[patch 11/23] Sparc64 quad-float emulation fix

[Greg KH]

-stable review patch.  If anyone has any objections, please let us know.

------------------
From: David Miller <davem@xxxxxxxxxxxxx>

[SPARC64]: Fix quad-float multiply emulation.

Something is wrong with the 3-multiply (vs. 4-multiply) optimized
version of _FP_MUL_MEAT_2_*(), so just use the slower version
which actually computes correct values.

Noticed by Rene Rebe

Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 include/asm-sparc64/sfp-machine.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.17.7.orig/include/asm-sparc64/sfp-machine.h
+++ linux-2.6.17.7/include/asm-sparc64/sfp-machine.h
@@ -34,7 +34,7 @@
 #define _FP_MUL_MEAT_D(R,X,Y)					\
   _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
 #define _FP_MUL_MEAT_Q(R,X,Y)					\
-  _FP_MUL_MEAT_2_wide_3mul(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
 
 #define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
 #define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_1_udiv_norm(D,R,X,Y)

--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/