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Message-Id: <1445852897-13102-4-git-send-email-richard@nod.at>
Date:	Mon, 26 Oct 2015 10:48:14 +0100
From:	Richard Weinberger <richard@....at>
To:	user-mode-linux-devel@...ts.sourceforge.net
Cc:	linux-kernel@...r.kernel.org, Richard Weinberger <richard@....at>
Subject: [PATCH 4/7] 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@....at>
---
 arch/x86/um/stub_64.S | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/arch/x86/um/stub_64.S b/arch/x86/um/stub_64.S
index 7160b20..a212445 100644
--- 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
-- 
1.8.4.5

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