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Message-ID: <20071102160252.6660e482@the-village.bc.nu>
Date: Fri, 2 Nov 2007 16:02:52 +0000
From: Alan Cox <alan@...rguk.ukuu.org.uk>
To: davem@...emloft.net, linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] tty - fix tty network driver interactions with
TCGET/TCSET calls
We conciously make a change here - we permit mode and speed setting to be
done in things like SLIP mode. There isn't actually a technical reason to
disallow this. It's usually a silly thing to do but we can do it and
soemone might wish to do so.
Signed-off-by: Alan Cox <alan@...hat.com>
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc1/drivers/net/hamradio/6pack.c linux-2.6.24-rc1/drivers/net/hamradio/6pack.c
--- linux.vanilla-2.6.24-rc1/drivers/net/hamradio/6pack.c 2007-11-01 11:41:56.000000000 +0000
+++ linux-2.6.24-rc1/drivers/net/hamradio/6pack.c 2007-11-02 12:09:17.000000000 +0000
@@ -762,26 +762,20 @@
if (copy_from_user(&addr,
(void __user *) arg, AX25_ADDR_LEN)) {
- err = -EFAULT;
- break;
- }
+ err = -EFAULT;
+ break;
+ }
- netif_tx_lock_bh(dev);
- memcpy(dev->dev_addr, &addr, AX25_ADDR_LEN);
- netif_tx_unlock_bh(dev);
+ netif_tx_lock_bh(dev);
+ memcpy(dev->dev_addr, &addr, AX25_ADDR_LEN);
+ netif_tx_unlock_bh(dev);
- err = 0;
- break;
- }
-
- /* Allow stty to read, but not set, the serial port */
- case TCGETS:
- case TCGETA:
- err = n_tty_ioctl(tty, (struct file *) file, cmd, arg);
- break;
+ err = 0;
+ break;
+ }
default:
- err = -ENOIOCTLCMD;
+ err = tty_mode_ioctl(tty, file, cmd, arg);
}
sp_put(sp);
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc1/drivers/net/irda/irtty-sir.c linux-2.6.24-rc1/drivers/net/irda/irtty-sir.c
--- linux.vanilla-2.6.24-rc1/drivers/net/irda/irtty-sir.c 2007-11-01 11:41:56.000000000 +0000
+++ linux-2.6.24-rc1/drivers/net/irda/irtty-sir.c 2007-11-02 12:16:13.837586480 +0000
@@ -434,11 +434,6 @@
IRDA_ASSERT(dev != NULL, return -1;);
switch (cmd) {
- case TCGETS:
- case TCGETA:
- err = n_tty_ioctl(tty, file, cmd, arg);
- break;
-
case IRTTY_IOCTDONGLE:
/* this call blocks for completion */
err = sirdev_set_dongle(dev, (IRDA_DONGLE) arg);
@@ -454,7 +449,7 @@
err = -EFAULT;
break;
default:
- err = -ENOIOCTLCMD;
+ err = tty_mode_ioctl(tty, file, cmd, arg);
break;
}
return err;
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc1/drivers/net/ppp_async.c linux-2.6.24-rc1/drivers/net/ppp_async.c
--- linux.vanilla-2.6.24-rc1/drivers/net/ppp_async.c 2007-11-01 11:41:18.000000000 +0000
+++ linux-2.6.24-rc1/drivers/net/ppp_async.c 2007-11-01 22:29:06.574077296 +0000
@@ -309,16 +309,11 @@
err = 0;
break;
- case TCGETS:
- case TCGETA:
- err = n_tty_ioctl(tty, file, cmd, arg);
- break;
-
case TCFLSH:
/* flush our buffers and the serial port's buffer */
if (arg == TCIOFLUSH || arg == TCOFLUSH)
ppp_async_flush_output(ap);
- err = n_tty_ioctl(tty, file, cmd, arg);
+ err = tty_perform_flush(tty, arg);
break;
case FIONREAD:
@@ -329,7 +324,8 @@
break;
default:
- err = -ENOIOCTLCMD;
+ /* Try the various mode ioctls */
+ err = tty_mode_ioctl(tty, file, cmd, arg);
}
ap_put(ap);
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc1/drivers/net/ppp_synctty.c linux-2.6.24-rc1/drivers/net/ppp_synctty.c
--- linux.vanilla-2.6.24-rc1/drivers/net/ppp_synctty.c 2007-11-01 11:41:18.000000000 +0000
+++ linux-2.6.24-rc1/drivers/net/ppp_synctty.c 2007-11-02 12:07:18.873913320 +0000
@@ -349,16 +349,11 @@
err = 0;
break;
- case TCGETS:
- case TCGETA:
- err = n_tty_ioctl(tty, file, cmd, arg);
- break;
-
case TCFLSH:
/* flush our buffers and the serial port's buffer */
if (arg == TCIOFLUSH || arg == TCOFLUSH)
ppp_sync_flush_output(ap);
- err = n_tty_ioctl(tty, file, cmd, arg);
+ err = tty_perform_flush(tty, arg);
break;
case FIONREAD:
@@ -369,7 +364,8 @@
break;
default:
- err = -ENOIOCTLCMD;
+ err = tty_mode_ioctl(tty, file, cmd, arg);
+ break;
}
sp_put(ap);
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc1/drivers/net/slip.c linux-2.6.24-rc1/drivers/net/slip.c
--- linux.vanilla-2.6.24-rc1/drivers/net/slip.c 2007-11-01 11:41:56.000000000 +0000
+++ linux-2.6.24-rc1/drivers/net/slip.c 2007-11-02 12:08:18.000000000 +0000
@@ -1218,14 +1218,8 @@
return 0;
/* VSV changes end */
#endif
-
- /* Allow stty to read, but not set, the serial port */
- case TCGETS:
- case TCGETA:
- return n_tty_ioctl(tty, file, cmd, arg);
-
default:
- return -ENOIOCTLCMD;
+ return tty_mode_ioctl(tty, file, cmd, arg);
}
}
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc1/drivers/net/wan/x25_asy.c linux-2.6.24-rc1/drivers/net/wan/x25_asy.c
--- linux.vanilla-2.6.24-rc1/drivers/net/wan/x25_asy.c 2007-11-01 11:41:18.000000000 +0000
+++ linux-2.6.24-rc1/drivers/net/wan/x25_asy.c 2007-11-02 12:14:34.000000000 +0000
@@ -719,12 +719,8 @@
return 0;
case SIOCSIFHWADDR:
return -EINVAL;
- /* Allow stty to read, but not set, the serial port */
- case TCGETS:
- case TCGETA:
- return n_tty_ioctl(tty, file, cmd, arg);
default:
- return -ENOIOCTLCMD;
+ return tty_mode_ioctl(tty, file, cmd, arg);
}
}
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc1/drivers/net/wireless/strip.c linux-2.6.24-rc1/drivers/net/wireless/strip.c
--- linux.vanilla-2.6.24-rc1/drivers/net/wireless/strip.c 2007-11-01 11:41:56.000000000 +0000
+++ linux-2.6.24-rc1/drivers/net/wireless/strip.c 2007-11-02 12:14:08.434650624 +0000
@@ -2735,16 +2735,8 @@
return -EFAULT;
return set_mac_address(strip_info, &addr);
}
- /*
- * Allow stty to read, but not set, the serial port
- */
-
- case TCGETS:
- case TCGETA:
- return n_tty_ioctl(tty, file, cmd, arg);
- break;
default:
- return -ENOIOCTLCMD;
+ return tty_mode_ioctl(tty, file, cmd, arg);
break;
}
return 0;
-
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