Yeah - but the phrase is both clicky, and a good warning for folks unfamiliar with Linus' communication style.

Diplomacy and tender feelings aside - the CEO yelling "HELL, NO!" can prevent an enormous amount of wasted time and talk.

Lashing out and common sense aren't mutually exclusive. I.e you can lash out as someone with a message containing common sense information. I agree the headline is a bit exaggerated, but it's not incorrect.

I also don't think endianess is common sense. Maybe among experienced kernel developers it is, but even Linus had to Google to see what the argument was. I don't think Linus is common, inexperienced, or dumb

That has existed for the last four years in the `Zbb` extension which is implemented in the most common RISC-V Linux SoC (JH7110, 2023) and anything more recent implementing RVA22 e.g. the SpacemiT chips. Also the P550 ones such as EIC7700X.

The THead cores from 2019 (C906, C910) that precede the Zbb spec by a couple of years implement their own custom instruction.

The only reasonably common Linux core that doesn't have byte reverse is the 2018 U54, used in the HiFive Unleashed (~500 made) and the Microchip Polarfire Soc and PIC64GX ranges.