[arm-platforms:kvm-arm64/feat_xnx 58/69] arch/arm64/kvm/at.c:1661:22: error: expected string literal before '__LSE_PREAMBLE'

[arm-platforms:kvm-arm64/feat_xnx 58/69] arch/arm64/kvm/at.c:1661:22: error: expected string literal before '__LSE_PREAMBLE'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git kvm-arm64/feat_xnx
head:   b11e3a28eae505407614e967167e0ffb62262ef0
commit: cdb7d03d475199ccc94a87254a91566c05038446 [58/69] KVM: arm64: Add helper for swapping guest descriptor
config: arm64-randconfig-002-20251125 (https://download.01.org/0day-ci/archive/20251125/202511250700.kAutzJFm-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251125/202511250700.kAutzJFm-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/202511250700.kAutzJFm-lkp@intel.com/

All errors (new ones prefixed by >>):

   arch/arm64/kvm/at.c: In function '__lse_swap_desc':
>> arch/arm64/kvm/at.c:1661:22: error: expected string literal before '__LSE_PREAMBLE'
    1661 |         asm volatile(__LSE_PREAMBLE
         |                      ^~~~~~~~~~~~~~


vim +/__LSE_PREAMBLE +1661 arch/arm64/kvm/at.c

  1653	
  1654	static int __lse_swap_desc(u64 __user *ptep, u64 old, u64 new)
  1655	{
  1656		u64 tmp = old;
  1657		int ret = 0;
  1658	
  1659		uaccess_enable_privileged();
  1660	
> 1661		asm volatile(__LSE_PREAMBLE
  1662			     "1: cas	%[old], %[new], %[addr]\n"
  1663			     "2:\n"
  1664			     _ASM_EXTABLE_UACCESS_ERR(1b, 2b, %w[ret])
  1665			     : [old] "+r" (old), [addr] "+Q" (*ptep), [ret] "+r" (ret)
  1666			     : [new] "r" (new)
  1667			     : "memory");
  1668	
  1669		uaccess_disable_privileged();
  1670	
  1671		if (ret)
  1672			return ret;
  1673		if (tmp != old)
  1674			return -EAGAIN;
  1675	
  1676		return ret;
  1677	}
  1678	

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