On 22/11/28 09:50PM, Jisheng Zhang wrote:
> fix below build warning when ELF_CORE=n while COREDUMP=y:
>
> fs/coredump.c:834:12: warning: ‘dump_emit_page’ defined but not used [-Wunused-function]
> 834 | static int dump_emit_page(struct coredump_params *cprm, struct
> page *page)
> | ^~~~~~~~~~~~~~
Fixes: 06bbaa6dc53c: "[coredump] don't use __kernel_write() on kmap_local_page()"
>
> Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxx>
> ---
> fs/coredump.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/fs/coredump.c b/fs/coredump.c
> index 7bad7785e8e6..8663042ebe9c 100644
> --- a/fs/coredump.c
> +++ b/fs/coredump.c
> @@ -831,6 +831,7 @@ static int __dump_skip(struct coredump_params *cprm, size_t nr)
> }
> }
>
> +#ifdef CONFIG_ELF_CORE
Instead of this ^^^, we could even move the definition of dump_emit_page() in
the same #ifdef as of dump_user_range(). Since dump_user_range() is the only
caller of dump_emit_page().
#ifdef CONFIG_ELF_CORE
[here]
int dump_user_range(struct coredump_params *cprm, unsigned long start,
unsigned long len)
{..}
#endif
But I guess that's just a nitpick. Feel free to add:
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx>
-ritesh
> static int dump_emit_page(struct coredump_params *cprm, struct page *page)
> {
> struct bio_vec bvec = {
> @@ -863,6 +864,7 @@ static int dump_emit_page(struct coredump_params *cprm, struct page *page)
>
> return 1;
> }
> +#endif
>
> int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
> {
> --
> 2.37.2
>
