X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=arch%2Fx86%2Fum%2Fstub_64.S;h=ba914b3b8cc4d960203ba3a038afbeb00cab0d1d;hb=eef121f407f727a8c34d8284f9b954828d2cb5ce;hp=7160b20172d0a4671d1e5dd6d8fe77956e32a47a;hpb=818b930bc15077fc00ff16bb22c5df1857f05afa;p=firefly-linux-kernel-4.4.55.git

diff --git a/arch/x86/um/stub_64.S b/arch/x86/um/stub_64.S
index 7160b20172d0..ba914b3b8cc4 100644
--- a/arch/x86/um/stub_64.S
+++ b/arch/x86/um/stub_64.S
@@ -1,25 +1,9 @@
 #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
-	sal	$32, %rbx
-	mov	$(STUB_DATA & 0xffffffff), %rax
-	or	%rax, %rbx
+	mov	$(STUB_DATA), %rbx
 	/* load pointer to first operation */
 	mov	%rbx, %rsp
 	add	$0x10, %rsp