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xen: Remove some deadcode (x)

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Remove three uncalled functions:

  xenbus_mkdir() was added in 2007 by
commit 4bac07c993 ("xen: add the Xenbus sysfs and virtual device hotplug
driver")
but has remained unused.

  xen_get_runstate_snapshot() last use was removed in 2016 by
commit 6ba286ad84 ("xen: support runqueue steal time on xen")
which replaces the use by the _cpu version.

  xen_resume_notifier_unregister() last use was removed in 2017 by
commit 1914f0cd20 ("xen/acpi: upload PM state from init-domain to Xen")

Remove them.

Signed-off-by: "Dr. David Alan Gilbert" <linux@treblig.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Message-ID: <20250713132625.164728-1-linux@treblig.org>
This commit is contained in:
Dr. David Alan Gilbert 2025-07-13 14:26:25 +01:00 committed by Juergen Gross
parent c79626899d
commit 0df1195009
5 changed files with 0 additions and 35 deletions
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6
drivers/xen/manage.c
View File

@ -52,12 +52,6 @@ void xen_resume_notifier_register(struct notifier_block *nb)
}
EXPORT_SYMBOL_GPL(xen_resume_notifier_register);
void xen_resume_notifier_unregister(struct notifier_block *nb)
{
raw_notifier_chain_unregister(&xen_resume_notifier, nb);
}
EXPORT_SYMBOL_GPL(xen_resume_notifier_unregister);
#ifdef CONFIG_HIBERNATE_CALLBACKS
static int xen_suspend(void *data)
{

8
drivers/xen/time.c
View File

@ -136,14 +136,6 @@ void xen_manage_runstate_time(int action)
}
}
/*
* Runstate accounting
*/
void xen_get_runstate_snapshot(struct vcpu_runstate_info *res)
{
xen_get_runstate_snapshot_cpu(res, smp_processor_id());
}
/* return true when a vcpu could run but has no real cpu to run on */
bool xen_vcpu_stolen(int vcpu)
{

17
drivers/xen/xenbus/xenbus_xs.c
View File

@ -512,23 +512,6 @@ int xenbus_write(struct xenbus_transaction t,
}
EXPORT_SYMBOL_GPL(xenbus_write);
/* Create a new directory. */
int xenbus_mkdir(struct xenbus_transaction t,
const char *dir, const char *node)
{
char *path;
int ret;
path = join(dir, node);
if (IS_ERR(path))
return PTR_ERR(path);
ret = xs_error(xs_single(t, XS_MKDIR, path, NULL));
kfree(path);
return ret;
}
EXPORT_SYMBOL_GPL(xenbus_mkdir);
/* Destroy a file or directory (directories must be empty). */
int xenbus_rm(struct xenbus_transaction t, const char *dir, const char *node)
{

2
include/xen/xen-ops.h
View File

@ -30,13 +30,11 @@ void xen_arch_suspend(void);
void xen_reboot(int reason);
void xen_resume_notifier_register(struct notifier_block *nb);
void xen_resume_notifier_unregister(struct notifier_block *nb);
bool xen_vcpu_stolen(int vcpu);
void xen_setup_runstate_info(int cpu);
void xen_time_setup_guest(void);
void xen_manage_runstate_time(int action);
void xen_get_runstate_snapshot(struct vcpu_runstate_info *res);
u64 xen_steal_clock(int cpu);
int xen_setup_shutdown_event(void);

2
include/xen/xenbus.h
View File

@ -154,8 +154,6 @@ void *xenbus_read(struct xenbus_transaction t,
const char *dir, const char *node, unsigned int *len);
int xenbus_write(struct xenbus_transaction t,
const char *dir, const char *node, const char *string);
int xenbus_mkdir(struct xenbus_transaction t,
const char *dir, const char *node);
int xenbus_exists(struct xenbus_transaction t,
const char *dir, const char *node);
int xenbus_rm(struct xenbus_transaction t, const char *dir, const char *node);