Commit 51f59d68 authored by Fabio M. De Francesco's avatar Fabio M. De Francesco Committed by Greg Kroah-Hartman
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staging: rtl8188eu: Remove no more used functions and variables 



Remove the functions and variables from rtw_security.c that are no more
necessary since the patch that replaces getcrc32() with crc32_le().

Signed-off-by: default avatarFabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20210723192620.10669-3-fmdefrancesco@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent eeacf4cc

drivers/staging/rtl8188eu/core/rtw_security.c

+0 −36
Original line number Diff line number Diff line
@@ -76,42 +76,6 @@ static void arcfour_encrypt(struct arc4context *parc4ctx, u8 *dest, u8 *src, u32 
		dest[i] = src[i] ^ (unsigned char)arcfour_byte(parc4ctx);

}



static int bcrc32initialized;

static u32 crc32_table[256];



static u8 crc32_reverseBit(u8 data)

{

	return (u8)((data << 7) & 0x80) | ((data << 5) & 0x40) | ((data << 3) & 0x20) |

		   ((data << 1) & 0x10) | ((data >> 1) & 0x08) | ((data >> 3) & 0x04) |

		   ((data >> 5) & 0x02) | ((data >> 7) & 0x01);

}



static void crc32_init(void)

{

	int i, j;

	u32 c;

	u8 *p = (u8 *)&c, *p1;

	u8 k;



	if (bcrc32initialized == 1)

		return;



	c = 0x12340000;



	for (i = 0; i < 256; ++i) {

		k = crc32_reverseBit((u8)i);

		for (c = ((u32)k) << 24, j = 8; j > 0; --j)

			c = c & 0x80000000 ? (c << 1) ^ CRC32_POLY : (c << 1);

		p1 = (u8 *)&crc32_table[i];



		p1[0] = crc32_reverseBit(p[3]);

		p1[1] = crc32_reverseBit(p[2]);

		p1[2] = crc32_reverseBit(p[1]);

		p1[3] = crc32_reverseBit(p[0]);

	}

	bcrc32initialized = 1;

}



/* Need to consider the fragment  situation */

void rtw_wep_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)

{