linux-kernel - Re: [PATCH v2] net: ethernet: remove unnecessary parentheses

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Message-ID: <d00b1a28-24ae-4487-8a8a-b08a84a4ce4a@wanadoo.fr>
Date: Sat, 3 Aug 2024 12:22:01 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Moon Yeounsu <yyyynoom@...il.com>, cooldavid@...ldavid.org,
 davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, horms@...nel.org
Subject: Re: [PATCH v2] net: ethernet: remove unnecessary parentheses

Hi,

this is not how things work.
This v2 depends on the previous v1. It shouldn't.

v2 should be a standalone patch which includes v1 and all modifications 
done afterward.


When you send a new patch you should:
   - give an history of changes, below the ---. See [1]
   - eventually give links to previous version
   - your new version should not be threaded with the previous mails. It 
should start a new thread.


Le 03/08/2024 à 04:29, Moon Yeounsu a écrit :
> remove unnecessary parentheses surrounding `ip_hdrlen()`,
> And keep it under 80 columns long to follow the kernel coding style.
> 
> Signed-off-by: Moon Yeounsu <yyyynoom@...il.com>
> ---

[1]: here.

*As an example*, I would have done as follow, but there is no rule 
(AFAIK) for this section.


Changes in v2:
   - Remove extra ()   [Christophe Jaillet, Simon Horman]
   - Break long lines   [Simon Horman]

v1: https://lore.kernel.org/all/20240802054421.5428-1-yyyynoom@gmail.com/

>   drivers/net/ethernet/jme.c | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c
> index 83b185c995df..d8be0e4dcb07 100644
> --- a/drivers/net/ethernet/jme.c
> +++ b/drivers/net/ethernet/jme.c
> @@ -947,12 +947,12 @@ jme_udpsum(struct sk_buff *skb)
>   		return csum;
>   	skb_set_network_header(skb, ETH_HLEN);
>   
> -	if ((ip_hdr(skb)->protocol != IPPROTO_UDP) ||
> -	    (skb->len < (ETH_HLEN + (ip_hdrlen(skb)) + sizeof(struct udphdr)))) {
> +	if (ip_hdr(skb)->protocol != IPPROTO_UDP ||
> +	    skb->len < (ETH_HLEN + ip_hdrlen(skb) + sizeof(struct udphdr))) {
>   		skb_reset_network_header(skb);
>   		return csum;
>   	}
> -	skb_set_transport_header(skb, ETH_HLEN + (ip_hdrlen(skb)));
> +	skb_set_transport_header(skb, ETH_HLEN + ip_hdrlen(skb));
>   	csum = udp_hdr(skb)->check;
>   	skb_reset_transport_header(skb);
>   	skb_reset_network_header(skb);