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2013-12-12futex: move user address verification up to common codeLinus Torvalds
When debugging the read-only hugepage case, I was confused by the fact that get_futex_key() did an access_ok() only for the non-shared futex case, since the user address checking really isn't in any way specific to the private key handling. Now, it turns out that the shared key handling does effectively do the equivalent checks inside get_user_pages_fast() (it doesn't actually check the address range on x86, but does check the page protections for being a user page). So it wasn't actually a bug, but the fact that we treat the address differently for private and shared futexes threw me for a loop. Just move the check up, so that it gets done for both cases. Also, use the 'rw' parameter for the type, even if it doesn't actually matter any more (it's a historical artifact of the old racy i386 "page faults from kernel space don't check write protections"). Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12futex: fix handling of read-only-mapped hugepagesLinus Torvalds
The hugepage code had the exact same bug that regular pages had in commit 7485d0d3758e ("futexes: Remove rw parameter from get_futex_key()"). The regular page case was fixed by commit 9ea71503a8ed ("futex: Fix regression with read only mappings"), but the transparent hugepage case (added in a5b338f2b0b1: "thp: update futex compound knowledge") case remained broken. Found by Dave Jones and his trinity tool. Reported-and-tested-by: Dave Jones <davej@fedoraproject.org> Cc: stable@kernel.org # v2.6.38+ Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mel Gorman <mgorman@suse.de> Cc: Darren Hart <dvhart@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12Btrfs: fix access_ok() check in btrfs_ioctl_send()Dan Carpenter
The closing parenthesis is in the wrong place. We want to check "sizeof(*arg->clone_sources) * arg->clone_sources_count" instead of "sizeof(*arg->clone_sources * arg->clone_sources_count)". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Jie Liu <jeff.liu@oracle.com> Signed-off-by: Chris Mason <clm@fb.com> cc: stable@vger.kernel.org
2013-12-12Btrfs: make sure we cleanup all reloc roots if error happensWang Shilong
I hit an oops when merging reloc roots fails, the reason is that new reloc roots may be added and we should make sure we cleanup all reloc roots. Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
2013-12-12Btrfs: skip building backref tree for uuid and quota tree when doing balance ↵Wang Shilong
relocation Quota tree and UUID Tree is only cowed, they can not be snapshoted. Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
2013-12-12Btrfs: fix an oops when doing balance relocationWang Shilong
I hit an oops when inserting reloc root into @reloc_root_tree(it can be easily triggered when forcing cow for relocation root) [ 866.494539] [<ffffffffa0499579>] btrfs_init_reloc_root+0x79/0xb0 [btrfs] [ 866.495321] [<ffffffffa044c240>] record_root_in_trans+0xb0/0x110 [btrfs] [ 866.496109] [<ffffffffa044d758>] btrfs_record_root_in_trans+0x48/0x80 [btrfs] [ 866.496908] [<ffffffffa0494da8>] select_reloc_root+0xa8/0x210 [btrfs] [ 866.497703] [<ffffffffa0495c8a>] do_relocation+0x16a/0x540 [btrfs] This is because reloc root inserted into @reloc_root_tree is not within one transaction,reloc root may be cowed and root block bytenr will be reused then oops happens.We should update reloc root in @reloc_root_tree when cow reloc root node, fix it. Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Reviewed-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
2013-12-12Btrfs: don't miss skinny extent items on delayed ref head contentionFilipe David Borba Manana
Currently extent-tree.c:btrfs_lookup_extent_info() can miss the lookup of skinny extent items. This can happen when the execution flow is the following: * We do an extent tree lookup and fail to find a skinny extent item; * As a result, we attempt to see if a non-skinny extent item exists, either by looking at previous item in the leaf or by doing another full extent tree search; * We have a transaction and then we check for a matching delayed ref head in the transaction's delayed refs rbtree; * We find such delayed ref head and then we try to lock it with a call to mutex_trylock(); * The lock was contended so we jump to the label "again", which repeats the extent tree search but for a non-skinny extent item, because we set previously metadata variable to 0 and the search key to look for a non-skinny extent-item; * After the jump (and after releasing the transaction's delayed refs lock), a skinny extent item might have been added to the extent tree but we will miss it because metadata is set to 0 and the search key is set for a non-skinny extent-item. The fix here is to not reset metadata to 0 and to jump to the initial search key setup if the delayed ref head is contended, instead of jumping directly to the extent tree search label ("again"). This issue was found while investigating the issue reported at Bugzilla 64961. David Sterba suspected this function was missing extent items, and that this could be caused by the last change to this function, which was made in the following patch: [PATCH] Btrfs: optimize btrfs_lookup_extent_info() (commit 74be9510876a66ad9826613ac8a526d26f9e7f01) But in fact this issue already existed before, because after failing to find a skinny extent item, the code set the search key for a non-skinny extent item, and on contention of a matching delayed ref head it would not search the extent tree for a skinny extent item anymore. Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com> Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: Chris Mason <clm@fb.com>
2013-12-12btrfs: call mnt_drop_write after interrupted subvol deletionDavid Sterba
If btrfs_ioctl_snap_destroy blocks on the mutex and the process is killed, mnt_write count is unbalanced and leads to unmountable filesystem. CC: stable@vger.kernel.org Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Chris Mason <clm@fb.com>
2013-12-12Btrfs: don't clear the default compression typeMiao Xie
We met a oops caused by the wrong compression type: [ 556.512356] BUG: unable to handle kernel NULL pointer dereference at (null) [ 556.512370] IP: [<ffffffff811dbaa0>] __list_del_entry+0x1/0x98 [SNIP] [ 556.512490] [<ffffffff811dbb44>] ? list_del+0xd/0x2b [ 556.512539] [<ffffffffa05dd5ce>] find_workspace+0x97/0x175 [btrfs] [ 556.512546] [<ffffffff813c14b5>] ? _raw_spin_lock+0xe/0x10 [ 556.512576] [<ffffffffa05de276>] btrfs_compress_pages+0x2d/0xa2 [btrfs] [ 556.512601] [<ffffffffa05af060>] compress_file_range.constprop.54+0x1f2/0x4e8 [btrfs] [ 556.512627] [<ffffffffa05af388>] async_cow_start+0x32/0x4d [btrfs] [ 556.512655] [<ffffffffa05cc7a1>] worker_loop+0x144/0x4c3 [btrfs] [ 556.512661] [<ffffffff81059404>] ? finish_task_switch+0x80/0xb8 [ 556.512689] [<ffffffffa05cc65d>] ? btrfs_queue_worker+0x244/0x244 [btrfs] [ 556.512695] [<ffffffff8104fa4e>] kthread+0x8d/0x95 [ 556.512699] [<ffffffff81050000>] ? bit_waitqueue+0x34/0x7d [ 556.512704] [<ffffffff8104f9c1>] ? __kthread_parkme+0x65/0x65 [ 556.512709] [<ffffffff813c7eec>] ret_from_fork+0x7c/0xb0 [ 556.512713] [<ffffffff8104f9c1>] ? __kthread_parkme+0x65/0x65 Steps to reproduce: # mkfs.btrfs -f <dev> # mount -o nodatacow <dev> <mnt> # touch <mnt>/<file> # chattr =c <mnt>/<file> # dd if=/dev/zero of=<mnt>/<file> bs=1M count=10 It is because we cleared the default compression type when setting the nodatacow. In fact, we needn't do it because we have used COMPRESS flag to indicate if we need compressed the file data or not, needn't use the variant -- compress_type -- in btrfs_info to do the same thing, and just use it to hold the default compression type. Or we would get a wrong compress type for a file whose own compress flag is set but the compress flag of its filesystem is not set. Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: Chris Mason <clm@fb.com>
2013-12-12hwmon: Prevent some divide by zeros in FAN_TO_REG()Dan Carpenter
The "rpm * div" operations can overflow here, so this patch adds an upper limit to rpm to prevent that. Jean Delvare helped me with this patch. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Roger Lucas <vt8231@hiddenengine.co.uk> Cc: stable@vger.kernel.org Signed-off-by: Jean Delvare <khali@linux-fr.org>
2013-12-12hwmon: (w83l768ng) Fix fan speed control rangeJean Delvare
The W83L786NG stores the fan speed on 4 bits while the sysfs interface uses a 0-255 range. Thus the driver should scale the user input down to map it to the device range, and scale up the value read from the device before presenting it to the user. The reserved register nibble should be left unchanged. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@vger.kernel.org Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2013-12-12hwmon: (w83l786ng) Fix fan speed control mode setting and reportingBrian Carnes
The wrong mask is used, which causes some fan speed control modes (pwmX_enable) to be incorrectly reported, and some modes to be impossible to set. [JD: add subject and description.] Signed-off-by: Brian Carnes <bmcarnes@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Jean Delvare <khali@linux-fr.org>
2013-12-12hwmon: (lm90) Unregister hwmon device if interrupt setup failsGuenter Roeck
Commit 109b1283fb (hwmon: (lm90) Add support to handle IRQ) introduced interrupt support. Its error handling code fails to unregister the already registered hwmon device. Fixes: 109b1283fb532ac773a076748ffccf76a7067cab Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2013-12-11sch_tbf: use do_div() for 64-bit divideYang Yingliang
It's doing a 64-bit divide which is not supported on 32-bit architectures in psched_ns_t2l(). The correct way to do this is to use do_div(). It's introduced by commit cc106e441a63 ("net: sched: tbf: fix the calculation of max_size") Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11udp: ipv4: must add synchronization in udp_sk_rx_dst_set()Eric Dumazet
Unlike TCP, UDP input path does not hold the socket lock. Before messing with sk->sk_rx_dst, we must use a spinlock, otherwise multiple cpus could leak a refcount. This patch also takes care of renewing a stale dst entry. (When the sk->sk_rx_dst would not be used by IP early demux) Fixes: 421b3885bf6d ("udp: ipv4: Add udp early demux") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Shawn Bohrer <sbohrer@rgmadvisors.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11net:fec: remove duplicate lines in comment about errata ERR006358Philippe De Muyter
commit 031916568a1aa2ef1809f86d26f0bcfa215ff5c0 worked around errata ERR006358, but comment contains duplicated lines, impairing the readability. Remove them. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11ARM: sun6i: dt: Fix interrupt trigger typesMaxime Ripard
The Allwinner A31 uses the ARM GIC as its internal interrupts controller. The GIC can work on several interrupt triggers, and the A31 was actually setting it up to use a rising edge as a trigger, while it was actually a level high trigger, leading to some interrupts that would be completely ignored if the edge was missed. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Cc: stable@vger.kernel.org # 3.12+ Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: sun7i: dt: Fix interrupt trigger typesMaxime Ripard
The Allwinner A20 uses the ARM GIC as its internal interrupts controller. The GIC can work on several interrupt triggers, and the A20 was actually setting it up to use a rising edge as a trigger, while it was actually a level high trigger, leading to some interrupts that would be completely ignored if the edge was missed. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Cc: stable@vger.kernel.org #3.12+ Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11MAINTAINERS: merge IMX6 entry into IMXShawn Guo
I have been co-maintaining IMX sub-architecture for a couple of years, and collecting IMX sub-architecture patches rather than IMX6 only ones for a few release cycles. It makes sense to officially add myself as the co-maintainer for IMX sub-architecture now. Consequently, IMX6 entry can just be merged into IMX. While at it, add a 'F:' entry for IMX DTS files. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: tegra: add missing break to fuse initialization codeStephen Warren
Add a missing break to the switch in tegra_init_fuse() which determines which SoC the code is running on. This prevents the Tegra30+ fuse handling code from running on Tegra20. Fixes: 3bd1ae57f7bb ("ARM: tegra: add fuses as device randomness") Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: pxa: prevent PXA270 occasional reboot freezesSergei Ianovich
Erratum 71 of PXA270M Processor Family Specification Update (April 19, 2010) explains that watchdog reset time is just 8us insead of 10ms in EMTS. If SDRAM is not reset, it causes memory bus congestion and the device hangs. We put SDRAM in selfresh mode before watchdog reset, removing potential freezes. Without this patch PXA270-based ICP DAS LP-8x4x hangs after up to 40 reboots. With this patch it has successfully rebooted 500 times. Signed-off-by: Sergei Ianovich <ynvich@gmail.com> Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: pxa: tosa: fix keys mappingDmitry Eremin-Solenikov
When converting from tosa-keyboard driver to matrix keyboard, tosa keys received extra 1 column shift. Replace that with correct values to make keyboard work again. Fixes: f69a6548c9d5 ('[ARM] pxa/tosa: make use of the matrix keypad driver') Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11Merge remote-tracking branches 'regulator/fix/as3722' and ↵Mark Brown
'regulator/fix/pfuze100' into regulator-linus
2013-12-11Revert "8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature"David S. Miller
This reverts commit 99023e90fe5c147ea0665bda86764ea44f08a622. Accidently checked this into 'net' instead of 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-118390 : Replace ei_debug with msg_enable/NETIF_MSG_* featureMatthew Whitehead
Removed the shared ei_debug variable. Replaced it by adding u32 msg_enable to the private struct ei_device. Now each 8390 ethernet instance has a per-device logging variable. Changed older style printk() calls to more canonical forms. Tested on: ne, ne2k-pci, smc-ultra, and wd hardware. V4.0 - Substituted pr_info() and pr_debug() for printk() KERN_INFO and KERN_DEBUG V3.0 - Checked for cases where pr_cont() was most appropriate choice. - Changed module parameter from 'debug' to 'msg_enable' because debug was no longer the best description. V2.0 - Changed netif_msg_(drv|probe|ifdown|rx_err|tx_err|tx_queued|intr|rx_status|hw) to netif_(dbg|info|warn|err) where possible. Signed-off-by: Matthew Whitehead <tedheadster@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11xen-netback: make sure skb linear area covers checksum fieldPaul Durrant
skb_partial_csum_set requires that the linear area of the skb covers the checksum field. The checksum setup code in netback was only doing that pullup in the case when the pseudo header checksum was being recalculated though. This patch makes that pullup unconditional. (I pullup the whole transport header just for simplicity; the requirement is only for the check field but in the case of UDP this is the last field in the header and in the case of TCP it's the last but one). The lack of pullup manifested as failures running Microsoft HCK network tests on a pair of Windows 8 VMs and it has been verified that this patch fixes the problem. Suggested-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11hwmon: HIH-6130: Support I2C bus drivers without I2C_FUNC_SMBUS_QUICKJosé Miguel Gonçalves
Some I2C bus drivers do not allow zero-length data transfers which are required to start a measurement with the HIH6130/1 sensor. Nevertheless, we can overcome this limitation by writing a zero dummy byte. This byte is ignored by the sensor and was verified to be working with the OMAP I2C bus driver in a BeagleBone board. Signed-off-by: José Miguel Gonçalves <jose.goncalves@inov.pt> [Guenter Roeck: Simplified complexity of write_length initialization] Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-12-11net: smc91x: Fix device tree based configuration so it's usableTony Lindgren
Commit 89ce376c6bdc (drivers/net: Use of_match_ptr() macro in smc91x.c) added minimal device tree support to smc91x, but it's not working on many platforms because of the lack of some key configuration bits. Fix the issue by parsing the necessary configuration like the smc911x driver is doing. As most smc91x users seem to use 16-bit access, let's default to that if no reg-io-width is specified. Cc: Nicolas Pitre <nico@fluxnic.net> Cc: Mark Rutland <mark.rutland@arm.com> Cc: netdev@vger.kernel.org Cc: devicetree@vger.kernel.org Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11udp: ipv4: fix potential use after free in udp_v4_early_demux()Eric Dumazet
pskb_may_pull() can reallocate skb->head, we need to move the initialization of iph and uh pointers after its call. Fixes: 421b3885bf6d ("udp: ipv4: Add udp early demux") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Shawn Bohrer <sbohrer@rgmadvisors.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11macvtap: signal truncated packetsJason Wang
macvtap_put_user() never return a value grater than iov length, this in fact bypasses the truncated checking in macvtap_recvmsg(). Fix this by always returning the size of packet plus the possible vlan header to let the trunca checking work. Cc: Vlad Yasevich <vyasevich@gmail.com> Cc: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11tun: unbreak truncated packet signallingJason Wang
Commit 6680ec68eff47d36f67b4351bc9836fd6cba9532 (tuntap: hardware vlan tx support) breaks the truncated packet signal by nev return a length greater than iov length in tun_put_user(). This patch fixes by always return the length of packet plus possible vlan header. Caller can detect the truncated packet by comparing the return value and the size of io length. Cc: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11net: sched: htb: fix the calculation of quantumYang Yingliang
Now, 32bit rates may be not the true rate. So use rate_bytes_ps which is from max(rate32, rate64) to calcualte quantum. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11net: sched: tbf: fix the calculation of max_sizeYang Yingliang
Current max_size is caluated from rate table. Now, the rate table has been replaced and it's wrong to caculate max_size based on this rate table. It can lead wrong calculation of max_size. The burst in kernel may be lower than user asked, because burst may gets some loss when transform it to buffer(E.g. "burst 40kb rate 30mbit/s") and it seems we cannot avoid this loss. Burst's value(max_size) based on rate table may be equal user asked. If a packet's length is max_size, this packet will be stalled in tbf_dequeue() because its length is above the burst in kernel so that it cannot get enough tokens. The max_size guards against enqueuing packet sizes above q->buffer "time" in tbf_enqueue(). To make consistent with the calculation of tokens, this patch add a helper psched_ns_t2l() to calculate burst(max_size) directly to fix this problem. After this fix, we can support to using 64bit rates to calculate burst as well. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11micrel: add support for KSZ8041RNLISergei Shtylyov
Renesas R-Car development boards use KSZ8041RNLI PHY which for some reason has ID of 0x00221537 that is not documented for KSZ8041-family PHYs and does not match the documented ID of 0x0022151x (where 'x' is the revision). We have to add the new #define PHY_ID_* and new ksphy_driver[] entry, almost the same as KSZ8041 one, differing only in the 'phy_id' and 'name' fields. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless John W. Linville says: ==================== Just one patch this time -- a fix from Felix Fietkau to fix the duration calculation for non-aggregated packets in ath9k. This is a small change and it is obviously specific to ath9k. Please let me know if there are problems! ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11MAINTAINERS: Add DesignWare, i.MX6, Armada, R-Car PCI host maintainersBjorn Helgaas
Add entries for PCI host controller drivers in drivers/pci/host/. Signed-off-by: Mohit Kumar <mohit.kumar@st.com> # DESIGNWARE Signed-off-by: Pratyush Anand <pratyush.anand@st.com> # DESIGNWARE Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> # R-CAR Double-Plus-Acked-by: Jason Cooper <jason@lakedaemon.net> # MVEBU Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Richard Zhu <r65037@freescale.com> # IMX6
2013-12-11Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2013-12-11ALSA: hda - Add static DAC/pin mapping for AD1986A codecTakashi Iwai
AD1986A codec is a pretty old codec and has really many hidden restrictions. One of such is that each DAC is dedicated to certain pin although there are possible connections. Currently, the generic parser tries to assign individual DACs as much as possible, and this lead to two bad situations: connections where the sound actually doesn't work, and connections conflicting other channels. We may fix this by trying to find the best connections more harder, but as of now, it's easier to give some hints for paired DAC/pin connections and honor them if available, since such a hint is needed only for specific codecs (right now only AD1986A, and there will be unlikely any others in future). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64971 Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=66621 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-11ALSA: hda - One more Dell headset detection quirkHui Wang
On the Dell machines with codec whose Subsystem Id is 0x10280624, no external microphone can be detected when plugging a 3-ring headset. If we add "model=dell-headset-multi" for the snd-hda-intel.ko, the problem will disappear. BugLink: https://bugs.launchpad.net/bugs/1259790 Cc: David Henningsson <david.henningsson@canonical.com> Cc: stable@vger.kernel.org Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-11ALSA: hda - hdmi: Fix IEC958 ctl indexes for some simple HDMI devicesAnssi Hannula
In case a single HDA card has both HDMI and S/PDIF outputs, the S/PDIF outputs will have their IEC958 controls created starting from index 16 and the HDMI controls will be created starting from index 0. However, HDMI simple_playback_build_controls() as used by old VIA and NVIDIA codecs incorrectly requests the IEC958 controls to be created with an S/PDIF type instead of HDMI. In case the card has other codecs that have HDMI outputs, the controls will be created with wrong index=16, causing them to e.g. be unreachable by the ALSA "hdmi" alias. Fix that by making simple_playback_build_controls() request controls with HDMI indexes. Not many cards have an affected configuration, but e.g. ASUS M3N78-VM contains an integrated NVIDIA HDA "card" with: - a VIA codec that has, among others, an S/PDIF pin incorrectly labelled as an HDMI pin, and - an NVIDIA MCP7x HDMI codec. Reported-by: MysterX on #openelec Tested-by: MysterX on #openelec Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Cc: <stable@vger.kernel.org> # 3.8+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-10udp: ipv4: fix an use after free in __udp4_lib_rcv()Eric Dumazet
Dave Jones reported a use after free in UDP stack : [ 5059.434216] ========================= [ 5059.434314] [ BUG: held lock freed! ] [ 5059.434420] 3.13.0-rc3+ #9 Not tainted [ 5059.434520] ------------------------- [ 5059.434620] named/863 is freeing memory ffff88005e960000-ffff88005e96061f, with a lock still held there! [ 5059.434815] (slock-AF_INET){+.-...}, at: [<ffffffff8149bd21>] udp_queue_rcv_skb+0xd1/0x4b0 [ 5059.435012] 3 locks held by named/863: [ 5059.435086] #0: (rcu_read_lock){.+.+..}, at: [<ffffffff8143054d>] __netif_receive_skb_core+0x11d/0x940 [ 5059.435295] #1: (rcu_read_lock){.+.+..}, at: [<ffffffff81467a5e>] ip_local_deliver_finish+0x3e/0x410 [ 5059.435500] #2: (slock-AF_INET){+.-...}, at: [<ffffffff8149bd21>] udp_queue_rcv_skb+0xd1/0x4b0 [ 5059.435734] stack backtrace: [ 5059.435858] CPU: 0 PID: 863 Comm: named Not tainted 3.13.0-rc3+ #9 [loadavg: 0.21 0.06 0.06 1/115 1365] [ 5059.436052] Hardware name: /D510MO, BIOS MOPNV10J.86A.0175.2010.0308.0620 03/08/2010 [ 5059.436223] 0000000000000002 ffff88007e203ad8 ffffffff8153a372 ffff8800677130e0 [ 5059.436390] ffff88007e203b10 ffffffff8108cafa ffff88005e960000 ffff88007b00cfc0 [ 5059.436554] ffffea00017a5800 ffffffff8141c490 0000000000000246 ffff88007e203b48 [ 5059.436718] Call Trace: [ 5059.436769] <IRQ> [<ffffffff8153a372>] dump_stack+0x4d/0x66 [ 5059.436904] [<ffffffff8108cafa>] debug_check_no_locks_freed+0x15a/0x160 [ 5059.437037] [<ffffffff8141c490>] ? __sk_free+0x110/0x230 [ 5059.437147] [<ffffffff8112da2a>] kmem_cache_free+0x6a/0x150 [ 5059.437260] [<ffffffff8141c490>] __sk_free+0x110/0x230 [ 5059.437364] [<ffffffff8141c5c9>] sk_free+0x19/0x20 [ 5059.437463] [<ffffffff8141cb25>] sock_edemux+0x25/0x40 [ 5059.437567] [<ffffffff8141c181>] sock_queue_rcv_skb+0x81/0x280 [ 5059.437685] [<ffffffff8149bd21>] ? udp_queue_rcv_skb+0xd1/0x4b0 [ 5059.437805] [<ffffffff81499c82>] __udp_queue_rcv_skb+0x42/0x240 [ 5059.437925] [<ffffffff81541d25>] ? _raw_spin_lock+0x65/0x70 [ 5059.438038] [<ffffffff8149bebb>] udp_queue_rcv_skb+0x26b/0x4b0 [ 5059.438155] [<ffffffff8149c712>] __udp4_lib_rcv+0x152/0xb00 [ 5059.438269] [<ffffffff8149d7f5>] udp_rcv+0x15/0x20 [ 5059.438367] [<ffffffff81467b2f>] ip_local_deliver_finish+0x10f/0x410 [ 5059.438492] [<ffffffff81467a5e>] ? ip_local_deliver_finish+0x3e/0x410 [ 5059.438621] [<ffffffff81468653>] ip_local_deliver+0x43/0x80 [ 5059.438733] [<ffffffff81467f70>] ip_rcv_finish+0x140/0x5a0 [ 5059.438843] [<ffffffff81468926>] ip_rcv+0x296/0x3f0 [ 5059.438945] [<ffffffff81430b72>] __netif_receive_skb_core+0x742/0x940 [ 5059.439074] [<ffffffff8143054d>] ? __netif_receive_skb_core+0x11d/0x940 [ 5059.442231] [<ffffffff8108c81d>] ? trace_hardirqs_on+0xd/0x10 [ 5059.442231] [<ffffffff81430d83>] __netif_receive_skb+0x13/0x60 [ 5059.442231] [<ffffffff81431c1e>] netif_receive_skb+0x1e/0x1f0 [ 5059.442231] [<ffffffff814334e0>] napi_gro_receive+0x70/0xa0 [ 5059.442231] [<ffffffffa01de426>] rtl8169_poll+0x166/0x700 [r8169] [ 5059.442231] [<ffffffff81432bc9>] net_rx_action+0x129/0x1e0 [ 5059.442231] [<ffffffff810478cd>] __do_softirq+0xed/0x240 [ 5059.442231] [<ffffffff81047e25>] irq_exit+0x125/0x140 [ 5059.442231] [<ffffffff81004241>] do_IRQ+0x51/0xc0 [ 5059.442231] [<ffffffff81542bef>] common_interrupt+0x6f/0x6f We need to keep a reference on the socket, by using skb_steal_sock() at the right place. Note that another patch is needed to fix a race in udp_sk_rx_dst_set(), as we hold no lock protecting the dst. Fixes: 421b3885bf6d ("udp: ipv4: Add udp early demux") Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Shawn Bohrer <sbohrer@rgmadvisors.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10Merge branch 'sctp'David S. Miller
Wang Weidong says: ==================== sctp: check the rto_min and rto_max v6 -> v7: -patch2: fix the whitespace issues which pointed out by Daniel v5 -> v6: split the v5' first patch to patch1 and patch2, and remove the macro in constants.h -patch1: do rto_min/max socket option handling in its own patch, and fix the check of rto_min/max. -patch2: do rto_min/max sysctl handling in its own patch. -patch3: add Suggested-by Daniel. v4 -> v5: - patch1: add marco in constants.h and fix up spacing as suggested by Daniel - patch2: add a patch for fix up do_hmac_alg for according to do_rto_min[max] v3 -> v4: -patch1: fix use init_net directly which suggested by Vlad. v2 -> v3: -patch1: add proc_handler for check rto_min and rto_max which suggested by Vlad v1 -> v2: -patch1: fix the From Name which pointed out by David, and add the ACK by Neil ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10sctp: fix up a spacingwangweidong
fix up spacing of proc_sctp_do_hmac_alg for according to the proc_sctp_do_rto_min[max] in sysctl.c Suggested-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10sctp: add check rto_min and rto_max in sysctlwangweidong
rto_min should be smaller than rto_max while rto_max should be larger than rto_min. Add two proc_handler for the checking. Suggested-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10sctp: check the rto_min and rto_max in setsockoptwangweidong
When we set 0 to rto_min or rto_max, just not change the value. Also we should check the rto_min > rto_max. Suggested-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10ipv6: do not erase dst address with flow label destinationFlorent Fourcot
This patch is following b579035ff766c9412e2b92abf5cab794bff102b6 "ipv6: remove old conditions on flow label sharing" Since there is no reason to restrict a label to a destination, we should not erase the destination value of a socket with the value contained in the flow label storage. This patch allows to really have the same flow label to more than one destination. Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr> Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10sctp: properly latch and use autoclose value from sock to associationNeil Horman
Currently, sctp associations latch a sockets autoclose value to an association at association init time, subject to capping constraints from the max_autoclose sysctl value. This leads to an odd situation where an application may set a socket level autoclose timeout, but sliently sctp will limit the autoclose timeout to something less than that. Fix this by modifying the autoclose setsockopt function to check the limit, cap it and warn the user via syslog that the timeout is capped. This will allow getsockopt to return valid autoclose timeout values that reflect what subsequent associations actually use. While were at it, also elimintate the assoc->autoclose variable, it duplicates whats in the timeout array, which leads to multiple sources for the same information, that may differ (as the former isn't subject to any capping). This gives us the timeout information in a canonical place and saves some space in the association structure as well. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> CC: Wang Weidong <wangweidong1@huawei.com> CC: David Miller <davem@davemloft.net> CC: Vlad Yasevich <vyasevich@gmail.com> CC: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10Merge branch 'tipc'David S. Miller
Jon Maloy says: ==================== tipc: corrections related to tasklet job mechanism These commits correct two bugs related to tipc' service for launching functions for asynchronous execution in a separate tasklet. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10tipc: protect handler_enabled variable with qitem_lock spin lockYing Xue
'handler_enabled' is a global flag indicating whether the TIPC signal handling service is enabled or not. The lack of lock protection for this flag incurs a risk for contention, so that a tipc_k_signal() call might queue a signal handler to a destroyed signal queue, with unpredictable results. To correct this, we let the already existing 'qitem_lock' protect the flag, as it already does with the queue itself. This way, we ensure that the flag always is consistent across all cores. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10tipc: correct the order of stopping services at rmmodJon Paul Maloy
The 'signal handler' service in TIPC is a mechanism that makes it possible to postpone execution of functions, by launcing them into a job queue for execution in a separate tasklet, independent of the launching execution thread. When we do rmmod on the tipc module, this service is stopped after the network service. At the same time, the stopping of the network service may itself launch jobs for execution, with the risk that these functions may be scheduled for execution after the data structures meant to be accessed by the job have already been deleted. We have seen this happen, most often resulting in an oops. This commit ensures that the signal handler is the very first to be stopped when TIPC is shut down, so there are no surprises during the cleanup of the other services. Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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