um: Remove dead code from x86_64 syscall stub

syscall_stub is dead code as um is using only
batch_syscall_stub.

Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/arch/x86/um/stub_64.S b/arch/x86/um/stub_64.S
index 7160b20..a212445 100644 (file)
--- a/arch/x86/um/stub_64.S
+++ b/arch/x86/um/stub_64.S
@@ -1,19 +1,6 @@
 #include <as-layout.h>
 
-       .globl syscall_stub
 .section .__syscall_stub, "ax"
-syscall_stub:
-       syscall
-       /* We don't have 64-bit constants, so this constructs the address
-        * we need.
-        */
-       movq    $(STUB_DATA >> 32), %rbx
-       salq    $32, %rbx
-       movq    $(STUB_DATA & 0xffffffff), %rcx
-       or      %rcx, %rbx
-       movq    %rax, (%rbx)
-       int3
-
        .globl batch_syscall_stub
 batch_syscall_stub:
        mov     $(STUB_DATA >> 32), %rbx