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SubjectRe: [PATCH] mm/filemap: add static for function __add_to_page_cache_locked
On Fri, Nov 6, 2020 at 4:55 PM Alex Shi <alex.shi@linux.alibaba.com> wrote:
>
> Otherwise it cause gcc warning:
> ^~~~~~~~~~~~~~~
> ../mm/filemap.c:830:14: warning: no previous prototype for
> ‘__add_to_page_cache_locked’ [-Wmissing-prototypes]
> noinline int __add_to_page_cache_locked(struct page *page,
> ^~~~~~~~~~~~~~~~~~~~~~~~~~

Is CONFIG_DEBUG_INFO_BTF enabled in your .config ?

>
> Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: linux-mm@kvack.org
> Cc: linux-kernel@vger.kernel.org
> ---
> mm/filemap.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/filemap.c b/mm/filemap.c
> index d90614f501da..249cf489f5df 100644
> --- a/mm/filemap.c
> +++ b/mm/filemap.c
> @@ -827,7 +827,7 @@ int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask)
> }
> EXPORT_SYMBOL_GPL(replace_page_cache_page);
>
> -noinline int __add_to_page_cache_locked(struct page *page,
> +static noinline int __add_to_page_cache_locked(struct page *page,
> struct address_space *mapping,
> pgoff_t offset, gfp_t gfp,
> void **shadowp)
> --
> 1.8.3.1
>
>

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