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| author | David S. Miller <davem@davemloft.net> | 2010-01-23 00:31:06 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-01-23 00:31:06 -0800 |
| commit | 51c24aaacaea90c8e87f1dec75a2ac7622b593f8 (patch) | |
| tree | 9f54936c87764bef75e97395cb56b7d1e0df24c6 /lib/dma-debug.c | |
| parent | 4276e47e2d1c85a2477caf0d22b91c4f2377fba8 (diff) | |
| parent | 6be325719b3e54624397e413efd4b33a997e55a3 (diff) | |
| download | kernel_samsung_aries-51c24aaacaea90c8e87f1dec75a2ac7622b593f8.zip kernel_samsung_aries-51c24aaacaea90c8e87f1dec75a2ac7622b593f8.tar.gz kernel_samsung_aries-51c24aaacaea90c8e87f1dec75a2ac7622b593f8.tar.bz2 | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'lib/dma-debug.c')
| -rw-r--r-- | lib/dma-debug.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/lib/dma-debug.c b/lib/dma-debug.c index d9b08e0..7d2f0b3 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -670,12 +670,13 @@ static int device_dma_allocations(struct device *dev) return count; } -static int dma_debug_device_change(struct notifier_block *nb, - unsigned long action, void *data) +static int dma_debug_device_change(struct notifier_block *nb, unsigned long action, void *data) { struct device *dev = data; int count; + if (global_disable) + return 0; switch (action) { case BUS_NOTIFY_UNBOUND_DRIVER: @@ -697,6 +698,9 @@ void dma_debug_add_bus(struct bus_type *bus) { struct notifier_block *nb; + if (global_disable) + return; + nb = kzalloc(sizeof(struct notifier_block), GFP_KERNEL); if (nb == NULL) { pr_err("dma_debug_add_bus: out of memory\n"); @@ -909,6 +913,9 @@ static void check_sync(struct device *dev, ref->size); } + if (entry->direction == DMA_BIDIRECTIONAL) + goto out; + if (ref->direction != entry->direction) { err_printk(dev, entry, "DMA-API: device driver syncs " "DMA memory with different direction " @@ -919,9 +926,6 @@ static void check_sync(struct device *dev, dir2name[ref->direction]); } - if (entry->direction == DMA_BIDIRECTIONAL) - goto out; - if (to_cpu && !(entry->direction == DMA_FROM_DEVICE) && !(ref->direction == DMA_TO_DEVICE)) err_printk(dev, entry, "DMA-API: device driver syncs " @@ -944,7 +948,6 @@ static void check_sync(struct device *dev, out: put_hash_bucket(bucket, &flags); - } void debug_dma_map_page(struct device *dev, struct page *page, size_t offset, |