Re: [Xen-devel] [PATCH] x86/compat: correct SMEP/SMAP NOPs patching

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 25/05/16 16:00, Jan Beulich wrote:
> Correct the number of single byte NOPs we want to be replaced in case
> neither SMEP nor SMAP are available.
>
> Also simplify the expression adding these NOPs - at that location .
> equals .Lcr4_orig, and removing that part of the expression fixes a
> bogus ".space or fill with negative value, ignored" warning by very old
> gas (which actually is what made me look at those constructs again).
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

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