[ARM] do_bad_area() always takes current and current->active_mm
Since do_bad_area() always takes the currently active task and
(supposed to) take the currently active MM, there's no point passing
them to this function. Instead, obtain references to them inside
do_bad_area().
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index e0d21bbb..aa109f0 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -735,7 +735,7 @@
/*
* We got a fault - fix it up, or die.
*/
- do_bad_area(current, current->mm, addr, fsr, regs);
+ do_bad_area(addr, fsr, regs);
return 0;
swp:
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index c5e0622..f0943d1 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -131,10 +131,11 @@
force_sig_info(sig, &si, tsk);
}
-void
-do_bad_area(struct task_struct *tsk, struct mm_struct *mm, unsigned long addr,
- unsigned int fsr, struct pt_regs *regs)
+void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
{
+ struct task_struct *tsk = current;
+ struct mm_struct *mm = tsk->active_mm;
+
/*
* If we are in kernel mode at this point, we
* have no context to handle this fault with.
@@ -319,7 +320,6 @@
do_translation_fault(unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
{
- struct task_struct *tsk;
unsigned int index;
pgd_t *pgd, *pgd_k;
pmd_t *pmd, *pmd_k;
@@ -351,9 +351,7 @@
return 0;
bad_area:
- tsk = current;
-
- do_bad_area(tsk, tsk->active_mm, addr, fsr, regs);
+ do_bad_area(addr, fsr, regs);
return 0;
}
@@ -364,8 +362,7 @@
static int
do_sect_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
{
- struct task_struct *tsk = current;
- do_bad_area(tsk, tsk->active_mm, addr, fsr, regs);
+ do_bad_area(addr, fsr, regs);
return 0;
}
diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h
index 73b59e8..49e9e38 100644
--- a/arch/arm/mm/fault.h
+++ b/arch/arm/mm/fault.h
@@ -1,6 +1,3 @@
-void do_bad_area(struct task_struct *tsk, struct mm_struct *mm,
- unsigned long addr, unsigned int fsr, struct pt_regs *regs);
-
-void show_pte(struct mm_struct *mm, unsigned long addr);
+void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
unsigned long search_exception_table(unsigned long addr);