netdev - Re: [PATCH 08/17] nfp: no need to check return value of debugfs

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Date:   Tue, 6 Aug 2019 09:50:08 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Edwin Peer <edwin.peer@...ronome.com>,
        Yangtao Li <tiny.windzz@...il.com>,
        Simon Horman <simon.horman@...ronome.com>,
        oss-drivers@...ronome.com
Subject: Re: [PATCH 08/17] nfp: no need to check return value of
 debugfs_create functions

On Tue,  6 Aug 2019 18:11:19 +0200, Greg Kroah-Hartman wrote:
> When calling debugfs functions, there is no need to ever check the
> return value.  The function can work or not, but the code logic should
> never do something different based on this.
> 
> Cc: Jakub Kicinski <jakub.kicinski@...ronome.com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Alexei Starovoitov <ast@...nel.org>
> Cc: Daniel Borkmann <daniel@...earbox.net>
> Cc: Jesper Dangaard Brouer <hawk@...nel.org>
> Cc: John Fastabend <john.fastabend@...il.com>
> Cc: Edwin Peer <edwin.peer@...ronome.com>
> Cc: Yangtao Li <tiny.windzz@...il.com>
> Cc: Simon Horman <simon.horman@...ronome.com>
> Cc: oss-drivers@...ronome.com
> Cc: netdev@...r.kernel.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

Acked-by: Jakub Kicinski <jakub.kicinski@...ronome.com>

I take it this is the case since commit ff9fb72bc077 ("debugfs: return
error values, not NULL")? I.e. v5.0? It'd be useful to know for backport
purposes.