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2018-08-03mlxsw: core_acl_flex_actions: Remove redundant mirror resource destructionNir Dotan
In previous patch mlxsw_afa_resource_del() was added to avoid a duplicate resource detruction scenario. For mirror actions, such duplicate destruction leads to a crash as in: # tc qdisc add dev swp49 ingress # tc filter add dev swp49 parent ffff: \ protocol ip chain 100 pref 10 \ flower skip_sw dst_ip 192.168.101.1 action drop # tc filter add dev swp49 parent ffff: \ protocol ip pref 10 \ flower skip_sw dst_ip 192.168.101.1 action goto chain 100 \ action mirred egress mirror dev swp4 Therefore add a call to mlxsw_afa_resource_del() in mlxsw_afa_mirror_destroy() in order to clear that resource from rule's resources. Fixes: d0d13c1858a1 ("mlxsw: spectrum_acl: Add support for mirror action") Signed-off-by: Nir Dotan <nird@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>
2018-08-03mlxsw: core_acl_flex_actions: Remove redundant counter destructionNir Dotan
Each tc flower rule uses a hidden count action. As counter resource may not be available due to limited HW resources, update _counter_create() and _counter_destroy() pair to follow previously introduced symmetric error condition handling, add a call to mlxsw_afa_resource_del() as part of the counter resource destruction. Fixes: c18c1e186ba8 ("mlxsw: core: Make counter index allocated inside the action append") Signed-off-by: Nir Dotan <nird@mellanox.com> Reviewed-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>
2018-08-03mlxsw: core_acl_flex_actions: Remove redundant resource destructionNir Dotan
Some ACL actions require the allocation of a separate resource prior to applying the action itself. When facing an error condition during the setup phase of the action, resource should be destroyed. For such actions the destruction was done twice which is dangerous and lead to a potential crash. The destruction took place first upon error on action setup phase and then as the rule was destroyed. The following sequence generated a crash: # tc qdisc add dev swp49 ingress # tc filter add dev swp49 parent ffff: \ protocol ip chain 100 pref 10 \ flower skip_sw dst_ip 192.168.101.1 action drop # tc filter add dev swp49 parent ffff: \ protocol ip pref 10 \ flower skip_sw dst_ip 192.168.101.1 action goto chain 100 \ action mirred egress mirror dev swp4 Therefore add mlxsw_afa_resource_del() as a complement of mlxsw_afa_resource_add() to add symmetry to resource_list membership handling. Call this from mlxsw_afa_fwd_entry_ref_destroy() to make the _fwd_entry_ref_create() and _fwd_entry_ref_destroy() pair of calls a NOP. Fixes: 140ce421217e ("mlxsw: core: Convert fwd_entry_ref list to be generic per-block resource list") Signed-off-by: Nir Dotan <nird@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>
2018-08-03mlxsw: core_acl_flex_actions: Return error for conflicting actionsNir Dotan
Spectrum switch ACL action set is built in groups of three actions which may point to additional actions. A group holds a single record which can be set as goto record for pointing at a following group or can be set to mark the termination of the lookup. This is perfectly adequate for handling a series of actions to be executed on a packet. While the SW model allows configuration of conflicting actions where it is clear that some actions will never execute, the mlxsw driver must block such configurations as it creates a conflict over the single terminate/goto record value. For a conflicting actions configuration such as: # tc filter add dev swp49 parent ffff: \ protocol ip pref 10 \ flower skip_sw dst_ip 192.168.101.1 \ action goto chain 100 \ action mirred egress mirror dev swp4 Where it is clear that the last action will never execute, the mlxsw driver was issuing a warning instead of returning an error. Therefore replace that warning with an error for this specific case. Fixes: 4cda7d8d7098 ("mlxsw: core: Introduce flexible actions support") Signed-off-by: Nir Dotan <nird@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>
2018-08-03netfilter: conntrack: avoid use-after free on rmmodFlorian Westphal
When the conntrack module is removed, we call nf_ct_iterate_destroy via nf_ct_l4proto_unregister(). Problem is that nf_conntrack_proto_fini() gets called after the conntrack hash table has already been freed. Just remove the l4proto unregister call, its unecessary as the nf_ct_protos[] array gets free'd right after anyway. v2: add comment wrt. missing unreg call. Fixes: a0ae2562c6c4b2 ("netfilter: conntrack: remove l3proto abstraction") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03netfilter: kconfig: remove ct zone/label dependenciesFlorian Westphal
connection tracking zones currently depend on the xtables CT target. The reasoning was that it makes no sense to support zones if they can't be configured (which needed CT target). Nowadays zones can also be used by OVS and configured via nftables, so remove the dependency. connection tracking labels are handled via hidden dependency that gets auto-selected by the connlabel match. Make it a visible knob, as labels can be attached via ctnetlink or via nftables rules (nft_ct expression) too. This allows to use conntrack labels and zones with nftables-only build. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03netfilter: nf_tables: simplify NLM_F_CREATE handlingPablo Neira Ayuso
* From nf_tables_newchain(), codepath provides context that allows us to infer if we are updating a chain (in that case, no module autoload is required) or adding a new one (then, module autoload is indeed needed). * We only need it in one single spot in nf_tables_newrule(). * Not needed for nf_tables_newset() at all. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03netfilter: bridge: Expose nf_tables bridge hook priorities through uapiMáté Eckl
Netfilter exposes standard hook priorities in case of ipv4, ipv6 and arp but not in case of bridge. This patch exposes the hook priority values of the bridge family (which are different from the formerly mentioned) via uapi so that they can be used by user-space applications just like the others. Signed-off-by: Máté Eckl <ecklm94@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03netfilter: nf_tables: match on tunnel metadataPablo Neira Ayuso
This patch allows us to match on the tunnel metadata that is available of the packet. We can use this to validate if the packet comes from/goes to tunnel and the corresponding tunnel ID. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03netfilter: nf_tables: add tunnel supportPablo Neira Ayuso
This patch implements the tunnel object type that can be used to configure tunnels via metadata template through the existing lightweight API from the ingress path. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03Merge branch 'dsa-systemport-WoL'David S. Miller
Florian Fainelli says: ==================== net: dsa and systemport WoL changes This patch series extracts what was previously submitted as part of the "WAKE_FILTER" Wake-on-LAN patch series into patches that do not. Changes in this series: - properly align the dsa_is_cpu_port() check in first patch ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03net: systemport: Create helper to set MPDFlorian Fainelli
Create a helper function to turn on/off MPD, this will be used to avoid duplicating code as we are going to add additional types of wake-up types. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03net: systemport: Do not re-configure upon WoL interruptFlorian Fainelli
We already properly resume from Wake-on-LAN whether such a condition occured or not, no need to process the WoL interrupt for functional changes since that could race with other settings. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03net: dsa: bcm_sf2: Disable learning while in WoLFlorian Fainelli
When we are in Wake-on-LAN, we operate with the host sofware not running a network stack, so we want to the switch to flood packets in order to cause a system wake-up when matching specific filters (unicast or multicast). This was not necessary before since we supported Magic Packet which are targeting a broadcast MAC address which the switch already floods. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03net: dsa: bcm_sf2: Allow targeting CPU ports for CFP rulesFlorian Fainelli
ds->enabled_port_mask only contains a bitmask of user-facing enabled ports, we also need to allow programming CFP rules that target CPU ports (e.g: ports 5 and 8). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03netfilter: nft_tproxy: Add missing config checkMáté Eckl
A config check was missing form the code when using nf_defrag_ipv6_enable with NFT_TPROXY != n and NF_DEFRAG_IPV6 = n and this caused the following error: ../net/netfilter/nft_tproxy.c: In function 'nft_tproxy_init': ../net/netfilter/nft_tproxy.c:237:3: error: implicit declaration of function +'nf_defrag_ipv6_enable' [-Werror=implicit-function-declaration] err = nf_defrag_ipv6_enable(ctx->net); This patch adds a check for NF_TABLES_IPV6 when NF_DEFRAG_IPV6 is selected by Kconfig. Reported-by: Randy Dunlap <rdunlap@infradead.org> Fixes: 4ed8eb6570a4 ("netfilter: nf_tables: Add native tproxy support") Signed-off-by: Máté Eckl <ecklm94@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds
Pull rdma fix from Jason Gunthorpe: "One bug for missing user input validation: refuse invalid port numbers in the modify_qp system call" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: RDMA/uverbs: Expand primary and alt AV port checks
2018-08-03Merge tag 'for-linus-20180803' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fix from Jens Axboe: "Just a single fix, from Ming, fixing a regression in this cycle where the busy tag iteration was changed to only calling the callback function for requests that are started. We really want all non-free requests. This fixes a boot regression on certain VM setups" * tag 'for-linus-20180803' of git://git.kernel.dk/linux-block: blk-mq: fix blk_mq_tagset_busy_iter
2018-08-03Merge tag 'nfs-for-4.18-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
Pull NFS client bugfix from Trond Myklebust: "Fix a NFSv4 file locking regression" * tag 'nfs-for-4.18-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFSv4: Fix _nfs4_do_setlk()
2018-08-03Merge tag 'powerpc-4.18-5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "One fix for a regression in a recent TLB flush optimisation, which caused us to incorrectly not send TLB invalidations to coprocessors. Thanks to Frederic Barrat, Nicholas Piggin, Vaibhav Jain" * tag 'powerpc-4.18-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s/radix: Fix missing global invalidations when removing copro
2018-08-03Merge tag 'drm-fixes-2018-08-03' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "Nothing too major at this late stage: - adv7511: reset fix - vc4: scaling fix - two atomic core fixes - one legacy core error handling fix I had a bunch of driver fixes from hdlcd but I think I'll leave them for -next at this point" * tag 'drm-fixes-2018-08-03' of git://anongit.freedesktop.org/drm/drm: drm/vc4: Reset ->{x, y}_scaling[1] when dealing with uniplanar formats drm/atomic: Initialize variables in drm_atomic_helper_async_check() to make gcc happy drm/atomic: Check old_plane_state->crtc in drm_atomic_helper_async_check() drm: re-enable error handling drm/bridge: adv7511: Reset registers on hotplug
2018-08-03Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fix from Herbert Xu: "Fix a memory corruption in the padlock-aes driver" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: padlock-aes - Fix Nano workaround data corruption
2018-08-03Merge branch 'l2tp-mtu'David S. Miller
Guillaume Nault says: ==================== l2tp: sanitise MTU handling on sessions Most of the code handling sessions' MTU has no effect. The ->mtu field in struct l2tp_session might be used at session creation time, but neither PPP nor Ethernet pseudo-wires take updates into account. L2TP sessions don't have a concept of MTU, which is the reason why ->mtu is mostly ignored. MTU should remain a network device thing. Therefore this patch set does not try to propagate/update ->mtu to/from the device. That would complicate the code unnecessarily. Instead this field and the associated ioctl commands and netlink attributes are removed. Patch #1 defines l2tp_tunnel_dst_mtu() in order to simplify the following patches. Then patches #2 and #3 remove MTU handling from PPP and Ethernet pseudo-wires respectively. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03l2tp: ignore L2TP_ATTR_MTUGuillaume Nault
This attribute's handling is broken. It can only be used when creating Ethernet pseudo-wires, in which case its value can be used as the initial MTU for the l2tpeth device. However, when handling update requests, L2TP_ATTR_MTU only modifies session->mtu. This value is never propagated to the l2tpeth device. Dump requests also return the value of session->mtu, which is not synchronised anymore with the device MTU. The same problem occurs if the device MTU is properly updated using the generic IFLA_MTU attribute. In this case, session->mtu is not updated, and L2TP_ATTR_MTU will report an invalid value again when dumping the session. It does not seem worthwhile to complexify l2tp_eth.c to synchronise session->mtu with the device MTU. Even the ip-l2tp manpage advises to use 'ip link' to initialise the MTU of l2tpeth devices (iproute2 does not handle L2TP_ATTR_MTU at all anyway). So let's just ignore it entirely. Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03l2tp: simplify MTU handling in l2tp_pppGuillaume Nault
The value of the session's .mtu field, as defined by pppol2tp_connect() or pppol2tp_session_create(), is later overwritten by pppol2tp_session_init() (unless getting the tunnel's socket PMTU fails). This field is then only used when setting the PPP channel's MTU in pppol2tp_connect(). Furthermore, the SIOC[GS]IFMTU ioctls only act on the session's .mtu without propagating this value to the PPP channel, making them useless. This patch initialises the PPP channel's MTU directly and ignores the session's .mtu entirely. MTU is still computed by subtracting the PPPOL2TP_HEADER_OVERHEAD constant. It is not optimal, but that doesn't really matter: po->chan.mtu is only used when the channel is part of a multilink PPP bundle. Running multilink PPP over packet switched networks is certainly not going to be efficient, so not picking the best MTU does not harm (in the worst case, packets will just be fragmented by the underlay). The SIOC[GS]IFMTU ioctls are removed entirely (as opposed to simply ignored), because these ioctls commands are part of the requests that should be handled generically by the socket layer. PX_PROTO_OL2TP was the only socket type abusing these ioctls. Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03l2tp: define l2tp_tunnel_dst_mtu()Guillaume Nault
Consolidate retrieval of tunnel's socket mtu in order to simplify l2tp_eth and l2tp_ppp a bit. Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03Merge branch 'hns3-next'David S. Miller
Salil Mehta says: ==================== Some important fixes for HNS3 driver This patch presents some important fixes related to MSIX allocation in HNS3 driver. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03net: hns3: Refine the MSIX allocation for PFJian Shen
The offset of msix number for roce is different between different revision id. We should get it from firmware, instead of a fix value. This patch refines the msix allocation, make it compatible. Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03net: hns3: Fix MSIX allocation issue for VFJian Shen
The msix number for vf is different, depends on the max vf number. Futherly if the vf supports roce, the offset of msix is not fixed. It's incorrect to fix the msix number to 33. This patch fixes it by querying the msix number from firmware, and adjusting it with roce support. Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03netfilter: cttimeout: Make NF_CT_NETLINK_TIMEOUT depend on NF_CONNTRACK_TIMEOUTHarsha Sharma
With this, remove ifdef for CONFIG_NF_CONNTRACK_TIMEOUT in nfnetlink_cttimeout. This is also required for moving ctnl_untimeout from nfnetlink_cttimeout to nf_conntrack_timeout. Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03netfilter: nf_tables: remove unused variableYueHaibing
Variable 'ext' is being assigned but are never used hence they are unused and can be removed. Cleans up clang warnings: net/netfilter/nf_tables_api.c:4032:28: warning: variable ‘ext’ set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03rxrpc: Reuse SKCIPHER_REQUEST_ON_STACK bufferKees Cook
The use of SKCIPHER_REQUEST_ON_STACK() will trigger FRAME_WARN warnings (when less than 2048) once the VLA is no longer hidden from the check: net/rxrpc/rxkad.c:398:1: warning: the frame size of 1152 bytes is larger than 1024 bytes [-Wframe-larger-than=] net/rxrpc/rxkad.c:242:1: warning: the frame size of 1152 bytes is larger than 1024 bytes [-Wframe-larger-than=] This passes the initial SKCIPHER_REQUEST_ON_STACK allocation to the leaf functions for reuse. Two requests allocated on the stack is not needed when only one is used at a time. Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03net: sched: fix flush on non-existing chainJiri Pirko
User was able to perform filter flush on chain 0 even if it didn't have any filters in it. With the patch that avoided implicit chain 0 creation, this changed. So in case user wants filter flush on chain which does not exist, just return success. There's no reason for non-0 chains to behave differently than chain 0, so do the same for them. Reported-by: Ido Schimmel <idosch@mellanox.com> Fixes: f71e0ca4db18 ("net: sched: Avoid implicit chain 0 creation") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03bnxt_en: combine 'else if' and 'else' into single branchYueHaibing
The else-if branch and else branch set mac_ok to true similarly, so combine the two into single else branch. Also add comments to explain the two conditions, which from Michael Chan and Vasundhara Volam. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-03netfilter: nf_tables: flow event notifier must use transaction mutexFlorian Westphal
Fixes: f102d66b335a4 ("netfilter: nf_tables: use dedicated mutex to guard transactions") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03netfilter: nfnetlink_osf: rename nf_osf header file to nfnetlink_osfFernando Fernandez Mancera
The first client of the nf_osf.h userspace header is nft_osf, coming in this batch, rename it to nfnetlink_osf.h as there are no userspace clients for this yet, hence this looks consistent with other nfnetlink subsystem. Suggested-by: Jan Engelhardt <jengelh@inai.de> Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03netfilter: nf_osf: move nf_osf_fingers to non-uapi header fileFernando Fernandez Mancera
All warnings (new ones prefixed by >>): >> ./usr/include/linux/netfilter/nf_osf.h:73: userspace cannot reference function or variable defined in the kernel Fixes: f9324952088f ("netfilter: nfnetlink_osf: extract nfnetlink_subsystem code from xt_osf.c") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03netfilter: use kvmalloc_array to allocate memory for hashtableLi RongQing
nf_ct_alloc_hashtable is used to allocate memory for conntrack, NAT bysrc and expectation hashtable. Assuming 64k bucket size, which means 7th order page allocation, __get_free_pages, called by nf_ct_alloc_hashtable, will trigger the direct memory reclaim and stall for a long time, when system has lots of memory stress so replace combination of __get_free_pages and vzalloc with kvmalloc_array, which provides a overflow check and a fallback if no high order memory is available, and do not retry to reclaim memory, reduce stall and remove nf_ct_free_hashtable, since it is just a kvfree Signed-off-by: Zhang Yu <zhangyu31@baidu.com> Signed-off-by: Wang Li <wangli39@baidu.com> Signed-off-by: Li RongQing <lirongqing@baidu.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03nohz: Fix missing tick reprogram when interrupting an inline softirqFrederic Weisbecker
The full nohz tick is reprogrammed in irq_exit() only if the exit is not in a nesting interrupt. This stands as an optimization: whether a hardirq or a softirq is interrupted, the tick is going to be reprogrammed when necessary at the end of the inner interrupt, with even potential new updates on the timer queue. When soft interrupts are interrupted, it's assumed that they are executing on the tail of an interrupt return. In that case tick_nohz_irq_exit() is called after softirq processing to take care of the tick reprogramming. But the assumption is wrong: softirqs can be processed inline as well, ie: outside of an interrupt, like in a call to local_bh_enable() or from ksoftirqd. Inline softirqs don't reprogram the tick once they are done, as opposed to interrupt tail softirq processing. So if a tick interrupts an inline softirq processing, the next timer will neither be reprogrammed from the interrupting tick's irq_exit() nor after the interrupted softirq processing. This situation may leave the tick unprogrammed while timers are armed. To fix this, simply keep reprogramming the tick even if a softirq has been interrupted. That can be optimized further, but for now correctness is more important. Note that new timers enqueued in nohz_full mode after a softirq gets interrupted will still be handled just fine through self-IPIs triggered by the timer code. Reported-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: stable@vger.kernel.org # 4.14+ Link: https://lkml.kernel.org/r/1533303094-15855-1-git-send-email-frederic@kernel.org
2018-08-03genirq: Make force irq threading setup more robustThomas Gleixner
The support of force threading interrupts which are set up with both a primary and a threaded handler wreckaged the setup of regular requested threaded interrupts (primary handler == NULL). The reason is that it does not check whether the primary handler is set to the default handler which wakes the handler thread. Instead it replaces the thread handler with the primary handler as it would do with force threaded interrupts which have been requested via request_irq(). So both the primary and the thread handler become the same which then triggers the warnon that the thread handler tries to wakeup a not configured secondary thread. Fortunately this only happens when the driver omits the IRQF_ONESHOT flag when requesting the threaded interrupt, which is normaly caught by the sanity checks when force irq threading is disabled. Fix it by skipping the force threading setup when a regular threaded interrupt is requested. As a consequence the interrupt request which lacks the IRQ_ONESHOT flag is rejected correctly instead of silently wreckaging it. Fixes: 2a1d3ab8986d ("genirq: Handle force threading of irqs with primary and thread handler") Reported-by: Kurt Kanzenbach <kurt.kanzenbach@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Kurt Kanzenbach <kurt.kanzenbach@linutronix.de> Cc: stable@vger.kernel.org
2018-08-03Bluetooth: hci_qca: Add support for Qualcomm Bluetooth chip wcn3990Balakrishna Godavarthi
Add support to set voltage/current of various regulators to power up/down Bluetooth chip wcn3990. Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-08-03Bluetooth: btqca: Add wcn3990 firmware download support.Balakrishna Godavarthi
This patch enables the RAM and NV patch download for wcn3990. Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-08-03Bluetooth: hci_qca: Enable 3.2 Mbps operating speed.Balakrishna Godavarthi
Enable Qualcomm chips to operate at 3.2Mbps. Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-08-03Bluetooth: hci_qca: Add wrapper functions for setting UART speedBalakrishna Godavarthi
In function qca_setup, we set initial and operating speeds for Qualcomm Bluetooth SoC's. This block of code is common across different Qualcomm Bluetooth SoC's. Instead of duplicating the code, created a wrapper function to set the speeds. So that future coming SoC's can use these wrapper functions to set speeds. Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-08-03Bluetooth: btqca: Redefine qca_uart_setup() to generic function.Balakrishna Godavarthi
Redefinition of qca_uart_setup will help future Qualcomm Bluetooth SoC, to use the same function instead of duplicating the function. Added new arguments soc_type and soc_ver to the functions. These arguments will help to decide type of firmware files to be loaded into Bluetooth chip. soc_type holds the Bluetooth chip connected to APPS processor. soc_ver holds the Bluetooth chip version. Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-08-03Bluetooth: btqca: Rename ROME specific functions to generic functionsBalakrishna Godavarthi
Some of the QCA BTSoC ROME functions, are used for different versions or different make of BTSoC's. Instead of duplicating the same functions for new chip, update names of the functions that are used for both chips to keep this generic and would help in future when we would have new BT SoC. To have generic text in logs updated from ROME to QCA where ever possible. This avoids confusion to user, when using the future Qualcomm Bluetooth SoC's. Updated BT_DBG, BT_ERR and BT_INFO with bt_dev_dbg, bt_dev_err and bt_dev_info where ever applicable. Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-08-03dt-bindings: net: bluetooth: Add device tree bindings for QTI chip wcn3990Balakrishna Godavarthi
This patch enables regulators for the Qualcomm Bluetooth wcn3990 controller. Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-08-03Bluetooth: hci_h5: Add support for enable and device-wake GPIOsHans de Goede
Add support for the enable and device-wake GPIOs used on ACPI enumerated RTL8723BS devices. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-08-03Bluetooth: hci_h5: Add support for the RTL8723BSJeremy Cline
Implement support for the RTL8723BS chip. Signed-off-by: Jeremy Cline <jeremy@jcline.org> [hdegoede@redhat.com: Port from bt3wire.c to hci_h5.c, drop broken GPIO code] Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-08-03Bluetooth: hci_h5: Add vendor setup, open, and close callbacksJeremy Cline
Allow vendor-specific setup, open, and close functions to be defined. Signed-off-by: Jeremy Cline <jeremy@jcline.org> [hdegoede@redhat.com: Port from bt3wire.c to hci_h5.c, drop dt support] Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>