Hi Ahmed,

kernel test robot noticed the following build errors:

[auto build test ERROR on 2d1373e4246da3b58e1df058374ed6b101804e07]

url:    https://github.com/intel-lab-lkp/linux/commits/Ahmed-Tiba/ACPI-APEI-GHES-share-macros-via-a-private-header/20260319-115432
base:   2d1373e4246da3b58e1df058374ed6b101804e07
patch link:    https://lore.kernel.org/r/20260318-topics-ahmtib01-ras_ffh_arm_internal_review-v3-10-48e6a1c249ef%40arm.com
patch subject: [PATCH v3 10/10] RAS: add firmware-first CPER provider
config: hexagon-randconfig-001-20260320 (https://download.01.org/0day-ci/archive/20260320/202603200349.vMgMwlEs-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 4abb927bacf37f18f6359a41639a6d1b3bffffb5)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260320/202603200349.vMgMwlEs-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 [off-list ref]
| Closes: https://lore.kernel.org/oe-kbuild-all/202603200349.vMgMwlEs-lkp@intel.com/ (local)

All errors (new ones prefixed by >>):

quoted

drivers/ras/cper-esource.c:84:9: error: call to undeclared function 'readq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

      84 |                 val = readq(ctx->ack.addr);
         |                       ^

quoted

drivers/ras/cper-esource.c:87:3: error: call to undeclared function 'writeq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

      87 |                 writeq(val, ctx->ack.addr);
         |                 ^
   2 errors generated.


vim +/readq +84 drivers/ras/cper-esource.c

    75	
    76	static void cper_esource_ack(struct cper_esource *ctx)
    77	{
    78		u64 val;
    79	
    80		if (!ctx->ack.present)
    81			return;
    82	
    83		if (ctx->ack.width == 64) {
  > 84			val = readq(ctx->ack.addr);
    85			val &= ctx->ack.preserve;
    86			val |= ctx->ack.set;
  > 87			writeq(val, ctx->ack.addr);
    88		} else {
    89			val = readl(ctx->ack.addr);
    90			val &= (u32)ctx->ack.preserve;
    91			val |= (u32)ctx->ack.set;
    92			writel(val, ctx->ack.addr);
    93		}
    94	}
    95	

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