Hi Baoquan, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.17 next-20180608] [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/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600 config: i386-tinyconfig (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 Note: the linux-review/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600 HEAD 5545e79eef6387857faf41cdffa7be6b1f5d4efe builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): >> kernel/resource.c:990:12: error: static declaration of 'reparent_resources' follows non-static declaration static int reparent_resources(struct resource *parent, ^~~~~~~~~~~~~~~~~~ In file included from kernel/resource.c:14:0: include/linux/ioport.h:195:5: note: previous declaration of 'reparent_resources' was here int reparent_resources(struct resource *parent, struct resource *res); ^~~~~~~~~~~~~~~~~~ kernel/resource.c:990:12: warning: 'reparent_resources' defined but not used [-Wunused-function] static int reparent_resources(struct resource *parent, ^~~~~~~~~~~~~~~~~~ vim +/reparent_resources +990 kernel/resource.c 985 986 /* 987 * Reparent resource children of pr that conflict with res 988 * under res, and make res replace those children. 989 */ > 990 static int reparent_resources(struct resource *parent, 991 struct resource *res) 992 { 993 struct resource *p, **pp; 994 struct resource **firstpp = NULL; 995 996 for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) { 997 if (p->end < res->start) 998 continue; 999 if (res->end < p->start) 1000 break; 1001 if (p->start < res->start || p->end > res->end) 1002 return -1; /* not completely contained */ 1003 if (firstpp == NULL) 1004 firstpp = pp; 1005 } 1006 if (firstpp == NULL) 1007 return -1; /* didn't find any conflicting entries? */ 1008 res->parent = parent; 1009 res->child = *firstpp; 1010 res->sibling = *pp; 1011 *firstpp = res; 1012 *pp = NULL; 1013 for (p = res->child; p != NULL; p = p->sibling) { 1014 p->parent = res; 1015 pr_debug("PCI: Reparented %s %pR under %s\n", 1016 p->name, p, res->name); 1017 } 1018 return 0; 1019 } 1020 EXPORT_SYMBOL(reparent_resources); 1021 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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