diff options
author | Gavin Shan <gshan@redhat.com> | 2020-09-22 23:04:22 +1000 |
---|---|---|
committer | Will Deacon <will@kernel.org> | 2020-09-28 21:52:23 +0100 |
commit | d2fc580d2dcaf92863fbb194d4e70ef1383b92c4 (patch) | |
tree | c8604a958f5b66ee1ae8a6a5424ddf45300a73b2 | |
parent | f4673625a52c69a12d2a8f71bcf408c685c148ec (diff) | |
download | linux-d2fc580d2dcaf92863fbb194d4e70ef1383b92c4.tar.bz2 |
firmware: arm_sdei: Remove _sdei_event_register()
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 private 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 logical changes.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-13-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
-rw-r--r-- | drivers/firmware/arm_sdei.c | 77 |
1 files changed, 28 insertions, 49 deletions
diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c index cf1a37b40e24..361d142ad2a8 100644 --- a/drivers/firmware/arm_sdei.c +++ b/drivers/firmware/arm_sdei.c @@ -577,25 +577,6 @@ 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; @@ -618,7 +599,17 @@ 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); @@ -635,33 +626,6 @@ unlock: 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; @@ -674,9 +638,24 @@ 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) { + pr_err("Failed to re-register event %u\n", + event->event_num); + sdei_event_destroy_llocked(event); 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); |