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From: "H. Peter Anvin" <hpa@linux.intel.com>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Kees Cook <keescook@chromium.org>, Linda Wang <lwang@redhat.com>,
	Matt Fleming <matt.fleming@intel.com>,
	"H. Peter Anvin" <hpa@linux.intel.com>
Subject: [PATCH 07/11] x86, uaccess: Merge prototypes for clear_user/__clear_user
Date: Fri, 21 Sep 2012 12:43:11 -0700	[thread overview]
Message-ID: <1348256595-29119-8-git-send-email-hpa@linux.intel.com> (raw)
In-Reply-To: <1348256595-29119-1-git-send-email-hpa@linux.intel.com>

From: "H. Peter Anvin" <hpa@linux.intel.com>

The prototypes for clear_user() and __clear_user() are identical in
the 32- and 64-bit headers.  No functionality change.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/uaccess.h    |    3 +++
 arch/x86/include/asm/uaccess_32.h |    3 ---
 arch/x86/include/asm/uaccess_64.h |    3 ---
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index e1f3a17..2c7df3d 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -569,6 +569,9 @@ strncpy_from_user(char *dst, const char __user *src, long count);
 extern __must_check long strlen_user(const char __user *str);
 extern __must_check long strnlen_user(const char __user *str, long n);
 
+unsigned long __must_check clear_user(void __user *mem, unsigned long len);
+unsigned long __must_check __clear_user(void __user *mem, unsigned long len);
+
 /*
  * movsl can be slow when source and dest are not both 8-byte aligned
  */
diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
index 576e39b..7f760a9 100644
--- a/arch/x86/include/asm/uaccess_32.h
+++ b/arch/x86/include/asm/uaccess_32.h
@@ -213,7 +213,4 @@ static inline unsigned long __must_check copy_from_user(void *to,
 	return n;
 }
 
-unsigned long __must_check clear_user(void __user *mem, unsigned long len);
-unsigned long __must_check __clear_user(void __user *mem, unsigned long len);
-
 #endif /* _ASM_X86_UACCESS_32_H */
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index d8def8b..142810c 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -217,9 +217,6 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 	}
 }
 
-__must_check unsigned long clear_user(void __user *mem, unsigned long len);
-__must_check unsigned long __clear_user(void __user *mem, unsigned long len);
-
 static __must_check __always_inline int
 __copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
 {
-- 
1.7.6.5


  parent reply	other threads:[~2012-09-21 19:44 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-21 19:43 [PATCH 00/11] x86: Supervisor Mode Access Prevention H. Peter Anvin
2012-09-21 19:43 ` [PATCH 01/11] x86, cpufeature: Add feature bit for SMAP H. Peter Anvin
2012-09-21 19:43 ` [PATCH 02/11] x86-32, mm: The WP test should be done on a kernel page H. Peter Anvin
2012-09-21 19:58   ` [tip:x86/smap] " tip-bot for H. Peter Anvin
2012-09-21 19:43 ` [PATCH 03/11] x86, smap: Add CR4 bit for SMAP H. Peter Anvin
2012-09-21 19:59   ` [tip:x86/smap] " tip-bot for H. Peter Anvin
2012-09-21 19:43 ` [PATCH 04/11] x86, alternative: Use .pushsection/.popsection H. Peter Anvin
2012-09-21 20:00   ` [tip:x86/smap] " tip-bot for H. Peter Anvin
2012-09-21 19:43 ` [PATCH 05/11] x86, alternative: Add header guards to <asm/alternative-asm.h> H. Peter Anvin
2012-09-21 20:01   ` [tip:x86/smap] x86, alternative: Add header guards to <asm/ alternative-asm.h> tip-bot for H. Peter Anvin
2012-09-21 19:43 ` [PATCH 06/11] x86, smap: Add a header file with macros for STAC/CLAC H. Peter Anvin
2012-09-21 20:02   ` [tip:x86/smap] x86, smap: Add a header file with macros for STAC/ CLAC tip-bot for H. Peter Anvin
2012-09-21 19:43 ` H. Peter Anvin [this message]
2012-09-21 20:03   ` [tip:x86/smap] x86, uaccess: Merge prototypes for clear_user/ __clear_user tip-bot for H. Peter Anvin
2012-09-21 19:43 ` [PATCH 08/11] x86, smap: Add STAC and CLAC instructions to control user space access H. Peter Anvin
2012-09-21 20:04   ` [tip:x86/smap] " tip-bot for H. Peter Anvin
2012-09-22  0:16   ` [tip:x86/smap] x86-32, smap: Add STAC/ CLAC instructions to 32-bit kernel entry tip-bot for H. Peter Anvin
2012-09-21 19:43 ` [PATCH 09/11] x86, smap: Turn on Supervisor Mode Access Prevention H. Peter Anvin
2012-09-21 20:05   ` [tip:x86/smap] " tip-bot for H. Peter Anvin
2012-09-21 19:43 ` [PATCH 10/11] x86, smap: A page fault due to SMAP is an oops H. Peter Anvin
2012-09-21 20:06   ` [tip:x86/smap] " tip-bot for H. Peter Anvin
2012-09-21 19:43 ` [PATCH 11/11] x86, smap: Reduce the SMAP overhead for signal handling H. Peter Anvin
2012-09-21 20:07   ` [tip:x86/smap] " tip-bot for H. Peter Anvin
2012-09-21 19:54 ` [PATCH 00/11] x86: Supervisor Mode Access Prevention Linus Torvalds
2012-09-21 19:57   ` H. Peter Anvin
2012-09-21 20:08   ` Ingo Molnar
2012-09-21 21:03     ` H. Peter Anvin
2012-09-21 21:09       ` Linus Torvalds
2012-09-21 21:12         ` H. Peter Anvin
2012-09-21 22:07 ` Eric W. Biederman
2012-09-21 22:12   ` H. Peter Anvin
2012-09-22  0:41     ` Eric W. Biederman
2012-09-24 23:27       ` [RFC PATCH] x86-32: Start out eflags and cr4 clean H. Peter Anvin
2012-09-25 13:27         ` Konrad Rzeszutek Wilk
2012-09-25 13:48         ` Ian Campbell
2012-09-26 11:29           ` Konrad Rzeszutek Wilk
2012-09-27  6:11         ` [tip:x86/smap] " tip-bot for H. Peter Anvin
2012-11-24  3:49           ` Yuhong Bao
2012-11-24  5:06             ` H. Peter Anvin
2012-09-27  6:11         ` [tip:x86/smap] x86, suspend: On wakeup always initialize cr4 and EFER tip-bot for H. Peter Anvin
2012-10-01 22:04         ` [tip:x86/urgent] x86, suspend: Correct the restore of CR4, EFER; skip computing EFLAGS.ID tip-bot for H. Peter Anvin
2012-10-02  6:52         ` tip-bot for H. Peter Anvin
2012-10-10 19:59         ` [RFC PATCH] x86-32: Start out eflags and cr4 clean Andres Salomon
2013-01-19  0:40           ` Andres Salomon
2013-01-19  0:42             ` H. Peter Anvin
2013-01-19  1:05               ` [Techteam] " Mitch Bradley
2013-01-19  2:35                 ` H. Peter Anvin
2013-01-19  7:44                   ` Mitch Bradley
2013-01-19 12:34                   ` Daniel Drake
2013-01-19 19:15                   ` [tip:x86/urgent] x86-32: Start out cr0 clean, disable paging before modifying cr3/4 tip-bot for H. Peter Anvin
2012-09-21 22:08 ` [PATCH 00/11] x86: Supervisor Mode Access Prevention Dave Jones
2012-09-21 22:10   ` H. Peter Anvin
2012-09-22 11:32     ` Ingo Molnar
2012-09-24 20:31       ` H. Peter Anvin
2012-09-24 20:43         ` Kees Cook
2012-09-24 20:51           ` H. Peter Anvin

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