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2016-08-04floppy: fix open(O_ACCMODE) for ioctl-only openJiri Kosina1-12/+9
Commit 09954bad4 ("floppy: refactor open() flags handling"), as a side-effect, causes open(/dev/fdX, O_ACCMODE) to fail. It turns out that this is being used setfdprm userspace for ioctl-only open(). Reintroduce back the original behavior wrt !(FMODE_READ|FMODE_WRITE) modes, while still keeping the original O_NDELAY bug fixed. Cc: [email protected] # v4.5+ Reported-by: Wim Osterholt <[email protected]> Tested-by: Wim Osterholt <[email protected]> Signed-off-by: Jiri Kosina <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2016-08-04Input: silead - remove some dead codeDan Carpenter1-3/+0
buf[0] is an unsigned char. touch_nr is an int. The test for negative here doesn't make sense so I have removed it. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2016-08-04Input: sis-i2c - select CONFIG_CRC_ITU_TArnd Bergmann1-0/+1
The newly added sis_i2c driver fails to link without the CRC_ITU_T driver enabled: drivers/input/touchscreen/sis_i2c.o: In function `sis_ts_irq_handler': sis_i2c.c:(.text+0xc0): undefined reference to `crc_itu_t' This adds a Kconfig select statement. Signed-off-by: Arnd Bergmann <[email protected]> Fixes: a485cb037fe6 ("Input: add driver for SiS 9200 family I2C touchscreen controllers") Signed-off-by: Dmitry Torokhov <[email protected]>
2016-08-04Merge branches 'misc' and 'rxe' into k.o/for-4.8-1Doug Ledford52-72/+13335
2016-08-04Soft RoCE driverMoni Shoua35-0/+12885
Soft RoCE (RXE) - The software RoCE driver ib_rxe implements the RDMA transport and registers to the RDMA core device as a kernel verbs provider. It also implements the packet IO layer. On the other hand ib_rxe registers to the Linux netdev stack as a udp encapsulating protocol, in that case RDMA, for sending and receiving packets over any Ethernet device. This yields a RDMA transport over the UDP/Ethernet network layer forming a RoCEv2 compatible device. The configuration procedure of the Soft RoCE drivers requires binding to any existing Ethernet network device. This is done with /sys interface. A userspace Soft RoCE library (librxe) provides user applications the ability to run with Soft RoCE devices. The use of rxe verbs ins user space requires the inclusion of librxe as a device specifics plug-in to libibverbs. librxe is packaged separately. Architecture: +-----------------------------------------------------------+ | Application | +-----------------------------------------------------------+ +-----------------------------------+ | libibverbs | User +-----------------------------------+ +----------------+ +----------------+ | librxe | | HW RoCE lib | +----------------+ +----------------+ +---------------------------------------------------------------+ +--------------+ +------------+ | Sockets | | RDMA ULP | +--------------+ +------------+ +--------------+ +---------------------+ | TCP/IP | | ib_core | +--------------+ +---------------------+ +------------+ +----------------+ Kernel | ib_rxe | | HW RoCE driver | +------------+ +----------------+ +------------------------------------+ | NIC driver | +------------------------------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +-----------------------------------------------------------+ | Application | +-----------------------------------------------------------+ +-----------------------------------+ | libibverbs | User +-----------------------------------+ +----------------+ +----------------+ | librxe | | HW RoCE lib | +----------------+ +----------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +--------------+ +------------+ | Sockets | | RDMA ULP | +--------------+ +------------+ +--------------+ +---------------------+ | TCP/IP | | ib_core | +--------------+ +---------------------+ +------------+ +----------------+ Kernel | ib_rxe | | HW RoCE driver | +------------+ +----------------+ +------------------------------------+ | NIC driver | +------------------------------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Soft RoCE resources: [1[ https://github.com/SoftRoCE/librxe-dev librxe - source code in Github [2] https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home - Soft RoCE Wiki page [3] https://github.com/SoftRoCE/librxe-dev - Soft RoCE userspace library Signed-off-by: Kamal Heib <[email protected]> Signed-off-by: Amir Vadai <[email protected]> Signed-off-by: Moni Shoua <[email protected]> Reviewed-by: Haggai Eran <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-04dm raid: fix use of wrong status char during resynchronizationHeinz Mauelshagen1-1/+0
During a resynchronization, device status char 'a' is output on the raid status line for every device of a RAID set. It changes from 'a' to 'A' (unless device failure) when the resynchronization completes. Interrupting and restarting a resynchronization, by reloading the DM table, erroneously lead to status char 'A'. Fix this by avoiding setting the MD_RECOVERY_REQUESTED flag in raid_preresume(). Signed-off-by: Heinz Mauelshagen <[email protected]> Signed-off-by: Mike Snitzer <[email protected]>
2016-08-04Merge tag 'media/v4.8-5' of ↵Linus Torvalds7-27/+46
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media DocBook removal and some fixups from Mauro Carvalho Chehab: - removal of the media DocBook (since it's all in Sphinx now) - videobuf2: Fix an allocation regression - a few fixes related to the CEC drivers * tag 'media/v4.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] cec: fix off-by-one memset [media] staging: add MEDIA_SUPPORT dependency [media] vivid: don't handle CEC_MSG_SET_STREAM_PATH [media] media: adv7180: Fix broken interrupt register access [media] vb2: Fix allocation size of dma_parms [media] vim2m: copy the other colorspace-related fields as well [media] adv7511: fix VIC autodetect doc-rst: Remove the media docbook
2016-08-04Merge branch 'akpm' (patches from Andrew)Linus Torvalds43-208/+173
Merge even more updates from Andrew Morton: - dma-mapping API cleanup - a few cleanups and misc things - use jump labels in dynamic-debug * emailed patches from Andrew Morton <[email protected]>: dynamic_debug: add jump label support jump_label: remove bug.h, atomic.h dependencies for HAVE_JUMP_LABEL arm: jump label may reference text in __exit tile: support static_key usage in non-module __exit sections sparc: support static_key usage in non-module __exit sections powerpc: add explicit #include <asm/asm-compat.h> for jump label drivers/media/dvb-frontends/cxd2841er.c: avoid misleading gcc warning MAINTAINERS: update email and list of Samsung HW driver maintainers block: remove BLK_DEV_DAX config option samples/kretprobe: fix the wrong type samples/kretprobe: convert the printk to pr_info/pr_err samples/jprobe: convert the printk to pr_info/pr_err samples/kprobe: convert the printk to pr_info/pr_err dma-mapping: use unsigned long for dma_attrs media: mtk-vcodec: remove unused dma_attrs include/linux/bitmap.h: cleanup tree-wide: replace config_enabled() with IS_ENABLED() drivers/fpga/Kconfig: fix build failure
2016-08-04drivers/media/dvb-frontends/cxd2841er.c: avoid misleading gcc warningArnd Bergmann1-2/+8
The addition of jump label support in dynamic_debug caused an unexpected warning in exactly one file in the kernel: drivers/media/dvb-frontends/cxd2841er.c: In function 'cxd2841er_tune_tc': include/linux/dynamic_debug.h:134:3: error: 'carrier_offset' may be used uninitialized in this function [-Werror=maybe-uninitialized] __dynamic_dev_dbg(&descriptor, dev, fmt, \ ^~~~~~~~~~~~~~~~~ drivers/media/dvb-frontends/cxd2841er.c:3177:11: note: 'carrier_offset' was declared here int ret, carrier_offset; ^~~~~~~~~~~~~~ The problem seems to be that the compiler gets confused by the extra conditionals in static_branch_unlikely, to the point where it can no longer keep track of which branches have already been taken, and it doesn't realize that this variable is now always initialized when it gets used. I have done lots of randconfig kernel builds and could not find any other file with this behavior, so I assume it's a rare enough glitch that we don't need to change the jump label support but instead just work around the warning in the driver. To achieve that, I'm moving the check for the return value into the switch() statement, which is an obvious transformation, but is enough to un-confuse the compiler here. The resulting code is not as nice to read, but at least we retain the behavior of warning if it gets changed to actually access an uninitialized carrier offset value in the future. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]> Acked-by: Abylay Ospan <[email protected]> Cc: Sergey Kozlov <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> Cc: Jason Baron <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2016-08-04dma-mapping: use unsigned long for dma_attrsKrzysztof Kozlowski25-169/+131
The dma-mapping core and the implementations do not change the DMA attributes passed by pointer. Thus the pointer can point to const data. However the attributes do not have to be a bitfield. Instead unsigned long will do fine: 1. This is just simpler. Both in terms of reading the code and setting attributes. Instead of initializing local attributes on the stack and passing pointer to it to dma_set_attr(), just set the bits. 2. It brings safeness and checking for const correctness because the attributes are passed by value. Semantic patches for this change (at least most of them): virtual patch virtual context @r@ identifier f, attrs; @@ f(..., - struct dma_attrs *attrs + unsigned long attrs , ...) { ... } @@ identifier r.f; @@ f(..., - NULL + 0 ) and // Options: --all-includes virtual patch virtual context @r@ identifier f, attrs; type t; @@ t f(..., struct dma_attrs *attrs); @@ identifier r.f; @@ f(..., - NULL + 0 ) Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Vineet Gupta <[email protected]> Acked-by: Robin Murphy <[email protected]> Acked-by: Hans-Christian Noren Egtvedt <[email protected]> Acked-by: Mark Salter <[email protected]> [c6x] Acked-by: Jesper Nilsson <[email protected]> [cris] Acked-by: Daniel Vetter <[email protected]> [drm] Reviewed-by: Bart Van Assche <[email protected]> Acked-by: Joerg Roedel <[email protected]> [iommu] Acked-by: Fabien Dessenne <[email protected]> [bdisp] Reviewed-by: Marek Szyprowski <[email protected]> [vb2-core] Acked-by: David Vrabel <[email protected]> [xen] Acked-by: Konrad Rzeszutek Wilk <[email protected]> [xen swiotlb] Acked-by: Joerg Roedel <[email protected]> [iommu] Acked-by: Richard Kuo <[email protected]> [hexagon] Acked-by: Geert Uytterhoeven <[email protected]> [m68k] Acked-by: Gerald Schaefer <[email protected]> [s390] Acked-by: Bjorn Andersson <[email protected]> Acked-by: Hans-Christian Noren Egtvedt <[email protected]> [avr32] Acked-by: Vineet Gupta <[email protected]> [arc] Acked-by: Robin Murphy <[email protected]> [arm64 and dma-iommu] Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2016-08-04media: mtk-vcodec: remove unused dma_attrsKrzysztof Kozlowski1-4/+0
The local variable dma_attrs is set but never read. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2016-08-04tree-wide: replace config_enabled() with IS_ENABLED()Masahiro Yamada15-33/+33
The use of config_enabled() against config options is ambiguous. In practical terms, config_enabled() is equivalent to IS_BUILTIN(), but the author might have used it for the meaning of IS_ENABLED(). Using IS_ENABLED(), IS_BUILTIN(), IS_MODULE() etc. makes the intention clearer. This commit replaces config_enabled() with IS_ENABLED() where possible. This commit is only touching bool config options. I noticed two cases where config_enabled() is used against a tristate option: - config_enabled(CONFIG_HWMON) [ drivers/net/wireless/ath/ath10k/thermal.c ] - config_enabled(CONFIG_BACKLIGHT_CLASS_DEVICE) [ drivers/gpu/drm/gma500/opregion.c ] I did not touch them because they should be converted to IS_BUILTIN() in order to keep the logic, but I was not sure it was the authors' intention. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Masahiro Yamada <[email protected]> Acked-by: Kees Cook <[email protected]> Cc: Stas Sergeev <[email protected]> Cc: Matt Redfearn <[email protected]> Cc: Joshua Kinard <[email protected]> Cc: Jiri Slaby <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Markos Chandras <[email protected]> Cc: "Dmitry V. Levin" <[email protected]> Cc: yu-cheng yu <[email protected]> Cc: James Hogan <[email protected]> Cc: Brian Gerst <[email protected]> Cc: Johannes Berg <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Al Viro <[email protected]> Cc: Will Drewry <[email protected]> Cc: Nikolay Martynov <[email protected]> Cc: Huacai Chen <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Leonid Yegoshin <[email protected]> Cc: Rafal Milecki <[email protected]> Cc: James Cowgill <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Alex Smith <[email protected]> Cc: Adam Buchbinder <[email protected]> Cc: Qais Yousef <[email protected]> Cc: Jiang Liu <[email protected]> Cc: Mikko Rapeli <[email protected]> Cc: Paul Gortmaker <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: Brian Norris <[email protected]> Cc: Hidehiro Kawai <[email protected]> Cc: "Luis R. Rodriguez" <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Dave Hansen <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Roland McGrath <[email protected]> Cc: Paul Burton <[email protected]> Cc: Kalle Valo <[email protected]> Cc: Viresh Kumar <[email protected]> Cc: Tony Wu <[email protected]> Cc: Huaitong Han <[email protected]> Cc: Sumit Semwal <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Juergen Gross <[email protected]> Cc: Jason Cooper <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Andrea Gelmini <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Marc Zyngier <[email protected]> Cc: Rabin Vincent <[email protected]> Cc: "Maciej W. Rozycki" <[email protected]> Cc: David Daney <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2016-08-04drivers/fpga/Kconfig: fix build failureSudip Mukherjee1-0/+1
While building m32r allmodconfig the build is failing with the error: ERROR: "bad_dma_ops" [drivers/fpga/zynq-fpga.ko] undefined! Xilinx Zynq FPGA is using DMA but there was no dependency while building. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Sudip Mukherjee <[email protected]> Acked-by: Moritz Fischer <[email protected]> Cc: Alan Tull <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2016-08-03Revert "ACPI / hotplug / PCI: Runtime resume bridge before rescan"Linus Torvalds1-4/+0
This reverts commit 16468c783cb4cf72475dcda23fabecb4a4bb0e17. Bisection showed that it was the root cause for a resume hang on a bog-standard all-Intel laptop (Sony Vaio Pro 11), and reverting fixes the hang. Signed-off-by: Linus Torvalds <[email protected]>
2016-08-03Merge branches 'hfi1' and 'sge-limit' into k.o/for-4.8-2Doug Ledford6-23/+29
2016-08-03Merge branch 'next' into for-linusDmitry Torokhov13-59/+1153
Prepare second round of input updates for 4.8 merge window.
2016-08-03IB/core: Support for CMA multicast join flagsAlex Vesker3-23/+107
Added UCMA and CMA support for multicast join flags. Flags are passed using UCMA CM join command previously reserved fields. Currently supporting two join flags indicating two different multicast JoinStates: 1. Full Member: The initiator creates the Multicast group(MCG) if it wasn't previously created, can send Multicast messages to the group and receive messages from the MCG. 2. Send Only Full Member: The initiator creates the Multicast group(MCG) if it wasn't previously created, can send Multicast messages to the group but doesn't receive any messages from the MCG. IB: Send Only Full Member requires a query of ClassPortInfo to determine if SM/SA supports this option. If SM/SA doesn't support Send-Only there will be no join request sent and an error will be returned. ETH: When Send Only Full Member is requested no IGMP join will be sent. Signed-off-by: Alex Vesker <[email protected]> Reviewed by: Hal Rosenstock <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03IB/sa: Add cached attribute containing SM information to SA portAlex Vesker1-0/+41
Added a new SA port attribute containing SM ClassPortInfo fields, (ClassPortInfo fields: Table 126 IB Spec 1.3.). This is useful for checking SM support for specific features. The attribute is cached to avoid resending queries, caching is done when a successful ClassPortInfo reply is received on the port. Invalidation of the attribute is done on SM change events, SM re-registration events, and SM LID change events. The fields in ClassPortInfo should not change during SM runtime without an event. Signed-off-by: Alex Vesker <[email protected]> Reviewed by: Hal Rosenstock <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03IB/uverbs: Fix race between uverbs_close and remove_oneJason Gunthorpe2-13/+25
Fixes an oops that might happen if uverbs_close races with remove_one. Both contexts may run ib_uverbs_cleanup_ucontext, it depends on the flow. Currently, there is no protection for a case that remove_one didn't make the cleanup it runs to its end, the underlying ib_device was freed then uverbs_close will call ib_uverbs_cleanup_ucontext and OOPs. Above might happen if uverbs_close deleted the file from the list then remove_one didn't find it and runs to its end. Fixes to protect against that case by a new cleanup lock so that ib_uverbs_cleanup_ucontext will be called always before that remove_one is ended. Fixes: 35d4a0b63dc0 ("IB/uverbs: Fix race between ib_uverbs_open and remove_one") Reported-by: Devesh Sharma <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]> Signed-off-by: Yishai Hadas <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03IB/mthca: Clean up error unwind flow in mthca_reset()Markus Elfring1-21/+20
The kfree() function was called in a few cases by the mthca_reset() function during error handling even if the passed variables "bridge_header" and "hca_header" contained a null pointer. Adjust jump targets according to the Linux coding style convention. Signed-off-by: Markus Elfring <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03IB/mthca: NULL arg to pci_dev_put is OKMarkus Elfring1-2/+1
The pci_dev_put() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03IB/hfi1: NULL arg to sc_return_credits is OKMarkus Elfring1-1/+1
The sc_return_credits() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03IB/mlx4: Add diagnostic hardware countersMark Bloch2-1/+206
Expose IB diagnostic hardware counters. The counters count IB events and are applicable for IB and RoCE. The counters can be divided into two groups, per device and per port. Device counters are always exposed. Port counters are exposed only if the firmware supports per port counters. rq_num_dup and sq_num_to are only exposed if we have firmware support for them, if we do, we expose them per device and per port. rq_num_udsdprd and num_cqovf are device only counters. rq - denotes responder. sq - denotes requester. |-----------------------|---------------------------------------| | Name | Description | |-----------------------|---------------------------------------| |rq_num_lle | Number of local length errors | |-----------------------|---------------------------------------| |sq_num_lle | number of local length errors | |-----------------------|---------------------------------------| |rq_num_lqpoe | Number of local QP operation errors | |-----------------------|---------------------------------------| |sq_num_lqpoe | Number of local QP operation errors | |-----------------------|---------------------------------------| |rq_num_lpe | Number of local protection errors | |-----------------------|---------------------------------------| |sq_num_lpe | Number of local protection errors | |-----------------------|---------------------------------------| |rq_num_wrfe | Number of CQEs with error | |-----------------------|---------------------------------------| |sq_num_wrfe | Number of CQEs with error | |-----------------------|---------------------------------------| |sq_num_mwbe | Number of Memory Window bind errors | |-----------------------|---------------------------------------| |sq_num_bre | Number of bad response errors | |-----------------------|---------------------------------------| |sq_num_rire | Number of Remote Invalid request | | | errors | |-----------------------|---------------------------------------| |rq_num_rire | Number of Remote Invalid request | | | errors | |-----------------------|---------------------------------------| |sq_num_rae | Number of remote access errors | |-----------------------|---------------------------------------| |rq_num_rae | Number of remote access errors | |-----------------------|---------------------------------------| |sq_num_roe | Number of remote operation errors | |-----------------------|---------------------------------------| |sq_num_tree | Number of transport retries exceeded | | | errors | |-----------------------|---------------------------------------| |sq_num_rree | Number of RNR NAK retries exceeded | | | errors | |-----------------------|---------------------------------------| |rq_num_rnr | Number of RNR NAKs sent | |-----------------------|---------------------------------------| |sq_num_rnr | Number of RNR NAKs received | |-----------------------|---------------------------------------| |rq_num_oos | Number of Out of Sequence requests | | | received | |-----------------------|---------------------------------------| |sq_num_oos | Number of Out of Sequence NAKs | | | received | |-----------------------|---------------------------------------| |rq_num_udsdprd | Number of UD packets silently | | | discarded on the Receive Queue due to | | | lack of receive descriptor | |-----------------------|---------------------------------------| |rq_num_dup | Number of duplicate requests received | |-----------------------|---------------------------------------| |sq_num_to | Number of time out received | |-----------------------|---------------------------------------| |num_cqovf | Number of CQ overflows | |-----------------------|---------------------------------------| Signed-off-by: Mark Bloch <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03net/mlx4: Query performance and diagnostics countersMark Bloch1-0/+36
Add a function to query diagnostics counters from the firmware. Signed-off-by: Mark Bloch <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03net/mlx4: Add diagnostic counters capability bitMark Bloch1-0/+4
Add a bit that indicates if the firmware supports per port diagnostic counters. Signed-off-by: Mark Bloch <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03Use smaller 512 byte messages for portmapper messagesMustafa Ismail1-1/+2
Portmapper messages are short and do not occupy more than 512 bytes. Lower portmapper message size to 512 bytes. This change significantly reduces the amount of memory needed when trying to establish a large number of connections simultaneously. The old value is based on page size. Signed-off-by: Faisal Latif <[email protected]> Signed-off-by: Mustafa Ismail <[email protected]> Signed-off-by: Shiraz Saleem <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03IB/ipoib: Report SG feature regardless of HW UD CSUM capabilityYuval Shaia2-7/+6
Decouple SG support from HW ability to do UD checksum. This coupling is for historical reasons and removed with 'commit ec5f06156423 ("net: Kill link between CSUM and SG features.")' During driver load it is assumed that device does not supports SG. The final decision is taken after creating UD QP based on device capability. Signed-off-by: Yuval Shaia <[email protected]> Reviewed-by: Jason Gunthorpe <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03IB/mlx4: Don't use GFP_ATOMIC for CQ resize structRoland Dreier1-2/+2
We allocate a small tracking structure as part of mlx4_ib_resize_cq(). However, we don't need to use GFP_ATOMIC -- immediately after the allocation, we call mlx4_cq_resize(), which allocates a command mailbox with GFP_KERNEL and then sleeps on a firmware command, so we better not be in an atomic context. This actually has a real impact, because when this GFP_ATOMIC allocation fails (and GFP_ATOMIC does fail in practice) then a userspace consumer resizing a CQ will get a spurious failure that we can easily avoid. Signed-off-by: Roland Dreier <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03IB/hfi1: Disable by defaultBart Van Assche1-1/+0
There is a strict policy in the Linux kernel that new drivers must be disabled by default. Hence leave out the "default m" line from Kconfig. Fixes: f48ad614c100 ("IB/hfi1: Move driver out of staging") Signed-off-by: Bart Van Assche <[email protected]> Cc: Jubin John <[email protected]> Cc: Dennis Dalessandro <[email protected]> Cc: Ira Weiny <[email protected]> Cc: Mike Marciniszyn <[email protected]> Cc: <[email protected]> # v4.7+ Acked-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-03IB/rdmavt: Disable by defaultBart Van Assche1-1/+0
There is a strict policy in the Linux kernel that new drivers must be disabled by default. Hence leave out the "default m" line from Kconfig. Fixes: 0194621b2253 ("IB/rdmavt: Create module framework and handle driver registration") Signed-off-by: Bart Van Assche <[email protected]> Cc: Jubin John <[email protected]> Cc: Dennis Dalessandro <[email protected]> Cc: Ira Weiny <[email protected]> Cc: Mike Marciniszyn <[email protected]> Cc: <[email protected]> # v4.6+ Signed-off-by: Doug Ledford <[email protected]>
2016-08-03Merge branch 'i40iw' into k.o/for-4.8Doug Ledford7-40/+56
2016-08-03Merge branches 'cxgb4' and 'mlx5' into k.o/for-4.8Doug Ledford11-76/+83
2016-08-04ACPI / EC: Work around method reentrancy limit in ACPICA for _QxxLv Zheng1-4/+37
A regression is caused by the following commit: Commit: 02b771b64b73226052d6e731a0987db3b47281e9 Subject: ACPI / EC: Fix an issue caused by the serialized _Qxx evaluations In this commit, using system workqueue causes that the maximum parallel executions of _Qxx can exceed 255. This violates the method reentrancy limit in ACPICA and generates the following error log: ACPI Error: Method reached maximum reentrancy limit (255) (20150818/dsmethod-341) This patch creates a seperate workqueue and limits the number of parallel _Qxx evaluations down to a configurable value (can be tuned against number of online CPUs). Since EC events are handled after driver probe, we can create the workqueue in acpi_ec_init(). Fixes: 02b771b64b73 (ACPI / EC: Fix an issue caused by the serialized _Qxx evaluations) Link: https://bugzilla.kernel.org/show_bug.cgi?id=135691 Cc: 4.3+ <[email protected]> # 4.3+ Reported-and-tested-by: Helen Buus <[email protected]> Signed-off-by: Lv Zheng <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2016-08-03drm: i915: fix build when DEBUG_FS is disabledLinus Torvalds1-2/+2
This clearly had never gotten tested, probably because you need a fairly minimal configuration in order to disable DEBUG_FS (several other options select it). The dummy inline functions that were used for the no-DEBUG_FS case were missing the argument names in the declarations. Fixes: 1dac891c1c95 ("drm/i915: Register debugfs interface last") Reported-and-tested-by: Jörg Otte <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2016-08-03dm raid: constructor fails on non-zero incompat_featuresHeinz Mauelshagen1-0/+1
When lvm2 userspace requests a RaidLV repair, it sets the rebuild constructor flag on the new replacement DataLVs but does not clear the respective MetaLVs. Hence the superblock that is loaded from such new MetaLVs may have a non-zero incompat_features member and the constructor will fail with false-positive on incompat_features. Solve by initializing the incompat_features member properly. Signed-off-by: Heinz Mauelshagen <[email protected]> Signed-off-by: Mike Snitzer <[email protected]>
2016-08-03dm raid: fix processing of max_recovery_rate constructor flagHeinz Mauelshagen1-1/+1
__CTR_FLAG_MIN_RECOVERY_RATE was used instead of __CTR_FLAG_MAX_RECOVERY_RATE thus causing max_recovery_rate to be rejected in case min_recovery_rate was already set. Signed-off-by: Heinz Mauelshagen <[email protected]> Signed-off-by: Mike Snitzer <[email protected]>
2016-08-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds44-86/+183
Pull networking fixes from David Miller: 1) Fix several cases of missing of_node_put() calls in various networking drivers. From Peter Chen. 2) Don't try to remove unconfigured VLANs in qed driver, from Yuval Mintz. 3) Unbalanced locking in TIPC error handling, from Wei Yongjun. 4) Fix lockups in CPDMA driver, from Grygorii Strashko. 5) More MACSEC refcount et al fixes, from Sabrina Dubroca. 6) Fix MAC address setting in r8169 during runtime suspend, from Chun-Hao Lin. 7) Various printf format specifier fixes, from Heinrich Schuchardt. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits) qed: Fail driver load in 100g MSI mode. ethernet: ti: davinci_emac: add missing of_node_put after calling of_parse_phandle ethernet: stmicro: stmmac: add missing of_node_put after calling of_parse_phandle ethernet: stmicro: stmmac: dwmac-socfpga: add missing of_node_put after calling of_parse_phandle ethernet: renesas: sh_eth: add missing of_node_put after calling of_parse_phandle ethernet: renesas: ravb_main: add missing of_node_put after calling of_parse_phandle ethernet: marvell: pxa168_eth: add missing of_node_put after calling of_parse_phandle ethernet: marvell: mvpp2: add missing of_node_put after calling of_parse_phandle ethernet: marvell: mvneta: add missing of_node_put after calling of_parse_phandle ethernet: hisilicon: hns: hns_dsaf_main: add missing of_node_put after calling of_parse_phandle ethernet: hisilicon: hns: hns_dsaf_mac: add missing of_node_put after calling of_parse_phandle ethernet: cavium: octeon: add missing of_node_put after calling of_parse_phandle ethernet: aurora: nb8800: add missing of_node_put after calling of_parse_phandle ethernet: arc: emac_main: add missing of_node_put after calling of_parse_phandle ethernet: apm: xgene: add missing of_node_put after calling of_parse_phandle ethernet: altera: add missing of_node_put 8139too: fix system hang when there is a tx timeout event. qed: Fix error return code in qed_resc_alloc() net: qlcnic: avoid superfluous assignement dsa: b53: remove redundant if ...
2016-08-03Merge branch '4.7-fixes' into mips-for-linux-nextRalf Baechle57-390/+643
2016-08-03Input: add driver for SiS 9200 family I2C touchscreen controllersMika Penttilä3-0/+426
This is a driver for SiS 9200 family touchscreen controllers using I2C bus. Signed-off-by: Mika Penttilä <[email protected]> Acked-by: Tammy Tseng <[email protected]> Acked-by: Yuger Yu <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2016-08-02Input: ili210x - fix permissions on "calibrate" attributeDmitry Torokhov1-1/+1
"calibrate" attribute does not provide "show" methods and thus we should not mark it as readable. Signed-off-by: Dmitry Torokhov <[email protected]>
2016-08-02Input: elan_i2c - properly wake up touchpad on ASUS laptopsKT Liao1-16/+63
Some ASUS laptops were shipped with touchpads that require to be woken up first, before trying to switch them into absolute reporting mode, otherwise touchpad would fail to work while flooding the logs with: elan_i2c i2c-ELAN1000:00: invalid report id data (1) Among affected devices are Asus E202SA, N552VW, X456UF, UX305CA, and others. We detect such devices by checking the IC type and product ID numbers and adjusting order of operations accordingly. Signed-off-by: KT Liao <[email protected]> Reported-by: Chris Chiu <[email protected]> Reported-by: Vlad Glagolev <[email protected]> Tested-by: Vlad Glagolev <[email protected]> Cc: [email protected] Signed-off-by: Dmitry Torokhov <[email protected]>
2016-08-02Input: add driver for Silead touchscreensRobert Dolca3-0/+581
This driver adds support for Silead touchscreens. It has been tested with GSL1680 and GSL3680 touch panels. It supports ACPI and device tree enumeration. Screen resolution, the maximum number of fingers supported and firmware name are configurable. Signed-off-by: Robert Dolca <[email protected]> Signed-off-by: Daniel Jansen <[email protected]> Signed-off-by: Hans de Goede <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2016-08-02Input: elantech - fix debug dump of the current packetBenjamin Tissoires1-6/+2
The use of mixed psmouse_printk() and printk creates 2 lines in the log, while the use of %*ph solves everything. Signed-off-by: Benjamin Tissoires <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2016-08-02IB/hfi1: Add cache evict LRU listDean Luick1-10/+19
The original code used a LRU list to evict nodes which were least recently used. For correctness the evict code was moved under the handler->lock, now add back the LRU list. Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Dean Luick <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-02IB/hfi1: Fix memory leak during unexpected shutdownIra Weiny1-13/+31
During an unexpected shutdown, references to tid_rb_node were NULL'ed out without properly being released. Fix this by calling clear_tid_node in the mmu notifier remove callback rather than after these callbacks are called. Reviewed-by: Dean Luick <[email protected]> Signed-off-by: Ira Weiny <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-02IB/hfi1: Remove unneeded mm argument in remove functionDean Luick4-15/+10
The reworked mmu_rb interface allows the unused mm argument to be removed. Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Dean Luick <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-02IB/hfi1: Consistently call ops->remove outside spinlockDean Luick4-23/+84
The ops->remove() callback was called by hfi1_mmu_unregister() with a NULL mm argument while holding a spinlock. In the case of sdma_rb_remove() this caused it to pass current->mm to hfi1_release_user_pages() This had 2 problems. First this would attempt to acquire the mmap_sem under a spin lock. Second the use of current->mm is not always guaranteed to be the proper mm when the fd is being closed. Rather than depend on this implicit behavior we move all calls to ops->remove outside of the spinlock. This also allows the correct mm to be used in the remove callback without fear of deadlock. Because the MMU notifier is not guaranteed to hold mm->mmap_sem, but usually does, we must delay all remove callbacks until out of the notifier, when the callbacks can take the mmap_sem if they need to. Code comments were added to clarify what the expectations are for the users of the mmu rb tree. Suggested-by: Jim Foraker <[email protected]> Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Dean Luick <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-02IB/hfi1: Use evict mmu rb operationDean Luick2-73/+47
Use the new cache evict operation in the SDMA code. This allows the cache to properly coordinate evicts and removes, preventing any race. With this change, the separate list, lock, and race flag are not needed. Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Dean Luick <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-02IB/hfi1: Add evict operation to the mmu rb handlerDean Luick2-0/+38
Allow users to clear nodes from the rb tree based on their evict callback. Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Dean Luick <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2016-08-02IB/hfi1: Fix TID caching actionsDean Luick2-9/+11
Per file descriptor TID caching actions depend on a global that can change midway through the lifetime of that file descriptor. Make the use of caching consistent for the life of the file descriptor by using the presence of the cache handler to decide when to use the cache functions. Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Dean Luick <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
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