kernel/git/stable/linux.git/drivers/net/can, branch linux-2.6.31.y

can: fix NOHZ local_softirq_pending 08 warning

2009-10-05T16:32:13+00:00

commit 481a8199142c050b72bff8a1956a49fd0a75bbe0 upstream. When using nanosleep() in an userspace application we get a ratelimit warning NOHZ: local_softirq_pending 08 for 10 times. The echo of CAN frames is done from process context and softirq context only. Therefore the usage of netif_rx() was wrong (for years). This patch replaces netif_rx() with netif_rx_ni() which has to be used from process/softirq context. It also adds a missing comment that can_send() must no be used from hardirq context. Signed-off-by: Oliver Hartkopp Signed-off-by: Urs Thuermann Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

can: fix oops caused by wrong rtnl newlink usage

2009-08-13T23:33:01+00:00

For 'real' hardware CAN devices the netlink interface is used to set CAN specific communication parameters. Real CAN hardware can not be created with the ip tool ... The invocation of 'ip link add type can' lead to an oops as the standard rtnl newlink function was called: http://bugzilla.kernel.org/show_bug.cgi?id=13954 This patch adds a private newlink function for the CAN device driver interface that unconditionally returns -EOPNOTSUPP. Signed-off-by: Oliver Hartkopp Reported-by: Dmitry Eremin-Solenikov CC: Patrick McHardy CC: Wolfgang Grandegger Signed-off-by: David S. Miller

can: switch carrier on if device was stopped while in bus-off state

2009-07-20T19:28:30+00:00

This patch fixes a problem when a device is stopped while in the bus-off state. Then the carrier remains off forever. Signed-off-by: Kurt Van Dijck Signed-off-by: Wolfgang Grandegger Signed-off-by: David S. Miller

can: restart device even if dev_alloc_skb() fails

2009-07-20T19:28:29+00:00

If dev_alloc_skb() failed in can_restart(), the device was left behind in the bus-off state. This patch restarts the device nevertheless. Signed-off-by: Kurt Van Dijck Signed-off-by: Wolfgang Grandegger Signed-off-by: David S. Miller

can: sja1000: remove duplicated includes

2009-07-20T19:28:26+00:00

Remove duplicated #include('s) in drivers/net/can/sja1000/sja1000.c Signed-off-by: Huang Weiyi Signed-off-by: Wolfgang Grandegger Signed-off-by: David S. Miller

can: let SJA1000 driver depend on HAS_IOMEM

2009-06-23T11:16:44+00:00

Fixes this compile error on s390: drivers/net/can/sja1000/sja1000_platform.c: In function 'sp_read_reg': drivers/net/can/sja1000/sja1000_platform.c:42: error: implicit declaration of function 'ioread8' drivers/net/can/sja1000/sja1000_platform.c: In function 'sp_write_reg': drivers/net/can/sja1000/sja1000_platform.c:47: error: implicit declaration of function 'iowrite8' drivers/net/can/sja1000/sja1000_platform.c: In function 'sp_probe': drivers/net/can/sja1000/sja1000_platform.c:79: error: implicit declaration of function 'ioremap_nocache' Cc: Wolfgang Grandegger Cc: Oliver Hartkopp Signed-off-by: Heiko Carstens Signed-off-by: David S. Miller

can: sja1000_of_platform: fix build problems with printk format

2009-06-10T08:12:39+00:00

According to "Documentation/printk-formats.txt", if the type is dependent on a config option for its size, like resource_size_t, we should use a format specifier of its largest possible type and explicitly cast to it. Signed-off-by: Wolfgang Grandegger Signed-off-by: David S. Miller

can: sja1000: generic OF platform bus driver

2009-06-01T09:53:35+00:00

This patch adds a generic driver for SJA1000 chips on the OpenFirmware platform bus found on embedded PowerPC systems. You need a SJA1000 node definition in your flattened device tree source (DTS) file similar to: can@3,100 { compatible = "nxp,sja1000"; reg = <3 0x100 0x80>; interrupts = <2 0>; interrupt-parent = <&mpic>; nxp,external-clock-frequency = <16000000>; }; See also Documentation/powerpc/dts-bindings/can/sja1000.txt. CC: devicetree-discuss@ozlabs.org Signed-off-by: Wolfgang Grandegger Signed-off-by: David S. Miller

can: sja1000: stop misusing member base_addr of struct net_device

2009-06-01T09:53:34+00:00

As discussed on the netdev mailing list, the member "base_addr" of "struct net_device" should not be (mis)used to store the virtual address to the SJA1000 register area. According to David Miller, it's only use is to allow ISA and similar primitive bus devices to have their I/O ports changed via ifconfig. The virtual address is now stored in the private data structure of the SJA1000 device and the callback functions use "struct sja1000_priv" instead of the unneeded "struct net_device". Signed-off-by: Wolfgang Grandegger Signed-off-by: David S. Miller

can: some fixes and cleanups to the initial device driver interface

2009-06-01T09:53:33+00:00

This patch fixes a few errors sneaked into the initial version of the device driver interface. Signed-off-by: Wolfgang Grandegger Signed-off-by: David S. Miller