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SubjectRe: [PATCH 10/13] tty: untangle locking of wait_until_sent
> Some wait_until_sent versions require the big
> tty mutex, others don't and some callers of
> wait_until_sent already hold it while other don't.
> That leads to recursive use of the BTM in these
> functions, which we're trying to get rid of.

I don't believe any of the currently live ones do.

> drivers/char/amiserial.c | 6 +++---
> drivers/char/generic_serial.c | 2 +-

Both ex drivers

> drivers/char/hvc_console.c | 2 +-
> drivers/char/hvcs.c | 2 +-

Doesn't seemn to need it

> drivers/char/ip2/ip2main.c | 20 +++++++++++++++++---

I don't think we care - the driver is a mess, its probably not been used
in years

> drivers/char/serial167.c | 6 +++---

Historical value only and broken

> drivers/char/specialix.c | 2 +-

Broken

> drivers/serial/68328serial.c | 2 +-
> drivers/serial/68360serial.c | 5 ++---

Both defunct

> drivers/serial/crisv10.c | 12 +++++++-----

Defunct

> net/irda/ircomm/ircomm_tty.c | 2 +-

Semi-defunct at best

This makes me think that now might be a good time to consign the broken
crap to the bitbucket unless someone stands up with hardware and who
wants to maintain it.




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