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udev: Use current tags when looking for preferred primary devices

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In some use cases there is a need to dynamically change the preferred
primary GPU, or get rid of the preference altogether. This is currently
not possible due to a change in udev introduced by systemd v247. This
version made the tags "sticky", meaning there is no way to remove them
once attached. When a tag gets removed, only the CURRENT_TAGS property
reflects that change, the removed tag will remain in the TAGS property.

This also bumps libgudev version to 238, since that version introduces
a function, which we need to get the current tags.

Related: https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1562
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4055>
This commit is contained in:
Kamil Szczęk 2024-09-30 11:24:32 +02:00 committed by Marge Bot
parent 36f1a38c3b
commit 57812546b9
2 changed files with 3 additions and 3 deletions
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2
meson.build
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@ -42,7 +42,7 @@ libei_req = '>= 1.0.901'
# optional version requirements
udev_req = '>= 228'
gudev_req = '>= 232'
gudev_req = '>= 238'
# wayland version requirements
wayland_server_req = '>= 1.23'

4
src/backends/native/meta-udev.c
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@ -124,9 +124,9 @@ meta_is_udev_test_device (GUdevDevice *device)
gboolean
meta_is_udev_device_preferred_primary (GUdevDevice *device)
{
const char * const * tags;
const char * const *tags;
tags = g_udev_device_get_tags (device);
tags = g_udev_device_get_current_tags (device);
if (!tags)
return FALSE;