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Date: Thu, 11 Oct 2012 07:50:33 +0900
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
alan@...rguk.ukuu.org.uk,
Wade Farnsworth <wade_farnsworth@...tor.com>,
Will Deacon <will.deacon@....com>,
Russell King <rmk+kernel@....linux.org.uk>
Subject: [ 007/133] ARM: 7548/1: include linux/sched.h in syscall.h
3.5-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wade Farnsworth <wade_farnsworth@...tor.com>
commit 8ef102c6b4bc996ff96ca52b34775fe931ec90c9 upstream.
The syscall tracing patch introduces a compile bug in lttng-modules
when the latter calls syscall_get_nr(), similar to the following:
<path-to-linux>/arch/arm/include/asm/syscall.h:21:2: error: implicit declaration of function 'task_thread_info' [-Werror=implicit-function-declaration]
The issue is that we are using task_thread_info() in the
syscall_get_nr() function in asm/syscall.h, but not explicitly
including sched.h from this file, so we can expect this bug might
surface any time that syscall_get_nr() is called.
Explicitly including sched.h solves the problem.
Signed-off-by: Wade Farnsworth <wade_farnsworth@...tor.com>
Acked-by: Will Deacon <will.deacon@....com>
Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
arch/arm/include/asm/syscall.h | 1 +
1 file changed, 1 insertion(+)
--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -8,6 +8,7 @@
#define _ASM_ARM_SYSCALL_H
#include <linux/err.h>
+#include <linux/sched.h>
extern const unsigned long sys_call_table[];
--
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