diff options
Diffstat (limited to 'drivers/media/test-drivers/vivid/vivid-vbi-gen.c')
| -rw-r--r-- | drivers/media/test-drivers/vivid/vivid-vbi-gen.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-gen.c b/drivers/media/test-drivers/vivid/vivid-vbi-gen.c index a141369a7a63..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) @@ -194,7 +190,6 @@ static void vivid_vbi_gen_set_time_of_day(u8 *packet) for (checksum = i = 0; i <= 8; i++) checksum += packet[i] & 0x7f; packet[9] = calc_parity(0x100 - checksum); - checksum = 0; packet[10] = calc_parity(0x07); packet[11] = calc_parity(0x04); if (sys_tz.tz_minuteswest >= 0) |