Re: [PATCH] dma: ste_dma40: fix unneeded variable warning

[Linus Walleij]

On Fri, Jul 12, 2019 at 11:14 AM Arnd Bergmann <arnd@xxxxxxxx> wrote:

> clang-9 points out that there are two variables that depending on the
> configuration may only be used in an ARRAY_SIZE() expression but not
> referenced:
>
> drivers/dma/ste_dma40.c:145:12: error: variable 'd40_backup_regs' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration]
> static u32 d40_backup_regs[] = {
>            ^
> drivers/dma/ste_dma40.c:214:12: error: variable 'd40_backup_regs_chan' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration]
> static u32 d40_backup_regs_chan[] = {
>
> Mark these __maybe_unused to shut up the warning.
>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Seems like a reasonable fix:
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Yours,
Linus Walleij