netdev - [net-next 05/16] net/mlx5: Release clock lock before scheduling a PPS work

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Date:   Tue, 15 Sep 2020 13:25:22 -0700
From:   saeed@...nel.org
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, Eran Ben Elisha <eranbe@...lanox.com>,
        Moshe Shemesh <moshe@...lanox.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 05/16] net/mlx5: Release clock lock before scheduling a PPS work

From: Eran Ben Elisha <eranbe@...lanox.com>

Holding the clock lock is not required when scheduling a PPS work.

Signed-off-by: Eran Ben Elisha <eranbe@...lanox.com>
Reviewed-by: Moshe Shemesh <moshe@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
index b62daf7b9a5c..f8465e42b238 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
@@ -581,8 +581,8 @@ static int mlx5_pps_event(struct notifier_block *nb,
 		cycles_delta = div64_u64(nsec_delta << clock->cycles.shift,
 					 clock->cycles.mult);
 		clock->pps_info.start[pin] = cycles_now + cycles_delta;
-		schedule_work(&clock->pps_info.out_work);
 		write_sequnlock_irqrestore(&clock->lock, flags);
+		schedule_work(&clock->pps_info.out_work);
 		break;
 	default:
 		mlx5_core_err(mdev, " Unhandled clock PPS event, func %d\n",
-- 
2.26.2