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2017-12-20net: Add asynchronous callbacks for xfrm on layer 2.Steffen Klassert
This patch implements asynchronous crypto callbacks and a backlog handler that can be used when IPsec is done at layer 2 in the TX path. It also extends the skb validate functions so that we can update the driver transmit return codes based on async crypto operation or to indicate that we queued the packet in a backlog queue. Joint work with: Aviv Heller <avivh@mellanox.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-12-20xfrm: Separate ESP handling from segmentation for GRO packets.Steffen Klassert
We change the ESP GSO handlers to only segment the packets. The ESP handling and encryption is defered to validate_xmit_xfrm() where this is done for non GRO packets too. This makes the code more robust and prepares for asynchronous crypto handling. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-12-20gpio: sysfs: change 'value' attribute to preallocChristophe Leroy
The GPIO 'value' attribute is time critical. A small bench with 'perf record' on the app below shows that 80% of the time spent in sysfs_kf_seq_show() is spent in memset() for zeroising the buffer. |--67.48%--sysfs_kf_seq_show | | | |--54.40%--memset | | | |--11.49%--dev_attr_show | | | | | |--10.06%--value_show | | | | | | | |--4.75%--sprintf | | | | | This patch changes the attribute type to prealloc, eliminating the need to zeroise the buffer at each read. 'perf record' gives the following result. |--42.41%--sysfs_kf_read | | | |--39.73%--dev_attr_show | | | | | |--38.23%--value_show | | | | | | | |--29.22%--sprintf | | | | | Test done with the following small app: int main(int argc, char **argv) { int fd = open(argv[1], O_RDONLY); for (;;) { int buf[512]; read(fd, buf, 512); lseek(fd, 0, SEEK_SET); } exit(0); } Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-12-19clk: add clk_rate_exclusive apiJerome Brunet
Using clock rate protection, we can now provide a way for clock consumer to claim exclusive control over the rate of a producer So far, rate change operations have been a "last write wins" affair. This changes allows drivers to explicitly protect against this behavior, if required. Of course, if exclusivity over a producer is claimed more than once, the rate is effectively locked as exclusivity cannot be preempted Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Michael Turquette <mturquette@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com> Link: lkml.kernel.org/r/20171201215200.23523-10-jbrunet@baylibre.com
2017-12-19clk: add clock protection mechanism to clk coreJerome Brunet
The patch adds clk_core_protect and clk_core_unprotect to the internal CCF API. These functions allow to set a new constraint along the clock tree to prevent any change, even indirect, which may result in rate change or glitch. Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Michael Turquette <mturquette@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com> Link: lkml.kernel.org/r/20171201215200.23523-7-jbrunet@baylibre.com
2017-12-19net/mlx5: Cleanup IRQs in case of unload failureMoshe Shemesh
When mlx5_stop_eqs fails to destroy any of the eqs it returns with an error. In such failure flow the function will return without releasing all EQs irqs and then pci_free_irq_vectors will fail. Fix by only warn on destroy EQ failure and continue to release other EQs and their irqs. It fixes the following kernel trace: kernel: kernel BUG at drivers/pci/msi.c:352! ... ... kernel: Call Trace: kernel: pci_disable_msix+0xd3/0x100 kernel: pci_free_irq_vectors+0xe/0x20 kernel: mlx5_load_one.isra.17+0x9f5/0xec0 [mlx5_core] Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters") Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19net/mlx5: Fix rate limit packet pacing naming and structEran Ben Elisha
In mlx5_ifc, struct size was not complete, and thus driver was sending garbage after the last defined field. Fixed it by adding reserved field to complete the struct size. In addition, rename all set_rate_limit to set_pp_rate_limit to be compliant with the Firmware <-> Driver definition. Fixes: 7486216b3a0b ("{net,IB}/mlx5: mlx5_ifc updates") Fixes: 1466cc5b23d1 ("net/mlx5: Rate limit tables support") Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19Revert "mlx5: move affinity hints assignments to generic code"Saeed Mahameed
Before the offending commit, mlx5 core did the IRQ affinity itself, and it seems that the new generic code have some drawbacks and one of them is the lack for user ability to modify irq affinity after the initial affinity values got assigned. The issue is still being discussed and a solution in the new generic code is required, until then we need to revert this patch. This fixes the following issue: echo <new affinity> > /proc/irq/<x>/smp_affinity fails with -EIO This reverts commit a435393acafbf0ecff4deb3e3cb554b34f0d0664. Note: kept mlx5_get_vector_affinity in include/linux/mlx5/driver.h since it is used in mlx5_ib driver. Fixes: a435393acafb ("mlx5: move affinity hints assignments to generic code") Cc: Sagi Grimberg <sagi@grimberg.me> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jes Sorensen <jsorensen@fb.com> Reported-by: Jes Sorensen <jsorensen@fb.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19net: Introduce NETIF_F_GRO_HW.Michael Chan
Introduce NETIF_F_GRO_HW feature flag for NICs that support hardware GRO. With this flag, we can now independently turn on or off hardware GRO when GRO is on. Previously, drivers were using NETIF_F_GRO to control hardware GRO and so it cannot be independently turned on or off without affecting GRO. Hardware GRO (just like GRO) guarantees that packets can be re-segmented by TSO/GSO to reconstruct the original packet stream. Logically, GRO_HW should depend on GRO since it a subset, but we will let individual drivers enforce this dependency as they see fit. Since NETIF_F_GRO is not propagated between upper and lower devices, NETIF_F_GRO_HW should follow suit since it is a subset of GRO. In other words, a lower device can independent have GRO/GRO_HW enabled or disabled and no feature propagation is required. This will preserve the current GRO behavior. This can be changed later if we decide to propagate GRO/ GRO_HW/RXCSUM from upper to lower devices. Cc: Ariel Elior <Ariel.Elior@cavium.com> Cc: everest-linux-l2@cavium.com Signed-off-by: Michael Chan <michael.chan@broadcom.com> Acked-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19sock: Hide unused variable when !CONFIG_PROC_FS.Tonghao Zhang
When CONFIG_PROC_FS is disabled, we will not use the prot_inuse counter. This adds an #ifdef to hide the variable definition in that case. This is not a bugfix. But we can save bytes when there are many network namespace. Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Martin Zhang <zhangjunweimartin@didichuxing.com> Signed-off-by: Tonghao Zhang <zhangtonghao@didichuxing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19sock: Move the socket inuse to namespace.Tonghao Zhang
In some case, we want to know how many sockets are in use in different _net_ namespaces. It's a key resource metric. This patch add a member in struct netns_core. This is a counter for socket-inuse in the _net_ namespace. The patch will add/sub counter in the sk_alloc, sk_clone_lock and __sk_free. This patch will not counter the socket created in kernel. It's not very useful for userspace to know how many kernel sockets we created. The main reasons for doing this are that: 1. When linux calls the 'do_exit' for process to exit, the functions 'exit_task_namespaces' and 'exit_task_work' will be called sequentially. 'exit_task_namespaces' may have destroyed the _net_ namespace, but 'sock_release' called in 'exit_task_work' may use the _net_ namespace if we counter the socket-inuse in sock_release. 2. socket and sock are in pair. More important, sock holds the _net_ namespace. We counter the socket-inuse in sock, for avoiding holding _net_ namespace again in socket. It's a easy way to maintain the code. Signed-off-by: Martin Zhang <zhangjunweimartin@didichuxing.com> Signed-off-by: Tonghao Zhang <zhangtonghao@didichuxing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19sock: Change the netns_core member name.Tonghao Zhang
Change the member name will make the code more readable. This patch will be used in next patch. Signed-off-by: Martin Zhang <zhangjunweimartin@didichuxing.com> Signed-off-by: Tonghao Zhang <zhangtonghao@didichuxing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19Merge tag 'mac80211-for-davem-2017-12-19' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== A few more fixes: * hwsim: - set To-DS bit in some frames missing it - fix sleeping in atomic * nl80211: - doc cleanup - fix locking in an error path * build: - don't append to created certs C files - ship certificate pre-hexdumped ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19media: dvb_frontend: add physical layer scrambling supportAthanasios Oikonomou
This commit adds a new property DTV_SCRAMBLING_SEQUENCE_INDEX. This 18 bit field, when present, carries the index of the DVB-S2 physical layer scrambling sequence as defined in clause 5.5.4 of EN 302 307. There is no explicit signalling method to convey scrambling sequence index to the receiver. If S2 satellite delivery system descriptor is available it can be used to read the scrambling sequence index (EN 300 468 table 41). By default, gold scrambling sequence index 0 is used. The valid scrambling sequence index range is from 0 to 262142. Increase the DVB API version in order userspace to be aware of the changes. Signed-off-by: Athanasios Oikonomou <athoik@gmail.com> Acked-by: Ralph Metzler <rjkm@metzlerbros.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19gpu: ipu-v3: prg: add modifier supportLucas Stach
Allow to pass through the modifier to the PRE unit and extend the format check with the supported modifiers. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-12-19BackMerge tag 'v4.15-rc4' into drm-nextDave Airlie
Linux 4.15-rc4 Daniel requested it to fix some messy conflicts.
2017-12-19Merge remote-tracking branches 'spi/fix/armada', 'spi/fix/atmel', ↵Mark Brown
'spi/fix/doc', 'spi/fix/imx', 'spi/fix/rspi', 'spi/fix/sun4i' and 'spi/fix/xilinx' into spi-linus
2017-12-19usb: pd: fix the offset for SVID specific commandsHeikki Krogerus
The SVID specific commands in the Command field of the Structured VDM Header start from 16, not 10. Changing the value used in VDO_CMD_VENDOR() macro from 10 to 0x10. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19soundwire: intel: Add Intel init moduleVinod Koul
The SoundWire Master is implemented as part of Audio controller in Intel platforms. Add a init module which creates SoundWire Master platform devices based on the links supported in the hardware. Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19soundwire: intel: Add Intel Master driverVinod Koul
Some Intel platforms have SoundWire Master, so add Intel SoundWire Master driver which uses Cadence module. This patch adds probe and initialization routines for Intel Master driver. Signed-off-by: Hardik T Shah <hardik.t.shah@intel.com> Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19soundwire: Add slave status handlingVinod Koul
Add status handling API sdw_handle_slave_status() to handle Slave status changes. Signed-off-by: Hardik T Shah <hardik.t.shah@intel.com> Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19soundwire: Add Slave status handling helpersSanyog Kale
SoundWire Slaves report status to bus. Add helpers to handle the status changes. Signed-off-by: Hardik T Shah <hardik.t.shah@intel.com> Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19soundwire: Add IO transferVinod Koul
SoundWire bus supports read or write register(s) for SoundWire Slave device. sdw_read() and sdw_write() APIs are provided for single register read/write. sdw_nread() and sdw_nwrite() for operations on contiguous registers. Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19soundwire: Add SoundWire MIPI defined registersSanyog Kale
MIPI SoundWire spec defines standard SoundWire registers mandatory for SoundWire Slave devices, so add them. Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19soundwire: Add MIPI DisCo property helpersVinod Koul
MIPI Discovery And Configuration (DisCo) Specification for SoundWire specifies properties to be implemented for SoundWire Masters and Slaves. The DisCo spec doesn't mandate these properties. However, SDW bus cannot work without knowing these values. The helper functions read the Master and Slave properties. Implementers of Master or Slave drivers can use any of the below three mechanisms: a) Use these APIs here as .read_prop() callback for Master and Slave b) Implement own methods and set those as .read_prop(), but invoke APIs in this file for generic read and override the values with platform specific data c) Implement ones own methods which do not use anything provided here Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19soundwire: Add Master registrationVinod Koul
A Master adds a SoundWire bus instance which scans the firmware provided for device description. In this patch we scan ACPI namespaces and create SoundWire Slave devices based on ACPI description Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19soundwire: Add SoundWire bus typeVinod Koul
This adds the base SoundWire bus type, bus and driver registration. along with changes to module device table for new SoundWire device type. Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19regmap: add SLIMbus supportSrinivas Kandagatla
This patch adds support to read/write SLIMbus value elements. Currently it only supports byte read/write. Adding this support in regmap would give codec drivers more flexibility when there are more than 2 control interfaces like SLIMbus, i2c. Without this patch each codec driver has to directly call SLIMbus value element apis, and this could would get messy once we want to add i2c interface to it. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviwed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19slimbus: Add messaging APIs to slimbus frameworkSagar Dharia
SLIMbus devices use value-element, and information elements to control device parameters (e.g. value element is used to represent gain for codec, information element is used to represent interrupt status for codec when codec interrupt fires). Messaging APIs are used to set/get these value and information elements. SLIMbus specification uses 8-bit "transaction IDs" for messages where a read-value is anticipated. Framework uses a table of pointers to store those TIDs and responds back to the caller in O(1). Caller can do synchronous and asynchronous reads/writes. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviwed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19slimbus: core: Add slim controllers supportSagar Dharia
This patch adds support to slim controllers in the slim core, including some utility functions invoked by the controller and slim device drivers. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviwed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19slimbus: Add SLIMbus bus typeSagar Dharia
SLIMbus (Serial Low Power Interchip Media Bus) is a specification developed by MIPI (Mobile Industry Processor Interface) alliance. SLIMbus is a 2-wire implementation, which is used to communicate with peripheral components like audio-codec. SLIMbus uses Time-Division-Multiplexing to accommodate multiple data channels, and control channel. Control channel has messages to do device-enumeration, messages to send/receive control-data to/from SLIMbus devices, messages for port/channel management, and messages to do bandwidth allocation. The framework supports multiple instances of the bus (1 controller per bus), and multiple slave devices per controller. This patch adds support to basic silmbus core which includes support to SLIMbus type, slimbus device registeration and some basic data structures. Signed-off-by: Sagar Dharia <sdharia@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviwed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19siox: add support for tracingUwe Kleine-König
Implement tracing for SIOX. There are events for the data that is written to the bus and for data being read from it. Acked-by: Gavin Schenk <g.schenk@eckelmann.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19cfg80211: Scan results to also report the per chain signal strengthSunil Dutt
This commit enhances the scan results to report the per chain signal strength based on the latest BSS update. This provides similar information to what is already available through STA information. Signed-off-by: Sunil Dutt <usdutt@qti.qualcomm.com> Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-12-19Revert "mac80211: Add TXQ scheduling API"Johannes Berg
This reverts commit e937b8da5a591f141fe41aa48a2e898df9888c95. Turns out that a new driver (mt76) is coming in through Kalle's tree, and will conflict with this. It also has some conflicting requirements, so we'll revisit this later. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-12-19Revert "mac80211: Add airtime account and scheduling to TXQs"Johannes Berg
This reverts commit b0d52ad821843a6c5badebd80feef9f871904fa6. We need to revert the TXQ scheduling API due to conflicts with a new driver, and this depends on that API. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-12-19siox: new driver framework for eckelmann SIOXUwe Kleine-König
SIOX is a bus system invented at Eckelmann AG to control their building management and refrigeration systems. Traditionally the bus was implemented on custom microcontrollers, today Linux based machines are in use, too. The topology on a SIOX bus looks as follows: ,------->--DCLK-->---------------+----------------------. ^ v v ,--------. ,----------------------. ,------ | | | ,--------------. | | | |--->--DOUT-->---|->-|shift register|->-|--->---| | | | `--------------' | | | master | | device | | device | | | ,--------------. | | | |---<--DIN---<---|-<-|shift register|-<-|---<---| | | | `--------------' | | `--------' `----------------------' `------ v ^ ^ `----------DLD-------------------+----------------------' There are two control lines (DCLK and DLD) driven from the bus master to all devices in parallel and two daisy chained data lines, one for input and one for output. DCLK is the clock to shift both chains by a single bit. On an edge of DLD the devices latch both their input and output shift registers. This patch adds a framework for this bus type. Acked-by: Gavin Schenk <g.schenk@eckelmann.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19nl80211: Remove obsolete kerneldoc lineJonathan Corbet
Commit ca986ad9bcd3 (nl80211: allow multiple active scheduled scan requests) removed WIPHY_FLAG_SUPPORTS_SCHED_SCAN but left the kerneldoc description in place, leading to this docs-build warning: ./include/net/cfg80211.h:3278: warning: Excess enum value 'WIPHY_FLAG_SUPPORTS_SCHED_SCAN' description in 'wiphy_flags' Remove the line and gain a bit of peace. Signed-off-by: Jonathan Corbet <corbet@lwn.net> Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-12-19xfrm: Reinject transport-mode packets through taskletHerbert Xu
This is an old bugbear of mine: https://www.mail-archive.com/netdev@vger.kernel.org/msg03894.html By crafting special packets, it is possible to cause recursion in our kernel when processing transport-mode packets at levels that are only limited by packet size. The easiest one is with DNAT, but an even worse one is where UDP encapsulation is used in which case you just have to insert an UDP encapsulation header in between each level of recursion. This patch avoids this problem by reinjecting tranport-mode packets through a tasklet. Fixes: b05e106698d9 ("[IPV4/6]: Netfilter IPsec input hooks") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-12-18PCI: Clean up whitespace in linux/pci.h, pci/pci.hBjorn Helgaas
Clean up whitespace, capitalization, etc. in comments. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-12-18switchtec: Add Global Fabric Manager Server (GFMS) eventLogan Gunthorpe
Add a new event type that is newly exposed by recent firmware. The event will never occur if the firmware is too old. If user space tries to use this event in an older kernel, it will just get an EINVAL which is perfectly acceptable in the existing user space code. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-12-18PCI/ASPM: Unexport internal ASPM interfacesBjorn Helgaas
Several of the interfaces defined in include/linux/pci-aspm.h are used only internally from the PCI core: pcie_aspm_init_link_state() pcie_aspm_exit_link_state() pcie_aspm_pm_state_change() pcie_aspm_powersave_config_link() pcie_aspm_create_sysfs_dev_files() pcie_aspm_remove_sysfs_dev_files() Move these to the internal drivers/pci/pci.h header so they don't clutter the driver interface. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-12-18PCI/ASPM: Enable Latency Tolerance Reporting when supportedBjorn Helgaas
Enable Latency Tolerance Reporting (LTR). Note that LTR must be enabled in the Root Port first, and must not be enabled in any downstream device unless the Root Port and all intermediate Switches also support LTR. See PCIe r3.1, sec 6.18. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Vidya Sagar <vidyas@nvidia.com>
2017-12-19bpf/cgroup: fix a verification error for a CGROUP_DEVICE type progYonghong Song
The tools/testing/selftests/bpf test program test_dev_cgroup fails with the following error when compiled with llvm 6.0. (I did not try with earlier versions.) libbpf: load bpf program failed: Permission denied libbpf: -- BEGIN DUMP LOG --- libbpf: 0: (61) r2 = *(u32 *)(r1 +4) 1: (b7) r0 = 0 2: (55) if r2 != 0x1 goto pc+8 R0=inv0 R1=ctx(id=0,off=0,imm=0) R2=inv1 R10=fp0 3: (69) r2 = *(u16 *)(r1 +0) invalid bpf_context access off=0 size=2 ... The culprit is the following statement in dev_cgroup.c: short type = ctx->access_type & 0xFFFF; This code is typical as the ctx->access_type is assigned as below in kernel/bpf/cgroup.c: struct bpf_cgroup_dev_ctx ctx = { .access_type = (access << 16) | dev_type, .major = major, .minor = minor, }; The compiler converts it to u16 access while the verifier cgroup_dev_is_valid_access rejects any non u32 access. This patch permits the field access_type to be accessible with type u16 and u8 as well. Signed-off-by: Yonghong Song <yhs@fb.com> Tested-by: Roman Gushchin <guro@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-18IB/{core, umad, cm}: Rename ib_init_ah_from_wc to ib_init_ah_attr_from_wcParav Pandit
Currently ib_init_ah_from_wc initializes address handle attributes and not the address handle object itself. To avoid confusion between ah_attr vs ah, ib_init_ah_from_wc is renamed to ib_init_ah_attr_from_wc to reflect that its initialzes ah_attr. Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-12-18IB/{core, cm, cma, ipoib}: Rename ib_init_ah_from_path to ↵Parav Pandit
ib_init_ah_attr_from_path Since ib_init_ah_from_path initializes the address handle attribute, it is renamed to reflect so. Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-12-18IB/{core, ipoib}: Simplify ib_find_gid to search only for IB link layerParav Pandit
Currently there are no users of ib_find_gid for RoCE transport. It is only used by IPoIB. Therefore its simplified to ignore RoCE ports and GID type check which was previously done for every port. Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-12-18RDMA/{core, cma}: Simplify rdma_translate_ipParav Pandit
Since no caller needs vlan, rdma_translate_ip is simplified to avoid vlan pointer. Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-12-18IB/core: Removed unused functionParav Pandit
rdma_addr_find_smac_by_sgid() is exported symbol not used by any kernel module. Therefore its removed. Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-12-18mfd: cros_ec: Introduce RTC commands and events definitions.Stephen Barber
The EC can function as a simple RT, this patch adds the RTC related definitions needed by the rtc-cros-ec driver. Signed-off-by: Stephen Barber <smbarber@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Benson Leung <bleung@chromium.org> Reviewed-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-12-18block: fix blk_rq_append_bioJens Axboe
Commit caa4b02476e3(blk-map: call blk_queue_bounce from blk_rq_append_bio) moves blk_queue_bounce() into blk_rq_append_bio(), but don't consider the fact that the bounced bio becomes invisible to caller since the parameter type is 'struct bio *'. Make it a pointer to a pointer to a bio, so the caller sees the right bio also after a bounce. Fixes: caa4b02476e3 ("blk-map: call blk_queue_bounce from blk_rq_append_bio") Cc: Christoph Hellwig <hch@lst.de> Reported-by: Michele Ballabio <barra_cuda@katamail.com> (handling failure of blk_rq_append_bio(), only call bio_get() after blk_rq_append_bio() returns OK) Tested-by: Michele Ballabio <barra_cuda@katamail.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
generated by cgit (git 2.34.1) at 2025-09-16 20:52:28 +0000