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media: media/test_drivers: Replace open-coded parity calculation with parity8()

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Refactor parity calculations to use the standard parity8() 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>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Kuan-Wei Chiu
2025-05-15 16:07:48 +08:00
committed by Hans Verkuil
parent 57b5a302b5
commit 47e0452b40
1 changed files with 2 additions and 6 deletions
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8
drivers/media/test-drivers/vivid/vivid-vbi-gen.c
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@@ -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 | (parity8(val) ? 0 : 0x80);
}
static void vivid_vbi_gen_set_time_of_day(u8 *packet)