From nobody Wed Dec 17 14:21:47 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B7DD825A659 for ; Wed, 26 Feb 2025 21:38:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740605880; cv=none; b=O8c0Jbx4z4+S+sWi6F8NirUpYRkSJAWJ+JGu7tjyDI3eihVNdI+sHwUZe2sEgcehch0xw2jSC7ZPCWgb9MmeSpcfOl6XYJDlqp0NvP09S5Pv8BGskrwax/sYLjk1bWaJyMvMDuY4TRUyQoUj9CUQvieP50fw99qbMxEKj0c1538= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740605880; c=relaxed/simple; bh=IOxQVnALRKR6nwmNlhLbcO8Dis1BaEtI2yIqJXyBP5w=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=d22EFgs+apX4KJ5mVahBzJIONo0HgblieA8vVdssUVBTL6UYh38fP72wJacNydmD1TKAZgs7aHpXSKkAOTu3xgUpmwg3rcDaksSeOImNBW9TP/GnEQhVzOfIpLMQLmF5moqh5R6YPcXYnBUWoOlZ4eLoggVBIIiLcVSZD18Hrms= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=K4W21VhZ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="K4W21VhZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4FF84C4CEED; Wed, 26 Feb 2025 21:37:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740605880; bh=IOxQVnALRKR6nwmNlhLbcO8Dis1BaEtI2yIqJXyBP5w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=K4W21VhZgJrYaxE9alE/r5v6cKrWD3ezLnm/9XG+b/JWPbuh2K3TY7kHWArOmOHDO PivTHoOVgvG2yxddAR0LeVTY+xxROJFcSNoX77hymIDip58Gu8QpBE1pqabo9NA4gI a2gF7ss47BQT/4+NupWT2VgL9UuHhVncDGp++VaxoF87tGY4yhWVrnRXaqtDejIoxJ xHWaUe6SuPNtel33DgB3QQWz6KB5qNynOWK0PtilP3VtaZdzHn6QGyCA6QMlNx72R0 n39A9D9++Tao/W1NktnnhfiqhSjWoXMGxy/OUU7m4NTvHGNbYP0613MxNq036ntfBH rB59TBQd4E1ew== From: Arnd Bergmann To: linux-kernel@vger.kernel.org, x86@kernel.org Cc: Arnd Bergmann , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Linus Torvalds , Andy Shevchenko , Matthew Wilcox , "Maciej W. Rozycki" Subject: [PATCH v3 10/10] x86: only allow EISA for 32-bit Date: Wed, 26 Feb 2025 22:37:14 +0100 Message-Id: <20250226213714.4040853-11-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250226213714.4040853-1-arnd@kernel.org> References: <20250226213714.4040853-1-arnd@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Arnd Bergmann The CONFIG_EISA menu was cleaned up in 2018, but this inadvertently brought the option back on 64-bit machines: ISA remains guarded by a CONFIG_X86_32 check, but EISA no longer depends on ISA. The last Intel machines ith EISA support used a 82375EB PCI/EISA bridge from 1993 that could be paired with the 440FX chipset on early Pentium-II CPUs, long before the first x86-64 products. Fixes: 6630a8e50105 ("eisa: consolidate EISA Kconfig entry in drivers/eisa") Cc: "Maciej W. Rozycki" Signed-off-by: Arnd Bergmann --- arch/x86/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 14dd7b5abd5d..f84a9e5dda20 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -232,7 +232,7 @@ config X86 select HAVE_SAMPLE_FTRACE_DIRECT_MULTI if X86_64 select HAVE_EBPF_JIT select HAVE_EFFICIENT_UNALIGNED_ACCESS - select HAVE_EISA + select HAVE_EISA if X86_32 select HAVE_EXIT_THREAD select HAVE_GUP_FAST select HAVE_FENTRY if X86_64 || DYNAMIC_FTRACE --=20 2.39.5