Re: git: 1dec3639fd0c - main - sysutils/u-boot: Update to 2021.07

On Sun, 11 Jul 2021 11:16:50 +0200, Mark Millard wrote:
> 
> On 2021-Jul-11, at 01:34, Herbert J. Skuhra wrote:
> 
> > On Sun, 11 Jul 2021 02:29:57 +0200, Mark Millard wrote:
> >> 
> >> Some more context from looking around (I'm still trying
> >> to get use to git ways of finding things):
> > 
> > Thanks.
> > 
> > I used a simple 'git log' and checked the GH page:
> > 
> > https://github.com/u-boot/u-boot/commits/master?after=490101a5e5df65238b900b21b81361bc4b13da2e+2449&branch=master
> > 
> > Both show the commits in this order:
> > 
> > 78af81c345430a9088235f48d302922955d2499f
> > 63af92e837f3d7c21ab5fc4a96ffcbf202efaf90
> > [..]
> 
> So I should not have said to bisect master but instead
> the sequence of contributions to v2021.04-rc4 , as that
> is apparently what tracks the contributions to the first
> broken v2021.04-rc* and master is different.
> 
> > At the moment I have no idea how to bisect further. git diff and
> > reverting some parts manually?
> 
> For . . .
> 
> v2021.04-rc3 (c5219c4) in master was followed by (in sequence):
> 
> 60a376b: configs: RPi2: Disable EFI Grub workaround
> 76cffd5: drivers: mmc: iproc_sdhci: enable HS200 mode
> 0267539: MAINTAINERS: Update info for Raspberry Pi
> 3ac0523: rng: iproc_rng200: Enable support for RPi4 armv7
> fae165b: configs: rpi4_32: Enable iProc RNG200
> 20ecfbe: configs: Resync with savedefconfig
> 78af81c: Merge tag 'rpi-next-2021.04.2' of https://source.denx.de/u-boot/custodians/u-boot-raspberrypi

OK, I get this commit list by running

% git log 63af92e837f3d7c21ab5fc4a96ffcbf202efaf90..78af81c345430a9088235f48d302922955d2499f

> So "just":
> 
> A) check out 3ac0523, build, test
> B) Based on the result: check out whichever of 76cffd5 and 20ecfbe, build, test
> C) Based on the result: . . .
> 
> And the 3 tries should do it for being sure where
> the good-followed-by-bad pair is. (If 60a376b is
> bad, then c5219c4 should be the good side of the
> good-then-bad pair.)
> 
> (I've not dealt with the "build" part of that
> "just".)

Sorry, I don't get it. :-(

Commit 60a376b09332a0cf061b3c1102913287ea055dc1 is a one line change.

But if I checkout 63af92e837f3d7c21ab5fc4a96ffcbf202efaf90 and
60a376b09332a0cf061b3c1102913287ea055dc1 and do a "diff -ruN" or run "git diff
63af92e837f3d7c21ab5fc4a96ffcbf202efaf90..60a376b09332a0cf061b3c1102913287ea055dc1"
I see 175 modified files. Hmm, I obviously need "git diff c5219c4..60a376b".

For commit 76cffd579553e86b55d783df7e490d3c05e46d89 the output matches.

I think I have to study some books about git.

Anyway, I'll checkout the above commits and post the results afterwards 

--
Herbert