From: Mark Zhang <markzhang@nvidia.com>
Date: Mon, 28 Nov 2022 11:52:46 +0000 (+0200)
Subject: RDMA/nldev: Fix failure to send large messages
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=fc8f93ad3e5485d45c992233c96acd902992dfc4;p=linux.git

RDMA/nldev: Fix failure to send large messages

Return "-EMSGSIZE" instead of "-EINVAL" when filling a QP entry, so that
new SKBs will be allocated if there's not enough room in current SKB.

Fixes: 65959522f806 ("RDMA: Add support to dump resource tracker in RAW format")
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Reviewed-by: Patrisious Haddad <phaddad@nvidia.com>
Link: https://lore.kernel.org/r/b5e9c62f6b8369acab5648b661bf539cbceeffdc.1669636336.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
---

diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index b4716cda65d89..a981ac2f09758 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -513,7 +513,7 @@ static int fill_res_qp_entry(struct sk_buff *msg, bool has_cap_net_admin,
 
 	/* In create_qp() port is not set yet */
 	if (qp->port && nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, qp->port))
-		return -EINVAL;
+		return -EMSGSIZE;
 
 	ret = nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_LQPN, qp->qp_num);
 	if (ret)