Re: [PATCH] range-diff: fix some 'hdr-check' and sparse warnings

Jeff King [off-list ref] writes:

Other than that, our options seem to be:

  1. Live with it. IIRC we're already not sparse-clean, and Ramsay
     mostly looks at the diff to find new problems.

OK.

  2. Pass -Wno-non-pointer-null to sparse. Unfortunately that also
     disables more useful warnings (like passing "0" instead of NULL to
     a function).

Non starter, I am afraind.  The loss outweighs.

  3. Switch to NULL here, and adhere to that going forward.

This does not sound too bad.