linux-kernel - [tip:x86/asm] x86-64, paravirt: Call set_iopl

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Message-ID: <tip-fc380ceed7fe469728ea4acdbda4495ea943ee1c@git.kernel.org>
Date:	Thu, 10 Dec 2009 00:57:32 GMT
From:	"tip-bot for H. Peter Anvin" <hpa@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, jeremy@...p.org, hpa@...or.com,
	mingo@...hat.com, brgerst@...il.com, tglx@...utronix.de
Subject: [tip:x86/asm] x86-64, paravirt: Call set_iopl_mask() on 64 bits

Commit-ID:  fc380ceed7fe469728ea4acdbda4495ea943ee1c
Gitweb:     http://git.kernel.org/tip/fc380ceed7fe469728ea4acdbda4495ea943ee1c
Author:     H. Peter Anvin <hpa@...or.com>
AuthorDate: Wed, 9 Dec 2009 16:54:08 -0800
Committer:  H. Peter Anvin <hpa@...or.com>
CommitDate: Wed, 9 Dec 2009 16:54:08 -0800

x86-64, paravirt: Call set_iopl_mask() on 64 bits

set_iopl_mask() is a no-op on 64 bits, but it is also a paravirt hook,
so call it even on 64 bits.

Signed-off-by: H. Peter Anvin <hpa@...or.com>
Cc: Jeremy Fitzhardinge <jeremy@...p.org>
Cc: Brian Gerst <brgerst@...il.com>
LKML-Reference: <1260403316-5679-3-git-send-email-brgerst@...il.com>
---
 arch/x86/kernel/ioport.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index 85ecc7c..8eec0ec 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -116,10 +116,8 @@ long sys_iopl(unsigned int level, struct pt_regs *regs)
 			return -EPERM;
 	}
 	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
-#ifdef CONFIG_X86_32
 	t->iopl = level << 12;
 	set_iopl_mask(t->iopl);
-#endif
 
 	return 0;
 }
--
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