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2019-06-13rdma: Remove nesJason Gunthorpe1-3992/+0
This driver was first merged over 10 years ago and has not seen major activity by the authors in the last 7 years. However, in that time it has been patched 150 times to adapt it to changing kernel APIs. Further, the hardware has several issues, like not supporting 64 bit DMA, that make it rather uninteresting for use with modern systems and RDMA. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-05-09Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds1-1/+2
Pull rdma updates from Jason Gunthorpe: "This has been a smaller cycle than normal. One new driver was accepted, which is unusual, and at least one more driver remains in review on the list. Summary: - Driver fixes for hns, hfi1, nes, rxe, i40iw, mlx5, cxgb4, vmw_pvrdma - Many patches from MatthewW converting radix tree and IDR users to use xarray - Introduction of tracepoints to the MAD layer - Build large SGLs at the start for DMA mapping and get the driver to split them - Generally clean SGL handling code throughout the subsystem - Support for restricting RDMA devices to net namespaces for containers - Progress to remove object allocation boilerplate code from drivers - Change in how the mlx5 driver shows representor ports linked to VFs - mlx5 uapi feature to access the on chip SW ICM memory - Add a new driver for 'EFA'. This is HW that supports user space packet processing through QPs in Amazon's cloud" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (186 commits) RDMA/ipoib: Allow user space differentiate between valid dev_port IB/core, ipoib: Do not overreact to SM LID change event RDMA/device: Don't fire uevent before device is fully initialized lib/scatterlist: Remove leftover from sg_page_iter comment RDMA/efa: Add driver to Kconfig/Makefile RDMA/efa: Add the efa module RDMA/efa: Add EFA verbs implementation RDMA/efa: Add common command handlers RDMA/efa: Implement functions that submit and complete admin commands RDMA/efa: Add the ABI definitions RDMA/efa: Add the com service API definitions RDMA/efa: Add the efa_com.h file RDMA/efa: Add the efa.h header file RDMA/efa: Add EFA device definitions RDMA: Add EFA related definitions RDMA/umem: Remove hugetlb flag RDMA/bnxt_re: Use core helpers to get aligned DMA address RDMA/i40iw: Use core helpers to get aligned DMA address within a supported page size RDMA/verbs: Add a DMA iterator to return aligned contiguous memory blocks RDMA/umem: Add API to find best driver supported page size in an MR ...
2019-04-08ipv4: Prepare rtable for IPv6 gatewayDavid Ahern1-1/+1
To allow the gateway to be either an IPv4 or IPv6 address, remove rt_uses_gateway from rtable and replace with rt_gw_family. If rt_gw_family is set it implies rt_uses_gateway. Rename rt_gateway to rt_gw4 to represent the IPv4 version. Signed-off-by: David Ahern <dsahern@gmail.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-01IB: Pass uverbs_attr_bundle down ib_x destroy pathShamir Rabinovitch1-1/+2
The uverbs_attr_bundle with the ucontext is sent down to the drivers ib_x destroy path as ib_udata. The next patch will use the ib_udata to free the drivers destroy path from the dependency in 'uobject->context' as we already did for the create path. Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-12RDMA: Start use ib_device_opsKamal Heib1-1/+1
Make all the required change to start use the ib_device_ops structure. Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-11infiniband: i40iw, nes: don't use wall time for TCP sequence numbersArnd Bergmann1-3/+5
The nes infiniband driver uses current_kernel_time() to get a nanosecond granunarity timestamp to initialize its tcp sequence counters. This is one of only a few remaining users of that deprecated function, so we should try to get rid of it. Aside from using a deprecated API, there are several problems I see here: - Using a CLOCK_REALTIME based time source makes it predictable in case the time base is synchronized. - Using a coarse timestamp means it only gets updated once per jiffie, making it even more predictable in order to avoid having to access the hardware clock source - The upper 2 bits are always zero because the nanoseconds are at most 999999999. For the Linux TCP implementation, we use secure_tcp_seq(), which appears to be appropriate here as well, and solves all the above problems. i40iw uses a variant of the same code, so I do that same thing there for ipv4. Unlike nes, i40e also supports ipv6, which needs to call secure_tcpv6_seq instead. Acked-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-12-22nes: Change accelerated flag to boolShiraz Saleem1-1/+1
The accelerated flag only utilizes two values: 0 and 1. Modify accelerated flag in struct nes_cm_node to bool. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-10-18Merge branch 'timer_setup' into for-nextDoug Ledford1-3/+2
Conflicts: drivers/infiniband/hw/cxgb4/cm.c drivers/infiniband/hw/qib/qib_driver.c drivers/infiniband/hw/qib/qib_mad.c There were minor fixups needed in these files. Just minor context diffs due to patches from independent sources touching the same basic area. Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-14IB/nes: Remove set-but-not-used variablesBart Van Assche1-8/+0
This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Faisal Latif <faisal.latif@intel.com> Acked-by: Faisal Latif <fasial.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-14IB/nes: Suppress gcc 7 fall-through complaintsBart Van Assche1-0/+1
Avoid that gcc 7 reports the following warning when building with W=1: warning: this statement may fall through [-Wimplicit-fallthrough=] Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Faisal Latif <faisal.latif@intel.com> Acked-by: Faisal Latif <fasial.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-09RDMA/nes: Convert timers to use timer_setup()Kees Cook1-3/+2
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. A pointer from nesadapter back to nesdev was added. Cc: Faisal Latif <faisal.latif@intel.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: linux-rdma@vger.kernel.org Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-07-01net: convert sk_buff.users from atomic_t to refcount_tReshetova, Elena1-2/+2
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-01RDMA/nes: ACK MPA Reply frameTatyana Nikolova1-1/+1
Explicitly ACK the MPA Reply frame so the peer does not retransmit the frame. Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01RDMA/nes: Don't set 0-length FULPDU RTR indication control flagTatyana Nikolova1-1/+0
Don't set control flag for 0-length FULPDU (Send) RTR indication in the enhanced MPA Request/Reply frames, because it isn't supported. Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-12RDMA/nes: use designated initializersKees Cook1-11/+11
Prepare to mark sensitive kernel structures for randomization by making sure they're using designated initializers. These were identified during allyesconfig builds of x86, arm, and arm64, with most initializer fixes extracted from grsecurity. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03IB/nes: Remove debug prints after allocation failureLeon Romanovsky1-3/+1
The prints after [k|v][m|z|c]alloc() functions are not needed, because in case of failure, allocator will print their internal error prints anyway. Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07IB/nes: Remove deprecated create_singlethread_workqueueBhaktipriya Shridhar1-2/+2
alloc_ordered_workqueue() replaces deprecated create_singlethread_workqueue(). The workqueue "event_wq" queues work item &event->event_work and the workqueue "disconn_wq" queues work item work (maps to g_cm_core->disconn_wq). WQ_MEM_RECLAIM has not been set since the workqueues are not being used on a memory reclaim path. Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-16Merge branches 'nes', 'cxgb4' and 'iwpm' into k.o/for-4.6Doug Ledford1-275/+86
2016-03-16iw_nes: remove port mapper related codeFaisal Latif1-275/+76
Now that most of the port mapper code been moved to iwcm, we can remove it from port mapper service user drivers. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Tatyana E. Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-02-29nes: handling failed allocation when creating workqueueInsu Yun1-0/+10
Since create_singlethread_workqueue uses kzalloc internally, it can fail when the system is under memory pressure, so need to handle it. Signed-off-by: Insu Yun <wuninsu@gmail.com> Reviewed-by: Leon Romanovsky <leon@leon.nu> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-19RDMA/nes: checking for NULL instead of IS_ERRDan Carpenter1-2/+2
nes_reg_phys_mr() returns ERR_PTRs on error. It doesn't return NULL. This bug has been there for a while, but we recently changed from calling a function pointer to calling nes_reg_phys_mr() directly so now Smatch is able to detect the bug. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-24RDMA/nes: constify nes_cm_ops structureJulia Lawall1-1/+1
The nes_cm_ops structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-23nes: simplify nes_reg_phys_mr calling conventionsChristoph Hellwig1-6/+4
Just pass and address/size pair instead of an ib_phys_buf array. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> [core] Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-23IB: remove support for phys MRsChristoph Hellwig1-4/+3
We have stopped using phys MRs in the kernel a while ago, so let's remove all the cruft used to implement them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> [core] Reviewed-By: Devesh Sharma<devesh.sharma@avagotech.com> [ocrdma] Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-07-14RDMA/nes: Fix for resolving the neighTatyana Nikolova1-2/+3
Neighbor resolution doesn't work without this fix Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-02RDMA/nes: Enable the use of the tos field in the nes driverFaisal Latif1-0/+7
RDMA/nes: Enable the use of the tos field in the nes driver Signed-off-by: Faisal Latif <Faisal.Latif@intel.com> Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-05RDMA/nes: Report the actual address of the remote connecting peerTatyana Nikolova1-17/+48
Get the actual (non-mapped) ip/tcp address of the connecting peer from the port mapper and report the address info to the user space application at the time of connection establishment Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2014-06-10RDMA/nes: Add support for iWARP Port Mapper user space serviceTatyana Nikolova1-60/+260
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-03-17RDMA/nes: Fix for passing a valid QP pointer to the user space libraryTatyana Nikolova1-1/+1
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-03-17RDMA/nes: Fixes for IRD/ORD negotiation with MPA v2Tatyana Nikolova1-29/+90
Fixes to enable the negotiation of the supported IRD/ORD sizes with the peer when exchanging MPA v2 messages in connection establishment. Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-01-22RDMA/nes: Slight optimization of Ethernet address compareDing Tianhong1-2/+1
Use the possibly more efficient ether_addr_equal() instead of memcmp(). Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-08-12RDMA/cma: Add IPv6 support for iWARPSteve Wise1-69/+84
Modify the type of local_addr and remote_addr fields in struct iw_cm_id from struct sockaddr_in to struct sockaddr_storage to hold IPv6 and IPv4 addresses uniformly. Change the references of local_addr and remote_addr in cxgb4, cxgb3, nes and amso drivers to match this. However to be able to actully run traffic over IPv6, low-level drivers have to add code to support this. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> [ Fix unused variable warnings when INFINIBAND_NES_DEBUG not set. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-01-04nes: remove usage of dev->masterJiri Pirko1-1/+1
Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-08RDMA/nes: Fix for BUG_ON due to adding already-pending timerTatyana Nikolova1-18/+6
To avoid nes tcp_timer crash for SMP architectures, add_timer is replaced with mod_timer. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-11-22RDMA/nes: Use WARN()Julia Lawall1-5/+3
Use WARN() rather than printk() followed by WARN_ON(1), for conciseness. A simplified version of the semantic patch that makes this transformation is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression list es; @@ -printk( +WARN(1, es); -WARN_ON(1); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> [ Remove extra KERN_ERR from WARN() format. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30RDMA/nes: Fix for crash when TX checksum offload is offTatyana Nikolova1-0/+2
When TX checksum offload is disabled for an iWarp connection, skb->ip_summed needs to be set to CHECKSUM_NONE. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30RDMA/nes: Fix incorrect resolving of the loopback MAC addressTatyana Nikolova1-25/+7
Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-05-14RDMA/nes: Don't call event handler if pointer is NULLTatyana Nikolova1-1/+2
Don't call the ibqp event_handler pointer in the case it wasn't initialized. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Donald Wood <Donald.E.Wood@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-05-14RDMA/nes: Fix for the ORD value of the connecting peerTatyana Nikolova1-0/+4
Set ORD value of the connecting peer to be at least one in order to accommodate an RDMA READ Request message. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Donald Wood <Donald.E.Wood@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-03-21Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds1-17/+22
Pull InfiniBand/RDMA changes for the 3.4 merge window from Roland Dreier: "Nothing big really stands out; by patch count lots of fixes to the mlx4 driver plus some cleanups and fixes to the core and other drivers." * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (28 commits) mlx4_core: Scale size of MTT table with system RAM mlx4_core: Allow dynamic MTU configuration for IB ports IB/mlx4: Fix info returned when querying IBoE ports IB/mlx4: Fix possible missed completion event mlx4_core: Report thermal error events mlx4_core: Fix one more static exported function IB: Change CQE "csum_ok" field to a bit flag RDMA/iwcm: Reject connect requests if cmid is not in LISTEN state RDMA/cxgb3: Don't pass irq flags to flush_qp() mlx4_core: Get rid of redundant ext_port_cap flags RDMA/ucma: Fix AB-BA deadlock IB/ehca: Fix ilog2() compile failure IB: Use central enum for speed instead of hard-coded values IB/iser: Post initial receive buffers before sending the final login request IB/iser: Free IB connection resources in the proper place IB/srp: Consolidate repetitive sysfs code IB/srp: Use pr_fmt() and pr_err()/pr_warn() IB/core: Fix SDR rates in sysfs mlx4: Enforce device max FMR maps in FMR alloc IB/mlx4: Set bad_wr for invalid send opcode ...
2012-02-25RDMA/nes: Fixes for sparse endianness warningsTatyana Nikolova1-17/+22
Fix endianness problems detect by sparse, introduced with the enhanced MPA patch. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Faisal Latif <Faisal.Latif@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-02-10Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+4
Conflicts: drivers/infiniband/hw/nes/nes_cm.c Simple whitespace conflict. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-30RDMA/nes: Copyright updateTatyana Nikolova1-1/+1
Update copyright information in the source files. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Faisal Latif <Faisal.Latif@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-01-27RDMA/nes: Add missing rcu_read_unlock() in nes_addr_resolve_neigh()Roland Dreier1-2/+3
Make sure all exit paths from this function unlock everything. Reported-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-01-27RDMA/nes: Fix for sending MPA reject frameTatyana Nikolova1-0/+3
Set a reject flag, when sending MPA reject message to inform the peer that the application has rejected the connection. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Faisal Latif <Faisal.Latif@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-01-25infiniband: nes: Convert nes_addr_resolve_neigh() over to dst_neigh_lookup().David Miller1-3/+8
Now we must provide the IP destination address, and a reference has to be dropped when we're done with the entry. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-08Merge tag 'infiniband-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds1-0/+1
infiniband changes for 3.3 merge window * tag 'infiniband-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: rdma/core: Fix sparse warnings RDMA/cma: Fix endianness bugs RDMA/nes: Fix terminate during AE RDMA/nes: Make unnecessarily global nes_set_pau() static RDMA/nes: Change MDIO bus clock to 2.5MHz IB/cm: Fix layout of APR message IB/mlx4: Fix SL to 802.1Q priority-bits mapping for IBoE IB/qib: Default some module parameters optimally IB/qib: Optimize locking for get_txreq() IB/qib: Fix a possible data corruption when receiving packets IB/qib: Eliminate 64-bit jiffies use IB/qib: Fix style issues IB/uverbs: Protect QP multicast list
2012-01-04RDMA/nes: Fix terminate during AETatyana Nikolova1-0/+1
Fix for reset which happens right after sending a terminate message. Terminate timer is not deleted when the connection is closed. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Faisal Latif <Faisal.Latif@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-12-05infiniband: nes: Use dst's neighbour entry.David Miller1-9/+5
Do this instead of performing a by-hand lookup. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Roland Dreier <roland@purestorage.com>
2011-12-05net: Rename dst_get_neighbour{, _raw} to dst_get_neighbour_noref{, _raw}.David Miller1-1/+1
To reflect the fact that a refrence is not obtained to the resulting neighbour entry. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Roland Dreier <roland@purestorage.com>
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