What is the method of defining the Function Prototype

[prem_annam]

Can you provide a code snippet demonstrating the problem?
Also, which rule is reported as being violated (i assume MISRA.VAR.HIDDEN is some kind of incomplete static analyis tool output)?

Hi,
This is thefunction prototype : int wc_ed25519_init(ed25519_key* key);
and the function call is ret = wc_ed25519_init(keyPair);

ERROR:Identifier 'key' hides identifier in an outer scope which is reported from KlocWork tool analysis.