Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

arch/mips/configs/ip27_defconfig

arch/mips/kernel/binfmt_elfn32.c

arch/mips/kernel/binfmt_elfo32.c

arch/mips/kernel/linux32.c

arch/mips/kernel/scall64-n32.S

arch/mips/kernel/signal32.c

arch/mips/kernel/signal_n32.c

arch/mips/kernel/smp.c

arch/mips/kernel/traps.c

arch/mips/mm/cex-sb1.S

arch/mips/pmc-sierra/yosemite/smp.c

arch/mips/sibyte/Kconfig

arch/mips/sibyte/bcm1480/irq.c

include/asm-mips/uaccess.h

include/asm-mips/unistd.h