On Thu, Nov 06, 2008 at 01:15:07PM -0600, Christoph Lameter wrote: > On Thu, 6 Nov 2008, Alexey Dobriyan wrote: > > > On blackfin-BF526-EZBRD and other blackfins: > > > > LD .tmp_vmlinux1 > > mm/built-in.o: In function `cpu_alloc_init': > > (.init.text+0x1486): undefined reference to `__per_cpu_start' > > mm/built-in.o: In function `cpu_alloc_init': > > (.init.text+0x148c): undefined reference to `__per_cpu_start' > > mm/built-in.o: In function `cpu_alloc_init': > > (.init.text+0x1492): undefined reference to `__per_cpu_end' > > mm/built-in.o: In function `cpu_alloc_init': > > (.init.text+0x1496): undefined reference to `__per_cpu_end' > > Any contigencies for __per_cpu_start/end in your blackfin vmlinux.lds.h? > That is where these symbols are defined > > Or did you use generic percpu support and set > CONFIG_HAVE_ZERO_BASED_PER_CPU? References are coming from PERCPU_AREA_SIZE. This works, but I have no idea if this correct: --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -51,6 +51,8 @@ #define DEFINE_PER_CPU_FIRST(type, name) \ DEFINE_PER_CPU(type, name) +#define PERCPU_AREA_SIZE 0 + #endif /* !CONFIG_SMP */ #define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html