Hardy Griech

Checked something more: - bad case (1) happens with all ``-Wl,--lto-Ox`` - bad case (2) appears with ``-Wl,--lto-Ox``, x>=2

Hello Peter, many thanks for this valuable information. Seems to be some hard stuff. I will do my best and create a stripped down version of the problem and post...

I have created a simple test program (https://github.com/rgrr/playground/tree/feature/llvm-games/llvm-games/broken-lto). It seems that this is not LTO related: it is a bug/problem in the optimizer. In my project it rears up only...

Hmmm... not happy with that. llvm-link, llc and opt are still not included. Sorry that the discussion got a little bit diverted.

> I am nowhere close to a maintainer, and this is an unsolicited review, but I am trying to anticipate some points in hope to save you some time. Many...

> I realize that a lot of my comments might as well be addressed to USB CDC ECM, and open questions for the USB stack in general. In hope you...

> I do like how this class is a thin wrapper between the Ethernet and USB Class APIs. The ECM driver is even more direct (BTW Johann Fischer is the...

> Please fix the commit subjects, now they are all the same which is not good. The commit subject should indicate what the commit is changing. Done that and squashed...

> > it seems that only squashed PRs are merged, so the history of a PR seems to be irrelevant. > > This is definitely not true, the commit history...

> This is a recent modification on upstream Zephyr: `usbd_contex` had a typo and was adjusted to `usbd_context`. > Haha... first time I couldn't compile before pushing, because my environment...