linux-kernel - [tip:perf/urgent] s390: Fix a header dependencies related build error

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Message-ID: <tip-cb16b91a449afd01b85ec4e59f30449d11c4acd7@git.kernel.org>
Date:	Mon, 11 Mar 2013 02:57:05 -0700
From:	tip-bot for Li Zefan <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
	tglx@...utronix.de, fengguang.wu@...el.com, lizefan@...wei.com
Subject: [tip:perf/urgent] s390:
  Fix a header dependencies related build error

Commit-ID:  cb16b91a449afd01b85ec4e59f30449d11c4acd7
Gitweb:     http://git.kernel.org/tip/cb16b91a449afd01b85ec4e59f30449d11c4acd7
Author:     Li Zefan <lizefan@...wei.com>
AuthorDate: Thu, 7 Mar 2013 17:35:53 +0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 11 Mar 2013 10:43:35 +0100

s390: Fix a header dependencies related build error

Commit 877c685607925238e302cd3aa38788dca6c1b226
("perf: Remove include of cgroup.h from perf_event.h") caused
this build failure if PERF_EVENTS is enabled:

   In file included from arch/s390/include/asm/perf_event.h:9:0,
                    from include/linux/perf_event.h:24,
                    from kernel/events/ring_buffer.c:12:
   arch/s390/include/asm/cpu_mf.h: In function 'qctri':
   arch/s390/include/asm/cpu_mf.h:61:12: error: 'EINVAL' undeclared (first use in this function)

cpu_mf.h had an implicit errno.h dependency, which was added
indirectly via cgroups.h but not anymore. Add it explicitly.

Reported-by: Fengguang Wu <fengguang.wu@...el.com>
Tested-by: Fengguang Wu <fengguang.wu@...el.com>
Signed-off-by: Li Zefan <lizefan@...wei.com>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Link: http://lkml.kernel.org/r/51385F79.7000106@huawei.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/s390/include/asm/cpu_mf.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index 35f0020..c7c9bf6 100644
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -12,6 +12,7 @@
 #ifndef _ASM_S390_CPU_MF_H
 #define _ASM_S390_CPU_MF_H
 
+#include <linux/errno.h>
 #include <asm/facility.h>
 
 #define CPU_MF_INT_SF_IAE	(1 << 31)	/* invalid entry address */
--
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