tree 8d5934353d83b0caae1faecf120c8091cfbaff63
parent 3e9e5a5921f4b7dc098a01d01e5972bebb36491e
author Oliver Hartkopp <socketcan@hartkopp.net> 1281568355 -0700
committer David S. Miller <davem@davemloft.net> 1281568355 -0700

can: add limit for nframes and clean up signed/unsigned variables

This patch adds a limit for nframes as the number of frames in TX_SETUP and
RX_SETUP are derived from a single byte multiplex value by default.
Use-cases that would require to send/filter more than 256 CAN frames should
be implemented in userspace for complexity reasons anyway.

Additionally the assignments of unsigned values from userspace to signed
values in kernelspace and vice versa are fixed by using unsigned values in
kernelspace consistently.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Reported-by: Ben Hawkes <hawkes@google.com>
Acked-by: Urs Thuermann <urs.thuermann@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>