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authorMaxime Ripard <mripard@kernel.org>2026-03-31 12:00:11 +0200
committerMarek Szyprowski <m.szyprowski@samsung.com>2026-03-31 13:27:20 +0200
commitb3707be95f045c4e526e419435af29dc9dd1c267 (patch)
tree08dc43c294dbf93591f1601751ea73e34c4f6705 /include/linux
parent25bd73562941b04cfba1a278d8c84f2b1c69b8e9 (diff)
dma: contiguous: Make dev_get_cma_area() a proper function
As we try to enable dma-buf heaps, and the CMA one in particular, to compile as modules, we need to export dev_get_cma_area(). It's currently implemented as an inline function that returns either the content of device->cma_area or dma_contiguous_default_area. Thus, it means we need to export dma_contiguous_default_area, which isn't really something we want any module to have access to. Instead, let's make dev_get_cma_area() a proper function we will be able to export so we can avoid exporting dma_contiguous_default_area. Signed-off-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20260331-dma-buf-heaps-as-modules-v4-2-e18fda504419@kernel.org
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/dma-map-ops.h7
1 files changed, 1 insertions, 6 deletions
diff --git a/include/linux/dma-map-ops.h b/include/linux/dma-map-ops.h
index c4c93c72ff6f..8604106c0c01 100644
--- a/include/linux/dma-map-ops.h
+++ b/include/linux/dma-map-ops.h
@@ -93,12 +93,7 @@ static inline void set_dma_ops(struct device *dev,
#ifdef CONFIG_DMA_CMA
extern struct cma *dma_contiguous_default_area;
-static inline struct cma *dev_get_cma_area(struct device *dev)
-{
- if (dev && dev->cma_area)
- return dev->cma_area;
- return dma_contiguous_default_area;
-}
+struct cma *dev_get_cma_area(struct device *dev);
struct cma *dma_contiguous_get_area_by_idx(unsigned int idx);
void dma_contiguous_reserve(phys_addr_t addr_limit);