LinkedIn will be alerted, and your account may be suspended.
When you report a profile, the person is unaware of who reported them or why. LinkedIn may restrict or warn this profile depending on the severity of the incident.
You can report a profile if you believe it contains the following information:
The person has broken the terms of service; their profile does not represent a genuine person; they are attempting to impersonate someone; or their profile contains an objectionable image
You will not be alerted who reported another member's content if you report their content. Additionally, the information or conversation that you reported should no longer appear in your feed or messaging inbox