linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Toshi Kani <toshi.kani@hp.com>
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org, linux-next@vger.kernel.org,
	linux-kernel@vger.kernel.org, kbuild-all@01.org,
	sfr@canb.auug.org.au, fengguang.wu@intel.com, hannes@cmpxchg.org,
	Toshi Kani <toshi.kani@hp.com>
Subject: [PATCH] Fix undefined ioremap_huge_init when CONFIG_MMU is not set
Date: Thu,  5 Mar 2015 08:44:06 -0700	[thread overview]
Message-ID: <1425570246-812-1-git-send-email-toshi.kani@hp.com> (raw)

Fix a build error, undefined reference to ioremap_huge_init, when
CONFIG_MMU is not defined on linux-next and -mm tree.

lib/ioremap.o is not linked to the kernel when CONFIG_MMU is not
defined.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
---
 include/linux/io.h |    5 +++--
 lib/ioremap.c      |    1 -
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/io.h b/include/linux/io.h
index 1ce8b4e..4cc299c 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -38,11 +38,12 @@ static inline int ioremap_page_range(unsigned long addr, unsigned long end,
 }
 #endif
 
-void __init ioremap_huge_init(void);
-
 #ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
+void __init ioremap_huge_init(void);
 int arch_ioremap_pud_supported(void);
 int arch_ioremap_pmd_supported(void);
+#else
+static inline void ioremap_huge_init(void) { }
 #endif
 
 /*
diff --git a/lib/ioremap.c b/lib/ioremap.c
index 3055ada..be24906 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -46,7 +46,6 @@ static inline int ioremap_pmd_enabled(void)
 }
 
 #else	/* !CONFIG_HAVE_ARCH_HUGE_VMAP */
-void __init ioremap_huge_init(void) { }
 static inline int ioremap_pud_enabled(void) { return 0; }
 static inline int ioremap_pmd_enabled(void) { return 0; }
 #endif	/* CONFIG_HAVE_ARCH_HUGE_VMAP */

             reply	other threads:[~2015-03-05 15:44 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-05 15:44 Toshi Kani [this message]
2015-03-05 23:41 ` [PATCH] Fix undefined ioremap_huge_init when CONFIG_MMU is not set Stephen Rothwell
2015-03-05 23:43   ` Toshi Kani

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:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

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

  git send-email \
    --in-reply-to=1425570246-812-1-git-send-email-toshi.kani@hp.com \
    --to=toshi.kani@hp.com \
    --cc=akpm@linux-foundation.org \
    --cc=fengguang.wu@intel.com \
    --cc=hannes@cmpxchg.org \
    --cc=kbuild-all@01.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linux-next@vger.kernel.org \
    --cc=sfr@canb.auug.org.au \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* 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).