[Mesa-dev] [PATCH] gbm/dri: Fix sign-extension in modifier query

[Emil Velikov]

On 3 May 2017 at 15:18, Daniel Stone <daniel at fooishbar.org> wrote:
> On 3 May 2017 at 15:15, Emil Velikov <emil.l.velikov at gmail.com> wrote:
>> On 2 May 2017 at 19:49, Daniel Stone <daniels at collabora.com> wrote:
>>> -   ret |= mod;
>>> +   ret |= (uint64_t)(mod & 0xffffffff);
>>>
>> I was itching to suggest the following from the start, but your patch
>> also works ;-)
>> Fixes: 8378c576abd ("gbm: Export a get modifiers")
>> Reviewed-by: Emil Velikov <emil.velikov at collabora.com>
>>
>>     return (uint64_t)mod_hi << 32 | (uint64_t)mod_lo & 0xffffffff;
>
> Thanks Emil! I already pushed with Ben's R-b last night, as it was a
> fairly critical fix for anyone using the new ABI. I'll try to be more
> careful about using the 'Fixes' tags in future. :(
>
No problems, Dan. Forwarding to mesa-stable@ - so we don't miss it
where it matters.

-Emil