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Date: Tue, 21 Feb 2017 11:10:38 +0530 From: Abdul Haleem <abdhalee@...ux.vnet.ibm.com> To: fweisbec@...il.com Cc: linuxppc-dev@...ts.ozlabs.org, mpe@...erman.id, linux-kernel@...r.kernel.org, fbarrat@...ux.vnet.ibm.com, aneesh.kumar@...ux.vnet.ibm.com, Linuxppc-dev <linuxppc-dev-bounces+abdhalee=linux.vnet.ibm.com@...ts.ozlabs.org>, abdul <abdhalee@...ux.vnet.ibm.com> Subject: Re: next-20170220 failed to build on PowerPC On 2017-02-20 16:25, abdul wrote: > Hi, > > next-20170220 fails to build on Power 8 (PowerVM LPAR) with these > errors. > > with same config, next-20170215 builds fine. > > the config file used is attached, by default > CONFIG_VIRT_CPU_ACCOUNTING_NATIVE was not set. > > (X) Simple tick based cputime accounting > ( ) Deterministic task and CPU time accounting > ( ) Full dynticks CPU time accounting > > arch/powerpc/kernel/time.c: In function ‘running_clock’: > arch/powerpc/kernel/time.c:712:25: error: implicit declaration of > function ‘cputime_to_nsecs’ > [-Werror=implicit-function-declaration] > return local_clock() - > cputime_to_nsecs(kcpustat_this_cpu->cpustat[CPUTIME_STEAL]); > ^ > cc1: all warnings being treated as errors > make[1]: *** [arch/powerpc/kernel/time.o] Error 1 > make[1]: *** Waiting for unfinished jobs...., > > Note*: Problem is not seen when CONFIG_VIRT_CPU_ACCOUNTING_NATIVE is > enabled i.e > > ( ) Simple tick based cputime accounting > (X) Deterministic task and CPU time accounting > ( ) Full dynticks CPU time accounting > Bisecting resulted in below commit causing the build break. commit f22d6df0b23e66b6d9058e2570402606a6ad069a Author: Frederic Weisbecker <fweisbec@...il.com> Date: Tue Jan 31 04:09:43 2017 +0100 sched/cputime: Remove jiffies based cputime This cputime_t implementation is now unused, we can remove it. Signed-off-by: Frederic Weisbecker <fweisbec@...il.com> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org> Cc: Fenghua Yu <fenghua.yu@...el.com> Cc: Heiko Carstens <heiko.carstens@...ibm.com> Cc: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@...ibm.com> Cc: Michael Ellerman <mpe@...erman.id.au> Cc: Paul Mackerras <paulus@...ba.org> Cc: Peter Zijlstra <peterz@...radead.org> Cc: Rik van Riel <riel@...hat.com> Cc: Stanislaw Gruszka <sgruszka@...hat.com> Cc: Thomas Gleixner <tglx@...utronix.de> Cc: Tony Luck <tony.luck@...el.com> Cc: Wanpeng Li <wanpeng.li@...mail.com> Link: http://lkml.kernel.org/r/1485832191-26889-28-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar <mingo@...nel.org> Regard's Abdul Haleem IBM Linux Technology Center.
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