Re: [PATCH 21/21] ide: make remaining built-in only IDE host drivers modular

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Bartlomiej Zolnierkiewicz wrote:

* Make remaining built-in only IDE host drivers modular, add ide-scan-pci.c
  file for probing PCI host drivers registered with IDE core (special case
  for built-in IDE and CONFIG_IDEPCI_PCIBUS_ORDER=y) and then take care of
  the ordering in which all IDE host drivers are probed when IDE is built-in
  during link time.

* Move probing of gayle, falconide, macide, q40ide and buddha (m68k arch
  specific) host drivers, before PCI ones (no PCI on m68k), ide-cris (cris
  arch specific), cmd640 (x86 arch specific) and pmac (ppc arch specific).

* Move probing of ide-cris (cris arch specific) host driver before cmd640
  (x86 arch specific).

* Move probing of mpc8xx (ppc specific) host driver before ide-pnp (depends
  on ISA and none of ppc platform that use mpc8xx supports ISA) and ide-h8300
  (h8300 arch specific).

* Add "probe_vlb" kernel parameter to cmd640 host driver and update
  Documentation/ide.txt accordingly.

* Make IDE_ARM config option visible so it can also be disabled if needed.

* Remove bogus comment from ide.c while at it.

Cc: Mikael Starvik <starvik@xxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Roman Zippel <zippel@xxxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>

[...]

Index: b/drivers/ide/h8300/ide-h8300.c
===================================================================
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
[...]
@@ -104,7 +104,7 @@ void __init h8300_ide_init(void)
 	hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]);
 	if (hwif == NULL) {
 		printk(KERN_ERR "ide-h8300: IDE I/F register failed\n");
-		return;
+		return -ENOMEM;
 	}

   ENOENT would seem more appropriate...

Index: b/drivers/ide/pci/cmd640.c
===================================================================
--- a/drivers/ide/pci/cmd640.c
+++ b/drivers/ide/pci/cmd640.c
@@ -706,9 +706,9 @@ static int pci_conf2(void)
 }
/*
- * Probe for a cmd640 chipset, and initialize it if found.  Called from ide.c
+ * Probe for a cmd640 chipset, and initialize it if found.
  */
-int __init ide_probe_for_cmd640x (void)
+static int __init cmd640x_init(void)
 {
 #ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
 	int second_port_toggled = 0;
@@ -883,3 +883,7 @@ int __init ide_probe_for_cmd640x (void)
 	return 1;
 }
+module_param_named(probe_vlb, cmd640_vlb, bool, 0);
+MODULE_PARM_DESC(probe, "probe for VLB version of CMD640 chipset");

   Shouldn't 'probe' be 'probe_vlb' here?

+
+module_init(cmd640x_init);

BTW, it's interesting why this driver still uses it's own home-grown PCI config. space access code? 8-)

MBR, Sergei
-
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