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| author | John David Anglin <dave.anglin@bell.net> | 2013-04-20 19:41:06 +0000 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2015-08-07 00:32:19 +0100 |
| commit | 53774d1d22885f5bf14645baf551a3c4b6a6efba (patch) | |
| tree | 79f7386270c44068fa64bb433fa82c2ad44eec18 /arch | |
| parent | 6876b78ee008e416e3802e376cf9392e14b9c92a (diff) | |
| download | kernel_samsung_smdk4412-53774d1d22885f5bf14645baf551a3c4b6a6efba.zip kernel_samsung_smdk4412-53774d1d22885f5bf14645baf551a3c4b6a6efba.tar.gz kernel_samsung_smdk4412-53774d1d22885f5bf14645baf551a3c4b6a6efba.tar.bz2 | |
parisc: Provide __ucmpdi2 to resolve undefined references in 32 bit builds.
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@bell.net>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/parisc/kernel/parisc_ksyms.c | 2 | ||||
| -rw-r--r-- | arch/parisc/lib/Makefile | 3 | ||||
| -rw-r--r-- | arch/parisc/lib/ucmpdi2.c | 25 |
3 files changed, 29 insertions, 1 deletions
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c index a7bb757..c3f1be9 100644 --- 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); diff --git a/arch/parisc/lib/Makefile b/arch/parisc/lib/Makefile index 5f2e690..5651536 100644 --- 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 diff --git a/arch/parisc/lib/ucmpdi2.c b/arch/parisc/lib/ucmpdi2.c new file mode 100644 index 0000000..149c016 --- /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; +} |