netdev - Re: [RFC PATCH 2/2] net: convert to nla_get_*

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Message-ID: <6461c18e0be520b4f7ecefc910af5d8dd205bce9.camel@sipsolutions.net>
Date: Thu, 24 Oct 2024 14:11:05 +0200
From: Johannes Berg <johannes@...solutions.net>
To: linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [RFC PATCH 2/2] net: convert to nla_get_*_default()

On Thu, 2024-10-24 at 13:18 +0200, Johannes Berg wrote:
> From: Johannes Berg <johannes.berg@...el.com>
> 
> This is mostly to illustrate, done with the following spatch:
> 

And we can extend that and get bunch more:

@@
expression attr, def;
expression val;
identifier fn =~ "^nla_get_.*";
fresh identifier dfn = fn ## "_default";
@@
(
-if (attr)
-  val = fn(attr);
-else
-  val = def;
+val = dfn(attr, def);
|
-if (!attr)
-  val = def;
-else
-  val = fn(attr);
+val = dfn(attr, def);
|
-val = def;
... where != val;
-if (attr)
-  val = fn(attr);
+val = dfn(attr, def);
|
-if (!attr)
-  return def;
-return fn(attr);
+return dfn(attr, def);
)


(also just running it multiple times finds more instances?!)


johannes