x86_64: Zero extend all registers after ptrace in 32bit entry path.

[sfrench/cifs-2.6.git] / arch / x86_64 / kernel / ptrace.c

diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c
index e83cc67155ac253cbbec207b8ef246bc55f0a408..eea3702427b409d28c83c7e02a88c093a5c26232 100644 (file)
--- a/arch/x86_64/kernel/ptrace.c
+++ b/arch/x86_64/kernel/ptrace.c
@@ -232,10 +232,6 @@ static int putreg(struct task_struct *child,
 {
        unsigned long tmp; 
        
-       /* Some code in the 64bit emulation may not be 64bit clean.
-          Don't take any chances. */
-       if (test_tsk_thread_flag(child, TIF_IA32))
-               value &= 0xffffffff;
        switch (regno) {
                case offsetof(struct user_regs_struct,fs):
                        if (value && (value & 3) != 3)