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swiotlb: fix implicit debugfs declarations

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Factor out the debugfs bits from rmem_swiotlb_device_init() into a separate
rmem_swiotlb_debugfs_init() to fix the implicit debugfs declarations.

Fixes: 461021875c50 ("swiotlb: Add restricted DMA pool initialization")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Claire Chang <tientzu@chromium.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Claire Chang 2021-07-01 11:31:30 +08:00 committed by Konrad Rzeszutek Wilk
parent fec9b62509
commit 09a4a79d42
1 changed files with 16 additions and 5 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

21
kernel/dma/swiotlb.c
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@ -712,6 +712,21 @@ late_initcall(swiotlb_create_default_debugfs);
#endif #endif
#ifdef CONFIG_DMA_RESTRICTED_POOL #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 page *swiotlb_alloc(struct device *dev, size_t size)
{ {
struct io_tlb_mem *mem = dev->dma_io_tlb_mem; 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; rmem->priv = mem;
if (IS_ENABLED(CONFIG_DEBUG_FS)) { rmem_swiotlb_debugfs_init(rmem);
mem->debugfs =
debugfs_create_dir(rmem->name, debugfs_dir);
swiotlb_create_debugfs_files(mem);
}
} }
dev->dma_io_tlb_mem = mem; dev->dma_io_tlb_mem = mem;