netdev - Re: Linux 4.15-rc3 (uml + bpf_perf

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Date:   Mon, 11 Dec 2017 19:19:31 +0100
From:   Richard Weinberger <richard@....at>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Daniel Borkmann <daniel@...earbox.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        alexei.starovoitov@...il.com, brueckner@...ux.vnet.ibm.com
Subject: Re: Linux 4.15-rc3 (uml + bpf_perf_event.h)

Am Montag, 11. Dezember 2017, 18:27:40 CET schrieb Randy Dunlap:
> On 12/11/2017 02:19 AM, Daniel Borkmann wrote:
> > Hi Randy, hi Richard, [ +Hendrik for c895f6f703ad7dd2f ]
> > 
> > On 12/11/2017 09:32 AM, Richard Weinberger wrote:
> >> Randy,
> >> 
> >> Am Montag, 11. Dezember 2017, 03:42:12 CET schrieb Randy Dunlap:
> >>> On 12/10/2017 06:08 PM, Linus Torvalds wrote:
> >>>> Another week, another rc.
> >>> 
> >>> um (uml) won't build on i386 or x86_64:
> >>>   CC      init/main.o
> >>> 
> >>> In file included from ../include/linux/perf_event.h:18:0,
> >>> 
> >>>                  from ../include/linux/trace_events.h:10,
> >>>                  from ../include/trace/syscall.h:7,
> >>>                  from ../include/linux/syscalls.h:82,
> >>> 
> >>>                  from ../init/main.c:20:
> >>> ../include/uapi/linux/bpf_perf_event.h:11:32: fatal error:
> >>> asm/bpf_perf_event.h: No such file or directory #include
> >>> <asm/bpf_perf_event.h>
> >>> 
> >>>                                 ^
> >>> 
> >>> compilation terminated.
> >>> ../scripts/Makefile.build:310: recipe for target 'init/main.o' failed
> >> 
> >> How do you trigger that build failure?
> >> Can you share your .config?
> 
> Richard, it's just defconfig on both i386 and x86_64.

How odd, here it used to build.
...until I did a make mrproper, and tried again. ;-\

Thanks,
//richard