diff options
| author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2010-10-21 15:47:03 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-15 19:24:12 +0100 |
| commit | 926a0a094d2b9052db3f7f37438c3d305cea4be7 (patch) | |
| tree | d2f19acc7b84ea60e823638f2cf49e5a11d3401e /net/wireless/reg.c | |
| parent | cfg80211: fix disabling channels based on hints (diff) | |
| download | linux-926a0a094d2b9052db3f7f37438c3d305cea4be7.tar.xz linux-926a0a094d2b9052db3f7f37438c3d305cea4be7.zip | |
cfg80211: add debug prints for when we ignore regulatory hints
This can help with debugging issues. You will only see
these with CONFIG_CFG80211_REG_DEBUG enabled.
Cc: Easwar Krishnan <easwar.krishnan@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless/reg.c')
| -rw-r--r-- | net/wireless/reg.c | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 8ab65f2afe70..7bff1c1d6c8f 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -711,6 +711,25 @@ int freq_reg_info(struct wiphy *wiphy, } EXPORT_SYMBOL(freq_reg_info); +#ifdef CONFIG_CFG80211_REG_DEBUG +static const char *reg_initiator_name(enum nl80211_reg_initiator initiator) +{ + switch (initiator) { + case NL80211_REGDOM_SET_BY_CORE: + return "Set by core"; + case NL80211_REGDOM_SET_BY_USER: + return "Set by user"; + case NL80211_REGDOM_SET_BY_DRIVER: + return "Set by driver"; + case NL80211_REGDOM_SET_BY_COUNTRY_IE: + return "Set by country IE"; + default: + WARN_ON(1); + return "Set by bug"; + } +} +#endif + /* * Note that right now we assume the desired channel bandwidth * is always 20 MHz for each individual channel (HT40 uses 20 MHz @@ -821,19 +840,36 @@ static void handle_band(struct wiphy *wiphy, static bool ignore_reg_update(struct wiphy *wiphy, enum nl80211_reg_initiator initiator) { - if (!last_request) + if (!last_request) { + REG_DBG_PRINT("cfg80211: Ignoring regulatory request %s since " + "last_request is not set\n", + reg_initiator_name(initiator)); return true; + } + if (initiator == NL80211_REGDOM_SET_BY_CORE && - wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) + wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) { + REG_DBG_PRINT("cfg80211: Ignoring regulatory request %s " + "since the driver uses its own custom " + "regulatory domain ", + reg_initiator_name(initiator)); return true; + } + /* * wiphy->regd will be set once the device has its own * desired regulatory domain set */ if (wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY && !wiphy->regd && initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE && - !is_world_regdom(last_request->alpha2)) + !is_world_regdom(last_request->alpha2)) { + REG_DBG_PRINT("cfg80211: Ignoring regulatory request %s " + "since the driver requires its own regulaotry " + "domain to be set first", + reg_initiator_name(initiator)); return true; + } + return false; } |