From 3b706841c29f1cf2f8f3484713288aa2c375677b Mon Sep 17 00:00:00 2001
From: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Date: Thu, 4 Apr 2019 14:51:27 -0500
Subject: [PATCH] Staging: rtlwifi: Cleanup crc16_ccitt()
crc16_ccitt() function does "BIT(0) << i" instead of "BIT(i)".
Using !! is slightly shorter than "foo ? 1: 0" and remove unnecessary
parentheses to make the code simple.
Issue suggested by Coccinelle.
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/staging/rtlwifi/core.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/rtlwifi/core.c b/drivers/staging/rtlwifi/core.c
index a9902818ae7ec..2cce65368f92f 100644
--- a/drivers/staging/rtlwifi/core.c
+++ b/drivers/staging/rtlwifi/core.c
@@ -341,25 +341,25 @@ static u16 crc16_ccitt(u8 data, u16 crc)
u16 result;
for (i = 0; i < 8; i++) {
- crc_bit15 = ((crc & BIT(15)) ? 1 : 0);
- data_bit = (data & (BIT(0) << i) ? 1 : 0);
+ crc_bit15 = !!(crc & BIT(15));
+ data_bit = !!(data & BIT(i));
shift_in = crc_bit15 ^ data_bit;
result = crc << 1;
if (shift_in == 0)
- result &= (~BIT(0));
+ result &= ~BIT(0);
else
result |= BIT(0);
- crc_bit11 = ((crc & BIT(11)) ? 1 : 0) ^ shift_in;
+ crc_bit11 = !!(crc & BIT(11)) ^ shift_in;
if (crc_bit11 == 0)
- result &= (~BIT(12));
+ result &= ~BIT(12);
else
result |= BIT(12);
- crc_bit4 = ((crc & BIT(4)) ? 1 : 0) ^ shift_in;
+ crc_bit4 = !!(crc & BIT(4)) ^ shift_in;
if (crc_bit4 == 0)
- result &= (~BIT(5));
+ result &= ~BIT(5);
else
result |= BIT(5);
--
2.30.2