diff options
| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-06-23 20:20:51 +0000 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-06-23 20:20:51 +0000 |
| commit | 74d83b7eedab14e4b963a2220ff76f98fa6d4cb8 (patch) | |
| tree | ff4b10ebd9cf1a057c4b1a703732858a539faff7 /lib/dma-debug.c | |
| parent | 61db1802bf33bf027cd97ba3f79566b2b2fce5c6 (diff) | |
| parent | 56299378726d5f2ba8d3c8cbbd13cb280ba45e4f (diff) | |
Merge tag 'v3.0-rc4' of /pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
Diffstat (limited to 'lib/dma-debug.c')
| -rw-r--r-- | lib/dma-debug.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/lib/dma-debug.c b/lib/dma-debug.c index 4bfb0471f10..db07bfd9298 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -649,7 +649,7 @@ out_err: return -ENOMEM; } -static int device_dma_allocations(struct device *dev) +static int device_dma_allocations(struct device *dev, struct dma_debug_entry **out_entry) { struct dma_debug_entry *entry; unsigned long flags; @@ -660,8 +660,10 @@ static int device_dma_allocations(struct device *dev) for (i = 0; i < HASH_SIZE; ++i) { spin_lock(&dma_entry_hash[i].lock); list_for_each_entry(entry, &dma_entry_hash[i].list, list) { - if (entry->dev == dev) + if (entry->dev == dev) { count += 1; + *out_entry = entry; + } } spin_unlock(&dma_entry_hash[i].lock); } @@ -674,6 +676,7 @@ static int device_dma_allocations(struct device *dev) static int dma_debug_device_change(struct notifier_block *nb, unsigned long action, void *data) { struct device *dev = data; + struct dma_debug_entry *uninitialized_var(entry); int count; if (global_disable) @@ -681,12 +684,17 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti switch (action) { case BUS_NOTIFY_UNBOUND_DRIVER: - count = device_dma_allocations(dev); + count = device_dma_allocations(dev, &entry); if (count == 0) break; - err_printk(dev, NULL, "DMA-API: device driver has pending " + err_printk(dev, entry, "DMA-API: device driver has pending " "DMA allocations while released from device " - "[count=%d]\n", count); + "[count=%d]\n" + "One of leaked entries details: " + "[device address=0x%016llx] [size=%llu bytes] " + "[mapped with %s] [mapped as %s]\n", + count, entry->dev_addr, entry->size, + dir2name[entry->direction], type2name[entry->type]); break; default: break; |