linux-kernel - [PATCH 4/4] x86: Remove CONFIG_AS

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Message-ID: <20250819085855.333380-4-ubizjak@gmail.com>
Date: Tue, 19 Aug 2025 10:57:52 +0200
From: Uros Bizjak <ubizjak@...il.com>
To: linux-crypto@...r.kernel.org,
	x86@...nel.org,
	linux-kernel@...r.kernel.org
Cc: Uros Bizjak <ubizjak@...il.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: [PATCH 4/4] x86: Remove CONFIG_AS_AVX512

Commit 5f5305dea066 ("raid6: skip avx512 checks") and commit
bc23fe6dc172 ("crypto: x86 - Remove CONFIG_AS_AVX512 handling")
removed all uses of CONFIG_AS_AVX512.

Remove check for assembler support of AVX-512 instructions.

Signed-off-by: Uros Bizjak <ubizjak@...il.com>
Cc: Herbert Xu <herbert@...dor.apana.org.au>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
---
 arch/x86/Kconfig.assembler | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/x86/Kconfig.assembler b/arch/x86/Kconfig.assembler
index ea0e9dfdfc5c..b1c59fb0a4c9 100644
--- a/arch/x86/Kconfig.assembler
+++ b/arch/x86/Kconfig.assembler
@@ -1,11 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 # Copyright (C) 2020 Jason A. Donenfeld <Jason@...c4.com>. All Rights Reserved.
 
-config AS_AVX512
-	def_bool $(as-instr,vpmovm2b %k1$(comma)%zmm5)
-	help
-	  Supported by binutils >= 2.25 and LLVM integrated assembler
-
 config AS_WRUSS
 	def_bool $(as-instr64,wrussq %rax$(comma)(%rbx))
 	help
-- 
2.50.1