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 <will@xxxxxxxxxx> wrote: > > > > On Mon, Mar 01, 2021 at 08:19:32AM -0600, Rob Herring wrote: > > > On Thu, Feb 25, 2021 at 6:59 AM Will Deacon <will@xxxxxxxxxx> wrote: > > > > 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@xxxxxxxxx/ > https://lore.kernel.org/linuxppc-dev/1551469472-53043-2-git-send-email-danielwa@xxxxxxxxx/ > https://lore.kernel.org/linuxppc-dev/1551469472-53043-3-git-send-email-danielwa@xxxxxxxxx/ > > (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