5 files changed, 23 insertions, 52 deletions
diff --git a/arch/m68k/include/asm/atomic.h b/arch/m68k/include/asm/atomic.h
index cfba83d230fd..4bfbc25f6ecf 100644
--- a/arch/m68k/include/asm/atomic.h
+++ b/arch/m68k/include/asm/atomic.h
@@ -106,6 +106,11 @@ static inline int arch_atomic_fetch_##op(int i, atomic_t * v)		\
 ATOMIC_OPS(add, +=, add)
 ATOMIC_OPS(sub, -=, sub)
 
+#define arch_atomic_add_return			arch_atomic_add_return
+#define arch_atomic_sub_return			arch_atomic_sub_return
+#define arch_atomic_fetch_add			arch_atomic_fetch_add
+#define arch_atomic_fetch_sub			arch_atomic_fetch_sub
+
 #undef ATOMIC_OPS
 #define ATOMIC_OPS(op, c_op, asm_op)					\
 	ATOMIC_OP(op, c_op, asm_op)					\
@@ -115,6 +120,10 @@ ATOMIC_OPS(and, &=, and)
 ATOMIC_OPS(or, |=, or)
 ATOMIC_OPS(xor, ^=, eor)
 
+#define arch_atomic_fetch_and			arch_atomic_fetch_and
+#define arch_atomic_fetch_or			arch_atomic_fetch_or
+#define arch_atomic_fetch_xor			arch_atomic_fetch_xor
+
 #undef ATOMIC_OPS
 #undef ATOMIC_FETCH_OP
 #undef ATOMIC_OP_RETURN
@@ -158,12 +167,7 @@ static inline int arch_atomic_inc_and_test(atomic_t *v)
 }
 #define arch_atomic_inc_and_test arch_atomic_inc_and_test
 
-#ifdef CONFIG_RMW_INSNS
-
-#define arch_atomic_cmpxchg(v, o, n) ((int)arch_cmpxchg(&((v)->counter), (o), (n)))
-#define arch_atomic_xchg(v, new) (arch_xchg(&((v)->counter), new))
-
-#else /* !CONFIG_RMW_INSNS */
+#ifndef CONFIG_RMW_INSNS
 
 static inline int arch_atomic_cmpxchg(atomic_t *v, int old, int new)
 {
@@ -177,6 +181,7 @@ static inline int arch_atomic_cmpxchg(atomic_t *v, int old, int new)
 	local_irq_restore(flags);
 	return prev;
 }
+#define arch_atomic_cmpxchg arch_atomic_cmpxchg
 
 static inline int arch_atomic_xchg(atomic_t *v, int new)
 {
@@ -189,6 +194,7 @@ static inline int arch_atomic_xchg(atomic_t *v, int new)
 	local_irq_restore(flags);
 	return prev;
 }
+#define arch_atomic_xchg arch_atomic_xchg
 
 #endif /* !CONFIG_RMW_INSNS */
 
diff --git a/arch/m68k/include/asm/bugs.h b/arch/m68k/include/asm/bugs.h
deleted file mode 100644
index 745530651e0b..000000000000
--- a/arch/m68k/include/asm/bugs.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- *  include/asm-m68k/bugs.h
- *
- *  Copyright (C) 1994  Linus Torvalds
- */
-
-/*
- * This is included by init/main.c to check for architecture-dependent bugs.
- *
- * Needs:
- *	void check_bugs(void);
- */
-
-#ifdef CONFIG_MMU
-extern void check_bugs(void);	/* in arch/m68k/kernel/setup.c */
-#else
-static void check_bugs(void)
-{
-}
-#endif
diff --git a/arch/m68k/include/asm/fb.h b/arch/m68k/include/asm/fb.h
index b86c6e2e26dd..24273fc7ad91 100644
--- a/arch/m68k/include/asm/fb.h
+++ b/arch/m68k/include/asm/fb.h
@@ -2,22 +2,18 @@
 #ifndef _ASM_FB_H_
 #define _ASM_FB_H_
 
-#include <linux/fb.h>
-#include <linux/fs.h>
 #include <asm/page.h>
 #include <asm/setup.h>
 
-#ifdef CONFIG_MMU
-#ifdef CONFIG_SUN3
+struct file;
+
 static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
 				unsigned long off)
 {
+#ifdef CONFIG_MMU
+#ifdef CONFIG_SUN3
 	pgprot_val(vma->vm_page_prot) |= SUN3_PAGE_NOCACHE;
-}
 #else
-static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
-				unsigned long off)
-{
 	if (CPU_IS_020_OR_030)
 		pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE030;
 	if (CPU_IS_040_OR_060) {
@@ -25,15 +21,11 @@ static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
 		/* Use no-cache mode, serialized */
 		pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE_S;
 	}
-}
 #endif /* CONFIG_SUN3 */
-#else
-#define fb_pgprotect(...) do {} while (0)
 #endif /* CONFIG_MMU */
-
-static inline int fb_is_primary_device(struct fb_info *info)
-{
-	return 0;
 }
+#define fb_pgprotect fb_pgprotect
+
+#include <asm-generic/fb.h>
 
 #endif /* _ASM_FB_H_ */
diff --git a/arch/m68k/include/asm/mcfgpio.h b/arch/m68k/include/asm/mcfgpio.h
index 2cefe8445980..7abd322c019f 100644
--- a/arch/m68k/include/asm/mcfgpio.h
+++ b/arch/m68k/include/asm/mcfgpio.h
@@ -34,14 +34,6 @@ static inline void __gpio_set_value(unsigned gpio, int value)
 		__mcfgpio_set_value(gpio, value);
 }
 
-static inline int __gpio_cansleep(unsigned gpio)
-{
-	if (gpio < MCFGPIO_PIN_MAX)
-		return 0;
-	else
-		return -EINVAL;
-}
-
 static inline int __gpio_to_irq(unsigned gpio)
 {
 	return -EINVAL;
diff --git a/arch/m68k/include/asm/mmu_context.h b/arch/m68k/include/asm/mmu_context.h
index 8ed6ac14d99f..141bbdfad960 100644
--- a/arch/m68k/include/asm/mmu_context.h
+++ b/arch/m68k/include/asm/mmu_context.h
@@ -99,7 +99,7 @@ static inline void load_ksp_mmu(struct task_struct *task)
 	p4d_t *p4d;
 	pud_t *pud;
 	pmd_t *pmd;
-	pte_t *pte;
+	pte_t *pte = NULL;
 	unsigned long mmuar;
 
 	local_irq_save(flags);
@@ -139,7 +139,7 @@ static inline void load_ksp_mmu(struct task_struct *task)
 
 	pte = (mmuar >= PAGE_OFFSET) ? pte_offset_kernel(pmd, mmuar)
 				     : pte_offset_map(pmd, mmuar);
-	if (pte_none(*pte) || !pte_present(*pte))
+	if (!pte || pte_none(*pte) || !pte_present(*pte))
 		goto bug;
 
 	set_pte(pte, pte_mkyoung(*pte));
@@ -161,6 +161,8 @@ static inline void load_ksp_mmu(struct task_struct *task)
 bug:
 	pr_info("ksp load failed: mm=0x%p ksp=0x08%lx\n", mm, mmuar);
 end:
+	if (pte && mmuar < PAGE_OFFSET)
+		pte_unmap(pte);
 	local_irq_restore(flags);
 }