gpu: drm: omapdrm: Adding new typedef vm_fault_t
authorSouptick Joarder <jrdr.linux@gmail.com>
Tue, 22 May 2018 18:13:57 +0000 (23:43 +0530)
committerTomi Valkeinen <tomi.valkeinen@ti.com>
Thu, 28 Jun 2018 10:41:05 +0000 (13:41 +0300)
commit6ada1328642b8ffc25917c89569d3e16354b43d2
tree6d98fffc3e24973b1ea482c617f1c23cc95e9b51
parent7daf201d7fe8334e2d2364d4e8ed3394ec9af819
gpu: drm: omapdrm: Adding new typedef vm_fault_t

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() returns err which driver
mapped into VM_FAULT_* type. Also return value of
vm_insert_mixed() not handled correctly and 0 was
returned inside fault_2d() as default. The new function
vmf_insert_mixed() will replace this inefficiency by
returning correct VM_FAULT_* type.

vmf_error() is the newly introduce inline function
in 4.17-rc6.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
drivers/gpu/drm/omapdrm/omap_gem.c
drivers/gpu/drm/omapdrm/omap_gem.h