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2015-03-01staging: wlan-ng: remove unused variableAya Mahfouz
This patch removes variables that were simply used to store the return value of a function call before returning it. The issue was detected and resolved using the following coccinelle script: @@ identifier len,f; @@ -int len; ... when != len when strict -len = +return f(...); -return len; Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01staging: wlan-ng: remove unused variableAya Mahfouz
This patch removes a variable that was simply used to store the return value of a function call before returning it. The issue was detected and resolved using the following coccinelle script: @@ identifier len,f; @@ -int len; ... when != len when strict -len = +return f(...); -return len; Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: rtl8723au: Remove white space before semicolonYeliz Taneroglu
drivers/staging/rtl8723au/core/rtw_cmd.c warning: space prohibited before semicolon Signed-off-by: Yeliz Taneroglu <yeliztaneroglu@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01staging: rtl8188eu: Remove memset.Navya Sri Nizamkari
The memory area set by the call to memset is immediately overwritten by the subsequent call to memcpy. Hence, remove that redundant memset. Signed-off-by: Navya Sri Nizamkari <navyasri.tech@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01staging: rtl8188eu: Add blank line after declarationsNavya Sri Nizamkari
This patch removes the following checkpatch.pl warning: WARNING: Missing a blank line after declarations Signed-off-by: Navya Sri Nizamkari <navyasri.tech@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01staging: rtl8188eu: Compress two statements into one.Navya Sri Nizamkari
This patch removes the use of a variable used only for returning a value. The following coccinelle script was used to discover it: @@ expression ret; identifier f; @@ -ret = +return f(...); -return ret; It also fixes the checkpatch.pl warning about line being over 80 characters, in the lines where changes were made. Signed-off-by: Navya Sri Nizamkari <navyasri.tech@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: rtl8188eu: Remove unused variableVatika Harlalka
Remove unused variable assignment for is2t and assign sim_bitmap at declaration to make the code more compact. Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01staging: rtl8188eu: os_dep: remove unused variableAya Mahfouz
This patch removes a variable that was simply used to store the return value of a function call before returning it. The issue was detected and resolved using the following coccinelle script: @@ identifier len,f; @@ -int len; ... when != len when strict -len = +return f(...); -return len; Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: rtl8188eu: Move variable assignmentVatika Harlalka
Variable path_on is assigned explicitly in the if branch and so its assignment outside can be moved to the else branch. Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01ARM: OMAP4+: PRM: fix omap4 version of prm_save_and_clear_irqenTero Kristo
This was incorrectly reading the irq status registers during the save and clear, instead of the irq enable. This worked because there is only one user for the prcm interrupts currently, namely the io-chain. Whenever the function was called, an io-chain interrupt was both pending and enabled. Signed-off-by: Tero Kristo <t-kristo@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-03-01ARM: OMAP2+: hwmod: fix deassert hardreset clkdm usecountingTero Kristo
Deasserting hardreset increases the usecount for the hwmod parent clockdomain always, however usecount is only decreased at end in certain error cases. This causes software supervised clockdomains to remain always on, preventing idle. Fixed by always releasing the hwmods clockdomain parent when exiting the function. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Carlos Hernandez <ceh@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-03-01Staging: rtl8188eu: Remove braces from single statement blockVatika Harlalka
Remove braces from single statement if condition to follow kernel coding convention. Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: lustre: lustre: osc: Insert missing space before '='Hatice ERTÜRK
Insert missing space before '=' to improve readability. This Error found with checkpatch.pl Signed-off-by: Hatice ERTURK <haticeerturk27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: lustre: lustre: osc: Insert missing space before '|'Hatice ERTÜRK
Insert missing space before '|' to improve readability. This Error found with checkpatch.pl Signed-off-by: Hatice ERTURK <haticeerturk27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: lustre: lustre: mgc: Delete the excess white spaceHatice ERTÜRK
This patch fixes these error messages found by checkpatch.pl: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Hatice ERTURK <haticeerturk27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01staging: lustre: Use kasprintf.Navya Sri Nizamkari
This patch uses kasprintf as it combines kmalloc and sprintf, and takes care of the size calculation itself. The semantic patch that makes this change is as follows: // <smpl> @@ expression a,flag; expression list args; statement S; @@ a = - \(kmalloc\|kzalloc\)(...,flag) + kasprintf(flag,args) <... when != a if (a == NULL || ...) S ...> - sprintf(a,args); Signed-off-by: Navya Sri Nizamkari <navyasri.tech@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: dgnc: Replace printk() with dev_dbg()Cristina Opriceana
This patch replaces printk() with dev_dbg() in order to avoid the suggestion of using a more specific function while printing debug information. Warning found by checkpatch.pl. Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com> Reviewed-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: dgnc: Replace printk with dev_errCristina Opriceana
This patch fixes the following checkpatch.pl warning: WARNING: Prefer [subsystem eg: netdev]_err over printk(KERN_ERR, ...). Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01staging: vt6655: remove unused variableAya Mahfouz
This patch removes a variable that was simply used to store the return value of a function call before returning it. The issue was detected and resolved using the following coccinelle script: @@ identifier len,f; @@ -int len; ... when != len when strict -len = +return f(...); -return len; Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: vt6655: Fix do not use C99 // commentsYeliz Taneroglu
Fix checkpatch.pl issues with do not use C99 // comments in key.h Signed-off-by: Yeliz Taneroglu <yeliztaneroglu@gmail.com> Reviewed-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: i2o: Fix quoted string split across linesDilek Uzulmez
This patch fixes "quoted string split across lines warning" warning in exec-osm.c Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Staging: speakup: Remove 'extern' keywords from .h prototypesKatie Dunne
Addresses checkpatch.pl check: CHECK: Extern prototypes should be avoided in .h files Removes the 'extern' keyword from function prototypes Signed-off-by: Katie Dunne <kdunne@mail.ccsf.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "A CR4-shadow 32-bit init fix, plus two typo fixes" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Init per-cpu shadow copy of CR4 on 32-bit CPUs too x86/platform/intel-mid: Fix trivial printk message typo in intel_mid_arch_setup() x86/cpu/intel: Fix trivial typo in intel_tlb_table[]
2015-03-01Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Ingo Molnar: "Three clockevents/clocksource driver fixes" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource: pxa: Fix section mismatch clocksource: mtk: Fix race conditions in probe code clockevents: asm9260: Fix compilation error with sparc/sparc64 allyesconfig
2015-03-01Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Two kprobes fixes and a handful of tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tools: Make sparc64 arch point to sparc perf symbols: Define EM_AARCH64 for older OSes perf top: Fix SIGBUS on sparc64 perf tools: Fix probing for PERF_FLAG_FD_CLOEXEC flag perf tools: Fix pthread_attr_setaffinity_np build error perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check perf bench: Fix order of arguments to memcpy_alloc_mem kprobes/x86: Check for invalid ftrace location in __recover_probed_insn() kprobes/x86: Use 5-byte NOP when the code might be modified by ftrace
2015-03-01Merge branch 'locking-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fix from Ingo Molnar: "An rtmutex deadlock path fixlet" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/rtmutex: Set state back to running on error
2015-03-01Merge branch 'bcmgenet_systemport_stats'David S. Miller
Florian Fainelli says: ==================== net: bcmgenet and systemport statistics fixes This two patches fix a similar problem in the GENET and SYSTEMPORT drivers for software maintained statistics used to track DMA mapping and SKB re-allocation failures. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01net: systemport: fix software maintained statisticsFlorian Fainelli
Commit 60b4ea1781fd ("net: systemport: log RX buffer allocation and RX/TX DMA failures") added a few software maintained statistics using BCM_SYSPORT_STAT_MIB_RX and BCM_SYSPORT_STAT_MIB_TX. These statistics are read from the hardware MIB counters, such that bcm_sysport_update_mib_counters() was trying to read from a non-existing MIB offset for these counters. Fix this by introducing a special type: BCM_SYSPORT_STAT_SOFT, similar to BCM_SYSPORT_STAT_NETDEV, such that bcm_sysport_get_ethtool_stats will read from the software mib. Fixes: 60b4ea1781fd ("net: systemport: log RX buffer allocation and RX/TX DMA failures") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01net: bcmgenet: fix software maintained statisticsFlorian Fainelli
Commit 44c8bc3ce39f ("net: bcmgenet: log RX buffer allocation and RX/TX dma failures") added a few software maintained statistics using BCMGENET_STAT_MIB_RX and BCMGENET_STAT_MIB_TX. These statistics are read from the hardware MIB counters, such that bcmgenet_update_mib_counters() was trying to read from a non-existing MIB offset for these counters. Fix this by introducing a special type: BCMGENET_STAT_SOFT, similar to BCMGENET_STAT_NETDEV, such that bcmgenet_get_ethtool_stats will read from the software mib. Fixes: 44c8bc3ce39f ("net: bcmgenet: log RX buffer allocation and RX/TX dma failures") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01rxrpc: don't multiply with HZ twiceFlorian Westphal
rxrpc_resend_timeout has an initial value of 4 * HZ; use it as-is. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01rxrpc: terminate retrans loop when sending of skb failsFlorian Westphal
Typo, 'stop' is never set to true. Seems intent is to not attempt to retransmit more packets after sendmsg returns an error. This change is based on code inspection only. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01net/hsr: Fix NULL pointer dereference and refcnt bugs when deleting a HSR ↵Arvid Brodin
interface. To repeat: $ sudo ip link del hsr0 BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 IP: [<ffffffff8187f495>] hsr_del_port+0x15/0xa0 etc... Bug description: As part of the hsr master device destruction, hsr_del_port() is called for each of the hsr ports. At each such call, the master device is updated regarding features and mtu. When the master device is freed before the slave interfaces, master will be NULL in hsr_del_port(), which led to a NULL pointer dereference. Additionally, dev_put() was called on the master device itself in hsr_del_port(), causing a refcnt error. A third bug in the same code path was that the rtnl lock was not taken before hsr_del_port() was called as part of hsr_dev_destroy(). The reporter (Nicolas Dichtel) also said: "hsr_netdev_notify() supposes that the port will always be available when the notification is for an hsr interface. It's wrong. For example, netdev_wait_allrefs() may resend NETDEV_UNREGISTER.". As a precaution against this, a check for port == NULL was added in hsr_dev_notify(). Reported-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Fixes: 51f3c605318b056a ("net/hsr: Move slave init to hsr_slave.c.") Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01net: pasemi: Use setup_timer and mod_timerVaishali Thakkar
Use timer API functions setup_timer and mod_timer instead of structure assignments as they are standard way to set the timer and to update the expire field of an active timer respectively. This is done using Coccinelle and semantic patch used for this is as follows: // <smpl> @@ expression x,y,z,a,b; @@ -init_timer (&x); +setup_timer (&x, y, z); +mod_timer (&a, b); -x.function = y; -x.data = z; -x.expires = b; -add_timer(&a); // </smpl> Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01net: stmmac: Use setup_timer and mod_timerVaishali Thakkar
Use timer API functions setup_timer and mod_timer instead of structure assignments as they are standard way to set the timer and to update the expire field of an active timer respectively. This is done using Coccinelle and semantic patch used for this is as follows: // <smpl> @@ expression x,y,z,a,b; @@ -init_timer (&x); +setup_timer (&x, y, z); +mod_timer (&a, b); -x.function = y; -x.data = z; -x.expires = b; -add_timer(&a); // </smpl> Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01net: 8390: axnet_cs: Use setup_timer and mod_timerVaishali Thakkar
Use timer API functions setup_timer and mod_timer instead of structure assignments as they are standard way to set the timer and to update the expire field of an active timer respectively. This is done using Coccinelle and semantic patch used for this is as follows: // <smpl> @@ expression x,y,z,a,b; @@ -init_timer (&x); +setup_timer (&x, y, z); +mod_timer (&a, b); -x.function = y; -x.data = z; -x.expires = b; -add_timer(&a); // </smpl> Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01net: 8390: pcnet_cs: Use setup_timer and mod_timerVaishali Thakkar
Use timer API functions setup_timer and mod_timer instead of structure assignments as they are standard way to set the timer and to update the expire field of an active timer respectively. This is done using Coccinelle and semantic patch used for this is as follows: // <smpl> @@ expression x,y,z,a,b; @@ -init_timer (&x); +setup_timer (&x, y, z); +mod_timer (&a, b); -x.function = y; -x.data = z; -x.expires = b; -add_timer(&a); // </smpl> Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01net: smc91c92_cs: Use setup_timer and mod_timerVaishali Thakkar
Use timer API functions setup_timer and mod_timer instead of structure assignments as they are standard way to set the timer and to update the expire field of an active timer respectively. This is done using Coccinelle and semantic patch used for this is as follows: // <smpl> @@ expression x,y,z,a,b; @@ -init_timer (&x); +setup_timer (&x, y, z); +mod_timer (&a, b); -x.function = y; -x.data = z; -x.expires = b; -add_timer(&a); // </smpl> Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01netxen_nic: Fix trivial typos in commentsYannick Guerrini
Change 'mutliple' to 'multiple' Change 'Firmare' to 'Firmware' Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01qlcnic: Fix trivial typo in commentYannick Guerrini
Change 'Firmare' to 'Firmware' Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01net: ti: cpsw: add hibernation callbacksGrygorii Strashko
Setting a dev_pm_ops suspend/resume pair but not a set of hibernation functions means those pm functions will not be called upon hibernation. Fix this by using SIMPLE_DEV_PM_OPS, which appropriately assigns the suspend and hibernation handlers and move cpsw_suspend/resume calbacks under CONFIG_PM_SLEEP to avoid build warnings. Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01net: davinci_mdio: add hibernation callbacksGrygorii Strashko
Setting a dev_pm_ops suspend_late/resume_early pair but not a set of hibernation functions means those pm functions will not be called upon hibernation. Fix this by using SET_LATE_SYSTEM_SLEEP_PM_OPS, which appropriately assigns the suspend and hibernation handlers and move davinci_mdio_x callbacks under CONFIG_PM_SLEEP to avoid build warnings. Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01Merge tag 'perf-urgent-for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - pthread_attr_setaffinity_np() feature detection build fixes (Adrian Hunter, Josh Boyer) - Fix probing for PERF_FLAG_FD_CLOEXEC flag (Adrian Hunter) - Fix order of arguments to memcpy_alloc_mem in 'perf bench' (Bruce Merry) - Sparc64 and Aarch64 build and segfault fixes (David Ahern) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-03-01ALSA: dice: fix wrong offsets for Dice interfaceTakashi Sakamoto
For received packet stream, the offset of 'RX_SEQ_START' locates after the offset of 'RX_NUMBER_MIDI', although current macro and proc output includes wrong offsets. Fortunately, this bug doesn't affect streaming functionality because these macro is not used. This commit fixes these wrong macro and outputs. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-01locking/rtmutex: Set state back to running on errorSebastian Andrzej Siewior
The "usual" path is: - rt_mutex_slowlock() - set_current_state() - task_blocks_on_rt_mutex() (ret 0) - __rt_mutex_slowlock() - sleep or not but do return with __set_current_state(TASK_RUNNING) - back to caller. In the early error case where task_blocks_on_rt_mutex() return -EDEADLK we never change the task's state back to RUNNING. I assume this is intended. Without this change after ww_mutex using rt_mutex the selftest passes but later I get plenty of: | bad: scheduling from the idle thread! backtraces. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Mike Galbraith <umgwanakikbuti@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: afffc6c1805d ("locking/rtmutex: Optimize setting task running after being blocked") Link: http://lkml.kernel.org/r/1425056229-22326-4-git-send-email-bigeasy@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-03-01net: do not use rcu in rtnl_dump_ifinfo()Eric Dumazet
We did a failed attempt in the past to only use rcu in rtnl dump operations (commit e67f88dd12f6 "net: dont hold rtnl mutex during netlink dump callbacks") Now that dumps are holding RTNL anyway, there is no need to also use rcu locking, as it forbids any scheduling ability, like GFP_KERNEL allocations that controlling path should use instead of GFP_ATOMIC whenever possible. This should fix following splat Cong Wang reported : [ INFO: suspicious RCU usage. ] 3.19.0+ #805 Tainted: G W include/linux/rcupdate.h:538 Illegal context switch in RCU read-side critical section! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 2 locks held by ip/771: #0: (rtnl_mutex){+.+.+.}, at: [<ffffffff8182b8f4>] netlink_dump+0x21/0x26c #1: (rcu_read_lock){......}, at: [<ffffffff817d785b>] rcu_read_lock+0x0/0x6e stack backtrace: CPU: 3 PID: 771 Comm: ip Tainted: G W 3.19.0+ #805 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 0000000000000001 ffff8800d51e7718 ffffffff81a27457 0000000029e729e6 ffff8800d6108000 ffff8800d51e7748 ffffffff810b539b ffffffff820013dd 00000000000001c8 0000000000000000 ffff8800d7448088 ffff8800d51e7758 Call Trace: [<ffffffff81a27457>] dump_stack+0x4c/0x65 [<ffffffff810b539b>] lockdep_rcu_suspicious+0x107/0x110 [<ffffffff8109796f>] rcu_preempt_sleep_check+0x45/0x47 [<ffffffff8109e457>] ___might_sleep+0x1d/0x1cb [<ffffffff8109e67d>] __might_sleep+0x78/0x80 [<ffffffff814b9b1f>] idr_alloc+0x45/0xd1 [<ffffffff810cb7ab>] ? rcu_read_lock_held+0x3b/0x3d [<ffffffff814b9f9d>] ? idr_for_each+0x53/0x101 [<ffffffff817c1383>] alloc_netid+0x61/0x69 [<ffffffff817c14c3>] __peernet2id+0x79/0x8d [<ffffffff817c1ab7>] peernet2id+0x13/0x1f [<ffffffff817d8673>] rtnl_fill_ifinfo+0xa8d/0xc20 [<ffffffff810b17d9>] ? __lock_is_held+0x39/0x52 [<ffffffff817d894f>] rtnl_dump_ifinfo+0x149/0x213 [<ffffffff8182b9c2>] netlink_dump+0xef/0x26c [<ffffffff8182bcba>] netlink_recvmsg+0x17b/0x2c5 [<ffffffff817b0adc>] __sock_recvmsg+0x4e/0x59 [<ffffffff817b1b40>] sock_recvmsg+0x3f/0x51 [<ffffffff817b1f9a>] ___sys_recvmsg+0xf6/0x1d9 [<ffffffff8115dc67>] ? handle_pte_fault+0x6e1/0xd3d [<ffffffff8100a3a0>] ? native_sched_clock+0x35/0x37 [<ffffffff8109f45b>] ? sched_clock_local+0x12/0x72 [<ffffffff8109f6ac>] ? sched_clock_cpu+0x9e/0xb7 [<ffffffff810cb7ab>] ? rcu_read_lock_held+0x3b/0x3d [<ffffffff811abde8>] ? __fcheck_files+0x4c/0x58 [<ffffffff811ac556>] ? __fget_light+0x2d/0x52 [<ffffffff817b376f>] __sys_recvmsg+0x42/0x60 [<ffffffff817b379f>] SyS_recvmsg+0x12/0x1c Signed-off-by: Eric Dumazet <edumazet@google.com> Fixes: 0c7aecd4bde4b7302 ("netns: add rtnl cmd to add and get peer netns ids") Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com> Reported-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-01sh_eth: Fix lost MAC address on kexecGeert Uytterhoeven
Commit 740c7f31c094703c ("sh_eth: Ensure DMA engines are stopped before freeing buffers") added a call to sh_eth_reset() to the sh_eth_set_ringparam() and sh_eth_close() paths. However, setting the software reset bit(s) in the EDMR register resets the MAC Address Registers to zero. Hence after kexec, the new kernel doesn't detect a valid MAC address and assigns a random MAC address, breaking DHCP. Set the MAC address again after the reset in sh_eth_dev_exit() to fix this. Tested on r8a7740/armadillo (GETHER) and r8a7791/koelsch (FAST_RCAR). Fixes: 740c7f31c094703c ("sh_eth: Ensure DMA engines are stopped before freeing buffers") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-28net: bcmgenet: fix throughtput regressionJaedon Shin
This patch adds bcmgenet_tx_poll for the tx_rings. This can reduce the interrupt load and send xmit in network stack on time. This also separated for the completion of tx_ring16 from bcmgenet_poll. The bcmgenet_tx_reclaim of tx_ring[{0,1,2,3}] operative by an interrupt is to be not more than a certain number TxBDs. It is caused by too slowly reclaiming the transmitted skb. Therefore, performance degradation of xmit after 605ad7f ("tcp: refine TSO autosizing"). Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-28macvtap: make sure neighbour code can push ethernet headerEric Dumazet
Brian reported crashes using IPv6 traffic with macvtap/veth combo. I tracked the crashes in neigh_hh_output() -> memcpy(skb->data - HH_DATA_MOD, hh->hh_data, HH_DATA_MOD); Neighbour code assumes headroom to push Ethernet header is at least 16 bytes. It appears macvtap has only 14 bytes available on arches where NET_IP_ALIGN is 0 (like x86) Effect is a corruption of 2 bytes right before skb->head, and possible crashes if accessing non existing memory. This fix should also increase IPv4 performance, as paranoid code in ip_finish_output2() wont have to call skb_realloc_headroom() Reported-by: Brian Rak <brak@vultr.com> Tested-by: Brian Rak <brak@vultr.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-28Merge tag 'mac80211-for-davem-2015-02-27' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== A few patches have accumulated, among them the fix for Linus's four-way-handshake problem. The others are various small fixes for problems all over, nothing really stands out. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-28cpuidle / sleep: Do sanity checks in cpuidle_enter_freeze() tooRafael J. Wysocki
Modify cpuidle_enter_freeze() to do the sanity checks done by cpuidle_select() to avoid crashing the suspend-to-idle code path in case something is missing. Fixes: 381063133246 (PM / sleep: Re-implement suspend-to-idle handling) Original-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
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