On Wed, 19 Feb 2020 18:17:36 -0500, Ruben Safir said: > > 1) Start wading through the git log until you find the commit that > > changed the API. In either that commit, or a commit in the same series, > > whoever changed the API > > I don't think that will be a useful way to learn to code the kernel.
That was addressing the specific case of "I need to update an out of tree driver to a recent kernel". And I didn't say the kernel is impossible to learn - only that there's no special consideration given in-tree to beginning kernel hackers. If you don't already understand topics like locking and caching and file systems, you need to learn those elsewhere.
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