[weiny2:tip-pks-v4.10-5.12-rc 9/17] arch/x86/entry/common.c:328:3: error: implicit declaration of function 'pkrs_restore_irq'; did you mean

[kernel test robot <lkp@intel.com>]

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tree:   https://github.com/weiny2/linux-kernel.git tip-pks-v4.10-5.12-rc
head:   74e4f6716199c0b1af6e647582a6b83c4a38cd2d
commit: fdc7d4ec8c2b4ad63e037502fd15407c204a1642 [9/17] x86/entry: Preserve PKRS MSR across exceptions
config: x86_64-rhel-7.6-kselftests (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/weiny2/linux-kernel/commit/fdc7d4ec8c2b4ad63e037502fd15407c204a1642
        git remote add weiny2 https://github.com/weiny2/linux-kernel.git
        git fetch --no-tags weiny2 tip-pks-v4.10-5.12-rc
        git checkout fdc7d4ec8c2b4ad63e037502fd15407c204a1642
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   arch/x86/entry/common.c:200:24: warning: no previous prototype for 'do_SYSENTER_32' [-Wmissing-prototypes]
     200 | __visible noinstr long do_SYSENTER_32(struct pt_regs *regs)
         |                        ^~~~~~~~~~~~~~
   arch/x86/entry/common.c:318:24: warning: no previous prototype for 'xen_pv_evtchn_do_upcall' [-Wmissing-prototypes]
     318 | __visible noinstr void xen_pv_evtchn_do_upcall(struct pt_regs *regs)
         |                        ^~~~~~~~~~~~~~~~~~~~~~~
   arch/x86/entry/common.c: In function 'xen_pv_evtchn_do_upcall':
>> arch/x86/entry/common.c:328:3: error: implicit declaration of function 'pkrs_restore_irq'; did you mean 'xa_store_irq'? [-Werror=implicit-function-declaration]
     328 |   pkrs_restore_irq(regs);
         |   ^~~~~~~~~~~~~~~~
         |   xa_store_irq
   cc1: some warnings being treated as errors


vim +328 arch/x86/entry/common.c

   317	
   318	__visible noinstr void xen_pv_evtchn_do_upcall(struct pt_regs *regs)
   319	{
   320		irqentry_state_t state = irqentry_enter(regs);
   321		bool inhcall;
   322	
   323		run_sysvec_on_irqstack_cond(__xen_pv_evtchn_do_upcall, regs);
   324	
   325		inhcall = get_and_clear_inhcall();
   326		if (inhcall && !WARN_ON_ONCE(state.exit_rcu)) {
   327			/* Normally called by irqentry_exit, we must restore pkrs here */
 > 328			pkrs_restore_irq(regs);

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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