diff options
| author | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2020-06-14 18:34:27 +0200 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2020-06-18 18:25:15 +0200 |
| commit | 876c75fe870846b09b54423a6b719d80bc879b27 (patch) | |
| tree | 5e8719f4f1cfac65498c72a9ec807a9422063ca2 /rules.d/60-serial.rules | |
| parent | hwdb: generate a hwdb file instead of rules for autosuspend (diff) | |
| download | systemd-876c75fe870846b09b54423a6b719d80bc879b27.tar.xz systemd-876c75fe870846b09b54423a6b719d80bc879b27.zip | |
udev: do not execute hwdb builtin import twice or thrice
Running the import more than once shouldn't matter, but it's a bit confusing
and causes a slowdown too. This patch reworks the rules to avoid duplicted runs,
but tries to keep the same imports. (E.g. import for pci devices without MODALIAS
is only done for tty devices.)
Note that this is only about hwdb import with argument, which uses MODALIAS as
the lookup key. There are other imports done with different lookup keys.
Diffstat (limited to '')
| -rw-r--r-- | rules.d/60-serial.rules | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/rules.d/60-serial.rules b/rules.d/60-serial.rules index f303e27fd5..b1626650b7 100644 --- a/rules.d/60-serial.rules +++ b/rules.d/60-serial.rules @@ -4,8 +4,9 @@ ACTION=="remove", GOTO="serial_end" SUBSYSTEM!="tty", GOTO="serial_end" SUBSYSTEMS=="pci", ENV{ID_BUS}="pci", ENV{ID_VENDOR_ID}="$attr{vendor}", ENV{ID_MODEL_ID}="$attr{device}" -SUBSYSTEMS=="pci", IMPORT{builtin}="hwdb --subsystem=pci" -SUBSYSTEMS=="usb", IMPORT{builtin}="usb_id", IMPORT{builtin}="hwdb --subsystem=usb" +# We already ran the hwdb builtin for devices with MODALIAS in 50-default.rules. +# Let's cover the remaining case here, where we walk up the tree to find a node with $MODALIAS. +ENV{MODALIAS}=="", SUBSYSTEMS=="pci", IMPORT{builtin}="hwdb --subsystem=pci" # /dev/serial/by-path/, /dev/serial/by-id/ for USB devices KERNEL!="ttyUSB[0-9]*|ttyACM[0-9]*", GOTO="serial_end" |