linux-kernel - [PATCH] MIPS: fix 64-bit kernel build

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Date:	Mon, 21 Jan 2013 13:19:19 +0200
From:	Aaro Koskinen <aaro.koskinen@....fi>
To:	Ralf Baechle <ralf@...ux-mips.org>, linux-mips@...ux-mips.org,
	linux-kernel@...r.kernel.org
Cc:	Aaro Koskinen <aaro.koskinen@....fi>
Subject: [PATCH] MIPS: fix 64-bit kernel build

Commit d3ce88431892b703b04769566338a89eda6b0477 (MIPS: Fix modpost
error in modules attepting to use virt_addr_valid()) in 3.8-rc3 broke
the 64-bit MIPS build:

  LD      init/built-in.o
kernel/built-in.o: In function `memory_bm_free':
snapshot.c:(.text+0x3c76c): undefined reference to `__virt_addr_valid'
snapshot.c:(.text+0x3c800): undefined reference to `__virt_addr_valid'
kernel/built-in.o: In function `snapshot_write_next':
(.text+0x3e094): undefined reference to `__virt_addr_valid'
kernel/built-in.o: In function `snapshot_write_next':
(.text+0x3e468): undefined reference to `__virt_addr_valid'

Fix by providing __virt_addr_valid also when CONFIG_32BIT is not set.

Signed-off-by: Aaro Koskinen <aaro.koskinen@....fi>
---
 arch/mips/mm/Makefile  |    6 +++---
 arch/mips/mm/ioremap.c |    4 ++++
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile
index 90ceb963..cbfec8c 100644
--- a/arch/mips/mm/Makefile
+++ b/arch/mips/mm/Makefile
@@ -3,10 +3,10 @@
 #
 
 obj-y				+= cache.o dma-default.o extable.o fault.o \
-				   gup.o init.o mmap.o page.o page-funcs.o \
-				   tlbex.o tlbex-fault.o uasm.o
+				   gup.o init.o ioremap.o mmap.o page.o \
+				   page-funcs.o tlbex.o tlbex-fault.o uasm.o
 
-obj-$(CONFIG_32BIT)		+= ioremap.o pgtable-32.o
+obj-$(CONFIG_32BIT)		+= pgtable-32.o
 obj-$(CONFIG_64BIT)		+= pgtable-64.o
 obj-$(CONFIG_HIGHMEM)		+= highmem.o
 obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
diff --git a/arch/mips/mm/ioremap.c b/arch/mips/mm/ioremap.c
index 7657fd2..a7a14e3 100644
--- a/arch/mips/mm/ioremap.c
+++ b/arch/mips/mm/ioremap.c
@@ -16,6 +16,8 @@
 #include <asm/io.h>
 #include <asm/tlbflush.h>
 
+#ifdef CONFIG_32BIT
+
 static inline void remap_area_pte(pte_t * pte, unsigned long address,
 	phys_t size, phys_t phys_addr, unsigned long flags)
 {
@@ -191,6 +193,8 @@ void __iounmap(const volatile void __iomem *addr)
 EXPORT_SYMBOL(__ioremap);
 EXPORT_SYMBOL(__iounmap);
 
+#endif /* CONFIG_32BIT */
+
 int __virt_addr_valid(const volatile void *kaddr)
 {
 	return pfn_valid(PFN_DOWN(virt_to_phys(kaddr)));
-- 
1.7.10.4

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