3.2.70-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: John David Anglin <dave.anglin@xxxxxxxx>
commit ca0ad83da17b6ba07f9eb5902e69daac90c4fa61 upstream.
The Debian experimental linux source package (3.8.5-1) build fails
with the following errors:
...
MODPOST 2016 modules
ERROR: "__ucmpdi2" [fs/btrfs/btrfs.ko] undefined!
ERROR: "__ucmpdi2" [drivers/md/dm-verity.ko] undefined!
The attached patch resolves this problem. It is based on the s390
implementation of ucmpdi2.c.
Signed-off-by: John David Anglin <dave.anglin@xxxxxxxx>
Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxxxxx>
Signed-off-by: Helge Deller <deller@xxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
arch/parisc/kernel/parisc_ksyms.c | 2 ++
arch/parisc/lib/Makefile | 3 ++-
arch/parisc/lib/ucmpdi2.c | 25 +++++++++++++++++++++++++
3 files changed, 29 insertions(+), 1 deletion(-)
create mode 100644 arch/parisc/lib/ucmpdi2.c
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -121,11 +121,13 @@ extern void __ashrdi3(void);
extern void __ashldi3(void);
extern void __lshrdi3(void);
extern void __muldi3(void);
+extern void __ucmpdi2(void);
EXPORT_SYMBOL(__ashrdi3);
EXPORT_SYMBOL(__ashldi3);
EXPORT_SYMBOL(__lshrdi3);
EXPORT_SYMBOL(__muldi3);
+EXPORT_SYMBOL(__ucmpdi2);
asmlinkage void * __canonicalize_funcptr_for_compare(void *);
EXPORT_SYMBOL(__canonicalize_funcptr_for_compare);
--- a/arch/parisc/lib/Makefile
+++ b/arch/parisc/lib/Makefile
@@ -2,6 +2,7 @@
# Makefile for parisc-specific library files
#
-lib-y := lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o
+lib-y := lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o \
+ ucmpdi2.o
obj-y := iomap.o
--- /dev/null
+++ b/arch/parisc/lib/ucmpdi2.c
@@ -0,0 +1,25 @@
+#include <linux/module.h>
+
+union ull_union {
+ unsigned long long ull;
+ struct {
+ unsigned int high;
+ unsigned int low;
+ } ui;
+};
+
+int __ucmpdi2(unsigned long long a, unsigned long long b)
+{
+ union ull_union au = {.ull = a};
+ union ull_union bu = {.ull = b};
+
+ if (au.ui.high < bu.ui.high)
+ return 0;
+ else if (au.ui.high > bu.ui.high)
+ return 2;
+ if (au.ui.low < bu.ui.low)
+ return 0;
+ else if (au.ui.low > bu.ui.low)
+ return 2;
+ return 1;
+}
--
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