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SubjectUniprocessor Compile error: 2.4.15-pre4 (-tr) in kernel.o (cpu_init()) - Works with SMP
> linux-2.4.14.tar (kernel tar)
> patch-2.4.15-pre4 (merge)
> fix-2.4.15-pre4-tr.diff (benlahaise; don't mind the filename, i just
> reckon calling the patch for the patch,
> patch-2.4.* is brokenness)

> arch/i386/kernel/kernel.o: In function 'cpu_init':
> arch/i386/kernel/kernel.o(.text.init+0x27f9): undefined reference to 'cpucount'
> arch/i386/kernel/kernel.o(.text.init+0x2831): undefined reference to 'cpucount'
> Segment of kernel.o containing the offender:
> ================
> * cpu_init() initializes state that is per-CPU. Some data is already
> @@ -2815,14 +2817,15 @@
> */
> void __init cpu_init (void)
> {
> - int nr = smp_processor_id();
> + int nr = cpucount;
> + struct task_struct *cur = init_tasks[nr];
> struct tss_struct * t = &init_tss[nr];

> if (test_and_set_bit(nr, &cpu_initialized)) {
> printk(KERN_WARNING "CPU#%d already initialized!\n", nr);
> for (;;) __sti();


SMP compile succeeded. (albeit with lots of warnings on 'pure')

It seems cpucount is only defined when SMP is compiled in, I guess cpucount
hasn't been set to 1 in uniprocessor build, breaking non-smp builds?
How can I hardcode that into setup.c? I know little of C, so if someone could
point out a line of code to set this (diff even?) :)

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