[PATCH v3 03/16] media: media/test_drivers: Replace open-coded parity calculation with parity8()
Kuan-Wei Chiu <[email protected]>
| Newsgroups | dev.linux.lists.brcm80211,org.freedesktop.lists.dri-devel,org.infradead.lists.linux-mtd,org.kernel.vger.bpf,org.kernel.vger.linux-input,org.kernel.vger.linux-kernel,org.kernel.vger.linux-media,org.kernel.vger.linux-serial,org.kernel.vger.linux-wireless,org.kernel.vger.netdev |
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| Message-ID | <[email protected]> |
Refactor parity calculations to use the standard parity8() helper. This change eliminates redundant implementations and improves code efficiency. Co-developed-by: Yu-Chun Lin <[email protected]> Signed-off-by: Yu-Chun Lin <[email protected]> Signed-off-by: Kuan-Wei Chiu <[email protected]> --- drivers/media/test-drivers/vivid/vivid-vbi-gen.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-gen.c b/drivers/media/test-drivers/vivid/vivid-vbi-gen.c index 70a4024d461e..e0f4151bda18 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 | (parity8(val) ? 0 : 0x80); } static void vivid_vbi_gen_set_time_of_day(u8 *packet) -- 2.34.1