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Nathan Chancellor ef70eff9de kernel/profile.c: use cpumask_available to check for NULL cpumask 
When building with clang + -Wtautological-pointer-compare, these
instances pop up:

  kernel/profile.c:339:6: warning: comparison of array 'prof_cpu_mask' not equal to a null pointer is always true [-Wtautological-pointer-compare]
          if (prof_cpu_mask != NULL)
              ^~~~~~~~~~~~~    ~~~~
  kernel/profile.c:376:6: warning: comparison of array 'prof_cpu_mask' not equal to a null pointer is always true [-Wtautological-pointer-compare]
          if (prof_cpu_mask != NULL)
              ^~~~~~~~~~~~~    ~~~~
  kernel/profile.c:406:26: warning: comparison of array 'prof_cpu_mask' not equal to a null pointer is always true [-Wtautological-pointer-compare]
          if (!user_mode(regs) && prof_cpu_mask != NULL &&
                                ^~~~~~~~~~~~~    ~~~~
  3 warnings generated.

This can be addressed with the cpumask_available helper, introduced in
commit f7e30f01a9 ("cpumask: Add helper cpumask_available()") to fix
warnings like this while keeping the code the same.

Link: https://github.com/ClangBuiltLinux/linux/issues/747
Link: http://lkml.kernel.org/r/20191022191957.9554-1-natechancellor@gmail.com
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-12-04 19:44:12 -08:00
arch arch/Kconfig: fix indentation 2019-12-04 19:44:12 -08:00
block
certs
crypto
Documentation chrome platform changes for v5.5 2019-12-03 14:37:12 -08:00
drivers auxdisplay: charlcd: deduplicate simple_strtoul() 2019-12-04 19:44:12 -08:00
fs fs/proc/Kconfig: fix indentation 2019-12-04 19:44:11 -08:00
include kernel/notifier.c: remove blocking_notifier_chain_cond_register() 2019-12-04 19:44:12 -08:00
init
ipc
kernel kernel/profile.c: use cpumask_available to check for NULL cpumask 2019-12-04 19:44:12 -08:00
lib pci-v5.5-changes 2019-12-03 13:58:22 -08:00
LICENSES
mm mm/memory.c: replace is_zero_pfn with is_huge_zero_pmd for thp 2019-12-04 19:44:11 -08:00
net kernel/notifier.c: remove blocking_notifier_chain_cond_register() 2019-12-04 19:44:12 -08:00
samples
scripts scripts/get_maintainer.pl: add signatures from Fixes: <badcommit> lines in commit message 2019-12-04 19:44:12 -08:00
security + Features 2019-12-03 12:51:35 -08:00
sound
tools pci-v5.5-changes 2019-12-03 13:58:22 -08:00
usr linux/scc.h: make uapi linux/scc.h self-contained 2019-12-04 19:44:12 -08:00
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
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MAINTAINERS pci-v5.5-changes 2019-12-03 13:58:22 -08:00
Makefile
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.