rcu: Use pr_alert/pr_cont for printing logs

User pr_alert/pr_cont for printing the logs from rcutorture module directly
instead of writing it to a buffer and then printing it. This allows us from not
having to allocate such buffers. Also remove a resulting empty function.

I tested this using the parse-torture.sh script as follows:

$ dmesg | grep torture > log.txt
$ bash parse-torture.sh log.txt test
$

There were no warnings which means that parsing went fine.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

1 files changed, 7 insertions, 9 deletions

diff --git a/kernel/torture.c b/kernel/torture.c
index d600af21f022..ede8b25ec1ae 100644
--- a/kernel/torture.c
+++ b/kernel/torture.c
@@ -211,18 +211,16 @@ EXPORT_SYMBOL_GPL(torture_onoff_cleanup);
 /*
  * Print online/offline testing statistics.
  */
-char *torture_onoff_stats(char *page)
+void torture_onoff_stats(void)
 {
 #ifdef CONFIG_HOTPLUG_CPU
-        page += sprintf(page,
-                       "onoff: %ld/%ld:%ld/%ld %d,%d:%d,%d %lu:%lu (HZ=%d) ",
-                       n_online_successes, n_online_attempts,
-                       n_offline_successes, n_offline_attempts,
-                       min_online, max_online,
-                       min_offline, max_offline,
-                       sum_online, sum_offline, HZ);
+        pr_cont("onoff: %ld/%ld:%ld/%ld %d,%d:%d,%d %lu:%lu (HZ=%d) ",
+                n_online_successes, n_online_attempts,
+                n_offline_successes, n_offline_attempts,
+                min_online, max_online,
+                min_offline, max_offline,
+                sum_online, sum_offline, HZ);
 #endif /* #ifdef CONFIG_HOTPLUG_CPU */
-        return page;
 }
 EXPORT_SYMBOL_GPL(torture_onoff_stats);