From: Greg KH <greg@kroah.com>
To: linux-kernel@vger.kernel.org
Cc: Kay Sievers <kay.sievers@vrfy.org>, Greg Kroah-Hartman <gregkh@suse.de>
Subject: [PATCH 36/36] Driver core: show drivers in /sys/module/
Date: Fri, 1 Dec 2006 15:22:06 -0800 [thread overview]
Message-ID: <1165015446780-git-send-email-greg@kroah.com> (raw)
In-Reply-To: <11650154423690-git-send-email-greg@kroah.com>
From: Kay Sievers <kay.sievers@vrfy.org>
Show the drivers, which belong to the module:
$ ls -l /sys/module/usbcore/drivers/
hub -> ../../../bus/usb/drivers/hub
usb -> ../../../bus/usb/drivers/usb
usbfs -> ../../../bus/usb/drivers/usbfs
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
include/linux/module.h | 1 +
kernel/module.c | 31 +++++++++++++++++++++++++------
2 files changed, 26 insertions(+), 6 deletions(-)
diff --git a/include/linux/module.h b/include/linux/module.h
index d1d00ce..9258ffd 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -264,6 +264,7 @@ struct module
struct module_attribute *modinfo_attrs;
const char *version;
const char *srcversion;
+ struct kobject *drivers_dir;
/* Exported symbols */
const struct kernel_symbol *syms;
diff --git a/kernel/module.c b/kernel/module.c
index f016656..45e01cb 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1086,22 +1086,35 @@ static int mod_sysfs_setup(struct module
goto out;
kobj_set_kset_s(&mod->mkobj, module_subsys);
mod->mkobj.mod = mod;
- err = kobject_register(&mod->mkobj.kobj);
+
+ /* delay uevent until full sysfs population */
+ kobject_init(&mod->mkobj.kobj);
+ err = kobject_add(&mod->mkobj.kobj);
if (err)
goto out;
+ mod->drivers_dir = kobject_add_dir(&mod->mkobj.kobj, "drivers");
+ if (!mod->drivers_dir)
+ goto out_unreg;
+
err = module_param_sysfs_setup(mod, kparam, num_params);
if (err)
- goto out_unreg;
+ goto out_unreg_drivers;
err = module_add_modinfo_attrs(mod);
if (err)
- goto out_unreg;
+ goto out_unreg_param;
+ kobject_uevent(&mod->mkobj.kobj, KOBJ_ADD);
return 0;
+out_unreg_drivers:
+ kobject_unregister(mod->drivers_dir);
+out_unreg_param:
+ module_param_sysfs_remove(mod);
out_unreg:
- kobject_unregister(&mod->mkobj.kobj);
+ kobject_del(&mod->mkobj.kobj);
+ kobject_put(&mod->mkobj.kobj);
out:
return err;
}
@@ -1110,6 +1123,7 @@ static void mod_kobject_remove(struct mo
{
module_remove_modinfo_attrs(mod);
module_param_sysfs_remove(mod);
+ kobject_unregister(mod->drivers_dir);
kobject_unregister(&mod->mkobj.kobj);
}
@@ -2275,11 +2289,14 @@ void print_modules(void)
void module_add_driver(struct module *mod, struct device_driver *drv)
{
+ int no_warn;
+
if (!mod || !drv)
return;
- /* Don't check return code; this call is idempotent */
- sysfs_create_link(&drv->kobj, &mod->mkobj.kobj, "module");
+ /* Don't check return codes; these calls are idempotent */
+ no_warn = sysfs_create_link(&drv->kobj, &mod->mkobj.kobj, "module");
+ no_warn = sysfs_create_link(mod->drivers_dir, &drv->kobj, drv->name);
}
EXPORT_SYMBOL(module_add_driver);
@@ -2288,6 +2305,8 @@ void module_remove_driver(struct device_
if (!drv)
return;
sysfs_remove_link(&drv->kobj, "module");
+ if (drv->owner && drv->owner->drivers_dir)
+ sysfs_remove_link(drv->owner->drivers_dir, drv->name);
}
EXPORT_SYMBOL(module_remove_driver);
--
1.4.4.1
next prev parent reply other threads:[~2006-12-01 23:25 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-01 23:16 [GIT PATCH] Driver core patches for 2.6.19 Greg KH
2006-12-01 23:21 ` [PATCH 1/36] Driver core: add notification of bus events Greg KH
2006-12-01 23:21 ` [PATCH 2/36] Driver core: fix "driver" symlink timing Greg KH
2006-12-01 23:21 ` [PATCH 3/36] Driver Core: Move virtual_device_parent() to core.c Greg KH
2006-12-01 23:21 ` [PATCH 4/36] CONFIG_SYSFS_DEPRECATED Greg KH
2006-12-01 23:21 ` [PATCH 5/36] Driver core: make old versions of udev work properly Greg KH
2006-12-01 23:21 ` [PATCH 6/36] CONFIG_SYSFS_DEPRECATED - bus symlinks Greg KH
2006-12-01 23:21 ` [PATCH 7/36] CONFIG_SYSFS_DEPRECATED - device symlinks Greg KH
2006-12-01 23:21 ` [PATCH 8/36] CONFIG_SYSFS_DEPRECATED - PHYSDEV* uevent variables Greg KH
2006-12-01 23:21 ` [PATCH 9/36] CONFIG_SYSFS_DEPRECATED - class symlinks Greg KH
2006-12-01 23:21 ` [PATCH 10/36] Driver core: convert vt code to use struct device Greg KH
2006-12-01 23:21 ` [PATCH 11/36] Driver core: convert vc " Greg KH
2006-12-01 23:21 ` [PATCH 12/36] Driver core: change misc class_devices to be real devices Greg KH
2006-12-01 23:21 ` [PATCH 13/36] Driver core: convert tty core to use struct device Greg KH
2006-12-01 23:21 ` [PATCH 14/36] Driver core: convert raw device code " Greg KH
2006-12-01 23:21 ` [PATCH 15/36] I2C: convert i2c-dev to use struct device instead of struct class_device Greg KH
2006-12-01 23:21 ` [PATCH 16/36] Driver core: convert msr code to use struct device Greg KH
2006-12-01 23:21 ` [PATCH 17/36] Driver core: convert cpuid " Greg KH
2006-12-01 23:21 ` [PATCH 18/36] Driver core: convert PPP " Greg KH
2006-12-01 23:21 ` [PATCH 19/36] Driver core: convert ppdev " Greg KH
2006-12-01 23:21 ` [PATCH 20/36] Driver core: convert mmc " Greg KH
2006-12-01 23:21 ` [PATCH 21/36] Driver core: convert firmware " Greg KH
2006-12-01 23:21 ` [PATCH 22/36] Driver core: convert fb " Greg KH
2006-12-01 23:21 ` [PATCH 23/36] Driver core: change mem class_devices to be real devices Greg KH
2006-12-01 23:21 ` [PATCH 24/36] Driver core: convert sound core to use struct device Greg KH
2006-12-01 23:21 ` [PATCH 25/36] Driver core: add dev_archdata to " Greg KH
2006-12-01 23:21 ` [PATCH 26/36] ACPI: Change ACPI to use dev_archdata instead of firmware_data Greg KH
2006-12-01 23:21 ` [PATCH 27/36] Driver core: Call platform_notify_remove later Greg KH
2006-12-01 23:21 ` [PATCH 28/36] cpu topology: consider sysfs_create_group return value Greg KH
2006-12-01 23:21 ` [PATCH 29/36] sysfs: sysfs_write_file() writes zero terminated data Greg KH
2006-12-01 23:22 ` [PATCH 30/36] driver core: Introduce device_find_child() Greg KH
2006-12-01 23:22 ` [PATCH 31/36] Driver core: make drivers/base/core.c:setup_parent() static Greg KH
2006-12-01 23:22 ` [PATCH 32/36] driver core: Introduce device_move(): move a device to a new parent Greg KH
2006-12-01 23:22 ` [PATCH 33/36] driver core: Use klist_remove() in device_move() Greg KH
2006-12-01 23:22 ` [PATCH 34/36] Driver core: platform_driver_probe(), can save codespace Greg KH
2006-12-01 23:22 ` [PATCH 35/36] Documentation/driver-model/platform.txt update/rewrite Greg KH
2006-12-01 23:22 ` Greg KH [this message]
2006-12-03 16:26 ` [PATCH 32/36] driver core: Introduce device_move(): move a device to a new parent Marcel Holtmann
2006-12-04 19:58 ` Greg KH
2006-12-04 21:15 ` Marcel Holtmann
2006-12-04 23:05 ` Greg KH
2006-12-05 15:26 ` Marcel Holtmann
2006-12-06 5:58 ` Greg KH
2006-12-06 8:29 ` Marcel Holtmann
2006-12-06 9:03 ` Martin Schwidefsky
2007-01-08 13:21 ` Cornelia Huck
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1165015446780-git-send-email-greg@kroah.com \
--to=greg@kroah.com \
--cc=gregkh@suse.de \
--cc=kay.sievers@vrfy.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).