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asm-generic: partially revert "Unify uapi bitsperlong.h for arm64, riscv and loongarch" Unifying the asm-generic headers across 32-bit and 64-bit architectures based on the compiler provided macros was a good idea and appears to work with all user space, but it caused a regression when building old kernels on systems that have the new headers installed in /usr/include, as this combination trips an inconsistency in the kernel's own tools/include headers that are a mix of userspace and kernel-internal headers. This affects kernel builds on arm64, riscv64 and loongarch64 systems that might end up using the "#define __BITS_PER_LONG 32" default from the old tools headers. Backporting the commit into stable kernels would address this, but it would still break building kernels without that backport, and waste time for developers trying to understand the problem. arm64 build machines are rather common, and on riscv64 this can also happen in practice, but loongarch64 is probably new enough to not be used much for building old kernels, so only revert the bits for arm64 and riscv. Link: https://lore.kernel.org/all/20230731160402.GB1823389@dev-arch.thelio-3990X/ Reported-by: Nathan Chancellor <nathan@kernel.org> Fixes: 8386f58f8deda ("asm-generic: Unify uapi bitsperlong.h for arm64, riscv and loongarch") Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Tested-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> | 2 年前 | |
riscv: Add support for libdw This patch adds support for DWARF register mappings and libdw registers initialization, which is used by perf callchain analyzing when --call-graph=dwarf is given. Signed-off-by: Mao Han <han_mao@c-sky.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Greentime Hu <green.hu@gmail.com> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: linux-riscv <linux-riscv@lists.infradead.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Guo Ren <guoren@kernel.org> Tested-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> | 6 年前 | |
Replace HTTP links with HTTPS ones: RISC-V Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain \bxmlns\b: For each link, \bhttp://[^# \t\r\n]*(?:\w|/): If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com> | 5 年前 |
| 文件 | 最后提交记录 | 最后更新时间 |
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| 2 年前 | ||
| 6 年前 | ||
| 5 年前 |