[PATCH] pwm: stm32: fix build warning with CONFIG_DMA_ENGINE disabled

[thierry.reding@gmail.com (Thierry Reding)]

On Fri, May 25, 2018 at 11:08:30PM +0200, Arnd Bergmann wrote:
> Without dmaengine support, we get a harmless warning about an
> unused function:
> 
> drivers/pwm/pwm-stm32.c:166:12: error: 'stm32_pwm_capture' defined but not used [-Werror=unused-function]
> 
> Changing the #ifdef to an IS_ENABLED() check shuts up that warning
> and is slightly nicer to read.
> 
> Fixes: 53e38fe73f94 ("pwm: stm32: Add capture support")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  drivers/pwm/pwm-stm32.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)

Applied, thanks.

Lee, I applied this on top of your immutable MFD/PWM branch because it
depends on the capture support that you applied. I wasn't sure what your
PR timing was going to be, so I thought I'd do it this way since I'm
pulling in some last minute fixes for v4.18.

Thierry
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