linux-toradex.git/include/net/caif, branch v4.16-rc4

caif: reduce stack size with KASAN

2018-01-19T19:02:12+00:00

When CONFIG_KASAN is set, we can use relatively large amounts of kernel
stack space:

net/caif/cfctrl.c:555:1: warning: the frame size of 1600 bytes is larger than 1280 bytes [-Wframe-larger-than=]

This adds convenience wrappers around cfpkt_extr_head(), which is responsible
for most of the stack growth. With those wrapper functions, gcc apparently
starts reusing the stack slots for each instance, thus avoiding the
problem.

Signed-off-by: Arnd Bergmann 
Signed-off-by: David S. Miller

caif: fix a signedness bug in cfpkt_iterate()

2015-02-20T22:35:14+00:00

The cfpkt_iterate() function can return -EPROTO on error, but the
function is a u16 so the negative value gets truncated to a positive
unsigned short.  This causes a static checker warning.

The only caller which might care is cffrml_receive(), when it's checking
the frame checksum.  I modified cffrml_receive() so that it never says
-EPROTO is a valid checksum.

Also this isn't ever going to be inlined so I removed the "inline".

Signed-off-by: Dan Carpenter 
Signed-off-by: David S. Miller

caif_hsi.h: Remove extern from function prototypes

2013-09-23T20:29:41+00:00

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

caif: Remove my bouncing email address.

2013-04-23T17:25:51+00:00

Remove my soon bouncing email address.
Also remove the "Contact:" line in file header.
The MAINTAINERS file is a better place to find the
contact person anyway.

Signed-off-by: Sjur Brændeland 
Signed-off-by: David S. Miller

caif: remove caif_shm

2013-03-17T16:16:38+00:00

caif_shm is an old implementation
caif_shm will be replaced by caif_virtio

[ As explained by Linus Walleij: "U5500 used this, but was cancelled
  and the silicon did not reach anyone outside ST-Ericsson.  Then for
  the next platforms, we have gone for the leaner & cleaner approach
  of using virtio, rpmesg and rproc." ]

Signed-off-by: Erwan Yvin 
Acked-by: Linus Walleij 
Acked-by: Sjur Brendeland 
Signed-off-by: David S. Miller

caif-hsi: Remove use of module parameters

2012-06-25T23:44:12+00:00

Remove use of module parameters on caif hsi device, as
rtnl configuration parameters are already supported.

All caif hsi configuration data is put in cfhsi_config,
and default values in hsi_default_config.

Signed-off-by: Sjur Brændeland 
Signed-off-by: David S. Miller

caif-hsi: Replace platform device with ops structure.

2012-06-25T23:44:12+00:00

Remove use of struct platform_device, and replace it with
struct cfhsi_ops. Updated variable names in the same
spirit:
cfhsi_get_dev to cfhsi_get_ops,
cfhsi->dev to cfhsi->ops and,
cfhsi->dev.drv to cfhsi->ops->cb_ops.

Signed-off-by: Sjur Brændeland 
Signed-off-by: David S. Miller

caif-hsi: Add rtnl support

2012-06-25T23:44:12+00:00

Add RTNL support for managing the caif hsi interface.
The HSI HW interface is no longer registering as a device,
instead we use symbol_get to get hold of the HSI API.

Signed-off-by: Sjur Brændeland 
Signed-off-by: David S. Miller

caif-hsi: robust frame aggregation for HSI

2012-04-13T15:37:36+00:00

Implement aggregation algorithm, combining more data into a single
HSI transfer. 4 different traffic categories are supported:
 1. TC_PRIO_CONTROL .. TC_PRIO_MAX (CTL)
 2. TC_PRIO_INTERACTIVE            (VO)
 3. TC_PRIO_INTERACTIVE_BULK       (VI)
 4. TC_PRIO_BESTEFFORT, TC_PRIO_BULK, TC_PRIO_FILLER (BEBK)

Signed-off-by: Dmitry Tarnyagin 
Signed-off-by: David S. Miller

caif: set traffic class for caif packets

2012-04-13T15:37:36+00:00

Set traffic class for CAIF packets, based on socket
priority, CAIF protocol type, or type of message.

Traffic class mapping for different packet types:
 - control:       TC_PRIO_CONTROL;
 - flow control:  TC_PRIO_CONTROL;
 - at:            TC_PRIO_CONTROL;
 - rfm:           TC_PRIO_INTERACTIVE_BULK;
 - other sockets: equals to socket's TC;
 - network data:  no change.

Signed-off-by: Dmitry Tarnyagin 
Signed-off-by: David S. Miller