Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: arm64 non-SMP build error in latest upstream kernel | Date | Thu, 09 Oct 2014 23:43:15 +0200 |
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On Thursday 09 October 2014 14:34:27 Guenter Roeck wrote: > Configuration: arm64 defconfig, -SMP > > Error: > > In file included from ./arch/arm64/include/asm/irq_work.h:4:0, > from include/linux/irq_work.h:46, > from include/linux/perf_event.h:49, > from include/linux/hw_breakpoint.h:4, > from arch/arm64/kernel/process.c:43: > ./arch/arm64/include/asm/smp.h:24:3: error: #error "<asm/smp.h> included in non-SMP build" > # error "<asm/smp.h> included in non-SMP build" > ^ > ./arch/arm64/include/asm/smp.h:27:0: warning: "raw_smp_processor_id" redefined [enabled by default] > #define raw_smp_processor_id() (current_thread_info()->cpu) > ^ > In file included from include/linux/sched.h:34:0, > from ./arch/arm64/include/asm/compat.h:25, > from ./arch/arm64/include/asm/stat.h:23, > from include/linux/stat.h:5, > from include/linux/compat.h:10, > from arch/arm64/kernel/process.c:23: > include/linux/smp.h:129:0: note: this is the location of the previous definition > #define raw_smp_processor_id() 0 > > This is just one example; the error is seen multiple times. > > Let me know if you need me to bisect.
It must be caused by 3631073659d0a ("arm64: Tell irq work about self IPI support"), which recently added the asm/irq_work.h file.
Reverting that patch makes it build again.
Arnd
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