Oliver Hartkopp 24bf50bc89 can: fix handling of unmodifiable configuration options ... commit bb208f144cf3f59d8f89a09a80efd04389718907 upstream. As described in 'can: m_can: tag current CAN FD controllers as non-ISO' (6cfda7fbeb) it is possible to define fixed configuration options by setting the according bit in 'ctrlmode' and clear it in 'ctrlmode_supported'. This leads to the incovenience that the fixed configuration bits can not be passed by netlink even when they have the correct values (e.g. non-ISO, FD). This patch fixes that issue and not only allows fixed set bit values to be set again but now requires(!) to provide these fixed values at configuration time. A valid CAN FD configuration consists of a nominal/arbitration bittiming, a data bittiming and a control mode with CAN_CTRLMODE_FD set - which is now enforced by a new can_validate() function. This fix additionally removed the inconsistency that was prohibiting the support of 'CANFD-only' controller drivers, like the RCar CAN FD. For this reason a new helper can_set_static_ctrlmode() has been introduced to provide a proper interface to handle static enabled CAN controller options. Reported-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Reviewed-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-06-01 12:15:50 -07:00
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acpi
asm-generic	asm-generic/futex: Re-enable preemption in futex_atomic_cmpxchg_inatomic()	2016-05-04 14:48:43 -07:00
clocksource
crypto	crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path	2016-02-17 12:31:03 -08:00
drm	drm: Loongson-3 doesn't fully support wc memory	2016-05-04 14:48:46 -07:00
dt-bindings
keys
kvm	KVM: arm/arm64: arch_timer: Preserve physical dist. active state on LR.active	2015-11-24 18:07:40 +01:00
linux	can: fix handling of unmodifiable configuration options	2016-06-01 12:15:50 -07:00
math-emu
media	videobuf2-core: Check user space planes array in dqbuf	2016-05-04 14:48:50 -07:00
memory
misc
net	net_sched: update hierarchical backlog too	2016-05-18 17:06:39 -07:00
pcmcia
ras
rdma	IB/security: Restrict use of the write() interface	2016-05-04 14:48:48 -07:00
rxrpc
scsi	Merge branch 'mkp-fixes' into fixes	2015-12-03 09:32:33 -08:00
soc
sound	ALSA: rawmidi: Make snd_rawmidi_transmit() race-free	2016-02-17 12:30:58 -08:00
target	target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors	2016-03-09 15:34:51 -08:00
trace	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2015-11-11 09:03:01 -08:00
uapi	uapi glibc compat: fix compile errors when glibc net/if.h included before linux/if.h MIME-Version: 1.0	2016-05-18 17:06:43 -07:00
video	gpu: ipu-v3: drop unused dmfc field from client platform data	2015-11-24 11:30:15 +01:00
xen	xen: Fix page <-> pfn conversion on 32 bit systems	2016-05-11 11:21:14 +02:00
Kbuild