| From | Greg Kroah-Hartman <> | Subject | [ 009/122] ARM: 7548/1: include linux/sched.h in syscall.h | Date | Thu, 11 Oct 2012 07:52:55 +0900 |
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3.6-stable review patch. If anyone has any objections, please let me know.
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From: Wade Farnsworth <wade_farnsworth@mentor.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@mentor.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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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