linux-kernel - [tip:x86/urgent 1/1] arch/x86/mm/fault.c:940:27: error: 'ARCH_DEFAULT

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Date:   Mon, 20 Sep 2021 22:33:48 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jiashuo Liang <liangjs@....edu.cn>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        x86@...nel.org, Borislav Petkov <bp@...e.de>
Subject: [tip:x86/urgent 1/1] arch/x86/mm/fault.c:940:27: error:
 'ARCH_DEFAULT_PKEY' undeclared

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/urgent
head:   0829d0b6bf0fb3453608798442deaf00c4a1abec
commit: 0829d0b6bf0fb3453608798442deaf00c4a1abec [1/1] x86/fault: Fix wrong signal when vsyscall fails with pkey
config: x86_64-randconfig-a014-20210920 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=0829d0b6bf0fb3453608798442deaf00c4a1abec
        git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
        git fetch --no-tags tip x86/urgent
        git checkout 0829d0b6bf0fb3453608798442deaf00c4a1abec
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   arch/x86/mm/fault.c: In function 'do_sigbus':
>> arch/x86/mm/fault.c:940:27: error: 'ARCH_DEFAULT_PKEY' undeclared (first use in this function)
     940 |       SIGBUS, BUS_ADRERR, ARCH_DEFAULT_PKEY);
         |                           ^~~~~~~~~~~~~~~~~
   arch/x86/mm/fault.c:940:27: note: each undeclared identifier is reported only once for each function it appears in
   arch/x86/mm/fault.c: In function 'do_user_addr_fault':
   arch/x86/mm/fault.c:1407:8: error: 'ARCH_DEFAULT_PKEY' undeclared (first use in this function)
    1407 |        ARCH_DEFAULT_PKEY);
         |        ^~~~~~~~~~~~~~~~~


vim +/ARCH_DEFAULT_PKEY +940 arch/x86/mm/fault.c

   932	
   933	static void
   934	do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
   935		  vm_fault_t fault)
   936	{
   937		/* Kernel mode? Handle exceptions or die: */
   938		if (!user_mode(regs)) {
   939			kernelmode_fixup_or_oops(regs, error_code, address,
 > 940						 SIGBUS, BUS_ADRERR, ARCH_DEFAULT_PKEY);
   941			return;
   942		}
   943	
   944		/* User-space => ok to do another page fault: */
   945		if (is_prefetch(regs, error_code, address))
   946			return;
   947	
   948		sanitize_error_code(address, &error_code);
   949	
   950		if (fixup_vdso_exception(regs, X86_TRAP_PF, error_code, address))
   951			return;
   952	
   953		set_signal_archinfo(address, error_code);
   954	

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

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