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| author | Maxime Ripard <mripard@kernel.org> | 2026-04-27 12:04:58 +0200 |
|---|---|---|
| committer | Sumit Semwal <sumit.semwal@linaro.org> | 2026-05-21 20:57:15 +0530 |
| commit | 10bb37fc624cfcc1d10e0ebfc1b829401abba91e (patch) | |
| tree | 1b50bdd62505f61f608784a3195e7795bbb42578 | |
| parent | f78a0607c8bf6912943527175db61996436d5792 (diff) | |
| download | linux-10bb37fc624cfcc1d10e0ebfc1b829401abba91e.tar.gz linux-10bb37fc624cfcc1d10e0ebfc1b829401abba91e.zip | |
dma-buf: heaps: cma: Turn the heap into a module
All the symbols used by the CMA heap are already exported, so turning it
into a module is straightforward. We only need to add the usual MODULE_*
macros, import the proper namespaces and change the Kconfig symbol to a
tristate.
This heap won't be able to unload though, since we're missing a lot of
infrastructure to make it safe.
Reviewed-by: T.J. Mercier <tjmercier@google.com>
Acked-by: Andrew Davis <afd@ti.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patch.msgid.link/20260427-dma-buf-heaps-as-modules-v5-2-b6f5678feefc@kernel.org
| -rw-r--r-- | drivers/dma-buf/heaps/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/dma-buf/heaps/cma_heap.c | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/dma-buf/heaps/Kconfig b/drivers/dma-buf/heaps/Kconfig index a5eef06c4226..aed0b9b4febf 100644 --- a/drivers/dma-buf/heaps/Kconfig +++ b/drivers/dma-buf/heaps/Kconfig @@ -6,7 +6,7 @@ config DMABUF_HEAPS_SYSTEM is backed by pages from the buddy allocator. If in doubt, say Y. config DMABUF_HEAPS_CMA - bool "DMA-BUF CMA Heap" + tristate "DMA-BUF CMA Heap" depends on DMABUF_HEAPS && DMA_CMA help Choose this option to enable dma-buf CMA heap. This heap is backed diff --git a/drivers/dma-buf/heaps/cma_heap.c b/drivers/dma-buf/heaps/cma_heap.c index a359aac45579..3fb4b946c91a 100644 --- a/drivers/dma-buf/heaps/cma_heap.c +++ b/drivers/dma-buf/heaps/cma_heap.c @@ -420,3 +420,6 @@ static int __init add_cma_heaps(void) } module_init(add_cma_heaps); MODULE_DESCRIPTION("DMA-BUF CMA Heap"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("DMA_BUF"); +MODULE_IMPORT_NS("DMA_BUF_HEAP"); |