On Fri, Aug 11, 2023 at 02:54:56PM +0100, Mark Brown wrote:
On Thu, Aug 10, 2023 at 04:23:51PM -0400, Nícolas F. R. A. Prado wrote:
Introduce a new kselftest to detect devices that were declared in the Devicetree, and are expected to be probed by a driver, but weren't.
The test uses two lists: a list of compatibles that can match a Devicetree device to a driver, and a list of compatibles that should be ignored. The first is automatically generated from a script that parses the kernel source using Coccinelle, and will be run as part of building this test, therefore Coccinelle is a build-time dependency for this test. The list of compatibles to ignore is a hand-crafted list to capture the few exceptions of compatibles that are expected to match a driver but not be bound to it.
This doesn't appear to produce KTAP output which is going to make it less useful for generic kselftest runners.
Right, I'm going to need to rewrite it in C for that, but since I already had the shell script done, I decided to send it as is for the RFC, since I wanted to get feedback on the general approach more than anything.
Thanks, Nícolas