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MIPS: Remove unused task_struct.trap_no field. 

It is initialized to zero and only ever read.  Remove it, and pass zero in
its place.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1531/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney 2010-08-03 14:57:39 -07:00 committed by Ralf Baechle
parent 9bb4d9dfd8
commit 7281cd2297
3 changed files with 1 additions and 4 deletions
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2
arch/mips/include/asm/processor.h
View File

@ -229,7 +229,6 @@ struct thread_struct {
unsigned long cp0_badvaddr; /* Last user fault */
unsigned long cp0_baduaddr; /* Last kernel fault accessing USEG */
unsigned long error_code;
unsigned long trap_no;
unsigned long irix_trampoline; /* Wheee... */
unsigned long irix_oldctx;
#ifdef CONFIG_CPU_CAVIUM_OCTEON
@ -301,7 +300,6 @@ struct thread_struct {
.cp0_badvaddr = 0, \
.cp0_baduaddr = 0, \
.error_code = 0, \
.trap_no = 0, \
.irix_trampoline = 0, \
.irix_oldctx = 0, \
/* \

1
arch/mips/kernel/asm-offsets.c
View File

@ -126,7 +126,6 @@ void output_thread_defines(void)
thread.cp0_baduaddr);
OFFSET(THREAD_ECODE, task_struct, \
thread.error_code);
OFFSET(THREAD_TRAPNO, task_struct, thread.trap_no);
OFFSET(THREAD_TRAMP, task_struct, \
thread.irix_trampoline);
OFFSET(THREAD_OLDCTX, task_struct, \

2
arch/mips/kernel/traps.c
View File

@ -376,7 +376,7 @@ void __noreturn die(const char * str, struct pt_regs * regs)
mips_mt_regdump(dvpret);
#endif /* CONFIG_MIPS_MT_SMTC */
if (notify_die(DIE_OOPS, str, regs, 0, current->thread.trap_no, SIGSEGV) == NOTIFY_STOP)
if (notify_die(DIE_OOPS, str, regs, 0, 0, SIGSEGV) == NOTIFY_STOP)
sig = 0;
printk("%s[#%d]:\n", str, ++die_counter);