linux-kernel - Re: [PATCH 2/2] mlx5: fix mlx5i_grp_sw_update

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Date:   Tue, 16 Nov 2021 20:51:29 +0000
From:   Saeed Mahameed <saeedm@...dia.com>
To:     Tariq Toukan <tariqt@...dia.com>,
        Khalid Manaa <khalidm@...dia.com>,
        "arnd@...nel.org" <arnd@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "leon@...nel.org" <leon@...nel.org>
CC:     "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        Maxim Mikityanskiy <maximmi@...dia.com>,
        Roi Dayan <roid@...dia.com>, Maor Gottlieb <maorg@...dia.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "arnd@...db.de" <arnd@...db.de>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Aya Levin <ayal@...dia.com>
Subject: Re: [PATCH 2/2] mlx5: fix mlx5i_grp_sw_update_stats() stack usage

On Mon, 2021-11-08 at 12:10 +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> The mlx5e_sw_stats structure has grown to the point of triggering
> a warning when put on the stack of a function:
> 
> mlx5/core/ipoib/ipoib.c: In function 'mlx5i_grp_sw_update_stats':
> mlx5/core/ipoib/ipoib.c:136:1: error: the frame size of 1028 bytes is
> larger than 1024 bytes [-Werror=frame-larger-than=]
> 
> In this case, only five of the structure members are actually set,
> so it's sufficient to have those as separate local variables.
> As en_rep.c uses 'struct rtnl_link_stats64' for this, just use
> the same one here for consistency.
> 
> Fixes: def09e7bbc3d ("net/mlx5e: Add HW_GRO statistics")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---

Thanks Arnd, Both patches applied to net-next-mlx5,

Since I will be queuing them up for net-next, I will have to remove the
Fixes tags.