[PATCH 4.14 139/189] qede: Fix gfp flags sent to rdma event node allocation

Greg Kroah-Hartman
2018-06-18T08:35:54Z

From: Michal Kalderon <Michal.Kalderon@cavium.com>

[ Upstream commit 090477e4acb31c5dd674940c7c01d4f16bd1ac41 ]

A previous commit 4609adc27175 ("qede: Fix qedr link update")
added a flow that could allocate rdma event objects from an
interrupt path (link notification). Therefore the kzalloc call
should be done with GFP_ATOMIC.

fixes: 4609adc27175 ("qede: Fix qedr link update")
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Sudarsana Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/qlogic/qede/qede_rdma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/qlogic/qede/qede_rdma.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_rdma.c
@@ -238,7 +238,7 @@ qede_rdma_get_free_event_node(struct qed
}

if (!found) {
- event_node = kzalloc(sizeof(*event_node), GFP_KERNEL);
+ event_node = kzalloc(sizeof(*event_node), GFP_ATOMIC);
if (!event_node) {
DP_NOTICE(edev,
"qedr: Could not allocate memory for rdma work\n");