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From 6a6f108b59e47581d93cbc6bdc604ee84f1bb791 Mon Sep 17 00:00:00 2001
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From: Nick Rosbrook <nick.rosbrook@canonical.com>
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Date: Wed, 7 Sep 2022 13:25:13 -0400
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Subject: [PATCH] pstore: do not try to load all known pstore modules
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Commit 70e74a5997 ("pstore: Run after modules are loaded") added After=
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and Wants= entries for all known kernel modules providing a pstore.
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While adding these dependencies on systems where one of the modules is
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not present, or not configured, should not have a real affect on the
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system, it can produce annoying error messages in the kernel log. E.g.
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"mtd device must be supplied (device name is empty)" when the mtdpstore
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module is not configured correctly.
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Since dependencies cannot be removed with drop-ins, if a distro wants to
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remove some of these modules from systemd-pstore.service, they need to
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patch units/systemd-pstore.service.in. On the other hand, if they want
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to append to the dependencies this can be done by shipping a drop-in.
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Since the original intent of the previous commit was to fix [1], which
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only requires the efi_pstore module, remove all other kernel module
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dependencies from systemd-pstore.service, and let distros ship drop-ins
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to add dependencies if needed.
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[1] https://github.com/systemd/systemd/issues/18540
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(cherry picked from commit 8b8bd621e1d16808678fc3afed257df1fa03a281)
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Related: #2158832
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---
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 units/systemd-pstore.service.in | 4 ++--
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 1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/units/systemd-pstore.service.in b/units/systemd-pstore.service.in
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index 1983a9738f..19ffa8d4e8 100644
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--- a/units/systemd-pstore.service.in
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+++ b/units/systemd-pstore.service.in
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@@ -16,8 +16,8 @@ DefaultDependencies=no
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 After=systemd-remount-fs.service
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 Conflicts=shutdown.target
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 Before=sysinit.target shutdown.target
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-After=modprobe@efi_pstore.service modprobe@mtdpstore.service modprobe@chromeos_pstore.service modprobe@ramoops.service modprobe@pstore_zone.service modprobe@pstore_blk.service
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-Wants=modprobe@efi_pstore.service modprobe@mtdpstore.service modprobe@chromeos_pstore.service modprobe@ramoops.service modprobe@pstore_zone.service modprobe@pstore_blk.service
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+After=modprobe@efi_pstore.service
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+Wants=modprobe@efi_pstore.service
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 [Service]
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 Type=oneshot