crypto: arm/aes-neonbs - fix issue with v2.22 and older assembler
The GNU assembler for ARM version 2.22 or older fails to infer the
element size from the vmov instructions, and aborts the build in
the following way;
.../aes-neonbs-core.S: Assembler messages:
.../aes-neonbs-core.S:817: Error: bad type for scalar -- `vmov q1h[1],r10'
.../aes-neonbs-core.S:817: Error: bad type for scalar -- `vmov q1h[0],r9'
.../aes-neonbs-core.S:817: Error: bad type for scalar -- `vmov q1l[1],r8'
.../aes-neonbs-core.S:817: Error: bad type for scalar -- `vmov q1l[0],r7'
.../aes-neonbs-core.S:818: Error: bad type for scalar -- `vmov q2h[1],r10'
.../aes-neonbs-core.S:818: Error: bad type for scalar -- `vmov q2h[0],r9'
.../aes-neonbs-core.S:818: Error: bad type for scalar -- `vmov q2l[1],r8'
.../aes-neonbs-core.S:818: Error: bad type for scalar -- `vmov q2l[0],r7'
Fix this by setting the element size explicitly, by replacing vmov with
vmov.32.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/arch/arm/crypto/aes-neonbs-core.S b/arch/arm/crypto/aes-neonbs-core.S
index c947704..12da247 100644
--- a/arch/arm/crypto/aes-neonbs-core.S
+++ b/arch/arm/crypto/aes-neonbs-core.S
@@ -766,13 +766,13 @@
ENDPROC(aesbs_cbc_decrypt)
.macro next_ctr, q
- vmov \q\()h[1], r10
+ vmov.32 \q\()h[1], r10
adds r10, r10, #1
- vmov \q\()h[0], r9
+ vmov.32 \q\()h[0], r9
adcs r9, r9, #0
- vmov \q\()l[1], r8
+ vmov.32 \q\()l[1], r8
adcs r8, r8, #0
- vmov \q\()l[0], r7
+ vmov.32 \q\()l[0], r7
adc r7, r7, #0
vrev32.8 \q, \q
.endm