[PATCH 08/13] mm: introduce vma_get_page_prot() and use it
Thomas Zimmermann
tzimmermann at suse.de
Tue Jun 30 00:57:35 PDT 2026
Am 29.06.26 um 21:25 schrieb Lorenzo Stoakes:
> There's a large number of vm_get_page_prot(vma->vm_flags) invocations. Make
> life easier by introducing vma_get_page_prot() parameterised by the VMA.
>
> This also makes converting vm_get_page_prot() to vma_flags_t easier.
>
> Also update the userland VMA tests to reflect the change.
>
> No functional change intended.
>
> Signed-off-by: Lorenzo Stoakes <ljs at kernel.org>
For the DRM changes:
Reviewed-by: Thomas Zimmermann <tzimmermann at suse.de>
> ---
> drivers/gpu/drm/drm_gem.c | 2 +-
> drivers/gpu/drm/drm_gem_dma_helper.c | 2 +-
> drivers/gpu/drm/drm_gem_shmem_helper.c | 2 +-
> drivers/gpu/drm/etnaviv/etnaviv_gem.c | 2 +-
> drivers/gpu/drm/exynos/exynos_drm_gem.c | 6 +++---
> drivers/gpu/drm/i915/gem/i915_gem_mman.c | 12 ++++++------
> drivers/gpu/drm/msm/msm_gem.c | 2 +-
> drivers/gpu/drm/nouveau/nouveau_gem.c | 2 +-
> drivers/gpu/drm/omapdrm/omap_fbdev.c | 2 +-
> drivers/gpu/drm/omapdrm/omap_gem.c | 6 +++---
> drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 2 +-
> drivers/gpu/drm/tegra/gem.c | 2 +-
> drivers/gpu/drm/virtio/virtgpu_vram.c | 2 +-
> drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c | 2 +-
> drivers/gpu/drm/xe/xe_device.c | 2 +-
> drivers/gpu/drm/xe/xe_mmio_gem.c | 2 +-
> drivers/gpu/drm/xen/xen_drm_front_gem.c | 2 +-
> drivers/video/fbdev/core/fb_io_fops.c | 2 +-
> include/linux/mm.h | 10 +++++++++-
> mm/vma.c | 2 +-
> mm/vma_exec.c | 2 +-
> sound/core/memalloc.c | 2 +-
> tools/testing/vma/include/dup.h | 4 ++++
> 23 files changed, 43 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
> index e3ed684ddcf2..32a05d889b9a 100644
> --- a/drivers/gpu/drm/drm_gem.c
> +++ b/drivers/gpu/drm/drm_gem.c
> @@ -1252,7 +1252,7 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
> }
>
> vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP);
> - vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
> + vma->vm_page_prot = pgprot_writecombine(vma_get_page_prot(vma));
> vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot);
> }
>
> diff --git a/drivers/gpu/drm/drm_gem_dma_helper.c b/drivers/gpu/drm/drm_gem_dma_helper.c
> index 1c00a71ab3c9..7d9612075d31 100644
> --- a/drivers/gpu/drm/drm_gem_dma_helper.c
> +++ b/drivers/gpu/drm/drm_gem_dma_helper.c
> @@ -540,7 +540,7 @@ int drm_gem_dma_mmap(struct drm_gem_dma_object *dma_obj, struct vm_area_struct *
> vm_flags_mod(vma, VM_DONTDUMP | VM_DONTEXPAND, VM_PFNMAP);
>
> if (dma_obj->map_noncoherent) {
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
>
> ret = dma_mmap_pages(drm_dev_dma_dev(dma_obj->base.dev),
> vma, vma->vm_end - vma->vm_start,
> diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
> index c989459eb215..06d019d51d3e 100644
> --- a/drivers/gpu/drm/drm_gem_shmem_helper.c
> +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
> @@ -764,7 +764,7 @@ int drm_gem_shmem_mmap(struct drm_gem_shmem_object *shmem, struct vm_area_struct
> return ret;
>
> vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP);
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
> if (shmem->map_wc)
> vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
>
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> index 2e4d6d117ee2..f9c8b7b2bfc7 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> @@ -133,7 +133,7 @@ static int etnaviv_gem_mmap_obj(struct etnaviv_gem_object *etnaviv_obj,
>
> vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP);
>
> - vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vm_page_prot = vma_get_page_prot(vma);
>
> if (etnaviv_obj->flags & ETNA_BO_WC) {
> vma->vm_page_prot = pgprot_writecombine(vm_page_prot);
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
> index 9a6270f3dca6..0208c9259572 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
> @@ -377,13 +377,13 @@ static int exynos_drm_gem_mmap(struct drm_gem_object *obj, struct vm_area_struct
>
> /* non-cachable as default. */
> if (exynos_gem->flags & EXYNOS_BO_CACHABLE)
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
> else if (exynos_gem->flags & EXYNOS_BO_WC)
> vma->vm_page_prot =
> - pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
> + pgprot_writecombine(vma_get_page_prot(vma));
> else
> vma->vm_page_prot =
> - pgprot_noncached(vm_get_page_prot(vma->vm_flags));
> + pgprot_noncached(vma_get_page_prot(vma));
>
> ret = exynos_drm_gem_mmap_buffer(exynos_gem, vma);
> if (ret)
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
> index 0644f85c6c8e..9ca90c1bb5b4 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
> @@ -112,7 +112,7 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
> vma = find_vma(mm, addr);
> if (vma && __vma_matches(vma, obj->base.filp, addr, args->size))
> vma->vm_page_prot =
> - pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
> + pgprot_writecombine(vma_get_page_prot(vma));
> else
> addr = -ENOMEM;
> mmap_write_unlock(mm);
> @@ -1024,7 +1024,7 @@ i915_gem_object_mmap(struct drm_i915_gem_object *obj,
> fput(anon);
>
> if (obj->ops->mmap_ops) {
> - vma->vm_page_prot = pgprot_decrypted(vm_get_page_prot(vma->vm_flags));
> + vma->vm_page_prot = pgprot_decrypted(vma_get_page_prot(vma));
> vma->vm_ops = obj->ops->mmap_ops;
> vma->vm_private_data = obj->base.vma_node.driver_private;
> return 0;
> @@ -1035,7 +1035,7 @@ i915_gem_object_mmap(struct drm_i915_gem_object *obj,
> switch (mmo->mmap_type) {
> case I915_MMAP_TYPE_WC:
> vma->vm_page_prot =
> - pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
> + pgprot_writecombine(vma_get_page_prot(vma));
> vma->vm_ops = &vm_ops_cpu;
> break;
>
> @@ -1043,19 +1043,19 @@ i915_gem_object_mmap(struct drm_i915_gem_object *obj,
> GEM_WARN_ON(1);
> fallthrough;
> case I915_MMAP_TYPE_WB:
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
> vma->vm_ops = &vm_ops_cpu;
> break;
>
> case I915_MMAP_TYPE_UC:
> vma->vm_page_prot =
> - pgprot_noncached(vm_get_page_prot(vma->vm_flags));
> + pgprot_noncached(vma_get_page_prot(vma));
> vma->vm_ops = &vm_ops_cpu;
> break;
>
> case I915_MMAP_TYPE_GTT:
> vma->vm_page_prot =
> - pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
> + pgprot_writecombine(vma_get_page_prot(vma));
> vma->vm_ops = &vm_ops_gtt;
> break;
> }
> diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
> index cbf723a5d86f..6a78e242de7c 100644
> --- a/drivers/gpu/drm/msm/msm_gem.c
> +++ b/drivers/gpu/drm/msm/msm_gem.c
> @@ -1125,7 +1125,7 @@ static int msm_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct
> struct msm_gem_object *msm_obj = to_msm_bo(obj);
>
> vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP);
> - vma->vm_page_prot = msm_gem_pgprot(msm_obj, vm_get_page_prot(vma->vm_flags));
> + vma->vm_page_prot = msm_gem_pgprot(msm_obj, vma_get_page_prot(vma));
>
> return 0;
> }
> diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
> index 20dba02d6175..9a6ee2e880c0 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_gem.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
> @@ -55,7 +55,7 @@ static vm_fault_t nouveau_ttm_fault(struct vm_fault *vmf)
> goto error_unlock;
>
> nouveau_bo_del_io_reserve_lru(bo);
> - prot = vm_get_page_prot(vma->vm_flags);
> + prot = vma_get_page_prot(vma);
> ret = ttm_bo_vm_fault_reserved(vmf, prot, TTM_BO_VM_NUM_PREFAULT);
> nouveau_bo_add_io_reserve_lru(bo);
> if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT))
> diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c
> index ca3fb186bf19..4881777642d2 100644
> --- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
> +++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
> @@ -84,7 +84,7 @@ static int omap_fbdev_pan_display(struct fb_var_screeninfo *var, struct fb_info
>
> static int omap_fbdev_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
> {
> - vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
> + vma->vm_page_prot = pgprot_writecombine(vma_get_page_prot(vma));
>
> return fb_deferred_io_mmap(info, vma);
> }
> diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c
> index 00404fb6c29a..fb0e6f556b31 100644
> --- a/drivers/gpu/drm/omapdrm/omap_gem.c
> +++ b/drivers/gpu/drm/omapdrm/omap_gem.c
> @@ -538,9 +538,9 @@ static int omap_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struc
> vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP | VM_IO | VM_MIXEDMAP);
>
> if (omap_obj->flags & OMAP_BO_WC) {
> - vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
> + vma->vm_page_prot = pgprot_writecombine(vma_get_page_prot(vma));
> } else if (omap_obj->flags & OMAP_BO_UNCACHED) {
> - vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags));
> + vma->vm_page_prot = pgprot_noncached(vma_get_page_prot(vma));
> } else {
> /*
> * We do have some private objects, at least for scanout buffers
> @@ -558,7 +558,7 @@ static int omap_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struc
> vma->vm_pgoff -= drm_vma_node_start(&obj->vma_node);
> vma_set_file(vma, obj->filp);
>
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
> }
>
> vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot);
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
> index b188539dca0b..9a1dc9f12072 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
> @@ -255,7 +255,7 @@ static int rockchip_drm_gem_object_mmap(struct drm_gem_object *obj,
> */
> vm_flags_mod(vma, VM_IO | VM_DONTEXPAND | VM_DONTDUMP, VM_PFNMAP);
>
> - vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
> + vma->vm_page_prot = pgprot_writecombine(vma_get_page_prot(vma));
> vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot);
>
> if (rk_obj->pages)
> diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
> index 1d8d27a5ea89..f76af733ea79 100644
> --- a/drivers/gpu/drm/tegra/gem.c
> +++ b/drivers/gpu/drm/tegra/gem.c
> @@ -602,7 +602,7 @@ int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma)
>
> vma->vm_pgoff = vm_pgoff;
> } else {
> - pgprot_t prot = vm_get_page_prot(vma->vm_flags);
> + pgprot_t prot = vma_get_page_prot(vma);
>
> vm_flags_mod(vma, VM_MIXEDMAP, VM_PFNMAP);
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_vram.c b/drivers/gpu/drm/virtio/virtgpu_vram.c
> index 4ae3cbc35dd3..544a6abddbc8 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_vram.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_vram.c
> @@ -55,7 +55,7 @@ static int virtio_gpu_vram_mmap(struct drm_gem_object *obj,
>
> vma->vm_pgoff -= drm_vma_node_start(&obj->vma_node);
> vm_flags_set(vma, VM_MIXEDMAP | VM_DONTEXPAND);
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
> vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot);
> vma->vm_ops = &virtio_gpu_vram_vm_ops;
>
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c b/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c
> index 45561bc1c9ef..a9fd4015a0ca 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c
> @@ -481,7 +481,7 @@ vm_fault_t vmw_bo_vm_fault(struct vm_fault *vmf)
> if (vbo->dirty && vbo->dirty->method == VMW_BO_DIRTY_MKWRITE)
> prot = vm_get_page_prot(vma->vm_flags & ~VM_SHARED);
> else
> - prot = vm_get_page_prot(vma->vm_flags);
> + prot = vma_get_page_prot(vma);
>
> ret = ttm_bo_vm_fault_reserved(vmf, prot, num_prefault);
> if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT))
> diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
> index d224861b6f6f..758acaae85d3 100644
> --- a/drivers/gpu/drm/xe/xe_device.c
> +++ b/drivers/gpu/drm/xe/xe_device.c
> @@ -281,7 +281,7 @@ static vm_fault_t barrier_fault(struct vm_fault *vmf)
> pgprot_t prot;
> int idx;
>
> - prot = vm_get_page_prot(vma->vm_flags);
> + prot = vma_get_page_prot(vma);
>
> if (drm_dev_enter(dev, &idx)) {
> unsigned long pfn;
> diff --git a/drivers/gpu/drm/xe/xe_mmio_gem.c b/drivers/gpu/drm/xe/xe_mmio_gem.c
> index 8c803ef233cc..3741ae60f532 100644
> --- a/drivers/gpu/drm/xe/xe_mmio_gem.c
> +++ b/drivers/gpu/drm/xe/xe_mmio_gem.c
> @@ -149,7 +149,7 @@ static int xe_mmio_gem_mmap(struct drm_gem_object *base, struct vm_area_struct *
>
> /* Set vm_pgoff (used as a fake buffer offset by DRM) to 0 */
> vma->vm_pgoff = 0;
> - vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags));
> + vma->vm_page_prot = pgprot_noncached(vma_get_page_prot(vma));
> vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP |
> VM_DONTCOPY | VM_NORESERVE);
>
> diff --git a/drivers/gpu/drm/xen/xen_drm_front_gem.c b/drivers/gpu/drm/xen/xen_drm_front_gem.c
> index eec4c1da3f9e..dd158443f55f 100644
> --- a/drivers/gpu/drm/xen/xen_drm_front_gem.c
> +++ b/drivers/gpu/drm/xen/xen_drm_front_gem.c
> @@ -80,7 +80,7 @@ static int xen_drm_front_gem_object_mmap(struct drm_gem_object *gem_obj,
> * which is mapped as Normal Inner Write-Back Outer Write-Back
> * Inner-Shareable.
> */
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
>
> /*
> * vm_operations_struct.fault handler will be called if CPU access
> diff --git a/drivers/video/fbdev/core/fb_io_fops.c b/drivers/video/fbdev/core/fb_io_fops.c
> index 6ab60fcd0050..6d0a8c8e141a 100644
> --- a/drivers/video/fbdev/core/fb_io_fops.c
> +++ b/drivers/video/fbdev/core/fb_io_fops.c
> @@ -161,7 +161,7 @@ int fb_io_mmap(struct fb_info *info, struct vm_area_struct *vma)
> len = info->fix.mmio_len;
> }
>
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
> vma->vm_page_prot = pgprot_framebuffer(vma->vm_page_prot, vma->vm_start,
> vma->vm_end, start);
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index c8336f68d7bb..b55790c75038 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -4575,6 +4575,10 @@ static inline pgprot_t vma_flags_to_page_prot(vma_flags_t vma_flags)
> return vm_get_page_prot(vm_flags);
> }
>
> +static inline pgprot_t vma_get_page_prot(const struct vm_area_struct *vma)
> +{
> + return vma_flags_to_page_prot(vma->flags);
> +}
> void vma_set_page_prot(struct vm_area_struct *vma);
> #else
> static inline pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
> @@ -4585,9 +4589,13 @@ static inline pgprot_t vma_flags_to_page_prot(vma_flags_t vma_flags)
> {
> return __pgprot(0);
> }
> +static inline pgprot_t vma_get_page_prot(const struct vm_area_struct *vma)
> +{
> + return __pgprot(0);
> +}
> static inline void vma_set_page_prot(struct vm_area_struct *vma)
> {
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
> }
> #endif
>
> diff --git a/mm/vma.c b/mm/vma.c
> index fcdd2ac3ac68..b81c05e67a61 100644
> --- a/mm/vma.c
> +++ b/mm/vma.c
> @@ -3429,7 +3429,7 @@ struct vm_area_struct *__install_special_mapping(
> if (pgtable_supports_soft_dirty())
> vm_flags |= VM_SOFTDIRTY;
> vm_flags_init(vma, vm_flags & ~VM_LOCKED_MASK);
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
>
> vma->vm_ops = ops;
> vma->vm_private_data = priv;
> diff --git a/mm/vma_exec.c b/mm/vma_exec.c
> index c0f7ba2cfb27..b01c4964f2c9 100644
> --- a/mm/vma_exec.c
> +++ b/mm/vma_exec.c
> @@ -146,7 +146,7 @@ int create_init_stack_vma(struct mm_struct *mm, struct vm_area_struct **vmap,
> if (pgtable_supports_soft_dirty())
> flags |= VM_SOFTDIRTY;
> vm_flags_init(vma, flags);
> - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
> + vma->vm_page_prot = vma_get_page_prot(vma);
>
> err = insert_vm_struct(mm, vma);
> if (err)
> diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
> index 9320671dfcc8..5bc7e586b430 100644
> --- a/sound/core/memalloc.c
> +++ b/sound/core/memalloc.c
> @@ -851,7 +851,7 @@ static void snd_dma_noncoherent_free(struct snd_dma_buffer *dmab)
> static int snd_dma_noncoherent_mmap(struct snd_dma_buffer *dmab,
> struct vm_area_struct *area)
> {
> - area->vm_page_prot = vm_get_page_prot(area->vm_flags);
> + area->vm_page_prot = vma_get_page_prot(area);
> return dma_mmap_pages(dmab->dev.dev, area,
> area->vm_end - area->vm_start,
> virt_to_page(dmab->area));
> diff --git a/tools/testing/vma/include/dup.h b/tools/testing/vma/include/dup.h
> index 1ffac38a5377..d86bef8cb37f 100644
> --- a/tools/testing/vma/include/dup.h
> +++ b/tools/testing/vma/include/dup.h
> @@ -1577,3 +1577,7 @@ static inline pgoff_t linear_page_index(const struct vm_area_struct *vma,
> pgoff += vma_start_pgoff(vma);
> return pgoff;
> }
> +static inline pgprot_t vma_get_page_prot(const struct vm_area_struct *vma)
> +{
> + return vma_flags_to_page_prot(vma->flags);
> +}
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, Werner Knoblich, (HRB 36809, AG Nürnberg)
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