frv compile error in set_pte()

I'm getting the follosing compile error in 2.6.18-rc5-mm1 (it might not 
be specific to -mm):

<--  snip  -->

...
  CC      arch/frv/mm/dma-alloc.o
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/arch/frv/mm/dma-alloc.c: In function 'consistent_alloc':
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/arch/frv/mm/dma-alloc.c:66: error: impossible constraint in 'asm'
make[2]: *** [arch/frv/mm/dma-alloc.o] Error 1

<--  snip  -->

The problem is the following code in include/asm-frv/pgtable.h:

<--  snip  -->

#define set_pte(pteptr, pteval) \
do {                                                    \
        *(pteptr) = (pteval);                           \
        asm volatile("dcf %M0" :: "U"(*pteptr));        \
} while(0)

<--  snip  -->

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed


-- 
VGER BF report: H 1.45283e-06
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