[PATCH -next] blktrace: Fix some kernel-doc comments

[Yang Li]

Remove warnings found by running scripts/kernel-doc, which is caused by
using 'make W=1'.
kernel/trace/blktrace.c:1884: warning: Function parameter or member 'opf' not described in 'blk_fill_rwbs'
kernel/trace/blktrace.c:1884: warning: Excess function parameter 'op' description in 'blk_fill_rwbs'

Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
Signed-off-by: Yang Li <yang.lee@xxxxxxxxxxxxxxxxx>
---
 kernel/trace/blktrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 150058f5daa9..5632b6159d88 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1873,7 +1873,7 @@ static ssize_t sysfs_blk_trace_attr_store(struct device *dev,
 /**
  * blk_fill_rwbs - Fill the buffer rwbs by mapping op to character string.
  * @rwbs:	buffer to be filled
- * @op:		REQ_OP_XXX for the tracepoint
+ * @opf:	a combination of a request operation and request flags
  *
  * Description:
  *     Maps the REQ_OP_XXX to character and fills the buffer provided by the
-- 
2.20.1.7.g153144c