diff options
| author | Leon Romanovsky <leonro@mellanox.com> | 2020-03-10 11:14:30 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-03-18 21:06:37 -0300 |
| commit | fa8a44f6b245ffa9d39d667ebbf81bebc61ca657 (patch) | |
| tree | fa7b567a788e0a9045f607d7cd6320392247d9cb /drivers/infiniband | |
| parent | 5ab17a24cb82a636e80c62386dcf1676cbcabaf1 (diff) | |
| download | linux-fa8a44f6b245ffa9d39d667ebbf81bebc61ca657.tar.bz2 | |
RDMA/efa: Use in-kernel offsetofend() to check field availability
Remove custom and duplicated variant of offsetofend().
Link: https://lore.kernel.org/r/20200310091438.248429-4-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/efa/efa_verbs.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c index bf3120f140f7..5c57098a4aee 100644 --- a/drivers/infiniband/hw/efa/efa_verbs.c +++ b/drivers/infiniband/hw/efa/efa_verbs.c @@ -144,9 +144,6 @@ static inline bool is_rdma_read_cap(struct efa_dev *dev) return dev->dev_attr.device_caps & EFA_ADMIN_FEATURE_DEVICE_ATTR_DESC_RDMA_READ_MASK; } -#define field_avail(x, fld, sz) (offsetof(typeof(x), fld) + \ - sizeof_field(typeof(x), fld) <= (sz)) - #define is_reserved_cleared(reserved) \ !memchr_inv(reserved, 0, sizeof(reserved)) @@ -609,7 +606,7 @@ struct ib_qp *efa_create_qp(struct ib_pd *ibpd, if (err) goto err_out; - if (!field_avail(cmd, driver_qp_type, udata->inlen)) { + if (offsetofend(typeof(cmd), driver_qp_type) > udata->inlen) { ibdev_dbg(&dev->ibdev, "Incompatible ABI params, no input udata\n"); err = -EINVAL; @@ -896,7 +893,7 @@ int efa_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, goto err_out; } - if (!field_avail(cmd, num_sub_cqs, udata->inlen)) { + if (offsetofend(typeof(cmd), num_sub_cqs) > udata->inlen) { ibdev_dbg(ibdev, "Incompatible ABI params, no input udata\n"); err = -EINVAL; |