mm: fix -Wmissing-prototypes warnings

We get two warnings when build kernel W=1: mm/shuffle.c:36:12: warning: no previous prototype for `shuffle_show' [-Wmissing-prototypes] mm/sparse.c:220:6: warning: no previous prototype for `subsection_mask_set' [-Wmissing-prototypes] Make the functions static to fix this. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Yi Wang <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Reviewed-by: Kees Cook <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
akvadrako · Oct 7, 2019 · 758b8db · 758b8db
1 parent 8e00c4e
commit 758b8db
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diff --git a/mm/shuffle.c b/mm/shuffle.c
@@ -33,7 +33,7 @@ __meminit void page_alloc_shuffle(enum mm_shuffle_ctl ctl)
 }
 
 static bool shuffle_param;
-extern int shuffle_show(char *buffer, const struct kernel_param *kp)
+static int shuffle_show(char *buffer, const struct kernel_param *kp)
 {
 	return sprintf(buffer, "%c\n", test_bit(SHUFFLE_ENABLE, &shuffle_state)
 			? 'Y' : 'N');

diff --git a/mm/sparse.c b/mm/sparse.c
@@ -219,7 +219,7 @@ static inline unsigned long first_present_section_nr(void)
 	return next_present_section_nr(-1);
 }
 
-void subsection_mask_set(unsigned long *map, unsigned long pfn,
+static void subsection_mask_set(unsigned long *map, unsigned long pfn,
 		unsigned long nr_pages)
 {
 	int idx = subsection_map_index(pfn);