linux-kernel - Re: [PATCH v2] char: agp: Change return type to vm_fault

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Message-ID: <CAFqt6zYqjrdB4V0WoeEDNd=U8_=-WX3RbbtSsOQEt_uakhFUxQ@mail.gmail.com>
Date:   Mon, 2 Jul 2018 22:18:14 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     airlied@...ux.ie
Cc:     Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
        Matthew Wilcox <willy@...radead.org>,
        Greg KH <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v2] char: agp: Change return type to vm_fault_t

On Mon, Jul 2, 2018 at 9:42 PM, Greg KH <gregkh@...uxfoundation.org> wrote:
> On Mon, Jul 02, 2018 at 09:33:19PM +0530, Souptick Joarder wrote:
>> On Mon, Jun 18, 2018 at 5:07 PM, Souptick Joarder <jrdr.linux@...il.com> wrote:
>> > On Thu, May 31, 2018 at 10:38 AM, Souptick Joarder <jrdr.linux@...il.com> wrote:
>> >> On Mon, May 21, 2018 at 11:47 PM, Souptick Joarder <jrdr.linux@...il.com> 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@...il.com>
>> >>> Reviewed-by: Matthew Wilcox <mawilcox@...rosoft.com>
>> >>> ---
>> >>>  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 ?
>
> I am not the agp maintainer, am I?  That would be David...

Sorry about it.


David, can we get this patch in queue for 4.19 ?