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[v1,1/1] PM: hibernate: Remove unused stub for saveable_highmem_page()

Message ID 20240905184848.318978-1-andriy.shevchenko@linux.intel.com
State Accepted
Commit c3565a35d97102fbea69e324086d5e33ee2ab34e
Headers show
Series [v1,1/1] PM: hibernate: Remove unused stub for saveable_highmem_page() | expand

Commit Message

Andy Shevchenko Sept. 5, 2024, 6:48 p.m. UTC
When saveable_highmem_page() is unused, it prevents kernel builds
with clang, `make W=1` and CONFIG_WERROR=y:

kernel/power/snapshot.c:1369:21: error: unused function 'saveable_highmem_page' [-Werror,-Wunused-function]
 1369 | static inline void *saveable_highmem_page(struct zone *z, unsigned long p)
      |                     ^~~~~~~~~~~~~~~~~~~~~

Fix this by removing unused stub.

See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
inline functions for W=1 build").

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 kernel/power/snapshot.c | 5 -----
 1 file changed, 5 deletions(-)

Comments

Rafael J. Wysocki Sept. 10, 2024, 6:17 p.m. UTC | #1
On Thu, Sep 5, 2024 at 8:48 PM Andy Shevchenko
<andriy.shevchenko@linux.intel.com> wrote:
>
> When saveable_highmem_page() is unused, it prevents kernel builds
> with clang, `make W=1` and CONFIG_WERROR=y:
>
> kernel/power/snapshot.c:1369:21: error: unused function 'saveable_highmem_page' [-Werror,-Wunused-function]
>  1369 | static inline void *saveable_highmem_page(struct zone *z, unsigned long p)
>       |                     ^~~~~~~~~~~~~~~~~~~~~
>
> Fix this by removing unused stub.
>
> See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
> inline functions for W=1 build").
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  kernel/power/snapshot.c | 5 -----
>  1 file changed, 5 deletions(-)
>
> diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
> index 405eddbda4fc..30894d8f0a78 100644
> --- a/kernel/power/snapshot.c
> +++ b/kernel/power/snapshot.c
> @@ -1365,11 +1365,6 @@ static unsigned int count_highmem_pages(void)
>         }
>         return n;
>  }
> -#else
> -static inline void *saveable_highmem_page(struct zone *z, unsigned long p)
> -{
> -       return NULL;
> -}
>  #endif /* CONFIG_HIGHMEM */
>
>  /**
> --

Applied as 6.12 material, thanks!
diff mbox series

Patch

diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 405eddbda4fc..30894d8f0a78 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -1365,11 +1365,6 @@  static unsigned int count_highmem_pages(void)
 	}
 	return n;
 }
-#else
-static inline void *saveable_highmem_page(struct zone *z, unsigned long p)
-{
-	return NULL;
-}
 #endif /* CONFIG_HIGHMEM */
 
 /**