[PATCH] EISA bus MODALIAS attributes support

Add modalias attribute support for the almost forgotten now EISA bus and
(at least some) EISA-aware modules.

The modalias entry looks like (for an 3c509 NIC):

 eisa:sTCM5093

and the in-module alias like:

 eisa:sTCM5093*

The patch moves struct eisa_device_id declaration from include/linux/eisa.h
to include/linux/mod_devicetable.h (so that the former now #includes the
latter), adds proper MODULE_DEVICE_TABLE(eisa, ...) statements for all
drivers with EISA IDs I found (some drivers already have that DEVICE_TABLE
declared), and adds recognision of __mod_eisa_device_table to
scripts/mod/file2alias.c so that proper modules.alias will be generated.

There's no support for /lib/modules/$kver/modules.eisamap, as it's not used
by any existing tools, and because with in-kernel modalias mechanism those
maps are obsolete anyway.

The rationale for this patch is:

 a) to make EISA bus to act as other busses with modalias
    support, to unify driver loading

 b) to foget about EISA finally - with this patch, kernel
    (who still supports EISA) will be the only one who knows
    how to choose the necessary drivers for this bus ;)

[akpm@osdl.org: fix the kbuild bit]
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Acked-the-net-bits-by: Jeff Garzik <jeff@garzik.org>
Acked-the-tulip-bit-by: Valerie Henson <val_henson@linux.intel.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

8 files changed, 31 insertions, 1 deletions

diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c
index 6078e2f58817..3a365e159d89 100644
--- a/drivers/eisa/eisa-bus.c
+++ b/drivers/eisa/eisa-bus.c
@@ -128,9 +128,23 @@ static int eisa_bus_match (struct device *dev, struct device_driver *drv)
         return 0;
 }
 
+static int eisa_bus_uevent(struct device *dev, char **envp, int num_envp,
+                           char *buffer, int buffer_size)
+{
+        struct eisa_device *edev = to_eisa_device(dev);
+        int i = 0;
+        int length = 0;
+
+        add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
+                       "MODALIAS=" EISA_DEVICE_MODALIAS_FMT, edev->id.sig);
+        envp[i] = NULL;
+        return 0;
+}
+
 struct bus_type eisa_bus_type = {
         .name  = "eisa",
         .match = eisa_bus_match,
+        .uevent = eisa_bus_uevent,
 };
 
 int eisa_driver_register (struct eisa_driver *edrv)
@@ -160,6 +174,14 @@ static ssize_t eisa_show_state (struct device *dev, struct device_attribute *att
 
 static DEVICE_ATTR(enabled, S_IRUGO, eisa_show_state, NULL);
 
+static ssize_t eisa_show_modalias (struct device *dev, struct device_attribute *attr, char *buf)
+{
+        struct eisa_device *edev = to_eisa_device (dev);
+        return sprintf (buf, EISA_DEVICE_MODALIAS_FMT "\n", edev->id.sig);
+}
+
+static DEVICE_ATTR(modalias, S_IRUGO, eisa_show_modalias, NULL);
+
 static int __init eisa_init_device (struct eisa_root_device *root,
                                     struct eisa_device *edev,
                                     int slot)
@@ -209,6 +231,7 @@ static int __init eisa_register_device (struct eisa_device *edev)
 
         device_create_file (&edev->dev, &dev_attr_signature);
         device_create_file (&edev->dev, &dev_attr_enabled);
+        device_create_file (&edev->dev, &dev_attr_modalias);
 
         return 0;
 }
diff --git a/drivers/net/3c509.c b/drivers/net/3c509.c
index 59c33925be62..b936373ab2a5 100644
--- a/drivers/net/3c509.c
+++ b/drivers/net/3c509.c
@@ -225,6 +225,7 @@ static struct eisa_device_id el3_eisa_ids[] = {
                 { "TCM5095" },
                 { "" }
 };
+MODULE_DEVICE_TABLE(eisa, el3_eisa_ids);
 
 static int el3_eisa_probe (struct device *device);
 
diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index af301f09d674..df42e28cc80f 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -851,6 +851,7 @@ static struct eisa_device_id vortex_eisa_ids[] = {
         { "TCM5970", CH_3C597 },
         { "" }
 };
+MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids);
 
 static int vortex_eisa_probe(struct device *device);
 static int vortex_eisa_remove(struct device *device);
diff --git a/drivers/net/ne3210.c b/drivers/net/ne3210.c
index 0fa8e4d22769..d66328975425 100644
--- a/drivers/net/ne3210.c
+++ b/drivers/net/ne3210.c
@@ -343,6 +343,7 @@ static struct eisa_device_id ne3210_ids[] = {
         { "NVL1801" },
         { "" },
 };
+MODULE_DEVICE_TABLE(eisa, ne3210_ids);
 
 static struct eisa_driver ne3210_eisa_driver = {
         .id_table = ne3210_ids,
diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
index e661d0a9cc64..fb5fa7d68888 100644
--- a/drivers/net/tulip/de4x5.c
+++ b/drivers/net/tulip/de4x5.c
@@ -2114,6 +2114,7 @@ static struct eisa_device_id de4x5_eisa_ids[] = {
         { "DEC4250", 0 },       /* 0 is the board name index... */
         { "" }
 };
+MODULE_DEVICE_TABLE(eisa, de4x5_eisa_ids);
 
 static struct eisa_driver de4x5_eisa_driver = {
         .id_table = de4x5_eisa_ids,
diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c
index 0e4a7ebe300a..6b35ed8301e0 100644
--- a/drivers/scsi/aha1740.c
+++ b/drivers/scsi/aha1740.c
@@ -681,6 +681,7 @@ static struct eisa_device_id aha1740_ids[] = {
         { "ADP0400" },          /* 1744  */
         { "" }
 };
+MODULE_DEVICE_TABLE(eisa, aha1740_ids);
 
 static struct eisa_driver aha1740_driver = {
         .id_table = aha1740_ids,
diff --git a/drivers/scsi/aic7xxx/aic7770_osm.c b/drivers/scsi/aic7xxx/aic7770_osm.c
index 867cbe23579b..1ac119733bac 100644
--- a/drivers/scsi/aic7xxx/aic7770_osm.c
+++ b/drivers/scsi/aic7xxx/aic7770_osm.c
@@ -132,7 +132,8 @@ static struct eisa_device_id aic7770_ids[] = {
         { "ADP7770", 5 }, /* AIC7770 generic */
         { "" }
 };
-  
+MODULE_DEVICE_TABLE(eisa, aic7770_ids);
+
 static struct eisa_driver aic7770_driver = {
         .id_table       = aic7770_ids,
         .driver = {
diff --git a/drivers/scsi/sim710.c b/drivers/scsi/sim710.c
index b27e85428daa..551baccec523 100644
--- a/drivers/scsi/sim710.c
+++ b/drivers/scsi/sim710.c
@@ -282,6 +282,7 @@ static struct eisa_device_id sim710_eisa_ids[] = {
         { "HWP0C80" },
         { "" }
 };
+MODULE_DEVICE_TABLE(eisa, sim710_eisa_ids);
 
 static __init int
 sim710_eisa_probe(struct device *dev)