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x86/asm/entry/64: Remove stub_iopl

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stub_iopl is no longer needed: pt_regs->flags needs no fixing up
after previous change. Remove it.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1425984307-2143-1-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Denys Vlasenko 2015-03-10 11:45:06 +01:00 committed by Ingo Molnar
parent 29722cd4ef
commit 616ab249f1
3 changed files with 2 additions and 15 deletions
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13
arch/x86/kernel/entry_64.S
View File

@ -421,22 +421,9 @@ ENTRY(stub_\func)
END(stub_\func)
.endm
.macro FIXED_FRAME label,func
ENTRY(\label)
CFI_STARTPROC
DEFAULT_FRAME 0, 8 /* offset 8: return address */
FIXUP_TOP_OF_STACK %r11, 8
call \func
RESTORE_TOP_OF_STACK %r11, 8
ret
CFI_ENDPROC
END(\label)
.endm
FORK_LIKE clone
FORK_LIKE fork
FORK_LIKE vfork
FIXED_FRAME stub_iopl, sys_iopl
ENTRY(stub_execve)
CFI_STARTPROC

2
arch/x86/syscalls/syscall_64.tbl
View File

@ -178,7 +178,7 @@
169 common reboot sys_reboot
170 common sethostname sys_sethostname
171 common setdomainname sys_setdomainname
172 common iopl stub_iopl
172 common iopl sys_iopl
173 common ioperm sys_ioperm
174 64 create_module
175 common init_module sys_init_module

2
arch/x86/um/sys_call_table_64.c
View File

@ -16,7 +16,7 @@
*/
/* Not going to be implemented by UML, since we have no hardware. */
#define stub_iopl sys_ni_syscall
#define sys_iopl sys_ni_syscall
#define sys_ioperm sys_ni_syscall
/*