linux-kernel - [PATCH v2 0/7] Module relocation fixes and asm/insn.h header

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Message-Id: <20220131182720.236065-1-kernel@esmil.dk>
Date:   Mon, 31 Jan 2022 19:27:13 +0100
From:   Emil Renner Berthing <kernel@...il.dk>
To:     linux-riscv@...ts.infradead.org
Cc:     Emil Renner Berthing <kernel@...il.dk>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Peter Zijlstra <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Jason Baron <jbaron@...mai.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        Alexandre Ghiti <alex@...ti.fr>,
        Jisheng Zhang <jszhang@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/7] Module relocation fixes and asm/insn.h header

Apologies! I messed up v1. Please consider this patch set only.

The first patch removes a bunch of code from the asm/module.h which is
included in almost all drivers through linux/module.h. Next are two
patches to fix unaligned access when doing module relocations and do
proper range checks for auipc+jalr offsets.

I'm a little less confident about the following patches, so consider
this more of an RFC for those. The idea is to consolidate the RISC-V
instruction generation and manipulation similar to arm64's asm/insn.h
header.

/Emil

Emil Renner Berthing (7):
  riscv: Remove unneeded definitions from asm/module.h
  riscv: Avoid unaligned access when relocating modules
  riscv: Fix auipc+jalr relocation range checks
  riscv: Add asm/insn.h header
  riscv: Use asm/insn.h for module relocations
  riscv: Use asm/insn.h to generate plt entries
  riscv: Use asm/insn.h for jump labels

 arch/riscv/include/asm/insn.h       | 121 ++++++++++++++
 arch/riscv/include/asm/module.h     |  87 ----------
 arch/riscv/kernel/jump_label.c      |  12 +-
 arch/riscv/kernel/module-sections.c |  71 +++++++++
 arch/riscv/kernel/module.c          | 237 +++++++++++++---------------
 5 files changed, 306 insertions(+), 222 deletions(-)
 create mode 100644 arch/riscv/include/asm/insn.h

-- 
2.35.1