linux-kernel - Re: [PATCH -next] Bluetooth: btusb: Remove return statement in btintel_reset_to

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Message-ID: <CAKwvOdnycftgCanEt_BpUOB9Uo0sderk1HZp3H4EQ8drAmjohA@mail.gmail.com>
Date:   Fri, 18 Oct 2019 15:39:08 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Nathan Chancellor <natechancellor@...il.com>
Cc:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Amit K Bag <amit.k.bag@...el.com>,
        Chethan T N <chethan.tumkur.narayan@...el.com>,
        Raghuram Hegde <raghuram.hegde@...el.com>,
        linux-bluetooth@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH -next] Bluetooth: btusb: Remove return statement in btintel_reset_to_bootloader

On Fri, Oct 18, 2019 at 3:29 PM Nathan Chancellor
<natechancellor@...il.com> wrote:
>
> When building with Clang and CONFIG_BT_INTEL unset, the following error
> occurs:
>
> In file included from drivers/bluetooth/hci_ldisc.c:34:
> drivers/bluetooth/btintel.h:188:2: error: void function
> 'btintel_reset_to_bootloader' should not return a value [-Wreturn-type]
>         return -EOPNOTSUPP;
>         ^      ~~~~~~~~~~~
> 1 error generated.
>
> Remove the unneeded return statement to fix this.
>
> Fixes: b9a2562f4918 ("Bluetooth: btusb: Trigger Intel FW download error recovery")
> Link: https://github.com/ClangBuiltLinux/linux/issues/743
> Reported-by: <ci_notify@...aro.org>
> Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
> Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
> ---
>  drivers/bluetooth/btintel.h | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/bluetooth/btintel.h b/drivers/bluetooth/btintel.h
> index d2311156f778..a69ea8a87b9b 100644
> --- a/drivers/bluetooth/btintel.h
> +++ b/drivers/bluetooth/btintel.h
> @@ -185,6 +185,5 @@ static inline int btintel_download_firmware(struct hci_dev *dev,
>
>  static inline void btintel_reset_to_bootloader(struct hci_dev *hdev)
>  {
> -       return -EOPNOTSUPP;


The existing structure of this code is fishy, but I see what is going on with:
 65 #if IS_ENABLED(CONFIG_BT_INTEL)
drivers/bluetooth/btintel.h

Thanks for the patch
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>

>  }
>  #endif

-- 
Thanks,
~Nick Desaulniers