From nobody Wed Apr 1 13:50:16 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 913D439BFF0; Tue, 31 Mar 2026 10:00:36 +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=1774951236; cv=none; b=P/R1jRbSm2Io19nPbzk4Vlk/Hy9Ex1dw4GBIFPvDqvVf16dMaeA9TuwF+lytyQrcKhobM/6x4altNe1sy5AwQDoJtDaWockdBJJBFxbcYyPNWu8d8Sl+EywGaCrqeDN9UubnblErSob7aXfOhRudZrWUQzZjPJjNWRxCFB3LFTY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774951236; c=relaxed/simple; bh=xA8iRNbldwAg/IWB0t2FyV0TtMeqN3qjpeDuNnBZW50=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=XlPROpwliHQ5qlDQ3kwdE+H3KAmFbzDxPgoOwPQeji3cZeX0P0E2kPK06kJ56zUU9IcF31Jb07TyhMEJPQLd/YA6gqpTYBNUQ21RYkcSHudYuYr+mhCnoKnX5UPV4StqqRN9OO6l+UhVfY1+o/NTBo5GbGYJ9fSdTgiREyU0FG8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TPB5Vr9q; 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="TPB5Vr9q" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DCA56C19423; Tue, 31 Mar 2026 10:00:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774951236; bh=xA8iRNbldwAg/IWB0t2FyV0TtMeqN3qjpeDuNnBZW50=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=TPB5Vr9qWbumeBuwOxgrV3ajCVGtfgSc04MSZoTzT+N+Ky/SJO7mY400stC8X+YJE zSuozt9uNtYKA5a8FG+ckBKsq4Kqph/USj9t7jAhBSHAllzf7JfpI88qTYUSTv+qgb 0md2i+/s6b7xeUV66zkeskIhyGVNndjnX7ggvITFVp0vZ5DyYwYKuXvlFvI23ZWPdD YC9+/VUNcAcCrRMiAnSF8o0zC3DOyjBcW28uUYyd9jWj8H4tltwGYCvV4jxmqyzX6N jwD2sWy8nLEQ6KKpE41NFqxWX6Z0gpHOwzVrhzu6SRQQlrrbVAVtryF8yaMQK4BAbO F5TuUhIiispzw== From: Maxime Ripard Date: Tue, 31 Mar 2026 12:00:14 +0200 Subject: [PATCH v4 5/8] mm: cma: Export cma_alloc(), cma_release() and cma_get_name() 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-v4-5-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=1725; i=mripard@kernel.org; h=from:subject:message-id; bh=xA8iRNbldwAg/IWB0t2FyV0TtMeqN3qjpeDuNnBZW50=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDJmnZxsI6Xe+TK9UnDHRLtbgwJbFopPP/dhVv+PAg01Wv KlqiklLOqayMAhzMsiKKbI8kQk7vbx9cZWD/cofMHNYmUCGMHBxCsBF8hgbtnx+F7ySsWL5NZ33 X77yzKwUuPSl8MmbK3lWiivUzr24rTGP/7vkh/jCec+bJpT4bAq6yFjv1Wq+fqdSUluwTsHjJ6I O8u82se9i1/E6V3NMN+GgkFtuqU6d+a/K4162Bs6vj2RwXwYA 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, and cma_get_name() to get the name of the heap instance it's going to create. 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 Acked-by: David Hildenbrand (Arm) Signed-off-by: Maxime Ripard --- mm/cma.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/cma.c b/mm/cma.c index 94b5da468a7d719e5144d33b06bcc7619c0fbcc9..550effb9c4e01cc488b5744fe61= d55a5b70a6d6c 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -50,10 +50,11 @@ unsigned long cma_get_size(const struct cma *cma) =20 const char *cma_get_name(const struct cma *cma) { return cma->name; } +EXPORT_SYMBOL_GPL(cma_get_name); =20 static unsigned long cma_bitmap_aligned_mask(const struct cma *cma, unsigned int align_order) { if (align_order <=3D cma->order_per_bit) @@ -949,10 +950,11 @@ 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 +1027,11 @@ 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