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Message-Id: <1371265368-7334-1-git-send-email-liuj97@gmail.com>
Date: Sat, 15 Jun 2013 11:02:48 +0800
From: Liu Jiang <liuj97@...il.com>
To: Tejun Heo <tj@...nel.org>
Cc: Liu Jiang <liu97@...il.com>, Matthew Garrett <mjg@...hat.com>,
Aaron Lu <aaron.lu@...el.com>, linux-ide@...r.kernel.org,
linux-kernel@...r.kernel.org, Liu Jiang <jiang.liu@...wei.com>
Subject: [PATCH] libata: remove dead code from libata-acpi.c
From: Liu Jiang <liu97@...il.com>
Commit 30dcf76acc69 "libata: migrate ACPI code over to new bindings"
removed ACPI dock notification related code, but there's some dead
code left, so clean up it.
Cc: Tejun Heo <tj@...nel.org>
Cc: Matthew Garrett <mjg@...hat.com>
Cc: Aaron Lu <aaron.lu@...el.com>
Cc: linux-ide@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Liu Jiang <jiang.liu@...wei.com>
---
drivers/ata/libata-acpi.c | 123 ----------------------------------------------
1 file changed, 123 deletions(-)
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index 87f2f39..e50c987 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -91,129 +91,6 @@ acpi_handle ata_dev_acpi_handle(struct ata_device *dev)
}
EXPORT_SYMBOL(ata_dev_acpi_handle);
-/* @ap and @dev are the same as ata_acpi_handle_hotplug() */
-static void ata_acpi_detach_device(struct ata_port *ap, struct ata_device *dev)
-{
- if (dev)
- dev->flags |= ATA_DFLAG_DETACH;
- else {
- struct ata_link *tlink;
- struct ata_device *tdev;
-
- ata_for_each_link(tlink, ap, EDGE)
- ata_for_each_dev(tdev, tlink, ALL)
- tdev->flags |= ATA_DFLAG_DETACH;
- }
-
- ata_port_schedule_eh(ap);
-}
-
-/**
- * ata_acpi_handle_hotplug - ACPI event handler backend
- * @ap: ATA port ACPI event occurred
- * @dev: ATA device ACPI event occurred (can be NULL)
- * @event: ACPI event which occurred
- *
- * All ACPI bay / device realted events end up in this function. If
- * the event is port-wide @dev is NULL. If the event is specific to a
- * device, @dev points to it.
- *
- * Hotplug (as opposed to unplug) notification is always handled as
- * port-wide while unplug only kills the target device on device-wide
- * event.
- *
- * LOCKING:
- * ACPI notify handler context. May sleep.
- */
-static void ata_acpi_handle_hotplug(struct ata_port *ap, struct ata_device *dev,
- u32 event)
-{
- struct ata_eh_info *ehi = &ap->link.eh_info;
- int wait = 0;
- unsigned long flags;
-
- spin_lock_irqsave(ap->lock, flags);
- /*
- * When dock driver calls into the routine, it will always use
- * ACPI_NOTIFY_BUS_CHECK/ACPI_NOTIFY_DEVICE_CHECK for add and
- * ACPI_NOTIFY_EJECT_REQUEST for remove
- */
- switch (event) {
- case ACPI_NOTIFY_BUS_CHECK:
- case ACPI_NOTIFY_DEVICE_CHECK:
- ata_ehi_push_desc(ehi, "ACPI event");
-
- ata_ehi_hotplugged(ehi);
- ata_port_freeze(ap);
- break;
- case ACPI_NOTIFY_EJECT_REQUEST:
- ata_ehi_push_desc(ehi, "ACPI event");
-
- ata_acpi_detach_device(ap, dev);
- wait = 1;
- break;
- }
-
- spin_unlock_irqrestore(ap->lock, flags);
-
- if (wait)
- ata_port_wait_eh(ap);
-}
-
-static void ata_acpi_dev_notify_dock(acpi_handle handle, u32 event, void *data)
-{
- struct ata_device *dev = data;
-
- ata_acpi_handle_hotplug(dev->link->ap, dev, event);
-}
-
-static void ata_acpi_ap_notify_dock(acpi_handle handle, u32 event, void *data)
-{
- struct ata_port *ap = data;
-
- ata_acpi_handle_hotplug(ap, NULL, event);
-}
-
-static void ata_acpi_uevent(struct ata_port *ap, struct ata_device *dev,
- u32 event)
-{
- struct kobject *kobj = NULL;
- char event_string[20];
- char *envp[] = { event_string, NULL };
-
- if (dev) {
- if (dev->sdev)
- kobj = &dev->sdev->sdev_gendev.kobj;
- } else
- kobj = &ap->dev->kobj;
-
- if (kobj) {
- snprintf(event_string, 20, "BAY_EVENT=%d", event);
- kobject_uevent_env(kobj, KOBJ_CHANGE, envp);
- }
-}
-
-static void ata_acpi_ap_uevent(acpi_handle handle, u32 event, void *data)
-{
- ata_acpi_uevent(data, NULL, event);
-}
-
-static void ata_acpi_dev_uevent(acpi_handle handle, u32 event, void *data)
-{
- struct ata_device *dev = data;
- ata_acpi_uevent(dev->link->ap, dev, event);
-}
-
-static const struct acpi_dock_ops ata_acpi_dev_dock_ops = {
- .handler = ata_acpi_dev_notify_dock,
- .uevent = ata_acpi_dev_uevent,
-};
-
-static const struct acpi_dock_ops ata_acpi_ap_dock_ops = {
- .handler = ata_acpi_ap_notify_dock,
- .uevent = ata_acpi_ap_uevent,
-};
-
/**
* ata_acpi_dissociate - dissociate ATA host from ACPI objects
* @host: target ATA host
--
1.8.1.2
--
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