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2009-06-18netxen: fix detection of cut-thru firmware modeDhananjay Phadke
Fix the detection of cut-thru mode of the hardware (direct dma to host) to mode configured in SRE (ingress block) rather than onboard memory control. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-18forcedeth: fix dma api mismatchesEric Dumazet
forcedeth doesnt use properly dma api in its tx completion path and in nv_loopback_test() pci_map_single() should be paired with pci_unmap_single() pci_map_page() should be paired with pci_unmap_page() forcedeth xmit path uses pci_map_single() & pci_map_page(), but tx completion path only uses pci_unmap_single() nv_loopback_test() uses pci_map_single() & pci_unmap_page() Add a dma_single field in struct nv_skb_map, and define a helper function nv_unmap_txskb Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Ayaz Abdulla <aabdulla@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-18via-velocity : fix no link detection on bootSéguier Régis
on boot, link is always up. Signed-off-by: Seguier Regis <rseguier@e-teleport.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-18Net / e100: Fix suspend of devices that cannot be power managedRafael J. Wysocki
If the adapter is not power-manageable using either ACPI, or the native PCI PM interface, __e100_power_off() returns error code, which causes every attempt to suspend to fail, although it should return 0 in such a case. Fix this problem by ignoring the return value of pci_set_power_state() in __e100_power_off(). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Andreas Mohr <andi@lisas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-18TI DaVinci EMAC : Fix rmmod errorchaithrika@ti.com
clk_disable was called twice in the remove function. Correct this so that the driver module unloads without error. Signed-off-by: Chaithrika U S <chaithrika@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-18net: group address list and its countJiri Pirko
This patch is inspired by patch recently posted by Johannes Berg. Basically what my patch does is to group list and a count of addresses into newly introduced structure netdev_hw_addr_list. This brings us two benefits: 1) struct net_device becames a bit nicer. 2) in the future there will be a possibility to operate with lists independently on netdevices (with exporting right functions). I wanted to introduce this patch before I'll post a multicast lists conversion. Signed-off-by: Jiri Pirko <jpirko@redhat.com> drivers/net/bnx2.c | 4 +- drivers/net/e1000/e1000_main.c | 4 +- drivers/net/ixgbe/ixgbe_main.c | 6 +- drivers/net/mv643xx_eth.c | 2 +- drivers/net/niu.c | 4 +- drivers/net/virtio_net.c | 10 ++-- drivers/s390/net/qeth_l2_main.c | 2 +- include/linux/netdevice.h | 17 +++-- net/core/dev.c | 130 ++++++++++++++++++-------------------- 9 files changed, 89 insertions(+), 90 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sky2: version 1.23Stephen Hemminger
Version bump. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sky2: add GRO supportStephen Hemminger
Add support for generic receive offload. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sky2: skb recyclingStephen Hemminger
This patch implements skb recycling. It reclaims transmitted skb's for use in the receive ring. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sky2: reduce default transmit ringStephen Hemminger
Reduce the size of the driver transmit ring to reduce latency and allow qdisc to do better rate control. Also make it obvious what the minimum transmit ring allowed is and why. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sky2: receive counter updateStephen Hemminger
Since it is likely that there are multiple packets received per interrupt, only update the receive counters once after all packets are processed. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sky2: fix shutdown synchronizationStephen Hemminger
The logic in sky2_down was incorrect. Receiver could report status after rx_stop was called. The steps need to be: * stop new frames from being transmitted * shut off transmit/receive logic * synchronize with NAPI to process status info about transmitter and receiver Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sky2: PCI irq issuesStephen Hemminger
Add some read's to avoid any PCI posting issues when controlling irq's. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sky2: more receive shutdownStephen Hemminger
Reset more parts of the receive path when device is take offline. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sky2: turn off pause during shutdownStephen Hemminger
This unblocks the chip if it is stuck in pause cycle during shutdown. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17r8169: do not bring device down when suspendingfrançois romieu
Stopping all activity through ChipCmd and blindly acking the irqs is neither nice nor completely needed: the transition to low-power mode does enough work and it apparently keeps the device in a sane state. Patch suggested by a fix for http://bugzilla.kernel.org/show_bug.cgi?id=9512 The rtl_shutdown path is kept unchanged so far. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Tested-by: Anders Eriksson <aeriksson@fastmail.fm> Cc: Edward Hsu <edward_hsu@realtek.com.tw> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sis190: use an adequate phy list entry as a fallbackfrançois romieu
When sis190 driver is trying to get default phy, if it doesn't find home or lan phy, it falls back to the first phy in the phy list but list_entry() points to a bogus entry. list_first_entry() should be used instead. Signed-off-by: Arnaud Patard <apatard@mandriva.com> Acked-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17net/ucc_geth: Add SGMII support for UCC GETH driverHaiying Wang
-- derived from reverted commit 047584ce94108012288554a5f84585d792cc7f8f -- reworked by Grant Likely to play nice with commit: "net: Rework ucc_geth driver to use of_mdio infrastructure" (0b9da337dca972e7a4144e298ec3adb8f244d4a4) Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17Revert "net/ucc_geth: Add SGMII support for UEC GETH driver"Grant Likely
This reverts commit 047584ce94108012288554a5f84585d792cc7f8f. This patch meshes badly with "net: Rework ucc_geth driver to use of_mdio infrastructure" (0b9da337dca972e7a4144e298ec3adb8f244d4a4). Since most of the patch needs to be reworked, it is clearer to revert the patch and then apply the corrected version Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-18Merge commit 'gcl/merge' into nextBenjamin Herrenschmidt
Manual merge of: drivers/net/fec_mpc52xx.c
2009-06-18Merge commit 'origin/master' into nextBenjamin Herrenschmidt
2009-06-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: [SCSI] aic79xx: make driver respect nvram for IU and QAS settings [SCSI] don't attach ULD to Dell Universal Xport [SCSI] lpfc 8.3.3 : Update driver version to 8.3.3 [SCSI] lpfc 8.3.3 : Add support for Target Reset handler entrypoint [SCSI] lpfc 8.3.3 : Fix a couple of spin_lock and memory issues and a crash [SCSI] lpfc 8.3.3 : FC/FCOE discovery fixes [SCSI] lpfc 8.3.3 : Fix various SLI-3 vs SLI-4 differences [SCSI] qla2xxx: Resolve a performance issue in interrupt [SCSI] cnic, bnx2i: Fix build failure when CONFIG_PCI is not set. [SCSI] nsp_cs: time_out reaches -1 [SCSI] qla2xxx: fix printk format warnings [SCSI] ncr53c8xx: div reaches -1 [SCSI] compat: don't perform unneeded copy in sg_io code [SCSI] zfcp: Update FC pass-through support [SCSI] zfcp: Add FC pass-through support [SCSI] FC Pass Thru support
2009-06-17phy_device: fix parameter name in kernel-docRandy Dunlap
Fix kernel-doc parameter name in phy_device.c. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17net: fix network drivers ndo_start_xmit() return valuesPatrick McHardy
Fix up remaining drivers returning a magic or an errno value from their ndo_start_xmit() functions that were missed in the first pass: - isdn_net: missed conversion - bpqether: missed conversion: skb is freed, so return NETDEV_TX_OK - hp100: intention appears to be to resubmit skb once resources are available, but due to no queue handling it is dropped for now. - lapbether: skb is freed, so return NETDEV_TX_OK Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17vxge: Enable SRIOV support in the driver.Sivakumar Subramani
- Enabled SRIOV support in the driver. - Call __vxge_hw_verify_pci_e_info() for the PF only. This function verifies the negotiated link width and current link speed in the Link Status Register (offset 12h) which are reserved fields for VFs as per the SRIOV specification, section 3.5.8. - Implemented David Miller's comment to remove the #ifdef CONFIG_PCI_IOV as these intefaces have NOP versions declared when the defintion is not set. Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com> Signed-off-by: Rastapur Santosh <santosh.rastapur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17sonic: Fix build after ndo_start_xmit() changes.David S. Miller
Noticed by Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17powerpc/5xxx: Add common mpc5xxx_get_bus_frequency() functionWolfgang Denk
So far, MPC512x used mpc512x_find_ips_freq() to get the bus frequency, while MPC52xx used mpc52xx_find_ipb_freq(). Despite the different clock names (IPS vs. IPB) the code was identical. Use common code for both processor families. Signed-off-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-06-17Merge commit 'origin/master' into nextBenjamin Herrenschmidt
2009-06-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (64 commits) debugfs: use specified mode to possibly mark files read/write only debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem. xen: remove driver_data direct access of struct device from more drivers usb: gadget: at91_udc: remove driver_data direct access of struct device uml: remove driver_data direct access of struct device block/ps3: remove driver_data direct access of struct device s390: remove driver_data direct access of struct device parport: remove driver_data direct access of struct device parisc: remove driver_data direct access of struct device of_serial: remove driver_data direct access of struct device mips: remove driver_data direct access of struct device ipmi: remove driver_data direct access of struct device infiniband: ehca: remove driver_data direct access of struct device ibmvscsi: gadget: at91_udc: remove driver_data direct access of struct device hvcs: remove driver_data direct access of struct device xen block: remove driver_data direct access of struct device thermal: remove driver_data direct access of struct device scsi: remove driver_data direct access of struct device pcmcia: remove driver_data direct access of struct device PCIE: remove driver_data direct access of struct device ... Manually fix up trivial conflicts due to different direct driver_data direct access fixups in drivers/block/{ps3disk.c,ps3vram.c}
2009-06-16Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (38 commits) ps3flash: Always read chunks of 256 KiB, and cache them ps3flash: Cache the last accessed FLASH chunk ps3: Replace direct file operations by callback ps3: Switch ps3_os_area_[gs]et_rtc_diff to EXPORT_SYMBOL_GPL() ps3: Correct debug message in dma_ioc0_map_pages() drivers/ps3: Add missing annotations ps3fb: Use ps3_system_bus_[gs]et_drvdata() instead of direct access ps3flash: Use ps3_system_bus_[gs]et_drvdata() instead of direct access ps3: shorten ps3_system_bus_[gs]et_driver_data to ps3_system_bus_[gs]et_drvdata ps3: Use dev_[gs]et_drvdata() instead of direct access for system bus devices block/ps3: remove driver_data direct access of struct device ps3vram: Make ps3vram_priv.reports a void * ps3vram: Remove no longer used ps3vram_priv.ddr_base ps3vram: Replace mutex by spinlock + bio_list block: Add bio_list_peek() powerpc: Use generic atomic64_t implementation on 32-bit processors lib: Provide generic atomic64_t implementation powerpc: Add compiler memory barrier to mtmsr macro powerpc/iseries: Mark signal_vsp_instruction() as maybe unused powerpc/iseries: Fix unused function warning in iSeries DT code ...
2009-06-16Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2009-06-16sky2: don't look for VPD sizeStephen Hemminger
The code to compute VPD size didn't handle some systems that use chip without VPD. Also some of the newer chips use some additional registers to store the actual size, and wasn't worth putting the additional complexity in, so just remove the code. No big loss since the code to set the VPD size was only a convenience so that utilities would not read the extra space past the end of the available VPD. Move the first PCI config read earlier to detect bad hardware where it returns all ones and refuse loading driver before furthur damage. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Tested-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-15debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.GeunSik Lim
Many developers use "/debug/" or "/debugfs/" or "/sys/kernel/debug/" directory name to mount debugfs filesystem for ftrace according to ./Documentation/tracers/ftrace.txt file. And, three directory names(ex:/debug/, /debugfs/, /sys/kernel/debug/) is existed in kernel source like ftrace, DRM, Wireless, Documentation, Network[sky2]files to mount debugfs filesystem. debugfs means debug filesystem for debugging easy to use by greg kroah hartman. "/sys/kernel/debug/" name is suitable as directory name of debugfs filesystem. - debugfs related reference: http://lwn.net/Articles/334546/ Fix inconsistency of directory name to mount debugfs filesystem. * From Steven Rostedt - find_debugfs() and tracing_files() in this patch. Signed-off-by: GeunSik Lim <geunsik.lim@samsung.com> Acked-by : Inaky Perez-Gonzalez <inaky@linux.intel.com> Reviewed-by : Steven Rostedt <rostedt@goodmis.org> Reviewed-by : James Smart <james.smart@emulex.com> CC: Jiri Kosina <trivial@kernel.org> CC: David Airlie <airlied@linux.ie> CC: Peter Osterlund <petero2@telia.com> CC: Ananth N Mavinakayanahalli <ananth@in.ibm.com> CC: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> CC: Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15xen: remove driver_data direct access of struct device from more driversGreg Kroah-Hartman
In the near future, the driver core is going to not allow direct access to the driver_data pointer in struct device. Instead, the functions dev_get_drvdata() and dev_set_drvdata() should be used. These functions have been around since the beginning, so are backwards compatible with all older kernel versions. Cc: xen-devel@lists.xensource.com Cc: virtualization@lists.osdl.org Acked-by: Chris Wright <chrisw@sous-sol.org> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15Driver Core: misc: add nodename support for misc devices.Kay Sievers
This adds support for misc devices to report their requested nodename to userspace. It also updates a number of misc drivers to provide the needed subdirectory and device name to be used for them. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15firmware: wireless/libertas: prepare for FIRMWARE_NAME_MAX removalJohn W. Linville
We're going to remove the FIRMWARE_NAME_MAX definition in order to avoid any firmware name length restriction. This patch eplaces the shared FIRMWARE_NAME_MAX definition with a libertas local one. Signed-off-by: John W. Linville <linville@tuxdriver.com> Acked-by: Dan Williams <dcbw@redhat.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-16net/ps3: gelic - Add missing annotationsGeert Uytterhoeven
probe functions should be __devinit Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ath9k: process rx packet if we are waiting for CABGabor Juhos
If we are in PS mode, we have to process the received frame if the SC_OP_WAIT_FOR_CAB bit is set. Changes-licensed-under: ISC Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15ath9k: prevent sleeping while we are waiting for CABGabor Juhos
We have to remain awake if the SC_OP_WAIT_FOR_CAB flag is set. Changes-licensed-under: ISC Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15ath9k: restore power mode on error pathGabor Juhos
The ath9k_ps_{wakeup,restore} calls must be in balance. Changes-licensed-under: ISC Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15ath9k: port to cfg80211 rfkillJohannes Berg
This ports the ath9k rfkill code to the new API offered by cfg80211 and thus removes a lot of useless stuff. ("With this series a kernel panic, which is a regression, during module unload disappears." -- Vasanthakumar Thiagarajan <vasanth@atheros.com> Other patches in the series: ath9k: Add helper to get ath9k specific current channel ath9k: Make sure we have current channel in ah_curchan before rf disable/enable -- JWL) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Luis Rodriguez <mcgrof@gmail.com> Tested-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15ath9k: Make sure we have current channel in ah_curchan before rf disable/enableVasanthakumar Thiagarajan
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15ath9k: Add helper to get ath9k specific current channelVasanthakumar Thiagarajan
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15ath5k: fix mesh beaconingNick Kossifidis
This patch is from Nick Kossifidis but he forgot to send it. It ensures that the beacon queue gets started in mesh mode as well, otherwise ath5k will not beacon in mesh point mode. At this time, we still need to issue a scan before mesh beaconing will work but that appears to be a separate problem. Signed-off-by: Andrey Yurovsky <andrey@cozybit.com> Signed-off-by: Nick Kossifidis <mickflemm@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15iwlwifi/iwl3945: fix suspend resume association bugAbhijeet Kolekar
Patch fixes the following bugs at http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=2005 http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=2007 If we suspend with an association and then resumed, we need to synchronize the active rxon with staging rxon, else we will get an error when iwl_alive_start try to commit rxon and staging is set to channel 0. Before going to suspend staging and active rxon are in sync. After resuming from the suspend, iwl_mac_start is called and it clears the staging rxon. Patch fixes the bug by not clearing the staging rxon in iwl_mac_start. Patch also adds similar fix to 3945. Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15iwlwifi: check for channel location for 40MHzWey-Yi Guy
for both mixed and pure 40MHz, need to check for valid channel location. if the specified channel not allow the channel location requested (ABOVE, BELOW), then reject the Fat channel access This fixes http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1988 ("iwlwifi: checking for 40MHz mode" and "iwlwifi: check control channel for pure 40MHz" combine with this to address the above bug. -- JWL) Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15iwlwifi: check control channel for pure 40MHzWey-Yi Guy
for pure 40MHz mode, set the control channel location if provided, but not like Mixed mode; if information is not provided, still allow 40MHz operation. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15iwlwifi: checking for 40MHz modeWey-Yi Guy
when checking for 40MHz, compare ht_protection to IEEE80211_HT_OP_MODE_PROTECTION_20MHZ. ht_protection is not a bit-mask field Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15iwlwifi: revamp bss_info_changedJohannes Berg
My earlier patch, "mac80211: unify config_interface and bss_info_changed" introduced a bug in iwlwifi where it will do some things incorrectly now when reassociating. Revamp iwl_bss_info_changed to fix that issue and make it easier to read. Also, while at it, add comments about things that it should do but currently doesn't. Finally, also improve the locking in the function. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15net/libertas: don't recursive spin lock in if_spi_e2h()Sebastian Andrzej Siewior
|BUG: spinlock recursion on CPU#0, lbs_spi_thread/1030 | lock: dee9a1bc, .magic: dead4ead, .owner: lbs_spi_thread/1030, .owner_cpu: 0 |Call Trace: |[deec3eb0] [c0007220] show_stack+0x4c/0x15c (unreliable) |[deec3ef0] [c0187720] spin_bug+0x9c/0xb0 |[deec3f10] [c0187890] _raw_spin_lock+0x54/0x148 |[deec3f40] [c02d260c] _spin_lock_irqsave+0x2c/0x44 |[deec3f60] [e8671800] lbs_queue_event+0x7c/0x130 [libertas] |[deec3f80] [e8725f04] lbs_spi_thread+0x538/0x58c [libertas_spi] |[deec3fe0] [c004f270] kthread+0x4c/0x88 |[deec3ff0] [c000f33c] kernel_thread+0x4c/0x68 if_spi_e2h() is grabbing ->driver_lock just while calling lbs_queue_event() which is grabbing the same lock. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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