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-rw-r--r--drivers/infiniband/hw/mthca/mthca_provider.c1
-rw-r--r--drivers/infiniband/hw/mthca/mthca_user.h6
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 141509dced7..939b09dcfe0 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1060,6 +1060,7 @@ int mthca_register_device(struct mthca_dev *dev)
strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX);
dev->ib_dev.owner = THIS_MODULE;
+ dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION;
dev->ib_dev.node_type = IB_NODE_CA;
dev->ib_dev.phys_port_cnt = dev->limits.num_ports;
dev->ib_dev.dma_device = &dev->pdev->dev;
diff --git a/drivers/infiniband/hw/mthca/mthca_user.h b/drivers/infiniband/hw/mthca/mthca_user.h
index 41613ec8a04..bb015c6494c 100644
--- a/drivers/infiniband/hw/mthca/mthca_user.h
+++ b/drivers/infiniband/hw/mthca/mthca_user.h
@@ -38,6 +38,12 @@
#include <linux/types.h>
/*
+ * Increment this value if any changes that break userspace ABI
+ * compatibility are made.
+ */
+#define MTHCA_UVERBS_ABI_VERSION 1
+
+/*
* Make sure that all structs defined in this file remain laid out so
* that they pack the same way on 32-bit and 64-bit architectures (to
* avoid incompatibility between 32-bit userspace and 64-bit kernels).