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Subject[PATCH] lib: flex_proportions.c: Remove some unused functions
Date
Removes some functions that are not used anywhere:
prop_fraction_single() prop_local_destroy_single() prop_local_init_single() fprop_global_destroy()

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
---
include/linux/flex_proportions.h | 6 -----
lib/flex_proportions.c | 46 --------------------------------------
2 files changed, 52 deletions(-)

diff --git a/include/linux/flex_proportions.h b/include/linux/flex_proportions.h
index 0d348e0..27ea6a1 100644
--- a/include/linux/flex_proportions.h
+++ b/include/linux/flex_proportions.h
@@ -34,7 +34,6 @@ struct fprop_global {
};

int fprop_global_init(struct fprop_global *p, gfp_t gfp);
-void fprop_global_destroy(struct fprop_global *p);
bool fprop_new_period(struct fprop_global *p, int periods);

/*
@@ -52,12 +51,7 @@ struct fprop_local_single {
{ .lock = __RAW_SPIN_LOCK_UNLOCKED(name.lock), \
}

-int fprop_local_init_single(struct fprop_local_single *pl);
-void fprop_local_destroy_single(struct fprop_local_single *pl);
void __fprop_inc_single(struct fprop_global *p, struct fprop_local_single *pl);
-void fprop_fraction_single(struct fprop_global *p,
- struct fprop_local_single *pl, unsigned long *numerator,
- unsigned long *denominator);

static inline
void fprop_inc_single(struct fprop_global *p, struct fprop_local_single *pl)
diff --git a/lib/flex_proportions.c b/lib/flex_proportions.c
index 8f25652..575f9e1 100644
--- a/lib/flex_proportions.c
+++ b/lib/flex_proportions.c
@@ -47,11 +47,6 @@ int fprop_global_init(struct fprop_global *p, gfp_t gfp)
return 0;
}

-void fprop_global_destroy(struct fprop_global *p)
-{
- percpu_counter_destroy(&p->events);
-}
-
/*
* Declare @periods new periods. It is upto the caller to make sure period
* transitions cannot happen in parallel.
@@ -90,18 +85,6 @@ bool fprop_new_period(struct fprop_global *p, int periods)
* ---- SINGLE ----
*/

-int fprop_local_init_single(struct fprop_local_single *pl)
-{
- pl->events = 0;
- pl->period = 0;
- raw_spin_lock_init(&pl->lock);
- return 0;
-}
-
-void fprop_local_destroy_single(struct fprop_local_single *pl)
-{
-}
-
static void fprop_reflect_period_single(struct fprop_global *p,
struct fprop_local_single *pl)
{
@@ -134,35 +117,6 @@ void __fprop_inc_single(struct fprop_global *p, struct fprop_local_single *pl)
percpu_counter_add(&p->events, 1);
}

-/* Return fraction of events of type pl */
-void fprop_fraction_single(struct fprop_global *p,
- struct fprop_local_single *pl,
- unsigned long *numerator, unsigned long *denominator)
-{
- unsigned int seq;
- s64 num, den;
-
- do {
- seq = read_seqcount_begin(&p->sequence);
- fprop_reflect_period_single(p, pl);
- num = pl->events;
- den = percpu_counter_read_positive(&p->events);
- } while (read_seqcount_retry(&p->sequence, seq));
-
- /*
- * Make fraction <= 1 and denominator > 0 even in presence of percpu
- * counter errors
- */
- if (den <= num) {
- if (num)
- den = num;
- else
- den = 1;
- }
- *denominator = den;
- *numerator = num;
-}
-
/*
* ---- PERCPU ----
*/
--
1.7.10.4


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