Re: [PATCH 1/3] spi: fix undefined behaviour in SPI_BPW_RANGE_MASK
From: Mark Brown
Date: Sat Jun 01 2013 - 14:47:34 EST
On Thu, May 30, 2013 at 09:59:39AM -0600, Stephen Warren wrote:
> From: Stephen Warren <swarren@xxxxxxxxxx>
>
> The parameters to SPI_BPW_RANGE_MASK() are in the range 1..32. If 32 is
> used as a parameter, part of the expression is "1 << 32". Since 32 is >=
> the size of the type in use, such a shift is undefined behaviour. Add
Applied all, thanks.
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