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From: Jakub Kicinski <kuba@kernel.org>
To: Saeed Mahameed <saeed@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>,
	Paolo Abeni <pabeni@redhat.com>,
	Eric Dumazet <edumazet@google.com>,
	Saeed Mahameed <saeedm@nvidia.com>,
	netdev@vger.kernel.org, Tariq Toukan <tariqt@nvidia.com>,
	Moshe Shemesh <moshe@nvidia.com>
Subject: Re: [V2 net 05/11] net/mlx5: Fix possible deadlock on mlx5e_tx_timeout_work
Date: Mon, 7 Nov 2022 20:24:13 -0800	[thread overview]
Message-ID: <20221107202413.7de06ad1@kernel.org> (raw)
In-Reply-To: <20221105071028.578594-6-saeed@kernel.org>

On Sat,  5 Nov 2022 00:10:22 -0700 Saeed Mahameed wrote:
> +	/* Once deactivated, new tx_timeout_work won't be initiated. */
> +	if (current_work() != &priv->tx_timeout_work)
> +		cancel_work_sync(&priv->tx_timeout_work);

The work takes rtnl_lock, are there no callers of
mlx5e_switch_priv_channels() that are under rtnl_lock()?

This patch is definitely going onto my "expecting Fixes"
bingo card :S

  reply	other threads:[~2022-11-08  4:24 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-05  7:10 [pull request][V2 net 00/11] mlx5 fixes 2022-11-02 Saeed Mahameed
2022-11-05  7:10 ` [V2 net 01/11] net/mlx5: Bridge, verify LAG state when adding bond to bridge Saeed Mahameed
2022-11-05  7:10 ` [V2 net 02/11] net/mlx5: Allow async trigger completion execution on single CPU systems Saeed Mahameed
2022-11-05  7:10 ` [V2 net 03/11] net/mlx5: E-switch, Set to legacy mode if failed to change switchdev mode Saeed Mahameed
2022-11-05  7:10 ` [V2 net 04/11] net/mlx5: fw_reset: Don't try to load device in case PCI isn't working Saeed Mahameed
2022-11-05  7:10 ` [V2 net 05/11] net/mlx5: Fix possible deadlock on mlx5e_tx_timeout_work Saeed Mahameed
2022-11-08  4:24   ` Jakub Kicinski [this message]
2022-11-08 10:19     ` Paolo Abeni
2022-11-08 18:02       ` Saeed Mahameed
2022-11-05  7:10 ` [V2 net 06/11] net/mlx5e: Add missing sanity checks for max TX WQE size Saeed Mahameed
2022-11-05  7:10 ` [V2 net 07/11] net/mlx5e: Fix usage of DMA sync API Saeed Mahameed
2022-11-05  7:10 ` [V2 net 08/11] net/mlx5e: Fix tc acts array not to be dependent on enum order Saeed Mahameed
2022-11-05  7:10 ` [V2 net 09/11] net/mlx5e: TC, Fix wrong rejection of packet-per-second policing Saeed Mahameed
2022-11-05  7:10 ` [V2 net 10/11] net/mlx5e: E-Switch, Fix comparing termination table instance Saeed Mahameed
2022-11-05  7:10 ` [V2 net 11/11] net/mlx5e: TC, Fix slab-out-of-bounds in parse_tc_actions Saeed Mahameed

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