tree: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next-test head: 103bf32b0d2dd8b8a4d3d9ebdded5ba4e8263e6a commit: 88a293b28ae07acc86b09ebbe8715bcee412a63e [119/124] powerpc/64: use interrupt restart table to speed up return from interrupt config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=88a293b28ae07acc86b09ebbe8715bcee412a63e git remote add powerpc https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git git fetch --no-tags powerpc next-test git checkout 88a293b28ae07acc86b09ebbe8715bcee412a63e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
All warnings (new ones prefixed by >>):
arch/powerpc/kernel/interrupt.c:246:23: warning: no previous prototype for
'syscall_exit_prepare_main' [-Wmissing-prototypes]
246 | notrace unsigned long syscall_exit_prepare_main(unsigned long r3,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/kernel/interrupt.c:378:23: warning: no previous prototype for
>> 'syscall_exit_restart' [-Wmissing-prototypes]
378 | notrace unsigned long syscall_exit_restart(unsigned long r3, struct
pt_regs *regs)
| ^~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/kernel/interrupt.c:581:23: warning: no previous prototype for
>> 'interrupt_exit_user_restart' [-Wmissing-prototypes]
581 | notrace unsigned long interrupt_exit_user_restart(struct pt_regs
*regs)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/kernel/interrupt.c:601:23: warning: no previous prototype for
>> 'interrupt_exit_kernel_restart' [-Wmissing-prototypes]
601 | notrace unsigned long interrupt_exit_kernel_restart(struct pt_regs
*regs)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/syscall_exit_restart +378 arch/powerpc/kernel/interrupt.c
376
377 #ifdef CONFIG_PPC64
> 378 notrace unsigned long syscall_exit_restart(unsigned long r3, struct
> pt_regs *regs)
379 {
380 /*
381 * This is called when detecting a soft-pending interrupt as
well as
382 * an alternate-return interrupt. So we can't just have the
alternate
383 * return path clear SRR1[MSR] and set PACA_IRQ_HARD_DIS (unless
384 * the soft-pending case were to fix things up as well). RI
might be
385 * disabled, in which case it gets re-enabled by
__hard_irq_disable().
386 */
387 __hard_irq_disable();
388 local_paca->irq_happened |= PACA_IRQ_HARD_DIS;
389
390 trace_hardirqs_off();
391 user_exit_irqoff();
392 account_cpu_user_entry();
393
394 BUG_ON(!user_mode(regs));
395
396 regs->exit_result |= syscall_exit_prepare_main(r3, regs);
397
398 return regs->exit_result;
399 }
400 #endif
401
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
