On Wed, Jul 12, 2023 at 03:38:03PM +0200, Uwe Kleine-König wrote: > 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. I guess that's where we disagree: I don't see the point of having 95% of it, either 0 or 100. > With me having spend ~3h on this series' changes, it's maybe > understandable that I did it the way I did. I'm sorry, but that's never been an argument? I'm sure you and I both have had series that took much longer dropped because it wasn't the right approach. > 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. Or we can ask that the driver is based on drm-misc-next ... > 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. ... which is going to fix that one too. Maxime
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