Jason A. Donenfeld
4635742d1c
crypto: x86/chacha20 - satisfy stack validation 2.0 ...
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 <Jason@zx2c4.com>
Fixes: baa41469a7b9 ("objtool: Implement stack validation 2.0")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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4635742d1c