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Subject[PATCH 15/31] media: use parity8 in vivid-vbi-gen.c
From
Date
From: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>

Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
---
drivers/media/platform/vivid/vivid-vbi-gen.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/vivid/vivid-vbi-gen.c b/drivers/media/platform/vivid/vivid-vbi-gen.c
index a2159de..d5ba0fc 100644
--- a/drivers/media/platform/vivid/vivid-vbi-gen.c
+++ b/drivers/media/platform/vivid/vivid-vbi-gen.c
@@ -175,14 +175,9 @@ static const u8 vivid_cc_sequence2[30] = {
0x14, 0x2f, /* End of Caption */
};

-static u8 calc_parity(u8 val)
+static inline 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 (!parity8(val) << 7) | val;
}

static void vivid_vbi_gen_set_time_of_day(u8 *packet)
--
2.5.5
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