linux-kernel - Re: [net PATCH 1/9] octeontx2-pf: Do not modify number of rules

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Message-ID: <20210316100252.75826dd3@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Tue, 16 Mar 2021 10:02:52 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Hariprasad Kelam <hkelam@...vell.com>
Cc:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <davem@...emloft.net>, <sgoutham@...vell.com>,
        <lcherian@...vell.com>, <gakula@...vell.com>, <jerinj@...vell.com>,
        <sbhatta@...vell.com>
Subject: Re: [net PATCH 1/9] octeontx2-pf: Do not modify number of rules

On Tue, 16 Mar 2021 14:57:05 +0530 Hariprasad Kelam wrote:
> From: Subbaraya Sundeep <sbhatta@...vell.com>
> 
> In the ETHTOOL_GRXCLSRLALL ioctl ethtool uses
> below structure to read number of rules from the driver.
> 
>     struct ethtool_rxnfc {
>             __u32                           cmd;
>             __u32                           flow_type;
>             __u64                           data;
>             struct ethtool_rx_flow_spec     fs;
>             union {
>                     __u32                   rule_cnt;
>                     __u32                   rss_context;
>             };
>             __u32                           rule_locs[0];
>     };
> 
> Driver must not modify rule_cnt member. But currently driver
> modifies it by modifying rss_context. Hence fix it by using a
> local variable.
> 
> Fixes: 81a43620("octeontx2-pf: Add RSS multi group support")

Fixes tag: Fixes: 81a43620("octeontx2-pf: Add RSS multi group support")
Has these problem(s):
	- missing space between the SHA1 and the subject
	- SHA1 should be at least 12 digits long
	  Can be fixed by setting core.abbrev to 12 (or more) or (for git v2.11
	  or later) just making sure it is not set (or set to "auto").

Please fix the entire submission.