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authorChristoph Hellwig <hch@lst.de>2020-11-06 21:19:32 +0300
committerJason Gunthorpe <jgg@nvidia.com>2020-11-12 20:27:41 +0300
commitb1e678bf290db5a76f1b6a9f7c381310e03440d6 (patch)
treee9d64d9e76f43ff3a085a7bc6a4051a174a4d06c /drivers/infiniband/Kconfig
parentd035c3f6cdb8e5d5a17adcbb79d7453417a6077d (diff)
downloadlinux-b1e678bf290db5a76f1b6a9f7c381310e03440d6.tar.xz
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/Kconfig3
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"