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MFC r303347, r303350, r303351, r303353:

Description

MFC r303347, r303350, r303351, r303353:

Translate modem status reg bits from ns16550 to SER_* values used by the
tty layer.

Annotate the usb-serial drivers which always return 0 for line status,
so that it'll be easier to find and fix them in the future.

Also annotate a switch case fall-through per style(9).

Details

Provenance
ianAuthored on
Parents
rS314500: MFC r303346:
Branches
Unknown
Tags
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