From nobody Tue Apr 7 20:06:53 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 A5B7B23D7D4; Fri, 27 Feb 2026 13:23:31 +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=1772198611; cv=none; b=r7cPWvHVT5cE01MV39RNtw7yAoqRBA+siGytsr+pCzib+1WZPmJpKLfPqnYEzquhFL8+1EkHeQ5Lwu/tAqF4LljxI0/yF9w7uQXPnV3tS1q8pQz7vbGPhbaPAw/3ldxvY40mRCpzA+z/SF1hziI4pqhnaBA13rZEN46m4jZN+eg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772198611; c=relaxed/simple; bh=lF+i+xxz8lYHMRYmo1vByp6VuKj6IU9jz++U5QsC7WA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=qworUcUPgqOqhQm+yMPHI5E/ej02Uk1O0pbTyS8HDmJvNqk9vzb3/hvehycFaudcX8GNbBNLzEnydvs6kyxXQJvfFQLQsS3S1EWCV0aiiKsj/FXoIlUZ2jHtdX7WoU4iKZxdX1QBcA0SwdFQKvqP6aaGUMnGTsYTRue8YVDapnc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=spNxsULn; 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="spNxsULn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E55AEC19423; Fri, 27 Feb 2026 13:23:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772198611; bh=lF+i+xxz8lYHMRYmo1vByp6VuKj6IU9jz++U5QsC7WA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=spNxsULn1c97LGHfoREc9Ejotyp/5sCoG59B6vC9RQj+/XjyarKa3hGB3DhBOdIga +5JqtltDrqUpLXSDXp5d86oY74y75IPN7C99GeFXPFuSIPAiKhJgqDrxZ3+/0VEwOZ Ja3YeZ5oEl8o62bccbXR/JkUHa3HdJ1l+VGYZ58VawsDVE4RmqNF9w9OI9z8vW1P8y WzVVYiJbR18F1kwzNOR3IzYTPFjx3TcyGETrFoJKiW+ilIQQLbyeAs1c2kyoTKJz34 +okLqmjo4XyyGZT7glMb0h+miMm7mt9S2PAqvdB2f8BQqzjLrL1WblPemNN+U+pe2y z7sZua2/8u+9g== From: Maxime Ripard Date: Fri, 27 Feb 2026 14:15:44 +0100 Subject: [PATCH v2 5/9] mm: cma: Export cma_alloc and cma_release 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: <20260227-dma-buf-heaps-as-modules-v2-5-454aee7e06cc@kernel.org> References: <20260227-dma-buf-heaps-as-modules-v2-0-454aee7e06cc@kernel.org> In-Reply-To: <20260227-dma-buf-heaps-as-modules-v2-0-454aee7e06cc@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: 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=1246; i=mripard@kernel.org; h=from:subject:message-id; bh=lF+i+xxz8lYHMRYmo1vByp6VuKj6IU9jz++U5QsC7WA=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDJkLZ+3UDXM3YsozKdlkntAT9Pi0ZKBI6evPP/JLvrfmT LVoLJreMZWFQZiTQVZMkeWJTNjp5e2LqxzsV/6AmcPKBDKEgYtTACYSPpux4VxNT8HVPpFC/S0m TyYt9eWXbA5+9quamb1LatGC59G/5vVpNT8O/O01NaD3cv3045wbGOv9X2872SPgU7PmTpGz+pc 7IfeFbaaf5F9e9J6jR7M59+jbn01b5n/OXc/gfsbv70qvt94A X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D The CMA dma-buf heap uses cma_alloc() and cma_release() to allocate and free, respectively, its CMA buffers. However, these functions are not exported. Since we want to turn the CMA heap into a module, let's export them both. Reviewed-by: T.J. Mercier Signed-off-by: Maxime Ripard Acked-by: David Hildenbrand (Arm) --- mm/cma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/cma.c b/mm/cma.c index 94b5da468a7d719e5144d33b06bcc7619c0fbcc9..be142b473f3bd41b9c7d8ba4397= f018f6993d962 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -949,10 +949,11 @@ struct page *cma_alloc(struct cma *cma, unsigned long= count, if (page) set_pages_refcounted(page, count); =20 return page; } +EXPORT_SYMBOL_GPL(cma_alloc); =20 static struct cma_memrange *find_cma_memrange(struct cma *cma, const struct page *pages, unsigned long count) { struct cma_memrange *cmr =3D NULL; @@ -1025,10 +1026,11 @@ bool cma_release(struct cma *cma, const struct page= *pages, =20 __cma_release_frozen(cma, cmr, pages, count); =20 return true; } +EXPORT_SYMBOL_GPL(cma_release); =20 bool cma_release_frozen(struct cma *cma, const struct page *pages, unsigned long count) { struct cma_memrange *cmr; --=20 2.53.0