Commit 2af29468 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jason Gunthorpe
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RDMA/core: Remove ib_dma_{alloc,free}_coherent 

These two functions are entirely unused.

Link: https://lore.kernel.org/r/20201106181941.1878556-7-hch@lst.de


Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent b116c702

include/rdma/ib_verbs.h

+0 −29
Original line number Diff line number Diff line
@@ -4061,35 +4061,6 @@ static inline void ib_dma_sync_single_for_device(struct ib_device *dev, 
	dma_sync_single_for_device(dev->dma_device, addr, size, dir);

}



/**

 * ib_dma_alloc_coherent - Allocate memory and map it for DMA

 * @dev: The device for which the DMA address is requested

 * @size: The size of the region to allocate in bytes

 * @dma_handle: A pointer for returning the DMA address of the region

 * @flag: memory allocator flags

 */

static inline void *ib_dma_alloc_coherent(struct ib_device *dev,

					   size_t size,

					   dma_addr_t *dma_handle,

					   gfp_t flag)

{

	return dma_alloc_coherent(dev->dma_device, size, dma_handle, flag);

}



/**

 * ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent()

 * @dev: The device for which the DMA addresses were allocated

 * @size: The size of the region

 * @cpu_addr: the address returned by ib_dma_alloc_coherent()

 * @dma_handle: the DMA address returned by ib_dma_alloc_coherent()

 */

static inline void ib_dma_free_coherent(struct ib_device *dev,

					size_t size, void *cpu_addr,

					dma_addr_t dma_handle)

{

	dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle);

}



/* ib_reg_user_mr - register a memory region for virtual addresses from kernel

 * space. This function should be called when 'current' is the owning MM.

 */