netdev - 回复: [PATCH net v2] net: bonding: Remove error checking for debugfs_create

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Message-ID:
 <SG2PR06MB3743A5D8634634AD0C858DDCBD3BA@SG2PR06MB3743.apcprd06.prod.outlook.com>
Date: Mon, 17 Jul 2023 08:49:51 +0000
From: 王明-软件底层技术部 <machel@...o.com>
To: Jay Vosburgh <jay.vosburgh@...onical.com>
CC: Andy Gospodarek <andy@...yhouse.net>, "David S. Miller"
	<davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski
	<kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>,
	opensource.kernel <opensource.kernel@...o.com>
Subject:
 回复: [PATCH net v2] net: bonding: Remove error checking for debugfs_create_dir()

Ok, I will amend v1 and resubmit v3.
Regards
Wang Ming

-----邮件原件-----
发件人: Jay Vosburgh <jay.vosburgh@...onical.com> 
发送时间: 2023年7月15日 0:12
收件人: 王明-软件底层技术部 <machel@...o.com>
抄送: Andy Gospodarek <andy@...yhouse.net>; David S. Miller <davem@...emloft.net>; Eric Dumazet <edumazet@...gle.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni <pabeni@...hat.com>; netdev@...r.kernel.org; linux-kernel@...r.kernel.org; opensource.kernel <opensource.kernel@...o.com>
主题: Re: [PATCH net v2] net: bonding: Remove error checking for debugfs_create_dir()

[????????? jay.vosburgh@...onical.com ????????? https://aka.ms/LearnAboutSenderIdentification?????????????]

Wang Ming <machel@...o.com> wrote:

>It is expected that most callers should _ignore_ the errors return by 
>debugfs_create_dir() in bond_debug_reregister().

        Why should the error be ignored?  It's not a fatal error, in the sense that the bond itself should be unregistered, but I'm not sure why an error message that the debugfs registration failed is undesirable.

        Also, the code in question is in bond_create_debugfs(), not bond_debug_reregister().  The diff below looks a bit odd in that the context line lists _reregister, but that's not the function being changed.

        I thought the v1 patch was fine.

        -J

>Signed-off-by: Wang Ming <machel@...o.com>
>---
> drivers/net/bonding/bond_debugfs.c | 3 ---
> 1 file changed, 3 deletions(-)
>
>diff --git a/drivers/net/bonding/bond_debugfs.c 
>b/drivers/net/bonding/bond_debugfs.c
>index 594094526648..a41f765420dc 100644
>--- a/drivers/net/bonding/bond_debugfs.c
>+++ b/drivers/net/bonding/bond_debugfs.c
>@@ -87,9 +87,6 @@ void bond_debug_reregister(struct bonding *bond)  
>void bond_create_debugfs(void)  {
>       bonding_debug_root = debugfs_create_dir("bonding", NULL);
>-
>-      if (!bonding_debug_root)
>-              pr_warn("Warning: Cannot create bonding directory in debugfs\n");
> }
>
> void bond_destroy_debugfs(void)
>--
>2.25.1
>

---
        -Jay Vosburgh, jay.vosburgh@...onical.com