This is a note to let you know that I've just added the patch titled
MIPS: Rewrite pfn_valid to work in modules, too.
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mips-rewrite-pfn_valid-to-work-in-modules-too.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From linux@xxxxxxxxxxxx Fri Aug 16 05:40:22 2013
From: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Date: Thu, 15 Aug 2013 22:35:53 -0700
Subject: MIPS: Rewrite pfn_valid to work in modules, too.
To: linux-stable@xxxxxxxxxxxxxxx
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Ralf Baechle <ralf@xxxxxxxxxxxxxx>, Guenter Roeck <linux@xxxxxxxxxxxx>
Message-ID: <1376631353-26726-1-git-send-email-linux@xxxxxxxxxxxx>
From: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Upstream commit 8b9232141bf40788cce31f893c13f344ec31ee66.
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.
[Backport to 3.4 kernel. Applies cleanly on top of current 3.4 patch queue,
and fixes "make ARCH=mips allmodconfig; make ARCH=mips" build problem. - Guenter]
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/include/asm/page.h | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -175,14 +175,15 @@ typedef struct { unsigned long pgprot; }
#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; \
-})
+#ifndef __ASSEMBLY__
+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;
+}
+#endif
#elif defined(CONFIG_SPARSEMEM)
Patches currently in stable-queue which might be from ralf@xxxxxxxxxxxxxx are
queue-3.4/mips-expose-missing-pci_io-map-unmap-declarations.patch
queue-3.4/sound-fix-make-allmodconfig-on-mips.patch
queue-3.4/mips-rewrite-pfn_valid-to-work-in-modules-too.patch
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