bonding: quit messing with IOCTL

The only remaining users are issuing SIOCGMIIPHY and SIOCGMIIREG,
neither of which deals with userland pointers.  Simply calling
->ndo_do_ioctl() is fine; no messing with set_fs() is needed.
It used to mess with SIOCETHTOOL, which would've needed set_fs(),
but that has been killed in "[NET] ethtool ops are the only way"
9 years ago...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

include/net/bonding.h

@@ -37,18 +37,6 @@
 #ifndef __long_aligned
 #define __long_aligned __attribute__((aligned((sizeof(long)))))
 #endif
-/*
- * Less bad way to call ioctl from within the kernel; this needs to be
- * done some other way to get the call out of interrupt context.
- * Needs "ioctl" variable to be supplied by calling context.
- */
-#define IOCTL(dev, arg, cmd) ({		\
-	int res = 0;			\
-	mm_segment_t fs = get_fs();	\
-	set_fs(get_ds());		\
-	res = ioctl(dev, arg, cmd);	\
-	set_fs(fs);			\
-	res; })
 
 #define BOND_MODE(bond) ((bond)->params.mode)