linux-kernel - Re: [PATCH] net: ethernet/nvidia: fix possible condition with no effect

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Message-ID: <20220627113812.08ae31f0@kernel.org>
Date:   Mon, 27 Jun 2022 11:38:12 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Praghadeesh T K S <praghadeeshthevendria@...il.com>,
        Rain River <rain.1986.08.12@...il.com>,
        Zhu Yanjun <zyjzyj2000@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, skhan@...uxfoundation.org,
        praghadeeshtks@...omail.in,
        linux-kernel-mentees@...ts.linuxfoundation.org
Subject: Re: [PATCH] net: ethernet/nvidia: fix possible condition with no
 effect

On Sun, 26 Jun 2022 13:08:37 +0200 Andrew Lunn wrote:
> On Sun, Jun 26, 2022 at 10:35:39AM +0000, Praghadeesh T K S wrote:
> > Fix Coccinelle bug, removed condition with no effect.  
> 
> This is not a coccinelle bug. If it was, you would be patching
> coccinelle, not the kernel.

I'd say the commit message is better than the commit ;)
Praghadeesh, could you fix Coccinelle to avoid matching:

	if (/* case 1 */) {
		/* BLOCK 1*/
	} else (/* case 2 */ {
		/* BLOCK 2 */
	} else {
		/* default == BLOCK 2 */
	}

Because 99% of the time that construct is intentional.