dma-buf: heaps: system: Turn the heap into a module

The system heap can be easily turned into a module by adding the usual
MODULE_* macros, importing the proper namespaces and changing 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-v5-3-b6f5678feefc@kernel.org

diff --git a/drivers/dma-buf/heaps/Kconfig b/drivers/dma-buf/heaps/Kconfig
index aed0b9b4febf388376cfc41be9843980d010c4e8..e273fb18feca091ccd9b406e68f86c12efb339e9 100644 (file)
--- a/drivers/dma-buf/heaps/Kconfig
+++ b/drivers/dma-buf/heaps/Kconfig
@@ -1,5 +1,5 @@
 config DMABUF_HEAPS_SYSTEM
-       bool "DMA-BUF System Heap"
+       tristate "DMA-BUF System Heap"
        depends on DMABUF_HEAPS
        help
          Choose this option to enable the system dmabuf heap. The system heap

diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c
index 03c2b87cb111262f34d7413345b8cfb637ceb5fd..c92bdec356fcc688a49bdc43365b769ed5fb10f2 100644 (file)
--- a/drivers/dma-buf/heaps/system_heap.c
+++ b/drivers/dma-buf/heaps/system_heap.c
@@ -537,3 +537,8 @@ static int __init system_heap_create(void)
        return 0;
 }
 module_init(system_heap_create);
+
+MODULE_DESCRIPTION("DMA-BUF System Heap");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("DMA_BUF");
+MODULE_IMPORT_NS("DMA_BUF_HEAP");