Hi Cyril, [auto build test ERROR on powerpc/next] [also build test ERROR on v4.8-rc1 next-20160811] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Cyril-Bur/Consistent-TM-structures/20160812-075557 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-sbc834x_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/process.c:18: arch/powerpc/kernel/process.c: In function 'restore_fp': >> 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/process.c:211:29: note: in expansion of macro >> 'MSR_TM_ACTIVE' if (tsk->thread.load_fp || MSR_TM_ACTIVE(tsk->thread.regs->msr)) { ^ >> 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/process.c:211:29: note: in expansion of macro >> 'MSR_TM_ACTIVE' if (tsk->thread.load_fp || MSR_TM_ACTIVE(tsk->thread.regs->msr)) { ^ arch/powerpc/kernel/process.c: In function 'restore_math': >> 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/process.c:468:7: note: in expansion of macro 'MSR_TM_ACTIVE' if (!MSR_TM_ACTIVE(regs->msr) && ^ >> 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/process.c:468:7: note: in expansion of macro 'MSR_TM_ACTIVE' if (!MSR_TM_ACTIVE(regs->msr) && ^ cc1: all warnings being treated as errors vim +/MSR_TM_ACTIVE +211 arch/powerpc/kernel/process.c 195 EXPORT_SYMBOL_GPL(flush_fp_to_thread); 196 197 void enable_kernel_fp(void) 198 { 199 WARN_ON(preemptible()); 200 201 msr_check_and_set(MSR_FP); 202 203 if (current->thread.regs && (current->thread.regs->msr & MSR_FP)) { 204 check_if_tm_restore_required(current); 205 __giveup_fpu(current); 206 } 207 } 208 EXPORT_SYMBOL(enable_kernel_fp); 209 210 static int restore_fp(struct task_struct *tsk) { > 211 if (tsk->thread.load_fp || > MSR_TM_ACTIVE(tsk->thread.regs->msr)) { 212 load_fp_state(¤t->thread.fp_state); 213 current->thread.load_fp++; 214 return 1; 215 } 216 return 0; 217 } 218 #else 219 static int restore_fp(struct task_struct *tsk) { return 0; } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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