linux-next: build failure after merge of the final tree

From: Stephen Rothwell
Date: Wed Sep 28 2011 - 05:56:11 EST


Hi all,

After merging the final tree, today's linux-next build (sparc32 defconfig)
failed like this:

In file included from include/linux/irq_work.h:4:0,
from include/linux/perf_event.h:510,
from arch/sparc/mm/fault_32.c:21:
include/linux/llist.h: In function 'llist_add':
include/linux/llist.h:158:2: error: implicit declaration of function 'in_nmi'
In file included from include/linux/irq_work.h:4:0,
from include/linux/perf_event.h:510,
from arch/sparc/kernel/unaligned_32.c:18:
include/linux/llist.h: In function 'llist_add':
include/linux/llist.h:158:2: error: implicit declaration of function 'in_nmi'
In file included from include/linux/irq_work.h:4:0,
from include/linux/perf_event.h:510,
from kernel/sys.c:16:
include/linux/llist.h: In function 'llist_add':
include/linux/llist.h:158:2: error: implicit declaration of function 'in_nmi'

Caused by commit 510d7dc70eab ("llist: make all llist functions inline")
from the akpm tree.

I applied this patch for today:

From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Wed, 28 Sep 2011 19:51:38 +1000
Subject: [PATCH] llist: using in_nmi requires including hardirq.h

Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
include/linux/llist.h | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/linux/llist.h b/include/linux/llist.h
index 5d23564..fb81b7b 100644
--- a/include/linux/llist.h
+++ b/include/linux/llist.h
@@ -73,6 +73,7 @@ struct llist_node {
#ifdef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
#define CHECK_NMI_SAFE_CMPXCHG()
#else
+#include <linux/hardirq.h>
#define CHECK_NMI_SAFE_CMPXCHG() BUG_ON(in_nmi())
#endif

--
1.7.6.3

--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
http://www.canb.auug.org.au/~sfr/
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