Hey, Following on from [1] in which Yangyu reported kernel panics for a riscv,isa string containing "rv64ima_Zifencei", as the parser got confused by the capital letter, here's a small change to the parser to handle invalid extensions starting with capital & the removal of some inaccurate wording from the dt-binding. Cheers, Conor. 1 - https://lore.kernel.org/all/tencent_1647475C9618C390BEC601BE2CC1206D0C07@xxxxxx/ CC: Paul Walmsley <paul.walmsley@xxxxxxxxxx> CC: Palmer Dabbelt <palmer@xxxxxxxxxxx> CC: Rob Herring <robh+dt@xxxxxxxxxx> CC: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx> CC: Wende Tan <twd2.me@xxxxxxxxx> CC: Soha Jin <soha@xxxxxxxxx> CC: Hongren Zheng <i@xxxxxxxxxxx> CC: Yangyu Chen <cyy@xxxxxxxxxxxx> CC: devicetree@xxxxxxxxxxxxxxx CC: linux-riscv@xxxxxxxxxxxxxxxxxxx Conor Dooley (2): RISC-V: skip parsing multi-letter extensions starting with caps dt-bindings: riscv: drop invalid comment about riscv,isa lower-case reasoning .../devicetree/bindings/riscv/cpus.yaml | 2 +- arch/riscv/kernel/cpufeature.c | 17 ++++++++++++++--- 2 files changed, 15 insertions(+), 4 deletions(-) -- 2.39.2