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Commit bc4f2975 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: sysmips: Rewrite to use SYSCALL_DEFINE3(). 



Thanks to current_pt_regs() there is no need to use the dark MIPS magic.

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 33722a2e

arch/mips/kernel/syscall.c

+5 −12
Original line number Diff line number Diff line
@@ -138,10 +138,10 @@ SYSCALL_DEFINE1(set_thread_area, unsigned long, addr) 
	return 0;

}



static inline int mips_atomic_set(struct pt_regs *regs,

	unsigned long addr, unsigned long new)

static inline int mips_atomic_set(unsigned long addr, unsigned long new)

{

	unsigned long old, tmp;

	struct pt_regs *regs;

	unsigned int err;



	if (unlikely(addr & 3))
@@ -222,6 +222,7 @@ static inline int mips_atomic_set(struct pt_regs *regs, 
	if (unlikely(err))

		return err;



	regs = current_pt_regs();

	regs->regs[2] = old;

	regs->regs[7] = 0;	/* No error */
@@ -238,19 +239,11 @@ static inline int mips_atomic_set(struct pt_regs *regs, 
	unreachable();

}



save_static_function(sys_sysmips);

static int __used noinline

_sys_sysmips(nabi_no_regargs struct pt_regs regs)

SYSCALL_DEFINE3(sysmips, long, cmd, long, arg1, long, arg2)

{

	long cmd, arg1, arg2;



	cmd = regs.regs[4];

	arg1 = regs.regs[5];

	arg2 = regs.regs[6];



	switch (cmd) {

	case MIPS_ATOMIC_SET:

		return mips_atomic_set(&regs, arg1, arg2);

		return mips_atomic_set(arg1, arg2);



	case MIPS_FIXADE:

		if (arg1 & ~3)