archive mirror
 help / color / mirror / Atom feed
From: Rob Herring <>
To: Russell King <>
Cc: Stephen Rothwell <>,,
Subject: Re: linux-next: build failure after merge of the final tree (arm tree related)
Date: Tue, 03 Sep 2013 07:46:25 -0500	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On 09/03/2013 04:04 AM, Russell King wrote:
> On Tue, Sep 03, 2013 at 06:18:24PM +1000, Stephen Rothwell wrote:
>> Hi all,
>> After merging the final tree, today's linux-next build (arm defconfig)
>> failed like this:
>> arch/arm/kernel/built-in.o: In function `setup_arch':
>> io.c:(.init.text+0x594): undefined reference to `erratum_a15_798181_init'
>> Presumably caused by commit 34905a33184a ("ARM: 7804/2: Add check for
>> Cortex-A15 errata 798181 ECO").  This build does not have CONFIG_SMP set.
>> I have reverted that commit for today.
> Yep, and I think I'm going to do the same, rather than try and fix it.

Ah crap, I guess I should have left the ifdefs instead of trying to use

Here's a fix if you want it. Otherwise I can fold this in and resubmit it
rebased on top of Will's barriers series.


From: Rob Herring <>
Date: Tue, 3 Sep 2013 07:35:41 -0500
Subject: [PATCH] ARM: fix undefined reference to erratum_a15_798181_init on

Fix build error on !SMP builds introduced by commit 34905a33184a ("ARM:
804/2: Add check for Cortex-A15 errata 798181 ECO"):

arch/arm/kernel/built-in.o: In function `setup_arch':
io.c:(.init.text+0x594): undefined reference to `erratum_a15_798181_init'

Reported-by: Stephen Rothwell <>
Signed-off-by: Rob Herring <>
 arch/arm/include/asm/tlbflush.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index decff8d..e6217a1 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -443,7 +443,11 @@ static inline void local_flush_bp_all(void)
+#ifdef CONFIG_ARM_ERRATA_798181
 extern void erratum_a15_798181_init(void);
+static inline void erratum_a15_798181_init(void) {}
 extern bool (*erratum_a15_798181_handler)(void);
 static inline bool erratum_a15_798181(void)

  reply	other threads:[~2013-09-03 12:46 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-03  8:18 linux-next: build failure after merge of the final tree (arm tree related) Stephen Rothwell
2013-09-03  9:04 ` Russell King
2013-09-03 12:46   ` Rob Herring [this message]
  -- strict thread matches above, loose matches on Subject: below --
2011-05-13  4:52 Stephen Rothwell

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).