Re: [PATCH v2] char: agp: Change return type to vm_fault_t

From: Souptick Joarder
Date: Mon Jul 02 2018 - 12:03:25 EST


On Mon, Jun 18, 2018 at 5:07 PM, Souptick Joarder <jrdr.linux@xxxxxxxxx> wrote:
> On Thu, May 31, 2018 at 10:38 AM, Souptick Joarder <jrdr.linux@xxxxxxxxx> wrote:
>> On Mon, May 21, 2018 at 11:47 PM, 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") was added in 4.17-rc1 to introduce the new
>>> typedef vm_fault_t. Currently we are making change to all
>>> drivers to return vm_fault_t for page fault handlers. As
>>> part of that char/agp driver is also getting changed to
>>> return vm_fault_t type from fault handler.
>>>
>>> Signed-off-by: Souptick Joarder <jrdr.linux@xxxxxxxxx>
>>> Reviewed-by: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
>>> ---
>>> drivers/char/agp/alpha-agp.c | 2 +-
>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/char/agp/alpha-agp.c b/drivers/char/agp/alpha-agp.c
>>> index 53fe633..c9bf2c2 100644
>>> --- a/drivers/char/agp/alpha-agp.c
>>> +++ b/drivers/char/agp/alpha-agp.c
>>> @@ -11,7 +11,7 @@
>>>
>>> #include "agp.h"
>>>
>>> -static int alpha_core_agp_vm_fault(struct vm_fault *vmf)
>>> +static vm_fault_t alpha_core_agp_vm_fault(struct vm_fault *vmf)
>>> {
>>> alpha_agp_info *agp = agp_bridge->dev_private_data;
>>> dma_addr_t dma_addr;
>>> --
>>> 1.9.1
>>>
>>
>> Any comment for this patch ?
>
> Any further comment on this patch ?

Greg, Can we get this patch in queue for 4.19 ?