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xen/xenstore: remove unused functions

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Those helpers are not used, so remove them. No functional change.

Sponsored by:	Citrix Systems R&D
MFC after:	3 days
This commit is contained in:
Roger Pau Monné 2020-11-26 09:57:47 +01:00
parent 509a006205
commit 2ae75536d3
2 changed files with 0 additions and 98 deletions
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42
sys/xen/xenbus/xenbus.c
View File

@ -102,48 +102,6 @@ xenbus_strstate(XenbusState state)
return ((state < (XenbusStateClosed + 1)) ? name[state] : "INVALID");
}
int
xenbus_watch_path(device_t dev, char *path, struct xs_watch *watch,
xs_watch_cb_t *callback, uintptr_t callback_data)
{
int error;
watch->node = path;
watch->callback = callback;
watch->callback_data = callback_data;
error = xs_register_watch(watch);
if (error) {
watch->node = NULL;
watch->callback = NULL;
xenbus_dev_fatal(dev, error, "adding watch on %s", path);
}
return (error);
}
int
xenbus_watch_path2(device_t dev, const char *path,
const char *path2, struct xs_watch *watch,
xs_watch_cb_t *callback, uintptr_t callback_data)
{
int error;
char *state = malloc(strlen(path) + 1 + strlen(path2) + 1,
M_XENBUS, M_WAITOK);
strcpy(state, path);
strcat(state, "/");
strcat(state, path2);
error = xenbus_watch_path(dev, state, watch, callback, callback_data);
if (error) {
free(state,M_XENBUS);
}
return (error);
}
void
xenbus_dev_verror(device_t dev, int err, const char *fmt, va_list ap)
{

56
sys/xen/xenbus/xenbusvar.h
View File

@ -123,62 +123,6 @@ xenbus_get_otherend_state(device_t dev)
return (xenbus_read_driver_state(xenbus_get_otherend_path(dev)));
}
/**
* Initialize and register a watch on the given path (client suplied storage).
*
* \param dev The XenBus device requesting the watch service.
* \param path The XenStore path of the object to be watched. The
* storage for this string must be stable for the lifetime
* of the watch.
* \param watch The watch object to use for this request. This object
* must be stable for the lifetime of the watch.
* \param callback The function to call when XenStore objects at or below
* path are modified.
* \param cb_data Client data that can be retrieved from the watch object
* during the callback.
*
* \return On success, 0. Otherwise an errno value indicating the
* type of failure.
*
* \note On error, the device 'dev' will be switched to the XenbusStateClosing
* state and the returned error is saved in the per-device error node
* for dev in the XenStore.
*/
int xenbus_watch_path(device_t dev, char *path,
struct xs_watch *watch,
xs_watch_cb_t *callback,
uintptr_t cb_data);
/**
* Initialize and register a watch at path/path2 in the XenStore.
*
* \param dev The XenBus device requesting the watch service.
* \param path The base XenStore path of the object to be watched.
* \param path2 The tail XenStore path of the object to be watched.
* \param watch The watch object to use for this request. This object
* must be stable for the lifetime of the watch.
* \param callback The function to call when XenStore objects at or below
* path are modified.
* \param cb_data Client data that can be retrieved from the watch object
* during the callback.
*
* \return On success, 0. Otherwise an errno value indicating the
* type of failure.
*
* \note On error, \a dev will be switched to the XenbusStateClosing
* state and the returned error is saved in the per-device error node
* for \a dev in the XenStore.
*
* Similar to xenbus_watch_path, however the storage for the path to the
* watched object is allocated from the heap and filled with "path '/' path2".
* Should a call to this function succeed, it is the callers responsibility
* to free watch->node using the M_XENBUS malloc type.
*/
int xenbus_watch_path2(device_t dev, const char *path,
const char *path2, struct xs_watch *watch,
xs_watch_cb_t *callback,
uintptr_t cb_data);
/**
* Grant access to the given ring_mfn to the peer of the given device.
*