MIPS: math-emu: Avoid definition duplication for macro DPXMULT()

Avoid duplicate definition of macro DPXMULT(). Move its definition
to a header.

Signed-off-by: Aleksandar Markovic <[email protected]>
Cc: Douglas Leung <[email protected]>
Cc: Goran Ferenc <[email protected]>
Cc: James Hogan <[email protected]>
Cc: Miodrag Dinic <[email protected]>
Cc: Paul Burton <[email protected]>
Cc: Petar Jovanovic <[email protected]>
Cc: Raghu Gandham <[email protected]>
Cc: [email protected]
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/17584/
Signed-off-by: Ralf Baechle <[email protected]>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/mips/math-emu/ieee754dp.h b/arch/mips/math-emu/ieee754dp.h
index 9ba023004eb6..a56707b75282 100644
--- a/arch/mips/math-emu/ieee754dp.h
+++ b/arch/mips/math-emu/ieee754dp.h
@@ -55,6 +55,9 @@ static inline int ieee754dp_finite(union ieee754dp x)
 #define XDPSRS1(v)	\
 	(((v) >> 1) | ((v) & 1))
 
+/* 32bit * 32bit => 64bit unsigned integer multiplication */
+#define DPXMULT(x, y)	((u64)(x) * (u64)y)
+
 /* convert denormal to normalized with extended exponent */
 #define DPDNORMx(m,e) \
 	while ((m >> DP_FBITS) == 0) { m <<= 1; e--; }