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SubjectRe: [PATCH] gpu: drm: drm_vm: Adding new typedef vm_fault_t
On Fri, May 25, 2018 at 02:00:33AM +0530, Souptick Joarder wrote:
> On Wed, May 16, 2018 at 10:09 AM, Souptick Joarder <jrdr.linux@gmail.com> wrote:
> > On Thu, May 10, 2018 at 7:12 PM, Souptick Joarder <jrdr.linux@gmail.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.
> >>
> >> commit 1c8f422059ae ("mm: change return type to vm_fault_t")
> >>
> >> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
> >> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
> >> ---
> >> drivers/gpu/drm/drm_vm.c | 10 +++++-----
> >> 1 file changed, 5 insertions(+), 5 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
> >> index 2660543..c330104 100644
> >> --- a/drivers/gpu/drm/drm_vm.c
> >> +++ b/drivers/gpu/drm/drm_vm.c
> >> @@ -100,7 +100,7 @@ static pgprot_t drm_dma_prot(uint32_t map_type, struct vm_area_struct *vma)
> >> * map, get the page, increment the use count and return it.
> >> */
> >> #if IS_ENABLED(CONFIG_AGP)
> >> -static int drm_vm_fault(struct vm_fault *vmf)
> >> +static vm_fault_t drm_vm_fault(struct vm_fault *vmf)
> >> {
> >> struct vm_area_struct *vma = vmf->vma;
> >> struct drm_file *priv = vma->vm_file->private_data;
> >> @@ -173,7 +173,7 @@ static int drm_vm_fault(struct vm_fault *vmf)
> >> return VM_FAULT_SIGBUS; /* Disallow mremap */
> >> }
> >> #else
> >> -static int drm_vm_fault(struct vm_fault *vmf)
> >> +static vm_fault_t drm_vm_fault(struct vm_fault *vmf)
> >> {
> >> return VM_FAULT_SIGBUS;
> >> }
> >> @@ -189,7 +189,7 @@ static int drm_vm_fault(struct vm_fault *vmf)
> >> * Get the mapping, find the real physical page to map, get the page, and
> >> * return it.
> >> */
> >> -static int drm_vm_shm_fault(struct vm_fault *vmf)
> >> +static vm_fault_t drm_vm_shm_fault(struct vm_fault *vmf)
> >> {
> >> struct vm_area_struct *vma = vmf->vma;
> >> struct drm_local_map *map = vma->vm_private_data;
> >> @@ -291,7 +291,7 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
> >> *
> >> * Determine the page number from the page offset and get it from drm_device_dma::pagelist.
> >> */
> >> -static int drm_vm_dma_fault(struct vm_fault *vmf)
> >> +static vm_fault_t drm_vm_dma_fault(struct vm_fault *vmf)
> >> {
> >> struct vm_area_struct *vma = vmf->vma;
> >> struct drm_file *priv = vma->vm_file->private_data;
> >> @@ -326,7 +326,7 @@ static int drm_vm_dma_fault(struct vm_fault *vmf)
> >> *
> >> * Determine the map offset from the page offset and get it from drm_sg_mem::pagelist.
> >> */
> >> -static int drm_vm_sg_fault(struct vm_fault *vmf)
> >> +static vm_fault_t drm_vm_sg_fault(struct vm_fault *vmf)
> >> {
> >> struct vm_area_struct *vma = vmf->vma;
> >> struct drm_local_map *map = vma->vm_private_data;
> >> --
> >> 1.9.1
> >>
> >
> > Daniel, if no further comment, we would like to get this patch
> > in queue for 4.18.
>
> We would like to get this in queue for 4.18.

Ok this dri1 legacy horrors, so I'm the fallback maintainer once more :-)

Merged, thanks for the patch.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

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