Alex fixes manual#556
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As reported by lockdep, some patching was done without acquiring text_mutex, so there could be a race when mapping the page to patch since we use the same fixmap entry. Reported-by: Han Gao <rabenda.cn@gmail.com> Reported-by: Vivian Wang <wangruikang@iscas.ac.cn> Reported-by: Yao Zi <ziyao@disroot.org> Closes: https://lore.kernel.org/linux-riscv/aGODMpq7TGINddzM@pie.lan/ Tested-by: Yao Zi <ziyao@disroot.org> Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
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July 3, 2025 09:58
Now that DYNAMIC_FTRACE was introduced, there is no need to support static ftrace as it is way less performant. This simplifies the code and prevents build failures as reported by kernel test robot when !DYNAMIC_FTRACE. Fixes: b2137c3 ("riscv: ftrace: prepare ftrace for atomic code patching") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202506191949.o3SMu8Zn-lkp@intel.com/ Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
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