From: Thomas Richter tmricht@linux.vnet.ibm.com
[ Upstream commit 38389ec84e835fa31a59b7dabb18343106a6d0d5 ]
Commit 1887aa07b676 ("s390/topology: add detection of dedicated vs shared CPUs") introduced following compiler error when CONFIG_SCHED_TOPOLOGY is not set.
CC arch/s390/kernel/smp.o ... arch/s390/kernel/smp.c: In function ‘smp_start_secondary’: arch/s390/kernel/smp.c:812:6: error: implicit declaration of function ‘topology_cpu_dedicated’; did you mean ‘topology_cpu_init’?
This patch fixes the compiler error by adding function topology_cpu_dedicated() to return false when this config option is not defined.
Signed-off-by: Thomas Richter tmricht@linux.vnet.ibm.com Reviewed-by: Heiko Carstens heiko.carstens@de.ibm.com Signed-off-by: Martin Schwidefsky schwidefsky@de.ibm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- arch/s390/include/asm/topology.h | 1 + arch/s390/kernel/smp.c | 1 + 2 files changed, 2 insertions(+)
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 55de4eb73604..de0a8b17bcaa 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -51,6 +51,7 @@ const struct cpumask *cpu_coregroup_mask(int cpu); static inline void topology_init_early(void) { } static inline void topology_schedule_update(void) { } static inline int topology_cpu_init(struct cpu *cpu) { return 0; } +static inline int topology_cpu_dedicated(int cpu_nr) { return 0; } static inline void topology_expect_change(void) { }
#endif /* CONFIG_SCHED_TOPOLOGY */ diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 092c4154abd7..7ffaf9fd6d19 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -54,6 +54,7 @@ #include <asm/sigp.h> #include <asm/idle.h> #include <asm/nmi.h> +#include <asm/topology.h> #include "entry.h"
enum {