staging: vt6655: dead code remove michael.c/h (e813580c) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/staging/vt6655/Makefile

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		@@ -17,7 +17,6 @@ vt6655_stage-y += device_main.o \
		tether.o \
		tcrc.o \
		key.o \
		michael.o \
		rf.o \
		vntwifi.o

drivers/staging/vt6655/michael.c

deleted100644 → 0

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		/*
		* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
		* All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation; either version 2 of the License, or
		* (at your option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License along
		* with this program; if not, write to the Free Software Foundation, Inc.,
		* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
		*
		*
		* File: michael.cpp
		*
		* Purpose: The implementation of LIST data structure.
		*
		* Author: Kyle Hsu
		*
		* Date: Sep 4, 2002
		*
		* Functions:
		* s_dwGetUINT32 - Convert from unsigned char [] to unsigned long in a portable way
		* s_vPutUINT32 - Convert from unsigned long to unsigned char [] in a portable way
		* s_vClear - Reset the state to the empty message.
		* s_vSetKey - Set the key.
		* MIC_vInit - Set the key.
		* s_vAppendByte - Append the byte to our word-sized buffer.
		* MIC_vAppend - call s_vAppendByte.
		* MIC_vGetMIC - Append the minimum padding and call s_vAppendByte.
		*
		* Revision History:
		*
		*/

		#include "tmacro.h"
		#include "michael.h"

		/--------------------- Static Definitions -------------------------/

		/--------------------- Static Variables --------------------------/

		/--------------------- Static Functions --------------------------/

		static void s_vClear(void); // Clear the internal message,
		// resets the object to the state just after construction.
		static void s_vSetKey(u32 dwK0, u32 dwK1);
		static void s_vAppendByte(unsigned char b); // Add a single byte to the internal message

		/--------------------- Export Variables --------------------------/
		static u32 L, R; /* Current state */

		static u32 K0, K1; /* Key */
		static u32 M; /* Message accumulator (single word) */
		static unsigned int nBytesInM; // # bytes in M

		/--------------------- Export Functions --------------------------/

		static void s_vClear(void)
		{
		// Reset the state to the empty message.
		L = K0;
		R = K1;
		nBytesInM = 0;
		M = 0;
		}

		static void s_vSetKey(u32 dwK0, u32 dwK1)
		{
		// Set the key
		K0 = dwK0;
		K1 = dwK1;
		// and reset the message
		s_vClear();
		}

		static void s_vAppendByte(unsigned char b)
		{
		// Append the byte to our word-sized buffer
		M \|= b << (8*nBytesInM);
		nBytesInM++;
		// Process the word if it is full.
		if (nBytesInM >= 4) {
		L ^= M;
		R ^= ROL32(L, 17);
		L += R;
		R ^= ((L & 0xff00ff00) >> 8) \| ((L & 0x00ff00ff) << 8);
		L += R;
		R ^= ROL32(L, 3);
		L += R;
		R ^= ROR32(L, 2);
		L += R;
		// Clear the buffer
		M = 0;
		nBytesInM = 0;
		}
		}

		void MIC_vInit(u32 dwK0, u32 dwK1)
		{
		// Set the key
		s_vSetKey(dwK0, dwK1);
		}

		void MIC_vUnInit(void)
		{
		// Wipe the key material
		K0 = 0;
		K1 = 0;

		// And the other fields as well.
		//Note that this sets (L,R) to (K0,K1) which is just fine.
		s_vClear();
		}

		void MIC_vAppend(unsigned char *src, unsigned int nBytes)
		{
		// This is simple
		while (nBytes > 0) {
		s_vAppendByte(*src++);
		nBytes--;
		}
		}

		void MIC_vGetMIC(u32 pdwL, u32 pdwR)
		{
		// Append the minimum padding
		s_vAppendByte(0x5a);
		s_vAppendByte(0);
		s_vAppendByte(0);
		s_vAppendByte(0);
		s_vAppendByte(0);
		// and then zeroes until the length is a multiple of 4
		while (nBytesInM != 0)
		s_vAppendByte(0);

		// The s_vAppendByte function has already computed the result.
		*pdwL = L;
		*pdwR = R;
		// Reset to the empty message.
		s_vClear();
		}

drivers/staging/vt6655/michael.h

deleted100644 → 0

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Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
		* All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation; either version 2 of the License, or
		* (at your option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License along
		* with this program; if not, write to the Free Software Foundation, Inc.,
		* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
		*
		*
		* File: Michael.h
		*
		* Purpose: Reference implementation for Michael
		* written by Niels Ferguson
		*
		* Author: Kyle Hsu
		*
		* Date: Jan 2, 2003
		*
		*/

		#ifndef __MICHAEL_H__
		#define __MICHAEL_H__

		#include <linux/types.h>

		void MIC_vInit(u32 dwK0, u32 dwK1);

		void MIC_vUnInit(void);

		/* Append bytes to the message to be MICed */
		void MIC_vAppend(unsigned char *src, unsigned int nBytes);

		/* Get the MIC result. Destination should accept 8 bytes of result. */
		/* This also resets the message to empty. */
		void MIC_vGetMIC(u32 pdwL, u32 pdwR);

		/* Rotation functions on 32 bit values */
		#define ROL32(A, n) \
		(((A) << (n)) \| (((A)>>(32-(n))) & ((1UL << (n)) - 1)))
		#define ROR32(A, n) ROL32((A), 32-(n))

		#endif /__MICHAEL_H__ /

drivers/staging/vt6655/rxtx.c

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		@@ -55,7 +55,6 @@
		#include "bssdb.h"
		#include "mac.h"
		#include "baseband.h"
		#include "michael.h"
		#include "tcrc.h"
		#include "wctl.h"
		#include "rf.h"