[PATCH linux-next] rcu/trace: use strscpy() to instead of strncpy()

yang.yang29
2023-01-05T12:18:23Z

From: Xu Panda <xu.panda@zte.com.cn>

The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.

Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
---
include/trace/events/rcu.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 90b2fb0292cb..2703992edecd 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -776,9 +776,8 @@ TRACE_EVENT_RCU(rcu_torture_read,
),

TP_fast_assign(
- strncpy(__entry->rcutorturename, rcutorturename,
+ strscpy(__entry->rcutorturename, rcutorturename,
RCUTORTURENAME_LEN);
- __entry->rcutorturename[RCUTORTURENAME_LEN - 1] = 0;
__entry->rhp = rhp;
__entry->secs = secs;
__entry->c_old = c_old;
--
2.15.2