On Thu, 18 Mar 2021, Christoph Hellwig wrote:

The legay ide driver has been replace with libata startin in 2003 and has

 s/legay/legacy/;s/replace/replaced/;s/startin/startin/ (though I'd say 
"back in" instead in the latter case).

been scheduled for removal for a while.  Finally kill it off so that we
can start cleaning up various bits of cruft it forced on the block layer.

 You need to adjust Documentation/admin-guide/kernel-parameters.txt too, 
i.e. remove all the `ide*' options, possibly more (I haven't checked in 
detail).

  Maciej