x86_64 ia32 ptrace: use compat_ptrace_request for siginfo

This removes the special-case handling for PTRACE_GETSIGINFO
and PTRACE_SETSIGINFO from x86_64's sys32_ptrace.  The generic
compat_ptrace_request code handles these.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 29 deletions

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 559c1b027417..870dc1023d2d 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -1207,32 +1207,6 @@ static int genregs32_set(struct task_struct *target,
         return ret;
 }
 
-static long ptrace32_siginfo(unsigned request, u32 pid, u32 addr, u32 data)
-{
-        siginfo_t __user *si = compat_alloc_user_space(sizeof(siginfo_t));
-        compat_siginfo_t __user *si32 = compat_ptr(data);
-        siginfo_t ssi;
-        int ret;
-
-        if (request == PTRACE_SETSIGINFO) {
-                memset(&ssi, 0, sizeof(siginfo_t));
-                ret = copy_siginfo_from_user32(&ssi, si32);
-                if (ret)
-                        return ret;
-                if (copy_to_user(si, &ssi, sizeof(siginfo_t)))
-                        return -EFAULT;
-        }
-        ret = sys_ptrace(request, pid, addr, (unsigned long)si);
-        if (ret)
-                return ret;
-        if (request == PTRACE_GETSIGINFO) {
-                if (copy_from_user(&ssi, si, sizeof(siginfo_t)))
-                        return -EFAULT;
-                ret = copy_siginfo_to_user32(si32, &ssi);
-        }
-        return ret;
-}
-
 asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 {
         struct task_struct *child;
@@ -1280,11 +1254,9 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
         case PTRACE_SETFPXREGS:
         case PTRACE_GETFPXREGS:
         case PTRACE_GETEVENTMSG:
-                break;
-
         case PTRACE_SETSIGINFO:
         case PTRACE_GETSIGINFO:
-                return ptrace32_siginfo(request, pid, addr, data);
+                break;
         }
 
         child = ptrace_get_task_struct(pid);