Subject: Re: linux-next: build failure after merge of the tip tree

From: Peter Zijlstra <[email-masked]>
Date: Wed, 3 Mar 2021 10:44:32 +0100

On Wed, Mar 03, 2021 at 10:38:42AM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
> failed like this:
> 
> In file included from drivers/usb/usbip/usbip_common.c:18:
> drivers/usb/usbip/usbip_common.h: In function 'usbip_kcov_handle_init':
> drivers/usb/usbip/usbip_common.h:348:20: error: implicit declaration of function 'kcov_common_handle' [-Werror=implicit-function-declaration]
>   348 |  ud->kcov_handle = kcov_common_handle();
>       |                    ^~~~~~~~~~~~~~~~~~
> drivers/usb/usbip/usbip_common.h: In function 'usbip_kcov_remote_start':
> drivers/usb/usbip/usbip_common.h:353:2: error: implicit declaration of function 'kcov_remote_start_common' [-Werror=implicit-function-declaration]
>   353 |  kcov_remote_start_common(ud->kcov_handle);
>       |  ^~~~~~~~~~~~~~~~~~~~~~~~
> drivers/usb/usbip/usbip_common.h: In function 'usbip_kcov_remote_stop':
> drivers/usb/usbip/usbip_common.h:358:2: error: implicit declaration of function 'kcov_remote_stop'; did you mean 'usbip_kcov_remote_stop'? [-Werror=implicit-function-declaration]
>   358 |  kcov_remote_stop();
>       |  ^~~~~~~~~~~~~~~~
>       |  usbip_kcov_remote_stop
> 
> Caused by commit
> 
>   eae7a59d5a1e ("kcov: Remove kcov include from sched.h and move it to its users.")
> 
> I have used the tip tree from next-20210302 for today.

Damn, sorry about that. I've rebased tip/sched/core and all should be
well now.