[peterz-queue:x86/ibt 9/9] arch/x86/kernel/early_printk.c:102:1: error: expected string literal in 'asm'

[peterz-queue:x86/ibt 9/9] arch/x86/kernel/early_printk.c:102:1: error: expected string literal in 'asm'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/ibt
head:   57750f0464beab3927ad570e0c1b5e78c91dd1b6
commit: 57750f0464beab3927ad570e0c1b5e78c91dd1b6 [9/9] x86/early_printk: Harden early_serial
config: i386-buildonly-randconfig-005-20250207 (https://download.01.org/0day-ci/archive/20250207/202502070258.zDk7RoH7-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250207/202502070258.zDk7RoH7-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/202502070258.zDk7RoH7-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/x86/kernel/early_printk.c:102:1: error: expected string literal in 'asm'
     102 | ANNOTATE_NOENDBR_SYM(io_serial_in);
         | ^
   include/linux/objtool.h:150:76: note: expanded from macro 'ANNOTATE_NOENDBR_SYM'
     150 | #define ANNOTATE_NOENDBR_SYM(sym)       asm(__ASM_ANNOTATE(sym, ANNOTYPE_NOENDBR))
         |                                                                                  ^
   arch/x86/kernel/early_printk.c:108:1: error: expected string literal in 'asm'
     108 | ANNOTATE_NOENDBR_SYM(io_serial_out);
         | ^
   include/linux/objtool.h:150:76: note: expanded from macro 'ANNOTATE_NOENDBR_SYM'
     150 | #define ANNOTATE_NOENDBR_SYM(sym)       asm(__ASM_ANNOTATE(sym, ANNOTYPE_NOENDBR))
         |                                                                                  ^
   arch/x86/kernel/early_printk.c:200:1: error: expected string literal in 'asm'
     200 | ANNOTATE_NOENDBR_SYM(mem32_serial_out);
         | ^
   include/linux/objtool.h:150:76: note: expanded from macro 'ANNOTATE_NOENDBR_SYM'
     150 | #define ANNOTATE_NOENDBR_SYM(sym)       asm(__ASM_ANNOTATE(sym, ANNOTYPE_NOENDBR))
         |                                                                                  ^
   arch/x86/kernel/early_printk.c:208:1: error: expected string literal in 'asm'
     208 | ANNOTATE_NOENDBR_SYM(mem32_serial_in);
         | ^
   include/linux/objtool.h:150:76: note: expanded from macro 'ANNOTATE_NOENDBR_SYM'
     150 | #define ANNOTATE_NOENDBR_SYM(sym)       asm(__ASM_ANNOTATE(sym, ANNOTYPE_NOENDBR))
         |                                                                                  ^
   4 errors generated.


vim +/asm +102 arch/x86/kernel/early_printk.c

    97	
    98	static __noendbr unsigned int io_serial_in(unsigned long addr, int offset)
    99	{
   100		return inb(addr + offset);
   101	}
 > 102	ANNOTATE_NOENDBR_SYM(io_serial_in);
   103	

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