[PATCH 2/2] dma-buf: update exp_name when using dma_buf_export()

Daniel Vetter daniel at ffwll.ch
Thu Apr 10 00:46:15 PDT 2014


On Thu, Apr 10, 2014 at 01:30:06AM +0200, Javier Martinez Canillas wrote:
> commit c0b00a5 ("dma-buf: update debugfs output") modified the
> default exporter name to be the KBUILD_MODNAME pre-processor
> macro instead of __FILE__ but the documentation was not updated.
> 
> Also the "Supporting existing mmap interfaces in exporters" section
> title seems wrong since talks about the interface used by importers.
> 
> Signed-off-by: Javier Martinez Canillas <javier.martinez at collabora.co.uk>

Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> ---
>  Documentation/dma-buf-sharing.txt | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/dma-buf-sharing.txt b/Documentation/dma-buf-sharing.txt
> index 505e711..7d61cef 100644
> --- a/Documentation/dma-buf-sharing.txt
> +++ b/Documentation/dma-buf-sharing.txt
> @@ -66,7 +66,7 @@ The dma_buf buffer sharing API usage contains the following steps:
>  
>     Exporting modules which do not wish to provide any specific name may use the
>     helper define 'dma_buf_export()', with the same arguments as above, but
> -   without the last argument; a __FILE__ pre-processor directive will be
> +   without the last argument; a KBUILD_MODNAME pre-processor directive will be
>     inserted in place of 'exp_name' instead.
>  
>  2. Userspace gets a handle to pass around to potential buffer-users
> @@ -352,7 +352,7 @@ Being able to mmap an export dma-buf buffer object has 2 main use-cases:
>  
>     No special interfaces, userspace simply calls mmap on the dma-buf fd.
>  
> -2. Supporting existing mmap interfaces in exporters
> +2. Supporting existing mmap interfaces in importers
>  
>     Similar to the motivation for kernel cpu access it is again important that
>     the userspace code of a given importing subsystem can use the same interfaces
> -- 
> 1.9.0
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch


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