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Commit be81c6ea authored by Joerg Roedel's avatar Joerg Roedel
Browse files

dma-debug: disable/enable irqs only once in device_dma_allocations 



There is no need to disable/enable irqs on each loop iteration. Just
disable irqs for the whole time the loop runs.

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent e7ed70ee

lib/dma-debug.c

+6 −2
Original line number Diff line number Diff line
@@ -649,15 +649,19 @@ static int device_dma_allocations(struct device *dev) 
	unsigned long flags;

	int count = 0, i;



	local_irq_save(flags);



	for (i = 0; i < HASH_SIZE; ++i) {

		spin_lock_irqsave(&dma_entry_hash[i].lock, flags);

		spin_lock(&dma_entry_hash[i].lock);

		list_for_each_entry(entry, &dma_entry_hash[i].list, list) {

			if (entry->dev == dev)

				count += 1;

		}

		spin_unlock_irqrestore(&dma_entry_hash[i].lock, flags);

		spin_unlock(&dma_entry_hash[i].lock);

	}



	local_irq_restore(flags);



	return count;

}