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    SubjectRe: [REGRESSION][PATCH V4 2/3] bpf jit: Let the x86 jit handle negative offsets
    From
    From: Jan Seiffert <kaffeemonster@googlemail.com>
    Date: Fri, 30 Mar 2012 17:24:05 +0200

    > Now the helper function from filter.c for negative offsets is exported,
    > it can be used it in the jit to handle negative offsets.
    >
    > First modify the asm load helper functions to handle:
    > - know positive offsets
    > - know negative offsets
    > - any offset
    >
    > then the compiler can be modified to explicitly use these helper
    > when appropriate.
    >
    > This fixes the case of a negative X register and allows to lift
    > the restriction that bpf programs with negative offsets can't
    > be jited.
    >
    > Signed-of-by: Jan Seiffert <kaffeemonster@googlemail.com>

    Applied, but with trailing empty lines removed:

    > diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S
    > index 6687022..2897d7f 100644
    > --- a/arch/x86/net/bpf_jit.S
    > +++ b/arch/x86/net/bpf_jit.S
    > + ret
    > +

    There.


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