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| author | Christoph Hellwig <hch@lst.de> | 2020-11-06 19:19:32 +0100 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-11-12 13:27:41 -0400 |
| commit | b1e678bf290db5a76f1b6a9f7c381310e03440d6 (patch) | |
| tree | e9d64d9e76f43ff3a085a7bc6a4051a174a4d06c /drivers/infiniband/Kconfig | |
| parent | d035c3f6cdb8e5d5a17adcbb79d7453417a6077d (diff) | |
| download | lwn-b1e678bf290db5a76f1b6a9f7c381310e03440d6.tar.gz lwn-b1e678bf290db5a76f1b6a9f7c381310e03440d6.zip | |
RMDA/sw: Don't allow drivers using dma_virt_ops on highmem configs
dma_virt_ops requires that all pages have a kernel virtual address.
Introduce a INFINIBAND_VIRT_DMA Kconfig symbol that depends on !HIGHMEM
and make all three drivers depend on the new symbol.
Also remove the ARCH_DMA_ADDR_T_64BIT dependency, which has been obsolete
since commit 4965a68780c5 ("arch: define the ARCH_DMA_ADDR_T_64BIT config
symbol in lib/Kconfig")
Fixes: 551199aca1c3 ("lib/dma-virt: Add dma_virt_ops")
Link: https://lore.kernel.org/r/20201106181941.1878556-2-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/Kconfig')
| -rw-r--r-- | drivers/infiniband/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index 32a51432ec4f..9325e189a215 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -73,6 +73,9 @@ config INFINIBAND_ADDR_TRANS_CONFIGFS This allows the user to config the default GID type that the CM uses for each device, when initiaing new connections. +config INFINIBAND_VIRT_DMA + def_bool !HIGHMEM + if INFINIBAND_USER_ACCESS || !INFINIBAND_USER_ACCESS source "drivers/infiniband/hw/mthca/Kconfig" source "drivers/infiniband/hw/qib/Kconfig" |