UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Ralf Baechle 2012-12-27 16:23:12 +01:00
parent 33722a2e73
commit bc4f297554
1 changed files with 5 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
arch/mips/kernel/syscall.c
View File

@ -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)