On Mon, Aug 02, 2021 at 10:28:02AM -0700, Nathan Chancellor wrote:

On 8/2/2021 7:43 AM, ci_notify@linaro.org wrote:

...

Successfully identified regression in *linux* in CI configuration tcwg_kernel/llvm-release-arm-stable-allyesconfig. So far, this commit has regressed CI configurations:

• tcwg_kernel/llvm-release-arm-stable-allyesconfig

Culprit:

<cut> commit 341db343768bc44f3512facc464021730d64071c Author: Linus Walleij <linus.walleij@linaro.org> Date: Sun May 23 00:50:39 2021 +0200

power: supply: ab8500: Move to componentized binding
[ Upstream commit 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb ]
The driver has problems with the different components of
the charging code racing with each other to probe().
This results in all four subdrivers populating battery
information to ascertain that it is populated for their
own needs for example.
Fix this by using component probing and thus expressing
to the kernel that these are dependent components.
The probes can happen in any order and will only acquire
resources such as state container, regulators and
interrupts and initialize the data structures, but no
execution happens until the .bind() callback is called.
The charging driver is the main component and binds
first, then bind in order the three subcomponents:
ab8500-fg, ab8500-btemp and ab8500-chargalg.
Do some housekeeping while we are moving the code around.
Like use devm_* for IRQs so as to cut down on some
boilerplate.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

</cut>

Results regressed to (for first_bad == 341db343768bc44f3512facc464021730d64071c) # reset_artifacts: -10 # build_abe binutils: -9 # build_llvm: -5 # build_abe qemu: -2 # linux_n_obj: 19634 # First few build errors in logs: # 00:03:07 drivers/power/supply/ab8500_fg.c:3061:32: error: use of undeclared identifier 'np' # 00:03:08 make[3]: *** [drivers/power/supply/ab8500_fg.o] Error 1 # 00:03:10 make[2]: *** [drivers/power/supply] Error 2 # 00:03:10 make[1]: *** [drivers/power] Error 2 # 00:04:05 make: *** [drivers] Error 2

Greg and Sasha,

Please cherry pick upstream commit 7e2bb83c617f ("power: supply: ab8500: Call battery population once") to resolve this build error on 5.13.

Queued up, thanks!