summaryrefslogtreecommitdiffstats
path: root/kernel/kprobes.c
diff options
context:
space:
mode:
authorMasami Hiramatsu <mhiramat@kernel.org>2021-09-14 23:40:16 +0900
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-09-30 21:24:06 -0400
commit29e8077ae2beea6a85ad2d0bae9c550bd5d05ed9 (patch)
treefb0b48a8735ddeb05cae4a1e305a2d86314efc22 /kernel/kprobes.c
parentc42421e205fc2570a4d019184ea7d6c382c93f4c (diff)
downloadlinux-stable-29e8077ae2beea6a85ad2d0bae9c550bd5d05ed9.tar.gz
linux-stable-29e8077ae2beea6a85ad2d0bae9c550bd5d05ed9.tar.bz2
linux-stable-29e8077ae2beea6a85ad2d0bae9c550bd5d05ed9.zip
kprobes: Use bool type for functions which returns boolean value
Use the 'bool' type instead of 'int' for the functions which returns a boolean value, because this makes clear that those functions don't return any error code. Link: https://lkml.kernel.org/r/163163041649.489837.17311187321419747536.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/kprobes.c')
-rw-r--r--kernel/kprobes.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index b6f1dcf4bff3..8021bccb7770 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -198,8 +198,8 @@ out:
return slot;
}
-/* Return 1 if all garbages are collected, otherwise 0. */
-static int collect_one_slot(struct kprobe_insn_page *kip, int idx)
+/* Return true if all garbages are collected, otherwise false. */
+static bool collect_one_slot(struct kprobe_insn_page *kip, int idx)
{
kip->slot_used[idx] = SLOT_CLEAN;
kip->nused--;
@@ -223,9 +223,9 @@ static int collect_one_slot(struct kprobe_insn_page *kip, int idx)
kip->cache->free(kip->insns);
kfree(kip);
}
- return 1;
+ return true;
}
- return 0;
+ return false;
}
static int collect_garbage_slots(struct kprobe_insn_cache *c)
@@ -389,13 +389,13 @@ NOKPROBE_SYMBOL(get_kprobe);
static int aggr_pre_handler(struct kprobe *p, struct pt_regs *regs);
/* Return true if 'p' is an aggregator */
-static inline int kprobe_aggrprobe(struct kprobe *p)
+static inline bool kprobe_aggrprobe(struct kprobe *p)
{
return p->pre_handler == aggr_pre_handler;
}
/* Return true if 'p' is unused */
-static inline int kprobe_unused(struct kprobe *p)
+static inline bool kprobe_unused(struct kprobe *p)
{
return kprobe_aggrprobe(p) && kprobe_disabled(p) &&
list_empty(&p->list);
@@ -455,7 +455,7 @@ static inline int kprobe_optready(struct kprobe *p)
}
/* Return true if the kprobe is disarmed. Note: p must be on hash list */
-static inline int kprobe_disarmed(struct kprobe *p)
+static inline bool kprobe_disarmed(struct kprobe *p)
{
struct optimized_kprobe *op;
@@ -469,16 +469,16 @@ static inline int kprobe_disarmed(struct kprobe *p)
}
/* Return true if the probe is queued on (un)optimizing lists */
-static int kprobe_queued(struct kprobe *p)
+static bool kprobe_queued(struct kprobe *p)
{
struct optimized_kprobe *op;
if (kprobe_aggrprobe(p)) {
op = container_of(p, struct optimized_kprobe, kp);
if (!list_empty(&op->list))
- return 1;
+ return true;
}
- return 0;
+ return false;
}
/*
@@ -1678,7 +1678,7 @@ out:
EXPORT_SYMBOL_GPL(register_kprobe);
/* Check if all probes on the 'ap' are disabled. */
-static int aggr_kprobe_disabled(struct kprobe *ap)
+static bool aggr_kprobe_disabled(struct kprobe *ap)
{
struct kprobe *kp;
@@ -1690,9 +1690,9 @@ static int aggr_kprobe_disabled(struct kprobe *ap)
* Since there is an active probe on the list,
* we can't disable this 'ap'.
*/
- return 0;
+ return false;
- return 1;
+ return true;
}
static struct kprobe *__disable_kprobe(struct kprobe *p)