答复: [PATCH v2] usb: xhci: remove the code build warning

From: gengdongjiu
Date: Sat Jun 16 2018 - 05:08:36 EST


> On Wed, Jun 06, 2018 at 10:36:59PM +0800, Dongjiu Geng wrote:
> > Initialize the 'err' variate to remove the build warning, the warning
> > is shown as below:
> >
> > drivers/usb/host/xhci-tegra.c: In function 'tegra_xusb_mbox_thread':
> > drivers/usb/host/xhci-tegra.c:552:6: warning: 'err' may be used
> > uninitialized in this function [-Wuninitialized]
> > drivers/usb/host/xhci-tegra.c:482:6: note: 'err' was declared here
> >
> > Signed-off-by: Dongjiu Geng <gengdongjiu@xxxxxxxxxx>
> > Acked-by: Thierry Reding <treding@xxxxxxxxxx>
> > ---
> > How to reproduce:
> > 1. make defconfig ARCH=arm
> > 2. make -j100 CROSS_COMPILE=arm-linux-gnueabi- ARCH=arm
> >
> > Then you can see below warnings:
> > drivers/usb/host/xhci-tegra.c: In function 'tegra_xusb_mbox_thread':
> > drivers/usb/host/xhci-tegra.c:552:6: warning: 'err' may be used
> > uninitialized in this function [-Wuninitialized]
> > drivers/usb/host/xhci-tegra.c:482:6: note: 'err' was declared here
>
> What changed from v1? Always put that below the --- line.
>
> Please fix up and resend a v3.


Thanks, I justly add "Acked-by: Thierry Reding <treding@xxxxxxxxxx>" in the V2 compared with v1
Anyway I will put that below and resend a v3.

>
> thanks,
>
> greg k-h