[Nouveau] [PATCH mesa] clover: Fix pipe_grid_info.indirect not being initialized

Samuel Pitoiset samuel.pitoiset at gmail.com
Mon Mar 14 13:01:29 UTC 2016



On 03/14/2016 01:50 PM, Hans de Goede wrote:
> After pipe_grid_info.indirect was introduced, clover was not modified
> to set it causing it to pass uninitialized memory for it to launch_grid.
>
> This commit fixes this by zero-ing the entire pipe_grid_info struct when
> declaring it, to avoid similar problems popping-up in the future.
>
> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
> ---
>   src/gallium/state_trackers/clover/core/kernel.cpp | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/src/gallium/state_trackers/clover/core/kernel.cpp b/src/gallium/state_trackers/clover/core/kernel.cpp
> index 8396be9..dad66aa 100644
> --- a/src/gallium/state_trackers/clover/core/kernel.cpp
> +++ b/src/gallium/state_trackers/clover/core/kernel.cpp
> @@ -55,7 +55,7 @@ kernel::launch(command_queue &q,
>      const auto reduced_grid_size =
>         map(divides(), grid_size, block_size);
>      void *st = exec.bind(&q, grid_offset);
> -   struct pipe_grid_info info;
> +   struct pipe_grid_info info = { 0, };

Right, good catch, it's my fault.

= { 0 }; is enough btw.

This should be backported to mesa 11.2 I guess, could you please send a 
v2 with this minor fix and add the cc thing?

Thanks.

>
>      // The handles are created during exec_context::bind(), so we need make
>      // sure to call exec_context::bind() before retrieving them.
>

-- 
-Samuel


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