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2016-04-21fm10k: fix possible null pointer deref after kcallocJacob Keller2-18/+22
When writing a new default redirection table, we needed to populate a new RSS table using ethtool_rxfh_indir_default. We populated this table into a region of memory allocated using kcalloc, but never checked this for NULL. Fix this by moving the default table generation into fm10k_write_reta. If this function is passed a table, use it. Otherwise, generate the default table using ethtool_rxfh_indir_default, 4 at at time. Fixes: 0ea7fae44094 ("fm10k: use ethtool_rxfh_indir_default for default redirection table") Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: Reset multicast mode when deleting lportNgai-Mint Kwan1-0/+4
Deleting lport when multicast mode is configured to FM10K_XCAST_MODE_ALLMULTI or FM10K_XCAST_MODE_PROMISC will result in generating orphaned multicast-group entries in the switch manager. Before deleting the lport, reset multicast mode to FM10K_XCAST_MODE_NONE to flush out these multicast-group entries. Signed-off-by: Ngai-Mint Kwan <ngai-mint.kwan@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: update comment regarding reserved bits checkJacob Keller1-1/+1
The original comment may be read incorrectly as referring to checking the *entire* length is zero. However, it merely checks only the reserved bits of both length and reserved in a small amount of code. Update the comment to indicate this is a clever trick and clearly spell out that it only checks the reserve bits. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: use different name than FM10K_VLAN_CLEAR for override bitJacob Keller3-3/+8
Use a new #define FM10K_VLAN_OVERRIDE even though we're using the exact same bit. The reason for this is clarity in the code, otherwise you can read FM10K_VLAN_CLEAR and think it should be removed. Also add a comment explaining why the FM10K_VLAN_OVERRIDE bit is set. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: use 8bit notation instead of 10bit notation for diagramJacob Keller1-2/+2
The diagram represents bit layout of the multi-bit VLAN update message format. Typically these diagrams are drawn using some power of 2 as the base, to more easily grasp where fields split. Although the numbers above can make it somewhat easy to understand which bit you're looking at, it makes the break points not line up. Re-draw the numbers using base 8, and mark the bit values every 8 bits at the top. This should make it more easy to grasp the table quickly. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: fix documentation of fm10k_tlv_parse_attrJacob Keller1-8/+10
fm10k_tlv_parse_attr is supposed to return FM10K_NOT_IMPLEMENTED for any TLV who's attribute id lies outside the range of results. It does not do this today. In addition, the documentation does not indicate that other attributes which are not implemented for a given TLV will be silently ignored. Fix this. Clean up the logic so that we don't rely on the fact that FM10K_NOT_IMPLEMENTED is greater than zero, as this can easily cause confusion. A future extension could look into some way of reporting unknown TLVs in order to make issues more easily discoverable. We can't just return FM10K_NOT_IMPLEMENTED here because we don't want to drop the entire message if it has an unknown TLV. While here, update the copyright year. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: do not disable PCI device in fm10k_io_error_detectedJacob Keller1-2/+0
fm10k_io_error_detected() does not need to call pci_disable_device(). In the cases where the reset needs to occur, the stack flow will result in calling fm10k_remove() which already disables the PCI device. If we leave the pci_disable_device(), we result in a warning about disabling an already disabled device. Many PCI drivers do call pci_disable_device() in their .error_detected() routines, but it does not appear to be required. In addition, these drivers have a check "is_pci_enabled()" call in their remove routines, which is how they chose to handle the duplicate device disable. This seems incorrect, since the PCI device structure is reference counted. It is very possible that the reference count for the PCI device could be greater than 1. In this case, you would remove the PCI device within the error_detected routine, reducing count to 1, then remove it again in the remove function, reducing it to zero. This would result in yet another disable somewhere else failing. Thus, we shouldn't be using is_pci_enabled() to check for this issue. Instead, just remove the extraneous pci_device_disable() found within the error_detected routine. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: correctly handle LPORT_MAP errorJacob Keller4-1/+35
Currently, any error responses from the switch manager after an LPORT_MAP request are silently ignored. At most the mailbox message will be reported as an error. This can result in unexpected behavior when the switch manager has configured a port with zero bandwidth. Add support for reading the fm10k_swapi_error structure from LPORT_MAP responses. If the message contains the necessary TLV and has a non-zero error code, report link down, clear the dglort_map, and delay the next get_host_state call by a reasonable delay. Also log an error message indicating that the LPORT_MAP request failed. The delay ensures preventing an interrupt storm on the switch manager, and reduces the number of mailbox messages we send in this scenario drastically. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: Fix multicast mode sync issuesNgai-Mint Kwan1-13/+7
Multicast mode checking is no longer a requirement to perform unicast and multicast address syncs. Specifically, a device operating in promiscuous and/or all multicast mode is not excluded. The issue occurs when the netdev is pre-configured to either multicast mode and is enabled for the first time. The multicast-group table in the Switch Manager will be missing obvious multicast entries associated to this netdev. Changes were also made to disallow unicast and multicast syncs with VLAN 0. The Switch Manager considers VLAN 0 to be an invalid entry. Requests with VLAN 0 by the netdev are only generated when the driver is freshly installed and the default VID is not set. Signed-off-by: Ngai-Mint Kwan <ngai-mint.kwan@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: drop 1588 supportJacob Keller12-876/+11
The 1588 support within fm10k does not work correctly with the current version of the switch management software, and likely never worked correctly to begin with. Remove support for PTP/1588. Update copyright year for all these files while we're touching them. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: prevent RCU issues during AER eventsJacob Keller1-1/+10
During an AER action response, we were calling fm10k_close without holding the rtnl_lock() which could lead to possible RCU warnings being produced due to 64bit stat updates among other causes. Similarly, we need rtnl_lock() around fm10k_open during fm10k_io_resume. Follow the same pattern elsewhere in the driver and protect the entire open/close sequence. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: use DRV_SUMMARY to reduce code duplicationJacob Keller1-3/+3
Use DRV_SUMMARY, similar to DRV_VERSION so that we don't have to duplicate the driver summary in multiple places. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: Add support for bulk Tx cleanup & cleanup boolean logicAlexander Duyck1-5/+9
This patch enables bulk free in Tx cleanup for fm10k and cleans up the boolean logic in the polling routines for fm10k in the hopes of avoiding any mix-ups similar to what occurred with i40e and i40evf. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: remove debug-statistics supportJacob Keller1-71/+1
This change fixes an (ab)use of the ethtool stats API, which could result in corrupt memory or misleading stat output. The ethtool stats API is not robust enough to handle varying number of statistics due to how it requests the size and allocates memory. Remove the poorly conceived support originally added for extra debug statistics. In the future, a new stats API may open up the ability to display these statistics. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21fm10k: add helper functions to set strings and data for ethtool statsJacob Keller1-25/+34
Reduce duplicate code and the amount of indentation by adding fm10k_add_stat_strings and fm10k_add_ethtool_stats functions which help add fm10k_stat structures to the ethtool stats callbacks. This helps increase ease of use for future stat additions, and increases code readability. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-21thermal: fix Mediatek thermal controller buildJohannes Berg1-0/+1
At least with CONFIG_COMPILE_TEST, there's no reason to assume that CONFIG_RESET_CONTROLLER is set, but the code for this controller requires it since it calls device_reset(). Make CONFIG_MTK_THERMAL properly depend on CONFIG_RESET_CONTROLLER. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-04-21thermal: consistently use int for trip tempWei Ni2-6/+6
The commit 17e8351a7739 consistently use int for temperature, however it missed a few in trip temperature and thermal_core. In current codes, the trip->temperature used "unsigned long" and zone->temperature used"int", if the temperature is negative value, it will get wrong result when compare temperature with trip temperature. This patch can fix it. Signed-off-by: Wei Ni <wni@nvidia.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-04-21thermal: fix mtk_thermal build dependencyRandy Dunlap1-0/+1
Fix build errors when MTK_THERMAL=y and NVMEM=m by preventing that Kconfig combination. drivers/built-in.o: In function `mtk_thermal_probe': mtk_thermal.c:(.text+0xffa8f): undefined reference to `nvmem_cell_get' mtk_thermal.c:(.text+0xffabe): undefined reference to `nvmem_cell_read' mtk_thermal.c:(.text+0xffac9): undefined reference to `nvmem_cell_put' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: <linux-pm@vger.kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Hanyi Wu <hanyi.wu@mediatek.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-04-21thermal: minor mtk_thermal.c cleanupsRandy Dunlap1-2/+1
Trivial cleanups: - delete one duplicate #include - end email address with closing '>' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Hanyi Wu <hanyi.wu@mediatek.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-04-21thermal: power_allocator: req_range multiplication should be a 64 bit typeJavi Merino1-1/+1
req_range is declared as a u64 to cope with overflows in the multiplication of two u32. As both req_power and power_range are u32, we need to make sure the multiplication is done with u64 types. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Javi Merino <javi.merino@arm.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-04-21thermal: of: add __init attributeJulia Lawall1-2/+2
Add __init attribute on a function that is only called from other __init functions and that is not inlined, at least with gcc version 4.8.4 on an x86 machine with allyesconfig. Currently, the function is put in the .text.unlikely segment. Declaring it as __init will cause it to be put in the .init.text and to disappear after initialization. The result of objdump -x on the function before the change is as follows: 0000000000000086 l F .text.unlikely 0000000000000739 thermal_of_build_thermal_zone And after the change it is as follows: 0000000000000000 l F .init.text 0000000000000734 thermal_of_build_thermal_zone Done with the help of Coccinelle. The semantic patch checks for local static non-init functions that are called from an __init function and are not called from any other function. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-04-21ieee802154: atusb: update my copyright years for this driverStefan Schmidt1-0/+2
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-04-21ieee802154: atusb: implement .set_cca_mode ops callbackStefan Schmidt1-1/+43
Catching up with the stack here and implement CCA mode setting. Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-04-21ieee802154: atusb: implement .set_cca_ed_level ops callbackStefan Schmidt1-1/+26
Catching up with the stack here and implement CCA ED level setting. Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-04-21ieee802154: atusb: implement .set_csma_params ops callbackStefan Schmidt1-1/+19
Catching up with the stack here and implement CSMA parameter setting. Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-04-21Input: twl4030-vibra - do not reparent to grandparentDmitry Torokhov1-1/+0
For devm-managed input devices we should not modify input device's parent, otherwise automatic release of resources will not work properly. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-04-21Input: twl6040-vibra - do not reparent to grandparentDmitry Torokhov1-1/+0
For devm-managed input devices we should not modify input device's parent, otherwise automatic release of resources will not work properly. Tested-by: "H. Nikolaus Schaller" <hns@goldelico.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-04-20rtnetlink: add new RTM_GETSTATS message to dump link statsRoopa Prabhu4-1/+189
This patch adds a new RTM_GETSTATS message to query link stats via netlink from the kernel. RTM_NEWLINK also dumps stats today, but RTM_NEWLINK returns a lot more than just stats and is expensive in some cases when frequent polling for stats from userspace is a common operation. RTM_GETSTATS is an attempt to provide a light weight netlink message to explicity query only link stats from the kernel on an interface. The idea is to also keep it extensible so that new kinds of stats can be added to it in the future. This patch adds the following attribute for NETDEV stats: struct nla_policy ifla_stats_policy[IFLA_STATS_MAX + 1] = { [IFLA_STATS_LINK_64] = { .len = sizeof(struct rtnl_link_stats64) }, }; Like any other rtnetlink message, RTM_GETSTATS can be used to get stats of a single interface or all interfaces with NLM_F_DUMP. Future possible new types of stat attributes: link af stats: - IFLA_STATS_LINK_IPV6 (nested. for ipv6 stats) - IFLA_STATS_LINK_MPLS (nested. for mpls/mdev stats) extended stats: - IFLA_STATS_LINK_EXTENDED (nested. extended software netdev stats like bridge, vlan, vxlan etc) - IFLA_STATS_LINK_HW_EXTENDED (nested. extended hardware stats which are available via ethtool today) This patch also declares a filter mask for all stat attributes. User has to provide a mask of stats attributes to query. filter mask can be specified in the new hdr 'struct if_stats_msg' for stats messages. Other important field in the header is the ifindex. This api can also include attributes for global stats (eg tcp) in the future. When global stats are included in a stats msg, the ifindex in the header must be zero. A single stats message cannot contain both global and netdev specific stats. To easily distinguish them, netdev specific stat attributes name are prefixed with IFLA_STATS_LINK_ Without any attributes in the filter_mask, no stats will be returned. This patch has been tested with mofified iproute2 ifstat. Suggested-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20net: nla_align_64bit() needs to test the right pointer.David S. Miller1-1/+1
Netlink messages are appended, one object at a time, to the end of the SKB. Therefore we need to test skb_tail_pointer() not skb->data for alignment. Fixes: 35c5845957c7 ("net: Add helpers for 64-bit aligning netlink attributes.") Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20Merge branch 'linus' of ↵Linus Torvalds4-8/+14
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "This fixes the following issues: - Incorrect output buffer size calculation in rsa-pkcs1pad - Uninitialised padding bytes on exported state in ccp driver - Potentially freed pointer used on completion callback in sha1-mb" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: ccp - Prevent information leakage on export crypto: sha1-mb - use corrcet pointer while completing jobs crypto: rsa-pkcs1pad - fix dst len
2016-04-20Revert "Prevent NUll pointer dereference with two PHYs on cpsw"Andrew Goodbody1-16/+15
This reverts commit cfe255600154f0072d4a8695590dbd194dfd1aeb This can result in a "Unable to handle kernel paging request" during boot. This was due to using an uninitialised struct member, data->slaves. Signed-off-by: Andrew Goodbody <andrew.goodbody@cambrionix.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20net: fix HAVE_EFFICIENT_UNALIGNED_ACCESS typosEric Dumazet1-8/+11
HAVE_EFFICIENT_UNALIGNED_ACCESS needs CONFIG_ prefix. Also add a comment in nla_align_64bit() explaining we have to add a padding if current skb->data is aligned, as it certainly can be confusing. Fixes: 35c5845957c7 ("net: Add helpers for 64-bit aligning netlink attributes.") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20net/hsr: Fixed version field in ENUMPeter Heise1-1/+1
New field (IFLA_HSR_VERSION) was added in the middle of an existing ENUM and would break kernel ABI, therefore moved to the end. Reported by Stephen Hemminger. Signed-off-by: Peter Heise <peter.heise@airbus.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20Bluetooth: vhci: Fix race at creating hci deviceTakashi Iwai1-6/+17
hci_vhci driver creates a hci device object dynamically upon each HCI_VENDOR_PKT write. Although it checks the already created object and returns an error, it's still racy and may build multiple hci_dev objects concurrently when parallel writes are performed, as the device tracks only a single hci_dev object. This patch introduces a mutex to protect against the concurrent device creations. Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-04-20at86rf230: increase sleep to off timingsAlexander Aring1-3/+3
I expierenced when setting channel while sleep mode it didn't changed the channel inside the hardware registers. Then I got another report of an user which has similar issues. I increased the sleep to off state change timing, which is according at86rf233 at maximum 1000 us. After this change I got no similar effects again. I tried another option to wait on AWAKE_END irq, which can be used to wait until the transceiver is awaked. I tested it and the IRQ took 4 seconds after starting state change. I don't believe it takes 4 seconds to go into the TRX_OFF state from SLEEP state. The alternative is to increase the timings which seems to work. Cc: Oleg Hahm <oliver.hahm@inria.fr> Signed-off-by: Alexander Aring <aar@pengutronix.de> Reviewed-by: Stefan Schmidt<stefan@osg.samsung.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-04-20futex: Handle unlock_pi race gracefullySebastian Andrzej Siewior1-3/+22
If userspace calls UNLOCK_PI unconditionally without trying the TID -> 0 transition in user space first then the user space value might not have the waiters bit set. This opens the following race: CPU0 CPU1 uval = get_user(futex) lock(hb) lock(hb) futex |= FUTEX_WAITERS .... unlock(hb) cmpxchg(futex, uval, newval) So the cmpxchg fails and returns -EINVAL to user space, which is wrong because the futex value is valid. To handle this (yes, yet another) corner case gracefully, check for a flag change and retry. [ tglx: Massaged changelog and slightly reworked implementation ] Fixes: ccf9e6a80d9e ("futex: Make unlock_pi more robust") Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: stable@vger.kernel.org Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Darren Hart <dvhart@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1460723739-5195-1-git-send-email-bigeasy@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-04-20crypto: talitos - fix AEAD tcrypt testsHoria Geant?1-16/+30
After conversion to new AEAD interface, tcrypt tests fail as follows: [...] [ 1.145414] alg: aead: Test 1 failed on encryption for authenc-hmac-sha1-cbc-aes-talitos [ 1.153564] 00000000: 53 69 6e 67 6c 65 20 62 6c 6f 63 6b 20 6d 73 67 [ 1.160041] 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 1.166509] 00000020: 00 00 00 00 [...] Fix them by providing the correct cipher in & cipher out pointers, i.e. must skip over associated data in src and dst S/G. While here, fix a problem with the HW S/G table index usage: tbl_off must be updated after the pointer to the table entries is set. Cc: <stable@vger.kernel.org> # 4.3+ Fixes: aeb4c132f33d ("crypto: talitos - Convert to new AEAD interface") Reported-by: Jonas Eymann <J.Eymann@gmx.net> Signed-off-by: Horia Geant? <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-20crypto: talitos - fix crash in talitos_cra_init()Jonas Eymann1-14/+27
Conversion of talitos driver to the new AEAD interface hasn't been properly tested. AEAD algorithms crash in talitos_cra_init as follows: [...] [ 1.141095] talitos ffe30000.crypto: hwrng [ 1.145381] Unable to handle kernel paging request for data at address 0x00000058 [ 1.152913] Faulting instruction address: 0xc02accc0 [ 1.157910] Oops: Kernel access of bad area, sig: 11 [#1] [ 1.163315] SMP NR_CPUS=2 P1020 RDB [ 1.166810] Modules linked in: [ 1.169875] CPU: 0 PID: 1007 Comm: cryptomgr_test Not tainted 4.4.6 #1 [ 1.176415] task: db5ec200 ti: db4d6000 task.ti: db4d6000 [ 1.181821] NIP: c02accc0 LR: c02acd18 CTR: c02acd04 [ 1.186793] REGS: db4d7d30 TRAP: 0300 Not tainted (4.4.6) [ 1.192457] MSR: 00029000 <CE,EE,ME> CR: 95009359 XER: e0000000 [ 1.198585] DEAR: 00000058 ESR: 00000000 GPR00: c017bdc0 db4d7de0 db5ec200 df424b48 00000000 00000000 df424bfc db75a600 GPR08: df424b48 00000000 db75a628 db4d6000 00000149 00000000 c0044cac db5acda0 GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 00000400 df424940 GPR24: df424900 00003083 00000400 c0180000 db75a640 c03e9f84 df424b40 df424b48 [ 1.230978] NIP [c02accc0] talitos_cra_init+0x28/0x6c [ 1.236039] LR [c02acd18] talitos_cra_init_aead+0x14/0x28 [ 1.241443] Call Trace: [ 1.243894] [db4d7de0] [c03e9f84] 0xc03e9f84 (unreliable) [ 1.249322] [db4d7df0] [c017bdc0] crypto_create_tfm+0x5c/0xf0 [ 1.255083] [db4d7e10] [c017beec] crypto_alloc_tfm+0x98/0xf8 [ 1.260769] [db4d7e40] [c0186a20] alg_test_aead+0x28/0xc8 [ 1.266181] [db4d7e60] [c0186718] alg_test+0x260/0x2e0 [ 1.271333] [db4d7ee0] [c0183860] cryptomgr_test+0x30/0x54 [ 1.276843] [db4d7ef0] [c0044d80] kthread+0xd4/0xd8 [ 1.281741] [db4d7f40] [c000e4a4] ret_from_kernel_thread+0x5c/0x64 [ 1.287930] Instruction dump: [ 1.290902] 38600000 4e800020 81230028 7c681b78 81490010 38e9ffc0 3929ffe8 554a073e [ 1.298691] 2b8a000a 7d474f9e 812a0008 91230030 <80e90058> 39270060 7c0004ac 7cc04828 Cc: <stable@vger.kernel.org> # 4.3+ Fixes: aeb4c132f33d ("crypto: talitos - Convert to new AEAD interface") Signed-off-by: Jonas Eymann <J.Eymann@gmx.net> Fix typo - replaced parameter of __crypto_ahash_alg(): s/tfm/alg Remove checkpatch warnings. Add commit message. Signed-off-by: Horia Geant? <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-20arm64: spin-table: add missing of_node_put()Masahiro Yamada1-5/+6
Since of_get_cpu_node() increments refcount, the node should be put. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-04-20ALSA: hda - add PCI ID for Intel Broxton-TLu, Han1-0/+3
Add HD Audio Device PCI ID for the Intel Broxton-T platform. It is an HDA Intel PCH controller. Signed-off-by: Lu, Han <han.lu@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-20usb: gadget: f_fs: Fix use-after-freeLars-Peter Clausen1-3/+2
When using asynchronous read or write operations on the USB endpoints the issuer of the IO request is notified by calling the ki_complete() callback of the submitted kiocb when the URB has been completed. Calling this ki_complete() callback will free kiocb. Make sure that the structure is no longer accessed beyond that point, otherwise undefined behaviour might occur. Fixes: 2e4c7553cd6f ("usb: gadget: f_fs: add aio support") Cc: <stable@vger.kernel.org> # v3.15+ Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-20VSOCK: Only check error on skb_recv_datagram when skb is NULLJorgen Hansen1-5/+2
If skb_recv_datagram returns an skb, we should ignore the err value returned. Otherwise, datagram receives will return EAGAIN when they have to wait for a datagram. Acked-by: Adit Ranadive <aditr@vmware.com> Signed-off-by: Jorgen Hansen <jhansen@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20net: dsa: kill circular reference with slave privVivien Didelot2-10/+4
The dsa_slave_priv structure does not need a pointer to its net_device. Kill it. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20Merge branch 'bpf_event_output'David S. Miller5-1/+48
Daniel Borkmann says: ==================== BPF updates This minor set adds a new helper bpf_event_output() for eBPF cls/act program types which allows to pass events to user space applications. For details, please see individual patches. v1 -> v2: - Address kbuild bot found compile issue in patch 2 - Rest as is ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20bpf: add event output helper for notifications/sampling/loggingDaniel Borkmann4-0/+38
This patch adds a new helper for cls/act programs that can push events to user space applications. For networking, this can be f.e. for sampling, debugging, logging purposes or pushing of arbitrary wake-up events. The idea is similar to a43eec304259 ("bpf: introduce bpf_perf_event_output() helper") and 39111695b1b8 ("samples: bpf: add bpf_perf_event_output example"). The eBPF program utilizes a perf event array map that user space populates with fds from perf_event_open(), the eBPF program calls into the helper f.e. as skb_event_output(skb, &my_map, BPF_F_CURRENT_CPU, raw, sizeof(raw)) so that the raw data is pushed into the fd f.e. at the map index of the current CPU. User space can poll/mmap/etc on this and has a data channel for receiving events that can be post-processed. The nice thing is that since the eBPF program and user space application making use of it are tightly coupled, they can define their own arbitrary raw data format and what/when they want to push. While f.e. packet headers could be one part of the meta data that is being pushed, this is not a substitute for things like packet sockets as whole packet is not being pushed and push is only done in a single direction. Intention is more of a generically usable, efficient event pipe to applications. Workflow is that tc can pin the map and applications can attach themselves e.g. after cls/act setup to one or multiple map slots, demuxing is done by the eBPF program. Adding this facility is with minimal effort, it reuses the helper introduced in a43eec304259 ("bpf: introduce bpf_perf_event_output() helper") and we get its functionality for free by overloading its BPF_FUNC_ identifier for cls/act programs, ctx is currently unused, but will be made use of in future. Example will be added to iproute2's BPF example files. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20bpf, trace: add BPF_F_CURRENT_CPU flag for bpf_perf_event_outputDaniel Borkmann2-1/+10
Add a BPF_F_CURRENT_CPU flag to optimize the use-case where user space has per-CPU ring buffers and the eBPF program pushes the data into the current CPU's ring buffer which saves us an extra helper function call in eBPF. Also, make sure to properly reserve the remaining flags which are not used. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20arcnet: com90xx: add __init attributeJulia Lawall1-1/+1
Add __init attribute on a function that is only called from other __init functions and that is not inlined, at least with gcc version 4.8.4 on an x86 machine with allyesconfig. Currently, the function is put in the .text.unlikely segment. Declaring it as __init will cause it to be put in the .init.text and to disappear after initialization. The result of objdump -x on the function before the change is as follows: 0000000000000000 l F .text.unlikely 00000000000000bf check_mirror And after the change it is as follows: 0000000000000000 l F .init.text 00000000000000ba check_mirror Done with the help of Coccinelle. The semantic patch checks for local static non-init functions that are called from an __init function and are not called from any other function. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Michael Grzeschik <mgr@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20net/ipv6/addrconf: fix sysctl table indentationKonstantin Khlebnikov1-309/+307
Separated from previous patch for readability. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20net/ipv6/addrconf: simplify sysctl registrationKonstantin Khlebnikov2-27/+19
Struct ctl_table_header holds pointer to sysctl table which could be used for freeing it after unregistration. IPv4 sysctls already use that. Remove redundant NULL assignment: ndev allocated using kzalloc. This also saves some bytes: sysctl table could be shorter than DEVCONF_MAX+1 if some options are disable in config. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-20cls_cgroup: get sk_classid only from full socketsKonstantin Khlebnikov1-2/+5
skb->sk could point to timewait or request socket which has no sk_classid. Detected as "BUG: KASAN: slab-out-of-bounds in cls_cgroup_classify". Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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