[PATCH 2/3] of: early exit of_match_node if no better matches are possible

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

The maximum score that can be returned by of_device_is_compatible is
OF_DEVICE_COMPATIBLE_MAX_SCORE. Once that score is returned, there is no
point in continuing with the string comparisons, so just early exit.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 drivers/of/base.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 8a42fcee1d40..b22959dabebf 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -717,6 +717,9 @@ const struct of_device_id *of_match_node(const struct of_device_id *matches,
 		if (score > best_score) {
 			best_match = matches;
 			best_score = score;
+
+			if (score == OF_DEVICE_COMPATIBLE_MAX_SCORE)
+				break;
 		}
 	}
 
-- 
2.39.2