kernel: remove unused workqueue

kernel/ksu.c

@@ -17,49 +17,10 @@
 #include <linux/susfs.h>
 #endif
 
-#ifdef CONFIG_KSU_CMDLINE
-#include <linux/init.h>
-
-// use get_ksu_state()!
-unsigned int enable_kernelsu = 1; // enabled by default
-static int __init read_kernelsu_state(char *s)
-{
-    if (s)
-        enable_kernelsu = simple_strtoul(s, NULL, 0);
-    return 1;
-}
-__setup("kernelsu.enabled=", read_kernelsu_state);
-
-bool get_ksu_state(void) { return enable_kernelsu >= 1; }
-#else
-bool get_ksu_state(void) { return true; }
-#endif /* CONFIG_KSU_CMDLINE */
-
-static struct workqueue_struct *ksu_workqueue;
-
-bool ksu_queue_work(struct work_struct *work)
-{
-    return queue_work(ksu_workqueue, work);
-}
-
-extern int ksu_handle_execveat_sucompat(int *fd, struct filename **filename_ptr,
-                    void *argv, void *envp, int *flags);
-
-extern int ksu_handle_execveat_ksud(int *fd, struct filename **filename_ptr,
-                    void *argv, void *envp, int *flags);
-
-int ksu_handle_execveat(int *fd, struct filename **filename_ptr, void *argv,
-            void *envp, int *flags)
-{
-    ksu_handle_execveat_ksud(fd, filename_ptr, argv, envp, flags);
-    return ksu_handle_execveat_sucompat(fd, filename_ptr, argv, envp,
-                        flags);
-}
-
-extern void ksu_sucompat_init(void);
-extern void ksu_sucompat_exit(void);
-extern void ksu_ksud_init(void);
-extern void ksu_ksud_exit(void);
+extern void ksu_sucompat_init();
+extern void ksu_sucompat_exit();
+extern void ksu_ksud_init();
+extern void ksu_ksud_exit();
 extern void ksu_supercalls_init();
 
 int __init kernelsu_init(void)
@@ -67,13 +28,6 @@ int __init kernelsu_init(void)
     pr_info("kernelsu.enabled=%d\n",
         (int)get_ksu_state());
 
-#ifdef CONFIG_KSU_CMDLINE
-    if (!get_ksu_state()) {
-        pr_info_once("drivers is disabled.");
-        return 0;
-    }
-#endif
-
 #ifdef CONFIG_KSU_DEBUG
     pr_alert("*************************************************************");
     pr_alert("**     NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE    **");
@@ -94,15 +48,12 @@ int __init kernelsu_init(void)
 
     ksu_core_init();
 
-    ksu_workqueue = alloc_ordered_workqueue("kernelsu_work_queue", 0);
-
     ksu_allowlist_init();
 
     ksu_throne_tracker_init();
 
-    ksu_sucompat_init();
-
 #ifdef KSU_KPROBES_HOOK
+    ksu_sucompat_init();
     ksu_ksud_init();
 #else
     pr_debug("init ksu driver\n");
@@ -118,21 +69,15 @@ int __init kernelsu_init(void)
 
 void kernelsu_exit(void)
 {
-#ifdef CONFIG_KSU_CMDLINE
-    if (!get_ksu_state()) {
-        return;
-    }
-#endif
     ksu_allowlist_exit();
 
     ksu_observer_exit();
 
     ksu_throne_tracker_exit();
 
-    destroy_workqueue(ksu_workqueue);
-
 #ifdef KSU_KPROBES_HOOK
     ksu_ksud_exit();
+    ksu_sucompat_exit();
 #endif
 
 

kernel/ksu.h

@@ -95,8 +95,6 @@ struct app_profile {
     };
 };
 
-bool ksu_queue_work(struct work_struct *work);
-
 static inline int startswith(char *s, char *prefix)
 {
     return strncmp(s, prefix, strlen(prefix));