From: Stefan Agner stefan@agner.ch
commit 7548bf8c17d84607c106bd45d81834afd95a2edb upstream
Building ARMv7 with Clang's integrated assembler leads to errors such as: arch/arm/crypto/ghash-ce-core.S:34:11: error: register name expected t3l .req d16 ^
Since no FPU has selected yet Clang considers d16 not a valid register. Moving the FPU directive on-top allows Clang to parse the registers and allows to successfully build this file with Clang's integrated assembler.
Signed-off-by: Stefan Agner stefan@agner.ch Reviewed-by: Nick Desaulniers ndesaulniers@google.com Tested-by: Nick Desaulniers ndesaulniers@google.com Acked-by: Ard Biesheuvel ardb@kernel.org Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Florian Fainelli f.fainelli@gmail.com --- arch/arm/crypto/ghash-ce-core.S | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/arm/crypto/ghash-ce-core.S b/arch/arm/crypto/ghash-ce-core.S index 534c9647726d..9f51e3fa4526 100644 --- a/arch/arm/crypto/ghash-ce-core.S +++ b/arch/arm/crypto/ghash-ce-core.S @@ -8,6 +8,9 @@ #include <linux/linkage.h> #include <asm/assembler.h>
+ .arch armv8-a + .fpu crypto-neon-fp-armv8 + SHASH .req q0 T1 .req q1 XL .req q2 @@ -88,8 +91,6 @@ T3_H .req d17
.text - .arch armv8-a - .fpu crypto-neon-fp-armv8
.macro __pmull_p64, rd, rn, rm, b1, b2, b3, b4 vmull.p64 \rd, \rn, \rm