v2: -- Check __CHAR_BIT__ and __SIZEOF_LONG__ rather than __aarch64__, __riscv, __loongarch__, thanks Ruoyao -- Update the code comment and commit message v1: -- Rebase on 6.4-rc6 -- Only unify uapi bitsperlong.h for arm64, riscv and loongarch -- Remove uapi bitsperlong.h of hexagon and microblaze in a new patch Here is the RFC patch: https://lore.kernel.org/linux-arch/1683615903-10862-1-git-send-email-yangtiezhu@xxxxxxxxxxx/ Tiezhu Yang (2): asm-generic: Unify uapi bitsperlong.h for arm64, riscv and loongarch tools arch: Remove uapi bitsperlong.h of hexagon and microblaze arch/arm64/include/uapi/asm/bitsperlong.h | 24 ------------------- arch/loongarch/include/uapi/asm/bitsperlong.h | 9 -------- arch/riscv/include/uapi/asm/bitsperlong.h | 14 ----------- include/uapi/asm-generic/bitsperlong.h | 11 +++++++++ tools/arch/arm64/include/uapi/asm/bitsperlong.h | 24 ------------------- tools/arch/hexagon/include/uapi/asm/bitsperlong.h | 27 ---------------------- .../arch/loongarch/include/uapi/asm/bitsperlong.h | 9 -------- .../arch/microblaze/include/uapi/asm/bitsperlong.h | 2 -- tools/arch/riscv/include/uapi/asm/bitsperlong.h | 14 ----------- tools/include/uapi/asm-generic/bitsperlong.h | 12 ++++++++++ tools/include/uapi/asm/bitsperlong.h | 6 ----- 11 files changed, 23 insertions(+), 129 deletions(-) delete mode 100644 arch/arm64/include/uapi/asm/bitsperlong.h delete mode 100644 arch/loongarch/include/uapi/asm/bitsperlong.h delete mode 100644 arch/riscv/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/arm64/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/hexagon/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/loongarch/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/microblaze/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/riscv/include/uapi/asm/bitsperlong.h -- 2.1.0