4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
commit 9c433ad5083fd4a4a3c721d86cbfbd0b2a2326a5 upstream.
The GHASH key and digest are both pairs of 64-bit quantities, but the
GHASH code does not always refer to them as such, causing failures when
built for big endian. So replace the 16x1 loads and stores with 2x8 ones.
Fixes: b913a6404ce2 ("arm64/crypto: improve performance of GHASH algorithm")
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/crypto/ghash-ce-core.S | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/arm64/crypto/ghash-ce-core.S
+++ b/arch/arm64/crypto/ghash-ce-core.S
@@ -29,8 +29,8 @@
* struct ghash_key const *k, const char *head)
*/
ENTRY(pmull_ghash_update)
- ld1 {SHASH.16b}, [x3]
- ld1 {XL.16b}, [x1]
+ ld1 {SHASH.2d}, [x3]
+ ld1 {XL.2d}, [x1]
movi MASK.16b, #0xe1
ext SHASH2.16b, SHASH.16b, SHASH.16b, #8
shl MASK.2d, MASK.2d, #57
@@ -74,6 +74,6 @@ CPU_LE( rev64 T1.16b, T1.16b )
cbnz w0, 0b
- st1 {XL.16b}, [x1]
+ st1 {XL.2d}, [x1]
ret
ENDPROC(pmull_ghash_update)
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