Messages in this thread | | | Date | Sat, 11 Oct 2014 15:16:21 +0200 | From | Frederic Weisbecker <> | Subject | Re: [PATCH] arm64: Fix compile error seen in non-SMP builds |
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On Fri, Oct 10, 2014 at 06:15:34PM -0700, Guenter Roeck wrote: > Fix: > > 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/ftrace_event.h:9, > from include/trace/syscall.h:6, > from include/linux/syscalls.h:81, > from init/main.c:18: > ./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 > #define raw_smp_processor_id() (current_thread_info()->cpu) > ^ > > and: > > In file included from ./arch/arm64/include/asm/irq_work.h:4:0, > from include/linux/irq_work.h:46, > from kernel/irq_work.c:11: > ./arch/arm64/include/asm/smp_plat.h:56:30: > error: ‘NR_CPUS’ undeclared here (not in a function) > extern u64 __cpu_logical_map[NR_CPUS]; > > by providing a helper function in smp_plat.h, similar to the arm implementation, > and by removing NR_CPUS from smp_plat.h. > > Fixes: 3631073659d0 ("arm64: Tell irq work about self IPI support") > Cc: Frederic Weisbecker <fweisbec@gmail.com> > Signed-off-by: Guenter Roeck <linux@roeck-us.net>
That looks good to me.
Note, ARM64 is one of the archs I couldn't test due to the lack of a nolibc cross compiler in https://www.kernel.org/pub/tools/crosstool/
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