diff options
| author | Matan Barak <matanb@mellanox.com> | 2018-03-19 15:02:34 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-03-19 14:45:17 -0600 |
| commit | 0ede73bc012c98fba244b33efbc42e48dd23ee9a (patch) | |
| tree | ee1f9fd1c7033b5690ca7a980b26c65bd502758b /drivers/infiniband/core/uverbs_ioctl.c | |
| parent | 1f7ff9d5d36ae11356012a136f2d495cca910a5f (diff) | |
| download | lwn-0ede73bc012c98fba244b33efbc42e48dd23ee9a.tar.gz lwn-0ede73bc012c98fba244b33efbc42e48dd23ee9a.zip | |
IB/uverbs: Extend uverbs_ioctl header with driver_id
Extending uverbs_ioctl header with driver_id and another reserved
field. driver_id should be used in order to identify the driver.
Since every driver could have its own parsing tree, this is necessary
for strace support.
Downstream patches take off the EXPERIMENTAL flag from the ioctl() IB
support and thus we add some reserved fields for future usage.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
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 'drivers/infiniband/core/uverbs_ioctl.c')
| -rw-r--r-- | drivers/infiniband/core/uverbs_ioctl.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/core/uverbs_ioctl.c b/drivers/infiniband/core/uverbs_ioctl.c index 339b85145044..7016e729f139 100644 --- a/drivers/infiniband/core/uverbs_ioctl.c +++ b/drivers/infiniband/core/uverbs_ioctl.c @@ -246,6 +246,9 @@ static long ib_uverbs_cmd_verbs(struct ib_device *ib_dev, size_t ctx_size; uintptr_t data[UVERBS_OPTIMIZE_USING_STACK_SZ / sizeof(uintptr_t)]; + if (hdr->driver_id != ib_dev->driver_id) + return -EINVAL; + object_spec = uverbs_get_object(ib_dev, hdr->object_id); if (!object_spec) return -EPROTONOSUPPORT; @@ -350,7 +353,7 @@ long ib_uverbs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) goto out; } - if (hdr.reserved) { + if (hdr.reserved1 || hdr.reserved2) { err = -EPROTONOSUPPORT; goto out; } |