diff options
| author |   Leon Romanovsky <leonro@mellanox.com> | 2019-10-29 08:27:31 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-11-06 15:38:28 -0400 |
| commit | be4a8d46732a45e78aa27c34b58431a917cd644d (patch) | |
| tree | 2f51f0816e9f301563584fb9712f9f7d0109ffe0 /drivers/infiniband/hw | |
| parent | RDMA/qib: Delete empty check_cc_key function (diff) | |
| download | linux-dev-be4a8d46732a45e78aa27c34b58431a917cd644d.tar.xz linux-dev-be4a8d46732a45e78aa27c34b58431a917cd644d.zip | |
RDMA/mad: Allocate zeroed MAD buffer
Ensure that MAD output buffer is zero-based allocated in all the callers
of process_mad and remove the various memset()'s from the drivers.
Link: https://lore.kernel.org/r/20191029062745.7932-3-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/mad.c | 1 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mad.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_stats.c | 1 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_mad.c | 8 |
4 files changed, 0 insertions, 12 deletions
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index 57079110af9b..985cced5d509 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -966,7 +966,6 @@ static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, } mutex_unlock(&dev->counters_table[port_num - 1].mutex); if (stats_avail) { - memset(out_mad->data, 0, sizeof out_mad->data); switch (counter_stats.counter_mode & 0xf) { case 0: edit_counter(&counter_stats, diff --git a/drivers/infiniband/hw/mlx5/mad.c b/drivers/infiniband/hw/mlx5/mad.c index 348c1df69cdc..0a5eb6e1798c 100644 --- a/drivers/infiniband/hw/mlx5/mad.c +++ b/drivers/infiniband/hw/mlx5/mad.c @@ -284,8 +284,6 @@ int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, *out_mad_size != sizeof(*out_mad))) return IB_MAD_RESULT_FAILURE; - memset(out_mad->data, 0, sizeof(out_mad->data)); - if (MLX5_CAP_GEN(dev->mdev, vport_counters) && in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT && in_mad->mad_hdr.method == IB_MGMT_METHOD_GET) { diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c index a902942adb5d..dda9b61f53b6 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c @@ -675,7 +675,6 @@ int ocrdma_pma_counters(struct ocrdma_dev *dev, { struct ib_pma_portcounters *pma_cnt; - memset(out_mad->data, 0, sizeof out_mad->data); pma_cnt = (void *)(out_mad->data + 40); ocrdma_update_stats(dev); diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c index 818ec37a3215..6fbba0d54269 100644 --- a/drivers/infiniband/hw/qib/qib_mad.c +++ b/drivers/infiniband/hw/qib/qib_mad.c @@ -2098,8 +2098,6 @@ static int cc_get_classportinfo(struct ib_cc_mad *ccp, struct ib_cc_classportinfo_attr *p = (struct ib_cc_classportinfo_attr *)ccp->mgmt_data; - memset(ccp->mgmt_data, 0, sizeof(ccp->mgmt_data)); - p->base_version = 1; p->class_version = 1; p->cap_mask = 0; @@ -2120,8 +2118,6 @@ static int cc_get_congestion_info(struct ib_cc_mad *ccp, struct qib_ibport *ibp = to_iport(ibdev, port); struct qib_pportdata *ppd = ppd_from_ibp(ibp); - memset(ccp->mgmt_data, 0, sizeof(ccp->mgmt_data)); - p->congestion_info = 0; p->control_table_cap = ppd->cc_max_table_entries; @@ -2138,8 +2134,6 @@ static int cc_get_congestion_setting(struct ib_cc_mad *ccp, struct qib_pportdata *ppd = ppd_from_ibp(ibp); struct ib_cc_congestion_entry_shadow *entries; - memset(ccp->mgmt_data, 0, sizeof(ccp->mgmt_data)); - spin_lock(&ppd->cc_shadow_lock); entries = ppd->congestion_entries_shadow->entries; @@ -2176,8 +2170,6 @@ static int cc_get_congestion_control_table(struct ib_cc_mad *ccp, if (cct_block_index > IB_CC_TABLE_CAP_DEFAULT - 1) goto bail; - memset(ccp->mgmt_data, 0, sizeof(ccp->mgmt_data)); - spin_lock(&ppd->cc_shadow_lock); max_cct_block = |