On 07/03/2019 12.11, Arnd Bergmann wrote:
> Building with clang shows a variable that is only used by the
> suspend/resume functions but defined outside of their #ifdef block:
>
> sound/soc/ti/davinci-mcasp.c:48:12: error: variable 'context_regs' is not
> needed and will not be emitted
>
> We commonly fix these by marking the PM functions as __maybe_unused,
> but here that would grow the davinci_mcasp structure, so instead
> add another #ifdef here.
Acked-by: Peter Ujfalusi <[email protected]>
> Fixes: 1cc0c054f380 ("ASoC: davinci-mcasp: Convert the context save/restore
> to use array")
> Signed-off-by: Arnd Bergmann <[email protected]>
> ---
> sound/soc/ti/davinci-mcasp.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c
> index a3a67a8f0f54..9fbc759fdefe 100644
> --- a/sound/soc/ti/davinci-mcasp.c
> +++ b/sound/soc/ti/davinci-mcasp.c
> @@ -45,6 +45,7 @@
>
> #define MCASP_MAX_AFIFO_DEPTH 64
>
> +#ifdef CONFIG_PM
> static u32 context_regs[] = {
> DAVINCI_MCASP_TXFMCTL_REG,
> DAVINCI_MCASP_RXFMCTL_REG,
> @@ -68,6 +69,7 @@ struct davinci_mcasp_context {
> u32 *xrsr_regs; /* for serializer configuration */
> bool pm_state;
> };
> +#endif
>
> struct davinci_mcasp_ruledata {
> struct davinci_mcasp *mcasp;
>
- Péter
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