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The source for the Linux kernel used in Windows Subsystem for Linux 2 (WSL2)
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Nathan Chancellor 13cebeeca2 powerpc/xmon: Fix opcode being uninitialized in print_insn_powerpc 
[ Upstream commit e7140639b1 ]

When building with -Wsometimes-uninitialized, Clang warns:

  arch/powerpc/xmon/ppc-dis.c:157:7: warning: variable 'opcode' is used
  uninitialized whenever 'if' condition is false
  [-Wsometimes-uninitialized]
    if (cpu_has_feature(CPU_FTRS_POWER9))
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/powerpc/xmon/ppc-dis.c:167:7: note: uninitialized use occurs here
    if (opcode == NULL)
        ^~~~~~
  arch/powerpc/xmon/ppc-dis.c:157:3: note: remove the 'if' if its
  condition is always true
    if (cpu_has_feature(CPU_FTRS_POWER9))
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/powerpc/xmon/ppc-dis.c:132:38: note: initialize the variable
  'opcode' to silence this warning
    const struct powerpc_opcode *opcode;
                                       ^
                                        = NULL
  1 warning generated.

This warning seems to make no sense on the surface because opcode is set
to NULL right below this statement. However, there is a comma instead of
semicolon to end the dialect assignment, meaning that the opcode
assignment only happens in the if statement. Properly terminate that
line so that Clang no longer warns.

Fixes: 5b102782c7 ("powerpc/xmon: Enable disassembly files (compilation changes)")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2019-04-05 22:31:30 +02:00
Documentation KVM: Reject device ioctls from processes other than the VM's creator 2019-04-03 06:25:20 +02:00
arch powerpc/xmon: Fix opcode being uninitialized in print_insn_powerpc 2019-04-05 22:31:30 +02:00
block blk-mq: fix a hung issue when fsync 2019-02-20 10:20:44 +01:00
certs Replace magic for trusting the secondary keyring with #define 2018-09-09 19:55:54 +02:00
crypto crypto: pcbc - remove bogus memcpy()s with src == dest 2019-03-23 14:35:21 +01:00
drivers scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c 2019-04-05 22:31:30 +02:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs fs: fix guard_bio_eod to check for real EOD errors 2019-04-05 22:31:28 +02:00
include include/linux/relay.h: fix percpu annotation in struct rchan 2019-04-05 22:31:26 +02:00
init Revert "mm: use early_pfn_to_nid in page_ext_init" 2019-03-23 14:35:13 +01:00
ipc ipc/sem.c: prevent queue.status tearing in semop 2018-09-05 09:26:30 +02:00
kernel sysctl: handle overflow for file-max 2019-04-05 22:31:26 +02:00
lib lib/int_sqrt: optimize initial value compute 2019-04-05 22:31:24 +02:00
mm page_poison: play nicely with KASAN 2019-04-05 22:31:28 +02:00
net tcp: do not use ipv6 header for ipv4 flow 2019-04-03 06:25:09 +02:00
samples samples: mei: use /dev/mei0 instead of /dev/mei 2019-02-15 08:09:12 +01:00
scripts kbuild: modversions: Fix relative CRC byte order interpretation 2019-04-03 06:25:17 +02:00
security security/selinux: fix SECURITY_LSM_NATIVE_LABELS on reused superblock 2019-03-23 14:35:26 +01:00
sound ALSA: hda/realtek - Add support headset mode for New DELL WYSE NB 2019-04-03 06:25:16 +02:00
tools tools lib traceevent: Fix buffer overflow in arg_eval 2019-04-05 22:31:29 +02:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt KVM: Reject device ioctls from processes other than the VM's creator 2019-04-03 06:25:20 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Add hch to .get_maintainer.ignore 2015-08-21 14:30:10 -07:00
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING [PATCH] update FSF address in COPYING 2005-09-10 10:06:29 -07:00
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS MAINTAINERS: Add Sasha as a stable branch maintainer 2018-12-01 09:42:50 +01:00
Makefile Linux 4.14.110 2019-04-03 06:25:21 +02:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

README 

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.