diff options
Diffstat (limited to 'kernel/dma')
| -rw-r--r-- | kernel/dma/swiotlb.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 0ffbaae9fba2..b7f76bca89bf 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -712,6 +712,21 @@ late_initcall(swiotlb_create_default_debugfs); #endif #ifdef CONFIG_DMA_RESTRICTED_POOL + +#ifdef CONFIG_DEBUG_FS +static void rmem_swiotlb_debugfs_init(struct reserved_mem *rmem) +{ + struct io_tlb_mem *mem = rmem->priv; + + mem->debugfs = debugfs_create_dir(rmem->name, debugfs_dir); + swiotlb_create_debugfs_files(mem); +} +#else +static void rmem_swiotlb_debugfs_init(struct reserved_mem *rmem) +{ +} +#endif + struct page *swiotlb_alloc(struct device *dev, size_t size) { struct io_tlb_mem *mem = dev->dma_io_tlb_mem; @@ -766,11 +781,7 @@ static int rmem_swiotlb_device_init(struct reserved_mem *rmem, rmem->priv = mem; - if (IS_ENABLED(CONFIG_DEBUG_FS)) { - mem->debugfs = - debugfs_create_dir(rmem->name, debugfs_dir); - swiotlb_create_debugfs_files(mem); - } + rmem_swiotlb_debugfs_init(rmem); } dev->dma_io_tlb_mem = mem; |