From: Tilman Schmidt <tilman@imap.cc>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: torvalds@linux-foundation.org, linux-kernel@vger.kernel.org,
Hansjoerg Lipp <hjlipp@web.de>
Subject: Re: [PATCH 72/80] tty: fix up gigaset a bit
Date: Thu, 16 Oct 2008 17:50:34 +0200 [thread overview]
Message-ID: <48F762CA.4080608@imap.cc> (raw)
In-Reply-To: <20081013094438.21645.30934.stgit@localhost.localdomain>
[-- Attachment #1: Type: text/plain, Size: 1485 bytes --]
Am 13.10.2008 11:44 schrieb Alan Cox:
> From: Alan Cox <alan@redhat.com>
>
> Stephen's fixes reminded me that gigaset is still rather broken so fix it up
> a bit
>
> Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Tilman Schmidt <tilman@imap.cc>
Thanks, Alan, for these improvements.
I'm now looking into the FIXME comments you added.
> @@ -571,6 +571,7 @@ gigaset_tty_close(struct tty_struct *tty)
> }
>
> /* prevent other callers from entering ldisc methods */
> + /* FIXME: should use the tty state flags */
> tty->disc_data = NULL;
>
> if (!cs->hw.ser)
Do you know of an example line discipline that has got this right?
My model for this code was drivers/net/ppp_async.c but now it seems
that this was not as exemplary as I had hoped.
> @@ -680,6 +675,8 @@ gigaset_tty_ioctl(struct tty_struct *tty, struct file *file,
> /*
> * Poll on the tty.
> * Unused, always return zero.
> + *
> + * FIXME: should probably return an exception - especially on hangup
> */
> static unsigned int
> gigaset_tty_poll(struct tty_struct *tty, struct file *file, poll_table *wait)
Looking around, I see that many LDs don't even provide a poll method.
So I'm thinking of just dropping this one. Would that be ok?
Thanks,
Tilman
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next prev parent reply other threads:[~2008-10-16 15:51 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-13 9:31 [PATCH 00/80] TTY updates for 2.6.28 Alan Cox
2008-10-13 9:31 ` [PATCH 01/80] drivers/serial/crisv10.c: add missing put_tty_driver Alan Cox
2008-10-13 9:31 ` [PATCH 02/80] drivers/char/hvc_console.c: adjust call to put_tty_driver Alan Cox
2008-10-13 9:31 ` [PATCH 03/80] coldfire: scheduled SERIAL_COLDFIRE removal Alan Cox
2008-10-13 9:32 ` [PATCH 04/80] epca: call tty_port_init Alan Cox
2008-10-13 9:32 ` [PATCH 05/80] Blackfin Serial Driver: use __initdata for data, not __init Alan Cox
2008-10-13 9:32 ` [PATCH 06/80] Blackfin Serial Driver: Fix bug - should suspend/resume/remove all uart ports Alan Cox
2008-10-13 9:33 ` [PATCH 07/80] Blackfin Serial Driver: trim trailing whitespace -- no functional changes Alan Cox
2008-10-13 9:33 ` [PATCH 08/80] Blackfin Serial Driver: move common variables out of serial headers and into the serial driver Alan Cox
2008-10-13 9:33 ` [PATCH 09/80] Blackfin Serial Driver: Remove useless stop Alan Cox
2008-10-13 9:33 ` [PATCH 10/80] Blackfin Serial Driver: Fix bug - Don't call tx_stop in tx_transfer Alan Cox
2008-10-13 9:33 ` [PATCH 11/80] Blackfin Serial Driver: Fix bug - ircp fails on sir over Blackfin UART Alan Cox
2008-10-13 9:33 ` [PATCH 12/80] Blackfin Serial Driver: Fix bug - request UART2/3 peripheral mapped interrupts in PIO mode Alan Cox
2008-10-13 9:34 ` [PATCH 13/80] Fix oti6858 debug level Alan Cox
2008-10-13 9:34 ` [PATCH 14/80] Char: cyclades. remove bogus iomap Alan Cox
2008-10-13 9:34 ` [PATCH 15/80] Char: sx, fix io unmapping Alan Cox
2008-10-13 9:34 ` [PATCH 16/80] Char: merge ip2main and ip2base Alan Cox
2008-10-13 9:34 ` [PATCH 17/80] ip2, cleanup globals Alan Cox
2008-10-13 9:34 ` [PATCH 18/80] ip2, fix sparse warnings Alan Cox
2008-10-13 9:34 ` [PATCH 19/80] ip2, init/deinit cleanup Alan Cox
2008-10-13 9:35 ` [PATCH 20/80] ip2: avoid add_timer with pending timer Alan Cox
2008-10-13 9:35 ` [PATCH 21/80] audit: Handle embedded NUL in TTY input auditing Alan Cox
2008-10-13 9:35 ` [PATCH 22/80] serial: Make uart_port's ioport "unsigned long" Alan Cox
2008-10-13 9:35 ` [PATCH 23/80] nozomi: Fix close on error Alan Cox
2008-10-13 9:35 ` [PATCH 24/80] serial-make-uart_ports-ioport-unsigned-long-fix Alan Cox
2008-10-13 9:35 ` [PATCH 25/80] usb: fix pl2303 initialization Alan Cox
2008-10-13 9:36 ` [PATCH 26/80] ftdi: A few errors are err() that should be debug which causes much spewage Alan Cox
2008-10-13 9:36 ` [PATCH 27/80] serial_8250: pci_enable_device fail is not fully handled Alan Cox
2008-10-13 9:36 ` [PATCH 28/80] 8250: remove a few inlines of dubious value Alan Cox
2008-10-13 9:36 ` [PATCH 29/80] serial: allow 8250 to be used on sparc Alan Cox
2008-10-13 9:36 ` [PATCH 30/80] tty: move tioclinux from a special case Alan Cox
2008-10-13 9:36 ` [PATCH 31/80] uml: small cleanups and note bugs to be dealt with by uml authors Alan Cox
2008-10-13 9:36 ` [PATCH 32/80] tty: split the buffering from tty_io Alan Cox
2008-10-13 9:37 ` [PATCH 33/80] tty: Split tty_port into its own file Alan Cox
2008-10-13 9:37 ` [PATCH 34/80] pps: Reserve a line discipline number for PPS Alan Cox
2008-10-13 9:37 ` [PATCH 35/80] tty: Add a kref count Alan Cox
2008-10-13 9:37 ` [PATCH 36/80] tty: use krefs to protect driver module counts Alan Cox
2008-10-13 9:37 ` [PATCH 37/80] tty: Cris has a nice RS485 ioctl so we should steal it Alan Cox
2008-10-13 9:38 ` [PATCH 38/80] tty: ipw need reworking Alan Cox
2008-10-13 9:38 ` [PATCH 39/80] tty: Add termiox Alan Cox
2008-10-13 9:38 ` [PATCH 40/80] tty: Termios locking - sort out real_tty confusions and lock reads Alan Cox
2008-10-13 9:39 ` [PATCH 41/80] tty: compare the tty winsize Alan Cox
2008-10-13 9:39 ` [PATCH 42/80] tty: Make get_current_tty use a kref Alan Cox
2008-10-13 9:39 ` [PATCH 43/80] tty: Move tty_write_message out of kernel/printk Alan Cox
2008-10-13 9:39 ` [PATCH 44/80] tty: usb-serial krefs Alan Cox
2008-10-13 9:39 ` [PATCH 45/80] tty: kref usage for isicom and moxa Alan Cox
2008-10-13 9:40 ` [PATCH 46/80] stallion: Use krefs Alan Cox
2008-10-13 9:40 ` [PATCH 47/80] mxser: Switch to kref tty Alan Cox
2008-10-13 9:40 ` [PATCH 48/80] tty: the vhangup syscall is racy Alan Cox
2008-10-13 9:40 ` [PATCH 49/80] tty: Redo current tty locking Alan Cox
2008-10-13 9:40 ` [PATCH 50/80] tty: Fix abusers of current->sighand->tty Alan Cox
2008-10-13 9:41 ` [PATCH 51/80] pty: If the administrator creates a device for a ptmx slave we should not error Alan Cox
2008-10-13 9:41 ` [PATCH 52/80] vt: remove bogus lock dropping Alan Cox
2008-10-13 9:41 ` [PATCH 53/80] tty: shutdown method Alan Cox
2008-10-13 9:41 ` [PATCH 54/80] tty: Remove more special casing and out of place code Alan Cox
2008-10-13 9:41 ` [PATCH 55/80] tty: Move parts of tty_init_dev into new functions Alan Cox
2008-10-13 9:42 ` [PATCH 56/80] tty: Clean up the tty_init_dev changes further Alan Cox
2008-10-13 9:42 ` [PATCH 57/80] tty: kref the tty driver object Alan Cox
2008-10-13 9:42 ` [PATCH 58/80] tty: More driver operations Alan Cox
2008-10-13 9:42 ` [PATCH 59/80] tty: Finish fixing up the init_dev interface to use ERR_PTR Alan Cox
2008-10-13 9:42 ` [PATCH 60/80] tty: extract the pty init time special cases Alan Cox
2008-10-13 9:42 ` [PATCH 61/80] Move tty lookup/reopen to caller Alan Cox
2008-10-13 9:42 ` [PATCH 62/80] Add an instance parameter devpts interfaces Alan Cox
2008-10-13 9:43 ` [PATCH 63/80] Simplify devpts_get_tty() Alan Cox
2008-10-13 9:43 ` [PATCH 64/80] Simplify devpts_pty_new() Alan Cox
2008-10-13 9:43 ` [PATCH 65/80] Simplify devpts_pty_kill Alan Cox
2008-10-13 9:43 ` [PATCH 66/80] pty: Coding style and polish Alan Cox
2008-10-13 9:43 ` [PATCH 67/80] pty: Fix allocation failure double free Alan Cox
2008-10-13 9:43 ` [PATCH 68/80] pty: simplify unix98 allocation Alan Cox
2008-10-13 9:44 ` [PATCH 69/80] tty: simplify ktermios allocation Alan Cox
2008-10-13 9:44 ` [PATCH 70/80] tty: some ICANON magic is in the wrong places Alan Cox
2008-10-13 9:44 ` [PATCH 71/80] tty: Fallout from tty-move-canon-specials Alan Cox
2008-10-13 9:44 ` [PATCH 72/80] tty: fix up gigaset a bit Alan Cox
2008-10-16 15:50 ` Tilman Schmidt [this message]
2008-10-17 11:40 ` Alan Cox
2008-10-19 12:28 ` Tilman Schmidt
2008-10-22 9:00 ` Alan Cox
2008-10-24 11:21 ` Tilman Schmidt
2008-10-13 9:44 ` [PATCH 73/80] tty: Remove lots of NULL checks Alan Cox
2008-10-13 9:45 ` [PATCH 74/80] tty: Minor tidyups and document fixes for n_tty Alan Cox
2008-10-13 9:45 ` [PATCH 75/80] applicom: Fix an unchecked user ioctl range and an error return Alan Cox
2008-10-13 9:45 ` [PATCH 76/80] serial: fix device name reporting when minor space is shared between drivers Alan Cox
2008-10-13 9:45 ` [PATCH 77/80] tty: tty_io.c shadows sparse fix Alan Cox
2008-10-13 9:45 ` [PATCH 78/80] fs3270: remove extra locks Alan Cox
2008-10-13 9:46 ` [PATCH 79/80] fs3270: Correct error returns Alan Cox
2008-10-13 9:46 ` [PATCH 80/80] tty: rename the remaining oddly named n_tty functions Alan Cox
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