From 7794ec7774066eb12af67a0a756bddd66f2d50f8 Mon Sep 17 00:00:00 2001 From: Souptick Joarder Date: Mon, 30 Jul 2018 11:52:31 +0100 Subject: drm/armada: Adding new typedef vm_fault_t Use new return type vm_fault_t for fault handler in struct vm_operations_struct. 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") Previously vm_insert_pfn() returns err which driver mapped into VM_FAULT_* type. The new function vmf_insert_pfn() will replace this inefficiency by returning VM_FAULT_* type. Signed-off-by: Souptick Joarder Reviewed-by: Matthew Wilcox Signed-off-by: Russell King --- drivers/gpu/drm/armada/armada_gem.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers/gpu/drm/armada') diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c index 3fb37c75c065..892c1d9304bb 100644 --- a/drivers/gpu/drm/armada/armada_gem.c +++ b/drivers/gpu/drm/armada/armada_gem.c @@ -13,25 +13,14 @@ #include #include "armada_ioctlP.h" -static int armada_gem_vm_fault(struct vm_fault *vmf) +static vm_fault_t armada_gem_vm_fault(struct vm_fault *vmf) { struct drm_gem_object *gobj = vmf->vma->vm_private_data; struct armada_gem_object *obj = drm_to_armada_gem(gobj); unsigned long pfn = obj->phys_addr >> PAGE_SHIFT; - int ret; pfn += (vmf->address - vmf->vma->vm_start) >> PAGE_SHIFT; - ret = vm_insert_pfn(vmf->vma, vmf->address, pfn); - - switch (ret) { - case 0: - case -EBUSY: - return VM_FAULT_NOPAGE; - case -ENOMEM: - return VM_FAULT_OOM; - default: - return VM_FAULT_SIGBUS; - } + return vmf_insert_pfn(vmf->vma, vmf->address, pfn); } const struct vm_operations_struct armada_gem_vm_ops = { -- cgit v1.2.3