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Staging: rtlwifi: Cleanup crc16_ccitt()

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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>
This commit is contained in:
Madhumitha Prabakaran 2019-04-04 14:51:27 -05:00 committed by Greg Kroah-Hartman
parent d5d682270f
commit 3b706841c2
1 changed files with 7 additions and 7 deletions
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14
drivers/staging/rtlwifi/core.c
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@ -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);