target/linux/lantiq/patches-5.15/0321-v6.8-MIPS-lantiq-register-smp_ops-on-non-smp-platforms.patch

   1 From 4bf2a626dc4bb46f0754d8ac02ec8584ff114ad5 Mon Sep 17 00:00:00 2001
   2 From: Aleksander Jan Bajkowski <olek2@wp.pl>
   3 Date: Mon, 22 Jan 2024 19:47:09 +0100
   4 Subject: [PATCH] MIPS: lantiq: register smp_ops on non-smp platforms
   5
   6 Lantiq uses a common kernel config for devices with 24Kc and 34Kc cores.
   7 The changes made previously to add support for interrupts on all cores
   8 work on 24Kc platforms with SMP disabled and 34Kc platforms with SMP
   9 enabled. This patch fixes boot issues on Danube (single core 24Kc) with
  10 SMP enabled.
  11
  12 Fixes: 730320fd770d ("MIPS: lantiq: enable all hardware interrupts on second VPE")
  13 Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
  14 Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
  15 ---
  16  arch/mips/lantiq/prom.c | 7 +++----
  17  1 file changed, 3 insertions(+), 4 deletions(-)
  18
  19 --- a/arch/mips/lantiq/prom.c
  20 +++ b/arch/mips/lantiq/prom.c
  21 @@ -117,10 +117,9 @@ void __init prom_init(void)
  22         prom_init_cmdline();
  23
  24  #if defined(CONFIG_MIPS_MT_SMP)
  25 -       if (cpu_has_mipsmt) {
  26 -               lantiq_smp_ops = vsmp_smp_ops;
  27 +       lantiq_smp_ops = vsmp_smp_ops;
  28 +       if (cpu_has_mipsmt)
  29                 lantiq_smp_ops.init_secondary = lantiq_init_secondary;
  30 -               register_smp_ops(&lantiq_smp_ops);
  31 -       }
  32 +       register_smp_ops(&lantiq_smp_ops);
  33  #endif
  34  }