From 92468c53cf5af0aea06caec7b7d416c18e973685 Mon Sep 17 00:00:00 2001 From: Guillaume Chazarain Date: Mon, 19 Nov 2007 10:07:00 +0100 Subject: [PATCH] ieee80211: Stop net_ratelimit/IEEE80211_DEBUG_DROP log pollution if (net_ratelimit()) IEEE80211_DEBUG_DROP(...) can pollute the logs with messages like: printk: 1 messages suppressed. printk: 2 messages suppressed. printk: 7 messages suppressed. if debugging information is disabled. These messages are printed by net_ratelimit(). Add a wrapper to net_ratelimit() that takes into account the log level, so that net_ratelimit() is called only when we really want to print something. Signed-off-by: Guillaume Chazarain Signed-off-by: John W. Linville --- include/net/ieee80211.h | 8 ++++++++ net/ieee80211/ieee80211_crypt_ccmp.c | 2 +- net/ieee80211/ieee80211_crypt_tkip.c | 4 ++-- 3 files changed, 11 insertions(+), 3 deletions(-) diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h index 164d13211165..d8ae48439f12 100644 --- a/include/net/ieee80211.h +++ b/include/net/ieee80211.h @@ -115,8 +115,16 @@ extern u32 ieee80211_debug_level; do { if (ieee80211_debug_level & (level)) \ printk(KERN_DEBUG "ieee80211: %c %s " fmt, \ in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0) +static inline bool ieee80211_ratelimit_debug(u32 level) +{ + return (ieee80211_debug_level & level) && net_ratelimit(); +} #else #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0) +static inline bool ieee80211_ratelimit_debug(u32 level) +{ + return false; +} #endif /* CONFIG_IEEE80211_DEBUG */ /* escape_essid() is intended to be used in debug (and possibly error) diff --git a/net/ieee80211/ieee80211_crypt_ccmp.c b/net/ieee80211/ieee80211_crypt_ccmp.c index c6d760d9fbbe..208bf35b5546 100644 --- a/net/ieee80211/ieee80211_crypt_ccmp.c +++ b/net/ieee80211/ieee80211_crypt_ccmp.c @@ -338,7 +338,7 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) pos += 8; if (ccmp_replay_check(pn, key->rx_pn)) { - if (net_ratelimit()) { + if (ieee80211_ratelimit_debug(IEEE80211_DL_DROP)) { IEEE80211_DEBUG_DROP("CCMP: replay detected: STA=%s " "previous PN %02x%02x%02x%02x%02x%02x " "received PN %02x%02x%02x%02x%02x%02x\n", diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c index 58b22619ab15..8e146949fc6f 100644 --- a/net/ieee80211/ieee80211_crypt_tkip.c +++ b/net/ieee80211/ieee80211_crypt_tkip.c @@ -464,7 +464,7 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) pos += 8; if (tkip_replay_check(iv32, iv16, tkey->rx_iv32, tkey->rx_iv16)) { - if (net_ratelimit()) { + if (ieee80211_ratelimit_debug(IEEE80211_DL_DROP)) { IEEE80211_DEBUG_DROP("TKIP: replay detected: STA=%s" " previous TSC %08x%04x received TSC " "%08x%04x\n", print_mac(mac, hdr->addr2), @@ -504,7 +504,7 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) * it needs to be recalculated for the next packet. */ tkey->rx_phase1_done = 0; } - if (net_ratelimit()) { + if (ieee80211_ratelimit_debug(IEEE80211_DL_DROP)) { IEEE80211_DEBUG_DROP("TKIP: ICV error detected: STA=" "%s\n", print_mac(mac, hdr->addr2)); } -- 2.39.2