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The kernel.org bugzilla uses a mechanism that allows anyone to subscribe/unsubscribe from bug reports for specific components. This is done using virtual default assignees and "watched user" functionality of bugzilla.
People maintaining various kernel modules change routinely and in order to make it easier for people to start/stop receiving bugzilla notices for various components, bugzilla.kernel.org often uses "virtual default assignees" like "drivers_foo@kernel-bugs.osdl.org" or "drivers_bar@kernel-bugs.kernel.org", which are not real deliverable addresses (on purpose). Maintainers then subscribe to bug reports that are assigned to these virtual addresses and are thus able to receive the bug reports without involving bugzilla administrators.
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" in the top barPreferences
" in the top barEmail Preferences
" tabUser Watching
" sectionPreferences
" in the top barEmail Preferences
" tabUser Watching
" sectionSend a request to support with the address of the list and the name of the bugzilla component for which it should receive bugmail.
You need to be added to the special "editbugs" group. Just send a request to support and you will be added to the group, allowing you to edit any aspect of a bug.