media: videobuf2: Move frame_vector into media subsystem

It's the only user. This also garbage collects the CONFIG_FRAME_VECTOR
symbol from all over the tree (well just one place, somehow omap media
driver still had this in its Kconfig, despite not using it).

Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Pawel Osciak <pawel@osciak.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Tomasz Figa <tfiga@chromium.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linux-mm@kvack.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20201127164131.2244124-7-daniel.vetter@ffwll.ch

1 files changed, 0 insertions, 42 deletions

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 2e7b1d048df9..049439b65553 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1754,48 +1754,6 @@ int account_locked_vm(struct mm_struct *mm, unsigned long pages, bool inc);
 int __account_locked_vm(struct mm_struct *mm, unsigned long pages, bool inc,
 			struct task_struct *task, bool bypass_rlim);
 
-/* Container for pinned pfns / pages */
-struct frame_vector {
-	unsigned int nr_allocated;	/* Number of frames we have space for */
-	unsigned int nr_frames;	/* Number of frames stored in ptrs array */
-	bool got_ref;		/* Did we pin pages by getting page ref? */
-	bool is_pfns;		/* Does array contain pages or pfns? */
-	void *ptrs[];		/* Array of pinned pfns / pages. Use
-				 * pfns_vector_pages() or pfns_vector_pfns()
-				 * for access */
-};
-
-struct frame_vector *frame_vector_create(unsigned int nr_frames);
-void frame_vector_destroy(struct frame_vector *vec);
-int get_vaddr_frames(unsigned long start, unsigned int nr_pfns,
-		     struct frame_vector *vec);
-void put_vaddr_frames(struct frame_vector *vec);
-int frame_vector_to_pages(struct frame_vector *vec);
-void frame_vector_to_pfns(struct frame_vector *vec);
-
-static inline unsigned int frame_vector_count(struct frame_vector *vec)
-{
-	return vec->nr_frames;
-}
-
-static inline struct page **frame_vector_pages(struct frame_vector *vec)
-{
-	if (vec->is_pfns) {
-		int err = frame_vector_to_pages(vec);
-
-		if (err)
-			return ERR_PTR(err);
-	}
-	return (struct page **)(vec->ptrs);
-}
-
-static inline unsigned long *frame_vector_pfns(struct frame_vector *vec)
-{
-	if (!vec->is_pfns)
-		frame_vector_to_pfns(vec);
-	return (unsigned long *)(vec->ptrs);
-}
-
 struct kvec;
 int get_kernel_pages(const struct kvec *iov, int nr_pages, int write,
 			struct page **pages);