- 18 Aug, 2017 23 commits
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Doug Ledford authored
Merging our (hopefully) final -rc pull branch into our for-next branch because some of our pending patches won't apply cleanly without having the -rc patches in our tree. Signed-off-by:Doug Ledford <dledford@redhat.com>
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Doug Ledford authored
Conflicts: drivers/infiniband/core/iwcm.c - The rdma_netlink patches in HEAD and the iwarp cm workqueue fix (don't use WQ_MEM_RECLAIM, we aren't safe for that context) touched the same code. Signed-off-by: -
Bhumika Goyal authored
Add const to bin_attribute structures as they are only passed to the functions sysfs_{remove/create}_bin_file. The arguments passed are of type const, so declare the structures to be const. Done using Coccinelle. @M disable optional_qualifier@ identifier s; position p; @@ static struct bin_attribute s@p={...}; @okay1@ position p; identifier m.s; @@ ( sysfs_create_bin_file(...,&s@p,...) | sysfs_remove_bin_file(...,&s@p,...) ) @bad@ position p!={m.p,okay1.p}; identifier m.s; @@ s@p @change depends on !bad disable optional_qualifier@ identifier m.s; @@ static +const struct bin_attribute s={...}; Signed-off-by:Bhumika Goyal <bhumirks@gmail.com> Signed-off-by:
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Bhumika Goyal authored
Add const to bin_attribute structures as they are only passed to the functions sysfs_{remove/create}_bin_file. The arguments passed are of type const, so declare the structures to be const. Done using Coccinelle. @M disable optional_qualifier@ identifier s; position p; @@ static struct bin_attribute s@p={...}; @okay1@ position p; identifier m.s; @@ ( sysfs_create_bin_file(...,&s@p,...) | sysfs_remove_bin_file(...,&s@p,...) ) @bad@ position p!={m.p,okay1.p}; identifier m.s; @@ s@p @change depends on !bad disable optional_qualifier@ identifier m.s; @@ static +const struct bin_attribute s={...}; Signed-off-by: -
Bharat Potnuri authored
Initializing cq_context with ev_queue in create_cq(), leads to NULL pointer dereference in ib_uverbs_comp_handler(), if application doesnot use completion channel. This patch fixes the cq_context initialization. Fixes: 1e7710f3 ("IB/core: Change completion channel to use the reworked") Signed-off-by:
Potnuri Bharat Teja <bharat@chelsio.com> Reviewed-by:
Matan Barak <matanb@mellanox.com> Signed-off-by:
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Arnd Bergmann authored
A sockaddr_in structure on the stack getting passed into rdma_ip2gid triggers this warning, since we memcpy into a larger sockaddr_in6 structure: In function 'memcpy', inlined from 'rdma_ip2gid' at include/rdma/ib_addr.h:175:3, inlined from 'addr_event.isra.4.constprop' at drivers/infiniband/core/roce_gid_mgmt.c:693:2, inlined from 'inetaddr_event' at drivers/infiniband/core/roce_gid_mgmt.c:716:9: include/linux/string.h:305:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter The warning seems appropriate here, but the code is also clearly correct, so we really just want to shut up this instance of the output. The best way I found so far is to avoid the memcpy() call and instead replace it with a struct assignment. Fixes: 6974f0c4 ("include/linux/string.h: add the option of fortified string.h functions") Cc: Daniel Micay <danielmicay@gmail.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in i40iw_debug message and also split up a couple of lines that are too long and cause checkpatch warnings Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Yuval Shaia authored
Port validation is performed in ib_core, no need to duplicate it here. Signed-off-by:
Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
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Yuval Shaia authored
This message is warning so let's print it accordingly. Signed-off-by:
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Shiraz Saleem authored
Remove NULL check for cm_node->listener in i40iw_accept as listener is always present at this point. Remove the check for cm_node->accept_pend and related code in i40iw_cm_event_connected as the cm_node in this context is only pertinent to active node and cm_node->accept_pend is always 0. This fixes the following smatch warnings, drivers/infiniband/hw/i40iw/i40iw_cm.c:3691 i40iw_accept() error: we previously assumed 'cm_node->listener' could be null drivers/infiniband/hw/i40iw/i40iw_cm.c:4061 i40iw_cm_event_connected() error: we previously assumed 'cm_node->listener' could be null Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by:
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Christophe Jaillet authored
Axe a few lines of code and re-use existing error handling path to avoid code duplication. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 10774 1872 8 12654 316e infiniband/hw/vmw_pvrdma/pvrdma_main.o File size After adding 'const': text data bss dec hex filename 10838 1808 8 12654 316e infiniband/hw/vmw_pvrdma/pvrdma_main.o Signed-off-by:
Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 10429 780 33 11242 2bea drivers/infiniband/hw/nes/nes.o File size After adding 'const': text data bss dec hex filename 10541 668 33 11242 2bea drivers/infiniband/hw/nes/nes.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 13067 805 4 13876 3634 infiniband/hw/mthca/mthca_main.o File size After adding 'const': text data bss dec hex filename 13419 453 4 13876 3634 infiniband/hw/mthca/mthca_main.o Signed-off-by:
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Greg Kroah-Hartman authored
Some drivers (specifically the nes IB driver), want to create a lot of sysfs driver attributes. Instead of open-coding the creation and removal of these files (and getting it wrong btw), it's a better idea to let the driver core handle all of this logic for us. So add a new field to the pci driver structure, **groups, that allows pci drivers to specify an attribute group list it wishes to have created when it is registered with the driver core. Big bonus is now the driver doesn't race with userspace when the sysfs files are created vs. when the kobject is announced, so any script/tool that actually wanted to use these files will not have to poll waiting for them to show up. 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: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by:
Bjorn Helgaas <bhelgaas@google.com> Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in dev_err error message Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake, rename variable 'continious' to the correct spelling 'continuous' Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in qib_dev_err error message Signed-off-by:
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Sagi Grimberg authored
Its very likely that iwcm work execution will yield memory allocations (for example cm connection request). Reported-by:
Steve Wise <swise@opengridcomputing.com> Reviewed-by:
Sagi Grimberg <sagi@grimberg.me> Signed-off-by:
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Sagi Grimberg authored
create_workqueue always creates the workqueue with WQ_MEM_RECLAIM and silences a flush dependency warn for WQ_LEGACY. Instead, we want to keep the warn in case the allocator tries to flush the cm workqueue because its very likely that cm work execution will yield memory allocations (for example cm connection requests). Reported-by:
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Sagi Grimberg authored
Now that its not needed, we can simply not assign it. Reviewed-by:
Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Sagi Grimberg authored
Now that its not needed, we can simply not assign it. Reviewed-by:
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Sagi Grimberg authored
ib_clients can indeed fill .add to NULL, but then they will not see any device removal notifications. The reason is that that ib_register_client and ib_register_device checked existence of .add before adding the creating a corresponding client_data and adding it to the list. Simple condition reverse fixes the issue. Reviewed-by:
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- 17 Aug, 2017 1 commit
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Christophe Jaillet authored
This 'BUG_ON(!ep)' can never trigger because we have: if (!ep) return 0; just a few lines above. So it can be removed safely. Signed-off-by:
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- 16 Aug, 2017 10 commits
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Maor Gottlieb authored
As part of ib_uverbs_remove_one which might be triggered upon reset flow, we trigger IB_EVENT_DEVICE_FATAL event to userspace application. If device was removed after uverbs fd was opened but before ib_uverbs_get_context was called, the event file will be accessed before it was allocated, result in NULL pointer dereference: [ 72.325873] BUG: unable to handle kernel NULL pointer dereference at (null) ... [ 72.325984] IP: _raw_spin_lock_irqsave+0x22/0x40 [ 72.327123] Call Trace: [ 72.327168] ib_uverbs_async_handler.isra.8+0x2e/0x160 [ib_uverbs] [ 72.327216] ? synchronize_srcu_expedited+0x27/0x30 [ 72.327269] ib_uverbs_remove_one+0x120/0x2c0 [ib_uverbs] [ 72.327330] ib_unregister_device+0xd0/0x180 [ib_core] [ 72.327373] mlx5_ib_remove+0x74/0x140 [mlx5_ib] [ 72.327422] mlx5_remove_device+0xfb/0x110 [mlx5_core] [ 72.327466] mlx5_unregister_interface+0x3c/0xa0 [mlx5_core] [ 72.327509] mlx5_ib_cleanup+0x10/0x962 [mlx5_ib] [ 72.327546] SyS_delete_module+0x155/0x230 [ 72.328472] ? exit_to_usermode_loop+0x70/0xa6 [ 72.329370] do_syscall_64+0x54/0xc0 [ 72.330262] entry_SYSCALL64_slow_path+0x25/0x25 Fix it by checking that user context was allocated before trigger the event. Fixes: 036b1063 ('IB/uverbs: Enable device removal when there are active user space applications') Signed-off-by:
Maor Gottlieb <maorg@mellanox.com> Reviewed-by:
Leon Romanovsky <leon@kernel.org> Signed-off-by:
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Shiraz Saleem authored
ib_unregister_device is not protecting removal of sysfs entries. A call to ib_register_device in that window can result in duplicate sysfs entry warning. Move mutex_unlock to after ib_device_unregister_sysfs to protect against sysfs entry creation. This issue is exposed during driver load/unload stress test. WARNING: CPU: 5 PID: 4445 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x5f/0x70 sysfs: cannot create duplicate filename '/class/infiniband/i40iw0' Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./Q87M-D2H BIOS F7 01/17/2014 Workqueue: i40e i40e_service_task [i40e] Call Trace: dump_stack+0x67/0x98 __warn+0xcc/0xf0 warn_slowpath_fmt+0x4a/0x50 ? kernfs_path_from_node+0x4b/0x60 sysfs_warn_dup+0x5f/0x70 sysfs_do_create_link_sd.isra.2+0xb7/0xc0 sysfs_create_link+0x20/0x40 device_add+0x28c/0x600 ib_device_register_sysfs+0x58/0x170 [ib_core] ib_register_device+0x325/0x570 [ib_core] ? i40iw_register_rdma_device+0x1f4/0x400 [i40iw] ? kmem_cache_alloc_trace+0x143/0x330 ? __raw_spin_lock_init+0x2d/0x50 i40iw_register_rdma_device+0x2dc/0x400 [i40iw] i40iw_open+0x10a6/0x1950 [i40iw] ? i40iw_open+0xeab/0x1950 [i40iw] ? i40iw_make_cm_node+0x9c0/0x9c0 [i40iw] i40e_client_subtask+0xa4/0x110 [i40e] i40e_service_task+0xc2d/0x1320 [i40e] process_one_work+0x203/0x710 ? process_one_work+0x16f/0x710 worker_thread+0x126/0x4a0 ? trace_hardirqs_on+0xd/0x10 kthread+0x112/0x150 ? process_one_work+0x710/0x710 ? kthread_create_on_node+0x40/0x40 ret_from_fork+0x2e/0x40 ---[ end trace fd11b69e21ea7653 ]--- Couldn't register device i40iw0 with driver model Signed-off-by:
Sindhu Devale <sindhu.devale@intel.com> Signed-off-by:
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Steve Wise authored
Fixes: ee30f7d5 ("iw_cxgb4: Max fastreg depth depends on DSGL support") Signed-off-by:
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Colin Ian King authored
When dmac is NULL, ah is not being freed on the error return path. Fix this by kfree'ing it. Detected by CoverityScan, CID#1452636 ("Resource Leak") Fixes: d8966fcd ("IB/core: Use rdma_ah_attr accessor functions") Signed-off-by: -
Christopher N Bednarz authored
Avoid out of bounds error by utilizing I40IW_MAX_STATS_COUNT instead of I40IW_INVALID_FCN_ID. Signed-off-by:
Christopher N Bednarz <christoper.n.bednarz@intel.com> Signed-off-by:
Henry Orosco <henry.orosco@intel.com> Signed-off-by:
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Christopher N Bednarz authored
Utilize correct alignment variable when allocating DMA memory for CQ0. Signed-off-by:
Christopher N Bednarz <christopher.n.bednarz@intel.com> Signed-off-by:
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Mustafa Ismail authored
The typecast of tcp_seq_num incorrectly uses u8. Fix by casting to u32. Signed-off-by:
Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by:
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Mustafa Ismail authored
Fix incorrect naming of status code and struct. Use inline instead of immediate. Signed-off-by:
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Chien Tin Tung authored
Parsing of commit/query Host Memory Cache Function Private Memory is not skipping over reserved fields and incorrectly assigning those values into object's base/cnt/max_cnt fields. Skip over reserved fields and set correct values. Also correct memory alignment requirement for commit/query FPM buffers. Signed-off-by:
Chien Tin Tung <chien.tin.tung@intel.com> Signed-off-by:
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Bryan Tan authored
There is a chance of a race between arming the CQ and receiving completions. By reporting CQ missed events any ULPs should poll again to get the completions. Fixes: 29c8d9eb ("IB: Add vmw_pvrdma driver") Acked-by:
Aditya Sarwade <asarwade@vmware.com> Signed-off-by:
Bryan Tan <bryantan@vmware.com> Signed-off-by:
Adit Ranadive <aditr@vmware.com> Reviewed-by:
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- 14 Aug, 2017 2 commits
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Matan Barak authored
The hns driver uses __raw_writeq which is only defined in 64BIT environments. Trying to compile the driver in a 32BIT environment results in errors. Only COMPILE_TEST when 64BIT is defined. Fixes: 7d1b6a678e0b ("IB/hns: Support compile test for hns RoCE driver") Signed-off-by: -
Doug Ledford authored
This reverts commit ecd840ff.
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- 10 Aug, 2017 4 commits
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Doug Ledford authored
Conflicts: include/rdma/ib_verbs.h - Modified a function signature adjacent to a newly added function signature from a previous merge Signed-off-by: -
Doug Ledford authored
Conflicts: drivers/infiniband/hw/mlx5/main.c - Both add new code include/rdma/ib_verbs.h - Both add new code Signed-off-by: -
Doug Ledford authored
Merge tag 'rdma-next-2017-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma into rdma-netlink RDMA netlink infrastructure v2 Signed-off-by:
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Leon Romanovsky authored
Add ability to get node_type for RDAM netlink users. Signed-off-by:
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