lkml.org 
[lkml]   [2013]   [Sep]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 29/58] MIPS: Rewrite pfn_valid to work in modules, too.
Date
3.5.7.21 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ralf Baechle <ralf@linux-mips.org>

commit 8b9232141bf40788cce31f893c13f344ec31ee66 upstream.

This fixes:

MODPOST 393 modules
ERROR: "min_low_pfn" [arch/mips/kvm/kvm.ko] undefined!
make[3]: *** [__modpost] Error 1

It would have been possible to just export min_low_pfn but in the end
pfn_valid should return 1 for any pfn argument for which a struct page
exists so using min_low_pfn was wrong anyway.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
arch/mips/include/asm/page.h | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index da9bd7d..ccb77ec 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -175,14 +175,13 @@ typedef struct { unsigned long pgprot; } pgprot_t;

#ifdef CONFIG_FLATMEM

-#define pfn_valid(pfn) \
-({ \
- unsigned long __pfn = (pfn); \
- /* avoid <linux/bootmem.h> include hell */ \
- extern unsigned long min_low_pfn; \
- \
- __pfn >= min_low_pfn && __pfn < max_mapnr; \
-})
+static inline int pfn_valid(unsigned long pfn)
+{
+ /* avoid <linux/mm.h> include hell */
+ extern unsigned long max_mapnr;
+
+ return pfn >= ARCH_PFN_OFFSET && pfn < max_mapnr;
+}

#elif defined(CONFIG_SPARSEMEM)

--
1.8.3.2


\
 
 \ /
  Last update: 2013-09-02 12:21    [W:0.204 / U:0.264 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site