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crypto: arm64/sha2-ce - fix for big endian

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commit 174122c39c upstream.

The SHA256 digest is an array of 8 32-bit quantities, so we should refer
to them as such in order for this code to work correctly when built for
big endian. So replace 16 byte scalar loads and stores with 4x32 vector
ones where appropriate.

Fixes: 6ba6c74dfc ("arm64/crypto: SHA-224/SHA-256 using ARMv8 Crypto Extensions")
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ard Biesheuvel
2016-10-11 19:15:16 +01:00
committed by Greg Kroah-Hartman
parent a05aa258b2
commit cdeaed7dda
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/crypto/sha2-ce-core.S
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@@ -85,7 +85,7 @@ ENTRY(sha2_ce_transform)
ld1 {v12.4s-v15.4s}, [x8]
/* load state */
ldp dga, dgb, [x0]
ld1 {dgav.4s, dgbv.4s}, [x0]
/* load sha256_ce_state::finalize */
ldr w4, [x0, #:lo12:sha256_ce_offsetof_finalize]
@@ -148,6 +148,6 @@ CPU_LE( rev32 v19.16b, v19.16b )
b 1b
/* store new state */
3: stp dga, dgb, [x0]
3: st1 {dgav.4s, dgbv.4s}, [x0]
ret
ENDPROC(sha2_ce_transform)