RDMA/core: Rate limit GID cache warning messages

[ Upstream commit 333e4d79316c9ed5877d7aac8b8ed22efc74e96d ]

The GID cache warning messages can flood the kernel log when there are
multiple failed attempts to add GIDs. This can happen when creating many
virtual interfaces without having enough space for their GIDs in the GID
table.

Change pr_warn to pr_warn_ratelimited to prevent log flooding while still
maintaining visibility of the issue.

Link: https://patch.msgid.link/r/fd45ed4a1078e743f498b234c3ae816610ba1b18.1750062357.git.leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 873988e5c5280f84d89f125863109dfd4b7771cb..0023aad0e7e436e8ba7abdf90878ef286fe182d6 100644 (file)
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -582,8 +582,8 @@ static int __ib_cache_gid_add(struct ib_device *ib_dev, u32 port,
 out_unlock:
        mutex_unlock(&table->lock);
        if (ret)
-               pr_warn("%s: unable to add gid %pI6 error=%d\n",
-                       __func__, gid->raw, ret);
+               pr_warn_ratelimited("%s: unable to add gid %pI6 error=%d\n",
+                                   __func__, gid->raw, ret);
        return ret;
 }