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    SubjectRe: [PATCH 01/04] Adding cipher mode context information to crypto_tfm
    On Tue, 2005-02-08 at 18:30 -0500, James Morris wrote:
    > On Tue, 8 Feb 2005, Fruhwirth Clemens wrote:
    > > I shot out the last patch too quickly. Having reviewed the mapping one
    > > more time I noticed, that there as the possibility of "off-by-one"
    > > unmapping, and instead of doing doubtful guesses, if that's the case, I
    > > added a base pointer to scatter_walk, which is the pointer returned by
    > > kmap. Exactly this pointer will be unmapped again, so the vaddr
    > > comparison in crypto_kunmap doesn't have to do any masking.
    > You can't call kmap() in softirq context (why was it even trying?):

    Why not? What's the alternative, then?

    Fruhwirth Clemens <>
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