From: Li Zefan <lizefan@huawei.com>
Date: Thu, 7 Mar 2013 09:35:53 +0000 (+0800)
Subject: s390: Fix a header dependencies related build error
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=cb16b91a449afd01b85ec4e59f30449d11c4acd7;p=linux-beck.git

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@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Link: http://lkml.kernel.org/r/51385F79.7000106@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index 35f0020b7ba7..c7c9bf647c3e 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 */