From 848785df48835eefebe0c4eb5da7690690b0a8b7 Mon Sep 17 00:00:00 2001 From: Valentin Schneider Date: Tue, 8 Sep 2020 19:49:56 +0100 Subject: sched/topology: Move sd_flag_debug out of #ifdef CONFIG_SYSCTL The last sd_flag_debug shuffle inadvertently moved its definition within an #ifdef CONFIG_SYSCTL region. While CONFIG_SYSCTL is indeed required to produce the sched domain ctl interface (which uses sd_flag_debug to output flag names), it isn't required to run any assertion on the sched_domain hierarchy itself. Move the definition of sd_flag_debug to a CONFIG_SCHED_DEBUG region of topology.c. Now at long last we have: - sd_flag_debug declared in include/linux/sched/topology.h iff CONFIG_SCHED_DEBUG=y - sd_flag_debug defined in kernel/sched/topology.c, conditioned by: - CONFIG_SCHED_DEBUG, with an explicit #ifdef block - CONFIG_SMP, as a requirement to compile topology.c With this change, all symbols pertaining to SD flag metadata (with the exception of __SD_FLAG_CNT) are now defined exclusively within topology.c Fixes: 8fca9494d4b4 ("sched/topology: Move sd_flag_debug out of linux/sched/topology.h") Reported-by: Randy Dunlap Signed-off-by: Valentin Schneider Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/r/20200908184956.23369-1-valentin.schneider@arm.com --- kernel/sched/topology.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'kernel/sched/topology.c') diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index aa1676abc544..249bec7b0a4c 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -25,6 +25,12 @@ static inline bool sched_debug(void) return sched_debug_enabled; } +#define SD_FLAG(_name, mflags) [__##_name] = { .meta_flags = mflags, .name = #_name }, +const struct sd_flag_debug sd_flag_debug[] = { +#include +}; +#undef SD_FLAG + static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level, struct cpumask *groupmask) { -- cgit v1.2.3