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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-19 14:41:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-04 14:38:29 +0100 |
| commit | 86438841e48f6361f0a6a04805b7d7813738761f (patch) | |
| tree | d018cc1af6bdb4247e954b5f0a2c04223ba47745 | |
| parent | e76933a9bfa9b7f28a387f2e13cb3e689adc200d (diff) | |
| download | linux-stable-86438841e48f6361f0a6a04805b7d7813738761f.tar.gz linux-stable-86438841e48f6361f0a6a04805b7d7813738761f.tar.bz2 linux-stable-86438841e48f6361f0a6a04805b7d7813738761f.zip | |
dma-debug: make dma_debug_add_bus take a const pointer
The driver core now can handle a const struct bus_type pointer, and the
dma_debug_add_bus() call just passes on the pointer give to it to the
driver core, so make this pointer const as well to allow everyone to use
read-only struct bus_type pointers going forward.
Cc: Christoph Hellwig <hch@lst.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: <iommu@lists.linux.dev>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/2023121941-dejected-nugget-681e@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | include/linux/dma-map-ops.h | 4 | ||||
| -rw-r--r-- | kernel/dma/debug.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/dma-map-ops.h b/include/linux/dma-map-ops.h index f2fc203fb8a1..e401f824a007 100644 --- a/include/linux/dma-map-ops.h +++ b/include/linux/dma-map-ops.h @@ -443,10 +443,10 @@ static inline void arch_teardown_dma_ops(struct device *dev) #endif /* CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS */ #ifdef CONFIG_DMA_API_DEBUG -void dma_debug_add_bus(struct bus_type *bus); +void dma_debug_add_bus(const struct bus_type *bus); void debug_dma_dump_mappings(struct device *dev); #else -static inline void dma_debug_add_bus(struct bus_type *bus) +static inline void dma_debug_add_bus(const struct bus_type *bus) { } static inline void debug_dma_dump_mappings(struct device *dev) diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c index 3de494375b7b..1a5c86dd87d5 100644 --- a/kernel/dma/debug.c +++ b/kernel/dma/debug.c @@ -876,7 +876,7 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti return 0; } -void dma_debug_add_bus(struct bus_type *bus) +void dma_debug_add_bus(const struct bus_type *bus) { struct notifier_block *nb; |