Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH] dma-debug: make dma_debug_add_bus take a const pointer | Date | Tue, 19 Dec 2023 14:41:42 +0100 |
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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 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- include/linux/dma-map-ops.h | 4 ++-- 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; -- 2.43.0
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