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linux-next/net/batman-adv/bitarray.h
Sven Eckelmann 6b5e971a28 batman-adv: Replace C99 int types with kernel type
(s|u)(8|16|32|64) are the preferred types in the kernel. The use of the
standard C99 types u?int(8|16|32|64)_t are objected by some people and even
checkpatch now warns about using them.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
2015-08-25 00:12:17 +02:00

58 lines
1.7 KiB
C

/* Copyright (C) 2006-2015 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich, Marek Lindner
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef _NET_BATMAN_ADV_BITARRAY_H_
#define _NET_BATMAN_ADV_BITARRAY_H_
#include "main.h"
#include <linux/bitops.h>
#include <linux/compiler.h>
#include <linux/types.h>
/* Returns 1 if the corresponding bit in the given seq_bits indicates true
* and curr_seqno is within range of last_seqno. Otherwise returns 0.
*/
static inline int batadv_test_bit(const unsigned long *seq_bits,
u32 last_seqno, u32 curr_seqno)
{
s32 diff;
diff = last_seqno - curr_seqno;
if (diff < 0 || diff >= BATADV_TQ_LOCAL_WINDOW_SIZE)
return 0;
return test_bit(diff, seq_bits) != 0;
}
/* turn corresponding bit on, so we can remember that we got the packet */
static inline void batadv_set_bit(unsigned long *seq_bits, s32 n)
{
/* if too old, just drop it */
if (n < 0 || n >= BATADV_TQ_LOCAL_WINDOW_SIZE)
return;
set_bit(n, seq_bits); /* turn the position on */
}
/* receive and process one packet, returns 1 if received seq_num is considered
* new, 0 if old
*/
int batadv_bit_get_packet(void *priv, unsigned long *seq_bits, s32 seq_num_diff,
int set_mark);
#endif /* _NET_BATMAN_ADV_BITARRAY_H_ */