Re: [PATCH] linux-next: Tree for May 21 - build failure withnetfilter on __nf_ct_helper_find()

From: Stephen Rothwell
Date: Wed May 21 2008 - 20:12:11 EST

Hi all,

On Wed, 21 May 2008 18:59:01 +0530 Kamalesh Babulal <kamalesh@xxxxxxxxxxxxxxxxxx> wrote:
> Stephen Rothwell wrote:
> >
> > Thanks for the report and patch. This looks like it is probably broken in
> > Linus' kernel. What config did you use to get the error?
> Please find the .config file used to reproduce this build failure attached.

Actually this is caused by the splitting out of the rcu stuff from list.h
that is in linux-next, sorry.

Your patch looks good to me (reproduced below for new cc's).

Ingo, this should probably go into the rcu tree.
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx

Date: Wed, 21 May 2008 17:02:30 +0530
From: Kamalesh Babulal <kamalesh@xxxxxxxxxxxxxxxxxx>
Subject: [PATCH] linux-next: Tree for May 21 - build failure with netfilter on __nf_ct_helper_find()

The next-20080521 kernel build fails, on x86_64 machine

CC net/netfilter/nf_conntrack_helper.o
net/netfilter/nf_conntrack_helper.c: In function â__nf_ct_helper_findâ:
net/netfilter/nf_conntrack_helper.c:58: error: implicit declaration of function âhlist_for_each_entry_rcuâ
net/netfilter/nf_conntrack_helper.c:58: error: âhnodeâ undeclared (first use in this function)
net/netfilter/nf_conntrack_helper.c:58: error: (Each undeclared identifier is reported only once
net/netfilter/nf_conntrack_helper.c:58: error: for each function it appears in.)
net/netfilter/nf_conntrack_helper.c:58: error: expected â;â before â{â token
net/netfilter/nf_conntrack_helper.c:50: warning: unused variable âmaskâ
net/netfilter/nf_conntrack_helper.c: In function â__nf_conntrack_helper_find_bynameâ:
net/netfilter/nf_conntrack_helper.c:74: error: âhnodeâ undeclared (first use in this function)
net/netfilter/nf_conntrack_helper.c:74: error: expected â;â before â{â token
net/netfilter/nf_conntrack_helper.c: In function ânf_conntrack_helper_registerâ:
net/netfilter/nf_conntrack_helper.c:117: error: implicit declaration of function âhlist_add_head_rcuâ
net/netfilter/nf_conntrack_helper.c: In function ânf_conntrack_helper_unregisterâ:
net/netfilter/nf_conntrack_helper.c:133: error: implicit declaration of function âhlist_del_rcuâ
make[2]: *** [net/netfilter/nf_conntrack_helper.o] Error 1
make[1]: *** [net/netfilter] Error 2
make: *** [net] Error 2

This build error is because of the missing include file.I have tested
the patch for the build failure only.

Signed-off-by: Kamalesh Babulal <kamalesh@xxxxxxxxxxxxxxxxxx>
--- linux-2.6.26-rc3/net/netfilter/nf_conntrack_helper.c 2008-05-20 20:24:14.000000000 +0530
+++ linux-2.6.26-rc3/net/netfilter/~nf_conntrack_helper.c 2008-05-22 00:17:32.000000000 +0530
@@ -20,6 +20,7 @@
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
+#include <linux/rculist.h>

#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_l3proto.h>
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at