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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Parav Pandit <parav@mellanox.com>,
	Leon Romanovsky <leonro@mellanox.com>,
	Mark Zhang <markz@mellanox.com>,
	Saeed Mahameed <saeedm@mellanox.com>
Subject: [PATCH 4.9 19/32] net/mlx5: Use reversed order when unregister devices
Date: Fri,  9 Aug 2019 15:45:22 +0200	[thread overview]
Message-ID: <20190809133923.571819099@linuxfoundation.org> (raw)
In-Reply-To: <20190809133922.945349906@linuxfoundation.org>

From: Mark Zhang <markz@mellanox.com>

[ Upstream commit 08aa5e7da6bce1a1963f63cf32c2e7ad434ad578 ]

When lag is active, which is controlled by the bonded mlx5e netdev, mlx5
interface unregestering must happen in the reverse order where rdma is
unregistered (unloaded) first, to guarantee all references to the lag
context in hardware is removed, then remove mlx5e netdev interface which
will cleanup the lag context from hardware.

Without this fix during destroy of LAG interface, we observed following
errors:
 * mlx5_cmd_check:752:(pid 12556): DESTROY_LAG(0x843) op_mod(0x0) failed,
   status bad parameter(0x3), syndrome (0xe4ac33)
 * mlx5_cmd_check:752:(pid 12556): DESTROY_LAG(0x843) op_mod(0x0) failed,
   status bad parameter(0x3), syndrome (0xa5aee8).

Fixes: a31208b1e11d ("net/mlx5_core: New init and exit flow for mlx5_core")
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Mark Zhang <markz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/dev.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
@@ -207,7 +207,7 @@ void mlx5_unregister_device(struct mlx5_
 	struct mlx5_interface *intf;
 
 	mutex_lock(&mlx5_intf_mutex);
-	list_for_each_entry(intf, &intf_list, list)
+	list_for_each_entry_reverse(intf, &intf_list, list)
 		mlx5_remove_device(intf, priv);
 	list_del(&priv->dev_list);
 	mutex_unlock(&mlx5_intf_mutex);



  parent reply	other threads:[~2019-08-09 13:47 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-09 13:45 [PATCH 4.9 00/32] 4.9.189-stable review Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 01/32] scsi: fcoe: Embed fc_rport_priv in fcoe_rport structure Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 02/32] ARM: dts: Add pinmuxing for i2c2 and i2c3 for LogicPD SOM-LV Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 03/32] ARM: dts: Add pinmuxing for i2c2 and i2c3 for LogicPD torpedo Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 04/32] ARM: dts: logicpd-som-lv: Fix Audio Mute Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 05/32] arm64: cpufeature: Fix CTR_EL0 field definitions Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 06/32] arm64: cpufeature: Fix feature comparison for CTR_EL0.{CWG,ERG} Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 07/32] tcp: be more careful in tcp_fragment() Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 08/32] HID: wacom: fix bit shift for Cintiq Companion 2 Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 09/32] HID: Add quirk for HP X1200 PIXART OEM mouse Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 10/32] RDMA: Directly cast the sockaddr union to sockaddr Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 11/32] [PATCH] IB: directly cast the sockaddr union to aockaddr Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 12/32] objtool: Add machine_real_restart() to the noreturn list Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 13/32] objtool: Add rewind_stack_do_exit() " Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 14/32] libceph: use kbasename() and kill ceph_file_part() Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 15/32] atm: iphase: Fix Spectre v1 vulnerability Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 16/32] net: bridge: delete local fdb on device init failure Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 17/32] net: bridge: mcast: dont delete permanent entries when fast leave is enabled Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 18/32] net: fix ifindex collision during namespace removal Greg Kroah-Hartman
2019-08-09 13:45 ` Greg Kroah-Hartman [this message]
2019-08-09 13:45 ` [PATCH 4.9 20/32] net: sched: Fix a possible null-pointer dereference in dequeue_func() Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 21/32] tipc: compat: allow tipc commands without arguments Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 22/32] compat_ioctl: pppoe: fix PPPOEIOCSFWD handling Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 23/32] ip6_tunnel: fix possible use-after-free on xmit Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 24/32] ife: error out when nla attributes are empty Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 25/32] bnx2x: Disable multi-cos feature Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 26/32] block: blk_init_allocated_queue() set q->fq as NULL in the fail case Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 27/32] spi: bcm2835: Fix 3-wire mode if DMA is enabled Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 28/32] x86: cpufeatures: Sort feature word 7 Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 29/32] x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 30/32] x86/speculation: Enable " Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 31/32] x86/entry/64: Use JMP instead of JMPQ Greg Kroah-Hartman
2019-08-09 13:45 ` [PATCH 4.9 32/32] x86/speculation/swapgs: Exclude ATOMs from speculation through SWAPGS Greg Kroah-Hartman
2019-08-09 19:59 ` [PATCH 4.9 00/32] 4.9.189-stable review Daniel Díaz
2019-08-10 10:14   ` Greg Kroah-Hartman
2019-08-09 22:07 ` shuah
2019-08-10  7:09   ` Greg Kroah-Hartman
2019-08-10  4:55 ` kernelci.org bot
2019-08-10 15:45 ` Guenter Roeck
2019-08-11  7:37   ` Greg Kroah-Hartman

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