Hello Maxime, On Wed, Jul 12, 2023 at 02:52:38PM +0200, Maxime Ripard wrote: > On Wed, Jul 12, 2023 at 01:02:53PM +0200, Uwe Kleine-König wrote: > > > Background is that this makes merge conflicts easier to handle and detect. > > > > Really? > > FWIW, I agree with Christian here. > > > Each file (apart from include/drm/drm_crtc.h) is only touched once. So > > unless I'm missing something you don't get less or easier conflicts by > > doing it all in a single patch. But you gain the freedom to drop a > > patch for one driver without having to drop the rest with it. > > Not really, because the last patch removed the union anyway. So you have > to revert both the last patch, plus that driver one. And then you need > to add a TODO to remove that union eventually. Yes, with a single patch you have only one revert (but 194 files changed, 1264 insertions(+), 1296 deletions(-)) instead of two (one of them: 1 file changed, 9 insertions(+), 1 deletion(-); the other maybe a bit bigger). (And maybe you get away with just reverting the last patch.) With a single patch the TODO after a revert is "redo it all again (and prepare for a different set of conflicts)" while with the split series it's only "fix that one driver that was forgotten/borked" + reapply that 10 line patch. As the one who gets that TODO, I prefer the latter. So in sum: If your metric is "small count of reverted commits", you're right. If however your metric is: Better get 95% of this series' change in than maybe 0%, the split series is the way to do it. With me having spend ~3h on this series' changes, it's maybe understandable that I did it the way I did. FTR: This series was created on top of v6.5-rc1. If you apply it to drm-misc-next you get a (trivial) conflict in patch #2. If I consider to be the responsible maintainer who applies this series, I like being able to just do git am --skip then. FTR#2: In drm-misc-next is a new driver (drivers/gpu/drm/loongson/lsdc_crtc.c) so skipping the last patch for now might indeed be a good idea. > > So I still like the split version better, but I'm open to a more > > verbose reasoning from your side. > > You're doing only one thing here, really: you change the name of a > structure field. If it was shared between multiple maintainers, then > sure, splitting that up is easier for everyone, but this will go through > drm-misc, so I can't see the benefit it brings. I see your argument, but I think mine weights more. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | https://www.pengutronix.de/ |
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