This removes the ipmi_devintf to be a module, but it will automatically
compiled in if ipmi_msghandler is set.

ipmi_msghandler module is renamed to ipmi_handler because of the name
clash with the ipmi_msghandler.o object file (see Makefile for details).
Alternatively ipmi_msghandler.c could be renamed to ipmi_handler.c, but
not polluting git history should be more of an advantage than module renaming.

cleanup_ipmi_dev() and init_ipmi_devintf() implemented in ipmi_devintf.c
are are simply declared ipmi_msghandler.c without creating a separate header
file which looks more reasonable to me. Hope that is ok.

In fact there already was a kind of autoloading mechanism (gets deleted
with this patch). I interpret this line that ipmi_devintf should get
autoloaded if ipmi_si gets loaded?:
-MODULE_ALIAS("platform:ipmi_si");
But:
  - It's wrong: There are other low lever drivers which can be used by
    ipmi_devintf
  - It does not work (anymore?)
  - There is no need to keep ipmi_devintf as a module (resource and load time
    overhead)

Signed-off-by: Thomas Renninger <[email protected]>
CC: [email protected]
CC: [email protected]

Index: kernel_ipmi/drivers/char/ipmi/Kconfig
===================================================================
--- kernel_ipmi.orig/drivers/char/ipmi/Kconfig
+++ kernel_ipmi/drivers/char/ipmi/Kconfig
@@ -8,6 +8,8 @@ menuconfig IPMI_HANDLER
        help
          This enables the central IPMI message handler, required for IPMI
         to work.
+        It also provides userspace interface /dev/ipmiX, so that userspace
+        tools can query the BMC.
 
          IPMI is a standard for managing sensors (temperature,
          voltage, etc.) in a system.
@@ -37,12 +39,6 @@ config IPMI_PANIC_STRING
          You can fetch these events and use the sequence numbers to piece the
          string together.
 
-config IPMI_DEVICE_INTERFACE
-       tristate 'Device interface for IPMI'
-       help
-         This provides an IOCTL interface to the IPMI message handler so
-        userland processes may use IPMI.  It supports poll() and select().
-
 config IPMI_SI
        tristate 'IPMI System Interface handler'
        help
Index: kernel_ipmi/drivers/char/ipmi/Makefile
===================================================================
--- kernel_ipmi.orig/drivers/char/ipmi/Makefile
+++ kernel_ipmi/drivers/char/ipmi/Makefile
@@ -4,8 +4,10 @@
 
 ipmi_si-y := ipmi_si_intf.o ipmi_kcs_sm.o ipmi_smic_sm.o ipmi_bt_sm.o
 
-obj-$(CONFIG_IPMI_HANDLER) += ipmi_msghandler.o
-obj-$(CONFIG_IPMI_DEVICE_INTERFACE) += ipmi_devintf.o
+obj-$(CONFIG_IPMI_HANDLER) += ipmi_handler.o
+
+ipmi_handler-objs := ipmi_msghandler.o ipmi_devintf.o
+
 obj-$(CONFIG_IPMI_SI) += ipmi_si.o
 obj-$(CONFIG_IPMI_WATCHDOG) += ipmi_watchdog.o
 obj-$(CONFIG_IPMI_POWEROFF) += ipmi_poweroff.o
Index: kernel_ipmi/drivers/char/ipmi/ipmi_devintf.c
===================================================================
--- kernel_ipmi.orig/drivers/char/ipmi/ipmi_devintf.c
+++ kernel_ipmi/drivers/char/ipmi/ipmi_devintf.c
@@ -928,7 +928,7 @@ static struct ipmi_smi_watcher smi_watch
        .smi_gone = ipmi_smi_gone,
 };
 
-static int __init init_ipmi_devintf(void)
+int __init init_ipmi_devintf(void)
 {
        int rv;
 
@@ -964,9 +964,8 @@ static int __init init_ipmi_devintf(void
 
        return 0;
 }
-module_init(init_ipmi_devintf);
 
-static void __exit cleanup_ipmi(void)
+void cleanup_ipmi_dev(void)
 {
        struct ipmi_reg_list *entry, *entry2;
        mutex_lock(&reg_list_mutex);
@@ -980,9 +979,3 @@ static void __exit cleanup_ipmi(void)
        ipmi_smi_watcher_unregister(&smi_watcher);
        unregister_chrdev(ipmi_major, DEVICE_NAME);
 }
-module_exit(cleanup_ipmi);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Corey Minyard <[email protected]>");
-MODULE_DESCRIPTION("Linux device interface for the IPMI message handler.");
-MODULE_ALIAS("platform:ipmi_si");
Index: kernel_ipmi/drivers/char/ipmi/ipmi_msghandler.c
===================================================================
--- kernel_ipmi.orig/drivers/char/ipmi/ipmi_msghandler.c
+++ kernel_ipmi/drivers/char/ipmi/ipmi_msghandler.c
@@ -4560,13 +4560,27 @@ static int ipmi_init_msghandler(void)
        return 0;
 }
 
+void cleanup_ipmi_dev(void);
+static void cleanup_ipmi(void);
+int init_ipmi_devintf(void);
+
+
 static int __init ipmi_init_msghandler_mod(void)
 {
-       ipmi_init_msghandler();
+       int ret;
+
+       ret = ipmi_init_msghandler();
+       if (ret)
+               return ret;
+       ret = init_ipmi_devintf();
+       if (ret) {
+               cleanup_ipmi();
+               return ret;
+       }
        return 0;
 }
 
-static void __exit cleanup_ipmi(void)
+static void cleanup_ipmi(void)
 {
        int count;
 
@@ -4605,6 +4619,7 @@ static void __exit cleanup_ipmi(void)
        if (count != 0)
                printk(KERN_WARNING PFX "recv message count %d at exit\n",
                       count);
+       cleanup_ipmi_dev();
 }
 module_exit(cleanup_ipmi);
 


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