staging: brcm80211: Remove unnecessary bitfuncs.h

This header file is no longer included anywhere.
Signed-off-by: Henry Ptasinski <henryp@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/include/bitfuncs.h

-/*
- * Copyright (c) 2010 Broadcom Corporation
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef _BITFUNCS_H
-#define _BITFUNCS_H
-
-#include <typedefs.h>
-
-/* local prototypes */
-static inline uint32 find_msbit(uint32 x);
-
-/*
- * find_msbit: returns index of most significant set bit in x, with index
- *   range defined as 0-31.  NOTE: returns zero if input is zero.
- */
-
-#if defined(USE_PENTIUM_BSR) && defined(__GNUC__)
-
-/*
- * Implementation for Pentium processors and gcc.  Note that this
- * instruction is actually very slow on some processors (e.g., family 5,
- * model 2, stepping 12, "Pentium 75 - 200"), so we use the generic
- * implementation instead.
- */
-static inline uint32 find_msbit(uint32 x)
-{
-	uint msbit;
- __asm__("bsrl %1,%0" : "=r"(msbit)
- :		"r"(x));
-	return msbit;
-}
-
-#else				/* !USE_PENTIUM_BSR || !__GNUC__ */
-
-/*
- * Generic Implementation
- */
-
-#define DB_POW_MASK16	0xffff0000
-#define DB_POW_MASK8	0x0000ff00
-#define DB_POW_MASK4	0x000000f0
-#define DB_POW_MASK2	0x0000000c
-#define DB_POW_MASK1	0x00000002
-
-static inline uint32 find_msbit(uint32 x)
-{
-	uint32 temp_x = x;
-	uint msbit = 0;
-	if (temp_x & DB_POW_MASK16) {
-		temp_x >>= 16;
-		msbit = 16;
-	}
-	if (temp_x & DB_POW_MASK8) {
-		temp_x >>= 8;
-		msbit += 8;
-	}
-	if (temp_x & DB_POW_MASK4) {
-		temp_x >>= 4;
-		msbit += 4;
-	}
-	if (temp_x & DB_POW_MASK2) {
-		temp_x >>= 2;
-		msbit += 2;
-	}
-	if (temp_x & DB_POW_MASK1) {
-		msbit += 1;
-	}
-	return msbit;
-}
-
-#endif				/* USE_PENTIUM_BSR && __GNUC__ */
-
-#endif				/* _BITFUNCS_H */