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Date: Wed,  8 Nov 2023 13:58:34 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Masahiro Yamada <masahiroy@...nel.org>,
	linux-kbuild@...r.kernel.org
Cc: Arnd Bergmann <arnd@...db.de>,
	Matt Turner <mattst88@...il.com>,
	Vineet Gupta <vgupta@...nel.org>,
	Russell King <linux@...linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Guo Ren <guoren@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ard Biesheuvel <ardb@...nel.org>,
	Huacai Chen <chenhuacai@...nel.org>,
	Greg Ungerer <gerg@...ux-m68k.org>,
	Michal Simek <monstr@...str.eu>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Dinh Nguyen <dinguyen@...nel.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Geoff Levand <geoff@...radead.org>,
	Palmer Dabbelt <palmer@...belt.com>,
	Heiko Carstens <hca@...ux.ibm.com>,
	John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
	"David S. Miller" <davem@...emloft.net>,
	Andy Lutomirski <luto@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	x86@...nel.org,
	Helge Deller <deller@....de>,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Timur Tabi <timur@...nel.org>,
	Kent Overstreet <kent.overstreet@...ux.dev>,
	David Woodhouse <dwmw2@...radead.org>,
	"Naveen N. Rao" <naveen.n.rao@...ux.ibm.com>,
	Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
	Kees Cook <keescook@...omium.org>,
	Vincenzo Frascino <vincenzo.frascino@....com>,
	Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Nicolas Schier <nicolas@...sle.eu>,
	Al Viro <viro@...iv.linux.org.uk>,
	Uwe Kleine-K├Ânig <u.kleine-koenig@...gutronix.de>,
	linux-alpha@...r.kernel.org,
	linux-snps-arc@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-trace-kernel@...r.kernel.org,
	linux-csky@...r.kernel.org,
	loongarch@...ts.linux.dev,
	linux-m68k@...ts.linux-m68k.org,
	linux-mips@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-riscv@...ts.infradead.org,
	linux-s390@...r.kernel.org,
	linux-sh@...r.kernel.org,
	sparclinux@...r.kernel.org,
	netdev@...r.kernel.org,
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	linux-usb@...r.kernel.org,
	linux-fbdev@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-bcachefs@...r.kernel.org,
	linux-mtd@...ts.infradead.org
Subject: [PATCH 13/22] arch: add do_page_fault prototypes

From: Arnd Bergmann <arnd@...db.de>

arch/alpha/mm/fault.c:85:1: error: no previous prototype for 'do_page_fault' [-Werror=missing-prototypes]
arch/csky/mm/fault.c:187:17: error: no previous prototype for 'do_page_fault' [-Werror=missing-prototypes]
arch/mips/mm/fault.c:323:17: error: no previous prototype for 'do_page_fault' [-Werror=missing-prototypes]
arch/nios2/mm/fault.c:43:17: error: no previous prototype for 'do_page_fault' [-Werror=missing-prototypes]
arch/sh/mm/fault.c:389:27: error: no previous prototype for 'do_page_fault' [-Werror=missing-prototypes]

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/alpha/include/asm/mmu_context.h | 2 ++
 arch/csky/include/asm/traps.h        | 2 ++
 arch/mips/include/asm/traps.h        | 3 +++
 arch/nios2/include/asm/traps.h       | 2 ++
 arch/sh/include/asm/traps_32.h       | 3 +++
 5 files changed, 12 insertions(+)

diff --git a/arch/alpha/include/asm/mmu_context.h b/arch/alpha/include/asm/mmu_context.h
index 4eea7c616992..29a3e3a1f02b 100644
--- a/arch/alpha/include/asm/mmu_context.h
+++ b/arch/alpha/include/asm/mmu_context.h
@@ -183,6 +183,8 @@ ev4_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm,
 }
 
 extern void __load_new_mm_context(struct mm_struct *);
+asmlinkage void do_page_fault(unsigned long address, unsigned long mmcsr,
+			      long cause, struct pt_regs *regs);
 
 #ifdef CONFIG_SMP
 #define check_mmu_context()					\
diff --git a/arch/csky/include/asm/traps.h b/arch/csky/include/asm/traps.h
index 495ce318d569..6bbbbe43165f 100644
--- a/arch/csky/include/asm/traps.h
+++ b/arch/csky/include/asm/traps.h
@@ -55,4 +55,6 @@ asmlinkage void trap_c(struct pt_regs *regs);
 asmlinkage void do_notify_resume(struct pt_regs *regs,
 			unsigned long thread_info_flags);
 
+asmlinkage void do_page_fault(struct pt_regs *regs);
+
 #endif /* __ASM_CSKY_TRAPS_H */
diff --git a/arch/mips/include/asm/traps.h b/arch/mips/include/asm/traps.h
index 15cde638b407..d4d9f8a8fdea 100644
--- a/arch/mips/include/asm/traps.h
+++ b/arch/mips/include/asm/traps.h
@@ -39,4 +39,7 @@ extern char except_vec_nmi[];
 	register_nmi_notifier(&fn##_nb);				\
 })
 
+asmlinkage void do_page_fault(struct pt_regs *regs,
+	unsigned long write, unsigned long address);
+
 #endif /* _ASM_TRAPS_H */
diff --git a/arch/nios2/include/asm/traps.h b/arch/nios2/include/asm/traps.h
index 82a48473280d..afd77bef01c6 100644
--- a/arch/nios2/include/asm/traps.h
+++ b/arch/nios2/include/asm/traps.h
@@ -14,6 +14,8 @@
 
 #ifndef __ASSEMBLY__
 void _exception(int signo, struct pt_regs *regs, int code, unsigned long addr);
+void do_page_fault(struct pt_regs *regs, unsigned long cause,
+		   unsigned long address);
 #endif
 
 #endif /* _ASM_NIOS2_TRAPS_H */
diff --git a/arch/sh/include/asm/traps_32.h b/arch/sh/include/asm/traps_32.h
index 8c5bbb7b6053..8f14071bea72 100644
--- a/arch/sh/include/asm/traps_32.h
+++ b/arch/sh/include/asm/traps_32.h
@@ -43,6 +43,9 @@ static inline void trigger_address_error(void)
 asmlinkage void do_address_error(struct pt_regs *regs,
 				 unsigned long writeaccess,
 				 unsigned long address);
+asmlinkage void do_page_fault(struct pt_regs *regs,
+			      unsigned long error_code,
+			      unsigned long address);
 asmlinkage void do_divide_error(unsigned long r4);
 asmlinkage void do_reserved_inst(void);
 asmlinkage void do_illegal_slot_inst(void);
-- 
2.39.2


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