linux-kernel - [kas:lam 4/13] arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu

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Message-ID: <202207131226.itbn6qxf-lkp@intel.com>
Date:   Wed, 13 Jul 2022 12:57:20 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [kas:lam 4/13] arch/x86/include/asm/tlbflush.h:380:36: error: use of
 undeclared identifier 'cpu_tlbstate'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git lam
head:   ca9762d59aa41bc0a580c2f7668038d31c991f59
commit: ce8762cf0c572b53a82a08a369376c28cfb6fda4 [4/13] x86/mm: Handle LAM on context switch
config: x86_64-randconfig-a005
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e60b4fb2b777118c0ff664a6347851df14fcf75b)
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/kas/linux.git/commit/?id=ce8762cf0c572b53a82a08a369376c28cfb6fda4
        git remote add kas https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git
        git fetch --no-tags kas lam
        git checkout ce8762cf0c572b53a82a08a369376c28cfb6fda4
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/video/fbdev/vermilion/

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

All errors (new ones prefixed by >>):

   In file included from drivers/video/fbdev/vermilion/vermilion.c:27:
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
           unsigned long lam = this_cpu_read(cpu_tlbstate.lam);
                                             ^
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
>> arch/x86/include/asm/tlbflush.h:380:36: error: use of undeclared identifier 'cpu_tlbstate'
   arch/x86/include/asm/tlbflush.h:387:17: error: use of undeclared identifier 'cpu_tlbstate'
           this_cpu_write(cpu_tlbstate.lam, mask >> X86_CR3_LAM_U57_BIT);
                          ^
   arch/x86/include/asm/tlbflush.h:387:17: error: use of undeclared identifier 'cpu_tlbstate'
   arch/x86/include/asm/tlbflush.h:387:17: error: use of undeclared identifier 'cpu_tlbstate'
   arch/x86/include/asm/tlbflush.h:387:17: error: use of undeclared identifier 'cpu_tlbstate'
   arch/x86/include/asm/tlbflush.h:387:17: error: use of undeclared identifier 'cpu_tlbstate'
   arch/x86/include/asm/tlbflush.h:387:17: error: use of undeclared identifier 'cpu_tlbstate'
   arch/x86/include/asm/tlbflush.h:387:17: error: use of undeclared identifier 'cpu_tlbstate'
   arch/x86/include/asm/tlbflush.h:387:17: error: use of undeclared identifier 'cpu_tlbstate'
   fatal error: too many errors emitted, stopping now [-ferror-limit=]
   20 errors generated.


vim +/cpu_tlbstate +380 arch/x86/include/asm/tlbflush.h

   376	
   377	#ifdef CONFIG_X86_64
   378	static inline unsigned long tlbstate_lam_cr3_mask(void)
   379	{
 > 380		unsigned long lam = this_cpu_read(cpu_tlbstate.lam);
   381	
   382		return lam << X86_CR3_LAM_U57_BIT;
   383	}
   384	

-- 
0-DAY CI Kernel Test Service
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