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 50BF31C5D72; Mon, 2 Jun 2025 14:22:16 +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=1748874136; cv=none; b=SkLNYOu08Wcu08YSAN2ne4TUvpON5SP+reoMHljJ+YPRuH4weLss8tO4WlQWdhGWHSGGxWS9LoRA+TqwJfJF0p/3Pm6SObUBQieN2lSDQmqcCsKXd09y3tI6gk15ZYjvYCsuTH7xEG6YC/I8VP3DeKym+zpwZ1H9QEmfavzxDqE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748874136; c=relaxed/simple; bh=EPzxl7YrD01h2PVU0wRu2i1rTEwsGa/0o8Ens1cwSKg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=O4qvho32wWyhFQpiwu+UrIAZ5xktixqlepqTtTUQEpwCeEcDGTptt0XCleS6Kzx63CsrgIOHuXWmCD4k8RE8Iwvqm51mO9Mxxv+B31XQr8qR5TpnoGi840BmJOkOGtIafBlwyZ5UhmZfuD2c9NHh8Wxhpz7g4MOW9lDw3aOBfms= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=httUQ4dx; 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="httUQ4dx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C2344C4CEEB; Mon, 2 Jun 2025 14:22:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1748874136; bh=EPzxl7YrD01h2PVU0wRu2i1rTEwsGa/0o8Ens1cwSKg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=httUQ4dxr/nutxMEyIbca+HiwumFLoWowAYPLWap0His246frRhW3c4Q3YvWAtl/A 4edG4ejWHT7h7/JihOfXZ8kl5wNPpdExfYcSmA0Gcc4Sb6LybpAGeJ3PZQgXE3YtUa GOpTLNYFcg6sCTnQvucBP9NmpTJ46FB7yiejxlsM= 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 6.6 339/444] dmaengine: fsl-edma: Fix return code for unhandled interrupts Date: Mon, 2 Jun 2025 15:46:43 +0200 Message-ID: <20250602134354.685967670@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250602134340.906731340@linuxfoundation.org> References: <20250602134340.906731340@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 6.6-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 cc9923ab686dc..eccbcf67951fb 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -58,7 +58,7 @@ 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