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 5F2262798E6; Tue, 27 May 2025 17:14:04 +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=1748366044; cv=none; b=GO3yyrS3CiK0eC9HTFdFMWgJhVJAqS/LYjWnefPJ2Ec0lafzRl867wo157e6xTdYHrV3xvtfRyQLSW6KY13qVpGGI2Kp+xnnWSsYiB0ayR2oyvgZMp9ecn+456uxpbCgx05/CdNuBgK+YQpcgZ0Wl+2lZTCYcvkYV9h3xEL0+po= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748366044; c=relaxed/simple; bh=9M1J1iRwqfz/jWEN6O4bC5Tz/jzERxTqgaVLoG00ACM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MDEqvI0Z51yXkC8O3sEZYjbGPCGjrkIyJOJPWFoM/V3pKJ2jlTcMUEbcGfU/CfC9ZFCoK7tdGBPSWVCU9hCofip6CrRp2EBCngQWUJtnUEJfNiUVLtLt7BPD7EFVdPEoVe5Lt5yI7nSTYHaxwDr9s98cO50gI8oggjd9ZBWAOaE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ZHKNYuu5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ZHKNYuu5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6A235C4CEE9; Tue, 27 May 2025 17:14:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1748366043; bh=9M1J1iRwqfz/jWEN6O4bC5Tz/jzERxTqgaVLoG00ACM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZHKNYuu5ikCl1Z8A9WwwuoYMsH0VHKTYYr+X3J+oR8k+nlwxCE1wOY9VLouSV97bb BRZKVBzu5a3KZorihuXwFMyHXDsLr7RmOyYAwmcNyAYCJolIse+eWcGMOQv13qN1ZO QZFsqz2gqRuhCoAmKkb9ZG6ipe8Yo3JDOnDROzvc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Stefan Wahren , Joy Zou , Vinod Koul , Sasha Levin Subject: [PATCH 6.12 545/626] dmaengine: fsl-edma: Fix return code for unhandled interrupts Date: Tue, 27 May 2025 18:27:18 +0200 Message-ID: <20250527162507.130334213@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250527162445.028718347@linuxfoundation.org> References: <20250527162445.028718347@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stefan Wahren [ Upstream commit 5e27af0514e2249a9ccc9a762abd3b74e03a1f90 ] For fsl,imx93-edma4 two DMA channels share the same interrupt. So in case fsl_edma3_tx_handler is called for the "wrong" channel, the return code must be IRQ_NONE. This signalize that the interrupt wasn't handled. Fixes: 72f5801a4e2b ("dmaengine: fsl-edma: integrate v3 support") Signed-off-by: Stefan Wahren Reviewed-by: Joy Zou Link: https://lore.kernel.org/r/20250424114829.9055-1-wahrenst@gmx.net Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/dma/fsl-edma-main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c index 27645606f900b..4794d58dab556 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -56,7 +56,7 @@ static irqreturn_t fsl_edma3_tx_handler(int irq, void *dev_id) intr = edma_readl_chreg(fsl_chan, ch_int); if (!intr) - return IRQ_HANDLED; + return IRQ_NONE; edma_writel_chreg(fsl_chan, 1, ch_int); -- 2.39.5