This is a standard ioctl supported by file descriptors, sockets (as
SIOCINQ), and ttys (as TIOCOUTQ) to get the size of the available
read buffer. It provides userspace with a feedback mechanism to
avoid overflow of the kernel ringbuffer, and is used by e.g.
libevent.
Signed-off-by: Dominic Chen
Since the default behavior in vfs_llseek() is now no_llseek(), and
filp->f_pos / ppos are not actually used anywhere in dvb, drop the
inconsistent llseek() stubs.
Signed-off-by: Dominic Chen
---
drivers/media/dvb-core/dmxdev.c | 2 --
drivers/media/dvb-core/dvb_ca_en50221.c
