netdev - Re: [PATCH 08/26] brcmsmac: make some local variables 'static const' to reduce stack size

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Message-ID: <87y3wi74y8.fsf@purkki.adurom.net>
Date:   Mon, 06 Mar 2017 18:19:59 +0200
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Arend Van Spriel <arend.vanspriel@...adcom.com>,
        Arnd Bergmann <arnd@...db.de>
Cc:     kasan-dev@...glegroups.com,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-wireless@...r.kernel.org,
        kernel-build-reports@...ts.linaro.org,
        "David S . Miller" <davem@...emloft.net>
Subject: Re: [PATCH 08/26] brcmsmac: make some local variables 'static const' to reduce stack size

Arend Van Spriel <arend.vanspriel@...adcom.com> writes:

> On 2-3-2017 17:38, Arnd Bergmann wrote:
>> With KASAN and a couple of other patches applied, this driver is one
>> of the few remaining ones that actually use more than 2048 bytes of
>> kernel stack:
>> 
>> broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function 'wlc_phy_workarounds_nphy_gainctrl':
>> broadcom/brcm80211/brcmsmac/phy/phy_n.c:16065:1: warning: the frame size of 3264 bytes is larger than 2048 bytes [-Wframe-larger-than=]
>> broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function 'wlc_phy_workarounds_nphy':
>> broadcom/brcm80211/brcmsmac/phy/phy_n.c:17138:1: warning: the frame size of 2864 bytes is larger than 2048 bytes [-Wframe-larger-than=]
>> 
>> Here, I'm reducing the stack size by marking as many local variables as
>> 'static const' as I can without changing the actual code.
>
> Acked-by: Arend van Spriel <arend.vanspriel@...adcom.com>

Arnd, via which tree are you planning to submit these? I'm not sure
what I should do with the wireless drivers patches from this series.

-- 
Kalle Valo