From nobody Mon Sep 15 18:02:40 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08862C678D7 for ; Wed, 11 Jan 2023 17:21:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238417AbjAKRVL (ORCPT ); Wed, 11 Jan 2023 12:21:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234749AbjAKRU4 (ORCPT ); Wed, 11 Jan 2023 12:20:56 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A8E4AE26; Wed, 11 Jan 2023 09:20:54 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 469BC61D9E; Wed, 11 Jan 2023 17:20:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 62672C433F1; Wed, 11 Jan 2023 17:20:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1673457653; bh=XfFLNWhAd8k4qxV8rXLEBaM1QQgAKaJ6LOhZRHyHg+Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=muCp1adDcrT3TviFaKXdg0Pic8fXJRdvzrirnhFO1zFdeYWn/dET9sP7d1RdUdFAp DWxW08xXfBBtPd1rb+d48sLNkQQPnmss5DhciXz35D4n8UHO1DE1JhNEGLkAKHE6Ah taBSW9mbljzQvG+6oD+fvAHKEKilx/yD8HaAvHvgMPbQAEbjKvGzZEEIvHXTQUX+EE GJNrEsSIE5bWQtkY0U7nD1VanPzihUX3CuDncZoPfDPiG1gtMhGXnBxxQlPtONq+r1 5jLS2amJ5VeyhyBDjO5dH5DSMV6q4r8JBsdz9yhre14+cpSkEmEE43VsFskr8J5qEj wx7SU9f2rQEkg== From: Jisheng Zhang To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Anup Patel , Atish Patra , Heiko Stuebner Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, Andrew Jones Subject: [PATCH v3 03/13] riscv: cpufeature: detect RISCV_ALTERNATIVES_EARLY_BOOT earlier Date: Thu, 12 Jan 2023 01:10:17 +0800 Message-Id: <20230111171027.2392-4-jszhang@kernel.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230111171027.2392-1-jszhang@kernel.org> References: <20230111171027.2392-1-jszhang@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Currently riscv_cpufeature_patch_func() does nothing at the RISCV_ALTERNATIVES_EARLY_BOOT stage. Add a check to detect whether we are in this stage and exit early. This will allow us to use riscv_cpufeature_patch_func() for scanning of all ISA extensions. Signed-off-by: Jisheng Zhang Reviewed-by: Andrew Jones Reviewed-by: Heiko Stuebner Reviewed-by: Conor Dooley --- arch/riscv/kernel/cpufeature.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 421b3d9578cc..37e8c5e69754 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -328,6 +328,9 @@ void __init_or_module riscv_cpufeature_patch_func(struc= t alt_entry *begin, struct alt_entry *alt; u32 tmp; =20 + if (stage =3D=3D RISCV_ALTERNATIVES_EARLY_BOOT) + return; + for (alt =3D begin; alt < end; alt++) { if (alt->vendor_id !=3D 0) continue; --=20 2.38.1