linux-kernel - [tip:x86/core 13/22] arch/x86/include/asm/processor.h:698:16: sparse: sparse: incorrect type in initializer (different address spaces)

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Date:   Tue, 17 Oct 2023 00:59:49 +0800
From:   kernel test robot <lkp@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        x86@...nel.org, Arjan van de Ven <arjan@...ux.intel.com>
Subject: [tip:x86/core 13/22] arch/x86/include/asm/processor.h:698:16:
 sparse: sparse: incorrect type in initializer (different address spaces)

Hi Thomas,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core
head:   92fe9bb77b0c9fade150350fdb0629a662f0923f
commit: 6e29032340b60f7aa7475c8234b17273e4424007 [13/22] x86/cpu: Move cpu_l[l2]c_id into topology info
config: x86_64-randconfig-122-20231016 (https://download.01.org/0day-ci/archive/20231017/202310170010.yzc9t6Bd-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231017/202310170010.yzc9t6Bd-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310170010.yzc9t6Bd-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   arch/x86/events/amd/uncore.c: note: in included file (through arch/x86/include/asm/cpufeature.h, arch/x86/include/asm/thread_info.h, include/linux/thread_info.h, ...):
>> arch/x86/include/asm/processor.h:698:16: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void const [noderef] __percpu *__vpp_verify @@     got unsigned int * @@
   arch/x86/include/asm/processor.h:698:16: sparse:     expected void const [noderef] __percpu *__vpp_verify
   arch/x86/include/asm/processor.h:698:16: sparse:     got unsigned int *

vim +698 arch/x86/include/asm/processor.h

   695	
   696	static inline u16 per_cpu_llc_id(unsigned int cpu)
   697	{
 > 698		return per_cpu(cpu_info.topo.llc_id, cpu);
   699	}
   700	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki