Re: linux-next: build warning after merge of the phy-next tree

From: wlf
Date: Wed Nov 16 2016 - 08:29:13 EST

Hi Stephenï

å 2016å11æ16æ 11:00, Stephen Rothwell åé:
Hi Kishon,

After merging the phy-next tree, today's linux-next build (x86_64
allmodconfig) produced this warning:

drivers/phy/phy-rockchip-inno-usb2.c: In function 'rockchip_chg_detect_work':
drivers/phy/phy-rockchip-inno-usb2.c:717:7: warning: 'tmout' may be used uninitialized in this function [-Wmaybe-uninitialized]
if (tmout) {

Introduced by commit

0c42fe48fd23 ("phy: rockchip-inno-usb2: support otg-port for rk3399")
The variable "tmout" is initialized in the prior code "case USB_CHG_STATE_WAIT_FOR_DCD",
and this case will be executed before "if (tmout)", so I think it's a mis-warning for some
special compiler.

Could you provide me some suggestion about this warning? Should I upload a new patch to
fix this compiler mis-warning or just ignore it ï :-)

Best regardsï