linux-kernel - Re: [PATCH] mt76: fix LED link time failure

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Message-Id: <20191218182517.D85B8C447A3@smtp.codeaurora.org>
Date:   Wed, 18 Dec 2019 18:25:17 +0000 (UTC)
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Felix Fietkau <nbd@....name>,
        Lorenzo Bianconi <lorenzo.bianconi83@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Ryder Lee <ryder.lee@...iatek.com>,
        Roy Luo <royluo@...gle.com>,
        Stanislaw Gruszka <sgruszka@...hat.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mt76: fix LED link time failure

Arnd Bergmann <arnd@...db.de> wrote:

> The mt76_led_cleanup() function is called unconditionally, which
> leads to a link error when CONFIG_LEDS is a loadable module or
> disabled but mt76 is built-in:
> 
> drivers/net/wireless/mediatek/mt76/mac80211.o: In function `mt76_unregister_device':
> mac80211.c:(.text+0x2ac): undefined reference to `led_classdev_unregister'
> 
> Use the same trick that is guarding the registration, using an
> IS_ENABLED() check for the CONFIG_MT76_LEDS symbol that indicates
> whether LEDs can be used or not.
> 
> Fixes: 36f7e2b2bb1d ("mt76: do not use devm API for led classdev")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Acked-by: Felix Fietkau <nbd@....name>

Patch applied to wireless-drivers.git, thanks.

d68f4e43a46f mt76: fix LED link time failure

-- 
https://patchwork.kernel.org/patch/11294195/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches