linux-kernel - Re: [PATCH][next] tipc: remove redundant assignment to ret, simplify code

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Date: Thu, 11 Apr 2024 11:43:47 +0100
From: "Colin King (gmail)" <colin.i.king@...il.com>
To: Dan Carpenter <dan.carpenter@...aro.org>,
 Tung Quang Nguyen <tung.q.nguyen@...tech.com.au>
Cc: Jon Maloy <jmaloy@...hat.com>, Ying Xue <ying.xue@...driver.com>,
 "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>,
 "tipc-discussion@...ts.sourceforge.net"
 <tipc-discussion@...ts.sourceforge.net>,
 "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH][next] tipc: remove redundant assignment to ret, simplify
 code

On 11/04/2024 11:31, Dan Carpenter wrote:
> On Thu, Apr 11, 2024 at 10:04:10AM +0000, Tung Quang Nguyen wrote:
>>>
>> I suggest that err variable should be completely removed. Could you
>> please also do the same thing for this code ?
>> "
>> ...
>> err = skb_handler(skb, cb, tsk);
>> if (err) {
> 
> If we write the code as:
> 
> 	if (some_function(parameters)) {
> 
> then at first that looks like a boolean.  People probably think the
> function returns true/false.  But if we leave it as-is:
> 
> 	err = some_function(parameters);
> 	if (err) {
> 
> Then that looks like error handling.
> 
> So it's better and more readable to leave it as-is.
> 
> regards,
> dan carpenter

I concur with Dan's comments.

Colin