[PATCH v7 0/3] riscv: fix PIO helpers and add optimized percpu ops

[Yunhui Cui]

Changes in v7:
- Address the Sashiko comment about inconsistent AND helper naming: rename
  the RISC-V internal percpu helpers from andnot to and, and make all
  this_cpu_and_*() wrappers pass the operand directly.  This is a readability
  cleanup only; the generated operations still implement the same plain AND
  semantics required by this_cpu_and().
- Undefine internal percpu helper macros prior to including <asm-generic/percpu.h>
  as recommended by bpf-ci/Sashiko review. This prevents macro leakage into the
  global namespace and has no impact on generated code or runtime behavior.

Yunhui Cui (3):
  riscv: io: avoid null-pointer arithmetic in PIO helpers
  riscv: introduce percpu.h into include/asm
  riscv: store percpu offset into thread_info

 arch/riscv/include/asm/asm.h         |   6 +-
 arch/riscv/include/asm/io.h          |   8 +
 arch/riscv/include/asm/percpu.h      | 300 +++++++++++++++++++++++++++
 arch/riscv/include/asm/switch_to.h   |   8 +
 arch/riscv/include/asm/thread_info.h |   3 +-
 arch/riscv/kernel/asm-offsets.c      |   1 +
 arch/riscv/kernel/smpboot.c          |   8 +
 arch/riscv/net/bpf_jit_comp64.c      |   9 +-
 8 files changed, 329 insertions(+), 14 deletions(-)
 create mode 100644 arch/riscv/include/asm/percpu.h

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2.39.5