From nobody Fri Feb 13 19:27:27 2026 Received: from mail-qv1-f42.google.com (mail-qv1-f42.google.com [209.85.219.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F72A28F0 for ; Fri, 19 Apr 2024 16:52:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713545558; cv=none; b=mpcZV2Z2vBJpTxBTowf6b6+CU4vXaijPfQGSsdYs1/8EfkGHVT1g5Qt4Aie+LaDWd+L+Tio41DCRHF4QWsFbUlpMTnGoVZl+BD/obQVnv7DsCKJgNYINeDMA0RQ0Vfd49W5AJz5PDXPYidS0YpV1OLQ9LRFW09MXBa6y8RNL3II= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713545558; c=relaxed/simple; bh=vy6aezxOC3efJW/mWXA5YwJTZpDnfjFujpe4G+C4xoA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=qoDi4FbkTcWWtIl1wTBzVkD7XQt/QSHDcTdartN79/pwp1PenVK2Q/z1lu2XsKo51yc+BcOAugl1NR8LSYsSsjc3dca/PxYRn7FFhxiGtgpDhKRGV/c8NnMxr57RRd/LB0+42542XAlsh83gixyyzU37HzueGSUECBfcTxcQREk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=UXavZ0qh; arc=none smtp.client-ip=209.85.219.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="UXavZ0qh" Received: by mail-qv1-f42.google.com with SMTP id 6a1803df08f44-6a05f376effso7080126d6.0 for ; Fri, 19 Apr 2024 09:52:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1713545556; x=1714150356; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=xKzIHJYCP22vx3azSLi3FHmio6HmCt0i5WdVlerY350=; b=UXavZ0qh1hQ3Olu6nyGkYNNvYS9x6aXp9lKEx3LC8HYhoYs4mThDRbvCh0bjrxfQAO e6zBKSfTJVmmNLDdvvwRHvQS2MPa7VdjRZUwK+qUUhIK+xxO5ZweN0D/tdLEOrodx5fZ mbIDDea/1Es78VI5g4tyXbvT36EU21JKRXNFb1mCgl/bqNKDP0CjdPaR5tyKjfv/gB5l WNJoaTN68nxZZLkP1YLAmE5fCIRJN2bLwka7LsFbwW7CwKgDXNnHwy7WKEFrBfIVK4dw qHSOAdqPHWPZpscOXRxlfVz8tQMMjOm45q9dyIeQ3pAUVhBQxfoOJy4wHzTZ/avfORmx B5Jw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713545556; x=1714150356; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=xKzIHJYCP22vx3azSLi3FHmio6HmCt0i5WdVlerY350=; b=PvhN09tBdNtJnRJ2PWsQbU6GlIPudW/mweyvo4G3+2D8bc4gChqu73ZVOUGtD9+uvC Idflm8ag+eY0HsuKLr+0bg5iAniVkSDIfTcL84/A3TgNx/Fo4a5EfmbCJE7CqKLfaNj1 W8gkCV9KZ/KTv8inLeKJeJ3Dikhg+i/IACCNIq9NP2nBfDDfnRLF9+829kqxs9msjbj3 kEPbiy+yptwvt+bYsZTszuJxyjLKebxPMDSNvuggfQkRazJWX4GNmMk7eooUxludQC5f a1JC0/SNT4sp8U+TTdYd7rpNwB7i44h5TfxUE5S11qM0hef+AistyYyGmdrTwlfuY7vl zGkQ== X-Gm-Message-State: AOJu0YxTg2vg3xRx5yPpn2fLW/gQkaSZNM9aRBXkoUhl2E4xHF9HLIqg Np9N44WGGj4YtD6y1lWK5v0Mtq1pwRa+eQInGu3cdKZGMkqtlXufsf4W X-Google-Smtp-Source: AGHT+IGByohxFi5T8ZwBpAfW/j4AJ/tas0L7ySTnYpBymjEvzG+NIKIHrIYwE25n+G8TuFu4Ek303w== X-Received: by 2002:a0c:ef81:0:b0:69b:5410:df8d with SMTP id w1-20020a0cef81000000b0069b5410df8dmr2648923qvr.41.1713545555900; Fri, 19 Apr 2024 09:52:35 -0700 (PDT) Received: from citadel.lan ([2600:6c4a:4d3f:6d5c::1019]) by smtp.gmail.com with ESMTPSA id g6-20020a0cdf06000000b0069f1c071f1csm1682224qvl.29.2024.04.19.09.52.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Apr 2024 09:52:35 -0700 (PDT) From: Brian Gerst To: linux-kernel@vger.kernel.org, x86@kernel.org Cc: Ingo Molnar , Thomas Gleixner , Borislav Petkov , Brian Gerst Subject: [PATCH] x86/smp: Remove dead call to switch_gdt_and_percpu_base() Date: Fri, 19 Apr 2024 12:52:24 -0400 Message-ID: <20240419165224.73859-1-brgerst@gmail.com> X-Mailer: git-send-email 2.44.0 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" smpboot.c is only built when CONFIG_SMP is set, so the call to switch_gdt_and_percpu_base() is dead code. Signed-off-by: Brian Gerst --- arch/x86/kernel/smpboot.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index a58109583c47..f752047688ab 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1128,12 +1128,6 @@ void arch_thaw_secondary_cpus_end(void) */ void __init native_smp_prepare_boot_cpu(void) { - int me =3D smp_processor_id(); - - /* SMP handles this from setup_per_cpu_areas() */ - if (!IS_ENABLED(CONFIG_SMP)) - switch_gdt_and_percpu_base(me); - native_pv_lock_init(); } =20 base-commit: 7fcd76de8a7bc12e930ef383a157ce99d711715d --=20 2.44.0