From: Moshe Shemesh <moshe@nvidia.com>
Date: Thu, 8 Apr 2021 04:30:57 +0000 (+0300)
Subject: net/mlx5: Check firmware sync reset requested is set before trying to abort it
X-Git-Tag: v5.10.79~3894
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=730700337593b41551e17427bc33edcbd95d3f05;p=platform%2Fkernel%2Flinux-rpi.git

net/mlx5: Check firmware sync reset requested is set before trying to abort it

[ Upstream commit 5940e64281c09976ce2b560244217e610bf9d029 ]

In case driver sent NACK to firmware on sync reset request, it will get
sync reset abort event while it didn't set sync reset requested mode.
Thus, on abort sync reset event handler, driver should check reset
requested is set before trying to stop sync reset poll.

Fixes: 7dd6df329d4c ("net/mlx5: Handle sync reset abort event")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
index f9042e1..ee710ce 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
@@ -354,6 +354,9 @@ static void mlx5_sync_reset_abort_event(struct work_struct *work)
 						      reset_abort_work);
 	struct mlx5_core_dev *dev = fw_reset->dev;
 
+	if (!test_bit(MLX5_FW_RESET_FLAGS_RESET_REQUESTED, &fw_reset->reset_flags))
+		return;
+
 	mlx5_sync_reset_clear_reset_requested(dev, true);
 	mlx5_core_warn(dev, "PCI Sync FW Update Reset Aborted.\n");
 }