From e1f14a4071406fbb0cd41b031027133206762b47 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Fri, 19 May 2023 12:12:06 +0200 Subject: [PATCH] parisc: Use num_present_cpus() in alternative patching code commit b6405f0829d7b1dd926ba3ca5f691cab835abfaa upstream. When patching the kernel code some alternatives depend on SMP vs. !SMP. Use the value of num_present_cpus() instead of num_online_cpus() to decide, otherwise we may run into issues if and additional CPU is enabled after having loaded a module while only one CPU was enabled. Signed-off-by: Helge Deller Cc: # v6.1+ Signed-off-by: Greg Kroah-Hartman --- arch/parisc/kernel/alternative.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/parisc/kernel/alternative.c b/arch/parisc/kernel/alternative.c index 66f5672c70bd..25c4d6c3375d 100644 --- a/arch/parisc/kernel/alternative.c +++ b/arch/parisc/kernel/alternative.c @@ -25,7 +25,7 @@ void __init_or_module apply_alternatives(struct alt_instr *start, { struct alt_instr *entry; int index = 0, applied = 0; - int num_cpus = num_online_cpus(); + int num_cpus = num_present_cpus(); u16 cond_check; cond_check = ALT_COND_ALWAYS | -- 2.34.1