MPILIB: disable usage of floating point registers on parisc

The umul_ppmm() macro for parisc uses the xmpyu assembler statement which does calculation via a floating point register.

But usage of floating point registers inside the Linux kernel are not allowed and gcc will stop compilation due to the -mdisable-fpregs compiler option.

Fix this by disabling the umul_ppmm() and udiv_qrnnd() macros. The mpilib will then use the generic built-in implementations instead.

Signed-off-by Helge Deller <[email protected]>

lib/mpi/longlong.h +3 -3

index 095ab15..d411355 100644
@@ -318,7 +318,8 @@ extern UDItype __udiv_qrnnd();
             "rM" ((USItype)(bh)), \
             "rM" ((USItype)(al)), \
             "rM" ((USItype)(bl)))
-#if defined(_PA_RISC1_1)
+#if 0 && defined(_PA_RISC1_1)
+/* xmpyu uses floating point register which is not allowed in Linux kernel. */
 #define umul_ppmm(wh, wl, u, v) \
 do { \
        union {UDItype __ll; \

@@ -337,7 +338,7 @@ do { \
 #define UMUL_TIME 40
 #define UDIV_TIME 80
 #endif
-#ifndef LONGLONG_STANDALONE
+#if 0 /* #ifndef LONGLONG_STANDALONE */
 #define udiv_qrnnd(q, r, n1, n0, d) \
 do { USItype __r; \
        (q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
--

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