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mac80211: make CALL_TXH a statement 

The multi-line code in this macro wasn't wrapped
in do {} while (0) so we cannot use it in an if()
branch safely in the future -- fix that.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2009-10-29 08:43:48 +01:00 committed by John W. Linville
parent 86c34fe89e
commit 9aa4aee30f
1 changed files with 17 additions and 15 deletions
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32
net/mac80211/tx.c
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@ -1200,23 +1200,25 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
struct sk_buff *skb = tx->skb;
ieee80211_tx_result res = TX_DROP;
#define CALL_TXH(txh) \
res = txh(tx); \
if (res != TX_CONTINUE) \
goto txh_done;
#define CALL_TXH(txh) \
do { \
res = txh(tx); \
if (res != TX_CONTINUE) \
goto txh_done; \
} while (0)
CALL_TXH(ieee80211_tx_h_check_assoc)
CALL_TXH(ieee80211_tx_h_ps_buf)
CALL_TXH(ieee80211_tx_h_select_key)
CALL_TXH(ieee80211_tx_h_michael_mic_add)
CALL_TXH(ieee80211_tx_h_rate_ctrl)
CALL_TXH(ieee80211_tx_h_misc)
CALL_TXH(ieee80211_tx_h_sequence)
CALL_TXH(ieee80211_tx_h_fragment)
CALL_TXH(ieee80211_tx_h_check_assoc);
CALL_TXH(ieee80211_tx_h_ps_buf);
CALL_TXH(ieee80211_tx_h_select_key);
CALL_TXH(ieee80211_tx_h_michael_mic_add);
CALL_TXH(ieee80211_tx_h_rate_ctrl);
CALL_TXH(ieee80211_tx_h_misc);
CALL_TXH(ieee80211_tx_h_sequence);
CALL_TXH(ieee80211_tx_h_fragment);
/* handlers after fragment must be aware of tx info fragmentation! */
CALL_TXH(ieee80211_tx_h_stats)
CALL_TXH(ieee80211_tx_h_encrypt)
CALL_TXH(ieee80211_tx_h_calculate_duration)
CALL_TXH(ieee80211_tx_h_stats);
CALL_TXH(ieee80211_tx_h_encrypt);
CALL_TXH(ieee80211_tx_h_calculate_duration);
#undef CALL_TXH
txh_done: