diff options
| author | Tejun Heo <tj@kernel.org> | 2010-01-04 19:17:33 -0500 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2010-01-04 19:17:33 -0500 |
| commit | 32032df6c2f6c9c6b2ada2ce42322231824f70c2 (patch) | |
| tree | b1ce838a37044bb38dfc128e2116ca35630e629a /lib/dma-debug.c | |
| parent | 22b737f4c75197372d64afc6ed1bccd58c00e549 (diff) | |
| parent | c5974b835a909ff15c3b7e6cf6789b5eb919f419 (diff) | |
Merge branch 'master' into percpu
Conflicts:
arch/powerpc/platforms/pseries/hvCall.S
include/linux/percpu.h
Diffstat (limited to 'lib/dma-debug.c')
| -rw-r--r-- | lib/dma-debug.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/lib/dma-debug.c b/lib/dma-debug.c index 58a9f9fc609a..cf906201aecf 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c | |||
| @@ -259,7 +259,7 @@ static struct dma_debug_entry *hash_bucket_find(struct hash_bucket *bucket, | |||
| 259 | * times. Without a hardware IOMMU this results in the | 259 | * times. Without a hardware IOMMU this results in the |
| 260 | * same device addresses being put into the dma-debug | 260 | * same device addresses being put into the dma-debug |
| 261 | * hash multiple times too. This can result in false | 261 | * hash multiple times too. This can result in false |
| 262 | * positives being reported. Therfore we implement a | 262 | * positives being reported. Therefore we implement a |
| 263 | * best-fit algorithm here which returns the entry from | 263 | * best-fit algorithm here which returns the entry from |
| 264 | * the hash which fits best to the reference value | 264 | * the hash which fits best to the reference value |
| 265 | * instead of the first-fit. | 265 | * instead of the first-fit. |
| @@ -670,12 +670,13 @@ static int device_dma_allocations(struct device *dev) | |||
| 670 | return count; | 670 | return count; |
| 671 | } | 671 | } |
| 672 | 672 | ||
| 673 | static int dma_debug_device_change(struct notifier_block *nb, | 673 | static int dma_debug_device_change(struct notifier_block *nb, unsigned long action, void *data) |
| 674 | unsigned long action, void *data) | ||
| 675 | { | 674 | { |
| 676 | struct device *dev = data; | 675 | struct device *dev = data; |
| 677 | int count; | 676 | int count; |
| 678 | 677 | ||
| 678 | if (global_disable) | ||
| 679 | return 0; | ||
| 679 | 680 | ||
| 680 | switch (action) { | 681 | switch (action) { |
| 681 | case BUS_NOTIFY_UNBOUND_DRIVER: | 682 | case BUS_NOTIFY_UNBOUND_DRIVER: |
| @@ -697,6 +698,9 @@ void dma_debug_add_bus(struct bus_type *bus) | |||
| 697 | { | 698 | { |
| 698 | struct notifier_block *nb; | 699 | struct notifier_block *nb; |
| 699 | 700 | ||
| 701 | if (global_disable) | ||
| 702 | return; | ||
| 703 | |||
| 700 | nb = kzalloc(sizeof(struct notifier_block), GFP_KERNEL); | 704 | nb = kzalloc(sizeof(struct notifier_block), GFP_KERNEL); |
| 701 | if (nb == NULL) { | 705 | if (nb == NULL) { |
| 702 | pr_err("dma_debug_add_bus: out of memory\n"); | 706 | pr_err("dma_debug_add_bus: out of memory\n"); |
| @@ -819,9 +823,11 @@ static void check_unmap(struct dma_debug_entry *ref) | |||
| 819 | err_printk(ref->dev, entry, "DMA-API: device driver frees " | 823 | err_printk(ref->dev, entry, "DMA-API: device driver frees " |
| 820 | "DMA memory with different CPU address " | 824 | "DMA memory with different CPU address " |
| 821 | "[device address=0x%016llx] [size=%llu bytes] " | 825 | "[device address=0x%016llx] [size=%llu bytes] " |
| 822 | "[cpu alloc address=%p] [cpu free address=%p]", | 826 | "[cpu alloc address=0x%016llx] " |
| 827 | "[cpu free address=0x%016llx]", | ||
| 823 | ref->dev_addr, ref->size, | 828 | ref->dev_addr, ref->size, |
| 824 | (void *)entry->paddr, (void *)ref->paddr); | 829 | (unsigned long long)entry->paddr, |
| 830 | (unsigned long long)ref->paddr); | ||
| 825 | } | 831 | } |
| 826 | 832 | ||
| 827 | if (ref->sg_call_ents && ref->type == dma_debug_sg && | 833 | if (ref->sg_call_ents && ref->type == dma_debug_sg && |
