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SubjectRe: [RESEND PATCH] resource: Merge resources on a node when hot-adding memory
Hi Rashmica,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.18-rc7]
[cannot apply to next-20180802]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Rashmica-Gupta/resource-Merge-resources-on-a-node-when-hot-adding-memory/20180803-221205
config: x86_64-randconfig-s1-08032324 (attached as .config)
compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

mm/memory_hotplug.c: In function 'add_memory':
>> mm/memory_hotplug.c:1191:3: error: implicit declaration of function 'release_mem_region_adjustable' [-Werror=implicit-function-declaration]
release_mem_region_adjustable(&iomem_resource, start, size);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/release_mem_region_adjustable +1191 mm/memory_hotplug.c

1179
1180 int __ref add_memory(int nid, u64 start, u64 size)
1181 {
1182 struct resource *res;
1183 int ret;
1184
1185 res = register_memory_resource(nid, start, size);
1186 if (IS_ERR(res))
1187 return PTR_ERR(res);
1188
1189 ret = add_memory_resource(nid, start, size, memhp_auto_online);
1190 if (ret < 0) {
> 1191 release_mem_region_adjustable(&iomem_resource, start, size);
1192 kfree(res);
1193 }
1194 return ret;
1195 }
1196 EXPORT_SYMBOL_GPL(add_memory);
1197

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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