Hi Ravi, Thank you for the patch! Yet something to improve: [auto build test ERROR on tip/perf/core] [also build test ERROR on v4.16 next-20180403] [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/Ravi-Bangoria/trace_uprobe-Support-SDT-markers-having-reference-count-semaphore/20180404-201900 config: i386-randconfig-a0-201813 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): kernel//trace/trace_uprobe.c:947:21: error: variable 'sdt_mmu_notifier_ops' has initializer but incomplete type static const struct mmu_notifier_ops sdt_mmu_notifier_ops = { ^ >> kernel//trace/trace_uprobe.c:948:2: error: unknown field 'release' specified in initializer .release = sdt_mm_release, ^ kernel//trace/trace_uprobe.c:948:2: warning: excess elements in struct initializer kernel//trace/trace_uprobe.c:948:2: warning: (near initialization for 'sdt_mmu_notifier_ops') kernel//trace/trace_uprobe.c: In function 'sdt_add_mm_list': >> kernel//trace/trace_uprobe.c:962:22: error: dereferencing pointer to incomplete type mn = kzalloc(sizeof(*mn), GFP_KERNEL); ^ kernel//trace/trace_uprobe.c:966:4: error: dereferencing pointer to incomplete type mn->ops = &sdt_mmu_notifier_ops; ^ >> kernel//trace/trace_uprobe.c:967:2: error: implicit declaration of function '__mmu_notifier_register' [-Werror=implicit-function-declaration] __mmu_notifier_register(mn, mm); ^ cc1: some warnings being treated as errors vim +/__mmu_notifier_register +967 kernel//trace/trace_uprobe.c 946 > 947 static const struct mmu_notifier_ops sdt_mmu_notifier_ops = { > 948 .release = sdt_mm_release, 949 }; 950 951 static void sdt_add_mm_list(struct trace_uprobe *tu, struct mm_struct *mm) 952 { 953 struct mmu_notifier *mn; 954 struct sdt_mm_list *sml = kzalloc(sizeof(*sml), GFP_KERNEL); 955 956 if (!sml) 957 return; 958 sml->mm = mm; 959 list_add(&(sml->list), &(tu->sml.list)); 960 961 /* Register mmu_notifier for this mm. */ > 962 mn = kzalloc(sizeof(*mn), GFP_KERNEL); 963 if (!mn) 964 return; 965 966 mn->ops = &sdt_mmu_notifier_ops; > 967 __mmu_notifier_register(mn, mm); 968 } 969 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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