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Subject: Re: [PATCH] Bluetooth: btusb: avoid unused function warning
From:   Marcel Holtmann <marcel@holtmann.org>
In-Reply-To: <20190918195918.2190556-1-arnd@arndb.de>
Date:   Fri, 27 Sep 2019 08:43:12 +0200
Cc:     Johan Hedberg <johan.hedberg@gmail.com>,
        Alex Lu <alex_lu@realsil.com.cn>,
        Matthias Kaehlcke <mka@chromium.org>,
        Rajat Jain <rajatja@google.com>,
        Raghuram Hegde <raghuram.hegde@intel.com>,
        linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org
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References: <20190918195918.2190556-1-arnd@arndb.de>
To:     Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

> The btusb_rtl_cmd_timeout() function is used inside of an
> ifdef, leading to a warning when this part is hidden
> from the compiler:
> 
> drivers/bluetooth/btusb.c:530:13: error: unused function 'btusb_rtl_cmd_timeout' [-Werror,-Wunused-function]
> 
> Use an IS_ENABLED() check instead so the compiler can see
> the code and then discard it silently.
> 
> Fixes: d7ef0d1e3968 ("Bluetooth: btusb: Use cmd_timeout to reset Realtek device")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/bluetooth/btusb.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel