On Mon, Sep 25, 2017 at 06:37:28PM -0700, Linus Torvalds wrote: > Pulled and pushed out, but I'd like to note that sparse would have > caught this. Except we are so far away from being sparse-clean that > nobody runs it.
I tend to run sparse over the nvme code before sending pull request every time. But it's a fairly new codebase, so it it actually is clean. I wish we'd just default to running sparse at some point so people have to clean their shit up, as it catches a lot of useful things. But maybe for the default we want to tune it down a bit (e.g. don't warn about missing statics by default, skip the lock imbalance checks which while often useful also generate tons of false positives).

