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Date:   Fri, 18 Sep 2020 17:41:48 +0300
From:   Kalle Valo <>
To:     Zhang Changzhong <>
Cc:     <>, <>, <>,
Subject: Re: [PATCH net-next] net: brcmfmac: check return value of driver_for_each_device()

+ linux-wireless

Zhang Changzhong <> writes:

> Fixes the following W=1 kernel build warning(s):
> drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c:1576:6: warning:
>  variable 'ret' set but not used [-Wunused-but-set-variable]
>   1576 |  int ret;
>        |      ^~~
> driver_for_each_device() has been declared with __must_check, so the
> return value should be checked.
> Signed-off-by: Zhang Changzhong <>

Please cc linux-wireless on all wireless patches. Otherwise our
patchwork won't see it and I can't apply it. So please resend as v2.


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