[OS-BUILD PATCH] Fix gcc 12 warning address of 'mem_section' will never be NULL

From: Justin M. Forbes <jforbes(a)fedoraproject.org&gt; Fix gcc 12 warning address of 'mem_section' will never be NULL Signed-off-by: Justin M. Forbes <jforbes(a)fedoraproject.org&gt; diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index blahblah..blahblah 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -1390,11 +1390,9 @@ static inline unsigned long *section_to_usemap(struct mem_section *ms) static inline struct mem_section *__nr_to_section(unsigned long nr) { #ifdef CONFIG_SPARSEMEM_EXTREME - if (!mem_section) + if (!mem_section || !mem_section[SECTION_NR_TO_ROOT(nr)]) return NULL; #endif - if (!mem_section[SECTION_NR_TO_ROOT(nr)]) - return NULL; return &mem_section[SECTION_NR_TO_ROOT(nr)][nr & SECTION_ROOT_MASK]; } extern size_t mem_section_usage_size(void); -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1598