diff options
| author | Holger Dengler <dengler@linux.ibm.com> | 2024-02-19 18:10:19 +0100 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2024-04-09 17:29:56 +0200 |
| commit | 123760841a2e5977d4e97f86999b3784df58801d (patch) | |
| tree | 01f5270ebfba9fb2d6517df2105f0bf136bc0fa9 /drivers/s390/crypto/ap_bus.c | |
| parent | 2a483d333fd84acc009c7199fdd962af3ffc6b3b (diff) | |
s390/ap: modularize ap bus
There is no hard requirement to have the ap bus statically in the
kernel, so add an option to compile it as module.
Cc: Tony Krowiak <akrowiak@linux.ibm.com>
Cc: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Holger Dengler <dengler@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Anthony Krowiak <akrowiak@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'drivers/s390/crypto/ap_bus.c')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 9284ae63074d..09059b3a3a42 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -44,9 +44,10 @@ #include "ap_bus.h" #include "ap_debug.h" -/* - * Module parameters; note though this file itself isn't modular. - */ +MODULE_AUTHOR("IBM Corporation"); +MODULE_DESCRIPTION("Adjunct Processor Bus driver"); +MODULE_LICENSE("GPL"); + int ap_domain_index = -1; /* Adjunct Processor Domain Index */ static DEFINE_SPINLOCK(ap_domain_lock); module_param_named(domain, ap_domain_index, int, 0440); @@ -2284,6 +2285,16 @@ static void ap_scan_bus_wq_callback(struct work_struct *unused) } } +static inline void __exit ap_async_exit(void) +{ + if (ap_thread_flag) + ap_poll_thread_stop(); + chsc_notifier_unregister(&ap_bus_nb); + cancel_work(&ap_scan_bus_work); + hrtimer_cancel(&ap_poll_timer); + timer_delete(&ap_scan_bus_timer); +} + static inline int __init ap_async_init(void) { int rc; @@ -2451,4 +2462,15 @@ out: ap_debug_exit(); return rc; } -device_initcall(ap_module_init); + +static void __exit ap_module_exit(void) +{ + ap_async_exit(); + ap_irq_exit(); + root_device_unregister(ap_root_device); + bus_unregister(&ap_bus_type); + ap_debug_exit(); +} + +module_init(ap_module_init); +module_exit(ap_module_exit); |