crypto: x86/sha256 - Add parentheses around macros' single arguments

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[ Upstream commit 3363c460ef ]

The macros FOUR_ROUNDS_AND_SCHED and DO_4ROUNDS rely on an
unexpected/undocumented behavior of the GNU assembler, which might
change in the future
(https://sourceware.org/bugzilla/show_bug.cgi?id=32073).

    M (1) (2) // 1 arg !? Future: 2 args
    M 1 + 2   // 1 arg !? Future: 3 args

    M 1 2     // 2 args

Add parentheses around the single arguments to support future GNU
assembler and LLVM integrated assembler (when the IsOperator hack from
the following link is dropped).

Link: 055006475e
Signed-off-by: Fangrui Song <maskray@google.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Fangrui Song 2024-08-13 21:48:02 -07:00 • committed by Greg Kroah-Hartman

parent e37e348835

commit 6300199be3

1 changed files with 8 additions and 8 deletions

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arch/x86/crypto/sha256-avx2-asm.S

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