tree a5b78c49b6286a2d189c56da289a2b2a9b79329a
parent 3ed7b4d67c6745300c9b5c6baa55da1161b57f60
author Josh Poimboeuf <jpoimboe@redhat.com> 1505763725 -0500
committer Herbert Xu <herbert@gondor.apana.org.au> 1505900554 +0800

crypto: x86/sha1-avx2 - Fix RBP usage

Using RBP as a temporary register breaks frame pointer convention and
breaks stack traces when unwinding from an interrupt in the crypto code.

Use R11 instead of RBP.  Since R11 isn't a callee-saved register, it
doesn't need to be saved and restored on the stack.

Reported-by: Eric Biggers <ebiggers@google.com>
Reported-by: Peter Zijlstra <peterz@infradead.org>
Tested-by: Eric Biggers <ebiggers@google.com>
Acked-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>