[FSL P50x0] Kernel 6.9-rc1 compiling issue

[Christian Zigotzky <chzigotzky@xenosoft.de>]

I have created a patch:

--- a/arch/powerpc/platforms/85xx/smp.c 2024-03-25 06:14:02.201209476 +0100
+++ b/arch/powerpc/platforms/85xx/smp.c 2024-03-25 06:10:04.421425931 +0100
@@ -393,6 +393,7 @@ static void mpc85xx_smp_kexec_cpu_down(i
         int disable_threadbit = 0;
         long start = mftb();
         long now;
+       int crashing_cpu = -1;

         local_irq_disable();
         hard_irq_disable();

---

-- Christian


On 25 March 2024 at 05:48 am, Christian Zigotzky wrote:
> Hi All,
>
> Compiling of the RC1 of kernel 6.9 doesn’t work anymore for our FSL 
> P5020/P5040 boards [1] since the PowerPC updates 6.9-2 [2].
>
> Error messages:
>
> arch/powerpc/platforms/85xx/smp.c: In function 
> 'mpc85xx_smp_kexec_cpu_down':
> arch/powerpc/platforms/85xx/smp.c:401:13: error: 'crashing_cpu' 
> undeclared (first use in this function); did you mean 'crash_save_cpu'?
>   401 |  if (cpu == crashing_cpu && cpu_thread_in_core(cpu) != 0) {
>       |             ^~~~~~~~~~~~
>       |             crash_save_cpu
> arch/powerpc/platforms/85xx/smp.c:401:13: note: each undeclared 
> identifier is reported only once for each function it appears in
> make[5]: *** [scripts/Makefile.build:244: 
> arch/powerpc/platforms/85xx/smp.o] Error 1
> make[4]: *** [scripts/Makefile.build:485: arch/powerpc/platforms/85xx] 
> Error 2
> make[3]: *** [scripts/Makefile.build:485: arch/powerpc/platforms] Error 2
> make[2]: *** [scripts/Makefile.build:485: arch/powerpc] Error 2
>
> ---
>
> I was able to revert it. After that the compiling works again.
>
> Could you please check the PowerPC updates 6.9-2? [2]
>
> Thanks,
> Christian
>
> [1] http://wiki.amiga.org/index.php?title=X5000
> [2] 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.9-rc1&id=484193fecd2b6349a6fd1554d306aec646ae1a6a