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SubjectRe: [PATCH] chacha20-ssse3/avx2: satisfy stack validation 2.0
On Sun, Oct 08, 2017 at 10:50:53PM +0200, Jason A. Donenfeld wrote:
> The new stack validator in objdump doesn't like directly assigning r11
> to rsp, warning with something like:
> warning: objtool: chacha20_4block_xor_ssse3()+0xa: unsupported stack pointer realignment
> warning: objtool: chacha20_8block_xor_avx2()+0x6: unsupported stack pointer realignment
> This fixes things up to use code similar to gcc's DRAP register, so that
> objdump remains happy.
> Signed-off-by: Jason A. Donenfeld <>
> Fixes: baa41469a7b9 ("objtool: Implement stack validation 2.0")

Patch applied. Thanks.
Email: Herbert Xu <>
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