Subject: [PATCH 05/15] crypto: arm/ghash-ce - define fpu before fpu registers are referenced

From: Stefan Agner <[email-masked]>
Date: Mon, 2 Mar 2020 00:37:14 +0100

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 <[email-masked]>
Reviewed-by: Nick Desaulniers <[email-masked]>
Tested-by: Nick Desaulniers <[email-masked]>
Acked-by: Ard Biesheuvel <[email-masked]>
Signed-off-by: Herbert Xu <[email-masked]>
Signed-off-by: Nick Desaulniers <[email-masked]>
---
 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
-- 
2.31.0.rc2.261.g7f71774620-goog