netdev - Re: [PATCH net v5] ethtool: check device is present when getting link settings

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Message-Id: 
 <172471142650.144512.6072386483155129089.git-patchwork-notify@kernel.org>
Date: Mon, 26 Aug 2024 22:30:26 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Jamie Bainbridge <jamie.bainbridge@...il.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, suresh2514@...il.com, johannes@...solutions.net,
 syoshida@...hat.com, horms@...nel.org, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v5] ethtool: check device is present when getting link
 settings

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Fri, 23 Aug 2024 16:26:58 +1000 you wrote:
> A sysfs reader can race with a device reset or removal, attempting to
> read device state when the device is not actually present. eg:
> 
>      [exception RIP: qed_get_current_link+17]
>   #8 [ffffb9e4f2907c48] qede_get_link_ksettings at ffffffffc07a994a [qede]
>   #9 [ffffb9e4f2907cd8] __rh_call_get_link_ksettings at ffffffff992b01a3
>  #10 [ffffb9e4f2907d38] __ethtool_get_link_ksettings at ffffffff992b04e4
>  #11 [ffffb9e4f2907d90] duplex_show at ffffffff99260300
>  #12 [ffffb9e4f2907e38] dev_attr_show at ffffffff9905a01c
>  #13 [ffffb9e4f2907e50] sysfs_kf_seq_show at ffffffff98e0145b
>  #14 [ffffb9e4f2907e68] seq_read at ffffffff98d902e3
>  #15 [ffffb9e4f2907ec8] vfs_read at ffffffff98d657d1
>  #16 [ffffb9e4f2907f00] ksys_read at ffffffff98d65c3f
>  #17 [ffffb9e4f2907f38] do_syscall_64 at ffffffff98a052fb
> 
> [...]

Here is the summary with links:
  - [net,v5] ethtool: check device is present when getting link settings
    https://git.kernel.org/netdev/net/c/a699781c79ec

You are awesome, thank you!
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