lib/mpi/generic_mpih-mul1.c:50:3: error: impossible constraint in 'asm'

Hi Dmitry,

FYI, kernel build failed on

commit: d9c46b184fcfd33c85a7dc48a653435a08e21f56 crypto: GnuPG based MPI lib - make files (part 3)
config: mips-allmodconfig

All error/warnings:

lib/mpi/generic_mpih-mul1.c: In function 'mpihelp_mul_1':
lib/mpi/generic_mpih-mul1.c:50:3: error: impossible constraint in 'asm'

The code at line 50 (and possibly the error) was first introduced by commit:

cdec9cb crypto: GnuPG based MPI lib - source files (part 1)

---
0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu, Yuanhan Liu Intel Corporation