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29f1b2b0fe
linux/tools/testing/selftests
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Nick Desaulniers 29f1b2b0fe posix-timers: Prevent UB from shifting negative signed value 
Shifting a negative signed number is undefined behavior. Looking at the
macros MAKE_PROCESS_CPUCLOCK and FD_TO_CLOCKID, it seems that the
subexpression:

(~(clockid_t) (pid) << 3)

where clockid_t resolves to a signed int, which once negated, is
undefined behavior to shift the value of if the results thus far are
negative.

It was further suggested to make these macros into inline functions.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Nick Desaulniers <nick.desaulniers@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Dimitri Sivanich <sivanich@hpe.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kselftest@vger.kernel.org
Cc: Shuah Khan <shuah@kernel.org>
Cc: Deepa Dinamani <deepa.kernel@gmail.com>
Link: https://lkml.kernel.org/r/1514517100-18051-1-git-send-email-nick.desaulniers@gmail.com
2018-01-04 14:57:10 +01:00
..
android android/ion: userspace test utility for ion buffer sharing 2017-11-15 08:07:53 -07:00
bpf selftests/bpf: fix Makefile for passing LLC to the command line 2017-12-22 00:54:31 +01:00
breakpoints selftests: breakpoints: fix compile error on breakpoint_test_arm64 2017-11-15 08:01:43 -07:00
capabilities License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cpu-hotplug selftests: remove obsolete kconfig fragment for cpu-hotplug 2017-11-15 08:01:43 -07:00
cpufreq License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drivers/gpu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
efivarfs License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
exec selftests/exec: include cwd in long path calculation 2017-11-15 08:01:42 -07:00
filesystems License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
firmware selftests: firmware: skip unsupported custom firmware fallback tests 2017-11-15 08:27:57 -07:00
ftrace selftests/ftrace: Introduce exit_pass and exit_fail 2017-11-15 08:07:53 -07:00
futex License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gpio License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ia64 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
intel_pstate License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ipc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kcmp License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kmod test_kmod: fix description for -s -and -c parameters 2017-08-18 15:32:01 -07:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
locking License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
media_tests License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
membarrier License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
memfd selftests: memfd_test.c: fix compilation warning. 2017-11-15 08:07:53 -07:00
memory-hotplug selftests: add missing test result status in memory-hotplug test 2017-11-15 08:01:43 -07:00
mount License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mqueue License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
net selftests: net: Adding config fragment CONFIG_NUMA=y 2017-12-20 14:25:34 -05:00
networking/timestamping License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nsfs License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ntb ntb: ntb_test: ensure the link is up before trying to configure the mws 2017-08-01 15:18:59 -04:00
powerpc powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
prctl License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pstore License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ptp posix-timers: Prevent UB from shifting negative signed value 2018-01-04 14:57:10 +01:00
ptrace License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rcutorture Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 12:38:26 -08:00
seccomp selftests: seccomp: update .gitignore with newly added tests 2017-11-15 08:01:42 -07:00
sigaltstack License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
size kselftest: convert get_size to use stricter TAP13 format 2017-06-14 18:23:27 -06:00
splice License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
static_keys License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sync License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysctl test_sysctl: fix sysctl.sh by making it executable 2017-08-07 15:13:36 -06:00
tc-testing Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
timers selftests: timers: Update .gitignore with newly added tests 2017-11-15 08:01:42 -07:00
user License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vDSO selftests: vdso_test: support ARM64 targets 2017-11-15 08:01:43 -07:00
vm Merge branch 'akpm' (patches from Andrew) 2017-11-17 16:56:17 -08:00
watchdog License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
x86 Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-12-29 17:02:49 -08:00
zram License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
.gitignore selftests: add gpio generated files to .gitignore 2017-04-25 09:49:38 -06:00
gen_kselftest_tar.sh
kselftest_harness.h selftests: Enhance kselftest_harness.h to print which assert failed 2017-09-05 19:21:33 -06:00
kselftest_install.sh
kselftest.h selftests: kselftest framework: change skip exit code to 0 2017-08-25 10:02:00 -06:00
lib.mk selftests: lib.mk: print individual test results to console by default 2017-10-31 13:24:00 -06:00
Makefile android/ion: userspace test utility for ion buffer sharing 2017-11-15 08:07:53 -07:00