Re: [PATCH] decompressor: provide missing prototypes

[Andrew Morton]

On Wed, 17 May 2023 15:19:31 +0200 Arnd Bergmann <arnd@xxxxxxxxxx> wrote:

> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> The entry points for the decompressor don't always have a prototype
> included in the .c file:
> 
> lib/decompress_inflate.c:42:17: error: no previous prototype for '__gunzip' [-Werror=missing-prototypes]
> lib/decompress_unxz.c:251:17: error: no previous prototype for 'unxz' [-Werror=missing-prototypes]
> lib/decompress_unzstd.c:331:17: error: no previous prototype for 'unzstd' [-Werror=missing-prototypes]
> 
> include the correct headers for unxz and unzstd, and mark the
> inflate function above as unconditionally 'static' to avoid
> these warnings.

These are errors, not warnings?

Under what circumstances do they occur?

Shouldn't we cc:stable?  If so, do we have a suitable Fixes: target?