diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/dma-debug.c | 37 |
1 files changed, 21 insertions, 16 deletions
diff --git a/lib/dma-debug.c b/lib/dma-debug.c index add80cc02dbe..1ac35dbaf8e0 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -102,6 +102,11 @@ static DEFINE_SPINLOCK(free_entries_lock); /* Global disable flag - will be set in case of an error */ static u32 global_disable __read_mostly; +static inline bool dma_debug_disabled(void) +{ + return global_disable; +} + /* Global error count */ static u32 error_count; @@ -945,7 +950,7 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti struct dma_debug_entry *uninitialized_var(entry); int count; - if (global_disable) + if (dma_debug_disabled()) return 0; switch (action) { @@ -973,7 +978,7 @@ void dma_debug_add_bus(struct bus_type *bus) { struct notifier_block *nb; - if (global_disable) + if (dma_debug_disabled()) return; nb = kzalloc(sizeof(struct notifier_block), GFP_KERNEL); @@ -994,7 +999,7 @@ void dma_debug_init(u32 num_entries) { int i; - if (global_disable) + if (dma_debug_disabled()) return; for (i = 0; i < HASH_SIZE; ++i) { @@ -1243,7 +1248,7 @@ void debug_dma_map_page(struct device *dev, struct page *page, size_t offset, { struct dma_debug_entry *entry; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; if (dma_mapping_error(dev, dma_addr)) @@ -1283,7 +1288,7 @@ void debug_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) struct hash_bucket *bucket; unsigned long flags; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; ref.dev = dev; @@ -1325,7 +1330,7 @@ void debug_dma_unmap_page(struct device *dev, dma_addr_t addr, .direction = direction, }; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; if (map_single) @@ -1342,7 +1347,7 @@ void debug_dma_map_sg(struct device *dev, struct scatterlist *sg, struct scatterlist *s; int i; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; for_each_sg(sg, s, mapped_ents, i) { @@ -1395,7 +1400,7 @@ void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, struct scatterlist *s; int mapped_ents = 0, i; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; for_each_sg(sglist, s, nelems, i) { @@ -1427,7 +1432,7 @@ void debug_dma_alloc_coherent(struct device *dev, size_t size, { struct dma_debug_entry *entry; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; if (unlikely(virt == NULL)) @@ -1462,7 +1467,7 @@ void debug_dma_free_coherent(struct device *dev, size_t size, .direction = DMA_BIDIRECTIONAL, }; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; check_unmap(&ref); @@ -1474,7 +1479,7 @@ void debug_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, { struct dma_debug_entry ref; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; ref.type = dma_debug_single; @@ -1494,7 +1499,7 @@ void debug_dma_sync_single_for_device(struct device *dev, { struct dma_debug_entry ref; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; ref.type = dma_debug_single; @@ -1515,7 +1520,7 @@ void debug_dma_sync_single_range_for_cpu(struct device *dev, { struct dma_debug_entry ref; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; ref.type = dma_debug_single; @@ -1536,7 +1541,7 @@ void debug_dma_sync_single_range_for_device(struct device *dev, { struct dma_debug_entry ref; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; ref.type = dma_debug_single; @@ -1556,7 +1561,7 @@ void debug_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, struct scatterlist *s; int mapped_ents = 0, i; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; for_each_sg(sg, s, nelems, i) { @@ -1589,7 +1594,7 @@ void debug_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, struct scatterlist *s; int mapped_ents = 0, i; - if (unlikely(global_disable)) + if (unlikely(dma_debug_disabled())) return; for_each_sg(sg, s, nelems, i) { |