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SubjectRe: RISC-V for-next/fixes (cont'd from PW sync)
Date
Conor Dooley <conor.dooley@microchip.com> writes:

> On Fri, Mar 29, 2024 at 07:46:38AM +0100, Alexandre Ghiti wrote:
>> On Wed, Mar 27, 2024 at 9:32 PM Conor Dooley <conor@kernel.org> wrote:
>> >
>> > On Wed, Mar 27, 2024 at 08:57:50PM +0100, Björn Töpel wrote:
>> > > Hi,
>> > >
>> > > I figured I'd put some words on the "how to update the RISC-V
>> > > for-next/fixes branches [1]" that came up on the patchwork call today.
>> > >
>> > > In RISC-V land, the for-next branch is used for features, and typically
>> > > sent as a couple of PRs to Linus when the merge window is open. The
>> > > fixes branch is sent as PR(s) between the RCs of a release.
>> > >
>> > > Today, the baseline for for-next/fixes is the CURRENT_RELEASE-rc1, and
>> > > features/fixes are based on that.
>> > >
>> > > This has IMO a couple of issues:
>> > >
>> > > 1. fixes is missing the non-RISC-V fixes from releases later than
>> > > -rc1, which makes it harder for contributors.
>>
>> The syzbot report [1] requires fixes in mm [2], if we don't update
>> fixes on top of the latest -rcX, we'll keep hitting this bug, so
>> rebasing -fixes on top of the latest -rcX is necessary to me.
>
> No non-ff rebasing of branches unless its 101% required, please. This
> seems like a justifiable reason to merge the rc it appears in into the
> riscv branches though.

Are you talking past each other? I'm *not* saying rebase (agree with
Conor!). I'm saying "let's move fixes up to the point to include the
merge (and whatever on Linus' tip at the point of merge), i.e.
*ff-only*.

Now, rest your eyes on this fabulous cartoon:

Linus' master
|
v
o o <-- RISC-V fixes
| |
. .
. .

Linus accepts the PR...

o <-- Merge tag 'riscv-for-linus-meh-rc7'...
|\
o o <-- RISC-V fixes
| |
. .
. .

and then move fixes, git merge --ff-only:

o <-- Merge tag 'riscv-for-linus-meh-rc7'..., RISC-V fixes
|\
o o
| |
. .
. .

Clearer?


Björn

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