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  1. 07 Feb, 2009 5 commits
    • David S. Miller's avatar
      net_dma: call dmaengine_get only if NET_DMA enabled · b4bd07c2
      David S. Miller authored 
      Based upon a patch from Atsushi Nemoto <anemo@mba.ocn.ne.jp>

--------------------
The commit 649274d9 ("net_dma:
acquire/release dma channels on ifup/ifdown") added unconditional call
of dmaengine_get() to net_dma.  The API should be called only if
NET_DMA was enabled.
--------------------
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Acked-by: default avatarDan Williams <dan.j.williams@intel.com>
      b4bd07c2
    • Ondrej Zary's avatar
      3c509: Fix resume from hibernation for PnP mode. · 152abd13
      Ondrej Zary authored 
      From: Ondrej Zary <linux@rainbow-software.org>

last year, I posted a patch which fixed hibernation on 3c509
cards. That was back in 2.6.24. It worked fine in 2.6.25. But then I
stopped using hibernation (as it did not work with my new IT8212 RAID
controller).

Now I fixed it and noticed that 3c509 does not wake up properly
anymore (in 2.6.28) - neither in PnP nor in ISA modes. ifconfig
down/up makes the card work again in PnP mode. However, in ISA mode,
ifconfig up ends with "No such device" error.

Comparing the 3c509 driver between 2.6.25 and 2.6.28, there's only
some statistics-related change. So the cause of the problem must be
somewhere else.

This patch makes the resume work in PnP mode, but it's still not
enough for ISA mode.
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      152abd13
    • Ilkka Virta's avatar
      sungem: Soft lockup in sungem on Netra AC200 when switching interface up · 71822faa
      Ilkka Virta authored 
      From: Ilkka Virta <itvirta@iki.fi>

In the lockup situation the driver seems to go off in an eternal storm
of interrupts right after calling request_irq(). It doesn't actually
do anything interesting in the interrupt handler. Since connecting the link
afterwards works, something later in initialization must fix this.

Looking at gem_do_start() and gem_open(), it seems that the only thing
done while opening the device after the request_irq(), is a call to
napi_enable().

I don't know what the ordering requirements are for the
initialization, but I boldly tried to move the napi_enable() call
inside gem_do_start() before the link state is checked and interrupts
subsequently enabled, and it seems to work for me. Doesn't even break
anything too obvious...
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      71822faa
    • David Howells's avatar
      RxRPC: Fix a potential NULL dereference · 15bde727
      David Howells authored 
      Fix a potential NULL dereference bug during error handling in
rxrpc_kernel_begin_call(), whereby rxrpc_put_transport() may be handed a NULL
pointer.

This was found with a code checker (http://repo.or.cz/w/smatch.git/).
Reported-by: default avatarDan Carpenter <error27@gmail.com>
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      15bde727
    • Ivan Vecera's avatar
      r8169: Don't update statistics counters when interface is down · 355423d0
      Ivan Vecera authored 
      Some Realtek chips (RTL8169sb/8110sb in my case) are unable to retrieve
ethtool statistics when the interface is down. The process stays in
endless loop in rtl8169_get_ethtool_stats. This is because these chips
need to have receiver enabled (CmdRxEnb bit in ChipCmd register) that is
cleared when the interface is going down. It's better to update statistics
only when the interface is up and otherwise return copy of statistics
grabbed when the interface was up (in rtl8169_close).

It is interesting that PCI-E NICs (like 8168b/8111b...) are not affected.
Signed-off-by: default avatarIvan Vecera <ivecera@redhat.com>
Acked-by: default avatarFrancois Romieu <romieu@fr.zoreil.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      355423d0
  3. 06 Feb, 2009 3 commits
  5. 05 Feb, 2009 7 commits
  7. 04 Feb, 2009 2 commits
    • Reinette Chatre's avatar
      iwlwifi: save PCI state before suspend, restore after resume · c4e061ac
      Reinette Chatre authored 
      This is the right thing to do and fixes the following warning:

[  115.012278] ------------[ cut here ]------------
[  115.012281] WARNING: at drivers/pci/pci-driver.c:370
pci_legacy_suspend+0x85/0xc2()
[  115.012285] Hardware name: Latitude D630
[  115.012301] PCI PM: Device state not saved by
iwl3945_pci_suspend+0x0/0x4c [iwl3945]
[  115.012304] Modules linked in: fuse nfsd lockd nfs_acl auth_rpcgss
exportfs sunrpc ipv6 acpi_cpufreq kvm_intel kvm snd_hda_codec_idt
snd_hda_intel snd_hda_codec snd_hwdep arc4 snd_seq_device snd_pcm_oss
snd_mixer_oss ecb snd_pcm cryptomgr aead snd_timer crypto_blkcipher
snd snd_page_alloc ohci1394 crypto_hash crypto_algapi ch341 ieee1394
usbserial thermal iwl3945 mac80211 led_class lib80211 tg3 processor
i2c_i801 i2c_core sg cfg80211 libphy usbhid battery ac button sr_mod
cdrom evdev dcdbas ata_generic ata_piix libata sd_mod scsi_mod ext3
jbd mbcache uhci_hcd ohci_hcd ehci_hcd usbcore [last unloaded:
microcode]
[  115.012374] Pid: 4163, comm: pm-suspend Not tainted
2.6.29-rc3-00227-gf1dd849-dirty #67
[  115.012377] Call Trace:
[  115.012382]  [<ffffffff8023d04d>] warn_slowpath+0xb1/0xed
[  115.012387]  [<ffffffff80450b5e>] ? _spin_unlock_irqrestore+0x5c/0x78
[  115.012390]  [<ffffffff80254f08>] ? up+0x34/0x39
[  115.012394]  [<ffffffff80362319>] ? acpi_ut_release_mutex+0x5d/0x61
[  115.012397]  [<ffffffff803584b2>] ? acpi_get_data+0x5e/0x70
[  115.012400]  [<ffffffff80363dd9>] ? acpi_bus_get_device+0x25/0x39
[  115.012403]  [<ffffffff80363e98>] ? acpi_bus_power_manageable+0x11/0x29
[  115.012406]  [<ffffffff803462f7>] ? acpi_pci_power_manageable+0x17/0x19
[  115.012410]  [<ffffffff8033ddfd>] ? pci_set_power_state+0xcc/0x101
[  115.012418]  [<ffffffffa01f28e9>] ? iwl3945_pci_suspend+0x0/0x4c [iwl3945]
[  115.012422]  [<ffffffff803401e6>] pci_legacy_suspend+0x85/0xc2
[  115.012425]  [<ffffffff80340316>] pci_pm_suspend+0x34/0x86
[  115.012429]  [<ffffffff8039d7ce>] pm_op+0x52/0xe5
[  115.012432]  [<ffffffff8039dd78>] device_suspend+0x32a/0x451
[  115.012436]  [<ffffffff80269ec2>] suspend_devices_and_enter+0x3e/0x13a
[  115.012439]  [<ffffffff8026a128>] enter_state+0x110/0x164
[  115.012442]  [<ffffffff8026a233>] state_store+0xb7/0xd7
[  115.012446]  [<ffffffff8032f95f>] kobj_attr_store+0x17/0x19
[  115.012449]  [<ffffffff80307d64>] sysfs_write_file+0xe4/0x119
[  115.012453]  [<ffffffff802baa7a>] vfs_write+0xae/0x137
[  115.012456]  [<ffffffff802babc7>] sys_write+0x47/0x70
[  115.012459]  [<ffffffff8020b73a>] system_call_fastpath+0x16/0x1b
[  115.012467] ---[ end trace 829828966f6f24dc ]---
Signed-off-by: default avatarReinette Chatre <reinette.chatre@intel.com>
Tested-by: default avatarMing Lei <tom.leiming@gmail.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      c4e061ac
    • Reinette Chatre's avatar
      iwlwifi: clean key table in iwl_clear_stations_table · 5e46882e
      Reinette Chatre authored 
      Cleans uCode key table bit map iwl_clear_stations_table
since all stations are cleared also the key table must be.

Since the keys are not removed properly on suspend by mac80211
this may result in exhausting key table on resume leading
to memory corruption during removal
Signed-off-by: default avatarTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: default avatarReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      5e46882e
  9. 03 Feb, 2009 20 commits
  11. 02 Feb, 2009 3 commits