Re: [PATCH 30/31] CAPI: Remove experimental tag from middlewarefeature

From: Alan Cox
Date: Sat Jan 23 2010 - 08:54:42 EST

On Sat, 23 Jan 2010 14:13:47 +0100
Jan Kiszka <jan.kiszka@xxxxxx> wrote:

> Alan Cox wrote:
> > On Sun, 10 Jan 2010 14:12:41 +0100
> > Jan Kiszka <jan.kiszka@xxxxxx> wrote:
> >
> >> Despite all its bugs, the middleware support of our CAPI stack was
> >> already in use for many, many moons. And after going through its code,
> >> fixing all issues I found, I feel it deserves to officially become a
> >> non-experimental feature.
> >
> > Slightly NAK this - I'm really glad to see the work getting done, but
> > until it uses krefs properly for the tty references I'd say it is
> > experimental still.
> >
> > I'd like to help you sort out the tty krefs stuff, using tty_port and so
> > on and get that wart fixed too.
> Will look into to this. Some good starting point or reference driver for me?

Most of the drivers at least use tty_port and the tty_port ref counting
helpers. The most full use of the new interfaces is probably the latest
USB serial code and the drivers/mmc/card/sdio_uart.c code, which uses all
the new facilities to the full to kick all the nasty open/close/hangup
locking and logic out of the low level drivers.

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