[PATCH] fix do_xor_speed 64-bit devision issue on 32-bits arch

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I am trying to build a pnfs client on a 32 bit system  and the
pnfs-latest  kernel fails to compile. I get the following error

 >  Building modules, stage 2.
 >  TEST    posttest
 > MODPOST 2046 modules
 >ERROR: "__udivdi3" [crypto/xor.ko] undefined!
 >make[1]: *** [__modpost] Error 1
 >make: *** [modules] Error 2
 >make: *** Waiting for unfinished jobs....
 >Succeed: decoded and checked 1244492 instructions

Reported-by: Rita Sequeira <rita.prajval@xxxxxxxxx>
Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxx>
---

untested patch yet...

 crypto/xor.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/crypto/xor.c b/crypto/xor.c
index 65433f5..2151ded 100644
--- a/crypto/xor.c
+++ b/crypto/xor.c
@@ -95,7 +95,8 @@
 
 	ns_end -= ns_begin;
 	if (ns_end > 0)
-		speed = BENCH_SIZE / 1024 * count * NSEC_PER_SEC / ns_end;
+		speed = BENCH_SIZE / 1024 * count *
+				(unsigned)(NSEC_PER_SEC / ns_end);
 	else
 		speed = 17;
 	tmpl->speed = speed;
-- 
1.7.6

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