diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/core/cache.c | 19 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx4/main.c | 5 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx4/qp.c | 2 | ||||
| -rw-r--r-- | include/rdma/ib_cache.h | 1 |
4 files changed, 19 insertions, 8 deletions
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 5f1a8333a45a..82699f70e9b6 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -125,6 +125,16 @@ const char *ib_cache_gid_type_str(enum ib_gid_type gid_type) } EXPORT_SYMBOL(ib_cache_gid_type_str); +/** rdma_is_zero_gid - Check if given GID is zero or not. + * @gid: GID to check + * Returns true if given GID is zero, returns false otherwise. + */ +bool rdma_is_zero_gid(const union ib_gid *gid) +{ + return !memcmp(gid, &zgid, sizeof(*gid)); +} +EXPORT_SYMBOL(rdma_is_zero_gid); + int ib_cache_gid_parse_type_str(const char *buf) { unsigned int i; @@ -231,7 +241,7 @@ static int add_modify_gid(struct ib_gid_table *table, * So ignore such behavior for IB link layer and don't * fail the call, but don't add such entry to GID cache. */ - if (!memcmp(gid, &zgid, sizeof(*gid))) + if (rdma_is_zero_gid(gid)) return 0; } @@ -264,7 +274,7 @@ static void del_gid(struct ib_device *ib_dev, u8 port, if (rdma_protocol_roce(ib_dev, port)) del_roce_gid(ib_dev, port, table, ix); - memcpy(&table->data_vec[ix].gid, &zgid, sizeof(zgid)); + memset(&table->data_vec[ix].gid, 0, sizeof(table->data_vec[ix].gid)); memset(&table->data_vec[ix].attr, 0, sizeof(table->data_vec[ix].attr)); table->data_vec[ix].context = NULL; } @@ -363,7 +373,7 @@ static int __ib_cache_gid_add(struct ib_device *ib_dev, u8 port, * IB spec version 1.3 section 4.1.1 point (6) and * section 12.7.10 and section 12.7.20 */ - if (!memcmp(gid, &zgid, sizeof(*gid))) + if (rdma_is_zero_gid(gid)) return -EINVAL; table = ib_dev->cache.ports[port - rdma_start_port(ib_dev)].gid; @@ -724,8 +734,7 @@ static void cleanup_gid_table_port(struct ib_device *ib_dev, u8 port, mutex_lock(&table->lock); for (i = 0; i < table->sz; ++i) { - if (memcmp(&table->data_vec[i].gid, &zgid, - sizeof(table->data_vec[i].gid))) { + if (!rdma_is_zero_gid(&table->data_vec[i].gid)) { del_gid(ib_dev, port, table, i); deleted = true; } diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 5b70744f414a..bf12394c13c1 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -276,7 +276,7 @@ static int mlx4_ib_add_gid(const union ib_gid *gid, found = i; break; } - if (free < 0 && !memcmp(&port_gid_table->gids[i].gid, &zgid, sizeof(*gid))) + if (free < 0 && rdma_is_zero_gid(&port_gid_table->gids[i].gid)) free = i; /* HW has space */ } @@ -345,7 +345,8 @@ static int mlx4_ib_del_gid(const struct ib_gid_attr *attr, void **context) if (!ctx->refcount) { unsigned int real_index = ctx->real_index; - memcpy(&port_gid_table->gids[real_index].gid, &zgid, sizeof(zgid)); + memset(&port_gid_table->gids[real_index].gid, 0, + sizeof(port_gid_table->gids[real_index].gid)); kfree(port_gid_table->gids[real_index].ctx); port_gid_table->gids[real_index].ctx = NULL; hw_update = 1; diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 199648adac74..cd2c08c45334 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -3078,7 +3078,7 @@ static int fill_gid_by_hw_index(struct mlx4_ib_dev *ibdev, u8 port_num, memcpy(gid, &port_gid_table->gids[index].gid, sizeof(*gid)); *gid_type = port_gid_table->gids[index].gid_type; spin_unlock_irqrestore(&iboe->lock, flags); - if (!memcmp(gid, &zgid, sizeof(*gid))) + if (rdma_is_zero_gid(gid)) return -ENOENT; return 0; diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h index eb49cc8d1f95..a5f249828115 100644 --- a/include/rdma/ib_cache.h +++ b/include/rdma/ib_cache.h @@ -149,4 +149,5 @@ int ib_get_cached_port_state(struct ib_device *device, u8 port_num, enum ib_port_state *port_active); +bool rdma_is_zero_gid(const union ib_gid *gid); #endif /* _IB_CACHE_H */ |