Merge "ion: remove unused function"

	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)

{