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
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.gitignore	selftests: move ptp tests from Documentation/ptp	2016-09-20 09:54:38 -06:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
testptp.c	posix-timers: Prevent UB from shifting negative signed value	2018-01-04 14:57:10 +01:00
testptp.mk	selftests: move ptp tests from Documentation/ptp	2016-09-20 09:54:38 -06:00