[PATCH v2 12/17] drivers/firmware/sdei: Remove _sdei_event_register()
Gavin Shan
gshan at redhat.com
Wed Jul 22 05:57:35 EDT 2020
The function _sdei_event_register() is called by sdei_event_register()
and sdei_device_thaw() as the following functional call chain shows.
_sdei_event_register() covers the shared and privte events, but
sdei_device_thaw() only covers the shared events. So the logic to
cover the private events in _sdei_event_register() isn't needed by
sdei_device_thaw().
Similarly, sdei_reregister_event_llocked() covers the shared and
private events in the regard of reenablement. The logic to cover
the private events isn't needed by sdei_device_thaw() either.
sdei_event_register sdei_device_thaw
_sdei_event_register sdei_reregister_shared
sdei_reregister_event_llocked
_sdei_event_register
This removes _sdei_event_register() and sdei_reregister_event_llocked().
Their logic is moved to sdei_event_register() and sdei_reregister_shared().
This shouldn't cause any logicial changes.
Signed-off-by: Gavin Shan <gshan at redhat.com>
---
v2: Improved commit log
Drop changes to reorder the variables
---
drivers/firmware/arm_sdei.c | 77 ++++++++++++++-----------------------
1 file changed, 28 insertions(+), 49 deletions(-)
diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c
index da0e0d5591a8..f4cd9791242f 100644
--- a/drivers/firmware/arm_sdei.c
+++ b/drivers/firmware/arm_sdei.c
@@ -575,25 +575,6 @@ static void _local_event_register(void *data)
sdei_cross_call_return(arg, err);
}
-static int _sdei_event_register(struct sdei_event *event)
-{
- int err;
-
- lockdep_assert_held(&sdei_events_lock);
-
- if (event->type == SDEI_EVENT_TYPE_SHARED)
- return sdei_api_event_register(event->event_num,
- sdei_entry_point,
- event->registered,
- SDEI_EVENT_REGISTER_RM_ANY, 0);
-
- err = sdei_do_cross_call(_local_event_register, event);
- if (err)
- sdei_do_cross_call(_local_event_unregister, event);
-
- return err;
-}
-
int sdei_event_register(u32 event_num, sdei_event_callback *cb, void *arg)
{
int err;
@@ -616,7 +597,17 @@ int sdei_event_register(u32 event_num, sdei_event_callback *cb, void *arg)
}
cpus_read_lock();
- err = _sdei_event_register(event);
+ if (event->type == SDEI_EVENT_TYPE_SHARED) {
+ err = sdei_api_event_register(event->event_num,
+ sdei_entry_point,
+ event->registered,
+ SDEI_EVENT_REGISTER_RM_ANY, 0);
+ } else {
+ err = sdei_do_cross_call(_local_event_register, event);
+ if (err)
+ sdei_do_cross_call(_local_event_unregister, event);
+ }
+
if (err) {
sdei_event_destroy(event);
pr_warn("Failed to register event %u: %d\n", event_num, err);
@@ -633,33 +624,6 @@ int sdei_event_register(u32 event_num, sdei_event_callback *cb, void *arg)
return err;
}
-static int sdei_reregister_event_llocked(struct sdei_event *event)
-{
- int err;
-
- lockdep_assert_held(&sdei_events_lock);
- lockdep_assert_held(&sdei_list_lock);
-
- err = _sdei_event_register(event);
- if (err) {
- pr_err("Failed to re-register event %u\n", event->event_num);
- sdei_event_destroy_llocked(event);
- return err;
- }
-
- if (event->reenable) {
- if (event->type == SDEI_EVENT_TYPE_SHARED)
- err = sdei_api_event_enable(event->event_num);
- else
- err = sdei_do_cross_call(_local_event_enable, event);
- }
-
- if (err)
- pr_err("Failed to re-enable event %u\n", event->event_num);
-
- return err;
-}
-
static int sdei_reregister_shared(void)
{
int err = 0;
@@ -672,9 +636,24 @@ static int sdei_reregister_shared(void)
continue;
if (event->reregister) {
- err = sdei_reregister_event_llocked(event);
- if (err)
+ err = sdei_api_event_register(event->event_num,
+ sdei_entry_point, event->registered,
+ SDEI_EVENT_REGISTER_RM_ANY, 0);
+ if (err) {
+ sdei_event_destroy_llocked(event);
+ pr_err("Failed to re-register event %u\n",
+ event->event_num);
break;
+ }
+ }
+
+ if (event->reenable) {
+ err = sdei_api_event_enable(event->event_num);
+ if (err) {
+ pr_err("Failed to re-enable event %u\n",
+ event->event_num);
+ break;
+ }
}
}
spin_unlock(&sdei_list_lock);
--
2.23.0
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