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| author | David Brownell <david-b@pacbell.net> | 2005-05-12 12:06:27 -0700 |
|---|---|---|
| committer | Greg KH <gregkh@suse.de> | 2005-05-17 14:54:55 -0700 |
| commit | 0b405a0f7e4d4d18fd1fe46ddf5ff465443036ab (patch) | |
| tree | 49d74df6eddfdd095c650e0af34cde7f4548a2d5 /Documentation/filesystems | |
| parent | 82428b62aa6294ea640c7e920a9224ecaf46db65 (diff) | |
| download | lwn-0b405a0f7e4d4d18fd1fe46ddf5ff465443036ab.tar.gz lwn-0b405a0f7e4d4d18fd1fe46ddf5ff465443036ab.zip | |
[PATCH] Driver Core: remove driver model detach_state
The driver model has a "detach_state" mechanism that:
- Has never been used by any in-kernel drive;
- Is superfluous, since driver remove() methods can do the same thing;
- Became buggy when the suspend() parameter changed semantics and type;
- Could self-deadlock when called from certain suspend contexts;
- Is effectively wasted documentation, object code, and headspace.
This removes that "detach_state" mechanism; net code shrink, as well
as a per-device saving in the driver model and sysfs.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/sysfs-pci.txt | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/Documentation/filesystems/sysfs-pci.txt b/Documentation/filesystems/sysfs-pci.txt index e97d024eae77..988a62fae11f 100644 --- a/Documentation/filesystems/sysfs-pci.txt +++ b/Documentation/filesystems/sysfs-pci.txt @@ -7,7 +7,6 @@ that support it. For example, a given bus might look like this: |-- 0000:17:00.0 | |-- class | |-- config - | |-- detach_state | |-- device | |-- irq | |-- local_cpus @@ -19,7 +18,7 @@ that support it. For example, a given bus might look like this: | |-- subsystem_device | |-- subsystem_vendor | `-- vendor - `-- detach_state + `-- ... The topmost element describes the PCI domain and bus number. In this case, the domain number is 0000 and the bus number is 17 (both values are in hex). @@ -31,7 +30,6 @@ files, each with their own function. ---- -------- class PCI class (ascii, ro) config PCI config space (binary, rw) - detach_state connection status (bool, rw) device PCI device (ascii, ro) irq IRQ number (ascii, ro) local_cpus nearby CPU mask (cpumask, ro) @@ -85,4 +83,4 @@ useful return codes should be provided. Legacy resources are protected by the HAVE_PCI_LEGACY define. Platforms wishing to support legacy functionality should define it and provide -pci_legacy_read, pci_legacy_write and pci_mmap_legacy_page_range functions.
\ No newline at end of file +pci_legacy_read, pci_legacy_write and pci_mmap_legacy_page_range functions. |