From: Avihai Horon <avihaih@xxxxxxxxxx>
Currently, ib_find_gid() will stop searching after encountering the
first empty GID table entry. This behavior is wrong since neither IB
nor RoCE spec enforce tightly packed GID tables.
For example, when a valid GID entry exists at index N, and if a GID
entry is empty at index N-1, ib_find_gid() will fail to find the valid
entry.
Fix it by making ib_find_gid() continue searching even after
encountering missing entries.
Fixes: 5eb620c81ce3 ("IB/core: Add helpers for uncached GID and P_Key searches")
Signed-off-by: Avihai Horon <avihaih@xxxxxxxxxx>
Reviewed-by: Mark Zhang <markzhang@xxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
---
drivers/infiniband/core/device.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 22a4adda7981..a311df07b1bd 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -2461,7 +2461,8 @@ int ib_find_gid(struct ib_device *device, union ib_gid *gid,
++i) {
ret = rdma_query_gid(device, port, i, &tmp_gid);
if (ret)
- return ret;
+ continue;
+
if (!memcmp(&tmp_gid, gid, sizeof *gid)) {
*port_num = port;
if (index)
--
2.33.1
