path: root/include
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authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-08 10:39:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-08 10:39:56 -0700
commite0e86b111bca6bbf746c03ec5cf3e6a61fa3f8e9 (patch)
tree4a3c4e8dbfda3a6e0886c54a6ea3927dbec89e41 /include
parent568521d058aaab18f01ac39d7a6ef00b75e5cc79 (diff)
parentcaa759323c73676b3e48c8d9c86093c88b4aba97 (diff)
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP/hotplug updates from Thomas Gleixner: "A small set of updates for SMP and CPU hotplug: - Abort disabling secondary CPUs in the freezer when a wakeup is pending instead of evaluating it only after all CPUs have been offlined. - Remove the shared annotation for the strict per CPU cfd_data in the smp function call core code. - Remove the return values of smp_call_function() and on_each_cpu() as they are unconditionally 0. Fixup the few callers which actually bothered to check the return value" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: smp: Remove smp_call_function() and on_each_cpu() return values smp: Do not mark call_function_data as shared cpu/hotplug: Abort disabling secondary CPUs if wakeup is pending cpu/hotplug: Fix notify_cpu_starting() reference in bringup_wait_for_ap()
Diffstat (limited to 'include')
1 files changed, 3 insertions, 4 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h
index a56f08ff3097..bb8b451ab01f 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -35,7 +35,7 @@ int smp_call_function_single(int cpuid, smp_call_func_t func, void *info,
* Call a function on all processors
-int on_each_cpu(smp_call_func_t func, void *info, int wait);
+void on_each_cpu(smp_call_func_t func, void *info, int wait);
* Call a function on processors specified by mask, which might include
@@ -101,7 +101,7 @@ extern void smp_cpus_done(unsigned int max_cpus);
* Call a function on all other processors
-int smp_call_function(smp_call_func_t func, void *info, int wait);
+void smp_call_function(smp_call_func_t func, void *info, int wait);
void smp_call_function_many(const struct cpumask *mask,
smp_call_func_t func, void *info, bool wait);
@@ -144,9 +144,8 @@ static inline void smp_send_stop(void) { }
* These macros fold the SMP functionality into a single CPU system
#define raw_smp_processor_id() 0
-static inline int up_smp_call_function(smp_call_func_t func, void *info)
+static inline void up_smp_call_function(smp_call_func_t func, void *info)
- return 0;
#define smp_call_function(func, info, wait) \
(up_smp_call_function(func, info))