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Commit 0dfe6e7e authored by Corey Minyard's avatar Corey Minyard Committed by Linus Torvalds
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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: default avatarCorey Minyard <cminyard@mvista.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent eb6d78ec

drivers/char/ipmi/Kconfig

+12 −0
Original line number Diff line number Diff line
@@ -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

drivers/char/ipmi/ipmi_si_intf.c

+1 −1
Original line number Diff line number Diff line
@@ -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];