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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 40AD8E81BDA for ; Mon, 9 Feb 2026 15:38:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9F27F10E41A; Mon, 9 Feb 2026 15:38:13 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=resnulli-us.20230601.gappssmtp.com header.i=@resnulli-us.20230601.gappssmtp.com header.b="VKcxFpGA"; dkim-atps=neutral Received: from mail-wm1-f49.google.com (mail-wm1-f49.google.com [209.85.128.49]) by gabe.freedesktop.org (Postfix) with ESMTPS id DFC4510E41A for ; Mon, 9 Feb 2026 15:38:12 +0000 (UTC) Received: by mail-wm1-f49.google.com with SMTP id 5b1f17b1804b1-483487335c2so5393305e9.2 for ; Mon, 09 Feb 2026 07:38:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=resnulli-us.20230601.gappssmtp.com; s=20230601; t=1770651491; x=1771256291; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Jk99TzIHNfOaBko9b1E43IwPHNs+vzenJUms8qd4tnM=; b=VKcxFpGAYvRRyWaTQCJXzhzOGRvs2/ssmoCdyrKYO9RmRnstdQY3ulrSpR/EJXF+Uh FT2IAkvcjuQb7vuQavrFZroVUJn7lVPi7tqvGFxjZFKf7QyewrxGF44cUvc0kfbUi7Oz Oqj6MUGETZlQY9yIBDH5eiSMdwCLGY7TbHOn4Jxo5HBBaXfjEcbgFJU/0+bJXn4gFXPh wz06nEsoAlhZlipYydwcH9+7PC029gBquyJAT4WP7HEktHKjdxFBXRbzTGk4flcAxwfV SYchymdY1QQH62ub/vBCaJCqqUKT81T+hqFuk37QxuZQwqHUkU4W8fLuvFkqxX9zXq5i OZBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770651491; x=1771256291; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=Jk99TzIHNfOaBko9b1E43IwPHNs+vzenJUms8qd4tnM=; b=qVPihooP89SW0szejuwfFOSiZrVS0rZlfctWPgVlaVcByYRZn8pQLGaKlSI0objg34 aIJzgCzPf8KYIiVStBZRBGEpIUi6uAvygHA+mj3buGJu1tOBplBme9XM/Kmav/U7Y9vi UKcMjjd+I+t3TdJ2s8uA1jNMFM3f4Ar3yyHlFFb//MRMODin0oJ+lct80oLd4XcsYfAa ramz+9fah8qPQjFQSAYQeLblfEh33qOPEsTmyxqJRmobQjCreasW0rwz4RfzRyEJ4Jp3 ClBzAUGk4LZ2pNzNuy74+UHMNMbIfhU6Pf5xenLtuCbCuNvPhLyezzB1x//44tveG8/x 9sZw== X-Gm-Message-State: AOJu0YzG7Plk+8nUdG1A31MkY7qnxC4O/XNE06AQUet4Ow6AcDcIn4g4 +hg5FwC8DcZNvMRYd27OiErwKS+UbfyB/U1GjJwAnLLPOeeLAdNd67Op7DOVwtcqWsKvkncQrpm SX0SZ X-Gm-Gg: AZuq6aJr5XoRewGpMID982VPU7K1tn9J63ImiviRMvGscv624Rf75XI8SHhEgLWRsjh BZYYqR27vKsLxTwHu6KnaQ9JugkhZyZUvJoZPH93pJ727dW3owwoTRebqef6zo2cWAtXJ65RMFs OYNPtAWW9E5On6Tfyzc/WJTunlFnq9hgdO0pMOw7WMiPHn8liZ0hWCa43R33rLKtiYEete4pIxM ohgmFmc2KO94ekISc4C3w6eb9CX/lGg71SmSlXAqzGY1nNrXMk773zdPPzDkPk9K9XB70bGNe4G GyUWA4ldmw4kYVZIqUKILntDFV2Qus9Tv3e8eTyjJEanGUY/6H5EGMIpP4BAFQ9Y94GHwI1vQy3 jBu4Safh+6KDH9DMZ6BbELV9UinbXsTR/niCn+j7i++BzKvStGlDIBhqYNn3v6XfIqdRxVU4PUO 6YJA== X-Received: by 2002:a05:600c:6592:b0:47e:e7e5:ff32 with SMTP id 5b1f17b1804b1-483209c6dd4mr181313355e9.34.1770651491431; Mon, 09 Feb 2026 07:38:11 -0800 (PST) Received: from localhost ([85.163.81.98]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4376a78d796sm11560760f8f.20.2026.02.09.07.38.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Feb 2026 07:38:11 -0800 (PST) From: Jiri Pirko To: dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, iommu@lists.linux.dev, linux-media@vger.kernel.org Cc: sumit.semwal@linaro.org, benjamin.gaignard@collabora.com, Brian.Starkey@arm.com, jstultz@google.com, tjmercier@google.com, christian.koenig@amd.com, m.szyprowski@samsung.com, robin.murphy@arm.com, jgg@ziepe.ca, leon@kernel.org, sean.anderson@linux.dev, ptesarik@suse.com, catalin.marinas@arm.com, aneesh.kumar@kernel.org, suzuki.poulose@arm.com, steven.price@arm.com, thomas.lendacky@amd.com, john.allen@amd.com, ashish.kalra@amd.com, suravee.suthikulpanit@amd.com, linux-coco@lists.linux.dev Subject: [PATCH 1/5] dma-mapping: avoid random addr value print out on error path Date: Mon, 9 Feb 2026 16:38:05 +0100 Message-ID: <20260209153809.250835-2-jiri@resnulli.us> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20260209153809.250835-1-jiri@resnulli.us> References: <20260209153809.250835-1-jiri@resnulli.us> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Jiri Pirko dma_addr is unitialized in dma_direct_map_phys() when swiotlb is forced and DMA_ATTR_MMIO is set which leads to random value print out in warning. Fix that by just returning DMA_MAPPING_ERROR. Fixes: e53d29f957b3 ("dma-mapping: convert dma_direct_*map_page to be phys_addr_t based") Signed-off-by: Jiri Pirko --- kernel/dma/direct.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/dma/direct.h b/kernel/dma/direct.h index da2fadf45bcd..62f0d9d0ba02 100644 --- a/kernel/dma/direct.h +++ b/kernel/dma/direct.h @@ -88,7 +88,7 @@ static inline dma_addr_t dma_direct_map_phys(struct device *dev, if (is_swiotlb_force_bounce(dev)) { if (attrs & DMA_ATTR_MMIO) - goto err_overflow; + return DMA_MAPPING_ERROR; return swiotlb_map(dev, phys, size, dir, attrs); } -- 2.51.1