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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 95CC8C19F2A for ; Mon, 8 Aug 2022 01:58:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243419AbiHHB6O (ORCPT ); Sun, 7 Aug 2022 21:58:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243773AbiHHBz7 (ORCPT ); Sun, 7 Aug 2022 21:55:59 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 36D091C903; Sun, 7 Aug 2022 18:39:26 -0700 (PDT) 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 ams.source.kernel.org (Postfix) with ESMTPS id C5AF1B80DCF; Mon, 8 Aug 2022 01:39:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AA054C433D7; Mon, 8 Aug 2022 01:39:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1659922763; bh=lu1GMkmK8RvtWHd2cF/5Xh1LkyiYdqalamAn0AjtQsU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AaKFk2VlWUZXaha2JyGueEdZjwBDzaXWV6TQl+8E43fPzOeweFFVyMEAD5UvbpdQB FcqjuC1Mlj4hyIU6w5NhjiAkbL6dEVPOkpLl5BzMRK64+uOuNRbKqVz/etPSoCDgO/ BVCoAInSd+6BZUgHEohohoq1XcTYXVZtMG1HMvH5YHDT15SNzMdjcdjWFvO+tVuc/1 X0WH3trKIio3mOIXIpcxhc6NRE32atM66mh54k2/bMBWLs5X0dH+oLrDgjebJJ8dFB Fxf9r9su30BNblOQ3wFMFzHNKPT+sqNKaiiDaTbbAO0etcRYwtOnGedvBu7Ue7Vhy4 ps9Zwq7M2BuhA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Samuel Holland , kernel test robot , Marc Zyngier , Sasha Levin , tglx@linutronix.de Subject: [PATCH AUTOSEL 4.19 04/16] genirq: GENERIC_IRQ_IPI depends on SMP Date: Sun, 7 Aug 2022 21:39:01 -0400 Message-Id: <20220808013914.316709-4-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220808013914.316709-1-sashal@kernel.org> References: <20220808013914.316709-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Samuel Holland [ Upstream commit 0f5209fee90b4544c58b4278d944425292789967 ] The generic IPI code depends on the IRQ affinity mask being allocated and initialized. This will not be the case if SMP is disabled. Fix up the remaining driver that selected GENERIC_IRQ_IPI in a non-SMP config. Reported-by: kernel test robot Signed-off-by: Samuel Holland Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20220701200056.46555-3-samuel@sholland.org Signed-off-by: Sasha Levin --- drivers/irqchip/Kconfig | 2 +- kernel/irq/Kconfig | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 9d3812cd668e..85099cff62eb 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -153,7 +153,7 @@ config IMGPDC_IRQ config IRQ_MIPS_CPU bool select GENERIC_IRQ_CHIP - select GENERIC_IRQ_IPI if SYS_SUPPORTS_MULTITHREADING + select GENERIC_IRQ_IPI if SMP && SYS_SUPPORTS_MULTITHREADING select IRQ_DOMAIN select IRQ_DOMAIN_HIERARCHY if GENERIC_IRQ_IPI select GENERIC_IRQ_EFFECTIVE_AFF_MASK diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig index d532bf0c5a67..81473974b1d5 100644 --- a/kernel/irq/Kconfig +++ b/kernel/irq/Kconfig @@ -80,6 +80,7 @@ config IRQ_FASTEOI_HIERARCHY_HANDLERS # Generic IRQ IPI support config GENERIC_IRQ_IPI bool + depends on SMP select IRQ_DOMAIN_HIERARCHY # Generic MSI interrupt support -- 2.35.1