build failure of mips decstation_r4k_defconfig with binutils-2_37

From: Sudip Mukherjee
Date: Tue Aug 17 2021 - 07:54:40 EST

Hi All,

While I was testing v5.4.142-rc2 I noticed mips build of
decstation_r4k_defconfig fails with binutils-2_37. The error is:

arch/mips/dec/prom/locore.S: Assembler messages:
arch/mips/dec/prom/locore.S:29: Error: opcode not supported on this
processor: r4600 (mips3) `rfe'

I have also reported this at