linux/drivers/net/wireless/intel/iwlegacy/Kconfig

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# SPDX-License-Identifier: GPL-2.0-only
config IWLEGACY
tristate
select FW_LOADER
select LEDS_TRIGGERS
select MAC80211_LEDS
config IWL4965
tristate "Intel Wireless WiFi 4965AGN (iwl4965)"
depends on PCI && MAC80211
iwlwifi: fix LED dependencies The dependencies for LED configuration are highly inconsistent and too complicated at the moment. One of the results is a randconfig failure I get very rarely when LEDS_CLASS is in a loadable module, but the wireless core is built-in: WARNING: unmet direct dependencies detected for MAC80211_LEDS Depends on [n]: NET [=y] && WIRELESS [=y] && MAC80211 [=y] && (LEDS_CLASS [=m]=y || LEDS_CLASS [=m]=MAC80211 [=y]) Selected by [m]: - IWLEGACY [=m] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y] - IWLWIFI_LEDS [=y] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y] && IWLWIFI [=m] && (LEDS_CLASS [=m]=y || LEDS_CLASS [=m]=IWLWIFI [=m]) && (IWLMVM [=m] || IWLDVM [=m]) aarch64-linux-ld: drivers/net/wireless/ath/ath5k/led.o: in function `ath5k_register_led': led.c:(.text+0x60): undefined reference to `led_classdev_register_ext' aarch64-linux-ld: drivers/net/wireless/ath/ath5k/led.o: in function `ath5k_unregister_leds': led.c:(.text+0x200): undefined reference to `led_classdev_unregister' For iwlwifi, the dependency is wrong, since this config prevents the MAC80211_LEDS code from being part of a built-in MAC80211 driver. For iwlegacy, this is worse because the driver tries to force-enable the other subsystems, which is both a layering violation and a bug because it will still fail with MAC80211=y and IWLEGACY=m, leading to LEDS_CLASS being a module as well. The actual link failure in the ath5k driver is a result of MAC80211_LEDS being enabled but not usable. With the Kconfig logic fixed in the Intel drivers, the ath5k driver works as expected again. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20211204173848.873293-1-arnd@kernel.org
2021-12-04 18:38:33 +01:00
depends on LEDS_CLASS=y || LEDS_CLASS=MAC80211
select IWLEGACY
help
This option enables support for
Select to build the driver supporting the:
Intel Wireless WiFi Link 4965AGN
This driver uses the kernel's mac80211 subsystem.
In order to use this driver, you will need a microcode (uCode)
image for it. You can obtain the microcode from:
<http://intellinuxwireless.org/>.
The microcode is typically installed in /lib/firmware. You can
look in the hotplug script /etc/hotplug/firmware.agent to
determine which directory FIRMWARE_DIR is set to when the script
runs.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read <file:Documentation/kbuild/modules.rst>. The
module will be called iwl4965.
config IWL3945
tristate "Intel PRO/Wireless 3945ABG/BG Network Connection (iwl3945)"
depends on PCI && MAC80211
iwlwifi: fix LED dependencies The dependencies for LED configuration are highly inconsistent and too complicated at the moment. One of the results is a randconfig failure I get very rarely when LEDS_CLASS is in a loadable module, but the wireless core is built-in: WARNING: unmet direct dependencies detected for MAC80211_LEDS Depends on [n]: NET [=y] && WIRELESS [=y] && MAC80211 [=y] && (LEDS_CLASS [=m]=y || LEDS_CLASS [=m]=MAC80211 [=y]) Selected by [m]: - IWLEGACY [=m] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y] - IWLWIFI_LEDS [=y] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y] && IWLWIFI [=m] && (LEDS_CLASS [=m]=y || LEDS_CLASS [=m]=IWLWIFI [=m]) && (IWLMVM [=m] || IWLDVM [=m]) aarch64-linux-ld: drivers/net/wireless/ath/ath5k/led.o: in function `ath5k_register_led': led.c:(.text+0x60): undefined reference to `led_classdev_register_ext' aarch64-linux-ld: drivers/net/wireless/ath/ath5k/led.o: in function `ath5k_unregister_leds': led.c:(.text+0x200): undefined reference to `led_classdev_unregister' For iwlwifi, the dependency is wrong, since this config prevents the MAC80211_LEDS code from being part of a built-in MAC80211 driver. For iwlegacy, this is worse because the driver tries to force-enable the other subsystems, which is both a layering violation and a bug because it will still fail with MAC80211=y and IWLEGACY=m, leading to LEDS_CLASS being a module as well. The actual link failure in the ath5k driver is a result of MAC80211_LEDS being enabled but not usable. With the Kconfig logic fixed in the Intel drivers, the ath5k driver works as expected again. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20211204173848.873293-1-arnd@kernel.org
2021-12-04 18:38:33 +01:00
depends on LEDS_CLASS=y || LEDS_CLASS=MAC80211
select IWLEGACY
help
Select to build the driver supporting the:
Intel PRO/Wireless 3945ABG/BG Network Connection
This driver uses the kernel's mac80211 subsystem.
In order to use this driver, you will need a microcode (uCode)
image for it. You can obtain the microcode from:
<http://intellinuxwireless.org/>.
The microcode is typically installed in /lib/firmware. You can
look in the hotplug script /etc/hotplug/firmware.agent to
determine which directory FIRMWARE_DIR is set to when the script
runs.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read <file:Documentation/kbuild/modules.rst>. The
module will be called iwl3945.
menu "iwl3945 / iwl4965 Debugging Options"
depends on IWLEGACY
config IWLEGACY_DEBUG
bool "Enable full debugging output in iwlegacy (iwl 3945/4965) drivers"
depends on IWLEGACY
help
This option will enable debug tracing output for the iwlegacy
drivers.
This will result in the kernel module being ~100k larger. You can
control which debug output is sent to the kernel log by setting the
value in
/sys/class/net/wlan0/device/debug_level
This entry will only exist if this option is enabled.
To set a value, simply echo an 8-byte hex value to the same file:
% echo 0x43fff > /sys/class/net/wlan0/device/debug_level
You can find the list of debug mask values in:
drivers/net/wireless/iwlegacy/common.h
If this is your first time using this driver, you should say Y here
as the debug information can assist others in helping you resolve
any problems you may encounter.
config IWLEGACY_DEBUGFS
bool "iwlegacy (iwl 3945/4965) debugfs support"
depends on IWLEGACY && MAC80211_DEBUGFS
help
Enable creation of debugfs files for the iwlegacy drivers. This
is a low-impact option that allows getting insight into the
driver's state at runtime.
endmenu