add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/arm/mm/fault-armv.c
..
..
@@ -1,12 +1,9 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  *  linux/arch/arm/mm/fault-armv.c
3
4
  *
4
5
  *  Copyright (C) 1995  Linus Torvalds
5
6
  *  Modifications for ARM processor (c) 1995-2002 Russell King
6
- *
7
- * This program is free software; you can redistribute it and/or modify
8
- * it under the terms of the GNU General Public License version 2 as
9
- * published by the Free Software Foundation.
10
7
  */
11
8
 #include <linux/sched.h>
12
9
 #include <linux/kernel.h>
..
..
@@ -20,7 +17,6 @@
20
17
 #include <asm/bugs.h>
21
18
 #include <asm/cacheflush.h>
22
19
 #include <asm/cachetype.h>
23
-#include <asm/pgtable.h>
24
20
 #include <asm/tlbflush.h>
25
21
 
26
22
 #include "mm.h"
..
..
@@ -94,6 +90,7 @@
94
90
 {
95
91
 	spinlock_t *ptl;
96
92
 	pgd_t *pgd;
93
+	p4d_t *p4d;
97
94
 	pud_t *pud;
98
95
 	pmd_t *pmd;
99
96
 	pte_t *pte;
..
..
@@ -103,7 +100,11 @@
103
100
 	if (pgd_none_or_clear_bad(pgd))
104
101
 		return 0;
105
102
 
106
-	pud = pud_offset(pgd, address);
103
+	p4d = p4d_offset(pgd, address);
104
+	if (p4d_none_or_clear_bad(p4d))
105
+		return 0;
106
+
107
+	pud = pud_offset(p4d, address);
107
108
 	if (pud_none_or_clear_bad(pud))
108
109
 		return 0;
109
110