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Subject[PATCH 4.19 20/48] hinic: fix a irq affinity bug
Date
From: Luo bin <luobin9@huawei.com>

[ Upstream commit 0bff777bd0cba73ad4cd0145696ad284d7e6a99f ]

can not use a local variable as an input parameter of
irq_set_affinity_hint

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h | 1 +
drivers/net/ethernet/huawei/hinic/hinic_rx.c | 5 ++---
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h
index 6c84f83ec2831..d46cfd4fbbbc5 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h
@@ -103,6 +103,7 @@ struct hinic_rq {

struct hinic_wq *wq;

+ struct cpumask affinity_mask;
u32 irq;
u16 msix_entry;

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_rx.c b/drivers/net/ethernet/huawei/hinic/hinic_rx.c
index 06b24a92ed7d4..3467d84d96c39 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_rx.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_rx.c
@@ -414,7 +414,6 @@ static int rx_request_irq(struct hinic_rxq *rxq)
struct hinic_hwdev *hwdev = nic_dev->hwdev;
struct hinic_rq *rq = rxq->rq;
struct hinic_qp *qp;
- struct cpumask mask;
int err;

rx_add_napi(rxq);
@@ -431,8 +430,8 @@ static int rx_request_irq(struct hinic_rxq *rxq)
}

qp = container_of(rq, struct hinic_qp, rq);
- cpumask_set_cpu(qp->q_id % num_online_cpus(), &mask);
- return irq_set_affinity_hint(rq->irq, &mask);
+ cpumask_set_cpu(qp->q_id % num_online_cpus(), &rq->affinity_mask);
+ return irq_set_affinity_hint(rq->irq, &rq->affinity_mask);
}

static void rx_free_irq(struct hinic_rxq *rxq)
--
2.20.1


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