* [PATCH] mm: fix -Wmissing-prototypes warnings
@ 2019-08-28 7:42 Yi Wang
2019-09-09 0:47 ` wang.yi59
2019-09-09 7:52 ` [PATCH] " David Hildenbrand
0 siblings, 2 replies; 4+ messages in thread
From: Yi Wang @ 2019-08-28 7:42 UTC (permalink / raw)
To: akpm
Cc: keescook, dan.j.williams, wang.yi59, cai, linux-mm, linux-kernel,
osalvador, mhocko, rppt, david, richardw.yang, xue.zhihong,
up2wing, wang.liang82
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
^ permalink raw reply [flat|nested] 4+ messages in thread* Re:[PATCH] mm: fix -Wmissing-prototypes warnings
2019-08-28 7:42 [PATCH] mm: fix -Wmissing-prototypes warnings Yi Wang
@ 2019-09-09 0:47 ` wang.yi59
2019-09-09 7:52 ` [PATCH] " David Hildenbrand
1 sibling, 0 replies; 4+ messages in thread
From: wang.yi59 @ 2019-09-09 0:47 UTC (permalink / raw)
To: akpm
Cc: keescook, dan.j.williams, cai, linux-mm, linux-kernel, osalvador,
mhocko, rppt, david, richardw.yang, xue.zhihong, up2wing,
wang.liang82, wang.yi59
[-- Attachment #1.1: Type: text/plain, Size: 1466 bytes --]
Gentle ping :)
> 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
---
Best wishes
Yi Wang
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] mm: fix -Wmissing-prototypes warnings
2019-08-28 7:42 [PATCH] mm: fix -Wmissing-prototypes warnings Yi Wang
2019-09-09 0:47 ` wang.yi59
@ 2019-09-09 7:52 ` David Hildenbrand
2019-09-23 23:20 ` Kees Cook
1 sibling, 1 reply; 4+ messages in thread
From: David Hildenbrand @ 2019-09-09 7:52 UTC (permalink / raw)
To: Yi Wang, akpm
Cc: keescook, dan.j.williams, cai, linux-mm, linux-kernel, osalvador,
mhocko, rppt, richardw.yang, xue.zhihong, up2wing, wang.liang82
On 28.08.19 09:42, Yi Wang wrote:
> 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);
>
Reviewed-by: David Hildenbrand <david@redhat.com>
--
Thanks,
David / dhildenb
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] mm: fix -Wmissing-prototypes warnings
2019-09-09 7:52 ` [PATCH] " David Hildenbrand
@ 2019-09-23 23:20 ` Kees Cook
0 siblings, 0 replies; 4+ messages in thread
From: Kees Cook @ 2019-09-23 23:20 UTC (permalink / raw)
To: David Hildenbrand
Cc: Yi Wang, akpm, dan.j.williams, cai, linux-mm, linux-kernel,
osalvador, mhocko, rppt, richardw.yang, xue.zhihong, up2wing,
wang.liang82
On Mon, Sep 09, 2019 at 09:52:40AM +0200, David Hildenbrand wrote:
> On 28.08.19 09:42, Yi Wang wrote:
> > 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);
> >
>
> Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Andrew, can you take this?
--
Kees Cook
^ permalink raw reply [flat|nested] 4+ messages in thread
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2019-08-28 7:42 [PATCH] mm: fix -Wmissing-prototypes warnings Yi Wang
2019-09-09 0:47 ` wang.yi59
2019-09-09 7:52 ` [PATCH] " David Hildenbrand
2019-09-23 23:20 ` Kees Cook
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