linux/net/batman-adv/bitarray.c

// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) B.A.T.M.A.N. contributors:
 *
 * Simon Wunderlich, Marek Lindner
 */

#include "bitarray.h"
#include "main.h"

#include <linux/bitmap.h>

#include "log.h"

/* shift the packet array by n places. */
static void batadv_bitmap_shift_left(unsigned long *seq_bits, s32 n)
{ … }

/**
 * batadv_bit_get_packet() - receive and process one packet within the sequence
 *  number window
 * @priv: the bat priv with all the soft interface information
 * @seq_bits: pointer to the sequence number receive packet
 * @seq_num_diff: difference between the current/received sequence number and
 *  the last sequence number
 * @set_mark: whether this packet should be marked in seq_bits
 *
 * Return: true if the window was moved (either new or very old),
 *  false if the window was not moved/shifted.
 */
bool batadv_bit_get_packet(void *priv, unsigned long *seq_bits,
			   s32 seq_num_diff, int set_mark)
{ … }