- 16 Oct, 2014 5 commits
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Matthew Vick authored
Set the flag to fetch the host state before kicking off the service task that reads the host state when bringing the interface back up. Signed-off-by:
Matthew Vick <matthew.vick@intel.com> Tested-by:
Aaron Brown <aaron.f.brown@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Li RongQing authored
pskb_may_pull should be used to check if skb->data has enough space, skb->len can not ensure that. Cc: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
Li RongQing <roy.qing.li@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Li RongQing authored
when netif_rx() is done, the netif_rx handled skb maybe be freed, and should not be used. Signed-off-by:
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Fabian Frederick authored
All functions used struct vport *vport except ovs_vport_find_upcall_portid. This fixes 1 kerneldoc warning Signed-off-by:
Fabian Frederick <fabf@skynet.be> Acked-by:
Pravin B Shelar <pshelar@nicira.com> Signed-off-by:
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Fabian Frederick authored
s/sock/gs Signed-off-by:
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- 15 Oct, 2014 11 commits
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Claudiu Manoil authored
For each Rx frame the eTSEC writes its FCS (Frame Check Sequence) to the Rx buffer. The eTSEC h/w manual states in the "Receive Buffer Descriptor Field Descriptions" table: "Data length is the number of octets written by the eTSEC into this BD's data buffer if L is cleared (the value is equal to MRBLR), or, if L is set, the length of the frame including *CRC*, FCB (if RCTRL[PRSDEP > 00), preamble (if MACCFG2[PreAmRxEn]=1), time stamp (if RCTRL[TS] = 1) and any padding (RCTRL[PAL])." Though the FCS bytes are removed by the driver before passing the skb to the net stack, the Rx buffer size computation does not currently take into account the FCS bytes (4 bytes). Because the Rx buffer size is multiple of 512 bytes, leaving out the FCS is not a problem for the default MTU of 1500, as the Rx buffer size is 1536 in this case. However, for custom MTUs, where the difference between the MTU size and the Rx buffer size is less, this can be a problem as the computed Rx buffer size won't be enough to accomodate the FCS for a received frame that is big enough (close to MTU size). In such case the received frame is considered to be incomplete (L flag not set in the RxBD status) and silently dropped. Note that the driver does not currently support S/G on Rx, so it has to compute its Rx buffer size based on the MTU of the device. Reported-by:
Kristian Otnes <kotnes@cisco.com> Signed-off-by:
Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by:
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Michael S. Tsirkin authored
commit 0b725a2c net: Remove ndo_xmit_flush netdev operation, use signalling instead. added code that looks at skb->xmit_more after the skb has been put in TX VQ. Since some paths process the ring and free the skb immediately, this can cause use after free. Fix by storing xmit_more in a local variable. Cc: David S. Miller <davem@davemloft.net> Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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Nimrod Andy authored
iMX6SX IEEE 1588 module has one hw issue in capturing the ATVR register. The current SW flow is: ENET0->ATCR |= ENET_ATCR_CAPTURE_MASK; ts_counter_ns = ENET0->ATVR; The ATVR value is not expected value that cause LinuxPTP stack cannot be convergent. ENET Block Guide/ Chapter for the iMX6SX (PELE) address the issue: After set ENET_ATCR[Capture], there need some time cycles before the counter value is capture in the register clock domain. The wait-time-cycles is at least 6 clock cycles of the slower clock between the register clock and the 1588 clock. So need something like: ENET0->ATCR |= ENET_ATCR_CAPTURE_MASK; wait(); ts_counter_ns = ENET0->ATVR; For iMX6SX, the 1588 ts_clk is fixed to 25Mhz, register clock is 66Mhz, so the wait-time-cycles must be greater than 240ns (40ns * 6). The patch add 1us delay before cpu read ATVR register. Changes V2: Modify the commit/comments log to describe the issue clearly. Signed-off-by:
Fugang Duan <B38611@freescale.com> Acked-by:
Richard Cochran <richardcochran@gmail.com> Signed-off-by:
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Anish Bhatt authored
Identified by kbuild test robot. csk family is always set to be AF_INET or AF_INET6, so skb will always be initialized to some value but there is no harm in silencing the warning anyways. Signed-off-by:
Anish Bhatt <anish@chelsio.com> Fixes : f42bb57c ('cxgb4i : Fix -Wunused-function warning') Signed-off-by:
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Tom Herbert authored
Add ndo_gso_check which a device can define to indicate whether is is capable of doing GSO on a packet. This funciton would be called from the stack to determine whether software GSO is needed to be done. A driver should populate this function if it advertises GSO types for which there are combinations that it wouldn't be able to handle. For instance a device that performs UDP tunneling might only implement support for transparent Ethernet bridging type of inner packets or might have limitations on lengths of inner headers. Signed-off-by:
Tom Herbert <therbert@google.com> Signed-off-by:
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Giuseppe CAVALLARO authored
this patch is to fix the stmmac data compatibilities for all the SoCs inside the platform file. Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by:
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David S. Miller authored
Anish Bhatt says: ==================== ipv6 and related cleanup for cxgb4/cxgb4i This patch set removes some duplicated/extraneous code from cxgb4i, guards cxgb4 against compilation failure based on ipv6 tristate, make ipv6 related code no longer be enabled by default irrespective of ipv6 tristate and fixes a refcnt issue. -Anish v2 : Provide more detailed commit messages, make subject more concise as recommended by Dave Miller. ==================== Signed-off-by: -
Anish Bhatt authored
There is an extra call to dst_neigh_lookup() leftover in cxgb4i that can cause an unreleased refcnt issue. Remove extraneous call. Signed-off-by:
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Anish Bhatt authored
A bunch of ipv6 related code is left on by default. While this causes no compilation issues, there is no need to have this enabled by default. Guard with an ipv6 check, which also takes care of a -Wunused-function warning. Signed-off-by:
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Anish Bhatt authored
cxgb4 ipv6 does not guard against ipv6 being disabled, or the standard ipv6 module vs inbuilt tri-state issue. This was fixed for cxgb4i & iw_cxgb4 but missed for cxgb4. Signed-off-by:
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Anish Bhatt authored
cxgb4 already handles CLIP updates from a previous changeset for iw_cxgb4, there is no need to have this functionality in cxgb4i. Remove duplicated code Signed-off-by:
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- 14 Oct, 2014 24 commits
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Eric Dumazet authored
TCP Small queues tries to keep number of packets in qdisc as small as possible, and depends on a tasklet to feed following packets at TX completion time. Choice of tasklet was driven by latencies requirements. Then, TCP stack tries to avoid reorders, by locking flows with outstanding packets in qdisc in a given TX queue. What can happen is that many flows get attracted by a low performing TX queue, and cpu servicing TX completion has to feed packets for all of them, making this cpu 100% busy in softirq mode. This became particularly visible with latest skb->xmit_more support Strategy adopted in this patch is to detect when tcp_wfree() is called from ksoftirqd and let the outstanding queue for this flow being drained before feeding additional packets, so that skb->ooo_okay can be set to allow select_queue() to select the optimal queue : Incoming ACKS are normally handled by different cpus, so this patch gives more chance for these cpus to take over the burden of feeding qdisc with future packets. Tested: lpaa23:~# ./super_netperf 1400 --google-pacing-rate 3028000 -H lpaa24 -l 3600 & lpaa23:~# sar -n DEV 1 10 | grep eth1 06:16:18 AM eth1 595448.00 1190564.00 38381.09 1760253.12 0.00 0.00 1.00 06:16:19 AM eth1 594858.00 1189686e.00 38340.76 1758952.72 0.00 0.00 0.00 06:16:20 AM eth1 597017.00 1194019.00 38480.79 1765370.29 0.00 0.00 1.00 06:16:21 AM eth1 595450.00 1190936.00 38380.19 1760805.05 0.00 0.00 0.00 06:16:22 AM eth1 596385.00 1193096.00 38442.56 1763976.29 0.00 0.00 1.00 06:16:23 AM eth1 598155.00 1195978.00 38552.97 1768264.60 0.00 0.00 0.00 06:16:24 AM eth1 594405.00 1188643.00 38312.57 1757414.89 0.00 0.00 1.00 06:16:25 AM eth1 593366.00 1187154.00 38252.16 1755195.83 0.00 0.00 0.00 06:16:26 AM eth1 593188.00 1186118.00 38232.88 1753682.57 0.00 0.00 1.00 06:16:27 AM eth1 596301.00 1192241.00 38440.94 1762733.09 0.00 0.00 0.00 Average: eth1 595457.30 1190843.50 38381.69 1760664.84 0.00 0.00 0.50 lpaa23:~# ./tc -s -d qd sh dev eth1 | grep backlog backlog 7606336b 2513p requeues 167982 backlog 224072b 74p requeues 566 backlog 581376b 192p requeues 5598 backlog 181680b 60p requeues 1070 backlog 5305056b 1753p requeues 110166 // Here, this TX queue is attracting flows backlog 157456b 52p requeues 1758 backlog 672216b 222p requeues 3025 backlog 60560b 20p requeues 24541 backlog 448144b 148p requeues 21258 lpaa23:~# echo 1 >/proc/sys/net/ipv4/tcp_tsq_enable_tcp_wfree_ksoftirqd_detect Immediate jump to full bandwidth, and traffic is properly shard on all tx queues. lpaa23:~# sar -n DEV 1 10 | grep eth1 06:16:46 AM eth1 1397632.00 2795397.00 90081.87 4133031.26 0.00 0.00 1.00 06:16:47 AM eth1 1396874.00 2793614.00 90032.99 4130385.46 0.00 0.00 0.00 06:16:48 AM eth1 1395842.00 2791600.00 89966.46 4127409.67 0.00 0.00 1.00 06:16:49 AM eth1 1395528.00 2791017.00 89946.17 4126551.24 0.00 0.00 0.00 06:16:50 AM eth1 1397891.00 2795716.00 90098.74 4133497.39 0.00 0.00 1.00 06:16:51 AM eth1 1394951.00 2789984.00 89908.96 4125022.51 0.00 0.00 0.00 06:16:52 AM eth1 1394608.00 2789190.00 89886.90 4123851.36 0.00 0.00 1.00 06:16:53 AM eth1 1395314.00 2790653.00 89934.33 4125983.09 0.00 0.00 0.00 06:16:54 AM eth1 1396115.00 2792276.00 89984.25 4128411.21 0.00 0.00 1.00 06:16:55 AM eth1 1396829.00 2793523.00 90030.19 4130250.28 0.00 0.00 0.00 Average: eth1 1396158.40 2792297.00 89987.09 4128439.35 0.00 0.00 0.50 lpaa23:~# tc -s -d qd sh dev eth1 | grep backlog backlog 7900052b 2609p requeues 173287 backlog 878120b 290p requeues 589 backlog 1068884b 354p requeues 5621 backlog 996212b 329p requeues 1088 backlog 984100b 325p requeues 115316 backlog 956848b 316p requeues 1781 backlog 1080996b 357p requeues 3047 backlog 975016b 322p requeues 24571 backlog 990156b 327p requeues 21274 (All 8 TX queues get a fair share of the traffic) Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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David S. Miller authored
Rajesh Borundia says: ==================== qlcnic: Bug fixes This series fixes following issues. * We were programming maximum number of arguments supported by adapter instead of required in a command. * Destroy tx command requires three arguments instead of two. Please apply these patches to net. ==================== Signed-off-by: -
Rajesh Borundia authored
o Number of arguments taken by destroy tx command is three instead of two. Signed-off-by:
Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by:
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Rajesh Borundia authored
o Initially we were programming maximum number of arguments. Instead we should program number of arguments required in a command. o Maximum number of arguments for 82xx adapter is four. Fix it for GET_ESWITCH_STATS command. Signed-off-by:
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Mark Rustad authored
Resolve "logical 'and' applied to non-boolean constant" warnings" that appear in W=2 builds by adding !! to a bit test. Signed-off-by:
Mark Rustad <mark.d.rustad@intel.com> Signed-off-by:
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David S. Miller authored
Unlike normal kfree() it is never right to call sock_kfree_s() with a NULL pointer, because sock_kfree_s() also has the side effect of discharging the memory from the sockets quota. Signed-off-by: -
Cong Wang authored
It is okay to free a NULL pointer but not okay to mischarge the socket optmem accounting. Compile test only. Reported-by: rucsoftsec@gmail.com Cc: Chien Yen <chien.yen@oracle.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by:
Cong Wang <cwang@twopensource.com> Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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Hariprasad Shenai authored
Use t4_fw_upgrade instead of t4_load_fw to write firmware into FLASH, since t4_load_fw doesn't co-ordinate with the firmware and the adapter can get hosed enough to require a power cycle of the system. Based on original work by Casey Leedom <leedom@chelsio.com> Signed-off-by:
Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by:
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David S. Miller authored
Giuseppe Cavallaro says: ==================== stmmac: review and fix the dwmac-sti glue-logic This patch is to review the whole glue logic adopted on STi SoCs that was bugged. In the old glue-logic there was a lot of confusion when setup the retiming especially for STiD127 where, for example, the bits 6 and 7 (in the GMAC control register) have a different meaning of what is used for STiH4xx SoCs. So we cannot adopt the same glue for all these SoCs. Moreover, GiGa on STiD127 didn't work and, for all the SoCs, the RGMII couldn't run when the speed was 10Mbps (because the clock was not properly managed). Note that the phy clock needs to be provided by the platform as well as documented in the related binding file (updated as consequence). The old code supported too many configurations never adopted and validated. This made the code very complex to maintain and debug in case of issues. The patch simplifies all the configurations as commented in the tables inside the file and obviously it has been tested on all the boards based on the SoCs mentioned. With this patch, the dwmac-sti is also ready to support new configurations that will be available on next SoC generations. ==================== Signed-off-by: -
Giuseppe CAVALLARO authored
This patch is to review the whole glue logic adopted on STi SoCs that was bugged. In the old glue-logic there was a lot of confusion when setup the retiming especially for STiD127 where, for example, the bits 6 and 7 (in the GMAC control register) have a different meaning of what is used for STiH4xx SoCs. So we cannot adopt the same glue for all these SoCs. Moreover, GiGa on STiD127 didn't work and, for all the SoCs, the RGMII couldn't run when the speed was 10Mbps (because the clock was not properly managed). Note that the phy clock needs to be provided by the platform as well as documented in the related binding file (updated as consequence). The old code supported too many configurations never adopted and validated. This made the code very complex to maintain and debug in case of issues. The patch simplifies all the configurations as commented in the tables inside the file and obviously it has been tested on all the boards based on the SoCs mentioned. With this patch, the dwmac-sti is also ready to support new configurations that will be available on next SoC generations. Signed-off-by:
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Giuseppe CAVALLARO authored
This adds the missing compatibility to the STiH407 SoC. Signed-off-by:
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Giuseppe CAVALLARO authored
On several STi platforms: e.g. stihxxx-b2120 an Ethernet switch is embedded and connected to the stmmac via RGMII mode. So this is managed by using the FIXED_PHY. In that case, the support in the platform needs to be fixed to allow the stmmac to dialog with the switch via fixed-link by using phy_bus_name property. Signed-off-by:
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Guenter Roeck authored
tag_protocol is now an enum, so drivers have to check against it. Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Acked-by:
Florian Fainelli <f.fainelli@gmail.com> Acked-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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David S. Miller authored
Iyappan Subramanian says: ==================== Adding SGMII based 1GbE basic support to APM X-Gene SoC ethernet driver. v2: Address comments from v1 * Split the patchset into two, the first one being preparatory patch * Added link_state function pointer to the xgene_mac_ops structure * Added xgene_indirect_ctl structure for indirect read/write arguments v1: * Initial version ==================== Signed-off-by: -
Iyappan Subramanian authored
Signed-off-by:
Iyappan Subramanian <isubramanian@apm.com> Signed-off-by:
Keyur Chudgar <kchudgar@apm.com> Signed-off-by:
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Iyappan Subramanian authored
Signed-off-by:
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Iyappan Subramanian authored
- Added link_state function pointer to the xgene__mac_ops structure - Moved ring manager (pdata->rm) assignment to xgene_enet_setup_ops - Removed unused variable (pdata->phy_addr) and macro (FULL_DUPLEX) Signed-off-by:
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Iyappan Subramanian authored
Signed-off-by:
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Alexei Starovoitov authored
userspace programs that use eBPF instruction macros need to include two files: uapi/linux/filter.h and uapi/linux/bpf.h Move common macro definitions that are shared between classic BPF and eBPF into uapi/linux/bpf_common.h, so that user app can include only one bpf.h file Cc: Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
Alexei Starovoitov <ast@plumgrid.com> Signed-off-by:
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Fabian Frederick authored
parent cfusbl was used instead of first structure member 'layer' Suggested-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Fabian Frederick authored
Let MM subsystem display out of memory messages. Signed-off-by:
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Fabian Frederick authored
Also add blank line after declaration Signed-off-by:
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Mugunthan V N authored
remove all the child devices from the system to make sure that re-insert of cpsw module doesn't fail on child device populated by of_platform_populate(). Signed-off-by:
Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by:
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Mugunthan V N authored
remove spinlock in cpdma_desc_pool_destroy() as there is no active cpdma channel and iounmap should be called without auquiring lock. root@dra7xx-evm:~# modprobe -r ti_cpsw [ 50.539743] [ 50.541312] ====================================================== [ 50.547796] [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ] [ 50.554826] 3.14.19-02124-g95c5b7b #308 Not tainted [ 50.559939] ------------------------------------------------------ [ 50.566416] modprobe/1921 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: [ 50.573347] (vmap_area_lock){+.+...}, at: [<c01127fc>] find_vmap_area+0x10/0x6c [ 50.581132] [ 50.581132] and this task is already holding: [ 50.587249] (&(&pool->lock)->rlock#2){..-...}, at: [<bf017c74>] cpdma_ctlr_destroy+0x5c/0x114 [davinci_cpdma] [ 50.597766] which would create a new lock dependency: [ 50.603048] (&(&pool->lock)->rlock#2){..-...} -> (vmap_area_lock){+.+...} [ 50.610296] [ 50.610296] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 50.618601] (&(&pool->lock)->rlock#2){..-...} ... which became SOFTIRQ-irq-safe at: [ 50.626829] [<c06585a4>] _raw_spin_lock_irqsave+0x38/0x4c [ 50.632677] [<bf01773c>] cpdma_desc_free.constprop.7+0x28/0x58 [davinci_cpdma] [ 50.640437] [<bf0177e8>] __cpdma_chan_free+0x7c/0xa8 [davinci_cpdma] [ 50.647289] [<bf017908>] __cpdma_chan_process+0xf4/0x134 [davinci_cpdma] [ 50.654512] [<bf017984>] cpdma_chan_process+0x3c/0x54 [davinci_cpdma] [ 50.661455] [<bf0277e8>] cpsw_poll+0x14/0xa8 [ti_cpsw] [ 50.667038] [<c05844f4>] net_rx_action+0xc0/0x1e8 [ 50.672150] [<c0048234>] __do_softirq+0xcc/0x304 [ 50.677183] [<c004873c>] irq_exit+0xa8/0xfc [ 50.681751] [<c000eeac>] handle_IRQ+0x50/0xb0 [ 50.686513] [<c0008638>] gic_handle_irq+0x28/0x5c [ 50.691628] [<c06590a4>] __irq_svc+0x44/0x5c [ 50.696289] [<c0658ab4>] _raw_spin_unlock_irqrestore+0x34/0x44 [ 50.702591] [<c065a9c4>] do_page_fault.part.9+0x144/0x3c4 [ 50.708433] [<c065acb8>] do_page_fault+0x74/0x84 [ 50.713453] [<c00083dc>] do_DataAbort+0x34/0x98 [ 50.718391] [<c065923c>] __dabt_usr+0x3c/0x40 [ 50.723148] [ 50.723148] to a SOFTIRQ-irq-unsafe lock: [ 50.728893] (vmap_area_lock){+.+...} ... which became SOFTIRQ-irq-unsafe at: [ 50.736476] ... [<c06584e8>] _raw_spin_lock+0x28/0x38 [ 50.741876] [<c011376c>] alloc_vmap_area.isra.28+0xb8/0x300 [ 50.747908] [<c0113a44>] __get_vm_area_node.isra.29+0x90/0x134 [ 50.754210] [<c011486c>] get_vm_area_caller+0x3c/0x48 [ 50.759692] [<c0114be0>] vmap+0x40/0x78 [ 50.763900] [<c09442f0>] check_writebuffer_bugs+0x54/0x1a0 [ 50.769835] [<c093eac0>] start_kernel+0x320/0x388 [ 50.774952] [<80008074>] 0x80008074 [ 50.778793] [ 50.778793] other info that might help us debug this: [ 50.778793] [ 50.787181] Possible interrupt unsafe locking scenario: [ 50.787181] [ 50.794295] CPU0 CPU1 [ 50.799042] ---- ---- [ 50.803785] lock(vmap_area_lock); [ 50.807446] local_irq_disable(); [ 50.813652] lock(&(&pool->lock)->rlock#2); [ 50.820782] lock(vmap_area_lock); [ 50.827086] <Interrupt> [ 50.829823] lock(&(&pool->lock)->rlock#2); [ 50.834490] [ 50.834490] *** DEADLOCK *** [ 50.834490] [ 50.840695] 4 locks held by modprobe/1921: [ 50.844981] #0: (&__lockdep_no_validate__){......}, at: [<c03e53e8>] driver_detach+0x44/0xb8 [ 50.854038] #1: (&__lockdep_no_validate__){......}, at: [<c03e53f4>] driver_detach+0x50/0xb8 [ 50.863102] #2: (&(&ctlr->lock)->rlock){......}, at: [<bf017c34>] cpdma_ctlr_destroy+0x1c/0x114 [davinci_cpdma] [ 50.873890] #3: (&(&pool->lock)->rlock#2){..-...}, at: [<bf017c74>] cpdma_ctlr_destroy+0x5c/0x114 [davinci_cpdma] [ 50.884871] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 50.892827] -> (&(&pool->lock)->rlock#2){..-...} ops: 167 { [ 50.898703] IN-SOFTIRQ-W at: [ 50.901995] [<c06585a4>] _raw_spin_lock_irqsave+0x38/0x4c [ 50.909476] [<bf01773c>] cpdma_desc_free.constprop.7+0x28/0x58 [davinci_cpdma] [ 50.918878] [<bf0177e8>] __cpdma_chan_free+0x7c/0xa8 [davinci_cpdma] [ 50.927366] [<bf017908>] __cpdma_chan_process+0xf4/0x134 [davinci_cpdma] [ 50.936218] [<bf017984>] cpdma_chan_process+0x3c/0x54 [davinci_cpdma] [ 50.944794] [<bf0277e8>] cpsw_poll+0x14/0xa8 [ti_cpsw] [ 50.952009] [<c05844f4>] net_rx_action+0xc0/0x1e8 [ 50.958765] [<c0048234>] __do_softirq+0xcc/0x304 [ 50.965432] [<c004873c>] irq_exit+0xa8/0xfc [ 50.971635] [<c000eeac>] handle_IRQ+0x50/0xb0 [ 50.978035] [<c0008638>] gic_handle_irq+0x28/0x5c [ 50.984788] [<c06590a4>] __irq_svc+0x44/0x5c [ 50.991085] [<c0658ab4>] _raw_spin_unlock_irqrestore+0x34/0x44 [ 50.999023] [<c065a9c4>] do_page_fault.part.9+0x144/0x3c4 [ 51.006510] [<c065acb8>] do_page_fault+0x74/0x84 [ 51.013171] [<c00083dc>] do_DataAbort+0x34/0x98 [ 51.019738] [<c065923c>] __dabt_usr+0x3c/0x40 [ 51.026129] INITIAL USE at: [ 51.029335] [<c06585a4>] _raw_spin_lock_irqsave+0x38/0x4c [ 51.036729] [<bf017d78>] cpdma_chan_submit+0x4c/0x2f0 [davinci_cpdma] [ 51.045225] [<bf02863c>] cpsw_ndo_open+0x378/0x6bc [ti_cpsw] [ 51.052897] [<c058747c>] __dev_open+0x9c/0x104 [ 51.059287] [<c05876ec>] __dev_change_flags+0x88/0x160 [ 51.066420] [<c05877e4>] dev_change_flags+0x18/0x48 [ 51.073270] [<c05ed51c>] devinet_ioctl+0x61c/0x6e0 [ 51.080029] [<c056ee54>] sock_ioctl+0x5c/0x298 [ 51.086418] [<c01350a4>] do_vfs_ioctl+0x78/0x61c [ 51.092993] [<c01356ac>] SyS_ioctl+0x64/0x74 [ 51.099200] [<c000e580>] ret_fast_syscall+0x0/0x48 [ 51.105956] } [ 51.107696] ... key at: [<bf019000>] __key.21312+0x0/0xfffff650 [davinci_cpdma] [ 51.115912] ... acquired at: [ 51.119019] [<c00899ac>] lock_acquire+0x9c/0x104 [ 51.124138] [<c06584e8>] _raw_spin_lock+0x28/0x38 [ 51.129341] [<c01127fc>] find_vmap_area+0x10/0x6c [ 51.134547] [<c0114960>] remove_vm_area+0x8/0x6c [ 51.139659] [<c0114a7c>] __vunmap+0x20/0xf8 [ 51.144318] [<c001c350>] __arm_iounmap+0x10/0x18 [ 51.149440] [<bf017d08>] cpdma_ctlr_destroy+0xf0/0x114 [davinci_cpdma] [ 51.156560] [<bf026294>] cpsw_remove+0x48/0x8c [ti_cpsw] [ 51.162407] [<c03e62c8>] platform_drv_remove+0x18/0x1c [ 51.168063] [<c03e4c44>] __device_release_driver+0x70/0xc8 [ 51.174094] [<c03e5458>] driver_detach+0xb4/0xb8 [ 51.179212] [<c03e4a6c>] bus_remove_driver+0x4c/0x90 [ 51.184693] [<c00b024c>] SyS_delete_module+0x10c/0x198 [ 51.190355] [<c000e580>] ret_fast_syscall+0x0/0x48 [ 51.195661] [ 51.197217] the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock: [ 51.205986] -> (vmap_area_lock){+.+...} ops: 520 { [ 51.211032] HARDIRQ-ON-W at: [ 51.214321] [<c06584e8>] _raw_spin_lock+0x28/0x38 [ 51.221090] [<c011376c>] alloc_vmap_area.isra.28+0xb8/0x300 [ 51.228750] [<c0113a44>] __get_vm_area_node.isra.29+0x90/0x134 [ 51.236690] [<c011486c>] get_vm_area_caller+0x3c/0x48 [ 51.243811] [<c0114be0>] vmap+0x40/0x78 [ 51.249654] [<c09442f0>] check_writebuffer_bugs+0x54/0x1a0 [ 51.257239] [<c093eac0>] start_kernel+0x320/0x388 [ 51.263994] [<80008074>] 0x80008074 [ 51.269474] SOFTIRQ-ON-W at: [ 51.272769] [<c06584e8>] _raw_spin_lock+0x28/0x38 [ 51.279525] [<c011376c>] alloc_vmap_area.isra.28+0xb8/0x300 [ 51.287190] [<c0113a44>] __get_vm_area_node.isra.29+0x90/0x134 [ 51.295126] [<c011486c>] get_vm_area_caller+0x3c/0x48 [ 51.302245] [<c0114be0>] vmap+0x40/0x78 [ 51.308094] [<c09442f0>] check_writebuffer_bugs+0x54/0x1a0 [ 51.315669] [<c093eac0>] start_kernel+0x320/0x388 [ 51.322423] [<80008074>] 0x80008074 [ 51.327906] INITIAL USE at: [ 51.331112] [<c06584e8>] _raw_spin_lock+0x28/0x38 [ 51.337775] [<c011376c>] alloc_vmap_area.isra.28+0xb8/0x300 [ 51.345352] [<c0113a44>] __get_vm_area_node.isra.29+0x90/0x134 [ 51.353197] [<c011486c>] get_vm_area_caller+0x3c/0x48 [ 51.360224] [<c0114be0>] vmap+0x40/0x78 [ 51.365977] [<c09442f0>] check_writebuffer_bugs+0x54/0x1a0 [ 51.373464] [<c093eac0>] start_kernel+0x320/0x388 [ 51.380131] [<80008074>] 0x80008074 [ 51.385517] } [ 51.387260] ... key at: [<c0a66948>] vmap_area_lock+0x10/0x20 [ 51.393841] ... acquired at: [ 51.396945] [<c00899ac>] lock_acquire+0x9c/0x104 [ 51.402060] [<c06584e8>] _raw_spin_lock+0x28/0x38 [ 51.407266] [<c01127fc>] find_vmap_area+0x10/0x6c [ 51.412478] [<c0114960>] remove_vm_area+0x8/0x6c [ 51.417592] [<c0114a7c>] __vunmap+0x20/0xf8 [ 51.422252] [<c001c350>] __arm_iounmap+0x10/0x18 [ 51.427369] [<bf017d08>] cpdma_ctlr_destroy+0xf0/0x114 [davinci_cpdma] [ 51.434487] [<bf026294>] cpsw_remove+0x48/0x8c [ti_cpsw] [ 51.440336] [<c03e62c8>] platform_drv_remove+0x18/0x1c [ 51.446000] [<c03e4c44>] __device_release_driver+0x70/0xc8 [ 51.452031] [<c03e5458>] driver_detach+0xb4/0xb8 [ 51.457147] [<c03e4a6c>] bus_remove_driver+0x4c/0x90 [ 51.462628] [<c00b024c>] SyS_delete_module+0x10c/0x198 [ 51.468289] [<c000e580>] ret_fast_syscall+0x0/0x48 [ 51.473584] [ 51.475140] [ 51.475140] stack backtrace: [ 51.479703] CPU: 0 PID: 1921 Comm: modprobe Not tainted 3.14.19-02124-g95c5b7b #308 [ 51.487744] [<c0016090>] (unwind_backtrace) from [<c0012060>] (show_stack+0x10/0x14) [ 51.495865] [<c0012060>] (show_stack) from [<c0652a20>] (dump_stack+0x78/0x94) [ 51.503444] [<c0652a20>] (dump_stack) from [<c0086f18>] (check_usage+0x408/0x594) [ 51.511293] [<c0086f18>] (check_usage) from [<c00870f8>] (check_irq_usage+0x54/0xb0) [ 51.519416] [<c00870f8>] (check_irq_usage) from [<c0088724>] (__lock_acquire+0xe54/0x1b90) [ 51.528077] [<c0088724>] (__lock_acquire) from [<c00899ac>] (lock_acquire+0x9c/0x104) [ 51.536291] [<c00899ac>] (lock_acquire) from [<c06584e8>] (_raw_spin_lock+0x28/0x38) [ 51.544417] [<c06584e8>] (_raw_spin_lock) from [<c01127fc>] (find_vmap_area+0x10/0x6c) [ 51.552726] [<c01127fc>] (find_vmap_area) from [<c0114960>] (remove_vm_area+0x8/0x6c) [ 51.560935] [<c0114960>] (remove_vm_area) from [<c0114a7c>] (__vunmap+0x20/0xf8) [ 51.568693] [<c0114a7c>] (__vunmap) from [<c001c350>] (__arm_iounmap+0x10/0x18) [ 51.576362] [<c001c350>] (__arm_iounmap) from [<bf017d08>] (cpdma_ctlr_destroy+0xf0/0x114 [davinci_cpdma]) [ 51.586494] [<bf017d08>] (cpdma_ctlr_destroy [davinci_cpdma]) from [<bf026294>] (cpsw_remove+0x48/0x8c [ti_cpsw]) [ 51.597261] [<bf026294>] (cpsw_remove [ti_cpsw]) from [<c03e62c8>] (platform_drv_remove+0x18/0x1c) [ 51.606659] [<c03e62c8>] (platform_drv_remove) from [<c03e4c44>] (__device_release_driver+0x70/0xc8) [ 51.616237] [<c03e4c44>] (__device_release_driver) from [<c03e5458>] (driver_detach+0xb4/0xb8) [ 51.625264] [<c03e5458>] (driver_detach) from [<c03e4a6c>] (bus_remove_driver+0x4c/0x90) [ 51.633749] [<c03e4a6c>] (bus_remove_driver) from [<c00b024c>] (SyS_delete_module+0x10c/0x198) [ 51.642781] [<c00b024c>] (SyS_delete_module) from [<c000e580>] (ret_fast_syscall+0x0/0x48) Signed-off-by:
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