kernel-source from devel:ARM:15.2:Contrib:N1SDP project
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Add repository and install manually
For openSUSE Leap 15.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:ARM:15.2:Contrib:N1SDP/openSUSE_Leap_15.2/devel:ARM:15.2:Contrib:N1SDP.repo zypper refresh zypper install kernel-source