Hi Herbert,
On Monday 10 September 2007, Herbert Xu wrote:
> On Sat, Sep 08, 2007 at 12:14:23PM +0800, Herbert Xu wrote:
> >
> > [CRYPTO] blkcipher: Fix handling of kmalloc page straddling
>
> As Bob correctly noted, I had the boolean test inverted.
> Here is the correction:
>
> [CRYPTO] blkcipher: Fix inverted test in blkcipher_get_spot
>
> The previous patch had the conditional inverted. This patch fixes it
> so that we return the original position if it does not straddle a page.
What about using max() for this to make your intention obvious?
static inline u8 *blkcipher_get_spot(u8 *start, unsigned int len)
{
u8 *end_page = (u8 *)(((unsigned long)(start + len - 1)) & PAGE_MASK);
return max(start, end_page);
}
Best Regards
Ingo Oeser
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