[PATCH 1/2] riscv: ftrace: Fix the comments about the number of ftrace instruction

[Li Huafei]

When DYNAMIC_FTRACE is enabled, we put four instructions in front of the
function for ftrace use, not five.

Signed-off-by: Li Huafei <lihuafei1 at huawei.com>
---
 arch/riscv/kernel/ftrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/kernel/ftrace.c b/arch/riscv/kernel/ftrace.c
index 4716f4cdc038..63f457650fa4 100644
--- a/arch/riscv/kernel/ftrace.c
+++ b/arch/riscv/kernel/ftrace.c
@@ -73,7 +73,7 @@ static int __ftrace_modify_call(unsigned long hook_pos, unsigned long target,
 }
 
 /*
- * Put 5 instructions with 16 bytes at the front of function within
+ * Put 4 instructions with 16 bytes at the front of function within
  * patchable function entry nops' area.
  *
  * 0: REG_S  ra, -SZREG(sp)
-- 
2.17.1