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authorJohannes Berg <johannes@sipsolutions.net>2008-01-29 16:57:51 +0100
committerJohn W. Linville <linville@tuxdriver.com>2008-02-01 16:12:24 -0500
commit6feeb8aad7925b4c00f785eac3039c772629b42f (patch)
treed61348505908cfcddd1ff8af18f5bab613bbb6de /net/mac80211/Kconfig
parent24e1c13c93cbdd05e4b7ea921c0050b036555adc (diff)
downloadblackbird-op-linux-6feeb8aad7925b4c00f785eac3039c772629b42f.tar.gz
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mac80211: make alignment warning optional
Driver authors should be aware of the alignment requirements, but not everybody cares about the warning. This patch makes it depend on a new Kconfig symbol MAC80211_DEBUG_PACKET_ALIGNMENT which can be enabled regardless of MAC80211_DEBUG and is recommended for driver authors (only). This also restricts the warning to data packets so other packets need not be realigned to not trigger the warning. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/Kconfig')
-rw-r--r--net/mac80211/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index 09c255002e56..e77592d050ce 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -98,6 +98,18 @@ config MAC80211_DEBUGFS
Say N unless you know you need this.
+config MAC80211_DEBUG_PACKET_ALIGNMENT
+ bool "Enable packet alignment debugging"
+ depends on MAC80211
+ help
+ This option is recommended for driver authors and strongly
+ discouraged for everybody else, it will trigger a warning
+ when a driver hands mac80211 a buffer that is aligned in
+ a way that will cause problems with the IP stack on some
+ architectures.
+
+ Say N unless you're writing a mac80211 based driver.
+
config MAC80211_DEBUG
bool "Enable debugging output"
depends on MAC80211
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