[PATCH] Make MODULE_DEVICE_TABLE work for vio devices

Make MODULE_DEVICE_TABLE work for vio devices.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/ppc64/kernel/vio.c

@@ -111,7 +111,7 @@ EXPORT_SYMBOL(vio_unregister_driver);
 static const struct vio_device_id *vio_match_device(
 		const struct vio_device_id *ids, const struct vio_dev *dev)
 {
-	while (ids->type) {
+	while (ids->type[0] != '\0') {
 		if (vio_bus_ops.match(ids, dev))
 			return ids;
 		ids++;

drivers/block/viodasd.c

@@ -776,7 +776,7 @@ static int viodasd_remove(struct vio_dev *vdev)
  */
 static struct vio_device_id viodasd_device_table[] __devinitdata = {
 	{ "viodasd", "" },
-	{ 0, }
+	{ "", "" }
 };
 
 MODULE_DEVICE_TABLE(vio, viodasd_device_table);

drivers/cdrom/viocd.c

@@ -734,7 +734,7 @@ static int viocd_remove(struct vio_dev *vdev)
  */
 static struct vio_device_id viocd_device_table[] __devinitdata = {
 	{ "viocd", "" },
-	{ 0, }
+	{ "", "" }
 };
 
 MODULE_DEVICE_TABLE(vio, viocd_device_table);

drivers/char/hvc_vio.c

@@ -39,7 +39,7 @@ char hvc_driver_name[] = "hvc_console";
 
 static struct vio_device_id hvc_driver_table[] __devinitdata = {
 	{"serial", "hvterm1"},
-	{ NULL, }
+	{ "", "" }
 };
 MODULE_DEVICE_TABLE(vio, hvc_driver_table);
 

drivers/char/hvcs.c

@@ -527,7 +527,7 @@ static int khvcsd(void *unused)
 
 static struct vio_device_id hvcs_driver_table[] __devinitdata= {
 	{"serial-server", "hvterm2"},
-	{ NULL, }
+	{ "", "" }
 };
 MODULE_DEVICE_TABLE(vio, hvcs_driver_table);
 

drivers/char/viotape.c

@@ -991,7 +991,7 @@ static int viotape_remove(struct vio_dev *vdev)
  */
 static struct vio_device_id viotape_device_table[] __devinitdata = {
 	{ "viotape", "" },
-	{ 0, }
+	{ "", "" }
 };
 
 MODULE_DEVICE_TABLE(vio, viotape_device_table);

drivers/net/ibmveth.c

@@ -1144,7 +1144,7 @@ static void ibmveth_proc_unregister_driver(void)
 
 static struct vio_device_id ibmveth_device_table[] __devinitdata= {
 	{ "network", "IBM,l-lan"},
-	{ 0,}
+	{ "", "" }
 };
 
 MODULE_DEVICE_TABLE(vio, ibmveth_device_table);

drivers/net/iseries_veth.c

@@ -1370,7 +1370,7 @@ static int veth_probe(struct vio_dev *vdev, const struct vio_device_id *id)
  */
 static struct vio_device_id veth_device_table[] __devinitdata = {
 	{ "vlan", "" },
-	{ NULL, NULL }
+	{ "", "" }
 };
 MODULE_DEVICE_TABLE(vio, veth_device_table);
 

drivers/scsi/ibmvscsi/ibmvscsi.c

@@ -1442,7 +1442,7 @@ static int ibmvscsi_remove(struct vio_dev *vdev)
  */
 static struct vio_device_id ibmvscsi_device_table[] __devinitdata = {
 	{"vscsi", "IBM,v-scsi"},
-	{0,}
+	{ "", "" }
 };
 
 MODULE_DEVICE_TABLE(vio, ibmvscsi_device_table);

include/asm-ppc64/vio.h

@@ -19,6 +19,7 @@
 #include <linux/errno.h>
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
+#include <linux/mod_devicetable.h>
 
 #include <asm/hvcall.h>
 #include <asm/scatterlist.h>
@@ -52,11 +53,6 @@ struct vio_dev {
 	struct device dev;
 };
 
-struct vio_device_id {
-	char *type;
-	char *compat;
-};
-
 struct vio_driver {
 	struct list_head node;
 	char *name;

include/linux/mod_devicetable.h

 /*
  * Device tables which are exported to userspace via
- * scripts/table2alias.c.  You must keep that file in sync with this
+ * scripts/mod/file2alias.c.  You must keep that file in sync with this
  * header.
  */
 
@@ -190,6 +190,11 @@ struct of_device_id
 #endif
 };
 
+/* VIO */
+struct vio_device_id {
+	char type[32];
+	char compat[32];
+};
 
 /* PCMCIA */
 

scripts/mod/file2alias.c

@@ -341,6 +341,22 @@ static int do_of_entry (const char *filename, struct of_device_id *of, char *ali
     return 1;
 }
 
+static int do_vio_entry(const char *filename, struct vio_device_id *vio,
+		char *alias)
+{
+	char *tmp;
+
+	sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*",
+			vio->compat[0] ? vio->compat : "*");
+
+	/* Replace all whitespace with underscores */
+	for (tmp = alias; tmp && *tmp; tmp++)
+		if (isspace (*tmp))
+			*tmp = '_';
+
+	return 1;
+}
+
 /* Ignore any prefix, eg. v850 prepends _ */
 static inline int sym_is(const char *symbol, const char *name)
 {
@@ -422,6 +438,9 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
         else if (sym_is(symname, "__mod_of_device_table"))
 		do_table(symval, sym->st_size, sizeof(struct of_device_id),
 			 do_of_entry, mod);
+        else if (sym_is(symname, "__mod_vio_device_table"))
+		do_table(symval, sym->st_size, sizeof(struct vio_device_id),
+			 do_vio_entry, mod);
 
 }