diff options
| author | Corey Minyard <cminyard@mvista.com> | 2014-04-14 09:46:53 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-17 12:23:07 -0700 |
| commit | 0dfe6e7ed47feeb22f3cf8c7d8ac7e65bd4e87f5 (patch) | |
| tree | 251baf30cfce1f195e4d472931b8dacd03786c74 | |
| parent | eb6d78ec213e6938559b801421d64714dafcf4b2 (diff) | |
| download | linux-0dfe6e7ed47feeb22f3cf8c7d8ac7e65bd4e87f5.tar.bz2 | |
ipmi: Turn off default probing of interfaces
The default probing can cause problems with some system, slow booting,
extra CPU usages, etc. Turn it off by default and give a config option
to enable it.
From: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/char/ipmi/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/char/ipmi/ipmi_si_intf.c | 2 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/char/ipmi/Kconfig b/drivers/char/ipmi/Kconfig index 0baa8fab4ea7..db1c9b7adaa6 100644 --- a/drivers/char/ipmi/Kconfig +++ b/drivers/char/ipmi/Kconfig @@ -50,6 +50,18 @@ config IPMI_SI Currently, only KCS and SMIC are supported. If you are using IPMI, you should probably say "y" here. +config IPMI_SI_PROBE_DEFAULTS + bool 'Probe for all possible IPMI system interfaces by default' + default n + depends on IPMI_SI + help + Modern systems will usually expose IPMI interfaces via a discoverable + firmware mechanism such as ACPI or DMI. Older systems do not, and so + the driver is forced to probe hardware manually. This may cause boot + delays. Say "n" here to disable this manual probing. IPMI will then + only be available on older systems if the "ipmi_si_intf.trydefaults=1" + boot argument is passed. + config IPMI_WATCHDOG tristate 'IPMI Watchdog Timer' help diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 9c4069151955..25a1436a4291 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -1239,7 +1239,7 @@ static bool si_tryplatform = 1; #ifdef CONFIG_PCI static bool si_trypci = 1; #endif -static bool si_trydefaults = 1; +static bool si_trydefaults = IS_ENABLED(CONFIG_IPMI_SI_PROBE_DEFAULTS); static char *si_type[SI_MAX_PARMS]; #define MAX_SI_TYPE_STR 30 static char si_type_str[MAX_SI_TYPE_STR]; |