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xen: Use evtchn_type_t as a type for event channels

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Make event channel functions pass event channel port using
evtchn_port_t type. It eliminates signed <-> unsigned conversion.

Signed-off-by: Yan Yankovskyi <yyankovskyi@gmail.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20200323152343.GA28422@kbp1-lhp-F74019
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
Yan Yankovskyi
2020-03-23 18:15:11 +02:00
committed by Juergen Gross
parent c3881eb58d
commit 0102e4efda
15 changed files with 128 additions and 116 deletions
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6
drivers/xen/xenbus/xenbus_client.c
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@@ -391,7 +391,7 @@ EXPORT_SYMBOL_GPL(xenbus_grant_ring);
* error, the device will switch to XenbusStateClosing, and the error will be
* saved in the store.
*/
int xenbus_alloc_evtchn(struct xenbus_device *dev, int *port)
int xenbus_alloc_evtchn(struct xenbus_device *dev, evtchn_port_t *port)
{
struct evtchn_alloc_unbound alloc_unbound;
int err;
@@ -414,7 +414,7 @@ EXPORT_SYMBOL_GPL(xenbus_alloc_evtchn);
/**
* Free an existing event channel. Returns 0 on success or -errno on error.
*/
int xenbus_free_evtchn(struct xenbus_device *dev, int port)
int xenbus_free_evtchn(struct xenbus_device *dev, evtchn_port_t port)
{
struct evtchn_close close;
int err;
@@ -423,7 +423,7 @@ int xenbus_free_evtchn(struct xenbus_device *dev, int port)
err = HYPERVISOR_event_channel_op(EVTCHNOP_close, &close);
if (err)
xenbus_dev_error(dev, err, "freeing event channel %d", port);
xenbus_dev_error(dev, err, "freeing event channel %u", port);
return err;
}