Hi Cyril, [auto build test ERROR on powerpc/next] [also build test ERROR on v4.8-rc3 next-20160819] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] [Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on] [Check https://git-scm.com/docs/git-format-patch for more information]
url: https://github.com/0day-ci/linux/commits/Cyril-Bur/powerpc-signals-Discard-transaction-state-from-signal-frames/20160822-131843 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-c2k_defconfig (attached as .config) compiler: powerpc-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609 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=powerpc All error/warnings (new ones prefixed by >>): In file included from arch/powerpc/include/asm/processor.h:13:0, from arch/powerpc/include/asm/thread_info.h:33, from include/linux/thread_info.h:54, from include/asm-generic/preempt.h:4, from ./arch/powerpc/include/generated/asm/preempt.h:1, from include/linux/preempt.h:59, from include/linux/spinlock.h:50, from include/linux/seqlock.h:35, from include/linux/time.h:5, from include/uapi/linux/timex.h:56, from include/linux/timex.h:56, from include/linux/sched.h:19, from arch/powerpc/kernel/signal_32.c:20: arch/powerpc/kernel/signal_32.c: In function 'sys_rt_sigreturn': >> arch/powerpc/include/asm/reg.h:64:23: error: left shift count >= width of >> type [-Werror=shift-count-overflow] #define __MASK(X) (1UL<<(X)) ^ arch/powerpc/include/asm/reg.h:116:18: note: in expansion of macro '__MASK' #define MSR_TS_T __MASK(MSR_TS_T_LG) /* Transaction Transactional */ ^ arch/powerpc/include/asm/reg.h:117:22: note: in expansion of macro 'MSR_TS_T' #define MSR_TS_MASK (MSR_TS_T | MSR_TS_S) /* Transaction State bits */ ^ arch/powerpc/include/asm/reg.h:118:34: note: in expansion of macro 'MSR_TS_MASK' #define MSR_TM_ACTIVE(x) (((x) & MSR_TS_MASK) != 0) /* Transaction active? */ ^ >> arch/powerpc/kernel/signal_32.c:1232:6: note: in expansion of macro >> 'MSR_TM_ACTIVE' if (MSR_TM_ACTIVE(mfmsr())) ^ >> arch/powerpc/include/asm/reg.h:64:23: error: left shift count >= width of >> type [-Werror=shift-count-overflow] #define __MASK(X) (1UL<<(X)) ^ arch/powerpc/include/asm/reg.h:115:18: note: in expansion of macro '__MASK' #define MSR_TS_S __MASK(MSR_TS_S_LG) /* Transaction Suspended */ ^ arch/powerpc/include/asm/reg.h:117:33: note: in expansion of macro 'MSR_TS_S' #define MSR_TS_MASK (MSR_TS_T | MSR_TS_S) /* Transaction State bits */ ^ arch/powerpc/include/asm/reg.h:118:34: note: in expansion of macro 'MSR_TS_MASK' #define MSR_TM_ACTIVE(x) (((x) & MSR_TS_MASK) != 0) /* Transaction active? */ ^ >> arch/powerpc/kernel/signal_32.c:1232:6: note: in expansion of macro >> 'MSR_TM_ACTIVE' if (MSR_TM_ACTIVE(mfmsr())) ^ cc1: all warnings being treated as errors vim +/MSR_TM_ACTIVE +1232 arch/powerpc/kernel/signal_32.c 1216 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM 1217 struct ucontext __user *uc_transact; 1218 unsigned long msr_hi; 1219 unsigned long tmp; 1220 int tm_restore = 0; 1221 #endif 1222 1223 /* 1224 * We always send the user to their signal handler non 1225 * transactionally. If there is a transactional/suspended state 1226 * then throw it away. The purpose of a sigreturn is to destroy 1227 * all traces of the signal frame, this includes any transactional 1228 * state created within in. 1229 * The cause is not important as there will never be a 1230 * recheckpoint so it's not user visible. 1231 */ > 1232 if (MSR_TM_ACTIVE(mfmsr())) 1233 tm_reclaim_current(0); 1234 1235 /* Always make any pending restarted system calls return -EINTR */ 1236 current->restart_block.fn = do_no_restart_syscall; 1237 1238 rt_sf = (struct rt_sigframe __user *) 1239 (regs->gpr[1] + __SIGNAL_FRAMESIZE + 16); 1240 if (!access_ok(VERIFY_READ, rt_sf, sizeof(*rt_sf))) --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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