diff mbox series

[v4,02/13] media: media/test_drivers: Replace open-coded parity calculation with parity_odd()

Message ID 20250409154356.423512-3-visitorckw@gmail.com
State New
Headers show
Series Introduce parity_odd() and refactor redundant parity code | expand

Commit Message

Kuan-Wei Chiu April 9, 2025, 3:43 p.m. UTC 
Refactor parity calculations to use the standard parity_odd() helper.
This change eliminates redundant implementations.

Co-developed-by: Yu-Chun Lin <eleanor15x@gmail.com>
Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com>
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
---
 drivers/media/test-drivers/vivid/vivid-vbi-gen.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-gen.c b/drivers/media/test-drivers/vivid/vivid-vbi-gen.c
index 70a4024d461e..5e1b7b1742e4 100644
--- a/drivers/media/test-drivers/vivid/vivid-vbi-gen.c
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-gen.c
@@ -5,6 +5,7 @@ 
  * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
  */
 
+#include <linux/bitops.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/ktime.h>
@@ -165,12 +166,7 @@  static const u8 vivid_cc_sequence2[30] = {
 
 static u8 calc_parity(u8 val)
 {
-	unsigned i;
-	unsigned tot = 0;
-
-	for (i = 0; i < 7; i++)
-		tot += (val & (1 << i)) ? 1 : 0;
-	return val | ((tot & 1) ? 0 : 0x80);
+	return val | (parity_odd(val) ? 0 : 0x80);
 }
 
 static void vivid_vbi_gen_set_time_of_day(u8 *packet)