From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
Gal Pressman <galpress@amazon.com>,
linux-rdma@vger.kernel.org
Subject: [PATCH rdma-next v1 03/11] RDMA/efa: Use in-kernel offsetofend() to check field availability
Date: Tue, 10 Mar 2020 11:14:30 +0200 [thread overview]
Message-ID: <20200310091438.248429-4-leon@kernel.org> (raw)
In-Reply-To: <20200310091438.248429-1-leon@kernel.org>
From: Leon Romanovsky <leonro@mellanox.com>
Remove custom and duplicated variant of offsetofend().
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
drivers/infiniband/hw/efa/efa_verbs.c | 7 ++-----
1 file 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;
--
2.24.1
next prev parent reply other threads:[~2020-03-10 9:14 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-10 9:14 [PATCH rdma-next v1 00/11] Add Enhanced Connection Established (ECE) Leon Romanovsky
2020-03-10 9:14 ` [PATCH rdma-next v1 01/11] RDMA/cm: Add Enhanced Connection Establishment (ECE) bits Leon Romanovsky
2020-03-10 9:14 ` [PATCH rdma-next v1 02/11] RDMA/mlx4: Delete duplicated offsetofend implementation Leon Romanovsky
2020-03-10 9:14 ` Leon Romanovsky [this message]
2020-03-13 13:44 ` [PATCH rdma-next v1 03/11] RDMA/efa: Use in-kernel offsetofend() to check field availability Jason Gunthorpe
2020-03-13 13:57 ` Leon Romanovsky
2020-03-13 14:26 ` Jason Gunthorpe
2020-03-13 14:38 ` Leon Romanovsky
2020-03-15 7:44 ` Gal Pressman
2020-03-18 9:13 ` Leon Romanovsky
2020-03-19 0:08 ` Jason Gunthorpe
2020-03-10 9:14 ` [PATCH rdma-next v1 04/11] RDMA/mlx5: Use offsetofend() instead of duplicated variant Leon Romanovsky
2020-03-10 9:14 ` [PATCH rdma-next v1 05/11] RDMA/cm: Delete not implemented CM peer to peer communication Leon Romanovsky
2020-03-10 9:14 ` [PATCH rdma-next v1 06/11] RDMA/uapi: Add ECE definitions to UCMA Leon Romanovsky
2020-03-10 9:14 ` [PATCH rdma-next v1 07/11] RDMA/ucma: Extend ucma_connect to receive ECE parameters Leon Romanovsky
2020-03-10 9:14 ` [PATCH rdma-next v1 08/11] RDMA/ucma: Deliver ECE parameters through UCMA events Leon Romanovsky
2020-03-10 9:14 ` [PATCH rdma-next v1 09/11] RDMA/cm: Send and receive ECE parameter over the wire Leon Romanovsky
2020-03-10 9:14 ` [PATCH rdma-next v1 10/11] RDMA/cma: Connect ECE to rdma_accept Leon Romanovsky
2020-03-10 9:14 ` [PATCH rdma-next v1 11/11] RDMA/cma: Provide ECE reject reason Leon Romanovsky
2020-03-13 13:54 ` Jason Gunthorpe
2020-03-13 13:59 ` Leon Romanovsky
2020-03-13 13:53 ` [PATCH rdma-next v1 00/11] Add Enhanced Connection Established (ECE) Jason Gunthorpe
2020-03-13 14:00 ` Leon Romanovsky
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