Hi Eric, [auto build test WARNING on tip/timers/core] [also build test WARNING on v4.5-rc6 next-20160229] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Eric-Biggers/vfs-constify-arguments-to-utime-family-of-system-calls/20160301-132301 config: alpha-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=alpha All warnings (new ones prefixed by >>): arch/alpha/kernel/osf_sys.c: In function 'SYSC_osf_utimes': >> arch/alpha/kernel/osf_sys.c:1074:7: warning: passing argument 2 of 'get_tv32' discards 'const' qualifier from pointer target type if (get_tv32(&ktvs[0], &tvs[0]) || ^ arch/alpha/kernel/osf_sys.c:955:1: note: expected 'struct timeval32 *' but argument is of type 'const struct timeval32 *' get_tv32(struct timeval *o, struct timeval32 __user *i) ^ arch/alpha/kernel/osf_sys.c:1075:7: warning: passing argument 2 of 'get_tv32' discards 'const' qualifier from pointer target type get_tv32(&ktvs[1], &tvs[1])) ^ arch/alpha/kernel/osf_sys.c:955:1: note: expected 'struct timeval32 *' but argument is of type 'const struct timeval32 *' get_tv32(struct timeval *o, struct timeval32 __user *i) ^ vim +1074 arch/alpha/kernel/osf_sys.c ^1da177e Linus Torvalds 2005-04-16 1058 return error; ^1da177e Linus Torvalds 2005-04-16 1059 ^1da177e Linus Torvalds 2005-04-16 1060 if (put_it32(out, &kout)) ^1da177e Linus Torvalds 2005-04-16 1061 return -EFAULT; ^1da177e Linus Torvalds 2005-04-16 1062 ^1da177e Linus Torvalds 2005-04-16 1063 return 0; ^1da177e Linus Torvalds 2005-04-16 1064 ^1da177e Linus Torvalds 2005-04-16 1065 } ^1da177e Linus Torvalds 2005-04-16 1066 c7887325 David Howells 2010-08-11 1067 SYSCALL_DEFINE2(osf_utimes, const char __user *, filename, ec284566 Eric Biggers 2016-02-29 1068 const struct timeval32 __user *, tvs) ^1da177e Linus Torvalds 2005-04-16 1069 { 1c710c89 Ulrich Drepper 2007-05-08 1070 struct timespec tv[2]; ^1da177e Linus Torvalds 2005-04-16 1071 ^1da177e Linus Torvalds 2005-04-16 1072 if (tvs) { 1c710c89 Ulrich Drepper 2007-05-08 1073 struct timeval ktvs[2]; ^1da177e Linus Torvalds 2005-04-16 @1074 if (get_tv32(&ktvs[0], &tvs[0]) || ^1da177e Linus Torvalds 2005-04-16 1075 get_tv32(&ktvs[1], &tvs[1])) ^1da177e Linus Torvalds 2005-04-16 1076 return -EFAULT; 1c710c89 Ulrich Drepper 2007-05-08 1077 1c710c89 Ulrich Drepper 2007-05-08 1078 if (ktvs[0].tv_usec < 0 || ktvs[0].tv_usec >= 1000000 || 1c710c89 Ulrich Drepper 2007-05-08 1079 ktvs[1].tv_usec < 0 || ktvs[1].tv_usec >= 1000000) 1c710c89 Ulrich Drepper 2007-05-08 1080 return -EINVAL; 1c710c89 Ulrich Drepper 2007-05-08 1081 1c710c89 Ulrich Drepper 2007-05-08 1082 tv[0].tv_sec = ktvs[0].tv_sec; :::::: The code at line 1074 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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