Init session keyring for samsung

Patch provided by user 'rhjdvsgsgks' on github.

Fixes:
#1249
#1346

Author: rhjdvsgsgks

kernel/core_hook.c

@@ -692,8 +692,8 @@ static int ksu_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 	ksu_handle_prctl(option, arg2, arg3, arg4, arg5);
 	return -ENOSYS;
 }
-// kernel 4.4 and 4.9
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
+// force for samsung
+#if 1
 static int ksu_key_permission(key_ref_t key_ref, const struct cred *cred,
 			      unsigned perm)
 {
@@ -726,7 +726,7 @@ static struct security_hook_list ksu_hooks[] = {
 	LSM_HOOK_INIT(task_prctl, ksu_task_prctl),
 	LSM_HOOK_INIT(inode_rename, ksu_inode_rename),
 	LSM_HOOK_INIT(task_fix_setuid, ksu_task_fix_setuid),
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
+#if 1
 	LSM_HOOK_INIT(key_permission, ksu_key_permission)
 #endif
 };

kernel/kernel_compat.c

@@ -9,7 +9,7 @@
 #include "linux/uaccess.h"
 #include "klog.h" // IWYU pragma: keep
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
+#if 1
 #include "linux/key.h"
 #include "linux/errno.h"
 #include "linux/cred.h"
@@ -78,7 +78,7 @@ void ksu_android_ns_fs_check()
 
 struct file *ksu_filp_open_compat(const char *filename, int flags, umode_t mode)
 {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
+#if 1
 	if (init_session_keyring != NULL && !current_cred()->session_keyring &&
 	    (current->flags & PF_WQ_WORKER)) {
 		pr_info("installing init session keyring for older kernel\n");

kernel/kernel_compat.h

@@ -9,7 +9,7 @@ extern long ksu_strncpy_from_user_nofault(char *dst,
 					  const void __user *unsafe_addr,
 					  long count);
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
+#if 1
 extern struct key *init_session_keyring;
 #endif