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Justin Stitt 258fafcd06 Makefile.extrawarn: re-enable -Wformat for clang
There's been an ongoing mission to re-enable the -Wformat warning for
Clang. A previous attempt at enabling the warning showed that there were
many instances of this warning throughout the codebase. The sheer amount
of these warnings really polluted builds and thus -Wno-format was added
to _temporarily_ toggle them off.

After many patches the warning has largely been eradicated for x86,
x86_64, arm, and arm64 on a variety of configs. The time to enable the
warning has never been better as it seems for the first time we are
ahead of them and can now solve them as they appear rather than tackling
from a backlog.

As to the root cause of this large backlog of warnings, Clang seems to
pickup on some more nuanced cases of format warnings caused by implicit
integer conversion as well as default argument promotions from
printf-like functions.

Link: https://github.com/ClangBuiltLinux/linux/issues/378
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-08-03 19:37:59 +09:00
arch kbuild: drop support for CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 2022-07-27 21:17:59 +09:00
block block: remove WARN_ON() from bd_link_disk_holder 2022-06-23 07:48:05 -06:00
certs certs: unify blacklist_hashes.c and blacklist_nohashes.c 2022-07-27 21:17:59 +09:00
crypto crypto: s390 - do not depend on CRYPTO_HW for SIMD implementations 2022-07-06 20:04:06 -07:00
Documentation docs: kbuild: fix typo 2022-07-27 21:18:00 +09:00
drivers Merge branch 'hot-fixes' (fixes for rc6) 2022-07-10 14:26:49 -07:00
fs o_uring-5.19-2022-07-09 2022-07-10 09:14:54 -07:00
include Char/Misc driver fixes for 5.19-rc6 2022-07-10 09:45:29 -07:00
init init/Kconfig: update KALLSYMS_ALL help text 2022-07-27 21:17:59 +09:00
ipc These changes update the ipc sysctls so that they are fundamentally 2022-06-03 15:54:57 -07:00
kernel ptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced() 2022-07-09 11:06:19 -07:00
lib ida: don't use BUG_ON() for debugging 2022-07-10 13:55:49 -07:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm Minor things, mainly - mailmap updates, MAINTAINERS updates, etc. 2022-06-26 14:00:55 -07:00
net Networking fixes for 5.19-rc6, including fixes from bpf, netfilter, 2022-07-07 10:08:20 -07:00
samples fprobe, samples: Add module parameter descriptions 2022-06-24 15:23:04 -07:00
scripts Makefile.extrawarn: re-enable -Wformat for clang 2022-08-03 19:37:59 +09:00
security selinux: free contexts previously transferred in selinux_add_opt() 2022-06-15 21:20:45 -04:00
sound ALSA: cs46xx: Fix missing snd_card_free() call at probe error 2022-07-05 17:24:05 +02:00
tools - Prepare for and clear .brk early in order to address XenPV guests 2022-07-10 08:43:52 -07:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt KVM: x86: disable preemption around the call to kvm_arch_vcpu_{un|}blocking 2022-06-09 10:52:20 -04:00
.clang-format clang-format: Fix space after for_each macros 2022-05-20 19:27:16 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore kbuild: split the second line of *.mod into *.usyms 2022-05-08 03:16:59 +09:00
.mailmap cxl fixes for 5.19-rc6 2022-07-08 12:55:25 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: replace a Microchip AT91 maintainer 2022-02-09 11:30:01 +01:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS certs: move scripts/check-blacklist-hashes.awk to certs/ 2022-07-27 21:17:59 +09:00
Makefile kbuild: add dtbs_prepare target 2022-07-31 02:19:40 +09:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.