From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 793172737F2 for ; Sat, 28 Feb 2026 18:12:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772302327; cv=none; b=kwVwwfFAl9dhk5nACKBhsKsFYOwhbNWSZlEdvrxvoMUGkxarL9QB+amcAJX98hr4hSkGJfgtZJVFPVRM/ogtKnMbpSI1ztw4mh3YnB8fuIITGk8ctv/qBjbQ9FC/J6SDicgHpa3wwyb+QlDWfoQ5y4+aI+r0edGXwapvwXQFCj0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772302327; c=relaxed/simple; bh=dRLhpepTXNwFk1pQVeRp1JsaIP6PeI4quhvOVy3MNU0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Cbt1zmacJuAdRWqR9JBpKM8nlpxfU5FFuNs8FvNUHzNe4m/TiOt1Qh2t1+AgCKeJH0krXnd9FTTNcoN3DJpA8ZXc7E8E0s8cK/qyj9fEPuYaQtuGlqr0TV8qlTkTE04Tsz5bvERypLRWn2o2DtS9FbnUdpgKw76tnuNnSIJ/GY0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tcnp/kkn; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tcnp/kkn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AC7E4C116D0; Sat, 28 Feb 2026 18:12:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772302327; bh=dRLhpepTXNwFk1pQVeRp1JsaIP6PeI4quhvOVy3MNU0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tcnp/kknM2KfDRf/ccazoXadtE21ezRbe6wEcNNNTnOj7MH5Yk51BSgAo+0/uHqdj 7qaSvXK+UWf65JQAiJdAo4mptq9+tVVNxO2iV2/FF8XJoDzDHGX2e4UrcKfXlNCmKn 5JIE/eKP8IsS94SXwl0c/zlBXr/WbIjx7l+iTyZ3B6d1HtB5fn6VHWzzXFi1ey0iJe 2CN6giIRXvrcPgw7ATV3bZius8yl0wpYZgcGzfyT9qMNAD6cv7bQX80ESfpLubXxfI KYqEhijpd+T3EPBo/t7WgaMF1ObW+pkHBDdye8l+C/PtZNnVcB3t9hvKCUEjiEI4ub ZcMZGFdJhvTbA== From: Sasha Levin To: patches@lists.linux.dev Cc: Sebastian Andrzej Siewior , Thomas Gleixner , Charles Keepax , Andy Shevchenko , Sasha Levin Subject: [PATCH 6.1 047/232] mfd: wm8350-core: Use IRQF_ONESHOT Date: Sat, 28 Feb 2026 13:08:20 -0500 Message-ID: <20260228181127.1592657-47-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228181127.1592657-1-sashal@kernel.org> References: <20260228181127.1592657-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Sebastian Andrzej Siewior [ Upstream commit 553b4999cbe231b5011cb8db05a3092dec168aca ] Using a threaded interrupt without a dedicated primary handler mandates the IRQF_ONESHOT flag to mask the interrupt source while the threaded handler is active. Otherwise the interrupt can fire again before the threaded handler had a chance to run. Mark explained that this should not happen with this hardware since it is a slow irqchip which is behind an I2C/ SPI bus but the IRQ-core will refuse to accept such a handler. Set IRQF_ONESHOT so the interrupt source is masked until the secondary handler is done. Fixes: 1c6c69525b40e ("genirq: Reject bogus threaded irq requests") Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Thomas Gleixner Reviewed-by: Charles Keepax Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20260128095540.863589-16-bigeasy@linutronix.de Signed-off-by: Sasha Levin --- include/linux/mfd/wm8350/core.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mfd/wm8350/core.h b/include/linux/mfd/wm8350/core.h index a3241e4d75486..4816d4f472101 100644 --- a/include/linux/mfd/wm8350/core.h +++ b/include/linux/mfd/wm8350/core.h @@ -663,7 +663,7 @@ static inline int wm8350_register_irq(struct wm8350 *wm8350, int irq, return -ENODEV; return request_threaded_irq(irq + wm8350->irq_base, NULL, - handler, flags, name, data); + handler, flags | IRQF_ONESHOT, name, data); } static inline void wm8350_free_irq(struct wm8350 *wm8350, int irq, void *data) -- 2.51.0