Re: [PATCH 0/2] Fix CMDLINE_EXTEND handling for FDT "bootargs"

On Mon, Mar 01, 2021 at 11:26:14AM -0600, Rob Herring wrote:

+PPC folks and Daniel W

On Mon, Mar 1, 2021 at 8:42 AM Will Deacon [off-list ref] wrote:

quoted

On Mon, Mar 01, 2021 at 08:19:32AM -0600, Rob Herring wrote:

quoted

On Thu, Feb 25, 2021 at 6:59 AM Will Deacon [off-list ref] wrote:

quoted

We recently [1] enabled support for CMDLINE_EXTEND on arm64, however
when I started looking at replacing Android's out-of-tree implementation [2]

Did anyone go read the common, reworked version of all this I
referenced that supports prepend and append. Here it is again[1].
Maybe I should have been more assertive there and said 'extend' is
ambiguous.

I tried reading that, but (a) most of the series is not in the mailing list
archives and (b) the patch that _is_ doesn't touch CMDLINE_EXTEND at all.
Right now the code in mainline does the opposite of what it's documented to
do.

Actually, there is a newer version I found:

https://lore.kernel.org/linuxppc-dev/1551469472-53043-1-git-send-email-danielwa@cisco.com/ (local)
https://lore.kernel.org/linuxppc-dev/1551469472-53043-2-git-send-email-danielwa@cisco.com/ (local)
https://lore.kernel.org/linuxppc-dev/1551469472-53043-3-git-send-email-danielwa@cisco.com/ (local)

(Once again, there's some weird threading going on)

I'm happy to work with anyone to resubmit the changes. We currently use the
changes in Cisco, and we have used them for many years.

I was planning to update and resubmit since someone has recently inquired about
why it wasn't upstream.

Daniel