On Tue, Dec 07, 2010 at 10:39:41AM +0100, richard -rw- weinberger wrote: > On Tue, Dec 7, 2010 at 8:29 AM, Jason Lunz <l...@acm.org> wrote: > > > > Allow parts of drivers/mtd to compile on uml by pushing the HAS_IOMEM > > dependencies down closer to the parts of mtd that actually need it. > > This allows enough of mtd to build to let jffs2 be used on uml. > > > > Signed-off-by: Jason Lunz <l...@acm.org> > > --- > > arch/um/Kconfig.rest | 4 +--- > > drivers/mtd/Kconfig | 1 - > > drivers/mtd/Makefile | 3 ++- > > drivers/mtd/chips/Kconfig | 4 ++++ > > drivers/mtd/devices/Kconfig | 8 ++++++++ > > drivers/mtd/maps/Kconfig | 4 ++++ > > drivers/mtd/mtdchar.c | 4 ++++ > > drivers/mtd/nand/Kconfig | 3 +++ > > drivers/mtd/onenand/Kconfig | 3 +++ > > include/linux/mtd/map.h | 2 ++ > > 10 files changed, 31 insertions(+), 5 deletions(-) > > > > diff --git a/arch/um/Kconfig.rest b/arch/um/Kconfig.rest > > index 0ccad0f..e34f399 100644 > > --- a/arch/um/Kconfig.rest > > +++ b/arch/um/Kconfig.rest > > @@ -28,9 +28,7 @@ source "drivers/scsi/Kconfig" > > > > source "drivers/md/Kconfig" > > > > -if BROKEN > > - source "drivers/mtd/Kconfig" > > -endif > > +source "drivers/mtd/Kconfig" > > drivers/mtd was already marked as broken when we moved over to git > (2.6.12-rc2). > > Do you exactly know why it was marked and fixes this patch all issues?
I don't know exactly why it was originally marked BROKEN. I imagine it was because most of the low-level mtd drivers need readb/writeb and friends, which don't exist on uml. But now that mtd has virtual ram- and blockdev-backed drivers, that's no longer sufficient reason to omit the whole subsystem. I can't claim that this fixes all possible issues of course, but I've privately been using this patch to run block2mtd under uml for years. My original motivation was to allow the use of jffs2 in a uml-based test environment and for that it's worked very well. Jason ------------------------------------------------------------------------------ What happens now with your Lotus Notes apps - do you make another costly upgrade, or settle for being marooned without product support? Time to move off Lotus Notes and onto the cloud with Force.com, apps are easier to build, use, and manage than apps on traditional platforms. Sign up for the Lotus Notes Migration Kit to learn more. http://p.sf.net/sfu/salesforce-d2d _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
