1 files changed, 0 insertions, 127 deletions
diff --git a/drivers/staging/ks7010/michael_mic.c b/drivers/staging/ks7010/michael_mic.c
deleted file mode 100644
index 3acd79615f98..000000000000
--- a/drivers/staging/ks7010/michael_mic.c
+++ /dev/null
@@ -1,127 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *   Driver for KeyStream wireless LAN
- *
- *   Copyright (C) 2005-2008 KeyStream Corp.
- *   Copyright (C) 2009 Renesas Technology Corp.
- */
-
-#include <asm/unaligned.h>
-#include <linux/bitops.h>
-#include <linux/string.h>
-#include "michael_mic.h"
-
-// Reset the state to the empty message.
-static inline void michael_clear(struct michael_mic *mic)
-{
-	mic->l = mic->k0;
-	mic->r = mic->k1;
-	mic->m_bytes = 0;
-}
-
-static void michael_init(struct michael_mic *mic, u8 *key)
-{
-	// Set the key
-	mic->k0 = get_unaligned_le32(key);
-	mic->k1 = get_unaligned_le32(key + 4);
-
-	//clear();
-	michael_clear(mic);
-}
-
-static inline void michael_block(struct michael_mic *mic)
-{
-	mic->r ^= rol32(mic->l, 17);
-	mic->l += mic->r;
-	mic->r ^= ((mic->l & 0xff00ff00) >> 8) |
-		  ((mic->l & 0x00ff00ff) << 8);
-	mic->l += mic->r;
-	mic->r ^= rol32(mic->l, 3);
-	mic->l += mic->r;
-	mic->r ^= ror32(mic->l, 2);
-	mic->l += mic->r;
-}
-
-static void michael_append(struct michael_mic *mic, u8 *src, int bytes)
-{
-	int addlen;
-
-	if (mic->m_bytes) {
-		addlen = 4 - mic->m_bytes;
-		if (addlen > bytes)
-			addlen = bytes;
-		memcpy(&mic->m[mic->m_bytes], src, addlen);
-		mic->m_bytes += addlen;
-		src += addlen;
-		bytes -= addlen;
-
-		if (mic->m_bytes < 4)
-			return;
-
-		mic->l ^= get_unaligned_le32(mic->m);
-		michael_block(mic);
-		mic->m_bytes = 0;
-	}
-
-	while (bytes >= 4) {
-		mic->l ^= get_unaligned_le32(src);
-		michael_block(mic);
-		src += 4;
-		bytes -= 4;
-	}
-
-	if (bytes > 0) {
-		mic->m_bytes = bytes;
-		memcpy(mic->m, src, bytes);
-	}
-}
-
-static void michael_get_mic(struct michael_mic *mic, u8 *dst)
-{
-	u8 *data = mic->m;
-
-	switch (mic->m_bytes) {
-	case 0:
-		mic->l ^= 0x5a;
-		break;
-	case 1:
-		mic->l ^= data[0] | 0x5a00;
-		break;
-	case 2:
-		mic->l ^= data[0] | (data[1] << 8) | 0x5a0000;
-		break;
-	case 3:
-		mic->l ^= data[0] | (data[1] << 8) | (data[2] << 16) |
-		    0x5a000000;
-		break;
-	}
-	michael_block(mic);
-	michael_block(mic);
-	// The appendByte function has already computed the result.
-	put_unaligned_le32(mic->l, dst);
-	put_unaligned_le32(mic->r, dst + 4);
-
-	// Reset to the empty message.
-	michael_clear(mic);
-}
-
-void michael_mic_function(struct michael_mic *mic, u8 *key,
-			  u8 *data, unsigned int len, u8 priority, u8 *result)
-{
-	u8 pad_data[4] = { priority, 0, 0, 0 };
-	// Compute the MIC value
-	/*
-	 * IEEE802.11i  page 47
-	 * Figure 43g TKIP MIC processing format
-	 * +--+--+--------+--+----+--+--+--+--+--+--+--+--+
-	 * |6 |6 |1       |3 |M   |1 |1 |1 |1 |1 |1 |1 |1 | Octet
-	 * +--+--+--------+--+----+--+--+--+--+--+--+--+--+
-	 * |DA|SA|Priority|0 |Data|M0|M1|M2|M3|M4|M5|M6|M7|
-	 * +--+--+--------+--+----+--+--+--+--+--+--+--+--+
-	 */
-	michael_init(mic, key);
-	michael_append(mic, data, 12);	/* |DA|SA| */
-	michael_append(mic, pad_data, 4);	/* |Priority|0|0|0| */
-	michael_append(mic, data + 12, len - 12);	/* |Data| */
-	michael_get_mic(mic, result);
-}