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: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 8c81f7d..107307d 100644 (file)
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -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)