x86: get rid of pt_regs argument in vm86/vm86old (49cb25e9) · Commits · e / devices / android_kernel_xiaomi_markw

arch/x86/include/asm/syscalls.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -40,8 +40,8 @@ asmlinkage int sys_sigaction(int, const struct old_sigaction __user *,
		unsigned long sys_sigreturn(void);

		/* kernel/vm86_32.c */
		int sys_vm86old(struct vm86_struct __user , struct pt_regs );
		int sys_vm86(unsigned long, unsigned long, struct pt_regs *);
		int sys_vm86old(struct vm86_struct __user *);
		int sys_vm86(unsigned long, unsigned long);

		#else /* CONFIG_X86_32 */

+0 −21

Original line number	Diff line number	Diff line
		@@ -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

+4 −4

Original line number	Diff line number	Diff line
		@@ -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);

+2 −2

Original line number	Diff line number	Diff line
		@@ -119,7 +119,7 @@
		110 i386 iopl sys_iopl
		111 i386 vhangup sys_vhangup
		112 i386 idle
		113 i386 vm86old ptregs_vm86old sys32_vm86_warning
		113 i386 vm86old sys_vm86old sys32_vm86_warning
		114 i386 wait4 sys_wait4 compat_sys_wait4
		115 i386 swapoff sys_swapoff
		116 i386 sysinfo sys_sysinfo compat_sys_sysinfo
		@@ -172,7 +172,7 @@
		163 i386 mremap sys_mremap
		164 i386 setresuid sys_setresuid16
		165 i386 getresuid sys_getresuid16
		166 i386 vm86 ptregs_vm86 sys32_vm86_warning
		166 i386 vm86 sys_vm86 sys32_vm86_warning
		167 i386 query_module
		168 i386 poll sys_poll
		169 i386 nfsservctl

+0 −3

Original line number	Diff line number	Diff line
		@@ -24,9 +24,6 @@

		#define old_mmap sys_old_mmap

		#define ptregs_vm86old sys_vm86old
		#define ptregs_vm86 sys_vm86

		#define __SYSCALL_I386(nr, sym, compat) extern asmlinkage void sym(void) ;
		#include <asm/syscalls_32.h>