linux-kernel - Re: [net-next v2 1/6] net: marvell: prestera: Add driver for Prestera family ASIC devices

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Date:   Fri, 24 Jul 2020 17:28:14 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     vadym.kochan@...ision.eu
Cc:     kuba@...nel.org, jiri@...lanox.com, idosch@...lanox.com,
        andrew@...n.ch, oleksandr.mazur@...ision.eu,
        serhiy.boiko@...ision.eu, serhiy.pshyk@...ision.eu,
        volodymyr.mytnyk@...ision.eu, taras.chornyi@...ision.eu,
        andrii.savka@...ision.eu, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, mickeyr@...vell.com
Subject: Re: [net-next v2 1/6] net: marvell: prestera: Add driver for
 Prestera family ASIC devices

From: Vadym Kochan <vadym.kochan@...ision.eu>
Date: Fri, 24 Jul 2020 17:19:52 +0300

> +int prestera_dsa_parse(struct prestera_dsa *dsa, const u8 *dsa_buf)
> +{
> +	u32 *dsa_words = (u32 *)dsa_buf;
 ...
> +	words[0] = ntohl((__force __be32)dsa_words[0]);
> +	words[1] = ntohl((__force __be32)dsa_words[1]);
> +	words[2] = ntohl((__force __be32)dsa_words[2]);
> +	words[3] = ntohl((__force __be32)dsa_words[3]);

Isn't is much easier to declare dsa_words as a "__be32 *" instead of
cast after cast after cast?

> +int prestera_dsa_build(const struct prestera_dsa *dsa, u8 *dsa_buf)
> +{
> +	__be32 *dsa_words = (__be32 *)dsa_buf;

Which you did properly here.