On 2/27/26 14:15, Maxime Ripard wrote:
> The CMA dma-buf heap uses cma_alloc() and cma_release() to allocate and
> free, respectively, its CMA buffers.
>
> However, these functions are not exported. Since we want to turn the CMA
> heap into a module, let's export them both.
>
> Reviewed-by: T.J. Mercier <tjmercier@google.com>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
> ---
> mm/cma.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/mm/cma.c b/mm/cma.c
> index 94b5da468a7d719e5144d33b06bcc7619c0fbcc9..be142b473f3bd41b9c7d8ba4397f018f6993d962 100644
> --- a/mm/cma.c
> +++ b/mm/cma.c
> @@ -949,10 +949,11 @@ struct page *cma_alloc(struct cma *cma, unsigned long count,
> if (page)
> set_pages_refcounted(page, count);
>
> return page;
> }
> +EXPORT_SYMBOL_GPL(cma_alloc);
>
> static struct cma_memrange *find_cma_memrange(struct cma *cma,
> const struct page *pages, unsigned long count)
> {
> struct cma_memrange *cmr = NULL;
> @@ -1025,10 +1026,11 @@ bool cma_release(struct cma *cma, const struct page *pages,
>
> __cma_release_frozen(cma, cmr, pages, count);
>
> return true;
> }
> +EXPORT_SYMBOL_GPL(cma_release);
>
> bool cma_release_frozen(struct cma *cma, const struct page *pages,
> unsigned long count)
> {
> struct cma_memrange *cmr;
>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
--
Cheers,
David