dma_get_device_base() was first introduced in the commit c41f9ea998f3 ("drivers: dma-coherent: Account dma_pfn_offset when used with device tree"). Later, it was removed by the commit 43fc509c3efb ("dma-coherent: introduce interface for default DMA pool")
Found by the -Wunused-function compilation warning. Signed-off-by: Qian Cai <c...@lca.pw> --- kernel/dma/coherent.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/kernel/dma/coherent.c b/kernel/dma/coherent.c index 29fd6590dc1e..909b38e1c29b 100644 --- a/kernel/dma/coherent.c +++ b/kernel/dma/coherent.c @@ -28,15 +28,6 @@ static inline struct dma_coherent_mem *dev_get_coherent_memory(struct device *de return NULL; } -static inline dma_addr_t dma_get_device_base(struct device *dev, - struct dma_coherent_mem * mem) -{ - if (mem->use_dev_dma_pfn_offset) - return (mem->pfn_base - dev->dma_pfn_offset) << PAGE_SHIFT; - else - return mem->device_base; -} - static int dma_init_coherent_memory(phys_addr_t phys_addr, dma_addr_t device_addr, size_t size, struct dma_coherent_mem **mem) -- 1.8.3.1