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Subject[PATCH v4 1/7] kcov: cleanup debug messages
From
Previous commit left a lot of excessive debug messages, clean them up.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
kernel/kcov.c | 22 ++--------------------
1 file changed, 2 insertions(+), 20 deletions(-)

diff --git a/kernel/kcov.c b/kernel/kcov.c
index f50354202dbe..f6bd119c9419 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -98,6 +98,7 @@ static struct kcov_remote *kcov_remote_find(u64 handle)
return NULL;
}

+/* Must be called with kcov_remote_lock locked. */
static struct kcov_remote *kcov_remote_add(struct kcov *kcov, u64 handle)
{
struct kcov_remote *remote;
@@ -119,16 +120,13 @@ static struct kcov_remote_area *kcov_remote_area_get(unsigned int size)
struct kcov_remote_area *area;
struct list_head *pos;

- kcov_debug("size = %u\n", size);
list_for_each(pos, &kcov_remote_areas) {
area = list_entry(pos, struct kcov_remote_area, list);
if (area->size == size) {
list_del(&area->list);
- kcov_debug("rv = %px\n", area);
return area;
}
}
- kcov_debug("rv = NULL\n");
return NULL;
}

@@ -136,7 +134,6 @@ static struct kcov_remote_area *kcov_remote_area_get(unsigned int size)
static void kcov_remote_area_put(struct kcov_remote_area *area,
unsigned int size)
{
- kcov_debug("area = %px, size = %u\n", area, size);
INIT_LIST_HEAD(&area->list);
area->size = size;
list_add(&area->list, &kcov_remote_areas);
@@ -366,7 +363,6 @@ static void kcov_remote_reset(struct kcov *kcov)
hash_for_each_safe(kcov_remote_map, bkt, tmp, remote, hnode) {
if (remote->kcov != kcov)
continue;
- kcov_debug("removing handle %llx\n", remote->handle);
hash_del(&remote->hnode);
kfree(remote);
}
@@ -553,7 +549,6 @@ static int kcov_ioctl_locked(struct kcov *kcov, unsigned int cmd,

switch (cmd) {
case KCOV_INIT_TRACE:
- kcov_debug("KCOV_INIT_TRACE\n");
/*
* Enable kcov in trace mode and setup buffer size.
* Must happen before anything else.
@@ -572,7 +567,6 @@ static int kcov_ioctl_locked(struct kcov *kcov, unsigned int cmd,
kcov->mode = KCOV_MODE_INIT;
return 0;
case KCOV_ENABLE:
- kcov_debug("KCOV_ENABLE\n");
/*
* Enable coverage for the current task.
* At this point user must have been enabled trace mode,
@@ -598,7 +592,6 @@ static int kcov_ioctl_locked(struct kcov *kcov, unsigned int cmd,
kcov_get(kcov);
return 0;
case KCOV_DISABLE:
- kcov_debug("KCOV_DISABLE\n");
/* Disable coverage for the current task. */
unused = arg;
if (unused != 0 || current->kcov != kcov)
@@ -610,7 +603,6 @@ static int kcov_ioctl_locked(struct kcov *kcov, unsigned int cmd,
kcov_put(kcov);
return 0;
case KCOV_REMOTE_ENABLE:
- kcov_debug("KCOV_REMOTE_ENABLE\n");
if (kcov->mode != KCOV_MODE_INIT || !kcov->area)
return -EINVAL;
t = current;
@@ -629,7 +621,6 @@ static int kcov_ioctl_locked(struct kcov *kcov, unsigned int cmd,
kcov->remote_size = remote_arg->area_size;
spin_lock(&kcov_remote_lock);
for (i = 0; i < remote_arg->num_handles; i++) {
- kcov_debug("handle %llx\n", remote_arg->handles[i]);
if (!kcov_check_handle(remote_arg->handles[i],
false, true, false)) {
spin_unlock(&kcov_remote_lock);
@@ -644,8 +635,6 @@ static int kcov_ioctl_locked(struct kcov *kcov, unsigned int cmd,
}
}
if (remote_arg->common_handle) {
- kcov_debug("common handle %llx\n",
- remote_arg->common_handle);
if (!kcov_check_handle(remote_arg->common_handle,
true, false, false)) {
spin_unlock(&kcov_remote_lock);
@@ -782,7 +771,6 @@ void kcov_remote_start(u64 handle)
spin_lock(&kcov_remote_lock);
remote = kcov_remote_find(handle);
if (!remote) {
- kcov_debug("no remote found");
spin_unlock(&kcov_remote_lock);
return;
}
@@ -810,8 +798,6 @@ void kcov_remote_start(u64 handle)
/* Reset coverage size. */
*(u64 *)area = 0;

- kcov_debug("area = %px, size = %u", area, size);
-
kcov_start(t, size, area, mode, sequence);

}
@@ -881,10 +867,8 @@ void kcov_remote_stop(void)
unsigned int size = t->kcov_size;
int sequence = t->kcov_sequence;

- if (!kcov) {
- kcov_debug("no kcov found\n");
+ if (!kcov)
return;
- }

kcov_stop(t);
t->kcov = NULL;
@@ -894,8 +878,6 @@ void kcov_remote_stop(void)
* KCOV_DISABLE could have been called between kcov_remote_start()
* and kcov_remote_stop(), hence the check.
*/
- kcov_debug("move if: %d == %d && %d\n",
- sequence, kcov->sequence, (int)kcov->remote);
if (sequence == kcov->sequence && kcov->remote)
kcov_move_area(kcov->mode, kcov->area, kcov->size, area);
spin_unlock(&kcov->lock);
--
2.26.0.rc2.310.g2932bb562d-goog
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