53 lines
2.0 KiB
Diff
53 lines
2.0 KiB
Diff
From f4cda60fd9725d5aa6dd25ee67909339d6400af8 Mon Sep 17 00:00:00 2001
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From: Adrien Thierry <athierry@redhat.com>
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Date: Mon, 13 Feb 2023 10:43:32 -0500
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Subject: [PATCH] fix(kernel-modules): use modalias info in get_dev_module()
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When calling dracut with '--hostonly-mode=strict', get_dev_module() gets
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called on the system's block devices to find the required drivers. The
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driver name is retrieved using udevadm. However, the driver name
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returned by udevadm is not necessarily the same as the module name.
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This is the case for the Qualcomm UFS driver: udevadm returns
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'ufshcd-qcom' while the module name is 'ufs-qcom', so dracut-install is
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not able to find the module afterwards.
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To solve this, make get_dev_module() also return the module alias info
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from the modalias files contained in the sysfs directories parsed by
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udevadm.
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Signed-off-by: Adrien Thierry <athierry@redhat.com>
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(cherry picked from commit 87a76dbb578aff473e690857d1b714eacd92b9ec)
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Resolves: RHEL-55708
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---
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dracut-functions.sh | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/dracut-functions.sh b/dracut-functions.sh
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index 3c475ca7..f2614308 100755
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--- a/dracut-functions.sh
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+++ b/dracut-functions.sh
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@@ -971,8 +971,20 @@ block_is_netdevice() {
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get_dev_module() {
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local dev_attr_walk
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local dev_drivers
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+ local dev_paths
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dev_attr_walk=$(udevadm info -a "$1")
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dev_drivers=$(echo "$dev_attr_walk" | sed -n 's/\s*DRIVERS=="\(\S\+\)"/\1/p')
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+
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+ # also return modalias info from sysfs paths parsed by udevadm
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+ dev_paths=$(echo "$dev_attr_walk" | sed -n 's/.*\(\/devices\/.*\)'\'':/\1/p')
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+ local dev_path
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+ for dev_path in $dev_paths; do
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+ local modalias_file="/sys$dev_path/modalias"
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+ if [ -e "$modalias_file" ]; then
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+ dev_drivers="$(printf "%s\n%s" "$dev_drivers" "$(cat "$modalias_file")")"
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+ fi
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+ done
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+
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# if no kernel modules found and device is in a virtual subsystem, follow symlinks
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if [[ -z $dev_drivers && $(udevadm info -q path "$1") == "/devices/virtual"* ]]; then
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local dev_vkernel
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