linux-kernel - [GIT PULL] x86/paravirt for v2.6.33

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Date:	Thu, 3 Dec 2009 22:09:13 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] x86/paravirt for v2.6.33

Linus,

Please pull the latest x86-paravirt-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-paravirt-for-linus

 Thanks,

	Ingo

------------------>
Jeremy Fitzhardinge (1):
      x86: unify sys_iopl


 arch/x86/include/asm/syscalls.h |    8 +++-----
 arch/x86/kernel/ioport.c        |   11 ++---------
 2 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h
index 372b76e..5336ce2 100644
--- a/arch/x86/include/asm/syscalls.h
+++ b/arch/x86/include/asm/syscalls.h
@@ -33,11 +33,11 @@ long sys_rt_sigreturn(struct pt_regs *);
 asmlinkage int sys_set_thread_area(struct user_desc __user *);
 asmlinkage int sys_get_thread_area(struct user_desc __user *);
 
-/* X86_32 only */
-#ifdef CONFIG_X86_32
 /* kernel/ioport.c */
-long sys_iopl(struct pt_regs *);
+asmlinkage long sys_iopl(unsigned int);
 
+/* X86_32 only */
+#ifdef CONFIG_X86_32
 /* kernel/process_32.c */
 int sys_clone(struct pt_regs *);
 int sys_execve(struct pt_regs *);
@@ -70,8 +70,6 @@ int sys_vm86(struct pt_regs *);
 #else /* CONFIG_X86_32 */
 
 /* X86_64 only */
-/* kernel/ioport.c */
-asmlinkage long sys_iopl(unsigned int, struct pt_regs *);
 
 /* kernel/process_64.c */
 asmlinkage long sys_clone(unsigned long, unsigned long,
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index 99c4d30..bad4f22 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -119,11 +119,10 @@ static int do_iopl(unsigned int level, struct pt_regs *regs)
 	return 0;
 }
 
-#ifdef CONFIG_X86_32
-long sys_iopl(struct pt_regs *regs)
+asmlinkage long sys_iopl(unsigned int level)
 {
-	unsigned int level = regs->bx;
 	struct thread_struct *t = &current->thread;
+	struct pt_regs *regs = task_pt_regs(current);
 	int rc;
 
 	rc = do_iopl(level, regs);
@@ -135,9 +134,3 @@ long sys_iopl(struct pt_regs *regs)
 out:
 	return rc;
 }
-#else
-asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs)
-{
-	return do_iopl(level, regs);
-}
-#endif
--
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