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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2017-10-01 20:13:08 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-01-24 19:13:45 -0500 |
| commit | b1b0c245067268043e0e832432f3d537a5cae33b (patch) | |
| tree | 7ded461ec00dc15af031544a1c5e8bbb3586902d /net/core/dev_ioctl.c | |
| parent | kill dev_ifname32() (diff) | |
| download | linux-dev-b1b0c245067268043e0e832432f3d537a5cae33b.tar.xz linux-dev-b1b0c245067268043e0e832432f3d537a5cae33b.zip | |
lift handling of SIOCIW... out of dev_ioctl()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/core/dev_ioctl.c')
| -rw-r--r-- | net/core/dev_ioctl.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c index 5cdec23dd28e..d262f159f9fd 100644 --- a/net/core/dev_ioctl.c +++ b/net/core/dev_ioctl.c @@ -411,24 +411,6 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg) if (cmd == SIOCGIFNAME) return dev_ifname(net, (struct ifreq __user *)arg); - /* - * Take care of Wireless Extensions. Unfortunately struct iwreq - * isn't a proper subset of struct ifreq (it's 8 byte shorter) - * so we need to treat it specially, otherwise applications may - * fault if the struct they're passing happens to land at the - * end of a mapped page. - */ - if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) { - struct iwreq iwr; - - if (copy_from_user(&iwr, arg, sizeof(iwr))) - return -EFAULT; - - iwr.ifr_name[sizeof(iwr.ifr_name) - 1] = 0; - - return wext_handle_ioctl(net, &iwr, cmd, arg); - } - if (copy_from_user(&ifr, arg, sizeof(struct ifreq))) return -EFAULT; |