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| author | Linus Lüssing <linus.luessing@web.de> | 2012-09-14 00:40:54 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-09-19 15:49:53 -0400 |
| commit | dbd6b11e15a2f96030da17dbeda943a8a98ee990 (patch) | |
| tree | da58d7bcdf790f48555e4e0152ddf3a1df23dee8 /net/batman-adv/bitarray.h | |
| parent | 59d86c760fbb855d9a26b9b280d4ff59303f2fc5 (diff) | |
| download | linux-dbd6b11e15a2f96030da17dbeda943a8a98ee990.tar.gz linux-dbd6b11e15a2f96030da17dbeda943a8a98ee990.tar.bz2 linux-dbd6b11e15a2f96030da17dbeda943a8a98ee990.zip | |
batman-adv: make batadv_test_bit() return 0 or 1 only
On some architectures test_bit() can return other values than 0 or 1:
With a generic x86 OpenWrt image in a kvm setup (batadv_)test_bit()
frequently returns -1 for me, leading to batadv_iv_ogm_update_seqnos()
wrongly signaling a protected seqno window.
This patch tries to fix this issue by making batadv_test_bit() return 0
or 1 only.
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Acked-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/batman-adv/bitarray.h')
| -rw-r--r-- | net/batman-adv/bitarray.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/batman-adv/bitarray.h b/net/batman-adv/bitarray.h index a081ce1c0514..cebaae7e148b 100644 --- a/net/batman-adv/bitarray.h +++ b/net/batman-adv/bitarray.h @@ -20,8 +20,8 @@ #ifndef _NET_BATMAN_ADV_BITARRAY_H_ #define _NET_BATMAN_ADV_BITARRAY_H_ -/* returns true if the corresponding bit in the given seq_bits indicates true - * and curr_seqno is within range of last_seqno +/* 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, uint32_t last_seqno, uint32_t curr_seqno) @@ -32,7 +32,7 @@ static inline int batadv_test_bit(const unsigned long *seq_bits, if (diff < 0 || diff >= BATADV_TQ_LOCAL_WINDOW_SIZE) return 0; else - return test_bit(diff, seq_bits); + return test_bit(diff, seq_bits) != 0; } /* turn corresponding bit on, so we can remember that we got the packet */ |