1 files changed, 24 insertions, 4 deletions

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 1c7fdcd22a98..a58beddb4821 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -1208,6 +1208,12 @@ static int smi_num; /* Used to sequence the SMIs */
 #define DEFAULT_REGSPACING      1
 #define DEFAULT_REGSIZE         1
 
+#ifdef CONFIG_ACPI
+static bool          si_tryacpi = 1;
+#endif
+#ifdef CONFIG_DMI
+static bool          si_trydmi = 1;
+#endif
 static bool          si_trydefaults = 1;
 static char          *si_type[SI_MAX_PARMS];
 #define MAX_SI_TYPE_STR 30
@@ -1238,6 +1244,16 @@ MODULE_PARM_DESC(hotmod, "Add and remove interfaces.  See"
                  " Documentation/IPMI.txt in the kernel sources for the"
                  " gory details.");
 
+#ifdef CONFIG_ACPI
+module_param_named(tryacpi, si_tryacpi, bool, 0);
+MODULE_PARM_DESC(tryacpi, "Setting this to zero will disable the"
+                 " default scan of the interfaces identified via ACPI");
+#endif
+#ifdef CONFIG_DMI
+module_param_named(trydmi, si_trydmi, bool, 0);
+MODULE_PARM_DESC(trydmi, "Setting this to zero will disable the"
+                 " default scan of the interfaces identified via DMI");
+#endif
 module_param_named(trydefaults, si_trydefaults, bool, 0);
 MODULE_PARM_DESC(trydefaults, "Setting this to 'false' will disable the"
                  " default scan of the KCS and SMIC interface at the standard"
@@ -3408,16 +3424,20 @@ static int init_ipmi_si(void)
 #endif
 
 #ifdef CONFIG_ACPI
-        pnp_register_driver(&ipmi_pnp_driver);
-        pnp_registered = 1;
+        if (si_tryacpi) {
+                pnp_register_driver(&ipmi_pnp_driver);
+                pnp_registered = 1;
+        }
 #endif
 
 #ifdef CONFIG_DMI
-        dmi_find_bmc();
+        if (si_trydmi)
+                dmi_find_bmc();
 #endif
 
 #ifdef CONFIG_ACPI
-        spmi_find_bmc();
+        if (si_tryacpi)
+                spmi_find_bmc();
 #endif
 
         /* We prefer devices with interrupts, but in the case of a machine