From: kernel test robot <lkp@intel.com>
To: Dave Hansen <dave.hansen@linux.intel.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: [daveh-devel:kss 27/32] arch/x86/kernel/apic/apic.c:1058:15: error: invalid operand for instruction
Date: Mon, 19 Oct 2026 12:38:25 +0800 [thread overview]
Message-ID: <202610191244.sHoGL5wI-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/daveh/devel.git kss
head: 1b2e2aefa6c7e3d15fac1b25a971b2d2cc3b697d
commit: af4f990bae706330577d32faa7a7970cb22943f1 [27/32] kss-debug-irq
config: i386-defconfig (https://download.01.org/0day-ci/archive/20261019/202610191244.sHoGL5wI-lkp@intel.com/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261019/202610191244.sHoGL5wI-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610191244.sHoGL5wI-lkp@intel.com/
All errors (new ones prefixed by >>):
>> arch/x86/kernel/apic/apic.c:1058:15: error: invalid operand for instruction
1058 | asm volatile("rdsspq %0" : "+r" (ssp));
| ^
<inline asm>:1:9: note: instantiated into assembly here
1 | rdsspq %ebx
| ^~~~
1 error generated.
vim +1058 arch/x86/kernel/apic/apic.c
1053
1054 static __always_inline unsigned long rdssp(void)
1055 {
1056 unsigned long ssp = 0;
1057
> 1058 asm volatile("rdsspq %0" : "+r" (ssp));
1059 return ssp;
1060 }
1061
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-10-19 4:39 UTC|newest]
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