Use max() to reduce the code and improve its readability.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
---
 drivers/net/wireless/ath/ath9k/dfs.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/dfs.c b/drivers/net/wireless/ath/ath9k/dfs.c
index 2fb73a5e1d51..370346450675 100644
--- a/drivers/net/wireless/ath/ath9k/dfs.c
+++ b/drivers/net/wireless/ath/ath9k/dfs.c
@@ -239,10 +239,7 @@ ath9k_postprocess_radar_event(struct ath_softc *sc,
 		 * Radiated testing, when pulse is on DC, different pri and
 		 * ext durations are reported, so take the larger of the two
 		 */
-		if (ard->pulse_length_ext >= ard->pulse_length_pri)
-			dur = ard->pulse_length_ext;
-		else
-			dur = ard->pulse_length_pri;
+		dur = max(ard->pulse_length_ext, ard->pulse_length_pri);
 		DFS_STAT_INC(sc, dc_phy_errors);
 
 		/* when both are present use stronger one */
-- 
2.34.1