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-.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. commit 5ba239ae2c4aba42052d6d20e8961a5a283b19fc Author: Stefan Agner <stefan@xxxxxxxx> Date: Mon Mar 2 00:37:14 2020 +0100 crypto: arm/ghash-ce - define fpu before fpu registers are referenced 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: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> 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