[FS#3662] Parameters aren't passed to kernel modules at boot

[OpenWrt Bugs]

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A new Flyspray task has been opened.  Details are below. 

User who did this - Mateus B. Cassiano (mbc07) 

Attached to Project - OpenWrt/LEDE Project
Summary - Parameters aren't passed to kernel modules at boot
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - High
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - I have a D-Link DIR-882 A1 router (MT7621 + 2x MT7615N, 128 MB of RAM, 16 MB of NOR flash) running OpenWrt SNAPSHOT r16087-1d412235a5 (built on March 4, 2021) and I need to pass **quirks=0bc2:231a:u** parameter to the usb-storage module at boot in order to skip loading of the UAS driver, which is currently broken on the xhci-mtk driver this router uses (as reported [[https://bugs.openwrt.org/index.php?do=details&task_id=1862|here]], [[https://bugs.openwrt.org/index.php?do=details&task_id=1305|here]], [[https://github.com/gnubee-git/GnuBee_Docs/issues/98|here]] and on various topics on the OpenWrt Forums), and prevents an external USB 3.0 HDD I have to work with it.

Accordingly to several sources, this should be easily accomplished by writing **usb-storage quirks=::u** on a single line into **/etc/modules.d/usb-storage**, however, the specified parameter is ignored and never reaches the kernel module, as running **cat /sys/module/usb_storage/parameters/quirks** after boot is complete returns empty. I also found [[https://forum.openwrt.org/t/is-there-any-way-to-pass-parameters-to-the-kernel-module-when-openwrt-starts/27907|this thread]], dating back to 2018, with other users having the same issue, and which also seems to confirm that adding the kernel module parameters to the corresponding file under **/etc/modules.d** is how it's supposed to work, but it simply doesn't.

The only workaround I found so far is running **echo "0bc2:231a:u" > /sys/module/usb_storage/parameters/quirks** after booting, but then I need to physically unplug and re-plug the HDD for the changes to take effect, this also needs to be done every time the router powers on, which is very annoying. Other things I tried includes creating **/etc/modprobe.d/usb-storage.conf** with **options usb-storage quirks=::u** and also unloading (and ever completely removing) kmod-usb-storage-uas from the device, but none of that worked.

So, is there any other mechanism for passing parameters to kernel modules at boot time? As far as I searched, **/etc/modules.d** seems to be the only one, but it's broken...


More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3662

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