kmsg: Simplify creating predefined kmsg log dict

Creating predifined _PID, _TID, _COMM keywords kmsg log dict has
unnecessary comple for task comm. Simplify creating predefined
kmsg log dict.

This also fixes to use TASK_COMM_LEN buffer for get_task_comm().

Change-Id: I7547487497e7f3acdab452586f97cf947fc1e6db
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>

diff --git a/kernel/printk_kmsg.c b/kernel/printk_kmsg.c
index 00515b82561fb8a54b271b7b8e3749004266a371..c5097142a76dafa4f1dc5514fc2f308cf7a5d121 100644 (file)
--- a/kernel/printk_kmsg.c
+++ b/kernel/printk_kmsg.c
@@ -874,12 +874,12 @@ void log_buf_release(struct kref *ref)
 static size_t set_kmsg_dict(char *buf)
 {
        size_t len;
+       char task_comm[TASK_COMM_LEN];
 
        len = sprintf(buf, "_PID=%d", task_tgid_nr(current)) + 1;
        len += sprintf(buf + len, "_TID=%d", task_pid_nr(current)) + 1;
-       memcpy(buf + len, "_COMM=", 6);
-       len += 6;
-       get_task_comm(buf + len, current);
+       get_task_comm(task_comm, current);
+       len += snprintf(buf + len, 6 + TASK_COMM_LEN, "_COMM=%s", task_comm);
        while (buf[len] != '\0')
                len++;
        return len;