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Downgrade tty_intr_event from a global

Description

Downgrade tty_intr_event from a global

It can be static within uart_tty.c. It is an open question whether there
remains any real benefit to having uart instances share a swi thread.

Reviewed by: imp, markj, jhb
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D36938

(cherry picked from commit 05b727fee550598bfae5754783f9decfdeeb3c3d)

Details

Provenance
mhorneAuthored on Oct 12 2022, 4:36 PM
Reviewer
imp
Differential Revision
D36938: Downgrade tty_intr_event from a global
Parents
rG76366ad0257a: swi(9): clean up description of clk_intr_event
Branches
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