From: "Adam J. Richter" <adam@yggdrasil.com>
To: andre@linux-ide.org, alan@lxorguk.ukuu.org.uk, axboe@suse.de
Cc: linux-kernel@vger.kernel.org
Subject: Patch: linux-2.5.41/drivers/ide - build IDE as a module
Date: Thu, 10 Oct 2002 06:44:58 -0700 [thread overview]
Message-ID: <20021010064457.A460@baldur.yggdrasil.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 1300 bytes --]
The following patch seems to fix building IDE as a module
in 2.5.41. I am running this code on the machine that I'm using to
compose this email.
A couple of notes:
1. For the time being, I have reassembled some of the
drivers/ide object files into ide-mod.o again, because there are some
circular references (not necessarily a bad thing) that modprobe cannot
otherwise handle. For now, this includes putting ide-probe in
ide-mod.
2. I have changed cmd640.o and legacy.o from dep_bool to
dep_tristate and made them also depend on $CONFIG_BLK_DEV_IDE, so
that they will only be offered as modules if ide-mod.o is a
module (since, like any IDE driver, they require some symbols in
ide-mod.o).
These changes are probably not perfect, but I think they
should be an improvement with no real disadvantages in comparison to
what they replace, so I would encourage you to integrate the changes
if you see no problem. Please let me know what you want to do, or if
there is something more you'd like me to do regarding this patch.
--
Adam J. Richter __ ______________ 575 Oroville Road
adam@yggdrasil.com \ / Milpitas, California 95035
+1 408 309-6081 | g g d r a s i l United States of America
"Free Software For The Rest Of Us."
[-- Attachment #2: ide.diffs --]
[-- Type: text/plain, Size: 7912 bytes --]
diff -u -r linux-2.5.41/drivers/ide/Config.in linux/drivers/ide/Config.in
--- linux-2.5.41/drivers/ide/Config.in 2002-10-07 11:23:27.000000000 -0700
+++ linux/drivers/ide/Config.in 2002-10-10 06:25:31.000000000 -0700
@@ -27,13 +27,13 @@
comment 'IDE chipset support/bugfixes'
if [ "$CONFIG_BLK_DEV_IDE" != "n" ]; then
- dep_bool ' CMD640 chipset bugfix/support' CONFIG_BLK_DEV_CMD640 $CONFIG_X86
+ dep_tristate ' CMD640 chipset bugfix/support' CONFIG_BLK_DEV_CMD640 $CONFIG_X86 $CONFIG_BLK_DEV_IDE
dep_bool ' CMD640 enhanced support' CONFIG_BLK_DEV_CMD640_ENHANCED $CONFIG_BLK_DEV_CMD640
dep_bool ' ISA-PNP EIDE support' CONFIG_BLK_DEV_ISAPNP $CONFIG_ISAPNP
if [ "$CONFIG_PCI" = "y" ]; then
bool ' PCI IDE chipset support' CONFIG_BLK_DEV_IDEPCI
if [ "$CONFIG_BLK_DEV_IDEPCI" = "y" ]; then
- dep_bool ' Generic PCI IDE Chipset Support' CONFIG_BLK_DEV_GENERIC $CONFIG_BLK_DEV_IDEPCI
+ dep_tristate ' Generic PCI IDE Chipset Support' CONFIG_BLK_DEV_GENERIC $CONFIG_BLK_DEV_IDEPCI $CONFIG_BLK_DEV_IDE
bool ' Sharing PCI IDE interrupts support' CONFIG_IDEPCI_SHARE_IRQ
bool ' Generic PCI bus-master DMA support' CONFIG_BLK_DEV_IDEDMA_PCI
bool ' Boot off-board chipsets first support' CONFIG_BLK_DEV_OFFBOARD
diff -u -r linux-2.5.41/drivers/ide/Makefile linux/drivers/ide/Makefile
--- linux-2.5.41/drivers/ide/Makefile 2002-10-07 11:24:36.000000000 -0700
+++ linux/drivers/ide/Makefile 2002-10-08 05:34:20.000000000 -0700
@@ -14,19 +14,20 @@
# Core IDE code - must come before legacy
-obj-$(CONFIG_BLK_DEV_IDE) += ide-probe.o ide-geometry.o ide-iops.o ide-taskfile.o ide.o ide-lib.o
+ide-mod-objs := ide.o ide-iops.o ide-taskfile.o ide-probe.o ide-geometry.o ide-lib.o
+obj-$(CONFIG_BLK_DEV_IDE) += ide-mod.o
+obj-$(CONFIG_BLK_DEV_IDE) += ide-mod.o
obj-$(CONFIG_BLK_DEV_IDEDISK) += ide-disk.o
obj-$(CONFIG_BLK_DEV_IDECD) += ide-cd.o
obj-$(CONFIG_BLK_DEV_IDETAPE) += ide-tape.o
obj-$(CONFIG_BLK_DEV_IDEFLOPPY) += ide-floppy.o
-obj-$(CONFIG_BLK_DEV_IDEPCI) += setup-pci.o
-obj-$(CONFIG_BLK_DEV_IDEDMA_PCI) += ide-dma.o
-obj-$(CONFIG_BLK_DEV_ISAPNP) += ide-pnp.o
-
-ifeq ($(CONFIG_BLK_DEV_IDE),y)
-obj-$(CONFIG_PROC_FS) += ide-proc.o
-endif
+obj-ide-$(CONFIG_BLK_DEV_IDEPCI) += setup-pci.o
+obj-ide-$(CONFIG_BLK_DEV_IDEDMA_PCI) += ide-dma.o
+obj-ide-$(CONFIG_BLK_DEV_ISAPNP) += ide-pnp.o
+obj-ide-$(CONFIG_PROC_FS) += ide-proc.o
+ide-mod-objs += $(obj-ide-y)
+
obj-$(CONFIG_BLK_DEV_IDE) += legacy/ ppc/ arm/
diff -u -r linux-2.5.41/drivers/ide/ide-pnp.c linux/drivers/ide/ide-pnp.c
--- linux-2.5.41/drivers/ide/ide-pnp.c 2002-10-07 11:24:41.000000000 -0700
+++ linux/drivers/ide/ide-pnp.c 2002-10-07 18:45:37.000000000 -0700
@@ -19,6 +19,7 @@
#include <linux/ide.h>
#include <linux/init.h>
+#include <linux/module.h>
#include <linux/isapnp.h>
#define DEV_IO(dev, index) (dev->resource[index].start)
@@ -88,6 +89,18 @@
{ 0 }
};
+#ifdef MODULE
+static struct isapnp_card_id ide_isa_ids[] __initdata = {
+ {
+ card_vendor: ISAPNP_ANY_ID,
+ card_device: ISAPNP_ANY_ID,
+ devs: { ISAPNP_DEVICE_ID('P', 'N', 'P', 0x0600) },
+ },
+ { ISAPNP_CARD_END }
+};
+ISAPNP_CARD_TABLE(ide_isa_ids);
+#endif
+
#define NR_PNP_DEVICES 8
struct pnp_dev_inst {
struct pci_dev *dev;
diff -u -r linux-2.5.41/drivers/ide/ide-probe.c linux/drivers/ide/ide-probe.c
--- linux-2.5.41/drivers/ide/ide-probe.c 2002-10-07 11:24:39.000000000 -0700
+++ linux/drivers/ide/ide-probe.c 2002-10-08 05:34:20.000000000 -0700
@@ -1126,10 +1126,10 @@
return 0;
}
-#ifdef MODULE
-extern int (*ide_xlate_1024_hook)(kdev_t, int, int, const char *);
+int (*ide_xlate_1024_hook)(kdev_t, int, int, const char *);
+EXPORT_SYMBOL(ide_xlate_1024_hook);
-int init_module (void)
+int ide_probe_init (void)
{
unsigned int index;
@@ -1141,10 +1141,9 @@
return 0;
}
-void cleanup_module (void)
+void ide_probe_cleanup (void)
{
ide_probe = NULL;
ide_xlate_1024_hook = 0;
}
MODULE_LICENSE("GPL");
-#endif /* MODULE */
diff -u -r linux-2.5.41/drivers/ide/ide.c linux/drivers/ide/ide.c
--- linux-2.5.41/drivers/ide/ide.c 2002-10-07 11:24:00.000000000 -0700
+++ linux/drivers/ide/ide.c 2002-10-10 06:32:04.000000000 -0700
@@ -197,6 +197,9 @@
EXPORT_SYMBOL(noautodma);
+int cmd640_vlb; /* = 0, flag for cmd640.c */
+EXPORT_SYMBOL(cmd640_vlb);
+
/*
* ide_modules keeps track of the available IDE chipset/probe/driver modules.
*/
@@ -3006,7 +3009,6 @@
#ifdef CONFIG_BLK_DEV_CMD640
case -14: /* "cmd640_vlb" */
{
- extern int cmd640_vlb; /* flag for cmd640.c */
cmd640_vlb = 1;
goto done;
}
@@ -3123,12 +3125,6 @@
init_e100_ide();
}
#endif /* CONFIG_ETRAX_IDE */
-#ifdef CONFIG_BLK_DEV_CMD640
- {
- extern void ide_probe_for_cmd640x(void);
- ide_probe_for_cmd640x();
- }
-#endif /* CONFIG_BLK_DEV_CMD640 */
#ifdef CONFIG_BLK_DEV_PDC4030
{
extern int ide_probe_for_pdc4030(void);
@@ -3514,13 +3510,38 @@
struct bus_type ide_bus_type = {
.name = "ide",
};
+EXPORT_SYMBOL(ide_bus_type);
+
+#ifdef MODULE
+static char *options = NULL;
+MODULE_PARM(options,"s");
+MODULE_LICENSE("GPL");
+
+static void __init parse_options (char *line)
+{
+ char *next = line;
+
+ if (line == NULL || !*line)
+ return;
+ while ((line = next) != NULL) {
+ if ((next = strchr(line,' ')) != NULL)
+ *next++ = 0;
+ if (!ide_setup(line))
+ printk ("Unknown option '%s'\n", line);
+ }
+}
+#endif /* MODULE */
/*
* This is gets invoked once during initialization, to set *everything* up
*/
int __init ide_init (void)
{
+ extern int ide_probe_init(void);
static char banner_printed;
+#ifdef MODULE
+ parse_options(options);
+#endif
if (!banner_printed) {
printk(KERN_INFO "Uniform Multi-Platform E-IDE driver " REVISION "\n");
ide_devfs_handle = devfs_mk_dir(NULL, "ide", NULL);
@@ -3537,40 +3558,17 @@
initializing = 0;
register_reboot_notifier(&ide_notifier);
- return 0;
+ return ide_probe_init();
}
module_init(ide_init);
-#ifdef MODULE
-char *options = NULL;
-MODULE_PARM(options,"s");
-MODULE_LICENSE("GPL");
-
-static void __init parse_options (char *line)
-{
- char *next = line;
-
- if (line == NULL || !*line)
- return;
- while ((line = next) != NULL) {
- if ((next = strchr(line,' ')) != NULL)
- *next++ = 0;
- if (!ide_setup(line))
- printk ("Unknown option '%s'\n", line);
- }
-}
-
-int init_module (void)
-{
- parse_options(options);
- return ide_init();
-}
-
-void cleanup_module (void)
+static void __exit ide_cleanup (void)
{
int index;
+ extern void ide_probe_cleanup(void);
+ ide_probe_cleanup();
unregister_reboot_notifier(&ide_notifier);
for (index = 0; index < MAX_HWIFS; ++index) {
ide_unregister(index);
@@ -3585,11 +3583,8 @@
#endif
devfs_unregister (ide_devfs_handle);
- bus_unregister(&ide_bus_type);
+ put_bus(&ide_bus_type);
}
-
-#else /* !MODULE */
+module_exit(ide_cleanup);
__setup("", ide_setup);
-
-#endif /* MODULE */
diff -u -r linux-2.5.41/drivers/ide/pci/cmd640.c linux/drivers/ide/pci/cmd640.c
--- linux-2.5.41/drivers/ide/pci/cmd640.c 2002-10-07 11:25:15.000000000 -0700
+++ linux/drivers/ide/pci/cmd640.c 2002-10-10 06:25:31.000000000 -0700
@@ -102,6 +102,7 @@
#define CMD640_PREFETCH_MASKS 1
#include <linux/config.h>
+#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/delay.h>
@@ -120,7 +121,7 @@
/*
* This flag is set in ide.c by the parameter: ide0=cmd640_vlb
*/
-int cmd640_vlb = 0;
+extern int cmd640_vlb;
/*
* CMD640 specific registers definition.
@@ -723,7 +724,7 @@
/*
* Probe for a cmd640 chipset, and initialize it if found. Called from ide.c
*/
-int __init ide_probe_for_cmd640x (void)
+static int ide_probe_for_cmd640x (void)
{
#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
int second_port_toggled = 0;
@@ -883,4 +884,4 @@
#endif
return 1;
}
-
+module_init(ide_probe_for_cmd640x);
next reply other threads:[~2002-10-10 13:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-10 13:44 Adam J. Richter [this message]
2002-10-10 14:18 ` Patch: linux-2.5.41/drivers/ide - build IDE as a module Alan Cox
2002-10-10 14:26 ` Adam J. Richter
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