Matthew Wilcox wrote:
> On Thu, Feb 05, 2009 at 11:47:36AM +0900, Hidetoshi Seto wrote:
>> This patch fix the wrong array in the msi_mask().
>
> Quite correct. While disconnected for a couple of weeks, I also
> considered this possible fix:
>
> static inline __attribute_const__ u32 msi_mask(unsigned x)
> {
> /* Don't shift by >= width of type */
> if (x >= 5)
> return 0xffffffff;
> return (1 << (1 << x)) - 1;
> }
>
> which has the added bonus of not running off the end of the array if
> some device has a bogus value in its config space.
>
> What do you think?
Yeah, I think it's better one.
I'm going to post a revised patch hiring this style.
Thanks,
H.Seto
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