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2017-01-25dmaengine: dw: add support of iDMA 32-bit hardwareAndy Shevchenko
iDMA 32-bit is Intel designed DMA controller that behaves like Synopsys Designware DMA. This patch adds a support of the new Intel hardware. Due to iDMA 32-bit has no autoconfiguration the platform code must provide a platform data to dw_dma_probe(). By default full FIFO (1024 bytes) is assigned to channel 0. Here we slice FIFO on equal parts between channels for iDMA 32-bit case. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-01-25dmaengine: dw: register IRQ and DMA pool with instance IDAndy Shevchenko
It is really useful not only for debugging to have an IRQ line and DMA pool labeled with driver and its instance ID. Do this for DesignWare DMA driver. All current users of this IP would be enhanced later on. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-01-25drm/dp: Store drm_device in MST topology managerDhinakaran Pandiyan
struct drm_dp_mst_topology_mgr currently stores a pointer to struct dev. Changing this to instead hold a pointer to drm_device is more useful as it gives access to DRM structures. This also makes it consistent with other DRM structures like drm_crtc, drm_connector etc. Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1485301777-3465-2-git-send-email-dhinakaran.pandiyan@intel.com
2017-01-25nsfs: Add an ioctl() to return the namespace typeMichael Kerrisk (man-pages)
Linux 4.9 added two ioctl() operations that can be used to discover: * the parental relationships for hierarchical namespaces (user and PID) [NS_GET_PARENT] * the user namespaces that owns a specified non-user-namespace [NS_GET_USERNS] For no good reason that I can glean, NS_GET_USERNS was made synonymous with NS_GET_PARENT for user namespaces. It might have been better if NS_GET_USERNS had returned an error if the supplied file descriptor referred to a user namespace, since it suggests that the caller may be confused. More particularly, if it had generated an error, then I wouldn't need the new ioctl() operation proposed here. (On the other hand, what I propose here may be more generally useful.) I would like to write code that discovers namespace relationships for the purpose of understanding the namespace setup on a running system. In particular, given a file descriptor (or pathname) for a namespace, N, I'd like to obtain the corresponding user namespace. Namespace N might be a user namespace (in which case my code would just use N) or a non-user namespace (in which case my code will use NS_GET_USERNS to get the user namespace associated with N). The problem is that there is no way to tell the difference by looking at the file descriptor (and if I try to use NS_GET_USERNS on an N that is a user namespace, I get the parent user namespace of N, which is not what I want). This patch therefore adds a new ioctl(), NS_GET_NSTYPE, which, given a file descriptor that refers to a user namespace, returns the namespace type (one of the CLONE_NEW* constants). Signed-off-by: Michael Kerrisk <mtk-manpages@gmail.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2017-01-24mm, page_alloc: fix check for NULL preferred_zoneVlastimil Babka
Patch series "fix premature OOM regression in 4.7+ due to cpuset races". This is v2 of my attempt to fix the recent report based on LTP cpuset stress test [1]. The intention is to go to stable 4.9 LTSS with this, as triggering repeated OOMs is not nice. That's why the patches try to be not too intrusive. Unfortunately why investigating I found that modifying the testcase to use per-VMA policies instead of per-task policies will bring the OOM's back, but that seems to be much older and harder to fix problem. I have posted a RFC [2] but I believe that fixing the recent regressions has a higher priority. Longer-term we might try to think how to fix the cpuset mess in a better and less error prone way. I was for example very surprised to learn, that cpuset updates change not only task->mems_allowed, but also nodemask of mempolicies. Until now I expected the parameter to alloc_pages_nodemask() to be stable. I wonder why do we then treat cpusets specially in get_page_from_freelist() and distinguish HARDWALL etc, when there's unconditional intersection between mempolicy and cpuset. I would expect the nodemask adjustment for saving overhead in g_p_f(), but that clearly doesn't happen in the current form. So we have both crazy complexity and overhead, AFAICS. [1] https://lkml.kernel.org/r/CAFpQJXUq-JuEP=QPidy4p_=FN0rkH5Z-kfB4qBvsf6jMS87Edg@mail.gmail.com [2] https://lkml.kernel.org/r/7c459f26-13a6-a817-e508-b65b903a8378@suse.cz This patch (of 4): Since commit c33d6c06f60f ("mm, page_alloc: avoid looking up the first zone in a zonelist twice") we have a wrong check for NULL preferred_zone, which can theoretically happen due to concurrent cpuset modification. We check the zoneref pointer which is never NULL and we should check the zone pointer. Also document this in first_zones_zonelist() comment per Michal Hocko. Fixes: c33d6c06f60f ("mm, page_alloc: avoid looking up the first zone in a zonelist twice") Link: http://lkml.kernel.org/r/20170120103843.24587-2-vbabka@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Ganapatrao Kulkarni <gpkulkarni@gmail.com> Cc: Michal Hocko <mhocko@suse.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-01-24kernel/watchdog: prevent false hardlockup on overloaded systemDon Zickus
On an overloaded system, it is possible that a change in the watchdog threshold can be delayed long enough to trigger a false positive. This can easily be achieved by having a cpu spinning indefinitely on a task, while another cpu updates watchdog threshold. What happens is while trying to park the watchdog threads, the hrtimers on the other cpus trigger and reprogram themselves with the new slower watchdog threshold. Meanwhile, the nmi watchdog is still programmed with the old faster threshold. Because the one cpu is blocked, it prevents the thread parking on the other cpus from completing, which is needed to shutdown the nmi watchdog and reprogram it correctly. As a result, a false positive from the nmi watchdog is reported. Fix this by setting a park_in_progress flag to block all lockups until the parking is complete. Fix provided by Ulrich Obergfell. [akpm@linux-foundation.org: s/park_in_progress/watchdog_park_in_progress/] Link: http://lkml.kernel.org/r/1481041033-192236-1-git-send-email-dzickus@redhat.com Signed-off-by: Don Zickus <dzickus@redhat.com> Reviewed-by: Aaron Tomlin <atomlin@redhat.com> Cc: Ulrich Obergfell <uobergfe@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-01-24memory_hotplug: make zone_can_shift() return a boolean valueYasuaki Ishimatsu
online_{kernel|movable} is used to change the memory zone to ZONE_{NORMAL|MOVABLE} and online the memory. To check that memory zone can be changed, zone_can_shift() is used. Currently the function returns minus integer value, plus integer value and 0. When the function returns minus or plus integer value, it means that the memory zone can be changed to ZONE_{NORNAL|MOVABLE}. But when the function returns 0, there are two meanings. One of the meanings is that the memory zone does not need to be changed. For example, when memory is in ZONE_NORMAL and onlined by online_kernel the memory zone does not need to be changed. Another meaning is that the memory zone cannot be changed. When memory is in ZONE_NORMAL and onlined by online_movable, the memory zone may not be changed to ZONE_MOVALBE due to memory online limitation(see Documentation/memory-hotplug.txt). In this case, memory must not be onlined. The patch changes the return type of zone_can_shift() so that memory online operation fails when memory zone cannot be changed as follows: Before applying patch: # grep -A 35 "Node 2" /proc/zoneinfo Node 2, zone Normal <snip> node_scanned 0 spanned 8388608 present 7864320 managed 7864320 # echo online_movable > memory4097/state # grep -A 35 "Node 2" /proc/zoneinfo Node 2, zone Normal <snip> node_scanned 0 spanned 8388608 present 8388608 managed 8388608 online_movable operation succeeded. But memory is onlined as ZONE_NORMAL, not ZONE_MOVABLE. After applying patch: # grep -A 35 "Node 2" /proc/zoneinfo Node 2, zone Normal <snip> node_scanned 0 spanned 8388608 present 7864320 managed 7864320 # echo online_movable > memory4097/state bash: echo: write error: Invalid argument # grep -A 35 "Node 2" /proc/zoneinfo Node 2, zone Normal <snip> node_scanned 0 spanned 8388608 present 7864320 managed 7864320 online_movable operation failed because of failure of changing the memory zone from ZONE_NORMAL to ZONE_MOVABLE Fixes: df429ac03936 ("memory-hotplug: more general validation of zone during online") Link: http://lkml.kernel.org/r/2f9c3837-33d7-b6e5-59c0-6ca4372b2d84@gmail.com Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Reviewed-by: Reza Arbab <arbab@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-01-24net: Specify the owning module for lwtunnel opsRobert Shearman
Modules implementing lwtunnel ops should not be allowed to unload while there is state alive using those ops, so specify the owning module for all lwtunnel ops. Signed-off-by: Robert Shearman <rshearma@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24RDMA/core: create struct ib_port_cacheJack Wang
As Jason suggested, we have 4 elements for per port arrays, it's better to have a separate structure to represent them. It simplifies code a bit, ~ 30 lines of code less :) Signed-off-by: Jack Wang <jinpu.wang@profitbricks.com> Reviewed-by: Michael Wang <yun.wang@profitbricks.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24netfilter: nf_tables: deconstify walk callback functionPablo Neira Ayuso
The flush operation needs to modify set and element objects, so let's deconstify this. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-01-24netfilter: nft_log: restrict the log prefix length to 127Liping Zhang
First, log prefix will be truncated to NF_LOG_PREFIXLEN-1, i.e. 127, at nf_log_packet(), so the extra part is useless. Second, after adding a log rule with a very very long prefix, we will fail to dump the nft rules after this _special_ one, but acctually, they do exist. For example: # name_65000=$(printf "%0.sQ" {1..65000}) # nft add rule filter output log prefix "$name_65000" # nft add rule filter output counter # nft add rule filter output counter # nft list chain filter output table ip filter { chain output { type filter hook output priority 0; policy accept; } } So now, restrict the log prefix length to NF_LOG_PREFIXLEN-1. Fixes: 96518518cc41 ("netfilter: add nftables") Signed-off-by: Liping Zhang <zlpnobody@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-01-24Merge tag 'v4.10-rc5' into nextDmitry Torokhov
Sync up with mainline to bring up improvements in various subsystems.
2017-01-24RDMA/qedr: Add uapi header qedr-abi.hAmrani, Ram
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24RDMA/core: Add the function ib_mtu_int_to_enumAmrani, Ram
As the functionality to convert the MTU from a number to enum_ib_mtu is ubiquitous, define a dedicated function and remove the duplicated code. Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24SUNRPC: cleanup ida information when removing sunrpc moduleKinglong Mee
After removing sunrpc module, I get many kmemleak information as, unreferenced object 0xffff88003316b1e0 (size 544): comm "gssproxy", pid 2148, jiffies 4294794465 (age 4200.081s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffffb0cfb58a>] kmemleak_alloc+0x4a/0xa0 [<ffffffffb03507fe>] kmem_cache_alloc+0x15e/0x1f0 [<ffffffffb0639baa>] ida_pre_get+0xaa/0x150 [<ffffffffb0639cfd>] ida_simple_get+0xad/0x180 [<ffffffffc06054fb>] nlmsvc_lookup_host+0x4ab/0x7f0 [lockd] [<ffffffffc0605e1d>] lockd+0x4d/0x270 [lockd] [<ffffffffc06061e5>] param_set_timeout+0x55/0x100 [lockd] [<ffffffffc06cba24>] svc_defer+0x114/0x3f0 [sunrpc] [<ffffffffc06cbbe7>] svc_defer+0x2d7/0x3f0 [sunrpc] [<ffffffffc06c71da>] rpc_show_info+0x8a/0x110 [sunrpc] [<ffffffffb044a33f>] proc_reg_write+0x7f/0xc0 [<ffffffffb038e41f>] __vfs_write+0xdf/0x3c0 [<ffffffffb0390f1f>] vfs_write+0xef/0x240 [<ffffffffb0392fbd>] SyS_write+0xad/0x130 [<ffffffffb0d06c37>] entry_SYSCALL_64_fastpath+0x1a/0xa9 [<ffffffffffffffff>] 0xffffffffffffffff I found, the ida information (dynamic memory) isn't cleanup. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Fixes: 2f048db4680a ("SUNRPC: Add an identifier for struct rpc_clnt") Cc: stable@vger.kernel.org # v3.12+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2017-01-24bpf: allow option for setting bpf_l4_csum_replace from scratchDaniel Borkmann
When programs need to calculate the csum from scratch for small UDP packets and use bpf_l4_csum_replace() to feed the result from helpers like bpf_csum_diff(), then we need a flag besides BPF_F_MARK_MANGLED_0 that would ignore the case of current csum being 0, and which would still allow for the helper to set the csum and transform when needed to CSUM_MANGLED_0. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24IB/mlx5: Enable Eth VFs to query their min-inline value for user-spaceOr Gerlitz
For some mlx5 HW models (CX4, CX4Lx), the VF driver needs to put part of the packet headers on the TX descriptor so the e-switch can do proper matching and steering. This is called "min-inline", it's advertized to the VF by the FW and also enforced on them by the HW, such that if they don't obey, their packets are dropped. SRIOV VF libmlx5 instances should take into account the min-inline value of their vports. For that end, we provide this value through the vendor response part of init_ucontext command. The min inline value is reported in a way which will let newer libmlx5 instances realize that they are running over an older kernel and act accordingly (e.g apply some educated guess). Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-01-24net/mlx5: Push min-inline mode resolution helper into the coreOr Gerlitz
So we can use that from the IB driver too in downstream patches. This patch doesn't change any functionality. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-01-24net/mlx5: Add support for setting VF min rateMohamad Haj Yahia
Add support for SRIOV VF min rate guarantee by using the TSAR BW share weights mechanism. The TSAR BW share vport attribute represents the weight of that vport among the other vports weights which means that the actual vport BW percentage is the same vport weight percentage among the total vports weights sum. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-01-24ARCv2: MCIP: update the BCR per current changesVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-01-24net/sched: Introduce sample tc actionYotam Gigi
This action allows the user to sample traffic matched by tc classifier. The sampling consists of choosing packets randomly and sampling them using the psample module. The user can configure the psample group number, the sampling rate and the packet's truncation (to save kernel-user traffic). Example: To sample ingress traffic from interface eth1, one may use the commands: tc qdisc add dev eth1 handle ffff: ingress tc filter add dev eth1 parent ffff: \ matchall action sample rate 12 group 4 Where the first command adds an ingress qdisc and the second starts sampling randomly with an average of one sampled packet per 12 packets on dev eth1 to psample group 4. Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24net: Introduce psample, a new genetlink channel for packet samplingYotam Gigi
Add a general way for kernel modules to sample packets, without being tied to any specific subsystem. This netlink channel can be used by tc, iptables, etc. and allow to standardize packet sampling in the kernel. For every sampled packet, the psample module adds the following metadata fields: PSAMPLE_ATTR_IIFINDEX - the packets input ifindex, if applicable PSAMPLE_ATTR_OIFINDEX - the packet output ifindex, if applicable PSAMPLE_ATTR_ORIGSIZE - the packet's original size, in case it has been truncated during sampling PSAMPLE_ATTR_SAMPLE_GROUP - the packet's sample group, which is set by the user who initiated the sampling. This field allows the user to differentiate between several samplers working simultaneously and filter packets relevant to him PSAMPLE_ATTR_GROUP_SEQ - sequence counter of last sent packet. The sequence is kept for each group PSAMPLE_ATTR_SAMPLE_RATE - the sampling rate used for sampling the packets PSAMPLE_ATTR_DATA - the actual packet bits The sampled packets are sent to the PSAMPLE_NL_MCGRP_SAMPLE multicast group. In addition, add the GET_GROUPS netlink command which allows the user to see the current sample groups, their refcount and sequence number. This command currently supports only netlink dump mode. Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24net: phy: Fix typo for MDIO module boilerplate commentFlorian Fainelli
The module boilerplate macro is named mdio_module_driver and not module_mdio_driver, fix that. Fixes: a9049e0c513c ("mdio: Add support for mdio drivers.") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24nfs: Don't increment lock sequence ID after NFS4ERR_MOVEDChuck Lever
Xuan Qi reports that the Linux NFSv4 client failed to lock a file that was migrated. The steps he observed on the wire: 1. The client sent a LOCK request to the source server 2. The source server replied NFS4ERR_MOVED 3. The client switched to the destination server 4. The client sent the same LOCK request to the destination server with a bumped lock sequence ID 5. The destination server rejected the LOCK request with NFS4ERR_BAD_SEQID RFC 3530 section 8.1.5 provides a list of NFS errors which do not bump a lock sequence ID. However, RFC 3530 is now obsoleted by RFC 7530. In RFC 7530 section 9.1.7, this list has been updated by the addition of NFS4ERR_MOVED. Reported-by: Xuan Qi <xuan.qi@oracle.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: stable@vger.kernel.org # v3.7+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2017-01-24bridge: multicast to unicastFelix Fietkau
Implements an optional, per bridge port flag and feature to deliver multicast packets to any host on the according port via unicast individually. This is done by copying the packet per host and changing the multicast destination MAC to a unicast one accordingly. multicast-to-unicast works on top of the multicast snooping feature of the bridge. Which means unicast copies are only delivered to hosts which are interested in it and signalized this via IGMP/MLD reports previously. This feature is intended for interface types which have a more reliable and/or efficient way to deliver unicast packets than broadcast ones (e.g. wifi). However, it should only be enabled on interfaces where no IGMPv2/MLDv1 report suppression takes place. This feature is disabled by default. The initial patch and idea is from Felix Fietkau. Signed-off-by: Felix Fietkau <nbd@nbd.name> [linus.luessing@c0d3.blue: various bug + style fixes, commit message] Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue> Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating itBart Van Assche
Make the rxe and rdmavt drivers use dma_virt_ops. Update the comments that refer to the source files removed by this patch. Remove struct ib_dma_mapping_ops. Remove ib_device.dma_ops. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Andrew Boyer <andrew.boyer@dell.com> Cc: Dennis Dalessandro <dennis.dalessandro@intel.com> Cc: Jonathan Toppins <jtoppins@redhat.com> Cc: Alex Estrin <alex.estrin@intel.com> Cc: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24IB/core: Remove ib_device.dma_deviceBart Van Assche
Add code in ib_register_device() for copying the DMA masks. Use &ib_device.dev in DMA mapping operations instead of dma_device. Remove ib_device.dma_device because due to this and previous patches it is no longer used. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24IB/core: Change the type of an ib_dma_alloc_coherent() argumentBart Van Assche
Change the type of the dma_handle argument from u64 * to dma_addr_t *. This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24IB/core: Remove ib_dma_*map_single_attrs()Bart Van Assche
Remove these functions because these are not used. Additionally, the implementation of these functions is not correct for the hfi1, qib and rxe drivers because dma_device is used instead of dma_ops. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24lib/dma-virt: Add dma_virt_opsBart Van Assche
Several RDMA drivers (hfi1, qib and rxe) expect that ib_sge.addr is a virtual address. Provide DMA mapping operations that are suitable for these drivers. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Joerg Roedel <jroedel@suse.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24treewide: Consolidate get_dma_ops() implementationsBart Van Assche
Introduce a new architecture-specific get_arch_dma_ops() function that takes a struct bus_type * argument. Add get_dma_ops() in <linux/dma-mapping.h>. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Russell King <linux@armlinux.org.uk> Cc: x86@kernel.org Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24treewide: Consolidate set_dma_ops() implementationsBart Van Assche
Now that all set_dma_ops() implementations are identical (ignoring BUG_ON() statements), remove the architecture specific definitions and add a definition in <linux/dma-mapping.h>. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: linux-arch@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: Paul Mackerras <paulus@samba.org> Cc: Russell King <linux@armlinux.org.uk> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24treewide: Move dma_ops from struct dev_archdata into struct deviceBart Van Assche
Some but not all architectures provide set_dma_ops(). Move dma_ops from struct dev_archdata into struct device such that it becomes possible on all architectures to configure dma_ops per device. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Russell King <linux@armlinux.org.uk> Cc: x86@kernel.org Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24treewide: Constify most dma_map_ops structuresBart Van Assche
Most dma_map_ops structures are never modified. Constify these structures such that these can be write-protected. This patch has been generated as follows: git grep -l 'struct dma_map_ops' | xargs -d\\n sed -i \ -e 's/struct dma_map_ops/const struct dma_map_ops/g' \ -e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \ -e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \ -e 's/const const struct dma_map_ops /const struct dma_map_ops /g'; sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \ $(git grep -l 'struct dma_map_ops intel_dma_ops'); sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \ $(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc); sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \ -e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \ -e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \ drivers/pci/host/*.c sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c sed -i -e 's/(const struct dma_map_ops \*)//' drivers/misc/mic/bus/vop_bus.c Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Russell King <linux@armlinux.org.uk> Cc: x86@kernel.org Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24IB/cxgb3: fix misspelling in header guardNicolas Iooss
Use CXGB3_... instead of CXBG3_... Fixes: a85fb3383340 ("IB/cxgb3: Move user vendor structures") Cc: stable@vger.kernel.org # 4.9 Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Steve Wise <swise@chelsio.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24Introduce a sysctl that modifies the value of PROT_SOCK.Krister Johansen
Add net.ipv4.ip_unprivileged_port_start, which is a per namespace sysctl that denotes the first unprivileged inet port in the namespace. To disable all privileged ports set this to zero. It also checks for overlap with the local port range. The privileged and local range may not overlap. The use case for this change is to allow containerized processes to bind to priviliged ports, but prevent them from ever being allowed to modify their container's network configuration. The latter is accomplished by ensuring that the network namespace is not a child of the user namespace. This modification was needed to allow the container manager to disable a namespace's priviliged port restrictions without exposing control of the network namespace to processes in the user namespace. Signed-off-by: Krister Johansen <kjlx@templeofstupid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24Merge tag 'v4.10-rc1' into asoc-intelMark Brown
Linux 4.10-rc1
2017-01-24can: dev: add CAN interface API for fixed bitratesMarc Kleine-Budde
Some CAN interfaces only support fixed fixed bitrates. This patch adds a netlink interface to get the list of the CAN interface's fixed bitrates and data bitrates. Inside the driver arrays of supported data- bitrate values are defined. const u32 drvname_bitrate[] = { 20000, 50000, 100000 }; const u32 drvname_data_bitrate[] = { 200000, 500000, 1000000 }; struct drvname_priv *priv; priv = netdev_priv(dev); priv->bitrate_const = drvname_bitrate; priv->bitrate_const_cnt = ARRAY_SIZE(drvname_bitrate); priv->data_bitrate_const = drvname_data_bitrate; priv->data_bitrate_const_cnt = ARRAY_SIZE(drvname_data_bitrate); Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2017-01-24can: dev: add CAN interface termination APIOliver Hartkopp
This patch adds a netlink interface to configure the CAN bus termination of CAN interfaces. Inside the driver an array of supported termination values is defined: const u16 drvname_termination[] = { 60, 120, CAN_TERMINATION_DISABLED }; struct drvname_priv *priv; priv = netdev_priv(dev); priv->termination_const = drvname_termination; priv->termination_const_cnt = ARRAY_SIZE(drvname_termination); priv->termination = CAN_TERMINATION_DISABLED; And the funtion to set the value has to be defined: priv->do_set_termination = drvname_set_termination; Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Reviewed-by: Ramesh Shanmugasundaram <Ramesh.shanmugasundaram@bp.renesas.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2017-01-24ARM: dts: r7s72100: add ostm clock to device treeChris Brandt
Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-01-24rfkill: remove rfkill-regulatorJohannes Berg
There are no users of this ("vrfkill") in the tree, so it's just dead code - remove it. This also isn't really how rfkill is supposed to be used - it's intended as a signalling mechanism to/from the device, which the driver (and partially cfg80211) will handle - having a separate rfkill instance for a regulator is confusing, the driver should use the regulator instead to turn off the device when requested. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-01-24mac80211: fix documentation warningsJohannes Berg
For a few restructured text warnings in mac80211, making the documentation warning-free (for now). In order to not add trailing whitespace, but also not introduce too much noise into this change, move just the affected docs into inline comments. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-01-24cfg80211: fix a documentation warningJohannes Berg
The new restructured text parser complains about the formatting, and really this should be a definition list. In order to fix this without introducing trailing whitespace, convert to the inline kernel-doc format. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-01-24drm/simple-helpers: Add missing includesNoralf Trønnes
Add missing includes to pull in definitions for drm_crtc, drm_plane and drm_encoder. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170122181117.8210-4-noralf@tronnes.org
2017-01-24drm/fb-cma-helper: Add drm_fbdev_cma_set_suspend_unlocked()Noralf Trønnes
Add a CMA version of drm_fb_helper_set_suspend_unlocked(). Cc: laurent.pinchart@ideasonboard.com Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170122181117.8210-2-noralf@tronnes.org
2017-01-24exec: Remove LSM_UNSAFE_PTRACE_CAPEric W. Biederman
With previous changes every location that tests for LSM_UNSAFE_PTRACE_CAP also tests for LSM_UNSAFE_PTRACE making the LSM_UNSAFE_PTRACE_CAP redundant, so remove it. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2017-01-24inotify: Convert to using per-namespace limitsNikolay Borisov
This patchset converts inotify to using the newly introduced per-userns sysctl infrastructure. Currently the inotify instances/watches are being accounted in the user_struct structure. This means that in setups where multiple users in unprivileged containers map to the same underlying real user (i.e. pointing to the same user_struct) the inotify limits are going to be shared as well, allowing one user(or application) to exhaust all others limits. Fix this by switching the inotify sysctls to using the per-namespace/per-user limits. This will allow the server admin to set sensible global limits, which can further be tuned inside every individual user namespace. Additionally, in order to preserve the sysctl ABI make the existing inotify instances/watches sysctls modify the values of the initial user namespace. Signed-off-by: Nikolay Borisov <n.borisov.lkml@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Acked-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2017-01-23Merge tag 'gpio-v4.10-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fix from Linus Walleij: "A single lockdep fix, nothing else going on. This makes lockdep noiseless and work properly with threaded GPIO IRQchips. Summary: Fix a lockdep issue: the threaded irqchips also need their unique key, and take this opportunity to get rid of the horrible macro and replace it with a static inline" * tag 'gpio-v4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: provide lockdep keys for nested/unnested irqchips
2017-01-23Merge tag 'drm-fixes-for-v4.10-rc6' of ↵Linus Torvalds
git://people.freedesktop.org/~airlied/linux Pull drm fixes from Dave Airlie: "drm fixes across the board. Okay holidays and LCA kinda caught up with me, I thought I'd get some of this dequeued last week, but Hobart was sunny and warm and not all gloomy and rainy as usual. This is a bit large, but not too much considering it's two weeks stuff from AMD and Intel. core: - one locking fix that helps with dynamic suspend/resume races i915: - mostly GVT updates, GVT was a recent introduction so fixes for it shouldn't cause any notable side effects. amdgpu: - a bunch of fixes for GPUs with a different memory controller design that need different firmware. exynos: - decon regression fixes msm: - two regression fixes etnaviv: - a workaround for an mmu bug that needs a lot more work. virtio: - sparse fix, and a maintainers update" * tag 'drm-fixes-for-v4.10-rc6' of git://people.freedesktop.org/~airlied/linux: (56 commits) drm/exynos/decon5433: set STANDALONE_UPDATE_F on output enablement drm/exynos/decon5433: fix CMU programming drm/exynos/decon5433: do not disable video after reset drm/i915: Ignore bogus plane coordinates on SKL when the plane is not visible drm/i915: Remove WaDisableLSQCROPERFforOCL KBL workaround. drm/amdgpu: add support for new hainan variants drm/radeon: add support for new hainan variants drm/amdgpu: change clock gating mode for uvd_v4. drm/amdgpu: fix program vce instance logic error. drm/amdgpu: fix bug set incorrect value to vce register Revert "drm/amdgpu: Only update the CUR_SIZE register when necessary" drm/msm: fix potential null ptr issue in non-iommu case drm/msm/mdp5: rip out plane->pending tracking drm/exynos/decon5433: set STANDALONE_UPDATE_F also if planes are disabled drm/exynos/decon5433: update shadow registers iff there are active windows drm/i915/gvt: rewrite gt reset handler using new function intel_gvt_reset_vgpu_locked drm/i915/gvt: fix vGPU instance reuse issues by vGPU reset function drm/i915/gvt: introduce intel_vgpu_reset_mmio() to reset mmio space drm/i915/gvt: move mmio init/clean function to mmio.c drm/i915/gvt: introduce intel_vgpu_reset_cfg_space to reset configuration space ...
2017-01-23bpf: add a longest prefix match trie map implementationDaniel Mack
This trie implements a longest prefix match algorithm that can be used to match IP addresses to a stored set of ranges. Internally, data is stored in an unbalanced trie of nodes that has a maximum height of n, where n is the prefixlen the trie was created with. Tries may be created with prefix lengths that are multiples of 8, in the range from 8 to 2048. The key used for lookup and update operations is a struct bpf_lpm_trie_key, and the value is a uint64_t. The code carries more information about the internal implementation. Signed-off-by: Daniel Mack <daniel@zonque.org> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit (git 2.34.1) at 2025-09-15 09:04:13 +0000