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Subject[PATCH 0/4] MIPS: Introduce isa-rev.h to define MIPS_ISA_REV
Date
There are multiple instances in the kernel where we need to include or
exclude particular instructions based on the ISA revision of the target
processor. For MIPS32 / MIPS64, the compiler exports a __mips_isa_rev
define. However, when targeting MIPS I - V, this define is absent. This
leads to each use of __mips_isa_rev having to check that it is defined
first. To simplify this, this series introduces the isa-rev.h header
which always exports MIPS_ISA_REV (the name is changed so as to avoid
confusion with the compiler builtin and to avoid accidentally using the
builtin). All uses of __mips_isa_rev are then replaced with the new
define, removing the check that it is defined.

Applies on v4.16-rc1


Matt Redfearn (4):
MIPS: Introduce isa-rev.h to define MIPS_ISA_REV
MIPS: cpu-features.h: Replace __mips_isa_rev with MIPS_ISA_REV
MIPS: BPF: Replace __mips_isa_rev with MIPS_ISA_REV
MIPS: VDSO: Replace __mips_isa_rev with MIPS_ISA_REV

arch/mips/include/asm/cpu-features.h | 5 +++--
arch/mips/include/asm/isa-rev.h | 24 ++++++++++++++++++++++++
arch/mips/net/bpf_jit_asm.S | 9 +++++----
arch/mips/vdso/elf.S | 10 ++++------
4 files changed, 36 insertions(+), 12 deletions(-)
create mode 100644 arch/mips/include/asm/isa-rev.h

--
2.7.4

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