platform/kernel/linux-rpi.git
3 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Jakub Kicinski [Mon, 14 Dec 2020 23:43:20 +0000 (15:43 -0800)]
Merge git://git./linux/kernel/git/pablo/nf-next

Pablo Neira Ayuso says:

====================
Netfilter/IPVS updates for net-next

1) Missing dependencies in NFT_BRIDGE_REJECT, from Randy Dunlap.

2) Use atomic_inc_return() instead of atomic_add_return() in IPVS,
   from Yejune Deng.

3) Simplify check for overquota in xt_nfacct, from Kaixu Xia.

4) Move nfnl_acct_list away from struct net, from Miao Wang.

5) Pass actual sk in reject actions, from Jan Engelhardt.

6) Add timeout and protoinfo to ctnetlink destroy events,
   from Florian Westphal.

7) Four patches to generalize set infrastructure to support
   for multiple expressions per set element.

* git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next:
  netfilter: nftables: netlink support for several set element expressions
  netfilter: nftables: generalize set extension to support for several expressions
  netfilter: nftables: move nft_expr before nft_set
  netfilter: nftables: generalize set expressions support
  netfilter: ctnetlink: add timeout and protoinfo to destroy events
  netfilter: use actual socket sk for REJECT action
  netfilter: nfnl_acct: remove data from struct net
  netfilter: Remove unnecessary conversion to bool
  ipvs: replace atomic_add_return()
  netfilter: nft_reject_bridge: fix build errors due to code movement
====================

Link: https://lore.kernel.org/r/20201212230513.3465-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoMerge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Jakub Kicinski [Mon, 14 Dec 2020 23:34:35 +0000 (15:34 -0800)]
Merge https://git./linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2020-12-14

1) Expose bpf_sk_storage_*() helpers to iterator programs, from Florent Revest.

2) Add AF_XDP selftests based on veth devs to BPF selftests, from Weqaar Janjua.

3) Support for finding BTF based kernel attach targets through libbpf's
   bpf_program__set_attach_target() API, from Andrii Nakryiko.

4) Permit pointers on stack for helper calls in the verifier, from Yonghong Song.

5) Fix overflows in hash map elem size after rlimit removal, from Eric Dumazet.

6) Get rid of direct invocation of llc in BPF selftests, from Andrew Delgadillo.

7) Fix xsk_recvmsg() to reorder socket state check before access, from Björn Töpel.

8) Add new libbpf API helper to retrieve ring buffer epoll fd, from Brendan Jackman.

9) Batch of minor BPF selftest improvements all over the place, from Florian Lehner,
   KP Singh, Jiri Olsa and various others.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (31 commits)
  selftests/bpf: Add a test for ptr_to_map_value on stack for helper access
  bpf: Permits pointers on stack for helper calls
  libbpf: Expose libbpf ring_buffer epoll_fd
  selftests/bpf: Add set_attach_target() API selftest for module target
  libbpf: Support modules in bpf_program__set_attach_target() API
  selftests/bpf: Silence ima_setup.sh when not running in verbose mode.
  selftests/bpf: Drop the need for LLVM's llc
  selftests/bpf: fix bpf_testmod.ko recompilation logic
  samples/bpf: Fix possible hang in xdpsock with multiple threads
  selftests/bpf: Make selftest compilation work on clang 11
  selftests/bpf: Xsk selftests - adding xdpxceiver to .gitignore
  selftests/bpf: Drop tcp-{client,server}.py from Makefile
  selftests/bpf: Xsk selftests - Bi-directional Sockets - SKB, DRV
  selftests/bpf: Xsk selftests - Socket Teardown - SKB, DRV
  selftests/bpf: Xsk selftests - DRV POLL, NOPOLL
  selftests/bpf: Xsk selftests - SKB POLL, NOPOLL
  selftests/bpf: Xsk selftests framework
  bpf: Only provide bpf_sock_from_file with CONFIG_NET
  bpf: Return -ENOTSUPP when attaching to non-kernel BTF
  xsk: Validate socket state in xsk_recvmsg, prior touching socket members
  ...
====================

Link: https://lore.kernel.org/r/20201214214316.20642-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoselftests/bpf: Add a test for ptr_to_map_value on stack for helper access
Yonghong Song [Thu, 10 Dec 2020 01:33:50 +0000 (17:33 -0800)]
selftests/bpf: Add a test for ptr_to_map_value on stack for helper access

Change bpf_iter_task.c such that pointer to map_value may appear
on the stack for bpf_seq_printf() to access. Without previous
verifier patch, the bpf_iter test will fail.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20201210013350.943985-1-yhs@fb.com
3 years agobpf: Permits pointers on stack for helper calls
Yonghong Song [Thu, 10 Dec 2020 01:33:49 +0000 (17:33 -0800)]
bpf: Permits pointers on stack for helper calls

Currently, when checking stack memory accessed by helper calls,
for spills, only PTR_TO_BTF_ID and SCALAR_VALUE are
allowed.

Song discovered an issue where the below bpf program
  int dump_task(struct bpf_iter__task *ctx)
  {
    struct seq_file *seq = ctx->meta->seq;
    static char[] info = "abc";
    BPF_SEQ_PRINTF(seq, "%s\n", info);
    return 0;
  }
may cause a verifier failure.

The verifier output looks like:
  ; struct seq_file *seq = ctx->meta->seq;
  1: (79) r1 = *(u64 *)(r1 +0)
  ; BPF_SEQ_PRINTF(seq, "%s\n", info);
  2: (18) r2 = 0xffff9054400f6000
  4: (7b) *(u64 *)(r10 -8) = r2
  5: (bf) r4 = r10
  ;
  6: (07) r4 += -8
  ; BPF_SEQ_PRINTF(seq, "%s\n", info);
  7: (18) r2 = 0xffff9054400fe000
  9: (b4) w3 = 4
  10: (b4) w5 = 8
  11: (85) call bpf_seq_printf#126
   R1_w=ptr_seq_file(id=0,off=0,imm=0) R2_w=map_value(id=0,off=0,ks=4,vs=4,imm=0)
  R3_w=inv4 R4_w=fp-8 R5_w=inv8 R10=fp0 fp-8_w=map_value
  last_idx 11 first_idx 0
  regs=8 stack=0 before 10: (b4) w5 = 8
  regs=8 stack=0 before 9: (b4) w3 = 4
  invalid indirect read from stack off -8+0 size 8

Basically, the verifier complains the map_value pointer at "fp-8" location.
To fix the issue, if env->allow_ptr_leaks is true, let us also permit
pointers on the stack to be accessible by the helper.

Reported-by: Song Liu <songliubraving@fb.com>
Suggested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20201210013349.943719-1-yhs@fb.com
3 years agolibbpf: Expose libbpf ring_buffer epoll_fd
Brendan Jackman [Mon, 14 Dec 2020 11:38:12 +0000 (11:38 +0000)]
libbpf: Expose libbpf ring_buffer epoll_fd

This provides a convenient perf ringbuf -> libbpf ringbuf migration
path for users of external polling systems. It is analogous to
perf_buffer__epoll_fd.

Signed-off-by: Brendan Jackman <jackmanb@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201214113812.305274-1-jackmanb@google.com
3 years agoselftests/bpf: Add set_attach_target() API selftest for module target
Andrii Nakryiko [Fri, 11 Dec 2020 21:58:25 +0000 (13:58 -0800)]
selftests/bpf: Add set_attach_target() API selftest for module target

Add test for bpf_program__set_attach_target() API, validating it can find
kernel module fentry target.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20201211215825.3646154-3-andrii@kernel.org
3 years agolibbpf: Support modules in bpf_program__set_attach_target() API
Andrii Nakryiko [Fri, 11 Dec 2020 21:58:24 +0000 (13:58 -0800)]
libbpf: Support modules in bpf_program__set_attach_target() API

Support finding kernel targets in kernel modules when using
bpf_program__set_attach_target() API. This brings it up to par with what
libbpf supports when doing declarative SEC()-based target determination.

Some minor internal refactoring was needed to make sure vmlinux BTF can be
loaded before bpf_object's load phase.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20201211215825.3646154-2-andrii@kernel.org
3 years agonet: x25: Remove unimplemented X.25-over-LLC code stubs
Xie He [Wed, 9 Dec 2020 03:33:46 +0000 (19:33 -0800)]
net: x25: Remove unimplemented X.25-over-LLC code stubs

According to the X.25 documentation, there was a plan to implement
X.25-over-802.2-LLC. It never finished but left various code stubs in the
X.25 code. At this time it is unlikely that it would ever finish so it
may be better to remove those code stubs.

Also change the documentation to make it clear that this is not a ongoing
plan anymore. Change words like "will" to "could", "would", etc.

Cc: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Link: https://lore.kernel.org/r/20201209033346.83742-1-xie.he.0141@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoinet: frags: batch fqdir destroy works
SeongJae Park [Fri, 11 Dec 2020 11:24:05 +0000 (12:24 +0100)]
inet: frags: batch fqdir destroy works

On a few of our systems, I found frequent 'unshare(CLONE_NEWNET)' calls
make the number of active slab objects including 'sock_inode_cache' type
rapidly and continuously increase.  As a result, memory pressure occurs.

In more detail, I made an artificial reproducer that resembles the
workload that we found the problem and reproduce the problem faster.  It
merely repeats 'unshare(CLONE_NEWNET)' 50,000 times in a loop.  It takes
about 2 minutes.  On 40 CPU cores / 70GB DRAM machine, the available
memory continuously reduced in a fast speed (about 120MB per second,
15GB in total within the 2 minutes).  Note that the issue don't
reproduce on every machine.  On my 6 CPU cores machine, the problem
didn't reproduce.

'cleanup_net()' and 'fqdir_work_fn()' are functions that deallocate the
relevant memory objects.  They are asynchronously invoked by the work
queues and internally use 'rcu_barrier()' to ensure safe destructions.
'cleanup_net()' works in a batched maneer in a single thread worker,
while 'fqdir_work_fn()' works for each 'fqdir_exit()' call in the
'system_wq'.  Therefore, 'fqdir_work_fn()' called frequently under the
workload and made the contention for 'rcu_barrier()' high.  In more
detail, the global mutex, 'rcu_state.barrier_mutex' became the
bottleneck.

This commit avoids such contention by doing the 'rcu_barrier()' and
subsequent lightweight works in a batched manner, as similar to that of
'cleanup_net()'.  The fqdir hashtable destruction, which is done before
the 'rcu_barrier()', is still allowed to run in parallel for fast
processing, but this commit makes it to use a dedicated work queue
instead of the 'system_wq', to make sure that the number of threads is
bounded.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20201211112405.31158-1-sjpark@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonfc: s3fwrn5: let core configure the interrupt trigger
Krzysztof Kozlowski [Thu, 10 Dec 2020 21:18:24 +0000 (22:18 +0100)]
nfc: s3fwrn5: let core configure the interrupt trigger

If interrupt trigger is not set when requesting the interrupt, the core
will take care of reading trigger type from Devicetree.  There is no
point to do it in the driver.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201210211824.214949-1-krzk@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: dsa: mt7530: enable MTU normalization
DENG Qingfang [Thu, 10 Dec 2020 17:03:22 +0000 (01:03 +0800)]
net: dsa: mt7530: enable MTU normalization

MT7530 has a global RX length register, so we are actually changing its
MRU.
Enable MTU normalization for this reason.

Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Acked-by: Landen Chao <landen.chao@mediatek.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20201210170322.3433-1-dqfext@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec...
Jakub Kicinski [Sat, 12 Dec 2020 20:28:41 +0000 (12:28 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/klassert/ipsec-next

Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2020-12-12

Just one patch this time:

1) Redact the SA keys with kernel lockdown confidentiality.
   If enabled, no secret keys are sent to uuserspace.
   From Antony Antony.

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next:
  xfrm: redact SA secret with lockdown confidentiality
====================

Link: https://lore.kernel.org/r/20201212085737.2101294-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoMerge tag 'wireless-drivers-next-2020-12-12' of git://git.kernel.org/pub/scm/linux...
Jakub Kicinski [Sat, 12 Dec 2020 19:57:28 +0000 (11:57 -0800)]
Merge tag 'wireless-drivers-next-2020-12-12' of git://git./linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for v5.11

Second set of patches for v5.11. iwlwifi gaining support for the new
6 GHz band and rtw88 got a new channel. Lots of new features for mt76
and ath11k now has working suspend for PCI devices. And as always,
smaller fixes and cleanups all over.

Major changes:

rtw88
 * add support for channel 144

mt76
 * support for more sta interfaces on mt7615/mt7915
 * mt7915 encapsulation offload
 * performance improvements
 * channel noise report on mt7915
 * mt7915 testmode support
 * mt7915 DBDC support

iwlwifi
 * support 6 GHz band

ath11k
 * suspend support for QCA6390 PCI devices
 * support TXOP duration based RTS threshold
 * mesh: add support for 256 bitmap in blockack frames in 11ax

* tag 'wireless-drivers-next-2020-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next: (197 commits)
  ath11k: implement suspend for QCA6390 PCI devices
  ath11k: hif: add ce irq enable and disable functions
  ath11k: implement WoW enable and wakeup commands
  ath11k: set credit_update flag for flow controlled ep only
  ath11k: dp: stop rx pktlog before suspend
  ath11k: htc: implement suspend handling
  ath11k: htc: remove unused struct ath11k_htc_ops
  ath11k: pci: read select_window register to ensure write is finished
  ath11k: hif: implement suspend and resume functions
  ath11k: mhi: hook suspend and resume
  ath11k: Fix incorrect tlvs in scan start command
  ath11k: pci: disable VDD4BLOW
  ath11k: pci: fix L1ss clock unstable problem
  ath11k: pci: fix hot reset stability issues
  ath11k: put hw to DBS using WMI_PDEV_SET_HW_MODE_CMDID
  ath11k: mhi: print a warning if firmware crashed
  ath11k: use MHI provided APIs to allocate and free MHI controller
  ath10k: add atomic protection for device recovery
  ath10k: add option for chip-id based BDF selection
  mt76: remove unused variable q
  ...
====================

Link: https://lore.kernel.org/r/20201212050839.EF50EC433C6@smtp.codeaurora.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonetfilter: nftables: netlink support for several set element expressions
Pablo Neira Ayuso [Mon, 7 Dec 2020 16:37:14 +0000 (17:37 +0100)]
netfilter: nftables: netlink support for several set element expressions

This patch adds three new netlink attributes to encapsulate a list of
expressions per set elements:

- NFTA_SET_EXPRESSIONS: this attribute provides the set definition in
  terms of expressions. New set elements get attached the list of
  expressions that is specified by this new netlink attribute.
- NFTA_SET_ELEM_EXPRESSIONS: this attribute allows users to restore (or
  initialize) the stateful information of set elements when adding an
  element to the set.
- NFTA_DYNSET_EXPRESSIONS: this attribute specifies the list of
  expressions that the set element gets when it is inserted from the
  packet path.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
3 years agonetfilter: nftables: generalize set extension to support for several expressions
Pablo Neira Ayuso [Wed, 9 Dec 2020 19:10:27 +0000 (20:10 +0100)]
netfilter: nftables: generalize set extension to support for several expressions

This patch replaces NFT_SET_EXPR by NFT_SET_EXT_EXPRESSIONS. This new
extension allows to attach several expressions to one set element (not
only one single expression as NFT_SET_EXPR provides). This patch
prepares for support for several expressions per set element in the
netlink userspace API.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
3 years agoMerge tag 'mac80211-next-for-net-next-2020-12-11' of git://git.kernel.org/pub/scm...
Jakub Kicinski [Sat, 12 Dec 2020 18:07:56 +0000 (10:07 -0800)]
Merge tag 'mac80211-next-for-net-next-2020-12-11' of git://git./linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
A new set of wireless changes:
 * validate key indices for key deletion
 * more preamble support in mac80211
 * various 6 GHz scan fixes/improvements
 * a common SAR power limitations API
 * various small fixes & code improvements

* tag 'mac80211-next-for-net-next-2020-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next: (35 commits)
  mac80211: add ieee80211_set_sar_specs
  nl80211: add common API to configure SAR power limitations
  mac80211: fix a mistake check for rx_stats update
  mac80211: mlme: save ssid info to ieee80211_bss_conf while assoc
  mac80211: Update rate control on channel change
  mac80211: don't filter out beacons once we start CSA
  mac80211: Fix calculation of minimal channel width
  mac80211: ignore country element TX power on 6 GHz
  mac80211: use bitfield helpers for BA session action frames
  mac80211: support Rx timestamp calculation for all preamble types
  mac80211: don't set set TDLS STA bandwidth wider than possible
  mac80211: support driver-based disconnect with reconnect hint
  cfg80211: support immediate reconnect request hint
  mac80211: use struct assignment for he_obss_pd
  cfg80211: remove struct ieee80211_he_bss_color
  nl80211: validate key indexes for cfg80211_registered_device
  cfg80211: include block-tx flag in channel switch started event
  mac80211: disallow band-switch during CSA
  ieee80211: update reduced neighbor report TBTT info length
  cfg80211: Save the regulatory domain when setting custom regulatory
  ...
====================

Link: https://lore.kernel.org/r/20201211142552.209018-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonetfilter: nftables: move nft_expr before nft_set
Pablo Neira Ayuso [Mon, 7 Dec 2020 16:37:05 +0000 (17:37 +0100)]
netfilter: nftables: move nft_expr before nft_set

Move the nft_expr structure definition before nft_set. Expressions are
used by rules and sets, remove unnecessary forward declarations. This
comes as preparation to support for multiple expressions per set element.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
3 years agonetfilter: nftables: generalize set expressions support
Pablo Neira Ayuso [Mon, 7 Dec 2020 16:37:01 +0000 (17:37 +0100)]
netfilter: nftables: generalize set expressions support

Currently, the set infrastucture allows for one single expressions per
element. This patch extends the existing infrastructure to allow for up
to two expressions. This is not updating the netlink API yet, this is
coming as an initial preparation patch.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
3 years agonetfilter: ctnetlink: add timeout and protoinfo to destroy events
Florian Westphal [Thu, 10 Dec 2020 13:43:23 +0000 (14:43 +0100)]
netfilter: ctnetlink: add timeout and protoinfo to destroy events

DESTROY events do not include the remaining timeout.

Add the timeout if the entry was removed explicitly. This can happen
when a conntrack gets deleted prematurely, e.g. due to a tcp reset,
module removal, netdev notifier (nat/masquerade device went down),
ctnetlink and so on.

Add the protocol state too for the destroy message to check for abnormal
state on connection termination.

Joint work with Pablo.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
3 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Jakub Kicinski [Sat, 12 Dec 2020 04:12:36 +0000 (20:12 -0800)]
Merge git://git./linux/kernel/git/netdev/net

xdp_return_frame_bulk() needs to pass a xdp_buff
to __xdp_return().

strlcpy got converted to strscpy but here it makes no
functional difference, so just keep the right code.

Conflicts:
net/netfilter/nf_tables_api.c

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoMerge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Kalle Valo [Sat, 12 Dec 2020 04:51:34 +0000 (06:51 +0200)]
Merge ath-next from git://git./linux/kernel/git/kvalo/ath.git

ath.git patches for v5.11. Major changes:

ath11k

* suspend support for QCA6390 PCI devices

* support TXOP duration based RTS threshold

* mesh: add support for 256 bitmap in blockack frames in 11ax

3 years agoath11k: implement suspend for QCA6390 PCI devices
Carl Huang [Fri, 11 Dec 2020 17:35:50 +0000 (19:35 +0200)]
ath11k: implement suspend for QCA6390 PCI devices

Now that all the needed pieces are in place implement suspend support QCA6390
PCI devices. All other devices will return -EOPNOTSUPP during suspend. The
suspend is implemented by switching the firmware to WoW mode during suspend, so
the firmware will be running on low power mode while host is in suspend.

At the moment we are not able to shutdown and fully power off the device due to
bugs in MHI subsystem, so WoW mode is a workaround for the time being.

During suspend we enable WoW mode, disable CE irq and DP irq, then put MHI to
suspend state.  During resume, driver resumes MHI firstly, then enables CE irq
and dp IRQ, and sends WoW wakeup command to firmware.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-11-git-send-email-kvalo@codeaurora.org
3 years agoath11k: hif: add ce irq enable and disable functions
Carl Huang [Fri, 11 Dec 2020 17:35:49 +0000 (19:35 +0200)]
ath11k: hif: add ce irq enable and disable functions

Add ce irq enable and disable hif layer functions, so core module can enable
enable them without cleaning pipe and refilling pipe. Needed for suspend.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-10-git-send-email-kvalo@codeaurora.org
3 years agoath11k: implement WoW enable and wakeup commands
Carl Huang [Fri, 11 Dec 2020 17:35:48 +0000 (19:35 +0200)]
ath11k: implement WoW enable and wakeup commands

Implement wow enable ane wow wakeup commands which are needed for suspend.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-9-git-send-email-kvalo@codeaurora.org
3 years agoath11k: set credit_update flag for flow controlled ep only
Carl Huang [Fri, 11 Dec 2020 17:35:47 +0000 (19:35 +0200)]
ath11k: set credit_update flag for flow controlled ep only

Firmware will check all the pipes before entering WoW mode during suspend. If
ATH11K_HTC_FLAG_NEED_CREDIT_UPDATE is set, firmware treats this pipe needed to
return credit even though it's actually not required. If any pipe needs to
return credit, the suspend_complete message doesn't send to host but is
dropped.  So host gets time out and WoW suspend failed.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-8-git-send-email-kvalo@codeaurora.org
3 years agoath11k: dp: stop rx pktlog before suspend
Carl Huang [Fri, 11 Dec 2020 17:35:46 +0000 (19:35 +0200)]
ath11k: dp: stop rx pktlog before suspend

Stop dp rx pktlog when entering suspend and reap the mon_status buffer to keep
it empty. During resume restart the reap timer.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-7-git-send-email-kvalo@codeaurora.org
3 years agoath11k: htc: implement suspend handling
Carl Huang [Fri, 11 Dec 2020 17:35:45 +0000 (19:35 +0200)]
ath11k: htc: implement suspend handling

When ath11k sends suspend command to firmware, firmware will
return suspend_complete events and add handlers for those.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-6-git-send-email-kvalo@codeaurora.org
3 years agoath11k: htc: remove unused struct ath11k_htc_ops
Kalle Valo [Fri, 11 Dec 2020 17:35:44 +0000 (19:35 +0200)]
ath11k: htc: remove unused struct ath11k_htc_ops

No need for it so remove. Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-5-git-send-email-kvalo@codeaurora.org
3 years agoath11k: pci: read select_window register to ensure write is finished
Carl Huang [Fri, 11 Dec 2020 17:35:43 +0000 (19:35 +0200)]
ath11k: pci: read select_window register to ensure write is finished

Just when resume from WoW, the write to select_window doesn't take
effect immediately, so read the register again to ensure the write
operation is finished.

Another change is to reset select_window to ZERO because this
register isn't restored after WoW, so the content of this register
becomes ZERO too.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-4-git-send-email-kvalo@codeaurora.org
3 years agoath11k: hif: implement suspend and resume functions
Carl Huang [Fri, 11 Dec 2020 17:35:42 +0000 (19:35 +0200)]
ath11k: hif: implement suspend and resume functions

For suspend support add suspend and resume to HIF layer. These ops are optional
and, for example, AHB bus driver does not need to implement these.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-3-git-send-email-kvalo@codeaurora.org
3 years agoath11k: mhi: hook suspend and resume
Carl Huang [Fri, 11 Dec 2020 17:35:41 +0000 (19:35 +0200)]
ath11k: mhi: hook suspend and resume

MHI suspend and resume isn't hooked in ath11k yet, so hook these
functions needed for suspend support.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-2-git-send-email-kvalo@codeaurora.org
3 years agoath11k: Fix incorrect tlvs in scan start command
Pradeep Kumar Chitrapu [Thu, 10 Dec 2020 14:05:24 +0000 (16:05 +0200)]
ath11k: Fix incorrect tlvs in scan start command

Currently 6G specific tlvs have duplicate entries which is causing
scan failures. Fix this by removing the duplicate entries of the same
tlv. This also fixes out-of-bound memory writes caused due to
adding tlvs when num_hint_bssid and num_hint_s_ssid are ZEROs.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01386-QCAHKSWPL_SILICONZ-1

Fixes: 74601ecfef6e ("ath11k: Add support for 6g scan hint")
Reported-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607609124-17250-7-git-send-email-kvalo@codeaurora.org
3 years agoath11k: pci: disable VDD4BLOW
Carl Huang [Thu, 10 Dec 2020 14:05:23 +0000 (16:05 +0200)]
ath11k: pci: disable VDD4BLOW

It's recommended to disable VDD4BLOW during initialisation.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607609124-17250-6-git-send-email-kvalo@codeaurora.org
3 years agoath11k: pci: fix L1ss clock unstable problem
Carl Huang [Thu, 10 Dec 2020 14:05:22 +0000 (16:05 +0200)]
ath11k: pci: fix L1ss clock unstable problem

For QCA6390, one PCI related clock drifts sometimes, and
it makes PCI link difficult to quit L1ss. Fix it by writing
some registers which are known to fix the problem.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607609124-17250-5-git-send-email-kvalo@codeaurora.org
3 years agoath11k: pci: fix hot reset stability issues
Carl Huang [Thu, 10 Dec 2020 14:05:21 +0000 (16:05 +0200)]
ath11k: pci: fix hot reset stability issues

For QCA6390, host needs to reset some registers before MHI power up to fix PCI
link unstable issue if hot reset happened. Also clear all pending interrupts
during power up.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607609124-17250-4-git-send-email-kvalo@codeaurora.org
3 years agoath11k: put hw to DBS using WMI_PDEV_SET_HW_MODE_CMDID
Carl Huang [Thu, 10 Dec 2020 14:05:20 +0000 (16:05 +0200)]
ath11k: put hw to DBS using WMI_PDEV_SET_HW_MODE_CMDID

It's recommended to use wmi command WMI_PDEV_SET_HW_MODE_CMDID to put hardware
to dbs mode instead of wmi_init command. This fixes a few strange stability
issues.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607609124-17250-3-git-send-email-kvalo@codeaurora.org
3 years agoath11k: mhi: print a warning if firmware crashed
Kalle Valo [Thu, 10 Dec 2020 14:05:19 +0000 (16:05 +0200)]
ath11k: mhi: print a warning if firmware crashed

There was no way to detect if the firmware crashed so add a warning. At the
moment the firmware is not restarted or anything like that, so when this
happens ath11k modules need to be reloaded.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607609124-17250-2-git-send-email-kvalo@codeaurora.org
3 years agoath11k: use MHI provided APIs to allocate and free MHI controller
Bhaumik Bhatt [Tue, 17 Nov 2020 17:33:56 +0000 (09:33 -0800)]
ath11k: use MHI provided APIs to allocate and free MHI controller

Use MHI provided APIs to allocate and free MHI controller to
improve MHI host driver handling. This also fixes a memory leak
as the MHI controller was allocated but never freed.

Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1605634436-36506-1-git-send-email-bbhatt@codeaurora.org
3 years agoath10k: add atomic protection for device recovery
Wen Gong [Tue, 8 Sep 2020 04:13:06 +0000 (04:13 +0000)]
ath10k: add atomic protection for device recovery

When it has more than one restart_work queued meanwhile, the 2nd
restart_work is very easy to break the 1st restart work and lead
recovery fail.

Add a flag to allow only one restart work running untill
device successfully recovered.

It already has flag ATH10K_FLAG_CRASH_FLUSH, but it can not use this
flag again, because it is clear in ath10k_core_start. The function
ieee80211_reconfig(called by ieee80211_restart_work) of mac80211 do
many things and drv_start(call to ath10k_core_start) is 1st thing,
when drv_start complete, it does not mean restart complete. So it
add new flag and clear it in ath10k_reconfig_complete, because it
is the last thing called from drv_reconfig_complete of function
ieee80211_reconfig, after it, the restart process finished.

Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00049

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/010101746bead6a0-d5e97c66-dedd-4b92-810e-c2e4840fafc9-000000@us-west-2.amazonses.com
3 years agoath10k: add option for chip-id based BDF selection
Abhishek Kumar [Wed, 9 Dec 2020 07:11:18 +0000 (09:11 +0200)]
ath10k: add option for chip-id based BDF selection

In some devices difference in chip-id should be enough to pick
the right BDF. Add another support for chip-id based BDF selection.
With this new option, ath10k supports 2 fallback options.

The board name with chip-id as option looks as follows
board name 'bus=snoc,qmi-board-id=ff,qmi-chip-id=320'

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.2.2-00696-QCAHLSWMTPL-1
Tested-on: QCA6174 HW3.2 WLAN.RM.4.4.1-00157-QCARMSWPZ-1
Signed-off-by: Abhishek Kumar <kuabhs@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201207231824.v3.1.Ia6b95087ca566f77423f3802a78b946f7b593ff5@changeid
3 years agoMerge tag 'mtd/fixes-for-5.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 11 Dec 2020 22:29:46 +0000 (14:29 -0800)]
Merge tag 'mtd/fixes-for-5.10-rc8' of git://git./linux/kernel/git/mtd/linux

Pull mtd fixes from Miquel Raynal:
 "Second series of fixes for raw NAND drivers initiated because of a
  rework of the ECC engine subsystem.

  The location of the DT parsing logic got moved, breaking several
  drivers which in fact were not doing the ECC engine initialization at
  the right place.

  These drivers have been fixed by enforcing a particular ECC engine
  type and algorithm, software Hamming, while the algorithm may be
  overwritten by a DT property. This merge request fixes this in the
  xway, socrates, plat_nand, pasemi, orion, mpc5121, gpio, au1550 and
  ams-delta controller drivers"

* tag 'mtd/fixes-for-5.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: xway: Do not force a particular software ECC engine
  mtd: rawnand: socrates: Do not force a particular software ECC engine
  mtd: rawnand: plat_nand: Do not force a particular software ECC engine
  mtd: rawnand: pasemi: Do not force a particular software ECC engine
  mtd: rawnand: orion: Do not force a particular software ECC engine
  mtd: rawnand: mpc5121: Do not force a particular software ECC engine
  mtd: rawnand: gpio: Do not force a particular software ECC engine
  mtd: rawnand: au1550: Do not force a particular software ECC engine
  mtd: rawnand: ams-delta: Do not force a particular software ECC engine

3 years agoMerge tag 'mmc-v5.10-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 11 Dec 2020 22:26:17 +0000 (14:26 -0800)]
Merge tag 'mmc-v5.10-rc4-2' of git://git./linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "A couple of MMC fixes:

  MMC core:
   - Fixup condition for CMD13 polling for RPMB requests

  MMC host:
   - mtk-sd: Fix system suspend/resume support for CQHCI
   - mtd-sd: Extend SDIO IRQ fix to more variants
   - sdhci-of-arasan: Fix clock registration error for Keem Bay SOC
   - tmio: Bring HW to a sane state after a power off"

* tag 'mmc-v5.10-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: mediatek: mark PM functions as __maybe_unused
  mmc: block: Fixup condition for CMD13 polling for RPMB requests
  mmc: tmio: improve bringing HW to a sane state with MMC_POWER_OFF
  mmc: sdhci-of-arasan: Fix clock registration error for Keem Bay SOC
  mmc: mediatek: Extend recheck_sdio_irq fix to more variants
  mmc: mediatek: Fix system suspend/resume support for CQHCI

3 years agoMerge tag 'zonefs-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal...
Linus Torvalds [Fri, 11 Dec 2020 22:22:42 +0000 (14:22 -0800)]
Merge tag 'zonefs-5.10-rc7' of git://git./linux/kernel/git/dlemoal/zonefs

Pull zonefs fix from Damien Le Moal:
 "A single patch in this pull request to fix a BIO and page reference
  leak when writing sequential zone files"

* tag 'zonefs-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonefs: fix page reference and BIO leak

3 years agobpf: Fix enum names for bpf_this_cpu_ptr() and bpf_per_cpu_ptr() helpers
Andrii Nakryiko [Fri, 11 Dec 2020 21:36:25 +0000 (22:36 +0100)]
bpf: Fix enum names for bpf_this_cpu_ptr() and bpf_per_cpu_ptr() helpers

Remove bpf_ prefix, which causes these helpers to be reported in verifier
dump as bpf_bpf_this_cpu_ptr() and bpf_bpf_per_cpu_ptr(), respectively. Lets
fix it as long as it is still possible before UAPI freezes on these helpers.

Fixes: eaa6bcb71ef6 ("bpf: Introduce bpf_per_cpu_ptr()")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Fri, 11 Dec 2020 22:10:51 +0000 (14:10 -0800)]
Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "8 patches.

  Subsystems affected by this patch series: proc, selftests, kbuild, and
  mm (pagecache, kasan, hugetlb)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm/hugetlb: clear compound_nr before freeing gigantic pages
  kasan: fix object remaining in offline per-cpu quarantine
  elfcore: fix building with clang
  initramfs: fix clang build failure
  kbuild: avoid static_assert for genksyms
  selftest/fpu: avoid clang warning
  proc: use untagged_addr() for pagemap_read addresses
  revert "mm/filemap: add static for function __add_to_page_cache_locked"

3 years agomm/hugetlb: clear compound_nr before freeing gigantic pages
Gerald Schaefer [Fri, 11 Dec 2020 21:36:53 +0000 (13:36 -0800)]
mm/hugetlb: clear compound_nr before freeing gigantic pages

Commit 1378a5ee451a ("mm: store compound_nr as well as compound_order")
added compound_nr counter to first tail struct page, overlaying with
page->mapping.  The overlay itself is fine, but while freeing gigantic
hugepages via free_contig_range(), a "bad page" check will trigger for
non-NULL page->mapping on the first tail page:

  BUG: Bad page state in process bash  pfn:380001
  page:00000000c35f0856 refcount:0 mapcount:0 mapping:00000000126b68aa index:0x0 pfn:0x380001
  aops:0x0
  flags: 0x3ffff00000000000()
  raw: 3ffff00000000000 0000000000000100 0000000000000122 0000000100000000
  raw: 0000000000000000 0000000000000000 ffffffff00000000 0000000000000000
  page dumped because: non-NULL mapping
  Modules linked in:
  CPU: 6 PID: 616 Comm: bash Not tainted 5.10.0-rc7-next-20201208 #1
  Hardware name: IBM 3906 M03 703 (LPAR)
  Call Trace:
    show_stack+0x6e/0xe8
    dump_stack+0x90/0xc8
    bad_page+0xd6/0x130
    free_pcppages_bulk+0x26a/0x800
    free_unref_page+0x6e/0x90
    free_contig_range+0x94/0xe8
    update_and_free_page+0x1c4/0x2c8
    free_pool_huge_page+0x11e/0x138
    set_max_huge_pages+0x228/0x300
    nr_hugepages_store_common+0xb8/0x130
    kernfs_fop_write+0xd2/0x218
    vfs_write+0xb0/0x2b8
    ksys_write+0xac/0xe0
    system_call+0xe6/0x288
  Disabling lock debugging due to kernel taint

This is because only the compound_order is cleared in
destroy_compound_gigantic_page(), and compound_nr is set to
1U << order == 1 for order 0 in set_compound_order(page, 0).

Fix this by explicitly clearing compound_nr for first tail page after
calling set_compound_order(page, 0).

Link: https://lkml.kernel.org/r/20201208182813.66391-2-gerald.schaefer@linux.ibm.com
Fixes: 1378a5ee451a ("mm: store compound_nr as well as compound_order")
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: <stable@vger.kernel.org> [5.9+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agokasan: fix object remaining in offline per-cpu quarantine
Kuan-Ying Lee [Fri, 11 Dec 2020 21:36:49 +0000 (13:36 -0800)]
kasan: fix object remaining in offline per-cpu quarantine

We hit this issue in our internal test.  When enabling generic kasan, a
kfree()'d object is put into per-cpu quarantine first.  If the cpu goes
offline, object still remains in the per-cpu quarantine.  If we call
kmem_cache_destroy() now, slub will report "Objects remaining" error.

  =============================================================================
  BUG test_module_slab (Not tainted): Objects remaining in test_module_slab on __kmem_cache_shutdown()
  -----------------------------------------------------------------------------

  Disabling lock debugging due to kernel taint
  INFO: Slab 0x(____ptrval____) objects=34 used=1 fp=0x(____ptrval____) flags=0x2ffff00000010200
  CPU: 3 PID: 176 Comm: cat Tainted: G    B             5.10.0-rc1-00007-g4525c8781ec0-dirty #10
  Hardware name: linux,dummy-virt (DT)
  Call trace:
     dump_backtrace+0x0/0x2b0
     show_stack+0x18/0x68
     dump_stack+0xfc/0x168
     slab_err+0xac/0xd4
     __kmem_cache_shutdown+0x1e4/0x3c8
     kmem_cache_destroy+0x68/0x130
     test_version_show+0x84/0xf0
     module_attr_show+0x40/0x60
     sysfs_kf_seq_show+0x128/0x1c0
     kernfs_seq_show+0xa0/0xb8
     seq_read+0x1f0/0x7e8
     kernfs_fop_read+0x70/0x338
     vfs_read+0xe4/0x250
     ksys_read+0xc8/0x180
     __arm64_sys_read+0x44/0x58
     el0_svc_common.constprop.0+0xac/0x228
     do_el0_svc+0x38/0xa0
     el0_sync_handler+0x170/0x178
     el0_sync+0x174/0x180
  INFO: Object 0x(____ptrval____) @offset=15848
  INFO: Allocated in test_version_show+0x98/0xf0 age=8188 cpu=6 pid=172
     stack_trace_save+0x9c/0xd0
     set_track+0x64/0xf0
     alloc_debug_processing+0x104/0x1a0
     ___slab_alloc+0x628/0x648
     __slab_alloc.isra.0+0x2c/0x58
     kmem_cache_alloc+0x560/0x588
     test_version_show+0x98/0xf0
     module_attr_show+0x40/0x60
     sysfs_kf_seq_show+0x128/0x1c0
     kernfs_seq_show+0xa0/0xb8
     seq_read+0x1f0/0x7e8
     kernfs_fop_read+0x70/0x338
     vfs_read+0xe4/0x250
     ksys_read+0xc8/0x180
     __arm64_sys_read+0x44/0x58
     el0_svc_common.constprop.0+0xac/0x228
  kmem_cache_destroy test_module_slab: Slab cache still has objects

Register a cpu hotplug function to remove all objects in the offline
per-cpu quarantine when cpu is going offline.  Set a per-cpu variable to
indicate this cpu is offline.

[qiang.zhang@windriver.com: fix slab double free when cpu-hotplug]
Link: https://lkml.kernel.org/r/20201204102206.20237-1-qiang.zhang@windriver.com
Link: https://lkml.kernel.org/r/1606895585-17382-2-git-send-email-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Suggested-by: Dmitry Vyukov <dvyukov@google.com>
Reported-by: Guangye Yang <guangye.yang@mediatek.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Cc: Miles Chen <miles.chen@mediatek.com>
Cc: Qian Cai <qcai@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoelfcore: fix building with clang
Arnd Bergmann [Fri, 11 Dec 2020 21:36:46 +0000 (13:36 -0800)]
elfcore: fix building with clang

kernel/elfcore.c only contains weak symbols, which triggers a bug with
clang in combination with recordmcount:

  Cannot find symbol for section 2: .text.
  kernel/elfcore.o: failed

Move the empty stubs into linux/elfcore.h as inline functions.  As only
two architectures use these, just use the architecture specific Kconfig
symbols to key off the declaration.

Link: https://lkml.kernel.org/r/20201204165742.3815221-2-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Barret Rhoden <brho@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoinitramfs: fix clang build failure
Arnd Bergmann [Fri, 11 Dec 2020 21:36:42 +0000 (13:36 -0800)]
initramfs: fix clang build failure

There is only one function in init/initramfs.c that is in the .text
section, and it is marked __weak.  When building with clang-12 and the
integrated assembler, this leads to a bug with recordmcount:

  ./scripts/recordmcount  "init/initramfs.o"
  Cannot find symbol for section 2: .text.
  init/initramfs.o: failed

I'm not quite sure what exactly goes wrong, but I notice that this
function is only ever called from an __init function, and normally
inlined.  Marking it __init as well is clearly correct and it leads to
recordmcount no longer complaining.

Link: https://lkml.kernel.org/r/20201204165742.3815221-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Barret Rhoden <brho@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agokbuild: avoid static_assert for genksyms
Arnd Bergmann [Fri, 11 Dec 2020 21:36:38 +0000 (13:36 -0800)]
kbuild: avoid static_assert for genksyms

genksyms does not know or care about the _Static_assert() built-in, and
sometimes falls back to ignoring the later symbols, which causes
undefined behavior such as

  WARNING: modpost: EXPORT symbol "ethtool_set_ethtool_phy_ops" [vmlinux] version generation failed, symbol will not be versioned.
  ld: net/ethtool/common.o: relocation R_AARCH64_ABS32 against `__crc_ethtool_set_ethtool_phy_ops' can not be used when making a shared object
  net/ethtool/common.o:(_ftrace_annotated_branch+0x0): dangerous relocation: unsupported relocation

Redefine static_assert for genksyms to avoid that.

Link: https://lkml.kernel.org/r/20201203230955.1482058-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Cc: Marco Elver <elver@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoselftest/fpu: avoid clang warning
Arnd Bergmann [Fri, 11 Dec 2020 21:36:35 +0000 (13:36 -0800)]
selftest/fpu: avoid clang warning

With extra warnings enabled, clang complains about the redundant
-mhard-float argument:

  clang: error: argument unused during compilation: '-mhard-float' [-Werror,-Wunused-command-line-argument]

Move this into the gcc-only part of the Makefile.

Link: https://lkml.kernel.org/r/20201203223652.1320700-1-arnd@kernel.org
Fixes: 4185b3b92792 ("selftests/fpu: Add an FPU selftest")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Petteri Aimonen <jpa@git.mail.kapsi.fi>
Cc: Borislav Petkov <bp@suse.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoproc: use untagged_addr() for pagemap_read addresses
Miles Chen [Fri, 11 Dec 2020 21:36:31 +0000 (13:36 -0800)]
proc: use untagged_addr() for pagemap_read addresses

When we try to visit the pagemap of a tagged userspace pointer, we find
that the start_vaddr is not correct because of the tag.
To fix it, we should untag the userspace pointers in pagemap_read().

I tested with 5.10-rc4 and the issue remains.

Explanation from Catalin in [1]:

 "Arguably, that's a user-space bug since tagged file offsets were never
  supported. In this case it's not even a tag at bit 56 as per the arm64
  tagged address ABI but rather down to bit 47. You could say that the
  problem is caused by the C library (malloc()) or whoever created the
  tagged vaddr and passed it to this function. It's not a kernel
  regression as we've never supported it.

  Now, pagemap is a special case where the offset is usually not
  generated as a classic file offset but rather derived by shifting a
  user virtual address. I guess we can make a concession for pagemap
  (only) and allow such offset with the tag at bit (56 - PAGE_SHIFT + 3)"

My test code is based on [2]:

A userspace pointer which has been tagged by 0xb4: 0xb400007662f541c8

userspace program:

  uint64 OsLayer::VirtualToPhysical(void *vaddr) {
uint64 frame, paddr, pfnmask, pagemask;
int pagesize = sysconf(_SC_PAGESIZE);
off64_t off = ((uintptr_t)vaddr) / pagesize * 8; // off = 0xb400007662f541c8 / pagesize * 8 = 0x5a00003b317aa0
int fd = open(kPagemapPath, O_RDONLY);
...

if (lseek64(fd, off, SEEK_SET) != off || read(fd, &frame, 8) != 8) {
int err = errno;
string errtxt = ErrorString(err);
if (fd >= 0)
close(fd);
return 0;
}
  ...
  }

kernel fs/proc/task_mmu.c:

  static ssize_t pagemap_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
  {
...
src = *ppos;
svpfn = src / PM_ENTRY_BYTES; // svpfn == 0xb400007662f54
start_vaddr = svpfn << PAGE_SHIFT; // start_vaddr == 0xb400007662f54000
end_vaddr = mm->task_size;

/* watch out for wraparound */
// svpfn == 0xb400007662f54
// (mm->task_size >> PAGE) == 0x8000000
if (svpfn > mm->task_size >> PAGE_SHIFT) // the condition is true because of the tag 0xb4
start_vaddr = end_vaddr;

ret = 0;
while (count && (start_vaddr < end_vaddr)) { // we cannot visit correct entry because start_vaddr is set to end_vaddr
int len;
unsigned long end;
...
}
...
  }

[1] https://lore.kernel.org/patchwork/patch/1343258/
[2] https://github.com/stressapptest/stressapptest/blob/master/src/os.cc#L158

Link: https://lkml.kernel.org/r/20201204024347.8295-1-miles.chen@mediatek.com
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Song Bao Hua (Barry Song) <song.bao.hua@hisilicon.com>
Cc: <stable@vger.kernel.org> [5.4-]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agorevert "mm/filemap: add static for function __add_to_page_cache_locked"
Andrew Morton [Fri, 11 Dec 2020 21:36:27 +0000 (13:36 -0800)]
revert "mm/filemap: add static for function __add_to_page_cache_locked"

Revert commit 3351b16af494 ("mm/filemap: add static for function
__add_to_page_cache_locked") due to incompatibility with
ALLOW_ERROR_INJECTION which result in build errors.

Link: https://lkml.kernel.org/r/CAADnVQJ6tmzBXvtroBuEH6QA0H+q7yaSKxrVvVxhqr3KBZdEXg@mail.gmail.com
Tested-by: Justin Forbes <jmforbes@linuxtx.org>
Tested-by: Greg Thelen <gthelen@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Michal Kubecek <mkubecek@suse.cz>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Tony Luck <tony.luck@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agomtd: rawnand: xway: Do not force a particular software ECC engine
Miquel Raynal [Thu, 3 Dec 2020 19:03:40 +0000 (20:03 +0100)]
mtd: rawnand: xway: Do not force a particular software ECC engine

Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.

Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.

Add the necessary logic to be sure Hamming keeps being only a default.

Fixes: d525914b5bd8 ("mtd: rawnand: xway: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-10-miquel.raynal@bootlin.com
3 years agomtd: rawnand: socrates: Do not force a particular software ECC engine
Miquel Raynal [Thu, 3 Dec 2020 19:03:39 +0000 (20:03 +0100)]
mtd: rawnand: socrates: Do not force a particular software ECC engine

Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.

Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.

Add the necessary logic to be sure Hamming keeps being only a default.

Fixes: b36bf0a0fe5d ("mtd: rawnand: socrates: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-9-miquel.raynal@bootlin.com
3 years agomtd: rawnand: plat_nand: Do not force a particular software ECC engine
Miquel Raynal [Thu, 3 Dec 2020 19:03:38 +0000 (20:03 +0100)]
mtd: rawnand: plat_nand: Do not force a particular software ECC engine

Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.

Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.

Add the necessary logic to be sure Hamming keeps being only a default.

Fixes: 612e048e6aab ("mtd: rawnand: plat_nand: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-8-miquel.raynal@bootlin.com
3 years agomtd: rawnand: pasemi: Do not force a particular software ECC engine
Miquel Raynal [Thu, 3 Dec 2020 19:03:37 +0000 (20:03 +0100)]
mtd: rawnand: pasemi: Do not force a particular software ECC engine

Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.

Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.

Add the necessary logic to be sure Hamming keeps being only a default.

Fixes: 8fc6f1f042b2 ("mtd: rawnand: pasemi: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-7-miquel.raynal@bootlin.com
3 years agomtd: rawnand: orion: Do not force a particular software ECC engine
Miquel Raynal [Thu, 3 Dec 2020 19:03:36 +0000 (20:03 +0100)]
mtd: rawnand: orion: Do not force a particular software ECC engine

Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.

Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.

Add the necessary logic to be sure Hamming keeps being only a default.

Reported-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Fixes: 553508cec2e8 ("mtd: rawnand: orion: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-6-miquel.raynal@bootlin.com
3 years agomtd: rawnand: mpc5121: Do not force a particular software ECC engine
Miquel Raynal [Thu, 3 Dec 2020 19:03:35 +0000 (20:03 +0100)]
mtd: rawnand: mpc5121: Do not force a particular software ECC engine

Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.

Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.

Add the necessary logic to be sure Hamming keeps being only a default.

Fixes: 6dd09f775b72 ("mtd: rawnand: mpc5121: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-5-miquel.raynal@bootlin.com
3 years agomtd: rawnand: gpio: Do not force a particular software ECC engine
Miquel Raynal [Thu, 3 Dec 2020 19:03:34 +0000 (20:03 +0100)]
mtd: rawnand: gpio: Do not force a particular software ECC engine

Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.

Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.

Add the necessary logic to be sure Hamming keeps being only a default.

Fixes: f6341f6448e0 ("mtd: rawnand: gpio: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-4-miquel.raynal@bootlin.com
3 years agomtd: rawnand: au1550: Do not force a particular software ECC engine
Miquel Raynal [Thu, 3 Dec 2020 19:03:33 +0000 (20:03 +0100)]
mtd: rawnand: au1550: Do not force a particular software ECC engine

Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.

Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.

Add the necessary logic to be sure Hamming keeps being only a default.

Fixes: dbffc8ccdf3a ("mtd: rawnand: au1550: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-3-miquel.raynal@bootlin.com
3 years agomtd: rawnand: ams-delta: Do not force a particular software ECC engine
Miquel Raynal [Thu, 3 Dec 2020 19:03:32 +0000 (20:03 +0100)]
mtd: rawnand: ams-delta: Do not force a particular software ECC engine

Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.

Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.

Add the necessary logic to be sure Hamming keeps being only a default.

Fixes: 59d93473323a ("mtd: rawnand: ams-delta: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-2-miquel.raynal@bootlin.com
3 years agomt76: remove unused variable q
Souptick Joarder [Wed, 9 Dec 2020 19:36:57 +0000 (01:06 +0530)]
mt76: remove unused variable q

Kernel test robot reported warning:

   drivers/net/wireless/mediatek/mt76/tx.c: In function
'mt76_txq_schedule':
>> drivers/net/wireless/mediatek/mt76/tx.c:499:21: warning: variable 'q'
>> set but not used [-Wunused-but-set-variable]
     499 |  struct mt76_queue *q;
         |                     ^

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607542617-4005-1-git-send-email-jrdr.linux@gmail.com
3 years agoMerge tag 'pinctrl-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Fri, 11 Dec 2020 18:25:04 +0000 (10:25 -0800)]
Merge tag 'pinctrl-v5.10-3' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Here is a late set of pin control fixes for v5.10, most concern some
  minor and major issues found in the Intel drivers. Some are so hairy
  that I have no idea what is going on there, but luckily the maintainer
  knows what's up.

  We also have an interesting fix for AMD, which makes AMD-based laptops
  more stable IIUC.

  Summary:

   - Fix up some SPI group and a register offset on Intel Jasperlake

   - Set default bias on Intel Merrifield

   - Preserve debouncing on Intel Baytrail

   - Stop .set_type() irqchip callback in the AMD driver from fiddling
     with the debounce filter

   - Fix access to GPIO banks that are pass-thru on the Aspeed

   - Fix a fix for the Intel pin control driver to disable Rx/Tx when
     requesting a UART line as GPIO"

* tag 'pinctrl-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: intel: Actually disable Tx and Rx buffers on GPIO request
  pinctrl: aspeed: Fix GPIO requests on pass-through banks
  pinctrl: amd: remove debounce filter setting in IRQ type setting
  pinctrl: baytrail: Avoid clearing debounce value when turning it off
  pinctrl: merrifield: Set default bias in case no particular value given
  pinctrl: jasperlake: Fix HOSTSW_OWN offset
  pinctrl: jasperlake: Unhide SPI group of pins

3 years agoiwlwifi: fw: acpi: Demote non-conformant function headers
Lee Jones [Thu, 26 Nov 2020 13:31:51 +0000 (13:31 +0000)]
iwlwifi: fw: acpi: Demote non-conformant function headers

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/intel/iwlwifi/fw/acpi.c:123: warning: Function parameter or member 'dev' not described in 'iwl_acpi_get_dsm_object'
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c:123: warning: Function parameter or member 'rev' not described in 'iwl_acpi_get_dsm_object'
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c:123: warning: Function parameter or member 'func' not described in 'iwl_acpi_get_dsm_object'
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c:123: warning: Function parameter or member 'args' not described in 'iwl_acpi_get_dsm_object'
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c:142: warning: Function parameter or member 'dev' not described in 'iwl_acpi_get_dsm_u8'
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c:142: warning: Function parameter or member 'rev' not described in 'iwl_acpi_get_dsm_u8'
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c:142: warning: Function parameter or member 'func' not described in 'iwl_acpi_get_dsm_u8'

Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Intel Linux Wireless <linuxwifi@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126133152.3211309-17-lee.jones@linaro.org
3 years agoiwlwifi: fw: dbg: Fix misspelling of 'reg_data' in function header
Lee Jones [Thu, 26 Nov 2020 13:31:49 +0000 (13:31 +0000)]
iwlwifi: fw: dbg: Fix misspelling of 'reg_data' in function header

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/intel/iwlwifi/fw/dbg.c:1932: warning: Function parameter or member 'reg_data' not described in 'iwl_dump_ini_mem'
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c:1932: warning: Excess function parameter 'reg' description in 'iwl_dump_ini_mem'

Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Intel Linux Wireless <linuxwifi@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126133152.3211309-15-lee.jones@linaro.org
3 years agoiwlwifi: iwl-phy-db: Add missing struct member description for 'trans'
Lee Jones [Thu, 26 Nov 2020 13:31:48 +0000 (13:31 +0000)]
iwlwifi: iwl-phy-db: Add missing struct member description for 'trans'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/intel/iwlwifi/iwl-phy-db.c:97: warning: Function parameter or member 'trans' not described in 'iwl_phy_db'

Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Intel Linux Wireless <linuxwifi@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126133152.3211309-14-lee.jones@linaro.org
3 years agoiwlwifi: iwl-eeprom-parse: Fix 'struct iwl_eeprom_enhanced_txpwr's header
Lee Jones [Thu, 26 Nov 2020 13:31:43 +0000 (13:31 +0000)]
iwlwifi: iwl-eeprom-parse: Fix 'struct iwl_eeprom_enhanced_txpwr's header

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.c:340: warning: cannot understand function prototype: 'struct iwl_eeprom_enhanced_txpwr '

Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Intel Linux Wireless <linuxwifi@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126133152.3211309-9-lee.jones@linaro.org
3 years agoiwlwifi: iwl-eeprom-read: Demote one nonconformant function header
Lee Jones [Thu, 26 Nov 2020 13:31:42 +0000 (13:31 +0000)]
iwlwifi: iwl-eeprom-read: Demote one nonconformant function header

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/intel/iwlwifi/iwl-eeprom-read.c:347: warning: Function parameter or member 'trans' not described in 'iwl_read_eeprom'
 drivers/net/wireless/intel/iwlwifi/iwl-eeprom-read.c:347: warning: Function parameter or member 'eeprom' not described in 'iwl_read_eeprom'
 drivers/net/wireless/intel/iwlwifi/iwl-eeprom-read.c:347: warning: Function parameter or member 'eeprom_size' not described in 'iwl_read_eeprom'

Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Intel Linux Wireless <linuxwifi@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126133152.3211309-8-lee.jones@linaro.org
3 years agoiwlwifi: mvm: rs: Demote non-conformant function documentation headers
Lee Jones [Thu, 26 Nov 2020 13:31:37 +0000 (13:31 +0000)]
iwlwifi: mvm: rs: Demote non-conformant function documentation headers

Also add documentation for 'mvm'.

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:400: warning: cannot understand function prototype: 'const u16 expected_tpt_legacy[IWL_RATE_COUNT] = '
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:684: warning: Function parameter or member 'mvm' not described in '_rs_collect_tx_data'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:684: warning: Function parameter or member 'tbl' not described in '_rs_collect_tx_data'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:684: warning: Function parameter or member 'scale_index' not described in '_rs_collect_tx_data'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:684: warning: Function parameter or member 'attempts' not described in '_rs_collect_tx_data'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:684: warning: Function parameter or member 'successes' not described in '_rs_collect_tx_data'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:684: warning: Function parameter or member 'window' not described in '_rs_collect_tx_data'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:2677: warning: duplicate section name 'NOTE'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:2682: warning: Function parameter or member 'mvm' not described in 'rs_initialize_lq'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:2682: warning: Function parameter or member 'sta' not described in 'rs_initialize_lq'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:2682: warning: Function parameter or member 'lq_sta' not described in 'rs_initialize_lq'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:2682: warning: Function parameter or member 'band' not described in 'rs_initialize_lq'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:3761: warning: Function parameter or member 'mvm' not described in 'rs_program_fix_rate'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:3761: warning: Function parameter or member 'lq_sta' not described in 'rs_program_fix_rate'
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c:4213: warning: Function parameter or member 'mvm' not described in 'iwl_mvm_tx_protection'

Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Intel Linux Wireless <linuxwifi@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126133152.3211309-3-lee.jones@linaro.org
3 years agoMerge tag 'v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux...
Linus Torvalds [Fri, 11 Dec 2020 18:22:17 +0000 (10:22 -0800)]
Merge tag 'v5.10-3' of git://git./linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "These are hopefully the last GPIO fixes for this cycle.

  All are driver fixes except a small resource leak for pin ranges in
  the gpiolib. Two are PM related, which is nice because when developers
  start to find PM bugs it is usually because they have smoked out the
  bugs of more severe nature.

  Summary:

   - Fix runtime PM balancing on the errorpath of the Arizona driver

   - Fix a suspend NULL pointer reference in the dwapb driver

   - Balance free:ing in gpiochip_generic_free()

   - Fix runtime PM balancing on the errorpath of the zynq driver

   - Fix irqdomain use-after-free in the mvebu driver

   - Break an eternal loop in the spreadtrum EIC driver"

* tag 'v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: eic-sprd: break loop when getting NULL device resource
  gpio: mvebu: fix potential user-after-free on probe
  gpio: zynq: fix reference leak in zynq_gpio functions
  gpiolib: Don't free if pin ranges are not defined
  gpio: dwapb: fix NULL pointer dereference at dwapb_gpio_suspend()
  gpio: arizona: disable pm_runtime in case of failure

3 years agoiwlwifi: iwl-drv: Fix fall-through warnings for Clang
Gustavo A. R. Silva [Fri, 20 Nov 2020 18:36:35 +0000 (12:36 -0600)]
iwlwifi: iwl-drv: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix a
warning by replacing a /* fall through */ comment with the new
pseudo-keyword macro fallthrough; instead of letting the code fall
through to the next case.

Notice that Clang doesn't recognize /* fall through */ comments as
implicit fall-through markings.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/edd98d194bfc98b4be93a9bdc303630b719c0e66.1605896060.git.gustavoars@kernel.org
3 years agoiwlwifi: dvm: Fix fall-through warnings for Clang
Gustavo A. R. Silva [Tue, 17 Nov 2020 15:59:04 +0000 (09:59 -0600)]
iwlwifi: dvm: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly using the fallthrough pseudo-keyword as a
replacement for a number of "fall through" markings.

Notice that Clang doesn't recognize "fall through" comments as
implicit fall-through.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201117155904.GA14551@embeddedor
3 years agoiwlwifi: mvm: Fix fall-through warnings for Clang
Gustavo A. R. Silva [Tue, 17 Nov 2020 13:50:53 +0000 (07:50 -0600)]
iwlwifi: mvm: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly using the fallthrough pseudo-keyword as a
replacement for a number of "fall through" markings.

Notice that Clang doesn't recognize "fall through" comments as
implicit fall-through.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201117135053.GA13248@embeddedor
3 years agoMerge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 11 Dec 2020 18:10:13 +0000 (10:10 -0800)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "Two small clk driver build fixes

   - Remove __packed from a Renesas struct to improve portability

   - Fix a linking problem with i.MX when config options don't agree"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: renesas: r9a06g032: Drop __packed for portability
  clk: imx: scu: fix MXC_CLK_SCU module build break

3 years agomac80211: add ieee80211_set_sar_specs
Carl Huang [Thu, 3 Dec 2020 10:37:27 +0000 (05:37 -0500)]
mac80211: add ieee80211_set_sar_specs

This change registers ieee80211_set_sar_specs to
mac80211_config_ops, so cfg80211 can call it.

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Abhishek Kumar <kuabhs@chromium.org>
Link: https://lore.kernel.org/r/20201203103728.3034-3-cjhuang@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agonl80211: add common API to configure SAR power limitations
Carl Huang [Thu, 3 Dec 2020 10:37:26 +0000 (05:37 -0500)]
nl80211: add common API to configure SAR power limitations

NL80211_CMD_SET_SAR_SPECS is added to configure SAR from
user space. NL80211_ATTR_SAR_SPEC is used to pass the SAR
power specification when used with NL80211_CMD_SET_SAR_SPECS.

Wireless driver needs to register SAR type, supported frequency
ranges to wiphy, so user space can query it. The index in
frequency range is used to specify which sub band the power
limitation applies to. The SAR type is for compatibility, so later
other SAR mechanism can be implemented without breaking the user
space SAR applications.

Normal process is user space queries the SAR capability, and
gets the index of supported frequency ranges and associates the
power limitation with this index and sends to kernel.

Here is an example of message send to kernel:
8c 00 00 00 08 00 01 00 00 00 00 00 38 00 2b 81
08 00 01 00 00 00 00 00 2c 00 02 80 14 00 00 80
08 00 02 00 00 00 00 00 08 00 01 00 38 00 00 00
14 00 01 80 08 00 02 00 01 00 00 00 08 00 01 00
48 00 00 00

NL80211_CMD_SET_SAR_SPECS:  0x8c
NL80211_ATTR_WIPHY:     0x01(phy idx is 0)
NL80211_ATTR_SAR_SPEC:  0x812b (NLA_NESTED)
NL80211_SAR_ATTR_TYPE:  0x00 (NL80211_SAR_TYPE_POWER)
NL80211_SAR_ATTR_SPECS: 0x8002 (NLA_NESTED)
freq range 0 power: 0x38 in 0.25dbm unit (14dbm)
freq range 1 power: 0x48 in 0.25dbm unit (18dbm)

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Abhishek Kumar <kuabhs@chromium.org>
Link: https://lore.kernel.org/r/20201203103728.3034-2-cjhuang@codeaurora.org
[minor edits, NLA parse cleanups]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: fix a mistake check for rx_stats update
Wen Gong [Wed, 9 Dec 2020 03:06:29 +0000 (11:06 +0800)]
mac80211: fix a mistake check for rx_stats update

It should be !is_multicast_ether_addr() in ieee80211_rx_h_sta_process()
for the rx_stats update, below commit remove the !, this patch is to
change it back.

It lead the rx rate "iw wlan0 station dump" become invalid for some
scenario when IEEE80211_HW_USES_RSS is set.

Fixes: 09a740ce352e ("mac80211: receive and process S1G beacons")
Signed-off-by: Wen Gong <wgong@codeaurora.org>
Link: https://lore.kernel.org/r/1607483189-3891-1-git-send-email-wgong@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: mlme: save ssid info to ieee80211_bss_conf while assoc
Wen Gong [Mon, 7 Dec 2020 03:36:34 +0000 (11:36 +0800)]
mac80211: mlme: save ssid info to ieee80211_bss_conf while assoc

The ssid info of ieee80211_bss_conf is filled in ieee80211_start_ap()
for AP mode. For STATION mode, it is empty, save the info from struct
ieee80211_mgd_assoc_data, the struct ieee80211_mgd_assoc_data will be
freed after assoc, so the ssid info of ieee80211_mgd_assoc_data can not
access after assoc, save ssid info to ieee80211_bss_conf, then ssid info
can be still access after assoc.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Link: https://lore.kernel.org/r/1607312195-3583-2-git-send-email-wgong@codeaurora.org
[reset on disassoc]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: Update rate control on channel change
Ilan Peer [Sun, 6 Dec 2020 12:54:50 +0000 (14:54 +0200)]
mac80211: Update rate control on channel change

A channel change or a channel bandwidth change can impact the
rate control logic. However, the rate control logic was not updated
before/after such a change, which might result in unexpected
behavior.

Fix this by updating the stations rate control logic when the
corresponding channel context changes.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.600d967fe3c9.I48305f25cfcc9c032c77c51396e9e9b882748a86@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: don't filter out beacons once we start CSA
Emmanuel Grumbach [Sun, 6 Dec 2020 12:54:49 +0000 (14:54 +0200)]
mac80211: don't filter out beacons once we start CSA

I hit a bug in which we started a CSA with an action frame,
but the AP changed its mind and didn't change the beacon.
The CSA wasn't cancelled and we lost the connection.

The beacons were ignored because they never changed: they
never contained any CSA IE. Because they never changed, the
CRC of the beacon didn't change either which made us ignore
the beacons instead of processing them.

Now what happens is:
1) beacon has CRC X and it is valid. No CSA IE in the beacon
2) as long as beacon's CRC X, don't process their IEs
3) rx action frame with CSA
4) invalidate the beacon's CRC
5) rx beacon, CRC is still X, but now it is invalid
6) process the beacon, detect there is no CSA IE
7) abort CSA

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.83470b8407e6.I739b907598001362744692744be15335436b8351@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: Fix calculation of minimal channel width
Ilan Peer [Sun, 6 Dec 2020 12:54:48 +0000 (14:54 +0200)]
mac80211: Fix calculation of minimal channel width

When calculating the minimal channel width for channel context,
the current operation Rx channel width of a station was used and not
the overall channel width capability of the station, i.e., both for
Tx and Rx.

Fix ieee80211_get_sta_bw() to use the maximal channel width the
station is capable. While at it make the function static.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.4387040b99a0.I74bcf19238f75a5960c4098b10e355123d933281@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: ignore country element TX power on 6 GHz
Johannes Berg [Sun, 6 Dec 2020 12:54:47 +0000 (14:54 +0200)]
mac80211: ignore country element TX power on 6 GHz

Updates to the 802.11ax draft are coming that deprecate the
country element in favour of the transmit power envelope
element, and make the maximum transmit power level field in
the triplets reserved, so if we parse them we'd use 0 dBm
transmit power.

Follow suit and completely ignore the element on 6 GHz for
purposes of determining TX power.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.9abf9f6b4f88.Icb6e52af586edcc74f1f0360e8f6fc9ef2bfe8f5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: use bitfield helpers for BA session action frames
Johannes Berg [Sun, 6 Dec 2020 12:54:46 +0000 (14:54 +0200)]
mac80211: use bitfield helpers for BA session action frames

Use the appropriate bitfield helpers for encoding and decoding
the capability field in the BA session action frames instead of
open-coding the shifts/masks.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.0c46e5097cc0.I06e75706770c40b9ba1cabd1f8a78ab7a05c5b73@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: support Rx timestamp calculation for all preamble types
Avraham Stern [Sun, 6 Dec 2020 12:54:45 +0000 (14:54 +0200)]
mac80211: support Rx timestamp calculation for all preamble types

Add support for calculating the Rx timestamp for HE frames.
Since now all frame types are supported, allow setting the Rx
timestamp regardless of the frame type.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.4786559af475.Ia54486bb0a12e5351f9d5c60ef6fcda7c9e7141c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: don't set set TDLS STA bandwidth wider than possible
Johannes Berg [Sun, 6 Dec 2020 12:54:44 +0000 (14:54 +0200)]
mac80211: don't set set TDLS STA bandwidth wider than possible

When we set up a TDLS station, we set sta->sta.bandwidth solely based
on the capabilities, because the "what's the current bandwidth" check
is bypassed and only applied for other types of stations.

This leads to the unfortunate scenario that the sta->sta.bandwidth is
160 MHz if both stations support it, but we never actually configure
this bandwidth unless the AP is already using 160 MHz; even for wider
bandwidth support we only go up to 80 MHz (at least right now.)

For iwlwifi, this can also lead to firmware asserts, telling us that
we've configured the TX rates for a higher bandwidth than is actually
available due to the PHY configuration.

For non-TDLS, we check against the interface's requested bandwidth,
but we explicitly skip this check for TDLS to cope with the wider BW
case. Change this to
 (a) still limit to the TDLS peer's own chandef, which gets factored
     into the overall PHY configuration we request from the driver,
     and
 (b) limit it to when the TDLS peer is authorized, because it's only
     factored into the channel context in this case.

Fixes: 504871e602d9 ("mac80211: fix bandwidth computation for TDLS peers")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.fcc7d29c4590.I11f77e9e25ddf871a3c8d5604650c763e2c5887a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: support driver-based disconnect with reconnect hint
Johannes Berg [Sun, 6 Dec 2020 12:54:43 +0000 (14:54 +0200)]
mac80211: support driver-based disconnect with reconnect hint

Support the driver indicating that a disconnection needs
to be performed, and pass through the reconnect hint in
this case.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.5c8dab7a22a0.I58459fdf6968b16c90cab9c574f0f04ca22b0c79@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agocfg80211: support immediate reconnect request hint
Johannes Berg [Sun, 6 Dec 2020 12:54:42 +0000 (14:54 +0200)]
cfg80211: support immediate reconnect request hint

There are cases where it's necessary to disconnect, but an
immediate reconnection is desired. Support a hint to userspace
that this is the case, by including a new attribute in the
deauth or disassoc event.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.58d33941fb9d.I0e7168c205c7949529c8e3b86f3c9b12c01a7017@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: use struct assignment for he_obss_pd
Johannes Berg [Sun, 6 Dec 2020 12:54:41 +0000 (14:54 +0200)]
mac80211: use struct assignment for he_obss_pd

Use a struct assignment here, which is clearer than the
memcpy() and type-safe as well.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.2ab3aad7d5fc.Iaca4ee6db651b7de17e4351f4be7973ff8600186@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agocfg80211: remove struct ieee80211_he_bss_color
Johannes Berg [Sun, 6 Dec 2020 12:54:40 +0000 (14:54 +0200)]
cfg80211: remove struct ieee80211_he_bss_color

We don't really use this struct, we're now using
struct cfg80211_he_bss_color instead.

Change the one place in mac80211 that's using the old
name to use struct assignment instead of memcpy() and
thus remove the wrong sizeof while at it.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.f6698d97ae4e.Iba2dffcb79c4ab80bde7407609806010b55edfdf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agonl80211: validate key indexes for cfg80211_registered_device
Anant Thazhemadam [Fri, 4 Dec 2020 21:58:25 +0000 (03:28 +0530)]
nl80211: validate key indexes for cfg80211_registered_device

syzbot discovered a bug in which an OOB access was being made because
an unsuitable key_idx value was wrongly considered to be acceptable
while deleting a key in nl80211_del_key().

Since we don't know the cipher at the time of deletion, if
cfg80211_validate_key_settings() were to be called directly in
nl80211_del_key(), even valid keys would be wrongly determined invalid,
and deletion wouldn't occur correctly.
For this reason, a new function - cfg80211_valid_key_idx(), has been
created, to determine if the key_idx value provided is valid or not.
cfg80211_valid_key_idx() is directly called in 2 places -
nl80211_del_key(), and cfg80211_validate_key_settings().

Reported-by: syzbot+49d4cab497c2142ee170@syzkaller.appspotmail.com
Tested-by: syzbot+49d4cab497c2142ee170@syzkaller.appspotmail.com
Suggested-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Link: https://lore.kernel.org/r/20201204215825.129879-1-anant.thazhemadam@gmail.com
Cc: stable@vger.kernel.org
[also disallow IGTK key IDs if no IGTK cipher is supported]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agocfg80211: include block-tx flag in channel switch started event
Johannes Berg [Sun, 29 Nov 2020 15:30:55 +0000 (17:30 +0200)]
cfg80211: include block-tx flag in channel switch started event

In the NL80211_CMD_CH_SWITCH_STARTED_NOTIFY event, include the
NL80211_ATTR_CH_SWITCH_BLOCK_TX flag attribute if block-tx was
requested by the AP.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.8953ef22cc64.Ifee9cab337a4369938545920ba5590559e91327a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: disallow band-switch during CSA
Johannes Berg [Sun, 29 Nov 2020 15:30:54 +0000 (17:30 +0200)]
mac80211: disallow band-switch during CSA

If the AP advertises a band switch during CSA, we will not have
the right information to continue working with it, since it will
likely (have to) change its capabilities and we don't track any
capability changes at all. Additionally, we store e.g. supported
rates per band, and that information would become invalid.

Since this is a fringe scenario, just disconnect explicitly.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.0e2327107c06.I461adb07704e056b054a4a7c29b80c95a9f56637@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agoieee80211: update reduced neighbor report TBTT info length
Avraham Stern [Sun, 29 Nov 2020 15:30:52 +0000 (17:30 +0200)]
ieee80211: update reduced neighbor report TBTT info length

A new field (20MHz PSD - 1 byte) was added to the RNR TBTT info field.
Adjust the expected TBTT info length accordingly.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.b503adccce6a.Ie684e1d3039c111bf2d521bf762aaec3f7a24d2e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agocfg80211: Save the regulatory domain when setting custom regulatory
Ilan Peer [Sun, 29 Nov 2020 15:30:51 +0000 (17:30 +0200)]
cfg80211: Save the regulatory domain when setting custom regulatory

When custom regulatory was set, only the channels setting was updated, but
the regulatory domain was not saved. Fix it by saving it.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.290fa5c5568a.Ic5732aa64de6ee97ae3578bd5779fc723ba489d1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agonl80211: always accept scan request with the duration set
Avraham Stern [Sun, 29 Nov 2020 15:30:50 +0000 (17:30 +0200)]
nl80211: always accept scan request with the duration set

Accept a scan request with the duration set even if the driver
does not support setting the scan dwell. The duration can be used
as a hint to the driver, but the driver may use its internal logic
for setting the scan dwell.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.9491a12f9226.Ia9c5b24fcefc5ce5592537507243391633a27e5f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agocfg80211: Update TSF and TSF BSSID for multi BSS
Ilan Peer [Sun, 29 Nov 2020 15:30:49 +0000 (17:30 +0200)]
cfg80211: Update TSF and TSF BSSID for multi BSS

When a new BSS entry is created based on multi BSS IE, the
TSF and the TSF BSSID were not updated. Fix it.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.8377d5063827.I6f2011b6017c2ad507c61a3f1ca03b7177a46e32@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agocfg80211: scan PSC channels in case of scan with wildcard SSID
Ayala Beker [Sun, 29 Nov 2020 15:30:48 +0000 (17:30 +0200)]
cfg80211: scan PSC channels in case of scan with wildcard SSID

In case of scan request with wildcard SSID, or in case of more
than one SSID in scan request, need to scan PSC channels even though
all the co-located APs found during the legacy bands scan indicated
that all the APs in their ESS are co-located, as we might find different
networks on the PSC channels.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.736415a9ca5d.If5b3578ae85e11a707a5da07e66ba85928ba702c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agomac80211: Skip entries with SAE H2E only membership selector
Ilan Peer [Sun, 29 Nov 2020 15:30:47 +0000 (17:30 +0200)]
mac80211: Skip entries with SAE H2E only membership selector

When parsing supported rates IE.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.8228e2be791e.I626c93241fef66bc71aa0cb9719aba1b11232cf1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 years agocfg80211: Parse SAE H2E only membership selector
Ilan Peer [Sun, 29 Nov 2020 15:30:46 +0000 (17:30 +0200)]
cfg80211: Parse SAE H2E only membership selector

This extends the support for drivers that rebuild IEs in the
FW (same as with HT/VHT/HE).

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.4012647275f3.I1a93ae71c57ef0b6f58f99d47fce919d19d65ff0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>