linux-kernel - [PATCH 2/2] staging: r8188eu: Remove no more used functions and variables

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Message-Id: <20210730103716.27210-3-fmdefrancesco@gmail.com>
Date:   Fri, 30 Jul 2021 12:37:16 +0200
From:   "Fabio M. De Francesco" <fmdefrancesco@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Larry Finger <Larry.Finger@...inger.net>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Cc:     "Fabio M. De Francesco" <fmdefrancesco@...il.com>
Subject: [PATCH 2/2] staging: r8188eu: 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: Fabio M. De Francesco <fmdefrancesco@...il.com>
---
 drivers/staging/r8188eu/core/rtw_security.c | 37 ---------------------
 1 file changed, 37 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_security.c b/drivers/staging/r8188eu/core/rtw_security.c
index 9625beea4b3c..136ba1e61dca 100644
--- a/drivers/staging/r8188eu/core/rtw_security.c
+++ b/drivers/staging/r8188eu/core/rtw_security.c
@@ -74,43 +74,6 @@ static void arcfour_encrypt(struct arc4context *parc4ctx, u8 *dest, u8 *src, u32
 
 }
 
-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)
-{
-	if (bcrc32initialized == 1) {
-		return;
-	} else {
-		int i, j;
-		u32 c;
-		u8 *p = (u8 *)&c, *p1;
-		u8 k;
-
-		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
 */
-- 
2.32.0