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Date: Wed, 13 May 2015 10:34:41 +0200 From: Ingo Molnar <mingo@...nel.org> To: Andrew Morton <akpm@...ux-foundation.org>, Jonathan Corbet <corbet@....net> Cc: Peter Zijlstra <peterz@...radead.org>, Josh Triplett <josh@...htriplett.org>, Andy Lutomirski <luto@...capital.net>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, Thomas Gleixner <tglx@...utronix.de>, Linus Torvalds <torvalds@...ux-foundation.org>, linux-api@...r.kernel.org, linux-kernel@...r.kernel.org, x86@...nel.org, linux-arch@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>, Borislav Petkov <bp@...en8.de> Subject: [RFC PATCH] Documentation/arch: Add Documentation/arch-TODO * Andrew Morton <akpm@...ux-foundation.org> wrote: > On Tue, 12 May 2015 23:38:43 +0200 Peter Zijlstra <peterz@...radead.org> wrote: > > > > with the expectation that other architectures will follow along, > > > but this doesn't happen. The arch maintainers simply didn't > > > know about it or nobody nags them. Nothing happens and > > > inconsistencies hang around for years. eg, > > > http://lkml.iu.edu/hypermail/linux/kernel/1504.2/04993.html > > > > > > I'm thinking we should find a way to do this better. One way > > > might be to maintain a Documentation/arch-todo which identifies > > > each item, has a little list of what-to-do instructions and > > > perhaps a list of the not-yet-done architectures. Basically a > > > way for everyone to communicate at the arch maintainers. > > > > If only there was a linux-arch list to which arch maintainers > > should subscribe... oh wait :-) > > It was I who got linux-arch established, so I'm fairly familiar with > it. (12 years ago, gad). > > I don't think it's been very successful, particularly for this > purpose. A whole pile of randomly cc'ed lkml overflow which we're > relying on each individual maintainer to sift through and pluck out > particular action items then later remember to implement them. It's > disorganized and has too many cracks for things to fall through. Yes, a mailing list is indeed not a very good TODO list. We need a persistent post-it, and Documentation/arch-TODO (note the capital letters, we might as well shout?) sounds like a good place. I'd suggest making it tabular, as per the patch below. If it gets too large we can split it into multiple tables. I'd like people to have a good look whether I messed up any entry, and I'd be happy to add new items as well. Thanks, Ingo =======================> >From 33a487046b16971564d323079f66fb63aa870f4d Mon Sep 17 00:00:00 2001 From: Ingo Molnar <mingo@...nel.org> Date: Wed, 13 May 2015 10:30:11 +0200 Subject: [PATCH] Documentation/arch: Add Documentation/arch-TODO Add a TODO list for missing/incomplete architecture support for generic kernel features. Signed-off-by: Ingo Molnar <mingo@...nel.org> --- Documentation/arch-TODO | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/Documentation/arch-TODO b/Documentation/arch-TODO new file mode 100644 index 000000000000..bfa289639b1c --- /dev/null +++ b/Documentation/arch-TODO @@ -0,0 +1,47 @@ + +For generic kernel features that need architecture support, this is +the feature support matrix, for all upstream Linux architectures: + + ELF-ASLR:----------------------------------------------------------. + clockevents:---------------------------------------------------. | +modern-timekeeping:--------------------------------------------. | | + kgdb:-------------------------------------. | | | + context-tracking:------------------------------. | | | | + seccomp-filter:-----------------------. | | | | | + jump-labels:----------------. | | | | | | + stackprotector:---------. | | | | | | | + lockdep:--. | | | | | | | | + | | | | | | | | | +---------------------------------------------------------------------------------- + alpha | TODO | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO | + arc | ok | TODO | TODO | TODO | TODO | ok | ok | ok | TODO | + arm | ok | ok | ok | ok | ok | ok | TODO | ok | ok | + arm64 | ok | ok | ok | ok | ok | ok | ok | ok | ok | + avr32 | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO | + blackfin | ok | TODO | TODO | TODO | TODO | ok | TODO | ok | TODO | + c6x | TODO | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO | + cris | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok | TODO | + frv | TODO | TODO | TODO | TODO | TODO | TODO | ok | TODO | TODO | + hexagon | ok | TODO | TODO | TODO | TODO | ok | ok | ok | TODO | + ia64 | TODO | TODO | TODO | TODO | TODO | TODO | ok | TODO | TODO | + m32r | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | + m68k | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok | TODO | + metag | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO | + microblaze | ok | TODO | TODO | TODO | TODO | ok | ok | ok | TODO | + mips | ok | ok | ok | ok | ok | ok | ok | ok | ok | + mn10300 | TODO | TODO | TODO | TODO | TODO | ok | ok | ok | TODO | + nios2 | TODO | TODO | TODO | TODO | TODO | ok | ok | ok | TODO | + openrisc | TODO | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO | + parisc | TODO | TODO | TODO | TODO | TODO | TODO | ok | TODO | TODO | + powerpc | ok | TODO | ok | TODO | TODO | ok | ok | ok | ok | + s390 | ok | TODO | ok | ok | TODO | TODO | ok | ok | ok | + score | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO | + sh | ok | ok | TODO | TODO | TODO | ok | ok | ok | TODO | + sparc | ok | TODO | ok | TODO | ok | ok | ok | ok | TODO | + tile | ok | TODO | TODO | TODO | ok | ok | ok | ok | TODO | + um | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO | + unicore32 | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO | + x86 | ok | ok | ok | ok | ok | ok | ok | ok | ok | + xtensa | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO | +---------------------------------------------------------------------------------- + -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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