From 19d795b677bda354644cfb87a196b087fdc2a965 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 19 May 2016 17:09:59 -0700 Subject: [PATCH] kernel/padata.c: hide unused functions A recent cleanup removed some exported functions that were not used anywhere, which in turn exposed the fact that some other functions in the same file are only used in some configurations. We now get a warning about them when CONFIG_HOTPLUG_CPU is disabled: kernel/padata.c:670:12: error: '__padata_remove_cpu' defined but not used [-Werror=unused-function] static int __padata_remove_cpu(struct padata_instance *pinst, int cpu) ^~~~~~~~~~~~~~~~~~~ kernel/padata.c:650:12: error: '__padata_add_cpu' defined but not used [-Werror=unused-function] static int __padata_add_cpu(struct padata_instance *pinst, int cpu) This rearranges the code so the __padata_remove_cpu/__padata_add_cpu functions are within the #ifdef that protects the code that calls them. [akpm@linux-foundation.org: coding-style fixes] Fixes: 4ba6d78c671e ("kernel/padata.c: removed unused code") Signed-off-by: Arnd Bergmann Cc: Richard Cochran Cc: Steffen Klassert Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/padata.c | 74 ++++++++++++++++++++++++------------------------- 1 file changed, 37 insertions(+), 37 deletions(-) diff --git a/kernel/padata.c b/kernel/padata.c index 67ddd4acde9d..993278895ccc 100644 --- a/kernel/padata.c +++ b/kernel/padata.c @@ -647,6 +647,43 @@ out: } EXPORT_SYMBOL(padata_set_cpumask); +/** + * padata_start - start the parallel processing + * + * @pinst: padata instance to start + */ +int padata_start(struct padata_instance *pinst) +{ + int err = 0; + + mutex_lock(&pinst->lock); + + if (pinst->flags & PADATA_INVALID) + err = -EINVAL; + + __padata_start(pinst); + + mutex_unlock(&pinst->lock); + + return err; +} +EXPORT_SYMBOL(padata_start); + +/** + * padata_stop - stop the parallel processing + * + * @pinst: padata instance to stop + */ +void padata_stop(struct padata_instance *pinst) +{ + mutex_lock(&pinst->lock); + __padata_stop(pinst); + mutex_unlock(&pinst->lock); +} +EXPORT_SYMBOL(padata_stop); + +#ifdef CONFIG_HOTPLUG_CPU + static int __padata_add_cpu(struct padata_instance *pinst, int cpu) { struct parallel_data *pd; @@ -726,43 +763,6 @@ int padata_remove_cpu(struct padata_instance *pinst, int cpu, int mask) } EXPORT_SYMBOL(padata_remove_cpu); -/** - * padata_start - start the parallel processing - * - * @pinst: padata instance to start - */ -int padata_start(struct padata_instance *pinst) -{ - int err = 0; - - mutex_lock(&pinst->lock); - - if (pinst->flags & PADATA_INVALID) - err =-EINVAL; - - __padata_start(pinst); - - mutex_unlock(&pinst->lock); - - return err; -} -EXPORT_SYMBOL(padata_start); - -/** - * padata_stop - stop the parallel processing - * - * @pinst: padata instance to stop - */ -void padata_stop(struct padata_instance *pinst) -{ - mutex_lock(&pinst->lock); - __padata_stop(pinst); - mutex_unlock(&pinst->lock); -} -EXPORT_SYMBOL(padata_stop); - -#ifdef CONFIG_HOTPLUG_CPU - static inline int pinst_has_cpu(struct padata_instance *pinst, int cpu) { return cpumask_test_cpu(cpu, pinst->cpumask.pcpu) ||