[PATCH 08/13] mm: introduce vma_get_page_prot() and use it
From: Lorenzo Stoakes <ljs@kernel.org>
Date: 2026-06-29 19:26:22
Also in:
dri-devel, intel-gfx, intel-xe, linux-arm-msm, linux-fsdevel, linux-mips, linux-mm, linux-samsung-soc, linux-sound, linux-tegra, linuxppc-dev, lkml, nouveau, virtualization, xen-devel
Subsystem:
arm/rockchip soc support, drm driver for nvidia geforce/quadro gpus, drm driver for vmware virtual gpu, drm driver for qualcomm display hardware, drm drivers, drm drivers and misc gpu patches, drm drivers for exynos, drm drivers for nvidia tegra, drm drivers for rockchip, drm drivers for ti omap, drm drivers for vivante gpu ip, drm drivers for xen, exec & binfmt api, elf, framebuffer core, framebuffer layer, intel drm i915 driver (meteor lake, dg2 and older excluding poulsbo, moorestown and derivative), intel drm xe driver (lunar lake and newer), memory management, memory management - core, memory mapping, sound, the rest, virtio gpu driver · Maintainers:
Heiko Stuebner, Lyude Paul, Danilo Krummrich, Zack Rusin, Rob Clark, Dmitry Baryshkov, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Inki Dae, Seung-Woo Kim, Kyungmin Park, Thierry Reding, Mikko Perttunen, Sandy Huang, Heiko Stübner, Andy Yan, Tomi Valkeinen, Lucas Stach, Oleksandr Andrushchenko, Kees Cook, Helge Deller, Jani Nikula, Joonas Lahtinen, Rodrigo Vivi, Tvrtko Ursulin, Matthew Brost, Thomas Hellström, Andrew Morton, David Hildenbrand, Liam R. Howlett, Lorenzo Stoakes, Jaroslav Kysela, Takashi Iwai, Linus Torvalds, Gerd Hoffmann, Dmitry Osipenko
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@kernel.org> --- 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); +}
--
2.54.0