Messages in this thread | | | Date | Thu, 13 Apr 2017 07:15:23 +0800 | From | kbuild test robot <> | Subject | [tip:WIP.sched/cpusallowed 4/13] arch/ia64/sn/kernel/sn2/sn_hwperf.c:640:26: error: passing argument 2 of 'work_on_cpu_safe' from incompatible pointer type |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.sched/cpusallowed head: 4ba98c7ec4094a9123d0d6aabb4497290207b518 commit: ca631e2b69f859a8d51855b32dd45a65e78f2bfc [4/13] ia64/sn/hwperf: Use work_on_cpu_safe() config: ia64-allyesconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 6.2.0 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout ca631e2b69f859a8d51855b32dd45a65e78f2bfc # save the attached .config to linux build tree make.cross ARCH=ia64
All errors (new ones prefixed by >>):
arch/ia64/sn/kernel/sn2/sn_hwperf.c: In function 'sn_hwperf_op_cpu': >> arch/ia64/sn/kernel/sn2/sn_hwperf.c:640:26: error: passing argument 2 of 'work_on_cpu_safe' from incompatible pointer type [-Werror=incompatible-pointer-types] work_on_cpu_safe(cpu, sn_hwperf_call_sal, op_info); ^~~~~~~~~~~~~~~~~~ In file included from include/linux/fs.h:31:0, from arch/ia64/sn/kernel/sn2/sn_hwperf.c:26: include/linux/workqueue.h:617:6: note: expected 'long int (*)(void *)' but argument is of type 'void (*)(void *)' long work_on_cpu_safe(int cpu, long (*fn)(void *), void *arg); ^~~~~~~~~~~~~~~~ arch/ia64/sn/kernel/sn2/sn_hwperf.c:612:12: warning: unused variable 'save_allowed' [-Wunused-variable] cpumask_t save_allowed; ^~~~~~~~~~~~ At top level: arch/ia64/sn/kernel/sn2/sn_hwperf.c:601:13: warning: 'sn_hwperf_call_sal_work' defined but not used [-Wunused-function] static long sn_hwperf_call_sal_work(void *info) ^~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors
vim +/work_on_cpu_safe +640 arch/ia64/sn/kernel/sn2/sn_hwperf.c
634 if (use_ipi) { 635 /* use an interprocessor interrupt to call SAL */ 636 smp_call_function_single(cpu, sn_hwperf_call_sal, 637 op_info, 1); 638 } else { 639 /* Call on the target CPU */ > 640 work_on_cpu_safe(cpu, sn_hwperf_call_sal, op_info); 641 } 642 } 643 r = op_info->ret;
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