linux-kernel - Re: [PATCH] hinic: reduce rss

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Message-Id: <20190628.093215.173840298920978641.davem@davemloft.net>
Date:   Fri, 28 Jun 2019 09:32:15 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     arnd@...db.de
Cc:     aviad.krawczyk@...wei.com, xuechaojing@...wei.com,
        jesse.brandeburg@...el.com, zhaochen6@...wei.com,
        edumazet@...gle.com, dann.frazier@...onical.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] hinic: reduce rss_init stack usage

From: Arnd Bergmann <arnd@...db.de>
Date: Fri, 28 Jun 2019 12:31:44 +0200

> On 32-bit architectures, putting an array of 256 u32 values on the
> stack uses more space than the warning limit:
> 
> drivers/net/ethernet/huawei/hinic/hinic_main.c: In function 'hinic_rss_init':
> drivers/net/ethernet/huawei/hinic/hinic_main.c:286:1: error: the frame size of 1068 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
> 
> I considered changing the code to use u8 values here, since that's
> all the hardware supports, but dynamically allocating the array is
> a more isolated fix here.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied to net-next.

Arnd, please make it clear what tree you are targetting in the
future.  Thank you.