On Wed, 2015-05-20 at 11:30 -0700, josh@xxxxxxxxxxxxxxxx wrote:
> In net/rfkill/Kconfig, RFKILL_REGULATOR oddly has
> "depends on RFKILL || !RFKILL". WIMAX does the same thing.
That's only tristate logic. It's a common idiom, but it looks very odd
compared to boolean logic. It ensures RFKILL_REGULATOR will not be 'y'
if RFKILL is 'm'. Because:
RFKILL = 'n' => RFKILL_REGULATOR = 'n' || 'm' || 'y'
RFKILL = 'm' => RFKILL_REGULATOR = 'n' || 'm'
RFKILL = 'y' => RFKILL_REGULATOR = 'n' || 'm' || 'y'
Hope this helps,
Paul Bolle
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