diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-08 09:30:00 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2020-07-19 09:29:23 +0200 |
| commit | 2f9237d4f6df49b74c51cdac555b0a9979d0c237 (patch) | |
| tree | 6a09811a657e87bc6b716443993bceb2775a1b8f /drivers/infiniband | |
| parent | b4174173005972f8f6497883d08d87e0aba1b604 (diff) | |
| download | linux-2f9237d4f6df49b74c51cdac555b0a9979d0c237.tar.bz2 | |
dma-mapping: make support for dma ops optional
Avoid the overhead of the dma ops support for tiny builds that only
use the direct mapping.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/device.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 905a2beaf885..2927a9d16eaa 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -1183,6 +1183,8 @@ static void setup_dma_device(struct ib_device *device) struct device *parent = device->dev.parent; WARN_ON_ONCE(device->dma_device); + +#ifdef CONFIG_DMA_OPS if (device->dev.dma_ops) { /* * The caller provided custom DMA operations. Copy the @@ -1203,7 +1205,9 @@ static void setup_dma_device(struct ib_device *device) else WARN_ON_ONCE(true); } - } else { + } else +#endif /* CONFIG_DMA_OPS */ + { /* * The caller did not provide custom DMA operations. Use the * DMA mapping operations of the parent device. |