On Fri, Jun 1, 2018 at 5:18 PM, Christian König
<christian.koenig@xxxxxxx> wrote:
> Am 31.05.2018 um 07:07 schrieb Souptick Joarder:
>>
>> On Thu, May 24, 2018 at 12:25 AM, Souptick Joarder <jrdr.linux@xxxxxxxxx>
>> wrote:
>>>
>>> Use new return type vm_fault_t for fault handler. For
>>> now, this is just documenting that the function returns
>>> a VM_FAULT value rather than an errno. Once all instances
>>> are converted, vm_fault_t will become a distinct type.
>>>
>>> Ref-> commit 1c8f422059ae ("mm: change return type to vm_fault_t")
>>>
>>> Previously vm_insert_{mixed,pfn} returns err which driver
>>> mapped into VM_FAULT_* type. The new function
>>> vmf_insert_{mixed,pfn} will replace this inefficiency by
>>> returning VM_FAULT_* type.
>>>
>>> Signed-off-by: Souptick Joarder <jrdr.linux@xxxxxxxxx>
>>> ---
>>> drivers/gpu/drm/ttm/ttm_bo_vm.c | 45
>>> ++++++++++++++++++++---------------------
>>> 1 file changed, 22 insertions(+), 23 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c
>>> b/drivers/gpu/drm/ttm/ttm_bo_vm.c
>>> index 8eba95b..2d13f03 100644
>>> --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
>>> +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
>>> @@ -43,10 +43,11 @@
>>>
>>> #define TTM_BO_VM_NUM_PREFAULT 16
>>>
>>> -static int ttm_bo_vm_fault_idle(struct ttm_buffer_object *bo,
>>> +static vm_fault_t ttm_bo_vm_fault_idle(struct ttm_buffer_object *bo,
>>> struct vm_fault *vmf)
>>> {
>>> - int ret = 0;
>>> + int err = 0;
>>> + vm_fault_t ret = 0;
>
>
> Please keep reverse xmas tree order for variable declarations.
>
> Except for that it looks good to me,
> Christian.
>
Sure, I will send v2. We would like to get this patch in
queue for 4.18.
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