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Message-ID: <202503282026.QNaOAK79-lkp@intel.com>
Date: Fri, 28 Mar 2025 21:15:06 +0800
From: kernel test robot <lkp@...el.com>
To: Yuquan Wang <wangyuquan1236@...tium.com.cn>,
	Jonathan.Cameron@...wei.com, dan.j.williams@...el.com,
	rppt@...nel.org, rafael@...nel.org, lenb@...nel.org,
	akpm@...ux-foundation.org, alison.schofield@...el.com,
	rrichter@....com, bfaccini@...dia.com, haibo1.xu@...el.com,
	david@...hat.com
Cc: oe-kbuild-all@...ts.linux.dev, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	chenbaozi@...tium.com.cn,
	Yuquan Wang <wangyuquan1236@...tium.com.cn>
Subject: Re: [PATCH v2] mm: numa_memblks: introduce numa_add_reserved_memblk

Hi Yuquan,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/Yuquan-Wang/mm-numa_memblks-introduce-numa_add_reserved_memblk/20250328-172428
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20250328092132.2695299-1-wangyuquan1236%40phytium.com.cn
patch subject: [PATCH v2] mm: numa_memblks: introduce numa_add_reserved_memblk
config: loongarch-randconfig-002-20250328 (https://download.01.org/0day-ci/archive/20250328/202503282026.QNaOAK79-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250328/202503282026.QNaOAK79-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/202503282026.QNaOAK79-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/build_bug.h:5,
                    from include/linux/container_of.h:5,
                    from include/linux/list.h:5,
                    from include/linux/module.h:12,
                    from drivers/acpi/numa/srat.c:10:
   drivers/acpi/numa/srat.c: In function 'acpi_parse_cfmws':
>> drivers/acpi/numa/srat.c:461:13: error: implicit declaration of function 'numa_add_reserved_memblk' [-Wimplicit-function-declaration]
     461 |         if (numa_add_reserved_memblk(node, start, end) < 0) {
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler.h:57:52: note: in definition of macro '__trace_if_var'
      57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
         |                                                    ^~~~
   drivers/acpi/numa/srat.c:461:9: note: in expansion of macro 'if'
     461 |         if (numa_add_reserved_memblk(node, start, end) < 0) {
         |         ^~


vim +/numa_add_reserved_memblk +461 drivers/acpi/numa/srat.c

   431	
   432	static int __init acpi_parse_cfmws(union acpi_subtable_headers *header,
   433					   void *arg, const unsigned long table_end)
   434	{
   435		struct acpi_cedt_cfmws *cfmws;
   436		int *fake_pxm = arg;
   437		u64 start, end;
   438		int node;
   439	
   440		cfmws = (struct acpi_cedt_cfmws *)header;
   441		start = cfmws->base_hpa;
   442		end = cfmws->base_hpa + cfmws->window_size;
   443	
   444		/*
   445		 * The SRAT may have already described NUMA details for all,
   446		 * or a portion of, this CFMWS HPA range. Extend the memblks
   447		 * found for any portion of the window to cover the entire
   448		 * window.
   449		 */
   450		if (!numa_fill_memblks(start, end))
   451			return 0;
   452	
   453		/* No SRAT description. Create a new node. */
   454		node = acpi_map_pxm_to_node(*fake_pxm);
   455	
   456		if (node == NUMA_NO_NODE) {
   457			pr_err("ACPI NUMA: Too many proximity domains while processing CFMWS.\n");
   458			return -EINVAL;
   459		}
   460	
 > 461		if (numa_add_reserved_memblk(node, start, end) < 0) {
   462			/* CXL driver must handle the NUMA_NO_NODE case */
   463			pr_warn("ACPI NUMA: Failed to add memblk for CFMWS node %d [mem %#llx-%#llx]\n",
   464				node, start, end);
   465		}
   466		node_set(node, numa_nodes_parsed);
   467	
   468		/* Set the next available fake_pxm value */
   469		(*fake_pxm)++;
   470		return 0;
   471	}
   472	

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

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