Merge "ion: Fix API changes in dma-buf-ref.c"

void dma_buf_ref_mod(struct msm_dma_buf *msm_dma_buf, int nr)

{

	unsigned long entries[DMA_BUF_STACK_DEPTH];

	struct stack_trace trace = {

		.nr_entries = 0,

		.entries = entries,

		.max_entries = DMA_BUF_STACK_DEPTH,

		.skip = 1

	};

	int nr_entries;

	depot_stack_handle_t handle;

	save_stack_trace(&trace);

	if (trace.nr_entries != 0 &&

	    trace.entries[trace.nr_entries-1] == ULONG_MAX)

		trace.nr_entries--;

	nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 1);

	if (nr_entries != 0 && entries[nr_entries - 1] == ULONG_MAX)

		nr_entries--;

	handle = depot_save_stack(&trace, GFP_KERNEL);

	handle = stack_depot_save(entries, nr_entries, GFP_KERNEL);

	if (!handle)

		return;

	char *buf;

	struct dma_buf_ref *ref;

	int count = 0;

	struct stack_trace trace;

	buf = (void *)__get_free_page(GFP_KERNEL);

	if (!buf)

		return -ENOMEM;

	list_for_each_entry(ref, &msm_dma_buf->refs, list) {

		unsigned long *entries;

		int nr_entries;

		count += ref->count;

		seq_printf(s, "References: %d\n", ref->count);

		depot_fetch_stack(ref->handle, &trace);

		snprint_stack_trace(buf, PAGE_SIZE, &trace, 0);

		nr_entries = stack_depot_fetch(ref->handle, &entries);

		stack_trace_snprint(buf, PAGE_SIZE, entries, nr_entries, 0);

		seq_puts(s, buf);

		seq_putc(s, '\n');

	}