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authorPali Rohár <pali.rohar@gmail.com>2018-01-27 19:22:01 +0300
committerGuenter Roeck <linux@roeck-us.net>2018-01-27 20:33:38 +0300
commit836ad11235d04f7a6fcd41b1abceaeacc70153c0 (patch)
tree1f23f37235deddeed5bb5fabf6f81593c98062f6 /drivers/hwmon
parent6509614fdd2d05c6926d50901a45d5dfb852b715 (diff)
downloadlinux-836ad11235d04f7a6fcd41b1abceaeacc70153c0.tar.xz
hwmon: (dell-smm) Enable broken functionality via "force" module param
Some Dell machines are broken and some functionality is disabled. Show warning into dmesg about this fact and allow user via "force" module param to override brokenness and enable broken functionality. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/dell-smm-hwmon.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
index c7c9e95e58a8..aef4f8317ae2 100644
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@ -1060,8 +1060,11 @@ static int __init i8k_probe(void)
i8k_get_dmi_data(DMI_BIOS_VERSION));
}
- if (dmi_check_system(i8k_blacklist_fan_type_dmi_table))
- disallow_fan_type_call = true;
+ if (dmi_check_system(i8k_blacklist_fan_type_dmi_table)) {
+ pr_warn("broken Dell BIOS detected, disallow fan type call\n");
+ if (!force)
+ disallow_fan_type_call = true;
+ }
strlcpy(bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
sizeof(bios_version));