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authorIngo Molnar <mingo@kernel.org>2024-02-26 12:07:31 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-06-16 13:41:42 +0200
commit6d6fe13cca9efa1dafb745353ec1a50aca33f9de (patch)
treea6fc5d68a03e2f455d0c88239946014c85ce9a37
parentb09b556e48968317887a11243a5331a7bc00ece5 (diff)
smp: Provide 'setup_max_cpus' definition on UP too
commit 3c2f8859ae1ce53f2a89c8e4ca4092101afbff67 upstream. This was already defined locally by init/main.c, but let's make it generic, as arch/x86/kernel/cpu/topology.c is going to make use of it to have more uniform code. Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--include/linux/smp.h2
-rw-r--r--init/main.c1
2 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h
index a80ab58ae3f1..5b977f20c139 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -211,6 +211,8 @@ smp_call_function_any(const struct cpumask *mask, smp_call_func_t func,
static inline void kick_all_cpus_sync(void) { }
static inline void wake_up_all_idle_cpus(void) { }
+#define setup_max_cpus 0
+
#ifdef CONFIG_UP_LATE_INIT
extern void __init up_late_init(void);
static inline void smp_init(void) { up_late_init(); }
diff --git a/init/main.c b/init/main.c
index 2c339793511b..e46aa00b3c99 100644
--- a/init/main.c
+++ b/init/main.c
@@ -607,7 +607,6 @@ static int __init rdinit_setup(char *str)
__setup("rdinit=", rdinit_setup);
#ifndef CONFIG_SMP
-static const unsigned int setup_max_cpus = NR_CPUS;
static inline void setup_nr_cpu_ids(void) { }
static inline void smp_prepare_cpus(unsigned int maxcpus) { }
#endif