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Commit a6a15e3f authored by Mitchel Humpherys's avatar Mitchel Humpherys
Browse files

ion: remove unused function 



Somehow, during [83c50939 gpu: ion: optimize zero'ing of pages] we
retained some cruft. Remove it.

Change-Id: I38f2ef5d6cd1baa3fe8a758a0bf8164695e2b657
Signed-off-by: default avatarMitchel Humpherys <mitchelh@codeaurora.org>
parent 2d37de8c

drivers/gpu/ion/ion_heap.c

+0 −37
Original line number Diff line number Diff line
@@ -240,43 +240,6 @@ int ion_heap_buffer_zero(struct ion_buffer *buffer) 
	return ret;

}



int ion_heap_buffer_zero_old(struct ion_buffer *buffer)

{

	struct sg_table *table = buffer->sg_table;

	pgprot_t pgprot;

	struct scatterlist *sg;

	struct vm_struct *vm_struct;

	int i, j, ret = 0;



	if (buffer->flags & ION_FLAG_CACHED)

		pgprot = PAGE_KERNEL;

	else

		pgprot = pgprot_writecombine(PAGE_KERNEL);



	vm_struct = get_vm_area(PAGE_SIZE, VM_ALLOC);

	if (!vm_struct)

		return -ENOMEM;



	for_each_sg(table->sgl, sg, table->nents, i) {

		struct page *page = sg_page(sg);

		unsigned long len = sg_dma_len(sg);



		for (j = 0; j < len / PAGE_SIZE; j++) {

			struct page *sub_page = page + j;

			struct page **pages = &sub_page;

			ret = map_vm_area(vm_struct, pgprot, &pages);

			if (ret)

				goto end;

			memset(vm_struct->addr, 0, PAGE_SIZE);

			unmap_kernel_range((unsigned long)vm_struct->addr,

					   PAGE_SIZE);

		}

	}

end:

	free_vm_area(vm_struct);

	return ret;

}



void ion_heap_free_page(struct ion_buffer *buffer, struct page *page,

		       unsigned int order)

{