Bug 463637

SUMMARY

If the option "Smb4KMountSettings::noLocking" in the settings menu of smb4K was enabled, mounting will not work in Ubuntu.
Cifs will abort with error: "cifs: Unknown parameter 'nolock'"
Smb4k will set the 'nolock' mount option which is an alias of 'nobrl' and has probably been removed (see comment 4 in https://bugzilla.redhat.com/show_bug.cgi?id=1944015)

STEPS TO REPRODUCE
1. Open smb4k
2. open settings > Mounting (left side) [Einhängen] > Select 3rd Tab "additional settings..." (on top) ["Erweiterte Einstellungen zum Einhängen"] 
3. enable option "Use no locking"
4. try to mount some smb network storage

OBSERVED RESULT

- directory will not be mounted
- dmesg will show "cifs: Unknown parameter 'nolock'"

EXPECTED RESULT

- mounted directory with disabled Byte-Range Lock

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Ubuntu 22.10
KDE Plasma Version: 5.26.4
KDE Frameworks Version: 5.100.0
Qt Version: 5.15.6

Kernel: 5.19.0-26-generic
Cifs version: cifs-utils 2:6.14-1.1

ADDITIONAL INFORMATION

The solution will likely be to change the following:

file: core/smb4kmounter.cpp
line: 1222
change: argumentsList << QStringLiteral("nolock");
to: argumentsList << QStringLiteral("nobrl");