From nobody Wed Apr 1 13:50:17 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 C73323A5E91; Tue, 31 Mar 2026 10:00:30 +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=1774951230; cv=none; b=FWyJJnhhxAUkMXuVWPIxYCwj+cQk9tDQk72TxTxpruXzHU2f5K+L5mAJHkHJSMs65qcDm5eW8xguMRrFwkw9srcLVuARPva07ZCznD9owBowTp1qDlTu+m+lwt1Y7Pki1YBKjL8UDrcUT3ypC35CSxBlTFjLwt0LKCYHxNLote0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774951230; c=relaxed/simple; bh=FW0dQAbf77gP2JI3DUHh/5HKOkFfWCP2QQfOOyILTUY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Yy0BGTO9+9HzL7qAnYDhVXtrblayP3pUuG4NufkiQJMpE9iygTNjF3dSbXMIevhqfi7hTDyjmsLQr+OLUFYqBoN1zotrwQF1U1aQQ3TqKBEHd/Ci0pFStwzSg6LcjDZ04U6FR4naK2kDG3L0bpjMoVxGPhUlUQAro2YilmWoZTE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OoUjbDYI; 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="OoUjbDYI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0EBE4C2BCB3; Tue, 31 Mar 2026 10:00:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774951230; bh=FW0dQAbf77gP2JI3DUHh/5HKOkFfWCP2QQfOOyILTUY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=OoUjbDYIQaQ3VSdGFwz8NRODvH9y/n3Kkmc5lP4aaipNKjSHtzPw5pFG8oZBl2/gI 5mK06fcq0AcR6L/LGS4bToqUCyKZUejqaLW7JzoKZlbCefXVWzV45V9IpFIlfqucWl 6nsG2TRceTEHqy6fbfjhcfWv90GPOEt027/3adzAiymJ6u8qygO+SCe2Xpzv4OtN77 QRFrJ/2Ex/myw6Zu3odAvIdWHW4MEE/uPKHyHmWn1IFAStzHxyVvrvqN7PoNpIGwgY OnEKmBZU/HrGi4Vpb1ux4jkASJ8SYex354JGDwvITT1XtE85z3C8XOXtu6fwXR8FEn AAHytpNI+yrjQ== From: Maxime Ripard Date: Tue, 31 Mar 2026 12:00:12 +0200 Subject: [PATCH v4 3/8] dma: contiguous: Make dma_contiguous_default_area static 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-v4-3-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=1745; i=mripard@kernel.org; h=from:subject:message-id; bh=FW0dQAbf77gP2JI3DUHh/5HKOkFfWCP2QQfOOyILTUY=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDJmnZ+s/e/ZI4PqR9yY/Xv2e9P7GTx+Hqt23ZZsm/t3/8 m7MtzMvkzqmsjAIczLIiimyPJEJO728fXGVg/3KHzBzWJlAhjBwcQrARK5xMtb7e4p+fx8c3r9n ecNvh6Ritgs5Ik+WW3MbPvTVv72DR1/owof492YHrXdNEOpep3SVlYOxTl/UReeju8LsBc7JSjd Vp3o+v/dEV6GB+ckzZz7BWqd/l3UkL1xIyn4UvvJHes76jRlKAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D Now that dev_get_cma_area() is no longer inline, we don't have any user of dma_contiguous_default_area() outside of contiguous.c so we can make it static. Signed-off-by: Maxime Ripard --- include/linux/dma-map-ops.h | 2 -- kernel/dma/contiguous.c | 2 +- 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/include/linux/dma-map-ops.h b/include/linux/dma-map-ops.h index 8604106c0c01b6a9dadc45263f3b1d9ecfacd4aa..bef279ebeae7de59dd504e631f4= 7c64d7e223736 100644 --- a/include/linux/dma-map-ops.h +++ b/include/linux/dma-map-ops.h @@ -89,12 +89,10 @@ static inline void set_dma_ops(struct device *dev, { } #endif /* CONFIG_ARCH_HAS_DMA_OPS */ =20 #ifdef CONFIG_DMA_CMA -extern struct cma *dma_contiguous_default_area; - struct cma *dev_get_cma_area(struct device *dev); struct cma *dma_contiguous_get_area_by_idx(unsigned int idx); =20 void dma_contiguous_reserve(phys_addr_t addr_limit); int __init dma_contiguous_reserve_area(phys_addr_t size, phys_addr_t base, diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c index 40a0ead24979cfdf25e4779545536a5438e26356..fd8d3518a2323f0a631fb185ef9= 2a24c35f8d25d 100644 --- a/kernel/dma/contiguous.c +++ b/kernel/dma/contiguous.c @@ -81,11 +81,11 @@ struct cma *dma_contiguous_get_area_by_idx(unsigned int= idx) =20 return dma_contiguous_areas[idx]; } EXPORT_SYMBOL_GPL(dma_contiguous_get_area_by_idx); =20 -struct cma *dma_contiguous_default_area; +static struct cma *dma_contiguous_default_area; =20 /* * Default global CMA area size can be defined in kernel's .config. * This is useful mainly for distro maintainers to create a kernel * that works correctly for most supported systems. --=20 2.53.0