From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Tue, 17 Nov 2015 23:00:18 +0100 Subject: [PATCH] USB: USB_OTG does not depend on PM In-Reply-To: <874mgkjoh2.fsf@saruman.tx.rr.com> References: <7521777.8ZmnT3AlIC@wuerfel> <874mgkjoh2.fsf@saruman.tx.rr.com> Message-ID: <5647698.81XCu85L5D@wuerfel> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tuesday 17 November 2015 15:38:33 Felipe Balbi wrote: > > Arnd Bergmann writes: > > USB_OTG initially depended on USB_SUSPEND, which was later turned into > > PM_RUNTIME and finally into PM. I don't know at what point the dependency > > became unnecessary but it appears to work fine without CONFIG_PM now. > > > > However, we get lots of warnings in randconfig kernels like: > > > > warning: (USB_OTG_FSM && FSL_USB2_OTG && USB_MV_OTG) selects USB_OTG which has unmet direct dependencies (USB_SUPPORT && USB && PM) > > > > whenever CONFIG_PM is disabled and something else selects USB_OTG. > > Let's just drop the dependency to avoid the warnings. > > > > Signed-off-by: Arnd Bergmann > > --- > > I keep seeing this one in my ARM randconfig test > > and how did you test this ? Did you make sure you're not breaking HNP ? > For HNP to happen we depend on a bus_suspend and bus_suspend is only > available on CONFIG_PM, unless that has changed. > > Seems like you've only compile tested this patch, is that correct ? Yes, I compile-tested only and inspected the code briefly without finding anything that contradicted this. It seems I missed the important part as you say, so we should instead add 'depends on PM' for the other symbols. Arnd