linux-kernel - Re: [PATCH net-next 5/5] vxge: avoid -Wemtpy-body warnings

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Date:   Wed, 24 Mar 2021 21:08:38 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Networking <netdev@...r.kernel.org>, Jon Mason <jdmason@...zu.us>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next 5/5] vxge: avoid -Wemtpy-body warnings

On Mon, Mar 22, 2021 at 11:43 AM Arnd Bergmann <arnd@...nel.org> wrote:
>
> From: Arnd Bergmann <arnd@...db.de>
>
> There are a few warnings about empty debug macros in this driver:
>
> drivers/net/ethernet/neterion/vxge/vxge-main.c: In function 'vxge_probe':
> drivers/net/ethernet/neterion/vxge/vxge-main.c:4480:76: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
>  4480 |                                 "Failed in enabling SRIOV mode: %d\n", ret);
>
> Change them to proper 'do { } while (0)' expressions to make the
> code a little more robust and avoid the warnings.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Please disregard this patch, I was accidentally building without -Wformat and
failed to notice that this introduces a regression. I'll send a new
version after
more testing.

       Arnd