Re: [PATCH] Revert "spi: bitbang: only toggle bitchanges"

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On Fri, Jul 24, 2015 at 01:55:30PM +0200, Lars-Peter Clausen wrote:
> On 07/24/2015 01:48 PM, Lars Persson wrote:

> >No this is a misunderstanding about the semantics of the bool type.
> >When assigning to the bool any non-zero value becomes 1.
> >When comparing an integer against the bool, the bool is promoted to an
> >integer.

> From the patch context alone it is not clear that oldbit is of type bool. I
> think this is where the confusion came from. By just looking at the path
> fragment itself you'd think that oldbit is a unsigned int given its usage
> pattern. But it becomes obvious that the code wont work if you know oldbit
> is a bool.

...and obviously the clear intention is that it should be an unsigned
integer so the appropriate thing to do is to fix that.

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