- 12 Jan, 2017 15 commits
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Feras Daoud authored
Add a detailed return code to dev_queue_xmit function when calling to requeue packet via __skb_dequeue. Signed-off-by:
Feras Daoud <ferasda@mellanox.com> Signed-off-by:
Erez Shitrit <erezsh@mellanox.com> Reviewed-by:
Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by:
Leon Romanovsky <leon@kernel.org> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Feras Daoud authored
The ipoib_vlan_add function calls rtnl_unlock after free_netdev, rtnl_unlock not only releases the lock, but also calls netdev_run_todo. The latter function browses the net_todo_list array and completes the unregistration of all its net_device instances. If we call free_netdev before rtnl_unlock, then netdev_run_todo call over the freed device causes panic. To fix, move rtnl_unlock call before free_netdev call. Fixes: 9baa0b03 ("IB/ipoib: Add rtnl_link_ops support") Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
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Feras Daoud authored
When calling set_mode from sys/fs, the call flow locks the sys/fs lock first and then tries to lock rtnl_lock (when calling ipoib_set_mod). On the other hand, the rmmod call flow takes the rtnl_lock first (when calling unregister_netdev) and then tries to take the sys/fs lock. Deadlock a->b, b->a. The problem starts when ipoib_set_mod frees it's rtnl_lck and tries to get it after that. set_mod: [<ffffffff8104f2bd>] ? check_preempt_curr+0x6d/0x90 [<ffffffff814fee8e>] __mutex_lock_slowpath+0x13e/0x180 [<ffffffff81448655>] ? __rtnl_unlock+0x15/0x20 [<ffffffff814fed2b>] mutex_lock+0x2b/0x50 [<ffffffff81448675>] rtnl_lock+0x15/0x20 [<ffffffffa02ad807>] ipoib_set_mode+0x97/0x160 [ib_ipoib] [<ffffffffa02b5f5b>] set_mode+0x3b/0x80 [ib_ipoib] [<ffffffff8134b840>] dev_attr_store+0x20/0x30 [<ffffffff811f0fe5>] sysfs_write_file+0xe5/0x170 [<ffffffff8117b068>] vfs_write+0xb8/0x1a0 [<ffffffff8117ba81>] sys_write+0x51/0x90 [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b rmmod: [<ffffffff81279ffc>] ? put_dec+0x10c/0x110 [<ffffffff8127a2ee>] ? number+0x2ee/0x320 [<ffffffff814fe6a5>] schedule_timeout+0x215/0x2e0 [<ffffffff8127cc04>] ? vsnprintf+0x484/0x5f0 [<ffffffff8127b550>] ? string+0x40/0x100 [<ffffffff814fe323>] wait_for_common+0x123/0x180 [<ffffffff81060250>] ? default_wake_function+0x0/0x20 [<ffffffff8119661e>] ? ifind_fast+0x5e/0xb0 [<ffffffff814fe43d>] wait_for_completion+0x1d/0x20 [<ffffffff811f2e68>] sysfs_addrm_finish+0x228/0x270 [<ffffffff811f2fb3>] sysfs_remove_dir+0xa3/0xf0 [<ffffffff81273f66>] kobject_del+0x16/0x40 [<ffffffff8134cd14>] device_del+0x184/0x1e0 [<ffffffff8144e59b>] netdev_unregister_kobject+0xab/0xc0 [<ffffffff8143c05e>] rollback_registered+0xae/0x130 [<ffffffff8143c102>] unregister_netdevice+0x22/0x70 [<ffffffff8143c16e>] unregister_netdev+0x1e/0x30 [<ffffffffa02a91b0>] ipoib_remove_one+0xe0/0x120 [ib_ipoib] [<ffffffffa01ed95f>] ib_unregister_device+0x4f/0x100 [ib_core] [<ffffffffa021f5e1>] mlx4_ib_remove+0x41/0x180 [mlx4_ib] [<ffffffffa01ab771>] mlx4_remove_device+0x71/0x90 [mlx4_core] Fixes: 862096a8 ("IB/ipoib: Add more rtnl_link_ops callbacks") Cc: <stable@vger.kernel.org> # v3.6+ Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: -
Feras Daoud authored
This patch fixes Deadlock while executing ipoib_vlan_delete. The function takes the vlan_rwsem semaphore and calls unregister_netdevice. The later function calls ipoib_mcast_stop_thread that cause workqueue flush. When the queue has one of the ipoib_ib_dev_flush_xxx events, a deadlock occur because these events also tries to catch the same vlan_rwsem semaphore. To fix, unregister_netdevice should be called after releasing the semaphore. Fixes: cbbe1efa ("IPoIB: Fix deadlock between ipoib_open() and child interface create") Signed-off-by:
Alex Vesker <valex@mellanox.com> Signed-off-by:
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Feras Daoud authored
When changing the connection mode, the ipoib_set_mode function did not check if the previous connection mode equals to the new one. This commit adds the required check and return 0 if the new mode equals to the previous one. Fixes: 839fcaba ("IPoIB: Connected mode experimental support") Signed-off-by:
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Feras Daoud authored
In datagram mode, the IB UD (Unreliable Datagram) transport is used so the MTU of the interface is equal to the IB L2 MTU minus the IPoIB encapsulation header. Any request to change the MTU value above the maximum range will change the MTU to the max allowed, but will not show any warning message. An ipoib_warn is issued in such cases, letting the user know that even though the value is legal, it can't be currently applied. Signed-off-by:
Noa Osherovich <noaos@mellanox.com> Signed-off-by:
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ssh10 authored
Replace BUG() with BUG_ON() using coccinelle Signed-off-by:
Shyam Saini <mayhs11saini@gmail.com> Signed-off-by:
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ssh10 authored
Elsewhere the sin_family field holds a value with a name of the form AF_..., so it seems reasonable to do so here as well. Also the values of PF_INET and AF_INET are the same. The semantic patch that makes this change is as follows: //</smpl> @@ struct sockaddr_in sip; @@ ( sip.sin_family == - PF_INET + AF_INET | sip.sin_family != - PF_INET + AF_INET | sip.sin_family = - PF_INET + AF_INET ) //</smpl> Signed-off-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
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Jason Gunthorpe authored
The RDMA core uses ib_pack() to convert from unpacked CPU structs to on-the-wire bitpacked structs. This process requires that 1 bit fields are declared as u8 in the unpacked struct, otherwise the packing process does not read the value properly and the packed result is wired to 0. Several places wrongly used int. Crucially this means the kernel has never, set reversible correctly in the path record request. It has always asked for irreversible paths even if the ULP requests otherwise. When the kernel is used with a SM that supports this feature, it completely breaks communication management if reversible paths are not properly requested. The only reason this ever worked is because opensm ignores the reversible bit. Cc: stable@vger.kernel.org Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by:
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Amrani, Ram authored
Simplify function and sub-function flow of QP creation and destruction. This also serves as a preparation for SRQ and iWARP support. Signed-off-by:
Ram Amrani <Ram.Amrani@cavium.com> Reviewed-by:
Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by:
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Geliang Tang authored
To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree. Signed-off-by:
Geliang Tang <geliangtang@gmail.com> Reviewed-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Acked-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
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Cao jin authored
In AER recovery, pci_error_handlers.link_reset() is never called, drop it now. Signed-off-by:
Cao jin <caoj.fnst@cn.fujitsu.com> Signed-off-by:
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Cao jin authored
In AER recovery, pci_error_handlers.link_reset() is never called, drop it now. Signed-off-by:
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Kees Cook authored
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> Acked-by:
Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by:
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Kees Cook authored
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:
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- 10 Jan, 2017 22 commits
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Bart Van Assche authored
Additionally, make it easier to detect skb leaks by issuing a warning if a leak occurs. Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by:
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Bart Van Assche authored
Neither rxe->ifc_ops nor any of the function pointers in struct struct rxe_ifc_ops ever change. Hence remove the rxe->ifc_ops indirection mechanism. Signed-off-by:
Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by:
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Bart Van Assche authored
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Bart Van Assche authored
Avoid that calling check_rkey() for mem->state == RXE_MEM_STATE_FREE triggers an MR reference leak. Signed-off-by:
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Bart Van Assche authored
Change do_complete() such that an error completion is not only generated if a QP is in the error state but also if a work request failed. Signed-off-by:
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Bart Van Assche authored
This change makes the code easier to read and avoids that code is duplicated. Signed-off-by:
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Bart Van Assche authored
Since index values equal to or above 'range' can trigger memory corruption, complain if index >= range. Signed-off-by:
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Bart Van Assche authored
It is strongly recommended to report kernel warnings once instead of every time a condition is hit. Hence change WARN_ON() into WARN_ON_ONCE() / BUILD_BUG_ON() as appropriate. Signed-off-by:
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Bart Van Assche authored
Change the argument type of these functions from void * into struct rxe_pool_entry *. Signed-off-by:
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Bart Van Assche authored
Let the compiler check the type of the arguments passed to SKB_TO_PKT() and PKT_TO_SKB(). Signed-off-by:
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Bart Van Assche authored
Casting a pointer to 'void *' explicitly is not necessary in C code. Signed-off-by:
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Bart Van Assche authored
The variable 'av' is not used so remove it. Since that change removes the last user of the 'wqe' argument, remove that argument too. Signed-off-by:
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Bart Van Assche authored
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Bart Van Assche authored
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Bart Van Assche authored
Avoid that sparse complains about using 0 as a pointer, about missing function declarations and also avoid that sparse complains about endianness. Signed-off-by:
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Selvin Xavier authored
Update the if_ether.h with the ethertype for Infiniband over Ethernet packets. Also, removing the occurances of 0x8915 from infiniband vendor drivers. Signed-off-by:
Selvin Xavier <selvin.xavier@broadcom.com> Reviewed-by:
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Leon Romanovsky authored
MAD and HFI1 have different naming convention, this patch simplifies and unifies their defines and names. As part of cleanup, the HFI1 _NUM() macro and command indexes were removed (controversial). This will cause intentional (and arguably unnecessary) breakage to the PSM user space library. Signed-off-by:
Matan Barak <matanb@mellanox.com> Signed-off-by:
Haggai Eran <haggaie@mellanox.com> Signed-off-by:
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Leon Romanovsky authored
Rename RDMA magic number to better describe IOCTLs. Signed-off-by:
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Leon Romanovsky authored
Move HFI1 IOCTL declarations to rdma_user_ioctl.h file. Signed-off-by:
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Leon Romanovsky authored
Move hfi1 ioctl definitions to a new header which can be included by both the hfi1 and qib drivers to avoid a duplicate enum definition as shown in this build error for qib: CC [M] drivers/infiniband/hw/qib/qib_sysfs.o In file included from ./include/uapi/rdma/rdma_user_ioctl.h:39:0, from include/uapi/rdma/ib_user_mad.h:38, from include/rdma/ib_mad.h:43, from include/rdma/ib_pma.h:38, from drivers/infiniband/hw/qib/qib_mad.h:37, from drivers/infiniband/hw/qib/qib_init.c:49: ./include/uapi/rdma/hfi/hfi1_user.h:370:2: error: redeclaration of enumerator ‘ur_rcvhdrtail’ ur_rcvhdrtail = 0, Move hfi1 structures to separate file to avoid this failure. The actual move of the ioctl definitions comes in a follow on patch. Signed-off-by:
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Leon Romanovsky authored
Move legacy MAD IOCTL declarations to rdma_user_ioctl.h file. Signed-off-by:
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Leon Romanovsky authored
This patch provides one common file (rdma_user_ioctl.h) for all RDMA UAPI IOCTLs. Signed-off-by:
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- 08 Jan, 2017 3 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are a bunch of USB fixes for 4.10-rc3. Yeah, it's a lot, an artifact of the holiday break I think. Lots of gadget and the usual XHCI fixups for reported issues (one day that driver will calm down...) Also included are a bunch of usb-serial driver fixes, and for good measure, a number of much-reported MUSB driver issues have finally been resolved. All of these have been in linux-next with no reported issues" * tag 'usb-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (72 commits) USB: fix problems with duplicate endpoint addresses usb: ohci-at91: use descriptor-based gpio APIs correctly usb: storage: unusual_uas: Add JMicron JMS56x to unusual device usb: hub: Move hub_port_disable() to fix warning if PM is disabled usb: musb: blackfin: add bfin_fifo_offset in bfin_ops usb: musb: fix compilation warning on unused function usb: musb: Fix trying to free already-free IRQ 4 usb: musb: dsps: implement clear_ep_rxintr() callback usb: musb: core: add clear_ep_rxintr() to musb_platform_ops USB: serial: ti_usb_3410_5052: fix NULL-deref at open USB: serial: spcp8x5: fix NULL-deref at open USB: serial: quatech2: fix sleep-while-atomic in close USB: serial: pl2303: fix NULL-deref at open USB: serial: oti6858: fix NULL-deref at open USB: serial: omninet: fix NULL-derefs at open and disconnect USB: serial: mos7840: fix misleading interrupt-URB comment USB: serial: mos7840: remove unused write URB USB: serial: mos7840: fix NULL-deref at open USB: serial: mos7720: remove obsolete port initialisation USB: serial: mos7720: fix parallel probe ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc fixes from Greg KH: "Here are a few small char/misc driver fixes for 4.10-rc3. Two MEI driver fixes, and three NVMEM patches for reported issues, and a new Hyper-V driver MAINTAINER update. Nothing major at all, all have been in linux-next with no reported issues" * tag 'char-misc-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: hyper-v: Add myself as additional MAINTAINER nvmem: fix nvmem_cell_read() return type doc nvmem: imx-ocotp: Fix wrong register size nvmem: qfprom: Allow single byte accesses for read/write mei: move write cb to completion on credentials failures mei: bus: fix mei_cldev_enable KDoc
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