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Date: Thu, 10 Jun 2010 13:10:57 +0200 (CEST)
From: Andi Kleen <andi@...stfloor.org>
To: akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [21/23] kernel/*: Fix unused but set warnings
No real bugs I believe, just some dead code.
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
kernel/debug/kdb/kdb_bp.c | 2 --
kernel/hrtimer.c | 3 +--
kernel/sched_fair.c | 3 +--
kernel/sysctl.c | 5 +----
kernel/trace/ring_buffer.c | 2 --
5 files changed, 3 insertions(+), 12 deletions(-)
Index: linux-2.6.35-rc2-gcc/kernel/sched_fair.c
===================================================================
--- linux-2.6.35-rc2-gcc.orig/kernel/sched_fair.c
+++ linux-2.6.35-rc2-gcc/kernel/sched_fair.c
@@ -1311,7 +1311,7 @@ static struct sched_group *
find_idlest_group(struct sched_domain *sd, struct task_struct *p,
int this_cpu, int load_idx)
{
- struct sched_group *idlest = NULL, *this = NULL, *group = sd->groups;
+ struct sched_group *idlest = NULL, *group = sd->groups;
unsigned long min_load = ULONG_MAX, this_load = 0;
int imbalance = 100 + (sd->imbalance_pct-100)/2;
@@ -1346,7 +1346,6 @@ find_idlest_group(struct sched_domain *s
if (local_group) {
this_load = avg_load;
- this = group;
} else if (avg_load < min_load) {
min_load = avg_load;
idlest = group;
Index: linux-2.6.35-rc2-gcc/kernel/sysctl.c
===================================================================
--- linux-2.6.35-rc2-gcc.orig/kernel/sysctl.c
+++ linux-2.6.35-rc2-gcc/kernel/sysctl.c
@@ -1711,10 +1711,7 @@ static __init int sysctl_init(void)
{
sysctl_set_parent(NULL, root_table);
#ifdef CONFIG_SYSCTL_SYSCALL_CHECK
- {
- int err;
- err = sysctl_check_table(current->nsproxy, root_table);
- }
+ sysctl_check_table(current->nsproxy, root_table);
#endif
return 0;
}
Index: linux-2.6.35-rc2-gcc/kernel/hrtimer.c
===================================================================
--- linux-2.6.35-rc2-gcc.orig/kernel/hrtimer.c
+++ linux-2.6.35-rc2-gcc/kernel/hrtimer.c
@@ -1096,11 +1096,10 @@ EXPORT_SYMBOL_GPL(hrtimer_cancel);
*/
ktime_t hrtimer_get_remaining(const struct hrtimer *timer)
{
- struct hrtimer_clock_base *base;
unsigned long flags;
ktime_t rem;
- base = lock_hrtimer_base(timer, &flags);
+ lock_hrtimer_base(timer, &flags);
rem = hrtimer_expires_remaining(timer);
unlock_hrtimer_base(timer, &flags);
Index: linux-2.6.35-rc2-gcc/kernel/debug/kdb/kdb_bp.c
===================================================================
--- linux-2.6.35-rc2-gcc.orig/kernel/debug/kdb/kdb_bp.c
+++ linux-2.6.35-rc2-gcc/kernel/debug/kdb/kdb_bp.c
@@ -274,7 +274,6 @@ static int kdb_bp(int argc, const char *
int i, bpno;
kdb_bp_t *bp, *bp_check;
int diag;
- int free;
char *symname = NULL;
long offset = 0ul;
int nextarg;
@@ -305,7 +304,6 @@ static int kdb_bp(int argc, const char *
/*
* Find an empty bp structure to allocate
*/
- free = KDB_MAXBPT;
for (bpno = 0, bp = kdb_breakpoints; bpno < KDB_MAXBPT; bpno++, bp++) {
if (bp->bp_free)
break;
Index: linux-2.6.35-rc2-gcc/kernel/trace/ring_buffer.c
===================================================================
--- linux-2.6.35-rc2-gcc.orig/kernel/trace/ring_buffer.c
+++ linux-2.6.35-rc2-gcc/kernel/trace/ring_buffer.c
@@ -3007,13 +3007,11 @@ static void rb_advance_reader(struct rin
static void rb_advance_iter(struct ring_buffer_iter *iter)
{
- struct ring_buffer *buffer;
struct ring_buffer_per_cpu *cpu_buffer;
struct ring_buffer_event *event;
unsigned length;
cpu_buffer = iter->cpu_buffer;
- buffer = cpu_buffer->buffer;
/*
* Check if we are at the end of the buffer.
--
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