In particular remove some extra-parentheses around single code tokens,
and replace few "DPRINT1 + while (TRUE);" by UNIMPLEMENTED_DBGBREAK.
+ Improve some comments.
Whenever a security request is invoked into a key object, such as when requesting
information from its security descriptor, the Object Manager will execute
the CmpSecurityMethod method to do the job.
The problem is that CmpSecurityMethod is not aware if the key control block
of the key body already has a lock acquired which means the function will attempt
to acquire a lock again, leading to a deadlock. This happens if the same
calling thread locks the KCB but it also wants to acquire security information
with ObCheckObjectAccess in CmpDoOpen.
Windows has a hack in CmpSecurityMethod where the passed KCB pointer is ORed
with a bitfield mask to avoid locking in all cases. This is ugly because it negates
every thread to acquire a lock if at least one has it.
- Sync some INIT_FUNCTION with how they are used and what is already
specified in the headers.
Addendum to commit 85e5b5be (r49445).
- KdbpGetCommandLineSettings(): Remove INIT_FUNCTION.
Fix MSVC 2015 x86 custom build:
"...\ntoskrnl\kdbg\kdb.c(1699): error C2983: 'KdbpGetCommandLineSettings': all declarations must have an identical __declspec(code_seg(...))"
And may also fix obscure bugs when entering into the KDBG debugger.
