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| author | Arnd Bergmann <arnd@arndb.de> | 2009-11-06 08:09:06 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-06 23:01:14 -0800 |
| commit | 206602217747382488fcae68351673cc9103debc (patch) | |
| tree | 1cdf6ce1e7fe4f41e75997b88dedb8883563b8bc | |
| parent | 7a229387d317df525ebd19e146493db7f2694b8b (diff) | |
| download | linux-3.10-206602217747382488fcae68351673cc9103debc.tar.gz linux-3.10-206602217747382488fcae68351673cc9103debc.tar.bz2 linux-3.10-206602217747382488fcae68351673cc9103debc.zip | |
appletalk: handle SIOCATALKDIFADDR compat ioctl
We must not have a compat ioctl handler for SIOCATALKDIFADDR
in common code, because the same number is used in other protocols
with different data structures.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | fs/compat_ioctl.c | 1 | ||||
| -rw-r--r-- | net/appletalk/ddp.c | 12 |
2 files changed, 7 insertions, 6 deletions
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index f4a5a01fc66..50d2a5fdc94 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -2536,7 +2536,6 @@ HANDLE_IOCTL(SIOCSIFHWBROADCAST, dev_ifsioc) HANDLE_IOCTL(SIOCSHWTSTAMP, dev_ifsioc) /* ioctls used by appletalk ddp.c */ -HANDLE_IOCTL(SIOCATALKDIFADDR, dev_ifsioc) HANDLE_IOCTL(SIOCDIFADDR, dev_ifsioc) HANDLE_IOCTL(SIOCSARP, dev_ifsioc) HANDLE_IOCTL(SIOCDARP, dev_ifsioc) diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 4b0ce2e2b46..7cd08b45c52 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1811,12 +1811,14 @@ static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) static int atalk_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) { /* - * All Appletalk ioctls except SIOCATALKDIFADDR are standard. And - * SIOCATALKDIFADDR is handled by upper layer as well, so there is - * nothing to do. Eventually SIOCATALKDIFADDR should be moved - * here so there is no generic SIOCPROTOPRIVATE translation in the - * system. + * SIOCATALKDIFADDR is a SIOCPROTOPRIVATE ioctl number, so we + * cannot handle it in common code. The data we access if ifreq + * here is compatible, so we can simply call the native + * handler. */ + if (cmd == SIOCATALKDIFADDR) + return atalk_ioctl(sock, cmd, (unsigned long)compat_ptr(arg)); + return -ENOIOCTLCMD; } #endif |