (e.g. CONFIG_LOCK_STAT or
CONFIG_PROVE_LOCKING), verified that CONFIG_LOCKDEP_SMALL is also
enabled.

Fixes: e6b5f1be7afe ("config: Adding the new config parameter CONFIG_PROVE_LOCKING_SMALL for sparc")
Signed-off-by: Daniel Jordan 
Reviewed-by: Babu Moger 
Signed-off-by: David S. Miller

lib/Kconfig.debug: correct documentation paths

2017-03-17T19:01:42+00:00

A bunch of documentation files have moved, correct the paths.

Signed-off-by: Hans Holmberg 
Signed-off-by: Jonathan Corbet

Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-02-28T18:44:16+00:00

Pull locking fixes from Ingo Molnar:
 "The main change is the uninlining of large refcount_t APIs, plus a
  header dependency fix.

  Note that the uninlining allowed us to enable the underflow/overflow
  warnings unconditionally and remove the debug Kconfig switch: this
  might trigger new warnings in buggy code and turn
  crashes/use-after-free bugs into less harmful memory leaks"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/refcounts: Add missing kernel.h header to have UINT_MAX defined
  locking/refcounts: Out-of-line everything

lib: add CONFIG_TEST_SORT to enable self-test of sort()

2017-02-25T01:46:57+00:00

Along with the addition made to Kconfig.debug, the prior existing but
permanently disabled test function has been slightly refactored.

Patch has been tested using QEMU 2.1.2 with a .config obtained through
'make defconfig' (x86_64) and manually enabling the option.

[arnd@arndb.de: move sort self-test into a separate file]
  Link: http://lkml.kernel.org/r/20170112110657.3123790-1-arnd@arndb.de
Link: http://lkml.kernel.org/r/HE1PR09MB0394B0418D504DCD27167D4FD49B0@HE1PR09MB0394.eurprd09.prod.outlook.com
Signed-off-by: Kostenzer Felix 
Signed-off-by: Arnd Bergmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

lib: add module support to atomic64 tests

2017-02-25T01:46:57+00:00

Allow to compile the atomic64 test code either to a loadable module, or
builtin into the kernel.

Link: http://lkml.kernel.org/r/1483470276-10517-3-git-send-email-geert@linux-m68k.org
Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

locking/refcounts: Out-of-line everything

2017-02-24T08:02:10+00:00

Linus asked to please make this real C code.

And since size then isn't an issue what so ever anymore, remove the
debug knob and make all WARN()s unconditional.

Suggested-by: Linus Torvalds 
Signed-off-by: Peter Zijlstra (Intel) 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: dwindsor@gmail.com
Cc: elena.reshetova@intel.com
Cc: gregkh@linuxfoundation.org
Cc: ishkamiel@gmail.com
Cc: keescook@chromium.org
Signed-off-by: Ingo Molnar