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c2ef355bf3
I discovered that if EMBEDDED=y, one can accidentally build a mac80211 stack and drivers w/ no rate control algorithm. For drivers like RTL8187 that don't supply their own RC algorithms, this will cause ieee80211_register_hw to fail (making the driver unusable). This will tell kconfig to provide a warning if no rate control algorithms have been selected. That'll at least warn the user; users that know that their drivers supply a rate control algorithm can safely ignore the warning, and those who don't know (or who expect to be using multiple drivers) can select a default RC algorithm. Signed-off-by: Andres Salomon <dilinger@collabora.co.uk> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
229 lines
6.5 KiB
Plaintext
229 lines
6.5 KiB
Plaintext
config MAC80211
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tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
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depends on CFG80211
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select CRYPTO
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select CRYPTO_ECB
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select CRYPTO_ARC4
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select CRYPTO_AES
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select CRC32
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---help---
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This option enables the hardware independent IEEE 802.11
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networking stack.
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comment "CFG80211 needs to be enabled for MAC80211"
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depends on CFG80211=n
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if MAC80211 != n
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config MAC80211_HAS_RC
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def_bool n
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config MAC80211_RC_PID
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bool "PID controller based rate control algorithm" if EMBEDDED
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select MAC80211_HAS_RC
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---help---
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This option enables a TX rate control algorithm for
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mac80211 that uses a PID controller to select the TX
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rate.
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config MAC80211_RC_MINSTREL
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bool "Minstrel" if EMBEDDED
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select MAC80211_HAS_RC
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default y
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---help---
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This option enables the 'minstrel' TX rate control algorithm
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choice
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prompt "Default rate control algorithm"
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depends on MAC80211_HAS_RC
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default MAC80211_RC_DEFAULT_MINSTREL
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---help---
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This option selects the default rate control algorithm
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mac80211 will use. Note that this default can still be
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overridden through the ieee80211_default_rc_algo module
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parameter if different algorithms are available.
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config MAC80211_RC_DEFAULT_PID
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bool "PID controller based rate control algorithm"
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depends on MAC80211_RC_PID
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---help---
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Select the PID controller based rate control as the
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default rate control algorithm. You should choose
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this unless you know what you are doing.
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config MAC80211_RC_DEFAULT_MINSTREL
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bool "Minstrel"
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depends on MAC80211_RC_MINSTREL
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---help---
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Select Minstrel as the default rate control algorithm.
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endchoice
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config MAC80211_RC_DEFAULT
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string
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default "minstrel" if MAC80211_RC_DEFAULT_MINSTREL
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default "pid" if MAC80211_RC_DEFAULT_PID
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default ""
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endif
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comment "Some wireless drivers require a rate control algorithm"
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depends on MAC80211_HAS_RC=n
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config MAC80211_MESH
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bool "Enable mac80211 mesh networking (pre-802.11s) support"
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depends on MAC80211 && EXPERIMENTAL
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---help---
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This options enables support of Draft 802.11s mesh networking.
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The implementation is based on Draft 2.08 of the Mesh Networking
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amendment. However, no compliance with that draft is claimed or even
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possible, as drafts leave a number of identifiers to be defined after
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ratification. For more information visit http://o11s.org/.
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config MAC80211_LEDS
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bool "Enable LED triggers"
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depends on MAC80211
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select NEW_LEDS
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select LEDS_TRIGGERS
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---help---
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This option enables a few LED triggers for different
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packet receive/transmit events.
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config MAC80211_DEBUGFS
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bool "Export mac80211 internals in DebugFS"
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depends on MAC80211 && DEBUG_FS
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---help---
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Select this to see extensive information about
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the internal state of mac80211 in debugfs.
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Say N unless you know you need this.
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menuconfig MAC80211_DEBUG_MENU
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bool "Select mac80211 debugging features"
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depends on MAC80211
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---help---
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This option collects various mac80211 debug settings.
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config MAC80211_NOINLINE
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bool "Do not inline TX/RX handlers"
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depends on MAC80211_DEBUG_MENU
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---help---
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This option affects code generation in mac80211, when
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selected some functions are marked "noinline" to allow
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easier debugging of problems in the transmit and receive
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paths.
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This option increases code size a bit and inserts a lot
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of function calls in the code, but is otherwise safe to
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enable.
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If unsure, say N unless you expect to be finding problems
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in mac80211.
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config MAC80211_VERBOSE_DEBUG
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bool "Verbose debugging output"
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depends on MAC80211_DEBUG_MENU
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---help---
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Selecting this option causes mac80211 to print out
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many debugging messages. It should not be selected
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on production systems as some of the messages are
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remotely triggerable.
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Do not select this option.
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config MAC80211_HT_DEBUG
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bool "Verbose HT debugging"
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depends on MAC80211_DEBUG_MENU
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---help---
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This option enables 802.11n High Throughput features
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debug tracing output.
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It should not be selected on production systems as some
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of the messages are remotely triggerable.
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Do not select this option.
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config MAC80211_TKIP_DEBUG
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bool "Verbose TKIP debugging"
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depends on MAC80211_DEBUG_MENU
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---help---
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Selecting this option causes mac80211 to print out
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very verbose TKIP debugging messages. It should not
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be selected on production systems as those messages
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are remotely triggerable.
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Do not select this option.
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config MAC80211_IBSS_DEBUG
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bool "Verbose IBSS debugging"
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depends on MAC80211_DEBUG_MENU
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---help---
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Selecting this option causes mac80211 to print out
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very verbose IBSS debugging messages. It should not
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be selected on production systems as those messages
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are remotely triggerable.
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Do not select this option.
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config MAC80211_VERBOSE_PS_DEBUG
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bool "Verbose powersave mode debugging"
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depends on MAC80211_DEBUG_MENU
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---help---
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Selecting this option causes mac80211 to print out very
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verbose power save mode debugging messages (when mac80211
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is an AP and has power saving stations.)
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It should not be selected on production systems as those
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messages are remotely triggerable.
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Do not select this option.
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config MAC80211_VERBOSE_MPL_DEBUG
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bool "Verbose mesh peer link debugging"
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depends on MAC80211_DEBUG_MENU
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depends on MAC80211_MESH
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---help---
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Selecting this option causes mac80211 to print out very
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verbose mesh peer link debugging messages (when mac80211
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is taking part in a mesh network).
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It should not be selected on production systems as those
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messages are remotely triggerable.
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Do not select this option.
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config MAC80211_VERBOSE_MHWMP_DEBUG
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bool "Verbose mesh HWMP routing debugging"
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depends on MAC80211_DEBUG_MENU
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depends on MAC80211_MESH
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---help---
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Selecting this option causes mac80211 to print out very
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verbose mesh routing (HWMP) debugging messages (when mac80211
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is taking part in a mesh network).
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It should not be selected on production systems as those
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messages are remotely triggerable.
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Do not select this option.
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config MAC80211_DEBUG_COUNTERS
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bool "Extra statistics for TX/RX debugging"
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depends on MAC80211_DEBUG_MENU
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depends on MAC80211_DEBUGFS
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---help---
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Selecting this option causes mac80211 to keep additional
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and very verbose statistics about TX and RX handler use
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and show them in debugfs.
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If unsure, say N.
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config MAC80211_DRIVER_API_TRACER
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bool "Driver API tracer"
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depends on MAC80211_DEBUG_MENU
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depends on EVENT_TRACING
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help
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Say Y here to make mac80211 register with the ftrace
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framework for the driver API -- you can see which
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driver methods it is calling then by looking at the
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trace.
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If unsure, say N.
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