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amd64: get rid of useless RESTORE_TOP_OF_STACK in stub_execve()
authorAl Viro <viro@zeniv.linux.org.uk>
Mon, 12 Nov 2012 19:19:03 +0000 (14:19 -0500)
committerAl Viro <viro@zeniv.linux.org.uk>
Sun, 3 Feb 2013 23:16:23 +0000 (18:16 -0500)
we are not going to return via SYSRET anyway.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
arch/x86/kernel/entry_64.S patch | blob | history

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 07a7a04..2f2f57a 100644 (file)
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -886,7 +886,6 @@ ENTRY(stub_execve)
        SAVE_REST
        FIXUP_TOP_OF_STACK %r11
        call sys_execve
-       RESTORE_TOP_OF_STACK %r11
        movq %rax,RAX(%rsp)
        RESTORE_REST
        jmp int_ret_from_sys_call
Domain: System / Kernel;