From nobody Wed Apr 1 13:50:18 2026 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 AA02939BFF0; Tue, 31 Mar 2026 10:00:33 +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=1774951233; cv=none; b=Ur0JgRW2+0YKMH4+c+QdQtTH150bPeR6U3N/n2cv8Assw5001Ko2bcieiAzXZ15/6i8peHtTsFtSTbq0GFiBboGM3Hy3E/NFinUyOMFD/cRVG3cCrYGUPyivlXW6B7GBiPY+GnjcU5U41SfbQhxb5yRrct7jsH8VC8rH70sQH/w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774951233; c=relaxed/simple; bh=WYlzG+ukMJv0uKE6bBondQfqi9l4oA5FGcpDNGm8BfQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=s4RD8fuqmpMgIC2se/tc37wkR/8khJRffX2fI5gEHS42p5Oy50gyVRbubi9D3ALq/jYj6NkdDCZBssZx7Rchu9E6VGHQ5XpR/iuY0AHS1KYV11vXLuhy0hYZe/7FV3hANdFWLkRq6aFYYGV+7r6cBH8EF5YQ82vZh2Uh9HQEh5g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CJvLYjTs; 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="CJvLYjTs" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 311CFC2BCB2; Tue, 31 Mar 2026 10:00:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774951233; bh=WYlzG+ukMJv0uKE6bBondQfqi9l4oA5FGcpDNGm8BfQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=CJvLYjTsGVFPfmwcssIBPuYWjEXZyeslFXYMGjWslUxnkyWJMRkYWx/l4rHOl4MhJ Cs86r/iSby2dp1Cy3j1p0YGLO8/seT+yM9iTE785mhUngsXG5HrJINhMDZAvJ8kXUa 9MteSpTOUqG7xcXMh7lSM12m7OWM2y7/jGQ7ij9uIsRnSyoAWJP5cdy3YmbmeIUWtl 3skZX52saIkv3R0r8Zc79v2VEXqEJ5d8ohc75fVF98npAw3lC5eBO+pQYuqJ8skGNz orDcMmp0BajvP9QI2x0X2qP6MS0813wJiAU0+2RjN5K9t2VKQWmbyqxaXS9dG18Kth 0N4mtm7SpjM/w== From: Maxime Ripard Date: Tue, 31 Mar 2026 12:00:13 +0200 Subject: [PATCH v4 4/8] dma: contiguous: Export dev_get_cma_area() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260331-dma-buf-heaps-as-modules-v4-4-e18fda504419@kernel.org> References: <20260331-dma-buf-heaps-as-modules-v4-0-e18fda504419@kernel.org> In-Reply-To: <20260331-dma-buf-heaps-as-modules-v4-0-e18fda504419@kernel.org> To: Sumit Semwal , Benjamin Gaignard , Brian Starkey , John Stultz , "T.J. Mercier" , =?utf-8?q?Christian_K=C3=B6nig?= , Marek Szyprowski , Robin Murphy , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko Cc: Albert Esteve , linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-mm@kvack.org, Maxime Ripard X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=953; i=mripard@kernel.org; h=from:subject:message-id; bh=WYlzG+ukMJv0uKE6bBondQfqi9l4oA5FGcpDNGm8BfQ=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDJmnZxv81fradDYnN/8Gl+LUDRekPcP7X+5e8vtpaNLbZ K2t8qwHOqayMAhzMsiKKbI8kQk7vbx9cZWD/cofMHNYmUCGMHBxCsBEJvky1hcs2svx6NgZ4yLT IJXHbfnV+8vfCTVuNBNRuXuBr/aQjfAp4RlrxZYV5B417zYNOlOXythwwin1TskDzm27Z2rb8pt OVlje0m/zePGpgNv7l8Yd/GkY9ICfXSqnI+m2pstGTfO58fwA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D The CMA dma-buf heap uses the dev_get_cma_area() function to retrieve the default contiguous area. Now that this function is no longer inlined, and since we want to turn the CMA heap into a module, let's export it. Signed-off-by: Maxime Ripard --- kernel/dma/contiguous.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c index fd8d3518a2323f0a631fb185ef92a24c35f8d25d..83a5bd9488e1448cc72e92ed204= ce804164cc6b8 100644 --- a/kernel/dma/contiguous.c +++ b/kernel/dma/contiguous.c @@ -136,10 +136,11 @@ struct cma *dev_get_cma_area(struct device *dev) if (dev && dev->cma_area) return dev->cma_area; =20 return dma_contiguous_default_area; } +EXPORT_SYMBOL_GPL(dev_get_cma_area); =20 #ifdef CONFIG_DMA_NUMA_CMA =20 static struct cma *dma_contiguous_numa_area[MAX_NUMNODES]; static phys_addr_t numa_cma_size[MAX_NUMNODES] __initdata; --=20 2.53.0