- 04 Mar, 2013 8 commits
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Neal Cardwell authored
We should not update ts_recent and call tcp_rcv_rtt_measure_ts() both before and after going to step5. That wastes CPU and double-counts the receiver-side RTT sample. Signed-off-by:
Neal Cardwell <ncardwell@google.com> Acked-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Silviu-Mihai Popescu authored
This fixes the following sparse warning: net/caif/caif_usb.c:84:16: warning: symbol 'cfusbl_create' was not declared. Should it be static? Signed-off-by:
Silviu-Mihai Popescu <silviupopescu1990@gmail.com> Signed-off-by:
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Cong Wang authored
Cc: David S. Miller <davem@davemloft.net> Cc: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com> Signed-off-by:
Cong Wang <amwang@redhat.com> Signed-off-by:
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Frank Li authored
build error cause by Commit ff43da86 ("NET: FEC: dynamtic check DMA desc buff type") drivers/net/ethernet/freescale/fec.c: In function ‘fec_enet_get_nextdesc’: drivers/net/ethernet/freescale/fec.c:215:18: error: invalid use of undefined type ‘struct bufdesc_ex’ drivers/net/ethernet/freescale/fec.c: In function ‘fec_enet_get_prevdesc’: drivers/net/ethernet/freescale/fec.c:224:18: error: invalid use of undefined type ‘struct bufdesc_ex’ drivers/net/ethernet/freescale/fec.c: In function ‘fec_enet_start_xmit’: drivers/net/ethernet/freescale/fec.c:286:37: error: arithmetic on pointer to an incomplete type drivers/net/ethernet/freescale/fec.c:287:13: error: arithmetic on pointer to an incomplete type drivers/net/ethernet/freescale/fec.c:324:7: error: dereferencing pointer to incomplete type etc.... Signed-off-by:
Frank Li <Frank.Li@freescale.com> Signed-off-by:
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Lorenzo Colitti authored
Setting net.ipv6.conf.<interface>.accept_ra=2 causes the kernel to accept RAs even when forwarding is enabled. However, enabling forwarding purges all default routes on the system, breaking connectivity until the next RA is received. Fix this by not purging default routes on interfaces that have accept_ra=2. Signed-off-by:
Lorenzo Colitti <lorenzo@google.com> Acked-by:
YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by:
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Frank Li authored
up stack ndo_start_xmit already hold lock. fec_enet_start_xmit needn't spin lock. stat_xmit just update fep->cur_tx fec_enet_tx just update fep->dirty_tx Reserve a empty bdb to check full or empty cur_tx == dirty_tx means full cur_tx == dirty_tx +1 means empty So needn't is_full variable. Fix spin lock deadlock ================================= [ INFO: inconsistent lock state ] 3.8.0-rc5+ #107 Not tainted --------------------------------- inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. ptp4l/615 [HC1[1]:SC0[0]:HE0:SE1] takes: (&(&list->lock)->rlock#3){?.-...}, at: [<8042c3c4>] skb_queue_tail+0x20/0x50 {HARDIRQ-ON-W} state was registered at: [<80067250>] mark_lock+0x154/0x4e8 [<800676f4>] mark_irqflags+0x110/0x1a4 [<80069208>] __lock_acquire+0x494/0x9c0 [<80069ce8>] lock_acquire+0x90/0xa4 [<80527ad0>] _raw_spin_lock_bh+0x44/0x54 [<804877e0>] first_packet_length+0x38/0x1f0 [<804879e4>] udp_poll+0x4c/0x5c [<804231f8>] sock_poll+0x24/0x28 [<800d27f0>] do_poll.isra.10+0x120/0x254 [<800d36e4>] do_sys_poll+0x15c/0x1e8 [<800d3828>] sys_poll+0x60/0xc8 [<8000e780>] ret_fast_syscall+0x0/0x3c *** DEADLOCK *** 1 lock held by ptp4l/615: #0: (&(&fep->hw_lock)->rlock){-.-...}, at: [<80355f9c>] fec_enet_tx+0x24/0x268 stack backtrace: Backtrace: [<800121e0>] (dump_backtrace+0x0/0x10c) from [<80516210>] (dump_stack+0x18/0x1c) r6:8063b1fc r5:bf38b2f8 r4:bf38b000 r3:bf38b000 [<805161f8>] (dump_stack+0x0/0x1c) from [<805189d0>] (print_usage_bug.part.34+0x164/0x1a4) [<8051886c>] (print_usage_bug.part.34+0x0/0x1a4) from [<80518a88>] (print_usage_bug+0x78/0x88) r8:80065664 r7:bf38b2f8 r6:00000002 r5:00000000 r4:bf38b000 [<80518a10>] (print_usage_bug+0x0/0x88) from [<80518b58>] (mark_lock_irq+0xc0/0x270) r7:bf38b000 r6:00000002 r5:bf38b2f8 r4:00000000 [<80518a98>] (mark_lock_irq+0x0/0x270) from [<80067270>] (mark_lock+0x174/0x4e8) [<800670fc>] (mark_lock+0x0/0x4e8) from [<80067744>] (mark_irqflags+0x160/0x1a4) [<800675e4>] (mark_irqflags+0x0/0x1a4) from [<80069208>] (__lock_acquire+0x494/0x9c0) r5:00000002 r4:bf38b2f8 [<80068d74>] (__lock_acquire+0x0/0x9c0) from [<80069ce8>] (lock_acquire+0x90/0xa4) [<80069c58>] (lock_acquire+0x0/0xa4) from [<805278d8>] (_raw_spin_lock_irqsave+0x4c/0x60) [<8052788c>] (_raw_spin_lock_irqsave+0x0/0x60) from [<8042c3c4>] (skb_queue_tail+0x20/0x50) r6:bfbb2180 r5:bf1d0190 r4:bf1d0184 [<8042c3a4>] (skb_queue_tail+0x0/0x50) from [<8042c4cc>] (sock_queue_err_skb+0xd8/0x188) r6:00000056 r5:bfbb2180 r4:bf1d0000 r3:00000000 [<8042c3f4>] (sock_queue_err_skb+0x0/0x188) from [<8042d15c>] (skb_tstamp_tx+0x70/0xa0) r6:bf0dddb0 r5:bf1d0000 r4:bfbb2180 r3:00000004 [<8042d0ec>] (skb_tstamp_tx+0x0/0xa0) from [<803561d0>] (fec_enet_tx+0x258/0x268) r6:c089d260 r5:00001c00 r4:bfbd0000 [<80355f78>] (fec_enet_tx+0x0/0x268) from [<803562cc>] (fec_enet_interrupt+0xec/0xf8) [<803561e0>] (fec_enet_interrupt+0x0/0xf8) from [<8007d5b0>] (handle_irq_event_percpu+0x54/0x1a0) [<8007d55c>] (handle_irq_event_percpu+0x0/0x1a0) from [<8007d740>] (handle_irq_event+0x44/0x64) [<8007d6fc>] (handle_irq_event+0x0/0x64) from [<80080690>] (handle_fasteoi_irq+0xc4/0x15c) r6:bf0dc000 r5:bf811290 r4:bf811240 r3:00000000 [<800805cc>] (handle_fasteoi_irq+0x0/0x15c) from [<8007ceec>] (generic_handle_irq+0x28/0x38) r5:807130c8 r4:00000096 [<8007cec4>] (generic_handle_irq+0x0/0x38) from [<8000f16c>] (handle_IRQ+0x54/0xb4) r4:8071d280 r3:00000180 [<8000f118>] (handle_IRQ+0x0/0xb4) from [<80008544>] (gic_handle_irq+0x30/0x64) r8:8000e924 r7:f4000100 r6:bf0ddef8 r5:8071c974 r4:f400010c r3:00000000 [<80008514>] (gic_handle_irq+0x0/0x64) from [<8000e2e4>] (__irq_svc+0x44/0x5c) Exception stack(0xbf0ddef8 to 0xbf0ddf40) Signed-off-by: -
Cong Wang authored
Don't definite its own MAX_KMALLOC_SIZE, use the one defined in mm. Cc: Vlad Yasevich <vyasevich@gmail.com> Cc: Sridhar Samudrala <sri@us.ibm.com> Cc: Neil Horman <nhorman@tuxdriver.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
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Cong Wang authored
Dave Jones reported the following bug: "When fed mangled socket data, rds will trust what userspace gives it, and tries to allocate enormous amounts of memory larger than what kmalloc can satisfy." WARNING: at mm/page_alloc.c:2393 __alloc_pages_nodemask+0xa0d/0xbe0() Hardware name: GA-MA78GM-S2H Modules linked in: vmw_vsock_vmci_transport vmw_vmci vsock fuse bnep dlci bridge 8021q garp stp mrp binfmt_misc l2tp_ppp l2tp_core rfcomm s Pid: 24652, comm: trinity-child2 Not tainted 3.8.0+ #65 Call Trace: [<ffffffff81044155>] warn_slowpath_common+0x75/0xa0 [<ffffffff8104419a>] warn_slowpath_null+0x1a/0x20 [<ffffffff811444ad>] __alloc_pages_nodemask+0xa0d/0xbe0 [<ffffffff8100a196>] ? native_sched_clock+0x26/0x90 [<ffffffff810b2128>] ? trace_hardirqs_off_caller+0x28/0xc0 [<ffffffff810b21cd>] ? trace_hardirqs_off+0xd/0x10 [<ffffffff811861f8>] alloc_pages_current+0xb8/0x180 [<ffffffff8113eaaa>] __get_free_pages+0x2a/0x80 [<ffffffff811934fe>] kmalloc_order_trace+0x3e/0x1a0 [<ffffffff81193955>] __kmalloc+0x2f5/0x3a0 [<ffffffff8104df0c>] ? local_bh_enable_ip+0x7c/0xf0 [<ffffffffa0401ab3>] rds_message_alloc+0x23/0xb0 [rds] [<ffffffffa04043a1>] rds_sendmsg+0x2b1/0x990 [rds] [<ffffffff810b21cd>] ? trace_hardirqs_off+0xd/0x10 [<ffffffff81564620>] sock_sendmsg+0xb0/0xe0 [<ffffffff810b2052>] ? get_lock_stats+0x22/0x70 [<ffffffff810b24be>] ? put_lock_stats.isra.23+0xe/0x40 [<ffffffff81567f30>] sys_sendto+0x130/0x180 [<ffffffff810b872d>] ? trace_hardirqs_on+0xd/0x10 [<ffffffff816c547b>] ? _raw_spin_unlock_irq+0x3b/0x60 [<ffffffff816cd767>] ? sysret_check+0x1b/0x56 [<ffffffff810b8695>] ? trace_hardirqs_on_caller+0x115/0x1a0 [<ffffffff81341d8e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [<ffffffff816cd742>] system_call_fastpath+0x16/0x1b ---[ end trace eed6ae990d018c8b ]--- Reported-by:
Dave Jones <davej@redhat.com> Cc: Dave Jones <davej@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com> Signed-off-by:
Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com> Signed-off-by:
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- 03 Mar, 2013 5 commits
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Cesar Eduardo Barros authored
This driver was removed by commit f84932d8 (drivers/net: delete ISA intel eexpress and eepro i825xx drivers). Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Philip Blundell <philb@gnu.org> Cc: netdev@vger.kernel.org Signed-off-by:
Cesar Eduardo Barros <cesarb@cesarb.net> Signed-off-by:
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Cesar Eduardo Barros authored
This driver was removed by commit 6fcdf4fa (wanrouter: delete now orphaned header content, files/drivers). Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: netdev@vger.kernel.org Signed-off-by:
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Cesar Eduardo Barros authored
This driver was removed by commit 0e245dba (drivers/net: delete the 3Com 3c505/3c507 intel i825xx support). Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Philip Blundell <philb@gnu.org> Cc: netdev@vger.kernel.org Signed-off-by:
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Silviu-Mihai Popescu authored
This fixed the following sparse warning: net/caif/caif_dev.c:121:6: warning: symbol 'caif_flow_cb' was not declared. Should it be static? Signed-off-by:
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Freddy Xin authored
This is a resubmission. Added kfree() in ax88179_get_eeprom to prevent memory leakage. Modified "__le16 rxctl" to "u16 rxctl" in "struct ax88179_data" and removed pointless casts. Removed asix_init and asix_exit functions and added "module_usb_driver(ax88179_178a_driver)". Fixed endianness issue on big endian systems and verified this driver on iBook G4. Removed steps that change net->features in ax88179_set_features function. Added "const" to ethtool_ops structure and fixed the coding style of AX88179_BULKIN_SIZE array. Fixed the issue that the default MTU is not 1500. Added ax88179_change_mtu function and enabled the hardware jumbo frame function to support an MTU higher than 1500. Fixed indentation and empty line coding style errors. The _nopm version usb functions were added to access register in suspend and resume functions. Serveral variables allocted dynamically were removed and replaced by stack variables. ax88179_get_eeprom were modified from asix_get_eeprom in asix_common. This patch adds a driver for ASIX's AX88179 family of USB 3.0/2.0 to gigabit ethernet adapters. It's based on the AX88xxx driver but the usb commands used to access registers for AX88179 are completely different. This driver had been verified on x86 system with AX88179/AX88178A and Sitcomm LN-032 USB dongles. Signed-off-by:
Freddy Xin <freddy@asix.com.tw> Signed-off-by:
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- 01 Mar, 2013 5 commits
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Dan Carpenter authored
This patch doesn't change how the code works because in the current kernel gfp is always GFP_KERNEL. But gfp was obviously intended instead of GFP_KERNEL. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
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Neil Horman authored
I had a report recently of a user trying to use dropwatch to localise some frame loss, and they were getting false positives. Turned out they were using a user space SCTP stack that used raw sockets to grab frames. When we don't have a registered protocol for a given packet, we record it as a drop, even if a raw socket receieves the frame. We should only record the drop in the event a raw socket doesnt exist to receive the frames Tested by the reported successfully Signed-off-by:
William Reich <reich@ulticom.com> Tested-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirelessDavid S. Miller authored
John W. Linville says: ==================== This is another flurry of fixes intended for the 3.9 stream... A mac80211 pull from Johannes: "Seth fixes a stupid bug I introduced into one of his earlier patches, Chun-Yeow fixes mesh forwarding and Felix fixes monitor mode. I myself fixed a small locking issue and, the biggest change here, removed some nl80211 information with which sometimes the per wiphy information was getting too large for the typical 4k-minus-overhead. In my -next tree I have a patch to allow splitting that and add back the information removed now." An iwlwifi pull from Johannes: "I have a fix for a pretty important bug regarding DMA mapping, that could cause the DMA engine to overwrite data we wanted to send to it, so that the next time we send it it would be bad. This particularly affects calibration results. Other than that, three little fixes for the MVM driver." But wait, there's more! Avinash Patil fixes an incorrectly timed delay in mwifiex. Bing Zhao prevents a crash in SD8688 caused by failing to properly set a flag before issuing a command. Felix Fietkau is the big here this time, providing a trio of minor ath9k fixes and correcting the advertised interface combinations for rt2x00 when mesh support is disabled. Finally, Hauke Mehrtens gives us a patch that correctlin initializes a spin lock in the bcma code. Please let me know if there are problems! ==================== Signed-off-by: -
Guillaume Nault authored
The sendmsg() syscall handler for PPPoL2TP doesn't decrease the socket reference counter after successful transmissions. Any successful sendmsg() call from userspace will then increase the reference counter forever, thus preventing the kernel's session and tunnel data from being freed later on. The problem only happens when writing directly on L2TP sockets. PPP sockets attached to L2TP are unaffected as the PPP subsystem uses pppol2tp_xmit() which symmetrically increase/decrease reference counters. This patch adds the missing call to sock_put() before returning from pppol2tp_sendmsg(). Signed-off-by:
Guillaume Nault <g.nault@alphalink.fr> Signed-off-by:
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John W. Linville authored
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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- 28 Feb, 2013 13 commits
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Vlastimil Kosar authored
Phyter KSZ9021 has hardware bug. If asymmetric pause is enabled, then it is necessary to disconnect and then reconnect the ethernet cable to get the phyter working. The solution is to disable the asymmetric pause. Signed-off-by:
Vlastimil Kosar <ikosar@fit.vutbr.cz> Signed-off-by:
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Hauke Mehrtens authored
Do not include the frame check sequence when adding the skb to netif_receive_skb(). This causes problems when this interface was bridged to a wifi ap and a big package should be forwarded from this Ethernet driver through a bride to the wifi client. Signed-off-by:
Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by:
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Petr Malat authored
Fix memory leak in phy_device_free() for the case when phy_device* returned by phy_device_create() is not registered in the system. Bug description: phy_device_create() sets name of kobject using dev_set_name(), which allocates memory using kvasprintf(), but this memory isn't freed if the underlying device isn't registered properly, because kobject_cleanup() is not called in that case. This can happen (and actually is happening on our machines) if phy_device_register(), called by mdiobus_scan(), fails. Patch description: Embedded struct device is initialized in phy_device_create() and it counterpart phy_device_free() just drops one reference to the device, which leads to proper deinitialization including releasing the kobject name memory. Signed-off-by:
Petr Malat <oss@malat.biz> Signed-off-by:
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Yaniv Rosner authored
Fix condition typo for running KR2 work-around though it doesn't have real effect since the typo bits matched by chance. Signed-off-by:
Yaniv Rosner <yanivr@broadcom.com> Signed-off-by:
Eilon Greenstein <eilong@broadcom.com> Signed-off-by:
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Yaniv Rosner authored
Fix KR2 link down problem after reboot when link speed is reconfigured via ethtool. Since 1G/10G support link speed were missing by default, 1G/10G link speed were not advertised. Signed-off-by:
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Yaniv Rosner authored
Fix the "ethtool -p" for boards with BCM84834, by using LED4 of the PHY to toggle the link LED while keeping interrupt disabled to avoid NIG attentions, and at the end restore NIG to previous state. Signed-off-by:
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françois romieu authored
Some hardware start settings implicitely assume an usual 1500 bytes mtu that can't be guaranteed because changes of mtu may be requested both before and after the hardware is started. Reported-by:
Tomi Orava <tomimo@ncircle.nullnet.fi> Signed-off-by:
Francois Romieu <romieu@fr.zoreil.com> Cc: Hayes Wang <hayeswang@realtek.com> Signed-off-by:
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Eric Dumazet authored
TCP prequeue mechanism purpose is to let incoming packets being processed by the thread currently blocked in tcp_recvmsg(), instead of behalf of the softirq handler, to better adapt flow control on receiver host capacity to schedule the consumer. But in typical request/answer workloads, we send request, then block to receive the answer. And before the actual answer, TCP stack receives the ACK packets acknowledging the request. Processing pure ACK on behalf of the thread blocked in tcp_recvmsg() is a waste of resources, as thread has to immediately sleep again because it got no payload. This patch avoids the extra context switches and scheduler overhead. Before patch : a:~# echo 0 >/proc/sys/net/ipv4/tcp_low_latency a:~# perf stat ./super_netperf 300 -t TCP_RR -l 10 -H 7.7.7.84 -- -r 8k,8k 231676 Performance counter stats for './super_netperf 300 -t TCP_RR -l 10 -H 7.7.7.84 -- -r 8k,8k': 116251.501765 task-clock # 11.369 CPUs utilized 5,025,463 context-switches # 0.043 M/sec 1,074,511 CPU-migrations # 0.009 M/sec 216,923 page-faults # 0.002 M/sec 311,636,972,396 cycles # 2.681 GHz 260,507,138,069 stalled-cycles-frontend # 83.59% frontend cycles idle 155,590,092,840 stalled-cycles-backend # 49.93% backend cycles idle 100,101,255,411 instructions # 0.32 insns per cycle # 2.60 stalled cycles per insn 16,535,930,999 branches # 142.243 M/sec 646,483,591 branch-misses # 3.91% of all branches 10.225482774 seconds time elapsed After patch : a:~# echo 0 >/proc/sys/net/ipv4/tcp_low_latency a:~# perf stat ./super_netperf 300 -t TCP_RR -l 10 -H 7.7.7.84 -- -r 8k,8k 233297 Performance counter stats for './super_netperf 300 -t TCP_RR -l 10 -H 7.7.7.84 -- -r 8k,8k': 91084.870855 task-clock # 8.887 CPUs utilized 2,485,916 context-switches # 0.027 M/sec 815,520 CPU-migrations # 0.009 M/sec 216,932 page-faults # 0.002 M/sec 245,195,022,629 cycles # 2.692 GHz 202,635,777,041 stalled-cycles-frontend # 82.64% frontend cycles idle 124,280,372,407 stalled-cycles-backend # 50.69% backend cycles idle 83,457,289,618 instructions # 0.34 insns per cycle # 2.43 stalled cycles per insn 13,431,472,361 branches # 147.461 M/sec 504,470,665 branch-misses # 3.76% of all branches 10.249594448 seconds time elapsed Signed-off-by: -
David S. Miller authored
Lee A. Roberts says: ==================== This series of patches resolves several SCTP association hangs observed during SCTP stress testing. Observable symptoms include communications hangs with data being held in the association reassembly and/or lobby (ordering) queues. Close examination of reassembly/ordering queues may show either duplicated or missing packets. In version #2, corrected build failure in initial version of patch series due to wrong calling sequence for sctp_ulpq_partial_delivery() being inserted in sctp_ulpq_renege(). In version #3, adjusted patch documentation to be less repetitive. ==================== Signed-off-by: -
Lee A. Roberts authored
In sctp_ulpq_tail_data(), use return values 0,1 to indicate whether a complete event (with MSG_EOR set) was delivered. A return value of -ENOMEM continues to indicate an out-of-memory condition was encountered. In sctp_ulpq_retrieve_partial() and sctp_ulpq_retrieve_first(), correct message reassembly logic for SCTP partial delivery. Change logic to ensure that as much data as possible is sent with the initial partial delivery and that following partial deliveries contain all available data. In sctp_ulpq_partial_delivery(), attempt partial delivery only if the data on the head of the reassembly queue is at or before the cumulative TSN ACK point. In sctp_ulpq_renege(), use the modified return values from sctp_ulpq_tail_data() to choose whether to attempt partial delivery or to attempt to drain the reassembly queue as a means to reduce memory pressure. Remove call to sctp_tsnmap_mark(), as this is handled correctly in call to sctp_ulpq_tail_data(). Signed-off-by:
Lee A. Roberts <lee.roberts@hp.com> Acked-by:
Vlad Yasevich <vyasevich@gmail.com> Acked-by:
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Lee A. Roberts authored
In sctp_ulpq_renege_list(), events being reneged from the ordering queue may correspond to multiple TSNs. Identify all affected packets; sum freed space and renege from the tsnmap. Signed-off-by:
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Lee A. Roberts authored
In sctp_ulpq_renege_list(), do not renege packets below the cumulative TSN ACK point. Signed-off-by:
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Lee A. Roberts authored
In sctp_tsnmap_mark(), correct off-by-one error when calculating size value for sctp_tsnmap_grow(). In sctp_tsnmap_grow(), correct off-by-one error when copying and resizing the tsnmap. If max_tsn_seen is in the LSB of the word, this bit can be lost, causing the corresponding packet to be transmitted again and to be entered as a duplicate into the SCTP reassembly/ordering queues. Change parameter name from "gap" (zero-based index) to "size" (one-based) to enhance code readability. Signed-off-by:
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- 27 Feb, 2013 9 commits
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Guenter Roeck authored
Building sctp may fail with: In function ‘copy_from_user’, inlined from ‘sctp_getsockopt_assoc_stats’ at net/sctp/socket.c:5656:20: arch/x86/include/asm/uaccess_32.h:211:26: error: call to ‘copy_from_user_overflow’ declared with attribute error: copy_from_user() buffer size is not provably correct if built with W=1 due to a missing parameter size validation before the call to copy_from_user. Signed-off-by:Guenter Roeck <linux@roeck-us.net> Acked-by:
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Bing Zhao authored
For SD8688, FUNC_INIT command is queued before fw_ready flag is set. This causes the following crash as lbs_thread blocks any command if fw_ready is not set. [ 209.338953] [<c0502248>] (__schedule+0x610/0x764) from [<bf20ae24>] (__lbs_cmd+0xb8/0x130 [libertas]) [ 209.348340] [<bf20ae24>] (__lbs_cmd+0xb8/0x130 [libertas]) from [<bf222474>] (if_sdio_finish_power_on+0xec/0x1b0 [libertas_sdio]) [ 209.360136] [<bf222474>] (if_sdio_finish_power_on+0xec/0x1b0 [libertas_sdio]) from [<bf2226c4>] (if_sdio_power_on+0x18c/0x20c [libertas_sdio]) [ 209.373052] [<bf2226c4>] (if_sdio_power_on+0x18c/0x20c [libertas_sdio]) from [<bf222944>] (if_sdio_probe+0x200/0x31c [libertas_sdio]) [ 209.385316] [<bf222944>] (if_sdio_probe+0x200/0x31c [libertas_sdio]) from [<bf01d820>] (sdio_bus_probe+0x94/0xfc [mmc_core]) [ 209.396748] [<bf01d820>] (sdio_bus_probe+0x94/0xfc [mmc_core]) from [<c02e729c>] (driver_probe_device+0x12c/0x348) [ 209.407214] [<c02e729c>] (driver_probe_device+0x12c/0x348) from [<c02e7530>] (__driver_attach+0x78/0x9c) [ 209.416798] [<c02e7530>] (__driver_attach+0x78/0x9c) from [<c02e5658>] (bus_for_each_dev+0x50/0x88) [ 209.425946] [<c02e5658>] (bus_for_each_dev+0x50/0x88) from [<c02e6810>] (bus_add_driver+0x108/0x268) [ 209.435180] [<c02e6810>] (bus_add_driver+0x108/0x268) from [<c02e782c>] (driver_register+0xa4/0x134) [ 209.444426] [<c02e782c>] (driver_register+0xa4/0x134) from [<bf22601c>] (if_sdio_init_module+0x1c/0x3c [libertas_sdio]) [ 209.455339] [<bf22601c>] (if_sdio_init_module+0x1c/0x3c [libertas_sdio]) from [<c00085b8>] (do_one_initcall+0x98/0x174) [ 209.466236] [<c00085b8>] (do_one_initcall+0x98/0x174) from [<c0076504>] (load_module+0x1c5c/0x1f80) [ 209.475390] [<c0076504>] (load_module+0x1c5c/0x1f80) from [<c007692c>] (sys_init_module+0x104/0x128) [ 209.484632] [<c007692c>] (sys_init_module+0x104/0x128) from [<c0008c40>] (ret_fast_syscall+0x0/0x38) Fix it by setting fw_ready flag prior to queuing FUNC_INIT command. Cc: <stable@vger.kernel.org> # 3.5+ Reported-by:
Lubomir Rintel <lkundrak@v3.sk> Tested-by:
Bing Zhao <bzhao@marvell.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Felix Fietkau authored
If CONFIG_MAC80211_MESH is not set, cfg80211 will now allow advertising interface combinations with NL80211_IFTYPE_MESH_POINT present. Add appropriate ifdefs to avoid running into errors. Cc: stable@vger.kernel.org Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Acked-by:
Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by:
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Avinash Patil authored
Maximum delay for waking up card is 50 ms. Because of typo in counter, this delay goes to 500ms. This patch fixes the bug. Cc: <stable@vger.kernel.org> # 3.2+ Signed-off-by:
Avinash Patil <patila@marvell.com> Signed-off-by:
Amitkumar Karwar <akarwar@marvell.com> Signed-off-by:
Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by:
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Felix Fietkau authored
On many different chips, important aspects of the MAC state are not fully cleared by a warm reset. This can show up as tx/rx hangs, those annoying "DMA failed to stop in 10 ms..." messages or other quirks. On AR933x, the chip can occasionally get stuck in a way that only a driver unload/reload or a reboot would bring it back to life. With this patch, a full reset is issued when bringing the chip out of FULL-SLEEP state (after idle), or if either Rx or Tx was not shut down properly. This makes the DMA related error messages disappear completely in my tests on AR933x, and the chip does not get stuck anymore. Cc: stable@vger.kernel.org Signed-off-by:
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Hauke Mehrtens authored
This spin lock was not initialized. Signed-off-by:
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Felix Fietkau authored
The ath9k commit 2ef16755 (ath9k: fix signal strength reporting issues) fixed an issue where the reported per-frame signal strength reported to mac80211 was being overwritten with an internal average. The same issue is also present in ath9k_htc. In addition to preventing the driver from overwriting the value, this commit also ensures that the internal average (which is used for ANI) only tracks beacons of the AP that we're connected to. Signed-off-by:
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Felix Fietkau authored
RSSI is being stored internally as s8 in several places. The indication of an unset RSSI value, ATH_RSSI_DUMMY_MARKER, was supposed to have been set to 127, but ended up being set to 0x127 because of a code cleanup mistake. This could lead to invalid signal strength values in a few places. Signed-off-by:
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