[PATCH] dma-buf: fence debugging

[Gustavo Padovan]

Hi Russell,

2017-03-31 Russell King <rmk+kernel at arm.linux.org.uk>:

> Add debugfs output to report shared and exclusive fences on a dma_buf
> object.  This produces output such as:
> 
> Dma-buf Objects:
> size    flags   mode    count   exp_name
> 08294400        00000000        00000005        00000005        drm
>         Exclusive fence: etnaviv 134000.gpu signalled
>         Attached Devices:
>         gpu-subsystem
> Total 1 devices attached
> 
> 
> Total 1 objects, 8294400 bytes
> 
> 
> Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
> ---
>  drivers/dma-buf/dma-buf.c | 34 +++++++++++++++++++++++++++++++++-
>  1 file changed, 33 insertions(+), 1 deletions(-)

Applied to to drm-misc-next.

> 
> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
> index 0007b792827b..f72aaacbe023 100644
> --- a/drivers/dma-buf/dma-buf.c
> +++ b/drivers/dma-buf/dma-buf.c
> @@ -1059,7 +1059,11 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused)
>  	int ret;
>  	struct dma_buf *buf_obj;
>  	struct dma_buf_attachment *attach_obj;
> -	int count = 0, attach_count;
> +	struct reservation_object *robj;
> +	struct reservation_object_list *fobj;
> +	struct dma_fence *fence;
> +	unsigned seq;

Our maintainer tools warned about this line, so I made it "unsigned
int"

Gustavo