diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-12 14:38:28 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-02-03 18:16:24 -0500 |
| commit | 49cb25e92902ba24bd38c350114f8695493b262f (patch) | |
| tree | 4bc2fffe7aa654c4230232e0f64eee071ec1da46 /arch/x86/kernel | |
| parent | 3fe26fa34da029263067b48836e740c1ddffbd91 (diff) | |
x86: get rid of pt_regs argument in vm86/vm86old
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/entry_32.S | 21 | ||||
| -rw-r--r-- | arch/x86/kernel/vm86_32.c | 8 |
2 files changed, 4 insertions, 25 deletions
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index e132cf6ea140..352e5a9279ec 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -699,27 +699,6 @@ END(syscall_badsys) */ .popsection -/* - * System calls that need a pt_regs pointer. - */ -#define PTREGSCALL1(name) \ -ENTRY(ptregs_##name) ; \ - leal 4(%esp),%edx; \ - movl (PT_EBX+4)(%esp),%eax; \ - jmp sys_##name; \ -ENDPROC(ptregs_##name) - -#define PTREGSCALL2(name) \ -ENTRY(ptregs_##name) ; \ - leal 4(%esp),%ecx; \ - movl (PT_ECX+4)(%esp),%edx; \ - movl (PT_EBX+4)(%esp),%eax; \ - jmp sys_##name; \ -ENDPROC(ptregs_##name) - -PTREGSCALL2(vm86) -PTREGSCALL1(vm86old) - .macro FIXUP_ESPFIX_STACK /* * Switch back for ESPFIX stack to the normal zerobased stack diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c index 1dfe69cc78a8..1cf5766dde16 100644 --- a/arch/x86/kernel/vm86_32.c +++ b/arch/x86/kernel/vm86_32.c @@ -202,7 +202,7 @@ out: static int do_vm86_irq_handling(int subfunction, int irqnumber); static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk); -int sys_vm86old(struct vm86_struct __user *v86, struct pt_regs *regs) +int sys_vm86old(struct vm86_struct __user *v86) { struct kernel_vm86_struct info; /* declare this _on top_, * this avoids wasting of stack space. @@ -222,7 +222,7 @@ int sys_vm86old(struct vm86_struct __user *v86, struct pt_regs *regs) if (tmp) goto out; memset(&info.vm86plus, 0, (int)&info.regs32 - (int)&info.vm86plus); - info.regs32 = regs; + info.regs32 = current_pt_regs(); tsk->thread.vm86_info = v86; do_sys_vm86(&info, tsk); ret = 0; /* we never return here */ @@ -231,7 +231,7 @@ out: } -int sys_vm86(unsigned long cmd, unsigned long arg, struct pt_regs *regs) +int sys_vm86(unsigned long cmd, unsigned long arg) { struct kernel_vm86_struct info; /* declare this _on top_, * this avoids wasting of stack space. @@ -272,7 +272,7 @@ int sys_vm86(unsigned long cmd, unsigned long arg, struct pt_regs *regs) ret = -EFAULT; if (tmp) goto out; - info.regs32 = regs; + info.regs32 = current_pt_regs(); info.vm86plus.is_vm86pus = 1; tsk->thread.vm86_info = (struct vm86_struct __user *)v86; do_sys_vm86(&info, tsk); |