linux-kernel - Re: [PATCH] scripts/dtc: Update to upstream version v1.6.0-51-g183df9e9c2b9

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Date:   Thu, 11 Feb 2021 19:31:20 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Rob Herring <robh@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Frank Rowand <frowand.list@...il.com>,
        devicetree@...r.kernel.org
Subject: Re: [PATCH] scripts/dtc: Update to upstream version
 v1.6.0-51-g183df9e9c2b9

Hi Rob,

On Wed, Feb 03, 2021 at 03:26:03PM -0600, Rob Herring wrote:
> This adds the following commits from upstream:
> 
> 183df9e9c2b9 gitignore: Ignore the swp files
> 0db6d09584e1 gitignore: Add cscope files
> 307afa1a7be8 Update Jon Loeliger's email
> ca16a723fa9d fdtdump: Fix gcc11 warning
> 64990a272e8f srcpos: increase MAX_SRCFILE_DEPTH
> 163f0469bf2e dtc: Allow overlays to have .dtbo extension
> 3b01518e688d Set last_comp_version correctly in new dtb and fix potential version issues in fdt_open_into
> f7e5737f26aa tests: Fix overlay_overlay_nosugar test case
> 7cd5d5fe43d5 libfdt: Tweak description of assume-aligned load helpers
> a7c404099349 libfdt: Internally perform potentially unaligned loads
> bab85e48a6f4 meson: increase default timeout for tests
> f8b46098824d meson: do not assume python is installed, skip tests
> 30a56bce4f0b meson: fix -Wall warning
> 5e735860c478 libfdt: Check for 8-byte address alignment in fdt_ro_probe_()
> 67849a327927 build-sys: add meson build
> 05874d08212d pylibfdt: allow build out of tree
> 3bc3a6b9fe0c dtc: Fix signedness comparisons warnings: Wrap (-1)
> e1147b159e92 dtc: Fix signedness comparisons warnings: change types
> 04cf1fdc0fcf convert-dtsv0: Fix signedness comparisons warning
> b30013edb878 libfdt: Fix kernel-doc comments
> 
> Signed-off-by: Rob Herring <robh@...nel.org>

This patch causes my little-endian microblaze qemu emulations to fail
silently (no console output) in next-20210211. Reverting this patch
together with "scripts: dtc: Build fdtoverlay tool" fixes the problem.

Big endian microblaze emulations are not affected. I can't say if other
emulations are affected because I see too many boot failures in -next
to be able to track down all individual problems.

Guenter

---
Bisect log:

# bad: [671176b0016c80b3943cb5387312c886aba3308d] Add linux-next specific files for 20210211
# good: [92bf22614b21a2706f4993b278017e437f7785b3] Linux 5.11-rc7
git bisect start 'HEAD' 'v5.11-rc7'
# good: [d69fe59127a072f06e51bf101b82413056859ddc] Merge remote-tracking branch 'crypto/master'
git bisect good d69fe59127a072f06e51bf101b82413056859ddc
# bad: [9cbf23a8700e40ce348e5dc83c95add50c8689d3] Merge remote-tracking branch 'spi/for-next'
git bisect bad 9cbf23a8700e40ce348e5dc83c95add50c8689d3
# good: [635a8e981a1f34802668307e0b7bb8834d850a66] Merge remote-tracking branch 'drm-misc/for-linux-next'
git bisect good 635a8e981a1f34802668307e0b7bb8834d850a66
# good: [dbb24458a99eed64fdcc88630e8ac38376720f96] Merge remote-tracking branch 'block/for-next'
git bisect good dbb24458a99eed64fdcc88630e8ac38376720f96
# good: [f82648f1c7dd4709ff34cae8a98978fbf8e47d33] Merge remote-tracking branch 'integrity/next-integrity'
git bisect good f82648f1c7dd4709ff34cae8a98978fbf8e47d33
# good: [b18e8865643e421fc3537d7eb446f1eb9edfdf1b] Merge remote-tracking branch 'iommu/next'
git bisect good b18e8865643e421fc3537d7eb446f1eb9edfdf1b
# good: [6589daf8bb98c75ad1065edad87c099ffb9f5d87] dt-bindings: spi: sunxi: Add H616 compatible string
git bisect good 6589daf8bb98c75ad1065edad87c099ffb9f5d87
# bad: [322322d15b9b912bc8710c367a95a7de62220a72] dt-bindings: ethernet-controller: fix fixed-link specification
git bisect bad 322322d15b9b912bc8710c367a95a7de62220a72
# good: [6e09d75513d2670b7ab91ab3584fc5bcf2675a75] hwmon: (lm70) Use device_get_match_data()
git bisect good 6e09d75513d2670b7ab91ab3584fc5bcf2675a75
# good: [9183908e70e913d2db052588172968da55d82af5] dt-bindings: Fix errors in 'if' schemas
git bisect good 9183908e70e913d2db052588172968da55d82af5
# bad: [59b48a715107d5719b75250059864fa775837425] scripts: dtc: Remove the unused fdtdump.c file
git bisect bad 59b48a715107d5719b75250059864fa775837425
# bad: [79edff12060fe7772af08607eff50c0e2486c5ba] scripts/dtc: Update to upstream version v1.6.0-51-g183df9e9c2b9
git bisect bad 79edff12060fe7772af08607eff50c0e2486c5ba
# good: [b775f49fbc8b07b0c3a4079e6f09f192eaf6e92f] scripts: dtc: Fetch fdtoverlay.c from external DTC project
git bisect good b775f49fbc8b07b0c3a4079e6f09f192eaf6e92f
# first bad commit: [79edff12060fe7772af08607eff50c0e2486c5ba] scripts/dtc: Update to upstream version v1.6.0-51-g183df9e9c2b9