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| author | Matan Barak <matanb@mellanox.com> | 2018-03-22 10:52:02 +0100 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-03-27 22:43:10 +0200 |
| commit | be23fb9a2c1d33037c1499a04e93bb0c03cf73d6 (patch) | |
| tree | 4de6c284d051146f346d9bc77b45657333cd3b18 /include/uapi | |
| parent | Merge branch '32compat' (diff) | |
| download | linux-be23fb9a2c1d33037c1499a04e93bb0c03cf73d6.tar.xz linux-be23fb9a2c1d33037c1499a04e93bb0c03cf73d6.zip | |
IB/uverbs: UAPI pointers should use __aligned_u64 type
The ioctl() UAPIs are meant to be used by both user-space
and kernel ioctl() handlers.
Mostly, these UAPI structs tend to consist of simple types, but
sometimes user-space pointers may be passed between user-space and
kernel. We would like to avoid dereferencing a user-space pointer in
the kernel, thus - we always define RDMA_UAPI_PTR as a __aligned_u64
type.
Fixes: 1f7ff9d5d36a ('IB/uverbs: Move to new headers and make naming consistent')
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/rdma/ib_user_ioctl_verbs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/uapi/rdma/ib_user_ioctl_verbs.h b/include/uapi/rdma/ib_user_ioctl_verbs.h index 3d3a2f017abc..173629ecc09b 100644 --- a/include/uapi/rdma/ib_user_ioctl_verbs.h +++ b/include/uapi/rdma/ib_user_ioctl_verbs.h @@ -37,7 +37,7 @@ #include <linux/types.h> #ifndef RDMA_UAPI_PTR -#define RDMA_UAPI_PTR(_type, _name) _type __attribute__((aligned(8))) _name +#define RDMA_UAPI_PTR(_type, _name) __aligned_u64 _name #endif #endif |