Messages in this thread Patch in this message | | | From | John Stultz <> | Subject | [RFC][PATCH 1/2] mm: cma: Export cma symbols for cma heap as a module | Date | Fri, 25 Oct 2019 23:48:33 +0000 |
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From: Sandeep Patil <sspatil@google.com>
Export cma_get_name, cma_alloc, cma_release, cma_for_each_area and dma_contiguous_default_area so that we can use these from the dmabuf cma heap when it is built as module.
Cc: Laura Abbott <labbott@redhat.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Liam Mark <lmark@codeaurora.org> Cc: Pratik Patel <pratikp@codeaurora.org> Cc: Brian Starkey <Brian.Starkey@arm.com> Cc: Andrew F. Davis <afd@ti.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yue Hu <huyue2@yulong.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Chenbo Feng <fengc@google.com> Cc: Alistair Strachan <astrachan@google.com> Cc: Sandeep Patil <sspatil@google.com> Cc: Hridya Valsaraju <hridya@google.com> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Sandeep Patil <sspatil@google.com> [jstultz: Rewrote commit message, added dma_contiguous_default_area to the set of exported symbols] Signed-off-by: John Stultz <john.stultz@linaro.org> --- kernel/dma/contiguous.c | 1 + mm/cma.c | 5 +++++ 2 files changed, 6 insertions(+)
diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c index 69cfb4345388..ff6cba63ea6f 100644 --- a/kernel/dma/contiguous.c +++ b/kernel/dma/contiguous.c @@ -31,6 +31,7 @@ #endif struct cma *dma_contiguous_default_area; +EXPORT_SYMBOL(dma_contiguous_default_area); /* * Default global CMA area size can be defined in kernel's .config. diff --git a/mm/cma.c b/mm/cma.c index 7fe0b8356775..db4642e58058 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -24,6 +24,7 @@ #include <linux/memblock.h> #include <linux/err.h> #include <linux/mm.h> +#include <linux/module.h> #include <linux/mutex.h> #include <linux/sizes.h> #include <linux/slab.h> @@ -54,6 +55,7 @@ const char *cma_get_name(const struct cma *cma) { return cma->name ? cma->name : "(undefined)"; } +EXPORT_SYMBOL_GPL(cma_get_name); static unsigned long cma_bitmap_aligned_mask(const struct cma *cma, unsigned int align_order) @@ -500,6 +502,7 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align, pr_debug("%s(): returned %p\n", __func__, page); return page; } +EXPORT_SYMBOL_GPL(cma_alloc); /** * cma_release() - release allocated pages @@ -533,6 +536,7 @@ bool cma_release(struct cma *cma, const struct page *pages, unsigned int count) return true; } +EXPORT_SYMBOL_GPL(cma_release); int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data) { @@ -547,3 +551,4 @@ int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data) return 0; } +EXPORT_SYMBOL_GPL(cma_for_each_area); -- 2.17.1
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