This is a note to let you know that I've just added the patch titled
crypto: arm/ghash-ce - define fpu before fpu registers are referenced
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
crypto-arm-ghash-ce-define-fpu-before-fpu-registers-are-referenced.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Jun 30 03:27:07 PM CEST 2022
From: Florian Fainelli <f.fainelli@xxxxxxxxx>
Date: Wed, 29 Jun 2022 11:02:27 -0700
Subject: crypto: arm/ghash-ce - define fpu before fpu registers are referenced
To: stable@xxxxxxxxxxxxxxx
Cc: Stefan Agner <stefan@xxxxxxxx>, Nick Desaulniers <ndesaulniers@xxxxxxxxxx>, Ard Biesheuvel <ardb@xxxxxxxxxx>, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>, Florian Fainelli <f.fainelli@xxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Tony Lindgren <tony@xxxxxxxxxxx>, Hans Ulli Kroll <ulli.kroll@xxxxxxxxxxxxxx>, Nicolas Pitre <nico@xxxxxxxxxxx>, Andre Przywara <andre.przywara@xxxxxxx>, "Russell King (Oracle)" <rmk+kernel@xxxxxxxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Jian Cai <caij2003@xxxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx (moderated list:ARM PORT), linux-kernel@xxxxxxxxxxxxxxx (open list), linux-crypto@xxxxxxxxxxxxxxx (open list:CRYPTO API), linux-omap@xxxxxxxxxxxxxxx (open list:OMAP2+ SUPPORT), clang-built-linux@xxxxxxxxxxxxxxxx (open list:CLANG/LLVM BUILD SUPPORT), Sasha Levin <sashal@xxxxxxxxxx>
Message-ID: <20220629180227.3408104-12-f.fainelli@xxxxxxxxx>
From: Stefan Agner <stefan@xxxxxxxx>
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@xxxxxxxx>
Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Tested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Acked-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/crypto/ghash-ce-core.S | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- 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
Patches currently in stable-queue which might be from f.fainelli@xxxxxxxxx are
queue-5.4/arm-8971-1-replace-the-sole-use-of-a-symbol-with-its-definition.patch
queue-5.4/arm-omap2-drop-unnecessary-adrl.patch
queue-5.4/arm-8933-1-replace-sun-solaris-style-flag-on-section-directive.patch
queue-5.4/crypto-arm-sha256-neon-avoid-adrl-pseudo-instruction.patch
queue-5.4/arm-9029-1-make-iwmmxt.s-support-clang-s-integrated-assembler.patch
queue-5.4/net-mscc-ocelot-allow-unregistered-ip-multicast-flooding.patch
queue-5.4/crypto-arm-sha512-neon-avoid-adrl-pseudo-instruction.patch
queue-5.4/arm-8989-1-use-.fpu-assembler-directives-instead-of-assembler-arguments.patch
queue-5.4/crypto-arm-ghash-ce-define-fpu-before-fpu-registers-are-referenced.patch
queue-5.4/arm-8929-1-use-apsr_nzcv-instead-of-r15-as-mrc-operand.patch
queue-5.4/crypto-arm-use-kconfig-based-compiler-checks-for-crypto-opcodes.patch
queue-5.4/arm-8990-1-use-vfp-assembler-mnemonics-in-register-load-store-macros.patch
