RE: [PATCH] qed: fix possible unpaired spin_{un}lock_bh in _qed_mcp_cmd_and_union()

-----Original Message-----
From: patchwork-bot+netdevbpf@kernel.org <patchwork-
bot+netdevbpf@kernel.org>
Sent: Friday, July 16, 2021 3:50 AM
To: Justin He <redacted>
Cc: aelior@marvell.com; GR-everest-linux-l2@marvell.com;
davem@davemloft.net; kuba@kernel.org; netdev@vger.kernel.org; linux-
kernel@vger.kernel.org; nd [off-list ref]
Subject: Re: [PATCH] qed: fix possible unpaired spin_{un}lock_bh in
_qed_mcp_cmd_and_union()

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Thu, 15 Jul 2021 16:08:21 +0800 you wrote:

quoted

Liajian reported a bug_on hit on a ThunderX2 arm64 server with FastLinQ
QL41000 ethernet controller:
 BUG: scheduling while atomic: kworker/0:4/531/0x00000200
  [qed_probe:488()]hw prepare failed
  kernel BUG at mm/vmalloc.c:2355!
  Internal error: Oops - BUG: 0 [#1] SMP
  CPU: 0 PID: 531 Comm: kworker/0:4 Tainted: G W 5.4.0-77-generic #86-

Ubuntu

quoted

  pstate: 00400009 (nzcv daif +PAN -UAO)
 Call trace:
  vunmap+0x4c/0x50
  iounmap+0x48/0x58
  qed_free_pci+0x60/0x80 [qed]
  qed_probe+0x35c/0x688 [qed]
  __qede_probe+0x88/0x5c8 [qede]
  qede_probe+0x60/0xe0 [qede]
  local_pci_probe+0x48/0xa0
  work_for_cpu_fn+0x24/0x38
  process_one_work+0x1d0/0x468
  worker_thread+0x238/0x4e0
  kthread+0xf0/0x118
  ret_from_fork+0x10/0x18

[...]

Here is the summary with links:
  - qed: fix possible unpaired spin_{un}lock_bh in _qed_mcp_cmd_and_union()
    https://git.kernel.org/netdev/net/c/6206b7981a36

You are awesome, thank you!

Thanks.
If possible, please also Cc: stable@kernel.org because the bug seemed to
be there for a long time.


--
Cheers,
Justin (Jia He)