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yaml
---
r: 144622
b: refs/heads/master
c: 314eeac
h: refs/heads/master
v: v3
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Joerg Roedel authored and Ingo Molnar committed Apr 26, 2009
1 parent 9bccd01 commit c733102
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Showing 2 changed files with 2 additions and 53 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 992d7ced75322307035a0e94074eb7188612a680
refs/heads/master: 314eeac9e35d8b934dd7a09ed3a8e00d41977b84
53 changes: 1 addition & 52 deletions trunk/lib/dma-debug.c
Original file line number Diff line number Diff line change
Expand Up @@ -400,60 +400,9 @@ static int dma_debug_fs_init(void)
return -ENOMEM;
}

static int device_dma_allocations(struct device *dev)
{
struct dma_debug_entry *entry;
unsigned long flags;
int count = 0, i;

for (i = 0; i < HASH_SIZE; ++i) {
spin_lock_irqsave(&dma_entry_hash[i].lock, flags);
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);
}

return count;
}

static int dma_debug_device_change(struct notifier_block *nb,
unsigned long action, void *data)
{
struct device *dev = data;
int count;


switch (action) {
case BUS_NOTIFY_UNBIND_DRIVER:
count = device_dma_allocations(dev);
if (count == 0)
break;
err_printk(dev, NULL, "DMA-API: device driver has pending "
"DMA allocations while released from device "
"[count=%d]\n", count);
break;
default:
break;
}

return 0;
}

void dma_debug_add_bus(struct bus_type *bus)
{
struct notifier_block *nb;

nb = kzalloc(sizeof(struct notifier_block), GFP_KERNEL);
if (nb == NULL) {
printk(KERN_ERR "dma_debug_add_bus: out of memory\n");
return;
}

nb->notifier_call = dma_debug_device_change;

bus_register_notifier(bus, nb);
/* FIXME: register notifier */
}

/*
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