On Thu, May 07, 2020 at 01:37:30PM +0200, David Hildenbrand wrote: > On 07.05.20 13:34, Michael S. Tsirkin wrote: > > On Thu, May 07, 2020 at 01:33:23PM +0200, David Hildenbrand wrote: > >>>> I get: > >>>> > >>>> error: sha1 information is lacking or useless (mm/memory_hotplug.c). > >>>> error: could not build fake ancestor > >>>> > >>>> which version is this against? Pls post patches on top of some tag > >>>> in Linus' tree if possible. > >>> > >>> As the cover states, latest linux-next. To be precise > >>> > >>> commit 6b43f715b6379433e8eb30aa9bcc99bd6a585f77 (tag: next-20200507, > >>> next/master) > >>> Author: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> > >>> Date: Thu May 7 18:11:31 2020 +1000 > >>> > >>> Add linux-next specific files for 20200507 > >>> > >> > >> The patches seem to apply cleanly on top of > >> > >> commit a811c1fa0a02c062555b54651065899437bacdbe (linus/master) > >> Merge: b9388959ba50 16f8036086a9 > >> Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> > >> Date: Wed May 6 20:53:22 2020 -0700 > >> > >> Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net > > > > Because you have the relevant hashes in your git tree not pruned yet. > > Do a new clone and they won't apply. > > > > Yeah, most probably, it knows how to merge. I'm used to sending all my > -mm stuff based on -next, so this here is different. Documentation/process/5.Posting.rst addresses this: Patches must be prepared against a specific version of the kernel. As a general rule, a patch should be based on the current mainline as found in Linus's git tree. When basing on mainline, start with a well-known release point - a stable or -rc release - rather than branching off the mainline at an arbitrary spot. It may become necessary to make versions against -mm, linux-next, or a subsystem tree, though, to facilitate wider testing and review. Depending on the area of your patch and what is going on elsewhere, basing a patch against these other trees can require a significant amount of work resolving conflicts and dealing with API changes. > I'll wait a bit and then send v4 based on latest linus/master, adding > the two acks and reshuffling the MAINTAINERS patch. Thanks. > > -- > Thanks, > > David / dhildenb
