On Mon, Mar 1, 2021 at 11:45 AM Christophe Leroy <christophe.leroy@xxxxxxxxxx> wrote: > > > > Le 01/03/2021 à 18:26, Rob Herring a écrit : > > +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/ > > This was seen as too much intrusive into powerpc. It looked like the main issue was string functions for KASAN? As far as being too complex, I think that will be needed if you look at all architectures and non-DT cases. > I proposed an alternative at > https://patchwork.ozlabs.org/project/linuxppc-dev/cover/cover.1554195798.git.christophe.leroy@xxxxxx/ but > never got any feedback. Didn't go to a list I subscribe to. In particular, if it had gone to DT list and into PW you would have gotten a reply from me. Rob
