Hi Amanieu, [auto build test WARNING on arm64/for-next/core -- if it's inappropriate base, please suggest rules for selecting the more suitable base]
url: https://github.com/0day-ci/linux/commits/Amanieu-d-Antras/Fix-handling-of-compat_siginfo_t/20151015-051137 reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> arch/x86/kernel/signal_compat.c:158:30: sparse: Using plain integer as NULL >> pointer arch/x86/kernel/signal_compat.c:197:30: sparse: Using plain integer as NULL pointer vim +158 arch/x86/kernel/signal_compat.c 142 err |= __copy_from_user(to->_sifields._pad, from->_sifields._pad, SI_PAD_SIZE * sizeof(int)) 143 ? -EFAULT : 0; 144 return err; 145 } 146 switch (to->si_code & __SI_MASK) { 147 case __SI_KILL: 148 err |= __get_user(to->si_pid, &from->si_pid); 149 err |= __get_user(to->si_uid, &from->si_uid); 150 break; 151 case __SI_TIMER: 152 err |= __get_user(to->si_tid, &from->si_tid); 153 err |= __get_user(to->si_overrun, &from->si_overrun); 154 /* 155 * Put the sigval in si_int, which matches the convention 156 * used in get_compat_sigevent. 157 */ > 158 to->si_ptr = 0; /* Avoid uninitialized bits in the > union */ 159 err |= __get_user(to->si_int, &from->si_int); 160 break; 161 case __SI_POLL: 162 err |= __get_user(to->si_band, &from->si_band); 163 err |= __get_user(to->si_fd, &from->si_fd); 164 break; 165 case __SI_FAULT: 166 err |= __get_user(ptr32, &from->si_addr); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
