From nobody Fri Feb 13 15:41:33 2026 Received: from mail-pf1-f176.google.com (mail-pf1-f176.google.com [209.85.210.176]) (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 55A0C3B79F for ; Thu, 18 Apr 2024 07:47:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.176 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713426443; cv=none; b=p136Do3duHpGNv6RssviwTpkXtRSPEVTZIGHTHGwiO09bCblZIEn8rqmieocmcHT8BuijwZqZXTWsd1DJWFHmLdHiPNA6X1SM7SFJd2RY+T3B/Eo4xc2WRf1+UOTg8r7/+Qx3+xhW2385CYCO8btHA6xaGfPRTIC9/UX2g9zegI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713426443; c=relaxed/simple; bh=QRRobUsIJJ76UXSL3DBQXDncJLCTWNk34A68JkiiqmA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=c4CtWdgzTXCfymqI3/ddyWpYgbLeaeHLAHOsCsHtOK9qs5kU/Ax8pHyim0hXpaAJU+HYz4EPG5bJCkKB0B5/KNIu3gZx2yDgFolaDvOny8M3vupvAoVOvQpnooXECbXLmcTJw/5lbTqAoKmAxWcPC/W5zQgrlhdBTRqQ/OAbZyw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=denq3Bp2; arc=none smtp.client-ip=209.85.210.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="denq3Bp2" Received: by mail-pf1-f176.google.com with SMTP id d2e1a72fcca58-6ecec796323so627106b3a.3 for ; Thu, 18 Apr 2024 00:47:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1713426441; x=1714031241; 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=vhdi+OIm4ie6yhqkj7c+BFH/TdKVj4WDg6Ic5P2zvrY=; b=denq3Bp2TD9mYgrBDCVaXaolbOG5lLNbtRJqscF6abFl0Q57xRP8ARIrA6LsD6wD+b XAaqkVxFzLS/ut9foRU7WDHy8vVAtzn3VCUGogXKLvXq937lh/KrlW016MNwxqVBjUKv dKdkVNM/wfx3Jc9doaYJX2MGLW9TsTWqeAWoA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713426441; x=1714031241; 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=vhdi+OIm4ie6yhqkj7c+BFH/TdKVj4WDg6Ic5P2zvrY=; b=AdEaJ+8LudJW4aCndAJkOJ3Agdt/W/pjaojCDL28YRB709nDFLDUJv6ZA9TiCaoe3G 3+DzgmrXaRBwhHunyqOtQheNqTnSJ97XYaxyZB7Q4ycJABo0Y0xDHTxuCA9KjS4zUZFz qHszbeVch0sbMTgPT12kI9f17bHniaBPsfwX7v53cIgzFU1JhSDt2R/EjL1zk11+4skr j2c2rQrDTIoeFCeXs5qFiP5ymgZJnoSyzCIx2y+zDkJmnW3F08/nL92BXErMqnPEvrgP s0lZ2SZgoHk9jCbz0rKc2ovqm6RfNd6HhY/yvNOZtQ5Ts62xAzfW4IikM5QZuTJ7APPe vOFw== X-Gm-Message-State: AOJu0Yz3NKXGIVQoHGVM5wNZ5uZdNiMVIaAn061Z2fJwvi2DzKAfGARf aZNx2UaUPZaKmPUVcCk8na2ealpE17qFhsPdoEmcnEew6AVLJr03fsI+U1Toqw== X-Google-Smtp-Source: AGHT+IEmvK0jTNwaZDAqiM95Oud987xeKKnEzpiDrrqIuqJMFGOvGiQpVT6icJwlZ0dYUBFqO4Ud+A== X-Received: by 2002:a05:6a20:9492:b0:1a7:4b3f:a66c with SMTP id hs18-20020a056a20949200b001a74b3fa66cmr2094209pzb.49.1713426441620; Thu, 18 Apr 2024 00:47:21 -0700 (PDT) Received: from localhost ([2401:fa00:8f:203:dc1b:764b:ae0a:3904]) by smtp.gmail.com with UTF8SMTPSA id km18-20020a056a003c5200b006efbc365de9sm869384pfb.121.2024.04.18.00.47.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 18 Apr 2024 00:47:21 -0700 (PDT) From: David Stevens To: Thomas Gleixner Cc: linux-kernel@vger.kernel.org, David Stevens Subject: [PATCH] genirq: Disable suspended irqs when restoring affinity Date: Thu, 18 Apr 2024 16:46:52 +0900 Message-ID: <20240418074652.126355-1-stevensd@chromium.org> X-Mailer: git-send-email 2.44.0.683.g7961c838ac-goog 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" In irq_restore_affinity_of_irq(), after initializing an affinity managed irq, disable the irq if it should be suspended. This ensures that irqs are not delivered to drivers during the noirq phase of resuming from S3, after non-boot CPUs are brought back online. Signed-off-by: David Stevens --- kernel/irq/cpuhotplug.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/irq/cpuhotplug.c b/kernel/irq/cpuhotplug.c index 1ed2b1739363..c00132013708 100644 --- a/kernel/irq/cpuhotplug.c +++ b/kernel/irq/cpuhotplug.c @@ -197,6 +197,8 @@ static void irq_restore_affinity_of_irq(struct irq_desc= *desc, unsigned int cpu) =20 if (irqd_is_managed_and_shutdown(data)) { irq_startup(desc, IRQ_RESEND, IRQ_START_COND); + if (desc->istate & IRQS_SUSPENDED) + __disable_irq(desc); return; } =20 base-commit: e8f897f4afef0031fe618a8e94127a0934896aba --=20 2.44.0.683.g7961c838ac-goog