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Message-Id: <20220629180227.3408104-12-f.fainelli@gmail.com>
Date: Wed, 29 Jun 2022 11:02:27 -0700
From: Florian Fainelli <f.fainelli@...il.com>
To: stable@...r.kernel.org
Cc: Stefan Agner <stefan@...er.ch>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Ard Biesheuvel <ardb@...nel.org>,
Herbert Xu <herbert@...dor.apana.org.au>,
Florian Fainelli <f.fainelli@...il.com>,
Russell King <linux@...linux.org.uk>,
"David S. Miller" <davem@...emloft.net>,
Tony Lindgren <tony@...mide.com>,
Hans Ulli Kroll <ulli.kroll@...glemail.com>,
Nicolas Pitre <nico@...xnic.net>,
Andre Przywara <andre.przywara@....com>,
"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Catalin Marinas <catalin.marinas@....com>,
Jian Cai <caij2003@...il.com>,
linux-arm-kernel@...ts.infradead.org (moderated list:ARM PORT),
linux-kernel@...r.kernel.org (open list),
linux-crypto@...r.kernel.org (open list:CRYPTO API),
linux-omap@...r.kernel.org (open list:OMAP2+ SUPPORT),
clang-built-linux@...glegroups.com (open list:CLANG/LLVM BUILD SUPPORT),
Sasha Levin <sashal@...nel.org>
Subject: [PATCH stable 5.4 11/11] crypto: arm/ghash-ce - define fpu before fpu registers are referenced
From: Stefan Agner <stefan@...er.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@...er.ch>
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>
Tested-by: Nick Desaulniers <ndesaulniers@...gle.com>
Acked-by: Ard Biesheuvel <ardb@...nel.org>
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
Signed-off-by: Florian Fainelli <f.fainelli@...il.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
--
2.25.1
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