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* powerpc/pseries: Read common partition via pstoreAruna Balakrishnaiah2013-06-20
| | | | | | | | | | This patch exploits pstore subsystem to read details of common partition in NVRAM to a separate file in /dev/pstore. For instance, common partition details will be stored in a file named [common-nvram-6]. Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com> Reviewed-by: Jim Keniston <jkenisto@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Read of-config partition via pstoreAruna Balakrishnaiah2013-06-20
| | | | | | | | | | | This patch set exploits the pstore subsystem to read details of of-config partition in NVRAM to a separate file in /dev/pstore. For instance, of-config partition details will be stored in a file named [of-nvram-5]. Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com> Reviewed-by: Jim Keniston <jkenisto@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Read rtas partition via pstoreAruna Balakrishnaiah2013-06-20
| | | | | | | | | | This patch set exploits the pstore subsystem to read details of rtas partition in NVRAM to a separate file in /dev/pstore. For instance, rtas details will be stored in a file named [rtas-nvram-4]. Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com> Reviewed-by: Jim Keniston <jkenisto@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* mm/THP: don't use HPAGE_SHIFT in transparent hugepage codeAneesh Kumar K.V2013-06-20
| | | | | | | | | | | | | | | | | For architectures like powerpc that support multiple explicit hugepage sizes, HPAGE_SHIFT indicate the default explicit hugepage shift. For THP to work the hugepage size should be same as PMD_SIZE. So use PMD_SHIFT directly. So move the define outside CONFIG_TRANSPARENT_HUGEPAGE #ifdef because we want to use these defines in generic code with if (pmd_trans_huge()) conditional. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'rcu/urgent' of ↵Linus Torvalds2013-06-13
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull RCU fixes from Paul McKenney: "I must confess that this past merge window was not RCU's best showing. This series contains three more fixes for RCU regressions: 1. A fix to __DECLARE_TRACE_RCU() that causes it to act as an interrupt from idle rather than as a task switch from idle. This change is needed due to the recent use of _rcuidle() tracepoints that can be invoked from interrupt handlers as well as from idle. Without this fix, invoking _rcuidle() tracepoints from interrupt handlers results in splats and (more seriously) confusion on RCU's part as to whether a given CPU is idle or not. This confusion can in turn result in too-short grace periods and therefore random memory corruption. 2. A fix to a subtle deadlock that could result due to RCU doing a wakeup while holding one of its rcu_node structure's locks. Although the probability of occurrence is low, it really does happen. The fix, courtesy of Steven Rostedt, uses irq_work_queue() to avoid the deadlock. 3. A fix to a silent deadlock (invisible to lockdep) due to the interaction of timeouts posted by RCU debug code enabled by CONFIG_PROVE_RCU_DELAY=y, grace-period initialization, and CPU hotplug operations. This will not occur in production kernels, but really does occur in randconfig testing. Diagnosis courtesy of Steven Rostedt" * 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: rcu: Fix deadlock with CPU hotplug, RCU GP init, and timer migration rcu: Don't call wakeup() with rcu_node structure ->lock held trace: Allow idle-safe tracepoints to be called from irq
| * trace: Allow idle-safe tracepoints to be called from irqPaul E. McKenney2013-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __DECLARE_TRACE_RCU() currently creates an _rcuidle() tracepoint which may safely be invoked from what RCU considers to be an idle CPU. However, these _rcuidle() tracepoints may -not- be invoked from the handler of an irq taken from idle, because rcu_idle_enter() zeroes RCU's nesting-level counter, so that the rcu_irq_exit() returning to idle will trigger a WARN_ON_ONCE(). This commit therefore substitutes rcu_irq_enter() for rcu_idle_exit() and rcu_irq_exit() for rcu_idle_enter() in order to make the _rcuidle() tracepoints usable from irq handlers as well as from process context. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2013-06-12
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking update from David Miller: 1) Fix dump iterator in nfnl_acct_dump() and ctnl_timeout_dump() to dump all objects properly, from Pablo Neira Ayuso. 2) xt_TCPMSS must use the default MSS of 536 when no MSS TCP option is present. Fix from Phil Oester. 3) qdisc_get_rtab() looks for an existing matching rate table and uses that instead of creating a new one. However, it's key matching is incomplete, it fails to check to make sure the ->data[] array is identical too. Fix from Eric Dumazet. 4) ip_vs_dest_entry isn't fully initialized before copying back to userspace, fix from Dan Carpenter. 5) Fix ubuf reference counting regression in vhost_net, from Jason Wang. 6) When sock_diag dumps a socket filter back to userspace, we have to translate it out of the kernel's internal representation first. From Nicolas Dichtel. 7) davinci_mdio holds a spinlock while calling pm_runtime, which sleeps. Fix from Sebastian Siewior. 8) Timeout check in sh_eth_check_reset is off by one, from Sergei Shtylyov. 9) If sctp socket init fails, we can NULL deref during cleanup. Fix from Daniel Borkmann. 10) netlink_mmap() does not propagate errors properly, from Patrick McHardy. 11) Disable powersave and use minstrel by default in ath9k. From Sujith Manoharan. 12) Fix a regression in that SOCK_ZEROCOPY is not set on tuntap sockets which prevents vhost from being able to use zerocopy. From Jason Wang. 13) Fix race between port lookup and TX path in team driver, from Jiri Pirko. 14) Missing length checks in bluetooth L2CAP packet parsing, from Johan Hedberg. 15) rtlwifi fails to connect to networking using any encryption method other than WPA2. Fix from Larry Finger. 16) Fix iwlegacy build due to incorrect CONFIG_* ifdeffing for power management stuff. From Yijing Wang. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (35 commits) b43: stop format string leaking into error msgs ath9k: Use minstrel rate control by default Revert "ath9k_hw: Update rx gain initval to improve rx sensitivity" ath9k: Disable PowerSave by default net: wireless: iwlegacy: fix build error for il_pm_ops rtlwifi: Fix a false leak indication for PCI devices wl12xx/wl18xx: scan all 5ghz channels wl12xx: increase minimum singlerole firmware version required wl12xx: fix minimum required firmware version for wl127x multirole rtlwifi: rtl8192cu: Fix problem in connecting to WEP or WPA(1) networks mwifiex: debugfs: Fix out of bounds array access Bluetooth: Fix mgmt handling of power on failures Bluetooth: Fix missing length checks for L2CAP signalling PDUs Bluetooth: btmrvl: support Marvell Bluetooth device SD8897 Bluetooth: Fix checks for LE support on LE-only controllers team: fix checks in team_get_first_port_txable_rcu() team: move add to port list before port enablement team: check return value of team_get_port_by_index_rcu() for NULL tuntap: set SOCK_ZEROCOPY flag during open netlink: fix error propagation in netlink_mmap() ...
| * | team: fix checks in team_get_first_port_txable_rcu()Jiri Pirko2013-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | should be checked if "cur" is txable, not "port". Introduced by commit 6e88e1357c "team: use function team_port_txable() for determing enabled and up port" Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sock_diag: fix filter code sent to userspaceNicolas Dichtel2013-06-11
| | | | | | | | | | | | | | | | | | | | | Filters need to be translated to real BPF code for userland, like SO_GETFILTER. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds2013-06-12
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull block layer fixes from Jens Axboe: "Outside of bcache (which really isn't super big), these are all few-liners. There are a few important fixes in here: - Fix blk pm sleeping when holding the queue lock - A small collection of bcache fixes that have been done and tested since bcache was included in this merge window. - A fix for a raid5 regression introduced with the bio changes. - Two important fixes for mtip32xx, fixing an oops and potential data corruption (or hang) due to wrong bio iteration on stacked devices." * 'for-linus' of git://git.kernel.dk/linux-block: scatterlist: sg_set_buf() argument must be in linear mapping raid5: Initialize bi_vcnt pktcdvd: silence static checker warning block: remove refs to XD disks from documentation blkpm: avoid sleep when holding queue lock mtip32xx: Correctly handle bio->bi_idx != 0 conditions mtip32xx: Fix NULL pointer dereference during module unload bcache: Fix error handling in init code bcache: clarify free/available/unused space bcache: drop "select CLOSURES" bcache: Fix incompatible pointer type warning
| * | | scatterlist: sg_set_buf() argument must be in linear mappingRusty Russell2013-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a check behind CONFIG_DEBUG_SG to verify this. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* | | | include/linux/math64.h: add div64_ul()Alex Shi2013-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is div64_long() to handle the s64/long division, but no mocro do u64/ul division. It is necessary in some scenarios, so add this function. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Alex Shi <alex.shi@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | mm: migration: add migrate_entry_wait_huge()Naoya Horiguchi2013-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we have a page fault for the address which is backed by a hugepage under migration, the kernel can't wait correctly and do busy looping on hugepage fault until the migration finishes. As a result, users who try to kick hugepage migration (via soft offlining, for example) occasionally experience long delay or soft lockup. This is because pte_offset_map_lock() can't get a correct migration entry or a correct page table lock for hugepage. This patch introduces migration_entry_wait_huge() to solve this. Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: Rik van Riel <riel@redhat.com> Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Reviewed-by: Michal Hocko <mhocko@suse.cz> Cc: Mel Gorman <mgorman@suse.de> Cc: Andi Kleen <andi@firstfloor.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: <stable@vger.kernel.org> [2.6.35+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | kmsg: honor dmesg_restrict sysctl on /dev/kmsgKees Cook2013-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dmesg_restrict sysctl currently covers the syslog method for access dmesg, however /dev/kmsg isn't covered by the same protections. Most people haven't noticed because util-linux dmesg(1) defaults to using the syslog method for access in older versions. With util-linux dmesg(1) defaults to reading directly from /dev/kmsg. To fix /dev/kmsg, let's compare the existing interfaces and what they allow: - /proc/kmsg allows: - open (SYSLOG_ACTION_OPEN) if CAP_SYSLOG since it uses a destructive single-reader interface (SYSLOG_ACTION_READ). - everything, after an open. - syslog syscall allows: - anything, if CAP_SYSLOG. - SYSLOG_ACTION_READ_ALL and SYSLOG_ACTION_SIZE_BUFFER, if dmesg_restrict==0. - nothing else (EPERM). The use-cases were: - dmesg(1) needs to do non-destructive SYSLOG_ACTION_READ_ALLs. - sysklog(1) needs to open /proc/kmsg, drop privs, and still issue the destructive SYSLOG_ACTION_READs. AIUI, dmesg(1) is moving to /dev/kmsg, and systemd-journald doesn't clear the ring buffer. Based on the comments in devkmsg_llseek, it sounds like actions besides reading aren't going to be supported by /dev/kmsg (i.e. SYSLOG_ACTION_CLEAR), so we have a strict subset of the non-destructive syslog syscall actions. To this end, move the check as Josh had done, but also rename the constants to reflect their new uses (SYSLOG_FROM_CALL becomes SYSLOG_FROM_READER, and SYSLOG_FROM_FILE becomes SYSLOG_FROM_PROC). SYSLOG_FROM_READER allows non-destructive actions, and SYSLOG_FROM_PROC allows destructive actions after a capabilities-constrained SYSLOG_ACTION_OPEN check. - /dev/kmsg allows: - open if CAP_SYSLOG or dmesg_restrict==0 - reading/polling, after open Addresses https://bugzilla.redhat.com/show_bug.cgi?id=903192 [akpm@linux-foundation.org: use pr_warn_once()] Signed-off-by: Kees Cook <keescook@chromium.org> Reported-by: Christian Kujau <lists@nerdbynature.de> Tested-by: Josh Boyer <jwboyer@redhat.com> Cc: Kay Sievers <kay@vrfy.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | CPU hotplug: provide a generic helper to disable/enable CPU hotplugSrivatsa S. Bhat2013-06-12
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are instances in the kernel where we would like to disable CPU hotplug (from sysfs) during some important operation. Today the freezer code depends on this and the code to do it was kinda tailor-made for that. Restructure the code and make it generic enough to be useful for other usecases too. Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Robin Holt <holt@sgi.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge tag 'trace-fixes-v3.10-rc3-v3' of ↵Linus Torvalds2013-06-07
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "This contains 4 fixes. The first two fix the case where full RCU debugging is enabled, enabling function tracing causes a live lock of the system. This is due to the added debug checks in rcu_dereference_raw() that is used by the function tracer. These checks are also traced by the function tracer as well as cause enough overhead to the function tracer to slow down the system enough that the time to finish an interrupt can take longer than when the next interrupt is triggered, causing a live lock from the timer interrupt. Talking this over with Paul McKenney, we came up with a fix that adds a new rcu_dereference_raw_notrace() that does not perform these added checks, and let the function tracer use that. The third commit fixes a failed compile when branch tracing is enabled, due to the conversion of the trace_test_buffer() selftest that the branch trace wasn't converted for. The forth patch fixes a bug caught by the RCU lockdep code where a rcu_read_lock() is performed when rcu is disabled (either going to or from idle, or user space). This happened on the irqsoff tracer as it calls task_uid(). The fix here was to use current_uid() when possible that doesn't use rcu locking. Which luckily, is always used when irqsoff calls this code." * tag 'trace-fixes-v3.10-rc3-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Use current_uid() for critical time tracing tracing: Fix bad parameter passed in branch selftest ftrace: Use the rcu _notrace variants for rcu_dereference_raw() and friends rcu: Add _notrace variation of rcu_dereference_raw() and hlist_for_each_entry_rcu()
| * | rcu: Add _notrace variation of rcu_dereference_raw() and ↵Steven Rostedt2013-05-28
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hlist_for_each_entry_rcu() As rcu_dereference_raw() under RCU debug config options can add quite a bit of checks, and that tracing uses rcu_dereference_raw(), these checks happen with the function tracer. The function tracer also happens to trace these debug checks too. This added overhead can livelock the system. Add a new interface to RCU for both rcu_dereference_raw_notrace() as well as hlist_for_each_entry_rcu_notrace() as the hlist iterator uses the rcu_dereference_raw() as well, and is used a bit with the function tracer. Link: http://lkml.kernel.org/r/20130528184209.304356745@goodmis.org Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
* | net: Unbreak compat_sys_{send,recv}msgAndy Lutomirski2013-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I broke them in this commit: commit 1be374a0518a288147c6a7398792583200a67261 Author: Andy Lutomirski <luto@amacapital.net> Date: Wed May 22 14:07:44 2013 -0700 net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg This patch adds __sys_sendmsg and __sys_sendmsg as common helpers that accept MSG_CMSG_COMPAT and blocks MSG_CMSG_COMPAT at the syscall entrypoints. It also reverts some unnecessary checks in sys_socketcall. Apparently I was suffering from underscore blindness the first time around. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Tested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2013-06-05
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Fix timeouts with direct mode authentication in mac80211, from Stanislaw Gruszka. 2) Aggregation sessions can deadlock in ath9k, from Felix Fietkau. 3) Netfilter's xt_addrtype doesn't work with ipv6 due to route lookups creating undesirable cache entries, from Florian Westphal. 4) Fix netfilter's ipt_ULOG from generating non-NULL terminated strings. 5) Fix netdev transmit queue crashes in mac80211, from Johannes Berg. 6) Fix copy and paste error in 802.11 stack that broke reporting of 64-bit station tx statistics, from Felix Fietkau. 7) When qlge_probe fails, it leaks the netdev. Fix from Wei Yongjun. 8) SKB control block (where we store the IP options information, amongst other things) must be cleared properly otherwise ICMP sending can crash for IP tunnels. Fix from Eric Dumazet. 9) Verification of Energy Efficient Ether support was coded wrongly, the test was inversed. Fix from Giuseppe CAVALLARO. 10) TCP handles redirects improperly because the wrong flow key is used for the route lookup. From Michal Kubecek. 11) Don't interpret MSG_CMSG_COMPAT from userspace, fix from Andy Lutomirski. 12) The new AF_VSOCK was missing from the lockdep string table, fix from Federico Vaga. 13) be2net doesn't handle checksumming of IP fragments properly, from Somnath Kotur. 14) Fix several bugs in the device address list code that lead to crashes and other misbehaviors. From Jay Vosburgh. 15) Fix ipv6 segmentation handling of fragmented GRE tunnel traffic, from Pravin B Shalr. 16) Fix usage of stale policies in IPSEC layer, from Paul Moore. 17) Fix team driver dump of ports when there are a large number of them, from Jiri Pirko. 18) Fix softlockups in UDP ipv4 socket lookup causes by and error in the hlist_nulls_for_each_entry_rcu() macro. From Eric Dumazet. 19) Fix several regressions added by the high rate accuracy changes to the htb packet scheduler. From Eric Dumazet. 20) Fix DMA'ing onto the stack in esd_usb2 and peak_usb CAN drivers, from Olivier Sobrie and Marc Kleine-Budde. 21) Fix unremovable network devices due to missing route pointer installation in the per-device ipv6 address list entries. From Gao feng. 22) Apply the tg3 5719 DMA workaround on 5720 chips as well, otherwise we get stalls. From Nithin Sujir. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (68 commits) net_sched: htb: do not mix 1ns and 64ns time units net: fix sk_buff head without data area tg3: Add read dma workaround for 5720 net: ethernet: xilinx_emaclite: set protocol selector bits when writing ANAR bnx2x: Fix bridged GSO for 57710/57711 chips net: fec: add fallback to random MAC address bnx2x: fix TCP offload for tunneling ipv4 over ipv6 ipv6: assign rt6_info to inet6_ifaddr in init_loopback net/mlx4_core: Keep VF assigned MAC in the PF admin table net/mlx4_en: Handle unassigned VF MAC address correctly net/mlx4_core: Return -EPROBE_DEFER when a VF is probed before PF is sufficiently initialized net/mlx4_en: Fix adaptive moderation cq update net: can: peak_usb: Do not do dma on the stack net: can: esd_usb2: Do not do dma on the stack net: can: kvaser_usb: fix reception on "USBcan Pro" and "USBcan R" type hardware. net_sched: restore "overhead xxx" handling net: force a reload of first item in hlist_nulls_for_each_entry_rcu hyperv: Fix vlan_proto setting in netvsc_recv_callback() team: fix port list dump for big number of ports list: introduce list_first_entry_or_null ...
| * | net: force a reload of first item in hlist_nulls_for_each_entry_rcuEric Dumazet2013-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Roman Gushchin discovered that udp4_lib_lookup2() was not reloading first item in the rcu protected list, in case the loop was restarted. This produced soft lockups as in https://lkml.org/lkml/2013/4/16/37 rcu_dereference(X)/ACCESS_ONCE(X) seem to not work as intended if X is ptr->field : In some cases, gcc caches the value or ptr->field in a register. Use a barrier() to disallow such caching, as documented in Documentation/atomic_ops.txt line 114 Thanks a lot to Roman for providing analysis and numerous patches. Diagnosed-by: Roman Gushchin <klamm@yandex-team.ru> Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Boris Zhmurov <zhmurov@yandex-team.ru> Signed-off-by: Roman Gushchin <klamm@yandex-team.ru> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | list: introduce list_first_entry_or_nullJiri Pirko2013-05-31
| | | | | | | | | | | | | | | | | | | | | non-rcu variant of list_first_or_null_rcu Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | udp6: Fix udp fragmentation for tunnel traffic.Pravin B Shelar2013-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | udp6 over GRE tunnel does not work after to GRE tso changes. GRE tso handler passes inner packet but keeps track of outer header start in SKB_GSO_CB(skb)->mac_offset. udp6 fragment need to take care of outer header, which start at the mac_offset, while adding fragment header. This bug is introduced by commit 68c3316311 (GRE: Add TCP segmentation offload for GRE). Reported-by: Dmitry Kravkov <dkravkov@gmail.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Tested-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller2013-05-30
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pablo Neira Ayuso says: ==================== The following patchset contains Netfilter/IPVS fixes for 3.10-rc3, they are: * fix xt_addrtype with IPv6, from Florian Westphal. This required a new hook for IPv6 functions in the netfilter core to avoid hard dependencies with the ipv6 subsystem when this match is only used for IPv4. * fix connection reuse case in IPVS. Currently, if an reused connection are directed to the same server. If that server is down, those connection would fail. Therefore, clear the connection and choose a new server among the available ones. * fix possible non-nul terminated string sent to user-space if ipt_ULOG is used as the default netfilter logging stub, from Chen Gang. * fix mark logging of IPv6 packets in xt_LOG, from Michal Kubecek. This bug has been there since 2.6.26. * Fix breakage ip_vs_sh due to incorrect structure layout for RCU, from Jan Beulich. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | netfilter: add nf_ipv6_ops hook to fix xt_addrtype with IPv6Florian Westphal2013-05-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Quoting https://bugzilla.netfilter.org/show_bug.cgi?id=812: [ ip6tables -m addrtype ] When I tried to use in the nat/PREROUTING it messes up the routing cache even if the rule didn't matched at all. [..] If I remove the --limit-iface-in from the non-working scenario, so just use the -m addrtype --dst-type LOCAL it works! This happens when LOCAL type matching is requested with --limit-iface-in, and the default ipv6 route is via the interface the packet we test arrived on. Because xt_addrtype uses ip6_route_output, the ipv6 routing implementation creates an unwanted cached entry, and the packet won't make it to the real/expected destination. Silently ignoring --limit-iface-in makes the routing work but it breaks rule matching (--dst-type LOCAL with limit-iface-in is supposed to only match if the dst address is configured on the incoming interface; without --limit-iface-in it will match if the address is reachable via lo). The test should call ipv6_chk_addr() instead. However, this would add a link-time dependency on ipv6. There are two possible solutions: 1) Revert the commit that moved ipt_addrtype to xt_addrtype, and put ipv6 specific code into ip6t_addrtype. 2) add new "nf_ipv6_ops" struct to register pointers to ipv6 functions. While the former might seem preferable, Pablo pointed out that there are more xt modules with link-time dependeny issues regarding ipv6, so lets go for 2). Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* | | | Merge branch 'for-3.10-fixes' of ↵Linus Torvalds2013-06-03
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup fixes from Tejun Heo: - Fix for yet another xattr bug which may lead to NULL deref. - A subtle bug in for_each_descendant_pre(). This bug requires quite specific conditions to trigger and isn't too likely to actually happen in the wild, but maybe that just makes it that much more nastier. - A warning message added for silly cgroup re-mount (not -o remount, but unmount followed by mount) behavior. * 'for-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: warn about mismatching options of a new mount of an existing hierarchy cgroup: fix a subtle bug in descendant pre-order walk cgroup: initialize xattr before calling d_instantiate()
| * | | | cgroup: fix a subtle bug in descendant pre-order walkTejun Heo2013-05-23
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When cgroup_next_descendant_pre() initiates a walk, it checks whether the subtree root doesn't have any children and if not returns NULL. Later code assumes that the subtree isn't empty. This is broken because the subtree may become empty inbetween, which can lead to the traversal escaping the subtree by walking to the sibling of the subtree root. There's no reason to have the early exit path. Remove it along with the later assumption that the subtree isn't empty. This simplifies the code a bit and fixes the subtle bug. While at it, fix the comment of cgroup_for_each_descendant_pre() which was incorrectly referring to ->css_offline() instead of ->css_online(). Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Michal Hocko <mhocko@suse.cz> Cc: stable@vger.kernel.org
* | | | aerdrv: Move cper_print_aer() call out of interrupt contextLance Ortiz2013-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following warning was seen on 3.9 when a corrected PCIe error was being handled by the AER subsystem. WARNING: at .../drivers/pci/search.c:214 pci_get_dev_by_id+0x8a/0x90() This occurred because a call to pci_get_domain_bus_and_slot() was added to cper_print_pcie() to setup for the call to cper_print_aer(). The warning showed up because cper_print_pcie() is called in an interrupt context and pci_get* functions are not supposed to be called in that context. The solution is to move the cper_print_aer() call out of the interrupt context and into aer_recover_work_func() to avoid any warnings when calling pci_get* functions. Signed-off-by: Lance Ortiz <lance.ortiz@hp.com> Acked-by: Borislav Petkov <bp@suse.de> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | | Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds2013-05-25
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull slave-dma fixes from Vinod Koul: "We have two patches from Andy & Rafael fixing the Lynxpoint dma" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: ACPI / LPSS: register clock device for Lynxpoint DMA properly dma: acpi-dma: parse CSRT to extract additional resources
| * | | | ACPI / LPSS: register clock device for Lynxpoint DMA properlyRafael J. Wysocki2013-05-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The DMA controller in Lynxpoint is enumerated as a regular ACPI device now. To work properly it is using the LPSS root clock as a functional clock. That's why we have to register the clock device accordingly to the ACPI ID of the DMA controller. The acpi_lpss.c module is responsible to do the job. This patch also removes hardcoded name of the DMA device in clk-lpt.c and the name of the root clock in acpi_lpss.c. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | | | dma: acpi-dma: parse CSRT to extract additional resourcesAndy Shevchenko2013-05-14
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we have CSRT only to get additional DMA controller resources, let's get rid of drivers/acpi/csrt.c and move its logic inside ACPI DMA helpers code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* | | | Merge branch 'akpm' (incoming from Andrew Morton)Linus Torvalds2013-05-24
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge fixes from Andrew Morton: "A bunch of fixes and one simple fbdev driver which missed the merge window because people will still talking about it (to no great effect)." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (30 commits) aio: fix kioctx not being freed after cancellation at exit time mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas drivers/rtc/rtc-max8998.c: check for pdata presence before dereferencing ocfs2: goto out_unlock if ocfs2_get_clusters_nocache() failed in ocfs2_fiemap() random: fix accounting race condition with lockless irq entropy_count update drivers/char/random.c: fix priming of last_data mm/memory_hotplug.c: fix printk format warnings nilfs2: fix issue of nilfs_set_page_dirty() for page at EOF boundary drivers/block/brd.c: fix brd_lookup_page() race fbdev: FB_GOLDFISH should depend on HAS_DMA drivers/rtc/rtc-pl031.c: pass correct pointer to free_irq() auditfilter.c: fix kernel-doc warnings aio: fix io_getevents documentation revert "selftest: add simple test for soft-dirty bit" drivers/leds/leds-ot200.c: fix error caused by shifted mask mm/THP: use pmd_populate() to update the pmd with pgtable_t pointer linux/kernel.h: fix kernel-doc warning mm compaction: fix of improper cache flush in migration code rapidio/tsi721: fix bug in MSI interrupt handling hfs: avoid crash in hfs_bnode_create ...
| * | | | linux/kernel.h: fix kernel-doc warningRandy Dunlap2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix kernel-doc warning in <linux/kernel.h>: Warning(include/linux/kernel.h:590): No description found for parameter 'ip' scripts/kernel-doc cannot handle macros, functions, or function prototypes between the function or macro that is being documented and its definition, so move these prototypes above the function that is being documented. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | wait: fix false timeouts when using wait_event_timeout()Imre Deak2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many callers of the wait_event_timeout() and wait_event_interruptible_timeout() expect that the return value will be positive if the specified condition becomes true before the timeout elapses. However, at the moment this isn't guaranteed. If the wake-up handler is delayed enough, the time remaining until timeout will be calculated as 0 - and passed back as a return value - even if the condition became true before the timeout has passed. Fix this by returning at least 1 if the condition becomes true. This semantic is in line with what wait_for_condition_timeout() does; see commit bb10ed09 ("sched: fix wait_for_completion_timeout() spurious failure under heavy load"). Daniel said "We have 3 instances of this bug in drm/i915. One case even where we switch between the interruptible and not interruptible wait_event_timeout variants, foolishly presuming they have the same semantics. I very much like this." One such bug is reported at https://bugs.freedesktop.org/show_bug.cgi?id=64133 Signed-off-by: Imre Deak <imre.deak@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Jens Axboe <axboe@kernel.dk> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: Dave Jones <davej@redhat.com> Cc: Lukas Czerner <lczerner@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | rapidio: add enumeration/discovery start from user spaceAlexandre Bounine2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add RapidIO enumeration/discovery start from user space. User space start allows to defer RapidIO fabric scan until the moment when all participating endpoints are initialized avoiding mandatory synchronized start of all endpoints (which may be challenging in systems with large number of RapidIO endpoints). Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Andre van Herk <andre.van.herk@Prodrive.nl> Cc: Micha Nelissen <micha.nelissen@Prodrive.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | rapidio: make enumeration/discovery configurableAlexandre Bounine2013-05-24
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Systems that use RapidIO fabric may need to implement their own enumeration and discovery methods which are better suitable for needs of a target application. The following set of patches is intended to simplify process of introduction of new RapidIO fabric enumeration/discovery methods. The first patch offers ability to add new RapidIO enumeration/discovery methods using kernel configuration options. This new configuration option mechanism allows to select statically linked or modular enumeration/discovery method(s) from the list of existing methods or use external module(s). This patch also updates the currently existing enumeration/discovery code to be used as a statically linked or modular method. The corresponding configuration option is named "Basic enumeration/discovery" method. This is the only one configuration option available today but new methods are expected to be introduced after adoption of provided patches. The second patch address a long time complaint of RapidIO subsystem users regarding fabric enumeration/discovery start sequence. Existing implementation offers only a boot-time enumeration/discovery start which requires synchronized boot of all endpoints in RapidIO network. While it works for small closed configurations with limited number of endpoints, using this approach in systems with large number of endpoints is quite challenging. To eliminate requirement for synchronized start the second patch introduces RapidIO enumeration/discovery start from user space. For compatibility with the existing RapidIO subsystem implementation, automatic boot time enumeration/discovery start can be configured in by specifying "rio-scan.scan=1" command line parameter if statically linked basic enumeration method is selected. This patch: Rework to implement RapidIO enumeration/discovery method selection combined with ability to use enumeration/discovery as a kernel module. This patch adds ability to introduce new RapidIO enumeration/discovery methods using kernel configuration options. Configuration option mechanism allows to select statically linked or modular enumeration/discovery method from the list of existing methods or use external modules. If a modular enumeration/discovery is selected each RapidIO mport device can have its own method attached to it. The existing enumeration/discovery code was updated to be used as statically linked or modular method. This configuration option is named "Basic enumeration/discovery" method. Several common routines have been moved from rio-scan.c to make them available to other enumeration methods and reduce number of exported symbols. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Andre van Herk <andre.van.herk@Prodrive.nl> Cc: Micha Nelissen <micha.nelissen@Prodrive.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge tag 'fixes-for-linus' of ↵Linus Torvalds2013-05-24
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "We didn't have any fixes sent up for -rc2, so this is a slightly larger batch. A bit all over the place platform-wise; OMAP, at91, marvell, renesas, sunxi, ux500, etc. I tried to summarize highlights but there isn't a whole lot to point out. Lots of little things fixed all over. A couple of defconfig updates due to new/changing options." * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (44 commits) ARM: at91/sama5: fix incorrect PMC pcr div definition ARM: at91/dt: fix macb pinctrl_macb_rmii_mii_alt definition ARM: at91: at91sam9n12: move external irq declatation to DT ARM: shmobile: marzen: Use error values in usb_power_* ARM: tegra: defconfig fixes ARM: nomadik: fix IRQ assignment for SMC ethernet ARM: vt8500: Add missing NULL terminator in dt_compat clk: tegra: add ac97 controller clock clk: tegra: remove USB from clk init table ARM: dts: mvebu: Fix wrong the address reg value for the L2-cache node ARM: plat-orion: Fix num_resources and id for ge10 and ge11 ARM: OMAP2+: hwmod: Remove sysc slave idle and auto idle apis SERIAL: OMAP: Remove the slave idle handling from the driver ARM: OMAP2+: serial: Remove the un-used slave idle hooks ARM: OMAP2+: hwmod-data: UART IP needs software control to manage sidle modes ARM: OMAP2+: hwmod: Add a new flag to handle SIDLE in SWSUP only in active ARM: OMAP2+: hwmod: Fix sidle programming in _enable_sysc()/_idle_sysc() arm: mvebu: fix the 'ranges' property to handle PCIe ARM: mvebu: select ARCH_REQUIRE_GPIOLIB for mvebu platform ARM: AM33XX: Add missing .clkdm_name to clkdiv32k_ick clock ...
| * | | Merge tag 'omap-fixes-a-for-3.10-rc' of ↵Olof Johansson2013-05-22
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes From Paul Walmsley: Fix the OMAP serial driver to work correctly on OMAP4 when booting with DT. * tag 'omap-fixes-a-for-3.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending: ARM: OMAP2+: hwmod: Remove sysc slave idle and auto idle apis SERIAL: OMAP: Remove the slave idle handling from the driver ARM: OMAP2+: serial: Remove the un-used slave idle hooks ARM: OMAP2+: hwmod-data: UART IP needs software control to manage sidle modes ARM: OMAP2+: hwmod: Add a new flag to handle SIDLE in SWSUP only in active ARM: OMAP2+: hwmod: Fix sidle programming in _enable_sysc()/_idle_sysc() Signed-off-by: Olof Johansson <olof@lixom.net>
| | * | | SERIAL: OMAP: Remove the slave idle handling from the driverSantosh Shilimkar2013-05-19
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | UART IP slave idle handling now taken care by runtime pm backend(hwmod layer) so remove the hackery from the driver. As discussed on the list, in future if dma mode needs to be brought back to this driver, UART sysc handling needs to be updated in framework such a way that no-idle/force idle profile can be supported. Given the broken dma mode for OMAP uarts, its very unlikely. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Tested-by: Vaibhav Bedia <vaibhav.bedia@ti.com> Tested-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Rajendra nayak <rnayak@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Tested-by: Kevin Hilman <khilman@linaro.org> # OMAP4/Panda Signed-off-by: Paul Walmsley <paul@pwsan.com>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2013-05-24
|\ \ \ \ | | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: "It's been a while since my last pull request so quite a few fixes have piled up." Indeed. 1) Fix nf_{log,queue} compilation with PROC_FS disabled, from Pablo Neira Ayuso. 2) Fix data corruption on some tg3 chips with TSO enabled, from Michael Chan. 3) Fix double insertion of VLAN tags in be2net driver, from Sarveshwar Bandi. 4) Don't have TCP's MD5 support pass > PAGE_SIZE page offsets in scatter-gather entries into the crypto layer, the crypto layer can't handle that. From Eric Dumazet. 5) Fix lockdep splat in 802.1Q MRP code, also from Eric Dumazet. 6) Fix OOPS in netfilter log module when called from conntrack, from Hans Schillstrom. 7) FEC driver needs to use netif_tx_{lock,unlock}_bh() rather than the non-BH disabling variants. From Fabio Estevam. 8) TCP GSO can generate out-of-order packets, fix from Eric Dumazet. 9) vxlan driver doesn't update 'used' field of fdb entries when it should, from Sridhar Samudrala. 10) ipv6 should use kzalloc() to allocate inet6 socket cork options, otherwise we can OOPS in ip6_cork_release(). From Eric Dumazet. 11) Fix races in bonding set mode, from Nikolay Aleksandrov. 12) Fix checksum generation regression added by "r8169: fix 8168evl frame padding.", from Francois Romieu. 13) ip_gre can look at stale SKB data pointer, fix from Eric Dumazet. 14) Fix checksum handling when GSO is enabled in bnx2x driver with certain chips, from Yuval Mintz. 15) Fix double free in batman-adv, from Martin Hundebøll. 16) Fix device startup synchronization with firmware in tg3 driver, from Nithin Sujit. 17) perf networking dropmonitor doesn't work at all due to mixed up trace parameter ordering, from Ben Hutchings. 18) Fix proportional rate reduction handling in tcp_ack(), from Nandita Dukkipati. 19) IPSEC layer doesn't return an error when a valid state is detected, causing an OOPS. Fix from Timo Teräs. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (85 commits) be2net: bug fix on returning an invalid nic descriptor tcp: xps: fix reordering issues net: Revert unused variable changes. xfrm: properly handle invalid states as an error virtio_net: enable napi for all possible queues during open tcp: bug fix in proportional rate reduction. net: ethernet: sun: drop unused variable net: ethernet: korina: drop unused variable net: ethernet: apple: drop unused variable qmi_wwan: Added support for Cinterion's PLxx WWAN Interface perf: net_dropmonitor: Remove progress indicator perf: net_dropmonitor: Use bisection in symbol lookup perf: net_dropmonitor: Do not assume ordering of dictionaries perf: net_dropmonitor: Fix symbol-relative addresses perf: net_dropmonitor: Fix trace parameter order net: fec: use a more proper compatible string for MVF type device qlcnic: Fix updating netdev->features qlcnic: remove netdev->trans_start updates within the driver qlcnic: Return proper error codes from probe failure paths tg3: Update version to 3.132 ...
| * | | Merge branch 'master' of ↵John W. Linville2013-05-20
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
| | * | | bcma: add more core IDsRafał Miłecki2013-05-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PCIe and ARM CR4 cores were found on 14e4:43b1 AKA BCM4352. Reported-by: Gabriel Thörnblad <gabriel@thornblad.com> Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | bonding: allow TSO being set on bonding masterEric Dumazet2013-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some situations, we need to disable TSO on bonding slaves. bonding device automatically unset TSO in bond_fix_features(), and performance is not good because : 1) We consume more cpu cycles. 2) GSO segmentation has some bugs leading to out of order TCP packets if this segmentation is done before virtual device. This particular problem will be addressed in a separate patch. This patch allows TSO being set/unset on the bonding master, so that GSO segmentation is done after bonding layer. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Michał Mirosław <mirqus@gmail.com> Cc: Jay Vosburgh <fubar@us.ibm.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Maciej Żenczykowski <maze@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | broadcom: add include guards to include/linux/brcmphy.hFlorian Fainelli2013-05-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | include/linux/brcmphy.h is currently not protected against double inclusion, add ifdefs guard to fix that. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | Merge tag 'pci-v3.10-fixes-2' of ↵Linus Torvalds2013-05-23
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Here are some more fixes for v3.10. The Moorestown update broke Intel Medfield devices, so I reverted it. The acpiphp change fixes a regression: we broke hotplug notifications to host bridges when we split acpiphp into the host-bridge related part and the endpoint-related part. Moorestown Revert "x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0" Hotplug PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check" * tag 'pci-v3.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: Revert "x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0" PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check
| * | | | | PCI: acpiphp: Re-enumerate devices when host bridge receives Bus CheckYinghai Lu2013-05-17
| | |_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a PCI host bridge device receives a Bus Check notification, we must re-enumerate starting with the bridge to discover changes (devices that have been added or removed). Prior to 668192b678 ("PCI: acpiphp: Move host bridge hotplug to pci_root.c"), this happened in _handle_hotplug_event_bridge(). After that commit, _handle_hotplug_event_bridge() is not installed for host bridges, and the host bridge notify handler, _handle_hotplug_event_root() did not re-enumerate. This patch adds re-enumeration to _handle_hotplug_event_root(). This fixes cases where we don't notice the addition or removal of PCI devices, e.g., the PCI-to-USB ExpressCard in the bugzilla below. [bhelgaas: changelog, references] Reference: https://lkml.kernel.org/r/CAAh6nkmbKR3HTqm5ommevsBwhL_u0N8Rk7Wsms_LfP=nBgKNew@mail.gmail.com Reference: https://bugzilla.kernel.org/show_bug.cgi?id=57961 Reported-by: Gavin Guo <tuffkidtt@gmail.com> Tested-by: Gavin Guo <tuffkidtt@gmail.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> CC: stable@vger.kernel.org # v3.9+
* | | | | Merge tag 'tty-3.10-rc2' of ↵Linus Torvalds2013-05-23
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial fixes from Greg Kroah-Hartman: "Here are some tty / serial driver fixes for 3.10-rc2. Nothing huge, although the rocket driver fix looks large, it's just moving the code around to fix the reported build issues in it. Other than that, this has the fix for the of-reported lockdep warning from the vt layer, as well as some other needed bugfixes. All of these have been in linux-next for a while" * tag 'tty-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: mxser: Fix build warning introduced by dfc7b837c7f9 (Re: linux-next: build warning after merge of the tty.current tree) tty: mxser: fix usage of opmode_ioaddr serial: 8250_dw: add ACPI ID for Intel BayTrail TTY: Fix tty miss restart after we turn off flow-control tty/vt: Fix vc_deallocate() lock order TTY: ehv_bytechan: add missing platform_driver_unregister() when module exit TTY: rocket, fix more no-PCI warnings serial: mcf: missing uart_unregister_driver() on error in mcf_init() tty: serial: mpc5xxx: fix error handing in mpc52xx_uart_init() serial: samsung: add missing platform_driver_unregister() when module exit serial: pl011: protect attribute read from NULL platform data struct tty: nwpserial: Pass correct pointer to free_irq() serial: 8250_dw: Add valid clk pointer check
| * | | | | tty/vt: Fix vc_deallocate() lock orderPeter Hurley2013-05-20
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the tty port owns the flip buffers and i/o is allowed from the driver even when no tty is attached, the destruction of the tty port (and the flip buffers) must ensure that no outstanding work is pending. Unfortunately, this creates a lock order problem with the console_lock (see attached lockdep report [1] below). For single console deallocation, drop the console_lock prior to port destruction. When multiple console deallocation, defer port destruction until the consoles have been deallocated. tty_port_destroy() is not required if the port has not been used; remove from vc_allocate() failure path. [1] lockdep report from Dave Jones <davej@redhat.com> ====================================================== [ INFO: possible circular locking dependency detected ] 3.9.0+ #16 Not tainted ------------------------------------------------------- (agetty)/26163 is trying to acquire lock: blocked: ((&buf->work)){+.+...}, instance: ffff88011c8b0020, at: [<ffffffff81062065>] flush_work+0x5/0x2e0 but task is already holding lock: blocked: (console_lock){+.+.+.}, instance: ffffffff81c2fde0, at: [<ffffffff813bc201>] vt_ioctl+0xb61/0x1230 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (console_lock){+.+.+.}: [<ffffffff810b3f74>] lock_acquire+0xa4/0x210 [<ffffffff810416c7>] console_lock+0x77/0x80 [<ffffffff813c3dcd>] con_flush_chars+0x2d/0x50 [<ffffffff813b32b2>] n_tty_receive_buf+0x122/0x14d0 [<ffffffff813b7709>] flush_to_ldisc+0x119/0x170 [<ffffffff81064381>] process_one_work+0x211/0x700 [<ffffffff8106498b>] worker_thread+0x11b/0x3a0 [<ffffffff8106ce5d>] kthread+0xed/0x100 [<ffffffff81601cac>] ret_from_fork+0x7c/0xb0 -> #0 ((&buf->work)){+.+...}: [<ffffffff810b349a>] __lock_acquire+0x193a/0x1c00 [<ffffffff810b3f74>] lock_acquire+0xa4/0x210 [<ffffffff810620ae>] flush_work+0x4e/0x2e0 [<ffffffff81065305>] __cancel_work_timer+0x95/0x130 [<ffffffff810653b0>] cancel_work_sync+0x10/0x20 [<ffffffff813b8212>] tty_port_destroy+0x12/0x20 [<ffffffff813c65e8>] vc_deallocate+0xf8/0x110 [<ffffffff813bc20c>] vt_ioctl+0xb6c/0x1230 [<ffffffff813b01a5>] tty_ioctl+0x285/0xd50 [<ffffffff811ba825>] do_vfs_ioctl+0x305/0x530 [<ffffffff811baad1>] sys_ioctl+0x81/0xa0 [<ffffffff81601d59>] system_call_fastpath+0x16/0x1b other info that might help us debug this: [ 6760.076175] Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(console_lock); lock((&buf->work)); lock(console_lock); lock((&buf->work)); *** DEADLOCK *** 1 lock on stack by (agetty)/26163: #0: blocked: (console_lock){+.+.+.}, instance: ffffffff81c2fde0, at: [<ffffffff813bc201>] vt_ioctl+0xb61/0x1230 stack backtrace: Pid: 26163, comm: (agetty) Not tainted 3.9.0+ #16 Call Trace: [<ffffffff815edb14>] print_circular_bug+0x200/0x20e [<ffffffff810b349a>] __lock_acquire+0x193a/0x1c00 [<ffffffff8100a269>] ? sched_clock+0x9/0x10 [<ffffffff8100a269>] ? sched_clock+0x9/0x10 [<ffffffff8100a200>] ? native_sched_clock+0x20/0x80 [<ffffffff810b3f74>] lock_acquire+0xa4/0x210 [<ffffffff81062065>] ? flush_work+0x5/0x2e0 [<ffffffff810620ae>] flush_work+0x4e/0x2e0 [<ffffffff81062065>] ? flush_work+0x5/0x2e0 [<ffffffff810b15db>] ? mark_held_locks+0xbb/0x140 [<ffffffff8113c8a3>] ? __free_pages_ok.part.57+0x93/0xc0 [<ffffffff810b15db>] ? mark_held_locks+0xbb/0x140 [<ffffffff810652f2>] ? __cancel_work_timer+0x82/0x130 [<ffffffff81065305>] __cancel_work_timer+0x95/0x130 [<ffffffff810653b0>] cancel_work_sync+0x10/0x20 [<ffffffff813b8212>] tty_port_destroy+0x12/0x20 [<ffffffff813c65e8>] vc_deallocate+0xf8/0x110 [<ffffffff813bc20c>] vt_ioctl+0xb6c/0x1230 [<ffffffff810aec41>] ? lock_release_holdtime.part.30+0xa1/0x170 [<ffffffff813b01a5>] tty_ioctl+0x285/0xd50 [<ffffffff812b00f6>] ? inode_has_perm.isra.46.constprop.61+0x56/0x80 [<ffffffff811ba825>] do_vfs_ioctl+0x305/0x530 [<ffffffff812b04db>] ? selinux_file_ioctl+0x5b/0x110 [<ffffffff811baad1>] sys_ioctl+0x81/0xa0 [<ffffffff81601d59>] system_call_fastpath+0x16/0x1b Cc: Dave Jones <davej@redhat.com> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | Merge tag 'usb-3.10-rc2' of ↵Linus Torvalds2013-05-23
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg Kroah-Hartman: "Here are a number of tiny USB bugfixes / new device ids for 3.10-rc2 The majority of these are USB gadget fixes, but they are all small. Other than that, some USB host controller fixes, and USB serial driver fixes for problems reported with them. Also hopefully a fixed up USB_OTG Kconfig dependancy, that one seems to be almost impossible to get right for all of the different platforms these days." * tag 'usb-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (56 commits) USB: cxacru: potential underflow in cxacru_cm_get_array() USB: ftdi_sio: Add support for Newport CONEX motor drivers USB: option: add device IDs for Dell 5804 (Novatel E371) WWAN card usb: ohci: fix goto wrong tag in err case usb: isp1760-if: fix memleak when platform_get_resource fail usb: ehci-s5p: fix memleak when fallback to pdata USB: serial: clean up chars_in_buffer USB: ti_usb_3410_5052: fix chars_in_buffer overhead USB: io_ti: fix chars_in_buffer overhead USB: ftdi_sio: fix chars_in_buffer overhead USB: ftdi_sio: clean up get_modem_status USB: serial: add generic wait_until_sent implementation USB: serial: add wait_until_sent operation USB: set device dma_mask without reference to global data USB: Blacklisted Cinterion's PLxx WWAN Interface usb: option: Add Telewell TW-LTE 4G USB: EHCI: remove bogus #error USB: reset resume quirk needed by a hub USB: usb-stor: realtek_cr: Fix compile error usb, chipidea: fix link error when USB_EHCI_HCD is a module ...
| * | | | | USB: serial: add generic wait_until_sent implementationJohan Hovold2013-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add generic wait_until_sent implementation which polls for empty hardware buffers using the new port-operation tx_empty. The generic implementation will be used for all sub-drivers that implement tx_empty but does not define wait_until_sent. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | USB: serial: add wait_until_sent operationJohan Hovold2013-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add wait_until_sent operation which can be used to wait for hardware buffers to drain. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 07:00:42 -0500