firewire: clean up XXX comments
Remove stale and misleading XXX comments throughout firewire.c.
Most were from the original 2002 codebase and either described
correct behavior or noted aspirational improvements that never
happended.
Two actionable items retained as TODO: config ROM CRC validation
and pending xfer cleanup on detach.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D57466
[VPlan] Prevent dangling references to trip count after expansion. (#201924)
Set trip count to Poison after expanding SCEVs to VPInstructions. getTripCount should not be used after that other than printing; setting to poison avoids accessing dangling references.
fix(fwe): add missing net epoch around ether_input
Wrap the if_input() call in fwe_as_input() with NET_EPOCH_ENTER/EXIT.
The network stack requires epoch protection when delivering packets
via if_input, and fwe was missing it.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D57459
procctl(): do not allow the process to exit inside kern_procctl_single()
Requested and reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D57491
[lldb] Remove unused DenseMapInfo::getEmptyKey (#201990)
After #201281 DenseMapInfo<T>::getEmptyKey() is no longer used by
DenseMap. Remove the unused getEmptyKey definitions and dead sentinel
uses.
