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2011-06-21Merge branch 'master' of ↵David S. Miller257-1620/+4531
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-agn-rxon.c drivers/net/wireless/rtlwifi/pci.c net/netfilter/ipvs/ip_vs_core.c
2011-06-21Merge branch 'drm-fixes' of ↵Linus Torvalds10-61/+84
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon/kms/r6xx+: voltage fixes drm/nouveau: drop leftover debugging drm/radeon: avoid warnings from r600/eg irq handlers on powered off card. drm/radeon/kms: add missing param for dce3.2 DP transmitter setup drm/radeon/kms/atom: fix duallink on some early DCE3.2 cards drm/nouveau: fix assumption that semaphore dmaobj is valid in x-chan sync drm/nv50/disp: fix gamma with page flipping overlay turned on drm/nouveau/pm: Prevent overflow in nouveau_perf_init() drm/nouveau: fix big-endian switch
2011-06-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds22-38/+490
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits) pxa168_eth: fix race in transmit path. ipv4, ping: Remove duplicate icmp.h include netxen: fix race in skb->len access sgi-xp: fix a use after free hp100: fix an skb->len race netpoll: copy dev name of slaves to struct netpoll ipv4: fix multicast losses r8169: fix static initializers. inet_diag: fix inet_diag_bc_audit() gigaset: call module_put before restart of if_open() farsync: add module_put to error path in fst_open() net: rfs: enable RFS before first data packet is received fs_enet: fix freescale FCC ethernet dp buffer alignment netdev: bfin_mac: fix memory leak when freeing dma descriptors vlan: don't call ndo_vlan_rx_register on hardware that doesn't have vlan support caif: Bugfix - XOFF removed channel from caif-mux tun: teach the tun/tap driver to support netpoll dp83640: drop PHY status frames in the driver. dp83640: fix phy status frame event parsing phylib: Allow BCM63XX PHY to be selected only on BCM63XX. ...
2011-06-21drm/radeon/kms/r6xx+: voltage fixesAlex Deucher4-0/+16
0xff01 is not an actual voltage value, but a flag for the driver. If the power state as that value, skip setting the voltage. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-21pxa168_eth: fix race in transmit path.Richard Cochran1-1/+1
Because the socket buffer is freed in the completion interrupt, it is not safe to access it after submitting it to the hardware. Cc: stable@kernel.org Cc: Sachin Sanap <ssanap@marvell.com> Cc: Zhangfei Gao <zgao6@marvell.com> Cc: Philip Rakity <prakity@marvell.com> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21gianfar v5: implement nfcSebastian Poehn3-4/+989
This patch adds all missing functionalities for nfc except GRXFH. There is so much code because hardware has not a TCAM. Further hardware rule space is very limited. So I had to extensively use optimization features. Both reasons lead to the necessity to hold all online flows in a linked-list. Change-log: # Some suggestions by Joe Perches applied (thanks!) # Shorted some logs # Use memcmp() for comparing Signed-off-by: Sebastian Poehn <sebastian.poehn@belden.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21ucc_geth: enable transmit time stamping.Richard Cochran1-0/+2
This patch enables software (and phy device) transmit time stamping. Compile tested only. Cc: Shlomi Gridish <gridish@freescale.com> Cc: Li Yang <leoli@freescale.com> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21pxa168_eth: enable transmit time stamping.Richard Cochran1-0/+3
This patch enables software (and phy device) transmit time stamping Compile tested only. Cc: Sachin Sanap <ssanap@marvell.com> Cc: Zhangfei Gao <zgao6@marvell.com> Cc: Philip Rakity <prakity@marvell.com> Cc: Mark Brown <markb@marvell.com> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21smsc911x: enable transmit time stamping.Richard Cochran1-0/+1
This patch enables software (and phy device) transmit time stamping. Compile tested only. Cc: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21fs_enet: enable transmit time stamping.Richard Cochran1-0/+2
This patch enables software (and phy device) transmit time stamping. Compile tested only. Cc: Pantelis Antoniou <pantelis.antoniou@gmail.com> Cc: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21macb: enable transmit time stamping.Richard Cochran1-0/+2
This patch enables software (and phy device) transmit time stamping Compile tested only. Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21fec_mpc52xx: enable transmit and receive time stamping.Richard Cochran1-1/+3
This patch enables software (and phy device) time stamping. Software time stamping using the SO_TIMESTAMPING API was tested and found to be working on the LITE5200B board. Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21ll_temac: enable transmit and receive time stamping.Richard Cochran1-1/+4
This patch enables software (and phy device) time stamping. Since this MAC is based on phylib, adding the hooks makes hardware time stamping in the phy possible. Compile tested only. Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21emaclite: enable transmit and receive time stamping.Richard Cochran1-2/+7
This patch enables software (and phy device) time stamping. Since this MAC uses phylib, adding the hooks make hardware time stamping in the phy possible. Compile tested only. Cc: John Linn <john.linn@xilinx.com> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21lib8390: enable transmit and receive time stamping.Richard Cochran1-2/+3
This patch enables software (and phy device) time stamping. This file is included by drivers/net/ax88796.c, which is based on phylib. So, this patch makes hardware time stamping in the PHY possible. Compile tested only. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21netxen: fix race in skb->len accessEric Dumazet1-2/+2
As soon as skb is given to hardware, TX completion can free skb under us. Therefore, we should update dev stats before kicking the device. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21myricom: remove stats_lockEric Dumazet1-7/+3
stats_lock is non useless, lets remove it. Also, ndo_get_stats64() doesnt have to clear the stats, caller takes care of this. Note: folding 32bit fields in 64bit one is problematic when one of 32bit values wraps : SNMP reader will see a ~2^32 back change in a 64bit value. A future patch should fix this. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Stephen Hemminger <shemminger@vyatta.com> CC: Andrew Gallatin <gallatin@myri.com> CC: Brice Goglin <brice@myri.com> Acked-by: Jon Mason <mason@myri.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20myri_sbus: remove driverJon Mason4-1508/+0
Remove the myri_sbus driver. Why? * There is no possibility of ethernet mode on this adapter, so it's Myrinet only. * It won't inter-op with modern versions of Myrinet, and thus can only work with legacy adapters. * There are no in-kernel Linux drivers for the PCI version of this adapter, so it only can work on ~15 year old Sun hardware. It's long in the tooth, let's take it to the knackers. Signed-off-by: Jon Mason <mason@myri.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20Merge branch 'stable/bug.fixes' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen * 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/setup: Fix for incorrect xen_extra_mem_start. xen: When calling power_off, don't call the halt function. xen: Fix compile warning when CONFIG_SMP is not defined. xen: support CONFIG_MAXSMP xen: partially revert "xen: set max_pfn_mapped to the last pfn mapped"
2011-06-20Merge branch 'for-linus' of ↵Linus Torvalds5-5/+7
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: sh_keysc - 8x8 MODE_6 fix Input: omap-keypad - add missing input_sync() Input: evdev - try to wake up readers only if we have full packet Input: properly assign return value of clamp() macro.
2011-06-20veth: fix 64bit stats on 32bit archesEric Dumazet1-18/+37
Using 64bit stats on 32bit arches must use a synchronization or readers can get transient values. Fixes bug introduced in commit 6311cc44a2 (veth: convert to 64 bit statistics) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20net/staging: add needed interrupt.h and hardirq.h includesStephen Rothwell12-0/+15
Made necessary by commit a6b7a407865a ("net: remove interrupt.h inclusion from netdevice.h"). Fixes these build errors: drivers/staging/brcm80211/brcmfmac/dhd_linux.c:1212:3: error: implicit declaration of function 'in_interrupt' drivers/staging/brcm80211/brcmfmac/dhd_linux.c:1390:4: error: implicit declaration of function 'tasklet_schedule' drivers/staging/brcm80211/brcmfmac/dhd_linux.c:1988:3: error: implicit declaration of function 'tasklet_init' drivers/staging/brcm80211/brcmfmac/dhd_linux.c:2288:5: error: implicit declaration of function 'tasklet_kill' drivers/staging/brcm80211/brcmfmac/dhd_linux.c:232:24: error: field 'tasklet' has incomplete type drivers/staging/brcm80211/brcmfmac/wl_iw.c:3670:2: error: implicit declaration of function 'in_interrupt' drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:1349:3: error: implicit declaration of function 'free_irq' drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:1352:2: error: implicit declaration of function 'tasklet_kill' drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:1538:4: error: implicit declaration of function 'tasklet_schedule' drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:765:2: error: implicit declaration of function 'tasklet_init' drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:817:2: error: implicit declaration of function 'request_irq' drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:817:31: error: 'IRQF_SHARED' undeclared (first use in this function) drivers/staging/brcm80211/brcmsmac/wl_mac80211.h:65:24: error: field 'tasklet' has incomplete type drivers/staging/rtl8187se/ieee80211/ieee80211.h:994:24: error: field 'ps_task' has incomplete type drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:1790:3: error: implicit declaration of function 'tasklet_schedule' drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:2590:2: error: implicit declaration of function 'tasklet_init' drivers/staging/rtl8187se/r8180.h:461:24: error: field 'irq_rx_tasklet' has incomplete type drivers/staging/rtl8187se/r8180_core.c:2764:2: error: implicit declaration of function 'tasklet_init' drivers/staging/rtl8187se/r8180_core.c:2954:2: error: implicit declaration of function 'request_irq' drivers/staging/rtl8187se/r8180_core.c:2954:55: error: 'IRQF_SHARED' undeclared (first use in this function) drivers/staging/rtl8187se/r8180_core.c:3641:4: error: implicit declaration of function 'free_irq' drivers/staging/rtl8187se/r8180_core.c:4026:3: error: implicit declaration of function 'tasklet_schedule' drivers/staging/rtl8192e/ieee80211/ieee80211.h:2000:24: error: field 'ps_task' has incomplete type drivers/staging/rtl8192e/r8192E.h:909:24: error: field 'irq_rx_tasklet' has incomplete type drivers/staging/rtl8192e/r8192E.h:910:24: error: field 'irq_tx_tasklet' has incomplete type drivers/staging/rtl8192e/r8192E.h:911:31: error: field 'irq_prepare_beacon_tasklet' has incomplete type drivers/staging/rtl8192e/r8192E_core.c:2008:2: error: implicit declaration of function 'tasklet_init' drivers/staging/rtl8192e/r8192E_core.c:2412:54: error: 'IRQF_SHARED' undeclared (first use in this function) drivers/staging/rtl8192e/r8192E_core.c:2412:9: error: implicit declaration of function 'request_irq' drivers/staging/rtl8192e/r8192E_core.c:4640:4: error: implicit declaration of function 'free_irq' drivers/staging/rtl8192e/r8192E_core.c:620:2: error: implicit declaration of function 'synchronize_irq' drivers/staging/rtl8192e/r8192E_core.c:913:3: error: implicit declaration of function 'tasklet_schedule' drivers/staging/rtl8192u/ieee80211/ieee80211.h:1993:24: error: field 'ps_task' has incomplete type Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20drm/nouveau: drop leftover debuggingDave Airlie1-1/+0
this printk isn't really useful, just drop it for now. Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-20Merge branch 'drm-nouveau-fixes' of ↵Dave Airlie4-39/+46
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes * 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nouveau: fix assumption that semaphore dmaobj is valid in x-chan sync drm/nv50/disp: fix gamma with page flipping overlay turned on drm/nouveau/pm: Prevent overflow in nouveau_perf_init() drm/nouveau: fix big-endian switch
2011-06-20drm/radeon: avoid warnings from r600/eg irq handlers on powered off card.Dave Airlie2-18/+14
Since we were calling the wptr function before checking if the IH was even enabled, or the GPU wasn't shutdown, we'd get spam in the logs when the GPU readback 0xffffffff. This reorders things so we return early in the no IH and GPU shutdown cases. Reported-and-tested-by: ManDay on #radeon Reviewed-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-20drm/radeon/kms: add missing param for dce3.2 DP transmitter setupAlex Deucher1-2/+3
This is used during phy init to set up the phy for DP. This may fix DP problems on DCE3.2 cards. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-20drm/radeon/kms/atom: fix duallink on some early DCE3.2 cardsAlex Deucher1-1/+5
Certain revisions of the vbios on DCE3.2 cards have a bug in the transmitter control table which prevents duallink from being enabled properly on some cards. The action switch statement jumps to the wrong offset for the OUTPUT_ENABLE action. The fix is to use the ENABLE action rather than the OUTPUT_ENABLE action on the affected cards. In fixed version of the vbios, both actions jump to the same offset, so the change should be safe. Reported-and-tested-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-20davinci_emac: fix race in transmit time stamping.Richard Cochran1-1/+2
Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20smsc9420: fix race in transmit time stamping.Richard Cochran1-2/+2
Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20stmmac: fix race in transmit time stamping.Richard Cochran1-2/+2
Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20r6040: fix race in transmit time stamping.Richard Cochran1-2/+3
Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20tg3: fix race in transmit time stamping.Richard Cochran1-2/+2
Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20fec: fix race in transmit time stamping.Richard Cochran1-2/+2
Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20sgi-xp: fix a use after freeEric Dumazet1-3/+3
Its illegal to dereference skb after dev_kfree_skb(skb) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Robin Holt <holt@sgi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20hp100: fix an skb->len raceEric Dumazet1-2/+2
As soon as skb is given to hardware and spinlock released, TX completion can free skb under us. Therefore, we should update netdev stats before spinlock release. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-20Merge branch 'davem.r8169' of ↵David S. Miller1-4/+6
git://git.kernel.org/pub/scm/linux/kernel/git/romieu/netdev-2.6
2011-06-20netpoll: copy dev name of slaves to struct netpollWANG Cong1-0/+1
Otherwise we will not see the name of the slave dev in error message: [ 388.469446] (null): doesn't support polling, aborting. Signed-off-by: WANG Cong <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-19Merge branch 'hwmon-for-linus' of ↵Linus Torvalds5-8/+6
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging: hwmon: (s3c) Initialize sysfs attributes hwmon: (ibmpex) Initialize sysfs attributes hwmon: (ibmaem) Initialize sysfs attributes hwmon: (asus_atk0110) Consolidate sysfs attribute initialization hwmon: (coretemp) Drop unused struct members
2011-06-18Input: sh_keysc - 8x8 MODE_6 fixMagnus Damm1-1/+1
According to the data sheet for G4, AP4 and AG5 KEYSC MODE_6 is 8x8 keys. Bump up MAXKEYS to 64 too. Signed-off-by: Magnus Damm <damm@opensource.se> Reviewed-by: Simon Horman <horms@verge.net.au> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-06-18Input: omap-keypad - add missing input_sync()Janusz Krzysztofik1-0/+1
Otherwise the updated evdev driver (commit cdda911c34006f1089f3c87b1a1f, "Input: evdev - only signal polls on full packets") no longer works on top of omap-keypad. Tested on Amstrad Delta. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-06-18Input: evdev - try to wake up readers only if we have full packetDmitry Torokhov1-1/+2
We should only wake waiters on the event device when we actually post an EV_SYN/SYN_REPORT to the queue. Otherwise we end up making waiting threads runnable only to go right back to sleep because the device still isn't readable. Reported-by: Jeffrey Brown <jeffbrown@android.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-06-18r8169: check firmware content sooner.Francois Romieu1-19/+44
Firmware checking is only performed when the firmware is loaded instead of each time the driver inits the phy. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2011-06-18r8169: support new firmware format.Hayes Wang1-1/+35
The new firmware format adds versioning as firmware for a specific chipset appears to be subject to change. Current "legacy" format is still supported. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2011-06-18r8169: explicit firmware format check.Francois Romieu1-13/+49
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2011-06-18hwmon: (s3c) Initialize sysfs attributesGuenter Roeck1-0/+2
Initialize dynamically allocated sysfs attributes before device_create_file() call to suppress lockdep_init_map() warning if lockdep debugging is enabled. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org # 2.6.34+
2011-06-18hwmon: (ibmpex) Initialize sysfs attributesGuenter Roeck1-0/+1
Initialize dynamically allocated sysfs attributes before device_create_file() call to suppress lockdep_init_map() warning if lockdep debugging is enabled. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org # 2.6.34+
2011-06-18hwmon: (ibmaem) Initialize sysfs attributesGuenter Roeck1-0/+2
Initialize dynamically allocated sysfs attributes before device_create_file() call to suppress lockdep_init_map() warning if lockdep debugging is enabled. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org # 2.6.34+
2011-06-18hwmon: (asus_atk0110) Consolidate sysfs attribute initializationGuenter Roeck1-4/+1
Call sysfs_attr_init() from atk_init_attribute() to handle sysfs attribute initialization in a single function. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Luca Tettamanti <kronos.it@gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org>
2011-06-18hwmon: (coretemp) Drop unused struct membersJean Delvare1-4/+0
pdev_entry.cpu and pdev_entry.cpu_core_id aren't used anywhere in the driver code so we can drop these struct members. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-06-18drm/nouveau: fix assumption that semaphore dmaobj is valid in x-chan syncBen Skeggs1-34/+25
The DDX modifies DMA_SEMAPHORE on nv50 in order to implement sync-to-vblank, things will go very wrong for cross-channel sync after this. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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