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MIPS: sysmips: Rewrite to use SYSCALL_DEFINE3().

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

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2012-12-27 16:23:12 +01:00
parent f2ace93136
commit 12890d0f61
1 changed files with 5 additions and 12 deletions
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17
arch/mips/kernel/syscall.c
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@ -138,10 +138,10 @@ SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
return 0; return 0;
} }
static inline int mips_atomic_set(struct pt_regs *regs, static inline int mips_atomic_set(unsigned long addr, unsigned long new)
unsigned long addr, unsigned long new)
{ {
unsigned long old, tmp; unsigned long old, tmp;
struct pt_regs *regs;
unsigned int err; unsigned int err;
if (unlikely(addr & 3)) if (unlikely(addr & 3))
@ -222,6 +222,7 @@ static inline int mips_atomic_set(struct pt_regs *regs,
if (unlikely(err)) if (unlikely(err))
return err; return err;
regs = current_pt_regs();
regs->regs[2] = old; regs->regs[2] = old;
regs->regs[7] = 0; /* No error */ regs->regs[7] = 0; /* No error */
@ -238,19 +239,11 @@ static inline int mips_atomic_set(struct pt_regs *regs,
unreachable(); unreachable();
} }
save_static_function(sys_sysmips); SYSCALL_DEFINE3(sysmips, long, cmd, long, arg1, long, arg2)
static int __used noinline
_sys_sysmips(nabi_no_regargs struct pt_regs regs)
{ {
long cmd, arg1, arg2;
cmd = regs.regs[4];
arg1 = regs.regs[5];
arg2 = regs.regs[6];
switch (cmd) { switch (cmd) {
case MIPS_ATOMIC_SET: case MIPS_ATOMIC_SET:
return mips_atomic_set(&regs, arg1, arg2); return mips_atomic_set(arg1, arg2);
case MIPS_FIXADE: case MIPS_FIXADE:
if (arg1 & ~3) if (arg1 & ~3)