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2020-03-20cfg80211: Add support for userspace to reset stations in IBSS modeNicolas Cavallari
Sometimes, userspace is able to detect that a peer silently lost its state (like, if the peer reboots). wpa_supplicant does this for IBSS-RSN by registering for auth/deauth frames, but when it detects this, it is only able to remove the encryption keys of the peer and close its port. However, the kernel also hold other state about the station, such as BA sessions, probe response parameters and the like. They also need to be resetted correctly. This patch adds the NL80211_EXT_FEATURE_DEL_IBSS_STA feature flag indicating the driver accepts deleting stations in IBSS mode, which should send a deauth and reset the state of the station, just like in mesh point mode. Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr> Link: https://lore.kernel.org/r/20200305135754.12094-1-cavallar@lri.fr [preserve -EINVAL return] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20nl80211: add PROTECTED_TWT nl80211 extended featureShaul Triebitz
Add API for telling whether the driver supports protected TWT. The protected_twt capability in the RSNXE will be based on this. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20200131111300.891737-23-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20nl80211: pass HE operation element to the driverShaul Triebitz
Pass the AP's HE operation element to the driver. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20200131111300.891737-18-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20nl80211/cfg80211: add support for non EDCA based ranging measurementAvraham Stern
Add support for requesting that the ranging measurement will use the trigger-based / non trigger-based flow instead of the EDCA based flow. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20200131111300.891737-2-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211: update documentation about tx powerQiujun Huang
The structure member added at some point, but the kernel-doc was not updated. Signed-off-by: Qiujun Huang <hqjagain@gmail.com> Link: https://lore.kernel.org/r/20200312144424.3023-1-hqjagain@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211: handle no-preauth flag for control portMarkus Theil
This patch adds support for disabling pre-auth rx over the nl80211 control port for mac80211. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Link: https://lore.kernel.org/r/20200312091055.54257-3-markus.theil@tu-ilmenau.de [fix indentation slightly, squash feature enablement] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20nl80211: add no pre-auth attribute and ext. feature flag for ctrl. portMarkus Theil
If the nl80211 control port is used before this patch, pre-auth frames (0x88c7) are send to userspace uncoditionally. While this enables userspace to only use nl80211 on the station side, it is not always useful for APs. Furthermore, pre-auth frames are ordinary data frames and not related to the control port. Therefore it should for example be possible for pre-auth frames to be bridged onto a wired network on AP side without touching userspace. For backwards compatibility to code already using pre-auth over nl80211, this patch adds a feature flag to disable this behavior, while it remains enabled by default. An additional ext. feature flag is added to detect this from userspace. Thanks to Jouni for pointing out, that pre-auth frames should be handled as ordinary data frames. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Link: https://lore.kernel.org/r/20200312091055.54257-2-markus.theil@tu-ilmenau.de Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211_hwsim: add frame transmission support over virtioErel Geron
This allows communication with external entities. It also required fixing up the netlink policy, since NLA_UNSPEC attributes are no longer accepted. Signed-off-by: Erel Geron <erelx.geron@intel.com> [port to backports, inline the ID, use 29 as the ID as requested, drop != NULL checks, reduce ifdefs] Link: https://lore.kernel.org/r/20200305143212.c6e4c87d225b.I7ce60bf143e863dcdf0fb8040aab7168ba549b99@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20cfg80211: fix documentation formatJohannes Berg
Kernel-doc complains if the line isn't prefixed with an asterisk, fix that. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200320144110.2786ad5fb234.I369d103d11c71e39e3a3f97ed68a528c5b875f1e@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20Merge tag 'icc-5.7-rc1' of https://git.linaro.org/people/georgi.djakov/linux ↵Greg Kroah-Hartman
into char-misc-next Georgi writes: interconnect changes for 5.7 Here is a pull request with interconnect changes for the 5.7-rc1 merge window. It contains just driver updates, and these are: - Refactoring of the SDM845 driver, which is now improved to better represent the hardware. - New driver for SC7180 platforms. - New driver for OSM L3 interconnect hardware found on SDM845/SC7180 platforms. Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> * tag 'icc-5.7-rc1' of https://git.linaro.org/people/georgi.djakov/linux: interconnect: qcom: Add OSM L3 support on SC7180 dt-bindings: interconnect: Add OSM L3 DT binding on SC7180 interconnect: qcom: Add OSM L3 interconnect provider support dt-bindings: interconnect: Add OSM L3 DT bindings interconnect: qcom: Allow icc node to be used across icc providers interconnect: qcom: Add SC7180 interconnect provider driver dt-bindings: interconnect: Add Qualcomm SC7180 DT bindings interconnect: qcom: sdm845: Split qnodes into their respective NoCs interconnect: qcom: Consolidate interconnect RPMh support dt-bindings: interconnect: Update Qualcomm SDM845 DT bindings dt-bindings: interconnect: Add YAML schemas for QCOM bcm-voter dt-bindings: interconnect: Convert qcom,sdm845 to DT schema
2020-03-20psi: Move PF_MEMSTALL out of task->flagsYafang Shao
The task->flags is a 32-bits flag, in which 31 bits have already been consumed. So it is hardly to introduce other new per process flag. Currently there're still enough spaces in the bit-field section of task_struct, so we can define the memstall state as a single bit in task_struct instead. This patch also removes an out-of-date comment pointed by Matthew. Suggested-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Link: https://lkml.kernel.org/r/1584408485-1921-1-git-send-email-laoar.shao@gmail.com
2020-03-20psi: Optimize switching tasks inside shared cgroupsJohannes Weiner
When switching tasks running on a CPU, the psi state of a cgroup containing both of these tasks does not change. Right now, we don't exploit that, and can perform many unnecessary state changes in nested hierarchies, especially when most activity comes from one leaf cgroup. This patch implements an optimization where we only update cgroups whose state actually changes during a task switch. These are all cgroups that contain one task but not the other, up to the first shared ancestor. When both tasks are in the same group, we don't need to update anything at all. We can identify the first shared ancestor by walking the groups of the incoming task until we see TSK_ONCPU set on the local CPU; that's the first group that also contains the outgoing task. The new psi_task_switch() is similar to psi_task_change(). To allow code reuse, move the task flag maintenance code into a new function and the poll/avg worker wakeups into the shared psi_group_change(). Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200316191333.115523-3-hannes@cmpxchg.org
2020-03-20psi: Fix cpu.pressure for cpu.max and competing cgroupsJohannes Weiner
For simplicity, cpu pressure is defined as having more than one runnable task on a given CPU. This works on the system-level, but it has limitations in a cgrouped reality: When cpu.max is in use, it doesn't capture the time in which a task is not executing on the CPU due to throttling. Likewise, it doesn't capture the time in which a competing cgroup is occupying the CPU - meaning it only reflects cgroup-internal competitive pressure, not outside pressure. Enable tracking of currently executing tasks, and then change the definition of cpu pressure in a cgroup from NR_RUNNING > 1 to NR_RUNNING > ON_CPU which will capture the effects of cpu.max as well as competition from outside the cgroup. After this patch, a cgroup running `stress -c 1` with a cpu.max setting of 5000 10000 shows ~50% continuous CPU pressure. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200316191333.115523-2-hannes@cmpxchg.org
2020-03-20sched/core: Distribute tasks within affinity masksPaul Turner
Currently, when updating the affinity of tasks via either cpusets.cpus, or, sched_setaffinity(); tasks not currently running within the newly specified mask will be arbitrarily assigned to the first CPU within the mask. This (particularly in the case that we are restricting masks) can result in many tasks being assigned to the first CPUs of their new masks. This: 1) Can induce scheduling delays while the load-balancer has a chance to spread them between their new CPUs. 2) Can antogonize a poor load-balancer behavior where it has a difficult time recognizing that a cross-socket imbalance has been forced by an affinity mask. This change adds a new cpumask interface to allow iterated calls to distribute within the intersection of the provided masks. The cases that this mainly affects are: - modifying cpuset.cpus - when tasks join a cpuset - when modifying a task's affinity via sched_setaffinity(2) Signed-off-by: Paul Turner <pjt@google.com> Signed-off-by: Josh Don <joshdon@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Qais Yousef <qais.yousef@arm.com> Tested-by: Qais Yousef <qais.yousef@arm.com> Link: https://lkml.kernel.org/r/20200311010113.136465-1-joshdon@google.com
2020-03-20media: cec-notifier: make cec_notifier_get_conn() staticHans Verkuil
This function is no longer used by other drivers, so it can be made static. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-20media: cec-notifier: rename conn_name to port_nameHans Verkuil
This argument refers to a stable name for an HDMI port, mostly i915 (ACPI) specific. Since we'll be introducing a more generic 'name' argument as well later, rename this now to avoid confusion. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-20media: v4l: Add 1X14 14-bit greyscale media bus code definitionDaniel Glöckner
The code is called MEDIA_BUS_FMT_Y14_1X14 and behaves just like MEDIA_BUS_FMT_Y12_1X12 with two more bits. Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-20media: v4l: Add 14-bit raw greyscale pixel formatDaniel Glöckner
The new format is called V4L2_PIX_FMT_Y14. Like V4L2_PIX_FMT_Y10 and V4L2_PIX_FMT_Y12 it is stored in two bytes per pixel but has only two unused bits at the top. Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-20media: v4l: Add 14-bit raw bayer pixel formatsSakari Ailus
The formats added by this patch are: V4L2_PIX_FMT_SBGGR14 V4L2_PIX_FMT_SGBRG14 V4L2_PIX_FMT_SGRBG14 V4L2_PIX_FMT_SRGGB14 Signed-off-by: Jouni Ukkonen <jouni.ukkonen@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> [dg@emlix.com: rebased onto current media_tree] Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-19fscrypt: add FS_IOC_GET_ENCRYPTION_NONCE ioctlEric Biggers
Add an ioctl FS_IOC_GET_ENCRYPTION_NONCE which retrieves the nonce from an encrypted file or directory. The nonce is the 16-byte random value stored in the inode's encryption xattr. It is normally used together with the master key to derive the inode's actual encryption key. The nonces are needed by automated tests that verify the correctness of the ciphertext on-disk. Except for the IV_INO_LBLK_64 case, there's no way to replicate a file's ciphertext without knowing that file's nonce. The nonces aren't secret, and the existing ciphertext verification tests in xfstests retrieve them from disk using debugfs or dump.f2fs. But in environments that lack these debugging tools, getting the nonces by manually parsing the filesystem structure would be very hard. To make this important type of testing much easier, let's just add an ioctl that retrieves the nonce. Link: https://lore.kernel.org/r/20200314205052.93294-2-ebiggers@kernel.org Reviewed-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-03-19Merge branch 'for-upstream' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2020-03-19 Here's the main bluetooth-next pull request for the 5.7 kernel. - Added wideband speech support to mgmt and the ability for HCI drivers to declare support for it. - Added initial support for L2CAP Enhanced Credit Based Mode - Fixed suspend handling for several use cases - Fixed Extended Advertising related issues - Added support for Realtek 8822CE device - Added DT bindings for QTI chip WCN3991 - Cleanups to replace zero-length arrays with flexible-array members - Several other smaller cleanups & fixes ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-19sysfs: fix static inline declaration of sysfs_groups_change_owner()Christian Brauner
The CONFIG_SYSFS declaration of sysfs_group_change_owner() is different from the !CONFIG_SYSFS version and thus causes build failurs when !CONFIG_SYSFS is set. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 303a42769c4c ("sysfs: add sysfs_group{s}_change_owner()") Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-19net: tc_skbedit: Make the skbedit priority offloadablePetr Machata
The skbedit action "priority" is used for adjusting SKB priority. Allow drivers to offload the action by introducing two new skbedit getters and a new flow action, and initializing appropriately in tc_setup_flow_action(). Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-19net: tc_skbedit: Factor a helper out of is_tcf_skbedit_{mark, ptype}()Petr Machata
The two functions is_tcf_skbedit_mark() and is_tcf_skbedit_ptype() have a very similar structure. A follow-up patch will add one more such function. Instead of more cut'n'pasting, extract a helper function that checks whether a TC action is an skbedit with the required flag. Convert the two existing functions into thin wrappers around the helper. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-19Merge tag 'rxrpc-fixes-20200319' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs David Howells says: ==================== rxrpc, afs: Interruptibility fixes Here are a number of fixes for AF_RXRPC and AFS that make AFS system calls less interruptible and so less likely to leave the filesystem in an uncertain state. There's also a miscellaneous patch to make tracing consistent. (1) Firstly, abstract out the Tx space calculation in sendmsg. Much the same code is replicated in a number of places that subsequent patches are going to alter, including adding another copy. (2) Fix Tx interruptibility by allowing a kernel service, such as AFS, to request that a call be interruptible only when waiting for a call slot to become available (ie. the call has not taken place yet) or that a call be not interruptible at all (e.g. when we want to do writeback and don't want a signal interrupting a VM-induced writeback). (3) Increase the minimum delay on MSG_WAITALL for userspace sendmsg() when waiting for Tx buffer space as a 2*RTT delay is really small over 10G ethernet and a 1 jiffy timeout might be essentially 0 if at the end of the jiffy period. (4) Fix some tracing output in AFS to make it consistent with rxrpc. (5) Make sure aborted asynchronous AFS operations are tidied up properly so we don't end up with stuck rxrpc calls. (6) Make AFS client calls uninterruptible in the Rx phase. If we don't wait for the reply to be fully gathered, we can't update the local VFS state and we end up in an indeterminate state with respect to the server. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-19net: sched: Do not assume RTNL is held in tunnel key action helpersIdo Schimmel
The cited commit removed RTNL from tc_setup_flow_action(), but the function calls two tunnel key action helpers that use rtnl_dereference() to fetch the action's parameters. This leads to "suspicious RCU usage" warnings [1][2]. Change the helpers to use rcu_dereference_protected() while requiring the action's lock to be held. This is safe because the two helpers are only called from tc_setup_flow_action() which acquires the lock. [1] [ 156.950855] ============================= [ 156.955463] WARNING: suspicious RCU usage [ 156.960085] 5.6.0-rc5-custom-47426-gdfe43878d573 #2409 Not tainted [ 156.967116] ----------------------------- [ 156.971728] include/net/tc_act/tc_tunnel_key.h:31 suspicious rcu_dereference_protected() usage! [ 156.981583] [ 156.981583] other info that might help us debug this: [ 156.981583] [ 156.990675] [ 156.990675] rcu_scheduler_active = 2, debug_locks = 1 [ 156.998205] 1 lock held by tc/877: [ 157.002187] #0: ffff8881cbf7bea0 (&(&p->tcfa_lock)->rlock){+...}, at: tc_setup_flow_action+0xbe/0x4f78 [ 157.012866] [ 157.012866] stack backtrace: [ 157.017886] CPU: 2 PID: 877 Comm: tc Not tainted 5.6.0-rc5-custom-47426-gdfe43878d573 #2409 [ 157.027253] Hardware name: Mellanox Technologies Ltd. MSN2100-CB2FO/SA001017, BIOS 5.6.5 06/07/2016 [ 157.037389] Call Trace: [ 157.040170] dump_stack+0xfd/0x178 [ 157.044034] lockdep_rcu_suspicious+0x14a/0x153 [ 157.049157] tc_setup_flow_action+0x89f/0x4f78 [ 157.054227] fl_hw_replace_filter+0x375/0x640 [ 157.064348] fl_change+0x28ec/0x4f6b [ 157.088843] tc_new_tfilter+0x15e2/0x2260 [ 157.176801] rtnetlink_rcv_msg+0x8d6/0xb60 [ 157.190915] netlink_rcv_skb+0x177/0x460 [ 157.208884] rtnetlink_rcv+0x21/0x30 [ 157.212925] netlink_unicast+0x5d0/0x7f0 [ 157.227728] netlink_sendmsg+0x981/0xe90 [ 157.245416] ____sys_sendmsg+0x76d/0x8f0 [ 157.255348] ___sys_sendmsg+0x10f/0x190 [ 157.320308] __sys_sendmsg+0x115/0x1f0 [ 157.342553] __x64_sys_sendmsg+0x7d/0xc0 [ 157.346987] do_syscall_64+0xc1/0x600 [ 157.351142] entry_SYSCALL_64_after_hwframe+0x49/0xbe [2] [ 157.432346] ============================= [ 157.436937] WARNING: suspicious RCU usage [ 157.441537] 5.6.0-rc5-custom-47426-gdfe43878d573 #2409 Not tainted [ 157.448559] ----------------------------- [ 157.453204] include/net/tc_act/tc_tunnel_key.h:43 suspicious rcu_dereference_protected() usage! [ 157.463042] [ 157.463042] other info that might help us debug this: [ 157.463042] [ 157.472112] [ 157.472112] rcu_scheduler_active = 2, debug_locks = 1 [ 157.479529] 1 lock held by tc/877: [ 157.483442] #0: ffff8881cbf7bea0 (&(&p->tcfa_lock)->rlock){+...}, at: tc_setup_flow_action+0xbe/0x4f78 [ 157.494119] [ 157.494119] stack backtrace: [ 157.499114] CPU: 2 PID: 877 Comm: tc Not tainted 5.6.0-rc5-custom-47426-gdfe43878d573 #2409 [ 157.508485] Hardware name: Mellanox Technologies Ltd. MSN2100-CB2FO/SA001017, BIOS 5.6.5 06/07/2016 [ 157.518628] Call Trace: [ 157.521416] dump_stack+0xfd/0x178 [ 157.525293] lockdep_rcu_suspicious+0x14a/0x153 [ 157.530425] tc_setup_flow_action+0x993/0x4f78 [ 157.535505] fl_hw_replace_filter+0x375/0x640 [ 157.545650] fl_change+0x28ec/0x4f6b [ 157.570204] tc_new_tfilter+0x15e2/0x2260 [ 157.658199] rtnetlink_rcv_msg+0x8d6/0xb60 [ 157.672315] netlink_rcv_skb+0x177/0x460 [ 157.690278] rtnetlink_rcv+0x21/0x30 [ 157.694320] netlink_unicast+0x5d0/0x7f0 [ 157.709129] netlink_sendmsg+0x981/0xe90 [ 157.726813] ____sys_sendmsg+0x76d/0x8f0 [ 157.736725] ___sys_sendmsg+0x10f/0x190 [ 157.801721] __sys_sendmsg+0x115/0x1f0 [ 157.823967] __x64_sys_sendmsg+0x7d/0xc0 [ 157.828403] do_syscall_64+0xc1/0x600 [ 157.832558] entry_SYSCALL_64_after_hwframe+0x49/0xbe Fixes: b15e7a6e8d31 ("net: sched: don't take rtnl lock during flow_action setup") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-19net: bridge: vlan: include stats in dumps if requestedNikolay Aleksandrov
This patch adds support for vlan stats to be included when dumping vlan information. We have to dump them only when explicitly requested (thus the flag below) because that disables the vlan range compression and will make the dump significantly larger. In order to request the stats to be included we add a new dump attribute called BRIDGE_VLANDB_DUMP_FLAGS which can affect dumps with the following first flag: - BRIDGE_VLANDB_DUMPF_STATS The stats are intentionally nested and put into separate attributes to make it easier for extending later since we plan to add per-vlan mcast stats, drop stats and possibly STP stats. This is the last missing piece from the new vlan API which makes the dumped vlan information complete. A dump request which should include stats looks like: [BRIDGE_VLANDB_DUMP_FLAGS] |= BRIDGE_VLANDB_DUMPF_STATS A vlandb entry attribute with stats looks like: [BRIDGE_VLANDB_ENTRY] = { [BRIDGE_VLANDB_ENTRY_STATS] = { [BRIDGE_VLANDB_STATS_RX_BYTES] [BRIDGE_VLANDB_STATS_RX_PACKETS] ... } } Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-20Merge tag 'amd-drm-next-5.7-2020-03-19' of ↵Dave Airlie
git://people.freedesktop.org/~agd5f/linux into drm-next amd-drm-next-5.7-2020-03-19: amdgpu: - SR-IOV fixes - RAS fixes - Fallthrough cleanups - Kconfig fix for ACP - Fix load balancing with VCN - DC fixes - GPU reset fixes - Various cleanups scheduler: - Revert job distribution optimization - Add a helper to pick the least loaded scheduler Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200319175418.4237-1-alexander.deucher@amd.com
2020-03-19ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance()Steven Rostedt (VMware)
When the ring buffer was first created, the iterator followed the normal producer/consumer operations where it had both a peek() operation, that just returned the event at the current location, and a read(), that would return the event at the current location and also increment the iterator such that the next peek() or read() will return the next event. The only use of the ring_buffer_read() is currently to move the iterator to the next location and nothing now actually reads the event it returns. Rename this function to its actual use case to ring_buffer_iter_advance(), which also adds the "iter" part to the name, which is more meaningful. As the timestamp returned by ring_buffer_read() was never used, there's no reason that this new version should bother having returning it. It will also become a void function. Link: http://lkml.kernel.org/r/20200317213416.018928618@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-03-19tracing: Save off entry when peeking at next entrySteven Rostedt (VMware)
In order to have the iterator read the buffer even when it's still updating, it requires that the ring buffer iterator saves each event in a separate location outside the ring buffer such that its use is immutable. There's one use case that saves off the event returned from the ring buffer interator and calls it again to look at the next event, before going back to use the first event. As the ring buffer iterator will only have a single copy, this use case will no longer be supported. Instead, have the one use case create its own buffer to store the first event when looking at the next event. This way, when looking at the first event again, it wont be corrupted by the second read. Link: http://lkml.kernel.org/r/20200317213415.722539921@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-03-19Merge branch 'perf/urgent' into perf/core, to pick up fixesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-03-19phy: tegra: xusb: Add support to get companion USB 3 portNagarjuna Kristam
Tegra XUSB host, device mode driver requires the USB 3 companion port number for corresponding USB 2 port. Add API to retrieve the same. Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com> Reviewed-by: JC Kuo <jckuo@nvidia.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-03-19bpf: Support llvm-objcopy for vmlinux BTFFangrui Song
Simplify gen_btf logic to make it work with llvm-objcopy. The existing 'file format' and 'architecture' parsing logic is brittle and does not work with llvm-objcopy/llvm-objdump. 'file format' output of llvm-objdump>=11 will match GNU objdump, but 'architecture' (bfdarch) may not. .BTF in .tmp_vmlinux.btf is non-SHF_ALLOC. Add the SHF_ALLOC flag because it is part of vmlinux image used for introspection. C code can reference the section via linker script defined __start_BTF and __stop_BTF. This fixes a small problem that previous .BTF had the SHF_WRITE flag (objcopy -I binary -O elf* synthesized .data). Additionally, `objcopy -I binary` synthesized symbols _binary__btf_vmlinux_bin_start and _binary__btf_vmlinux_bin_stop (not used elsewhere) are replaced with more commonplace __start_BTF and __stop_BTF. Add 2>/dev/null because GNU objcopy (but not llvm-objcopy) warns "empty loadable segment detected at vaddr=0xffffffff81000000, is this intentional?" We use a dd command to change the e_type field in the ELF header from ET_EXEC to ET_REL so that lld will accept .btf.vmlinux.bin.o. Accepting ET_EXEC as an input file is an extremely rare GNU ld feature that lld does not intend to support, because this is error-prone. The output section description .BTF in include/asm-generic/vmlinux.lds.h avoids potential subtle orphan section placement issues and suppresses --orphan-handling=warn warnings. Fixes: df786c9b9476 ("bpf: Force .BTF section start to zero when dumping from vmlinux") Fixes: cb0cc635c7a9 ("powerpc: Include .BTF section") Reported-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Fangrui Song <maskray@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Stanislav Fomichev <sdf@google.com> Tested-by: Andrii Nakryiko <andriin@fb.com> Reviewed-by: Stanislav Fomichev <sdf@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Link: https://github.com/ClangBuiltLinux/linux/issues/871 Link: https://lore.kernel.org/bpf/20200318222746.173648-1-maskray@google.com
2020-03-19irqchip/gic-v4.1: Ensure mutual exclusion between vPE affinity change and RD ↵Marc Zyngier
access Before GICv4.1, all operations would be serialized with the affinity changes by virtue of using the same ITS command queue. With v4.1, things change, as invalidations (and a number of other operations) are issued using the redistributor MMIO frame. We must thus make sure that these redistributor accesses cannot race against aginst the affinity change, or we may end-up talking to the wrong redistributor. To ensure this, we expand the irq_to_cpuid() helper to take a spinlock when the LPI is mapped to a vLPI (a new per-VPE lock) on each operation that requires mutual exclusion. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Link: https://lore.kernel.org/r/20200304203330.4967-4-maz@kernel.org
2020-03-19irqchip/gic-v3: Use SGIs without active state if offeredMarc Zyngier
To allow the direct injection of SGIs into a guest, the GICv4.1 architecture has to sacrifice the Active state so that SGIs look a lot like LPIs (they are injected by the same mechanism). In order not to break existing software, the architecture gives offers guests OSs the choice: SGIs with or without an active state. It is the hypervisors duty to honor the guest's choice. For this, the architecture offers a discovery bit indicating whether the GIC supports GICv4.1 SGIs (GICD_TYPER2.nASSGIcap), and another bit indicating whether the guest wants Active-less SGIs or not (controlled by GICD_CTLR.nASSGIreq). A hypervisor not supporting GICv4.1 SGIs would leave nASSGIcap clear, and a guest not knowing about GICv4.1 SGIs (or definitely wanting an Active state) would leave nASSGIreq clear (both being thankfully backward compatible with older revisions of the GIC). Since Linux is perfectly happy without an active state on SGIs, inform the hypervisor that we'll use that if offered. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Link: https://lore.kernel.org/r/20200304203330.4967-2-maz@kernel.org
2020-03-19netfilter: nf_tables: allow to specify stateful expression in set definitionPablo Neira Ayuso
This patch allows users to specify the stateful expression for the elements in this set via NFTA_SET_EXPR. This new feature allows you to turn on counters for all of the elements in this set. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-03-19netfilter: nf_tables: move nft_expr_clone() to nf_tables_api.cPablo Neira Ayuso
Move the nft_expr_clone() helper function to the core. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-03-19Merge tag 'timers-v5.7' of ↵Thomas Gleixner
https://git.linaro.org/people/daniel.lezcano/linux into timers/core Pull clockevent/clocksource updates from Daniel Lezcano: - Avoid creating dead devices by flagging the driver with OF_POPULATED in order to prevent the platform to create another device (Saravana Kannan) - Remove unused includes from imx family drivers (Anson Huang) - timer-dm-ti rework to prepare for pwm and suspend support (Lokesh Vutla) - Fix the rate for the global clock on the pit64b (Claudiu Beznea) - Fix timer-cs5535 by requesting an irq with non-NULL dev_id (Afzal Mohammed) - Replace setup_irq() by request_irq() (Afzal Mohammed) - Add support for the TCU of X1000 (Zhou Yanjie) - Drop the bogus omap_dm_timer_of_set_source() function (Suman Anna) - Do not update the counter when updating the period in order to prevent a disruption when the pwm is used (Lokesh Vutla) - Improve owl_timer_init() failure messages (Matheus Castello) - Add driver for the Ingenic JZ47xx OST (Maarten ter Huurne) - Pass the interrupt and the shutdown callbacks in the init function for ast2600 support (Joel Stanley) - Add the ast2600 compatible string for the fttmr010 (Joel Stanley)
2020-03-19bus: mhi: core: Add uevent support for module autoloadingManivannan Sadhasivam
Add uevent support to MHI bus so that the client drivers can be autoloaded by udev when the MHI devices gets created. The client drivers are expected to provide MODULE_DEVICE_TABLE with the MHI id_table struct so that the alias can be exported. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Link: https://lore.kernel.org/r/20200220095854.4804-13-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19bus: mhi: core: Add support for data transferManivannan Sadhasivam
Add support for transferring data between external modem and host processor using MHI protocol. This is based on the patch submitted by Sujeev Dias: https://lkml.org/lkml/2018/7/9/988 Signed-off-by: Sujeev Dias <sdias@codeaurora.org> Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org> [mani: splitted the data transfer patch and cleaned up for upstream] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Link: https://lore.kernel.org/r/20200220095854.4804-12-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19bus: mhi: core: Add support for processing events from client deviceManivannan Sadhasivam
This commit adds support for processing the MHI data and control events from the client device. The client device can report various events such as EE events, state change events by interrupting the host through IRQ and adding events to the event rings allocated by the host during initialization. This is based on the patch submitted by Sujeev Dias: https://lkml.org/lkml/2018/7/9/988 Signed-off-by: Sujeev Dias <sdias@codeaurora.org> Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org> [mani: splitted the data transfer patch and cleaned up for upstream] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Link: https://lore.kernel.org/r/20200220095854.4804-11-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19bus: mhi: core: Add support for downloading RDDM image during panicManivannan Sadhasivam
MHI protocol supports downloading RDDM (RAM Dump) image from the device through BHIE. This is useful to debugging as the RDDM image can capture the firmware state. This is based on the patch submitted by Sujeev Dias: https://lkml.org/lkml/2018/7/9/989 Signed-off-by: Sujeev Dias <sdias@codeaurora.org> Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org> [mani: splitted the data transfer patch and cleaned up for upstream] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Link: https://lore.kernel.org/r/20200220095854.4804-10-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19bus: mhi: core: Add support for basic PM operationsManivannan Sadhasivam
This commit adds support for basic MHI PM operations such as mhi_async_power_up, mhi_sync_power_up, and mhi_power_down. These routines places the MHI bus into respective power domain states and calls the state_transition APIs when necessary. The MHI controller driver is expected to call these PM routines for MHI powerup and powerdown. This is based on the patch submitted by Sujeev Dias: https://lkml.org/lkml/2018/7/9/989 Signed-off-by: Sujeev Dias <sdias@codeaurora.org> Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org> [mani: splitted the pm patch and cleaned up for upstream] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Link: https://lore.kernel.org/r/20200220095854.4804-8-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19bus: mhi: core: Add support for PM state transitionsManivannan Sadhasivam
This commit adds support for transitioning the MHI states as a part of the power management operations. Helpers functions are provided for the state transitions, which will be consumed by the actual power management routines. This is based on the patch submitted by Sujeev Dias: https://lkml.org/lkml/2018/7/9/989 Signed-off-by: Sujeev Dias <sdias@codeaurora.org> Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org> [jhugo: removed dma_zalloc_coherent() and fixed several bugs] Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org> [mani: splitted the pm patch and cleaned up for upstream] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Link: https://lore.kernel.org/r/20200220095854.4804-7-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19bus: mhi: core: Add support for ringing channel/event ring doorbellsManivannan Sadhasivam
This commit adds support for ringing channel and event ring doorbells by MHI host. The MHI host can use the channel and event ring doorbells for notifying the client device about processing transfer and event rings which it has queued using MMIO registers. This is based on the patch submitted by Sujeev Dias: https://lkml.org/lkml/2018/7/9/989 Signed-off-by: Sujeev Dias <sdias@codeaurora.org> Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org> [mani: splitted from pm patch and cleaned up for upstream] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Link: https://lore.kernel.org/r/20200220095854.4804-6-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19bus: mhi: core: Add support for creating and destroying MHI devicesManivannan Sadhasivam
This commit adds support for creating and destroying MHI devices. The MHI devices binds to the MHI channels and are used to transfer data between MHI host and client device. This is based on the patch submitted by Sujeev Dias: https://lkml.org/lkml/2018/7/9/989 Signed-off-by: Sujeev Dias <sdias@codeaurora.org> Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org> [mani: splitted from pm patch and cleaned up for upstream] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Link: https://lore.kernel.org/r/20200220095854.4804-5-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19bus: mhi: core: Add support for registering MHI client driversManivannan Sadhasivam
This commit adds support for registering MHI client drivers with the MHI stack. MHI client drivers binds to one or more MHI devices inorder to sends and receive the upper-layer protocol packets like IP packets, modem control messages, and diagnostics messages over MHI bus. This is based on the patch submitted by Sujeev Dias: https://lkml.org/lkml/2018/7/9/987 Signed-off-by: Sujeev Dias <sdias@codeaurora.org> Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org> [mani: splitted and cleaned up for upstream] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Link: https://lore.kernel.org/r/20200220095854.4804-4-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19bus: mhi: core: Add support for registering MHI controllersManivannan Sadhasivam
This commit adds support for registering MHI controller drivers with the MHI stack. MHI controller drivers manages the interaction with the MHI client devices such as the external modems and WiFi chipsets. They are also the MHI bus master in charge of managing the physical link between the host and client device. This is based on the patch submitted by Sujeev Dias: https://lkml.org/lkml/2018/7/9/987 Signed-off-by: Sujeev Dias <sdias@codeaurora.org> Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org> [jhugo: added static config for controllers and fixed several bugs] Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org> [mani: removed DT dependency, splitted and cleaned up for upstream] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20200220095854.4804-3-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19nvmem: core: add nvmem_cell_read_u64Yangtao Li
Add nvmem_cell_read_u64() helper to ease read of an u64 value on consumer side. This helper is useful on some sunxi platform that has 64 bits data cells stored in no volatile memory. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20200310132257.23358-4-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19rtc/ia64: remove legacy efirtc driverArnd Bergmann
There are two EFI RTC drivers, the original drivers/char/efirtc.c driver and the more modern drivers/rtc/rtc-efi.c. Both implement the same interface, but the new one does so in a more portable way. Move everything over to that one and remove the old one. Cc: linux-ia64@vger.kernel.org Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Stephane Eranian <eranian@google.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200226224322.187960-1-alexandre.belloni@bootlin.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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