From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EA769CCF9FA for ; Fri, 31 Oct 2025 09:16:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kO3mYnSx+SJ79r8fxt6iy7F2Q1sQ4j5WzZ66ieR5tks=; b=NOOWman7h9KWkf1IpMJJHeGEzO KjbYEpO7RT1ZbWZ9R1XfQu4GLfwbmhuuMrSPoZWztkhOV/padS9OEl+jKQ40JH0C/mjIsPzSQftj8 AK/kLtZ4MmFJ5KZPLJdDZYy8vxUxxloBlhaXPHnm5uxxeLv46Llu5CFqpiGs0+mFX2ZKqBRjt3Gav Q/TywejdfVnqnyhFHVo8YiAGqRqpHR6iuM2X32ErRTrh7WLpSNWyvWJBmSyV5dqWbbNvYEfbLTsvT iakMPqEGFs7CFyKdhsB/NyQ+JMv5OC+FzpMgwbku7xInGK0bnixUkxa/EYqXbx4QFmwTD+ssWW29M BuAPojOw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vElEs-00000005nAx-1ONI; Fri, 31 Oct 2025 09:16:06 +0000 Received: from wxsgout03.xfusion.com ([36.139.52.80] helo=wxsgout04.xfusion.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vElEp-00000005n7u-0GEB for linux-arm-kernel@lists.infradead.org; Fri, 31 Oct 2025 09:16:05 +0000 Received: from wuxpheds03048.xfusion.com (unknown [10.32.143.30]) by wxsgout04.xfusion.com (SkyGuard) with ESMTPS id 4cyb0t30h5zB9Xpf; Fri, 31 Oct 2025 17:15:10 +0800 (CST) Received: from DESKTOP-Q8I2N5U.xfusion.com (10.82.130.100) by wuxpheds03048.xfusion.com (10.32.143.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_RSA_WITH_AES_128_CBC_SHA256) id 15.2.2562.20; Fri, 31 Oct 2025 17:15:47 +0800 From: shechenglong To: , , CC: , , , , , shechenglong Subject: [PATCH v3 1/2] cpu:Remove the print when the CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY Kconfig option is disabled. Date: Fri, 31 Oct 2025 17:15:05 +0800 Message-ID: <20251031091507.1896-2-shechenglong@xfusion.com> X-Mailer: git-send-email 2.37.1.windows.1 In-Reply-To: <20251031091507.1896-1-shechenglong@xfusion.com> References: <20250918064907.1832-1-shechenglong@xfusion.com> <20251031091507.1896-1-shechenglong@xfusion.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.82.130.100] X-ClientProxiedBy: wuxpheds03047.xfusion.com (10.32.141.63) To wuxpheds03048.xfusion.com (10.32.143.30) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251031_021603_736775_A5F9C030 X-CRM114-Status: UNSURE ( 8.35 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Following the pattern established with other Spectre mitigations, do not prints a message when the CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY Kconfig option is disabled. Link: https://patchwork.kernel.org/project/linux-arm-kernel/patch/20250918064907.1832-1-shechenglong@xfusion.com/ Suggested-by: Will Deacon Signed-off-by: shechenglong --- arch/arm64/kernel/proton-pack.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c index f9a32dfde006..d833b7c1bba8 100644 --- a/arch/arm64/kernel/proton-pack.c +++ b/arch/arm64/kernel/proton-pack.c @@ -1042,8 +1042,6 @@ void spectre_bhb_enable_mitigation(const struct arm64_cpu_capabilities *entry) if (arm64_get_spectre_v2_state() == SPECTRE_VULNERABLE) { /* No point mitigating Spectre-BHB alone. */ - } else if (!IS_ENABLED(CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY)) { - pr_info_once("spectre-bhb mitigation disabled by compile time option\n"); } else if (cpu_mitigations_off() || __nospectre_bhb) { pr_info_once("spectre-bhb mitigation disabled by command line option\n"); } else if (supports_ecbhb(SCOPE_LOCAL_CPU)) { -- 2.33.0