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From: tip-bot for Mathias Krause <minipli@googlemail.com>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org,
	minipli@googlemail.com, tglx@linutronix.de, luto@MIT.EDU
Subject: [tip:x86/debug] x86/vdso: Add __user annotation to VDSO32_SYMBOL
Date: Wed, 5 Sep 2012 03:55:25 -0700	[thread overview]
Message-ID: <tip-3d1334064fb365ea8f299874c2b4c46de2bee74d@git.kernel.org> (raw)
In-Reply-To: <1346621506-30857-3-git-send-email-minipli@googlemail.com>

Commit-ID:  3d1334064fb365ea8f299874c2b4c46de2bee74d
Gitweb:     http://git.kernel.org/tip/3d1334064fb365ea8f299874c2b4c46de2bee74d
Author:     Mathias Krause <minipli@googlemail.com>
AuthorDate: Sun, 2 Sep 2012 23:31:41 +0200
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Wed, 5 Sep 2012 10:52:23 +0200

x86/vdso: Add __user annotation to VDSO32_SYMBOL

The address calculated by VDSO32_SYMBOL() is a pointer into
userland. Add the __user annotation to fix related sparse
warnings in its users.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Andy Lutomirski <luto@MIT.EDU>
Link: http://lkml.kernel.org/r/1346621506-30857-3-git-send-email-minipli@googlemail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/vdso.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h
index bb05228..fddb53d 100644
--- a/arch/x86/include/asm/vdso.h
+++ b/arch/x86/include/asm/vdso.h
@@ -11,7 +11,8 @@ extern const char VDSO32_PRELINK[];
 #define VDSO32_SYMBOL(base, name)					\
 ({									\
 	extern const char VDSO32_##name[];				\
-	(void *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \
+	(void __user *)(VDSO32_##name - VDSO32_PRELINK +		\
+			(unsigned long)(base));				\
 })
 #endif
 

  reply	other threads:[~2012-09-05 10:55 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-02 21:31 [PATCH 0/7] x86: fix sparse warnings Mathias Krause
2012-09-02 21:31 ` [PATCH 1/7] x86: fix __user annotations in asm/sys_ia32.h Mathias Krause
2012-09-05 10:54   ` [tip:x86/debug] x86: Fix " tip-bot for Mathias Krause
2012-09-02 21:31 ` [PATCH 2/7] x86, vdso: add __user annotation to VDSO32_SYMBOL Mathias Krause
2012-09-05 10:55   ` tip-bot for Mathias Krause [this message]
2012-09-02 21:31 ` [PATCH 3/7] x86: ia32_signal.c: add __user casts to fix sparse warnings Mathias Krause
2012-09-05 10:56   ` [tip:x86/debug] x86/signals: " tip-bot for Mathias Krause
2012-09-02 21:31 ` [PATCH 4/7] x86, probe_roms: add missing __iomem annotation to pci_map_biosrom() Mathias Krause
2012-09-05 10:57   ` [tip:x86/debug] x86/pci/probe_roms: Add " tip-bot for Mathias Krause
2012-09-02 21:31 ` [PATCH 5/7] x86, xsave: keep __user annotation in casts Mathias Krause
2012-09-05 10:58   ` [tip:x86/debug] x86/fpu/xsave: Keep " tip-bot for Mathias Krause
2012-09-02 21:31 ` [PATCH 6/7] x86, iommu: drop duplicate const in __IOMMU_INIT Mathias Krause
2012-09-05 10:59   ` [tip:x86/debug] x86/iommu: Drop " tip-bot for Mathias Krause
2012-09-02 21:31 ` [PATCH 7/7] x86, iommu: use NULL instead of plain 0 for __IOMMU_INIT Mathias Krause
2012-09-05 11:00   ` [tip:x86/debug] x86/iommu: Use " tip-bot for Mathias Krause

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