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serial: max3100: 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>
Link: https://lore.kernel.org/r/20250515081311.775559-1-visitorckw@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kuan-Wei Chiu 2025-05-15 16:13:11 +08:00 committed by Greg Kroah-Hartman
parent 857eec4678
commit 063a896456
1 changed files with 2 additions and 1 deletions
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3
drivers/tty/serial/max3100.c
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@ -16,6 +16,7 @@
/* 4 MAX3100s should be enough for everyone */
#define MAX_MAX3100 4
#include <linux/bitops.h>
#include <linux/container_of.h>
#include <linux/delay.h>
#include <linux/device.h>
@ -133,7 +134,7 @@ static int max3100_do_parity(struct max3100_port *s, u16 c)
else
c &= 0xff;
parity = parity ^ (hweight8(c) & 1);
parity = parity ^ parity8(c);
return parity;
}