[PATCH] mm: fix -Wmissing-prototypes warnings

Yi Wang
2019-08-28T07:44:29Z

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 function static to fix this.

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
---
mm/shuffle.c | 2 +-
mm/sparse.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/shuffle.c b/mm/shuffle.c
index 3ce1248..b3fe97f 100644
--- 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
index 72f010d..49006dd 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -217,7 +217,7 @@ 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);
--
1.8.3.1