linux.git/drivers/net/ehea, branch v2.6.26-rc7

net: Eliminate flush_scheduled_work() calls while RTNL is held.

2008-06-12T09:22:02+00:00

If the RTNL is held when we invoke flush_scheduled_work() we could
deadlock.  One such case is linkwatch, it is a work struct which tries
to grab the RTNL semaphore.

The most common case are net driver ->stop() methods.  The
simplest conversion is to instead use cancel_{delayed_}work_sync()
explicitly on the various work struct the driver uses.

This is an OK transformation because these work structs are doing
things like resetting the chip, restarting link negotiation, and so
forth.  And if we're bringing down the device, we're about to turn the
chip off and reset it anways.  So if we cancel a pending work event,
that's fine here.

Some drivers were working around this deadlock by using a msleep()
polling loop of some sort, and those cases are converted to instead
use cancel_{delayed_}work_sync() as well.

Signed-off-by: David S. Miller

ehea: set mac address fix

2008-06-10T22:20:23+00:00

eHEA has to call firmware functions in order to change the mac address
of a logical port. This patch checks if the logical port is up
when calling the register / deregister mac address calls. If the port
is down these firmware calls would fail and are therefore not executed.

Signed-off-by: Jan-Bernd Themann 
Signed-off-by: Jeff Garzik

drivers/net/ehea - remove unnecessary memset after kzalloc

2008-05-22T10:20:16+00:00

Signed-off-by: Joe Perches 
Signed-off-by: Jeff Garzik

ehea: Fix use after free on reboot

2008-05-22T10:03:31+00:00

Fixes the following use after free oops:

ehea: Reboot: freeing all eHEA resources
Unable to handle kernel paging request for data at address 0x6b6b6b6b6b6b6c5b
Faulting instruction address: 0xd000000000354488
cpu 0x0: Vector: 300 (Data Access) at [c00000002ec6f310]
    pc: d000000000354488: .ehea_shutdown_single_port+0x50/0x78 [ehea]
    lr: d00000000035447c: .ehea_shutdown_single_port+0x44/0x78 [ehea]
    sp: c00000002ec6f590
   msr: 8000000000009032
   dar: 6b6b6b6b6b6b6c5b
 dsisr: 40000000
  current = 0xc0000000281412e0
  paca    = 0xc0000000006df300
    pid   = 10930, comm = reboot
enter ? for help
[c00000002ec6f590] d00000000035d64c .ehea_remove+0x44/0x124 [ehea] (unreliable)
[c00000002ec6f630] c000000000319f88 .of_platform_device_remove+0x40/0x58
[c00000002ec6f6a0] c000000000291018 .__device_release_driver+0xb0/0xf0
[c00000002ec6f730] c000000000291120 .driver_detach+0xc8/0xfc
[c00000002ec6f7c0] c00000000028fe24 .bus_remove_driver+0xb4/0x114
[c00000002ec6f850] c000000000291768 .driver_unregister+0x54/0x74
[c00000002ec6f8e0] c00000000031a0c8 .of_unregister_driver+0x14/0x28
[c00000002ec6f950] c000000000023ba0 .ibmebus_unregister_driver+0x10/0x24
[c00000002ec6f9c0] d000000000354180 .ehea_reboot_notifier+0x30/0x4c [ehea]
[c00000002ec6fa40] c0000000003c95a8 .notifier_call_chain+0x5c/0xcc
[c00000002ec6fae0] c000000000082cd4 .__blocking_notifier_call_chain+0x70/0xb0
[c00000002ec6fb90] c000000000075cf8 .kernel_restart_prepare+0x24/0x58
[c00000002ec6fc10] c000000000075f0c .kernel_restart+0x20/0x6c
[c00000002ec6fc90] c000000000078674 .sys_reboot+0x1d4/0x290
[c00000002ec6fe30] c0000000000086ac syscall_exit+0x0/0x40

Signed-off-by: Jeff Garzik

ehea: Add DLPAR memory remove support

2008-05-13T05:31:39+00:00

The eHEA driver uses the recently modified walk_memory_resource for powerpc
functionality to detect the memory layout. It further uses the memory hotplug
notifiers to catch memory hotplug events.

Signed-off-by: Hannes Hering 
Signed-off-by: Jeff Garzik

ehea: make things static

2008-04-25T06:08:53+00:00

ehea_flush_sq() and ehea_purge_sq() should be static.

Cc: Jeff Garzik 
Cc: Thomas Klein 
Cc: Thomas Klein 
Signed-off-by: Andrew Morton 
Signed-off-by: Jeff Garzik

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2008-04-14T09:30:23+00:00

Conflicts:

	drivers/net/ehea/ehea_main.c
	drivers/net/wireless/iwlwifi/Kconfig
	drivers/net/wireless/rt2x00/rt61pci.c
	net/ipv4/inet_timewait_sock.c
	net/ipv6/raw.c
	net/mac80211/ieee80211_sta.c

ehea: Fix DLPAR memory add support

2008-04-12T08:47:50+00:00

This patch fixes two weaknesses in send/receive packet handling which may
lead to kernel panics during DLPAR memory add operations.

Signed-off-by: Thomas Klein 
Signed-off-by: Jeff Garzik

netdev: ehea: port_lock semaphore to mutex

2008-03-29T02:14:43+00:00

Convert the port_lock to a mutex.  There is also some additional cleanup.  The
line length inside the ehea_rereg_mrs was getting long so I made some
adjustments to shorten them.

[akpm@linux-foundation.org: dec99ification]
Signed-off-by: Daniel Walker 
Cc: Christoph Raisch 
Cc: Jan-Bernd Themann 
Cc: Thomas Klein 
Signed-off-by: Andrew Morton 
Signed-off-by: Jeff Garzik

netdev: ehea: bcmc_regs semaphore to mutex

2008-03-29T02:14:37+00:00

Convert the ehea_bcmc_regs.lock to a mutex.

Signed-off-by: Daniel Walker 
Cc: Christoph Raisch 
Cc: Jan-Bernd Themann 
Cc: Thomas Klein 
Signed-off-by: Andrew Morton 
Signed-off-by: Jeff Garzik