Commit 8b097881 authored by Kefeng Wang's avatar Kefeng Wang Committed by Linus Torvalds
Browse files

trap: cleanup trap_init() 

There are some empty trap_init() definitions in different ARCHs, Introduce
a new weak trap_init() function to clean them up.

Link: https://lkml.kernel.org/r/20210812123602.76356-1-wangkefeng.wang@huawei.com


Signed-off-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>	[arm32]
Acked-by: Vineet Gupta						[arc]
Acked-by: Michael Ellerman <mpe@ellerman.id.au>			[powerpc]
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Walmsley <palmerdabbelt@google.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b234ed6d

arch/arc/kernel/traps.c

+0 −5
Original line number Diff line number Diff line
@@ -20,11 +20,6 @@ 
#include <asm/unaligned.h>

#include <asm/kprobes.h>



void __init trap_init(void)

{

	return;

}



void die(const char *str, struct pt_regs *regs, unsigned long address)

{

	show_kernel_fault_diag(str, regs, address);

arch/arm/kernel/traps.c

+0 −5
Original line number Diff line number Diff line
@@ -781,11 +781,6 @@ void abort(void) 
	panic("Oops failed to kill thread");

}



void __init trap_init(void)

{

	return;

}



#ifdef CONFIG_KUSER_HELPERS

static void __init kuser_init(void *vectors)

{

arch/h8300/kernel/traps.c

+0 −4
Original line number Diff line number Diff line
@@ -39,10 +39,6 @@ void __init base_trap_init(void) 
{

}



void __init trap_init(void)

{

}



asmlinkage void set_esp0(unsigned long ssp)

{

	current->thread.esp0 = ssp;

arch/hexagon/kernel/traps.c

+0 −4
Original line number Diff line number Diff line
@@ -28,10 +28,6 @@ 
#define TRAP_SYSCALL	1

#define TRAP_DEBUG	0xdb



void __init trap_init(void)

{

}



#ifdef CONFIG_GENERIC_BUG

/* Maybe should resemble arch/sh/kernel/traps.c ?? */

int is_valid_bugaddr(unsigned long addr)

arch/nds32/kernel/traps.c

+0 −5
Original line number Diff line number Diff line
@@ -183,11 +183,6 @@ void __pgd_error(const char *file, int line, unsigned long val) 
}



extern char *exception_vector, *exception_vector_end;

void __init trap_init(void)

{

	return;

}



void __init early_trap_init(void)

{

	unsigned long ivb = 0;