lkml.org 
[lkml]   [2021]   [Dec]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH rdma-next v1 1/3] RDMA/core: Modify rdma_query_gid() to return accurate error codes
Date
From: Avihai Horon <avihaih@nvidia.com>

Modify rdma_query_gid() to return -ENOENT for empty entries. This will
make error reporting more accurate and will be used in next patches.

Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/core/cache.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 0c98dd3dee67..edddcca62ece 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;
--
2.33.1
\
 
 \ /
  Last update: 2021-12-09 14:16    [W:0.042 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site