RE: [PATCH 2/3] leds: add LED Trigger for camera function

From: Kim, Milo
Date: Wed Mar 13 2013 - 19:16:12 EST


> > +#if defined(CONFIG_LEDS_TRIGGER_CAMERA) ||
> defined(CONFIG_LEDS_TRIGGER_CAMERA_MODULE)
> > +extern void ledtrig_flash_ctrl(bool on);
> > +extern void ledtrig_torch_ctrl(bool on);
> > +#else
> > +#define ledtrig_flash_ctrl(x) do {} while(0)
> > +#define ledtrig_torch_ctrl(x) do {} while(0)
>
> It's better don't use #define macros but use real empty functions like
> this:
> static inline void ledtrig_flash_ctrl(bool on)
> {
> return;
> }

I agree, but other trigger functions are declared as do-while definition.
So I would let them unify if it's not critical.
I'd like to have your opinion, which is better.

Thanks,
Milo
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