diff options
| author |   Avihai Horon <avihaih@nvidia.com> | 2021-12-09 15:16:05 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@nvidia.com> | 2021-12-14 20:09:50 -0400 |
| commit | 109f2d39a621dde1b052e9ab71e2ea2b131832f5 (patch) | |
| tree | 7b33315d9330f822e4a094e1c964122646a27f38 /drivers/infiniband/core | |
| parent | RDMA/hns: Support direct wqe of userspace (diff) | |
| download | linux-dev-109f2d39a621dde1b052e9ab71e2ea2b131832f5.tar.xz linux-dev-109f2d39a621dde1b052e9ab71e2ea2b131832f5.zip | |
RDMA/core: Modify rdma_query_gid() to return accurate error codes
Modify rdma_query_gid() to return -ENOENT for empty entries. This will
make error reporting more accurate and will be used in next patches.
Link: https://lore.kernel.org/r/1f2b65dfb4d995e74b621e3e21e7c7445d187956.1639055490.git.leonro@nvidia.com
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/core')
| -rw-r--r-- | drivers/infiniband/core/cache.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 0c98dd3dee67..9194a23cf859 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -955,7 +955,7 @@ int rdma_query_gid(struct ib_device *device, u32 port_num, { struct ib_gid_table *table; unsigned long flags; - int res = -EINVAL; + int res; if (!rdma_is_port_valid(device, port_num)) return -EINVAL; @@ -963,9 +963,15 @@ int rdma_query_gid(struct ib_device *device, u32 port_num, table = rdma_gid_table(device, port_num); read_lock_irqsave(&table->rwlock, flags); - if (index < 0 || index >= table->sz || - !is_gid_entry_valid(table->data_vec[index])) + if (index < 0 || index >= table->sz) { + res = -EINVAL; goto done; + } + + if (!is_gid_entry_valid(table->data_vec[index])) { + res = -ENOENT; + goto done; + } memcpy(gid, &table->data_vec[index]->attr.gid, sizeof(*gid)); res = 0; |