From ae104ed4a4fd3c64bda8f6996180543096fbe1f4 Mon Sep 17 00:00:00 2001
From: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>
Date: Sun, 9 Nov 2025 16:41:54 +0800
Subject: [PATCH] kernel: Remove redundant checks

---
 kernel/kernel_umount.c | 22 ----------------------
 kernel/setuid_hook.c   |  2 --
 2 files changed, 24 deletions(-)

diff --git a/kernel/kernel_umount.c b/kernel/kernel_umount.c
index 77d0728d..44618e43 100644
--- a/kernel/kernel_umount.c
+++ b/kernel/kernel_umount.c
@@ -166,23 +166,6 @@ static void umount_tw_func(struct callback_head *cb)
     kfree(tw);
 }
 
-static inline bool is_appuid(uid_t uid)
-{
-#define PER_USER_RANGE 100000
-#define FIRST_APPLICATION_UID 10000
-#define LAST_APPLICATION_UID 19999
-
-    uid_t appid = uid % PER_USER_RANGE;
-    return appid >= FIRST_APPLICATION_UID && appid <= LAST_APPLICATION_UID;
-}
-
-static inline bool is_unsupported_uid(uid_t uid)
-{
-#define LAST_APPLICATION_UID 19999
-    uid_t appid = uid % 100000;
-    return appid > LAST_APPLICATION_UID;
-}
-
 int ksu_handle_umount(uid_t old_uid, uid_t new_uid)
 {
     struct umount_tw *tw;
@@ -196,11 +179,6 @@ int ksu_handle_umount(uid_t old_uid, uid_t new_uid)
         return 0;
     }
 
-    if (!is_appuid(new_uid) || is_unsupported_uid(new_uid)) {
-        pr_info("handle setuid ignore non application or isolated uid: %d\n", new_uid);
-        return 0;
-    }
-
     if (!ksu_uid_should_umount(new_uid)) {
         return 0;
     } else {
diff --git a/kernel/setuid_hook.c b/kernel/setuid_hook.c
index 346bf7d5..f9ed0e57 100644
--- a/kernel/setuid_hook.c
+++ b/kernel/setuid_hook.c
@@ -58,8 +58,6 @@
 #include "kernel_umount.h"
 #include "app_profile.h"
 
-#include "sulog.h"
-
 static bool ksu_enhanced_security_enabled = false;
 
 static int enhanced_security_feature_get(u64 *value)