netdev - Re: [PATCH] neighbor: tracing: Have neigh_create event use _

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Date:   Tue, 5 Jul 2022 19:43:58 -0600
From:   David Ahern <dsahern@...il.com>
To:     Steven Rostedt <rostedt@...dmis.org>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH] neighbor: tracing: Have neigh_create event use __string()

On 7/5/22 4:37 PM, Steven Rostedt wrote:
> From: "Steven Rostedt (Google)" <rostedt@...dmis.org>
> 
> The dev field of the neigh_create event uses __dynamic_array() with a
> fixed size, which defeats the purpose of __dynamic_array(). Looking at the
> logic, as it already uses __assign_str(), just use the same logic in
> __string to create the size needed. It appears that because "dev" can be
> NULL, it needs the check. But __string() can have the same checks as
> __assign_str() so use them there too.
> 
> Cc: David Ahern <dsahern@...il.com>
> Cc: David S. Miller <davem@...emloft.net>
> Cc: netdev@...r.kernel.org
> Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
> ---
> 
> [ This is simpler logic than the fib* events, so I figured just
>   convert to __string() instead of a static __array() ]
> 

agreed.

Reviewed-by: David Ahern <dsahern@...nel.org>