[CC CMA people]
On Thu 09-02-17 17:39:17, Maxime Ripard wrote:
> Modules might want to check their CMA pool size and address for debugging
> and / or have additional checks.
>
> The obvious way to do this would be through dev_get_cma_area and
> cma_get_base and cma_get_size, that are currently not exported, which
> results in a build failure.
>
> Export them to prevent such a failure.
Who actually uses those exports. None of the follow up patches does
AFAICS.
> Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
> ---
> drivers/base/dma-contiguous.c | 1 +
> mm/cma.c | 2 ++
> 2 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c
> index e167a1e1bccb..60f5c2591ccd 100644
> --- a/drivers/base/dma-contiguous.c
> +++ b/drivers/base/dma-contiguous.c
> @@ -35,6 +35,7 @@
> #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 c960459eda7e..b50245282a18 100644
> --- a/mm/cma.c
> +++ b/mm/cma.c
> @@ -47,11 +47,13 @@ phys_addr_t cma_get_base(const struct cma *cma)
> {
> return PFN_PHYS(cma->base_pfn);
> }
> +EXPORT_SYMBOL(cma_get_base);
>
> unsigned long cma_get_size(const struct cma *cma)
> {
> return cma->count << PAGE_SHIFT;
> }
> +EXPORT_SYMBOL(cma_get_size);
>
> static unsigned long cma_bitmap_aligned_mask(const struct cma *cma,
> int align_order)
> --
> git-series 0.8.11
>
> --
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--
Michal Hocko
SUSE Labs
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