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Message-Id: <c41cc67321d0b366e356440e6dbc9eceb1babfe4.1583105749.git.stefan@agner.ch>
Date: Mon, 2 Mar 2020 00:37:14 +0100
From: Stefan Agner <stefan@...er.ch>
To: herbert@...dor.apana.org.au, davem@...emloft.net
Cc: linux@...linux.org.uk, manojgupta@...gle.com, jiancai@...gle.com,
linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com,
Stefan Agner <stefan@...er.ch>
Subject: [PATCH] crypto: arm/ghash-ce - define fpu before fpu registers are referenced
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@...er.ch>
---
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
--
2.25.1
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