platform/kernel/linux-starfive.git
2 years agoscsi: mpt3sas: Stop fw fault watchdog work item during system shutdown
David Jeffery [Fri, 22 Jul 2022 14:24:48 +0000 (10:24 -0400)]
scsi: mpt3sas: Stop fw fault watchdog work item during system shutdown

During system shutdown or reboot, mpt3sas will reset the firmware back to
ready state. However, the driver leaves running a watchdog work item
intended to keep the firmware in operational state. This causes a second,
unneeded reset on shutdown and moves the firmware back to operational
instead of in ready state as intended. And if the mpt3sas_fwfault_debug
module parameter is set, this extra reset also panics the system.

mpt3sas's scsih_shutdown needs to stop the watchdog before resetting the
firmware back to ready state.

Link: https://lore.kernel.org/r/20220722142448.6289-1-djeffery@redhat.com
Fixes: fae21608c31c ("scsi: mpt3sas: Transition IOC to Ready state during shutdown")
Tested-by: Laurence Oberman <loberman@redhat.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: David Jeffery <djeffery@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2 years agomailmap: update Gao Xiang's email addresses
Gao Xiang [Tue, 19 Jul 2022 15:42:46 +0000 (23:42 +0800)]
mailmap: update Gao Xiang's email addresses

I've been in Alibaba Cloud for more than one year, mainly to address
cloud-native challenges (such as high-performance container images) for
open source communities.

Update my email addresses on behalf of my current employer (Alibaba Cloud)
to support all my (team) work in this area.  Also add an outdated
@redhat.com address of me.

Link: https://lkml.kernel.org/r/20220719154246.62970-1-xiang@kernel.org
Signed-off-by: Gao Xiang <xiang@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2 years agouserfaultfd: provide properly masked address for huge-pages
Nadav Amit [Mon, 11 Jul 2022 16:59:06 +0000 (09:59 -0700)]
userfaultfd: provide properly masked address for huge-pages

Commit 824ddc601adc ("userfaultfd: provide unmasked address on
page-fault") was introduced to fix an old bug, in which the offset in the
address of a page-fault was masked.  Concerns were raised - although were
never backed by actual code - that some userspace code might break because
the bug has been around for quite a while.  To address these concerns a
new flag was introduced, and only when this flag is set by the user,
userfaultfd provides the exact address of the page-fault.

The commit however had a bug, and if the flag is unset, the offset was
always masked based on a base-page granularity.  Yet, for huge-pages, the
behavior prior to the commit was that the address is masked to the
huge-page granulrity.

While there are no reports on real breakage, fix this issue.  If the flag
is unset, use the address with the masking that was done before.

Link: https://lkml.kernel.org/r/20220711165906.2682-1-namit@vmware.com
Fixes: 824ddc601adc ("userfaultfd: provide unmasked address on page-fault")
Signed-off-by: Nadav Amit <namit@vmware.com>
Reported-by: James Houghton <jthoughton@google.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: James Houghton <jthoughton@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2 years agoBluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put
Luiz Augusto von Dentz [Thu, 21 Jul 2022 16:10:50 +0000 (09:10 -0700)]
Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put

This fixes the following trace which is caused by hci_rx_work starting up
*after* the final channel reference has been put() during sock_close() but
*before* the references to the channel have been destroyed, so instead
the code now rely on kref_get_unless_zero/l2cap_chan_hold_unless_zero to
prevent referencing a channel that is about to be destroyed.

  refcount_t: increment on 0; use-after-free.
  BUG: KASAN: use-after-free in refcount_dec_and_test+0x20/0xd0
  Read of size 4 at addr ffffffc114f5bf18 by task kworker/u17:14/705

  CPU: 4 PID: 705 Comm: kworker/u17:14 Tainted: G S      W
  4.14.234-00003-g1fb6d0bd49a4-dirty #28
  Hardware name: Qualcomm Technologies, Inc. SM8150 V2 PM8150
  Google Inc. MSM sm8150 Flame DVT (DT)
  Workqueue: hci0 hci_rx_work
  Call trace:
   dump_backtrace+0x0/0x378
   show_stack+0x20/0x2c
   dump_stack+0x124/0x148
   print_address_description+0x80/0x2e8
   __kasan_report+0x168/0x188
   kasan_report+0x10/0x18
   __asan_load4+0x84/0x8c
   refcount_dec_and_test+0x20/0xd0
   l2cap_chan_put+0x48/0x12c
   l2cap_recv_frame+0x4770/0x6550
   l2cap_recv_acldata+0x44c/0x7a4
   hci_acldata_packet+0x100/0x188
   hci_rx_work+0x178/0x23c
   process_one_work+0x35c/0x95c
   worker_thread+0x4cc/0x960
   kthread+0x1a8/0x1c4
   ret_from_fork+0x10/0x18

Cc: stable@kernel.org
Reported-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2 years agoBluetooth: Always set event mask on suspend
Abhishek Pandit-Subedi [Mon, 25 Jul 2022 22:34:21 +0000 (15:34 -0700)]
Bluetooth: Always set event mask on suspend

When suspending, always set the event mask once disconnects are
successful. Otherwise, if wakeup is disallowed, the event mask is not
set before suspend continues and can result in an early wakeup.

Fixes: 182ee45da083 ("Bluetooth: hci_sync: Rework hci_suspend_notifier")
Cc: stable@vger.kernel.org
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2 years agoBluetooth: mgmt: Fix double free on error path
Dan Carpenter [Tue, 26 Jul 2022 15:13:44 +0000 (18:13 +0300)]
Bluetooth: mgmt: Fix double free on error path

Don't call mgmt_pending_remove() twice (double free).

Fixes: 6b88eff43704 ("Bluetooth: hci_sync: Refactor remove Adv Monitor")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2 years agowifi: mac80211: do not abuse fq.lock in ieee80211_do_stop()
Tetsuo Handa [Sun, 17 Jul 2022 12:21:52 +0000 (21:21 +0900)]
wifi: mac80211: do not abuse fq.lock in ieee80211_do_stop()

lockdep complains use of uninitialized spinlock at ieee80211_do_stop() [1],
for commit f856373e2f31ffd3 ("wifi: mac80211: do not wake queues on a vif
that is being stopped") guards clear_bit() using fq.lock even before
fq_init() from ieee80211_txq_setup_flows() initializes this spinlock.

According to discussion [2], Toke was not happy with expanding usage of
fq.lock. Since __ieee80211_wake_txqs() is called under RCU read lock, we
can instead use synchronize_rcu() for flushing ieee80211_wake_txqs().

Link: https://syzkaller.appspot.com/bug?extid=eceab52db7c4b961e9d6
Link: https://lkml.kernel.org/r/874k0zowh2.fsf@toke.dk
Reported-by: syzbot <syzbot+eceab52db7c4b961e9d6@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: f856373e2f31ffd3 ("wifi: mac80211: do not wake queues on a vif that is being stopped")
Tested-by: syzbot <syzbot+eceab52db7c4b961e9d6@syzkaller.appspotmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/9cc9b81d-75a3-3925-b612-9d0ad3cab82b@I-love.SAKURA.ne.jp
[ pick up commit 3598cb6e1862 ("wifi: mac80211: do not abuse fq.lock in ieee80211_do_stop()") from -next]
Link: https://lore.kernel.org/all/87o7xcq6qt.fsf@kernel.org/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoice: do not setup vlan for loopback VSI
Maciej Fijalkowski [Thu, 7 Jul 2022 10:20:43 +0000 (12:20 +0200)]
ice: do not setup vlan for loopback VSI

Currently loopback test is failiing due to the error returned from
ice_vsi_vlan_setup(). Skip calling it when preparing loopback VSI.

Fixes: 0e674aeb0b77 ("ice: Add handler for ethtool selftest")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agoice: check (DD | EOF) bits on Rx descriptor rather than (EOP | RS)
Maciej Fijalkowski [Thu, 7 Jul 2022 10:20:42 +0000 (12:20 +0200)]
ice: check (DD | EOF) bits on Rx descriptor rather than (EOP | RS)

Tx side sets EOP and RS bits on descriptors to indicate that a
particular descriptor is the last one and needs to generate an irq when
it was sent. These bits should not be checked on completion path
regardless whether it's the Tx or the Rx. DD bit serves this purpose and
it indicates that a particular descriptor is either for Rx or was
successfully Txed. EOF is also set as loopback test does not xmit
fragmented frames.

Look at (DD | EOF) bits setting in ice_lbtest_receive_frames() instead
of EOP and RS pair.

Fixes: 0e674aeb0b77 ("ice: Add handler for ethtool selftest")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agoice: Fix VSIs unable to share unicast MAC
Anirudh Venkataramanan [Thu, 21 Jul 2022 08:03:09 +0000 (10:03 +0200)]
ice: Fix VSIs unable to share unicast MAC

The driver currently does not allow two VSIs in the same PF domain
to have the same unicast MAC address. This is incorrect in the sense
that a policy decision is being made in the driver when it must be
left to the user. This approach was causing issues when rebooting
the system with VFs spawned not being able to change their MAC addresses.
Such errors were present in dmesg:

[ 7921.068237] ice 0000:b6:00.2 ens2f2: Unicast MAC 6a:0d:e4:70:ca:d1 already
exists on this PF. Preventing setting VF 7 unicast MAC address to 6a:0d:e4:70:ca:d1

Fix that by removing this restriction. Doing this also allows
us to remove some additional code that's checking if a unicast MAC
filter already exists.

Fixes: 47ebc7b02485 ("ice: Check if unicast MAC exists before setting VF MAC")
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Marek Szlosek <marek.szlosek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agoice: Fix tunnel checksum offload with fragmented traffic
Przemyslaw Patynowski [Mon, 18 Jul 2022 11:34:27 +0000 (13:34 +0200)]
ice: Fix tunnel checksum offload with fragmented traffic

Fix checksum offload on VXLAN tunnels.
In case, when mpls protocol is not used, set l4 header to transport
header of skb. This fixes case, when user tries to offload checksums
of VXLAN tunneled traffic.

Steps for reproduction (requires link partner with tunnels):
ip l s enp130s0f0 up
ip a f enp130s0f0
ip a a 10.10.110.2/24 dev enp130s0f0
ip l s enp130s0f0 mtu 1600
ip link add vxlan12_sut type vxlan id 12 group 238.168.100.100 dev enp130s0f0 dstport 4789
ip l s vxlan12_sut up
ip a a 20.10.110.2/24 dev vxlan12_sut
iperf3 -c 20.10.110.1 #should connect

Offload params: td_offset, cd_tunnel_params were
corrupted, due to l4 header pointing wrong address. NIC would then drop
those packets internally, due to incorrect TX descriptor data,
which increased GLV_TEPC register.

Fixes: 69e66c04c672 ("ice: Add mpls+tso support")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agoice: Fix max VLANs available for VF
Przemyslaw Patynowski [Mon, 4 Jul 2022 13:46:12 +0000 (15:46 +0200)]
ice: Fix max VLANs available for VF

Legacy VLAN implementation allows for untrusted VF to have 8 VLAN
filters, not counting VLAN 0 filters. Current VLAN_V2 implementation
lowers available filters for VF, by counting in VLAN 0 filter for both
TPIDs.
Fix this by counting only non zero VLAN filters.
Without this patch, untrusted VF would not be able to access 8 VLAN
filters.

Fixes: cc71de8fa133 ("ice: Add support for VIRTCHNL_VF_OFFLOAD_VLAN_V2")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Marek Szlosek <marek.szlosek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agonetfilter: nft_queue: only allow supported familes and hooks
Florian Westphal [Tue, 26 Jul 2022 17:49:00 +0000 (19:49 +0200)]
netfilter: nft_queue: only allow supported familes and hooks

Trying to use 'queue' statement in ingress (for example)
triggers a splat on reinject:

WARNING: CPU: 3 PID: 1345 at net/netfilter/nf_queue.c:291

... because nf_reinject cannot find the ruleset head.

The netdev family doesn't support async resume at the moment anyway,
so disallow loading such rulesets with a more appropriate
error message.

v2: add 'validate' callback and also check hook points, v1 did
allow ingress use in 'table inet', but that doesn't work either. (Pablo)

Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
2 years agonetfilter: nf_tables: add rescheduling points during loop detection walks
Florian Westphal [Tue, 26 Jul 2022 10:44:35 +0000 (12:44 +0200)]
netfilter: nf_tables: add rescheduling points during loop detection walks

Add explicit rescheduling points during ruleset walk.

Switching to a faster algorithm is possible but this is a much
smaller change, suitable for nf tree.

Link: https://bugzilla.netfilter.org/show_bug.cgi?id=1460
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
2 years agonetfilter: nf_queue: do not allow packet truncation below transport header offset
Florian Westphal [Tue, 26 Jul 2022 10:42:06 +0000 (12:42 +0200)]
netfilter: nf_queue: do not allow packet truncation below transport header offset

Domingo Dirutigliano and Nicola Guerrera report kernel panic when
sending nf_queue verdict with 1-byte nfta_payload attribute.

The IP/IPv6 stack pulls the IP(v6) header from the packet after the
input hook.

If user truncates the packet below the header size, this skb_pull() will
result in a malformed skb (skb->len < 0).

Fixes: 7af4cc3fa158 ("[NETFILTER]: Add "nfnetlink_queue" netfilter queue handler over nfnetlink")
Reported-by: Domingo Dirutigliano <pwnzer0tt1@proton.me>
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
2 years agoMerge tag 's390-5.19-7' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Tue, 26 Jul 2022 17:03:53 +0000 (10:03 -0700)]
Merge tag 's390-5.19-7' of git://git./linux/kernel/git/s390/linux

Pull s390 fix from Alexander GordeevL

 - Prevent relatively slow PRNO TRNG random number operation from being
   called from interrupt context. That could for example cause some
   network loads to timeout.

* tag 's390-5.19-7' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/archrandom: prevent CPACF trng invocations in interrupt context

2 years agomm: fix NULL pointer dereference in wp_page_reuse()
Qi Zheng [Tue, 26 Jul 2022 06:24:36 +0000 (14:24 +0800)]
mm: fix NULL pointer dereference in wp_page_reuse()

The vmf->page can be NULL when the wp_page_reuse() is invoked by
wp_pfn_shared(), it will cause the following panic:

  BUG: kernel NULL pointer dereference, address: 000000000000008
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: 0000 [#1] PREEMPT SMP PTI
  CPU: 18 PID: 923 Comm: Xorg Not tainted 5.19.0-rc8.bm.1-amd64 #263
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g14
  RIP: 0010:_compound_head+0x0/0x40
  [...]
  Call Trace:
    wp_page_reuse+0x1c/0xa0
    do_wp_page+0x1a5/0x3f0
    __handle_mm_fault+0x8cf/0xd20
    handle_mm_fault+0xd5/0x2a0
    do_user_addr_fault+0x1d0/0x680
    exc_page_fault+0x78/0x170
    asm_exc_page_fault+0x22/0x30

To fix it, this patch performs a NULL pointer check before dereferencing
the vmf->page.

Fixes: 6c287605fd56 ("mm: remember exclusively mapped anonymous pages with PG_anon_exclusive")
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agodrm/simpledrm: Fix return type of simpledrm_simple_display_pipe_mode_valid()
Nathan Chancellor [Mon, 25 Jul 2022 23:36:29 +0000 (16:36 -0700)]
drm/simpledrm: Fix return type of simpledrm_simple_display_pipe_mode_valid()

When booting a kernel compiled with clang's CFI protection
(CONFIG_CFI_CLANG), there is a CFI failure in
drm_simple_kms_crtc_mode_valid() when trying to call
simpledrm_simple_display_pipe_mode_valid() through ->mode_valid():

[    0.322802] CFI failure (target: simpledrm_simple_display_pipe_mode_valid+0x0/0x8):
...
[    0.324928] Call trace:
[    0.324969]  __ubsan_handle_cfi_check_fail+0x58/0x60
[    0.325053]  __cfi_check_fail+0x3c/0x44
[    0.325120]  __cfi_slowpath_diag+0x178/0x200
[    0.325192]  drm_simple_kms_crtc_mode_valid+0x58/0x80
[    0.325279]  __drm_helper_update_and_validate+0x31c/0x464
...

The ->mode_valid() member in 'struct drm_simple_display_pipe_funcs'
expects a return type of 'enum drm_mode_status', not 'int'. Correct it
to fix the CFI failure.

Cc: stable@vger.kernel.org
Fixes: 11e8f5fd223b ("drm: Add simpledrm driver")
Link: https://github.com/ClangBuiltLinux/linux/issues/1647
Reported-by: Tomasz Paweł Gajc <tpgxyz@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220725233629.223223-1-nathan@kernel.org
2 years agobridge: Do not send empty IFLA_AF_SPEC attribute
Benjamin Poirier [Mon, 25 Jul 2022 00:12:36 +0000 (09:12 +0900)]
bridge: Do not send empty IFLA_AF_SPEC attribute

After commit b6c02ef54913 ("bridge: Netlink interface fix."),
br_fill_ifinfo() started to send an empty IFLA_AF_SPEC attribute when a
bridge vlan dump is requested but an interface does not have any vlans
configured.

iproute2 ignores such an empty attribute since commit b262a9becbcb
("bridge: Fix output with empty vlan lists") but older iproute2 versions as
well as other utilities have their output changed by the cited kernel
commit, resulting in failed test cases. Regardless, emitting an empty
attribute is pointless and inefficient.

Avoid this change by canceling the attribute if no AF_SPEC data was added.

Fixes: b6c02ef54913 ("bridge: Netlink interface fix.")
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20220725001236.95062-1-bpoirier@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2 years agofsnotify: Fix comment typo
Xin Gao [Fri, 22 Jul 2022 19:46:39 +0000 (03:46 +0800)]
fsnotify: Fix comment typo

The double `if' is duplicated in line 104, remove one.

Signed-off-by: Xin Gao <gaoxin@cdjrlc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220722194639.18545-1-gaoxin@cdjrlc.com
2 years agoext2: Add more validity checks for inode counts
Jan Kara [Tue, 26 Jul 2022 11:13:50 +0000 (13:13 +0200)]
ext2: Add more validity checks for inode counts

Add checks verifying number of inodes stored in the superblock matches
the number computed from number of inodes per group. Also verify we have
at least one block worth of inodes per group. This prevents crashes on
corrupted filesystems.

Reported-by: syzbot+d273f7d7f58afd93be48@syzkaller.appspotmail.com
Signed-off-by: Jan Kara <jack@suse.cz>
2 years agoMerge branch 'octeontx2-minor-tc-fixes'
Paolo Abeni [Tue, 26 Jul 2022 11:05:46 +0000 (13:05 +0200)]
Merge branch 'octeontx2-minor-tc-fixes'

Subbaraya Sundeep says:

====================
Octeontx2 minor tc fixes

This patch set fixes two problems found in tc code
wrt to ratelimiting and when installing UDP/TCP filters.

Patch 1: CN10K has different register format compared to
CN9xx hence fixes that.
Patch 2: Check flow mask also before installing a src/dst
port filter, otherwise installing for one port installs for other one too.
====================

Link: https://lore.kernel.org/r/1658650874-16459-1-git-send-email-sbhatta@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2 years agoocteontx2-pf: Fix UDP/TCP src and dst port tc filters
Subbaraya Sundeep [Sun, 24 Jul 2022 08:21:14 +0000 (13:51 +0530)]
octeontx2-pf: Fix UDP/TCP src and dst port tc filters

Check the mask for non-zero value before installing tc filters
for L4 source and destination ports. Otherwise installing a
filter for source port installs destination port too and
vice-versa.

Fixes: 1d4d9e42c240 ("octeontx2-pf: Add tc flower hardware offload on ingress traffic")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2 years agoocteontx2-pf: cn10k: Fix egress ratelimit configuration
Sunil Goutham [Sun, 24 Jul 2022 08:21:13 +0000 (13:51 +0530)]
octeontx2-pf: cn10k: Fix egress ratelimit configuration

NIX_AF_TLXX_PIR/CIR register format has changed from OcteonTx2
to CN10K. CN10K supports larger burst size. Fix burst exponent
and burst mantissa configuration for CN10K.

Also fixed 'maxrate' from u32 to u64 since 'police.rate_bytes_ps'
passed by stack is also u64.

Fixes: e638a83f167e ("octeontx2-pf: TC_MATCHALL egress ratelimiting offload")
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2 years agofs/reiserfs/inode: remove dead code in _get_block_create_0()
Zeng Jingxiang [Wed, 20 Jul 2022 08:30:29 +0000 (16:30 +0800)]
fs/reiserfs/inode: remove dead code in _get_block_create_0()

Since commit 27b3a5c51b50 ("kill-the-bkl/reiserfs: drop the fs race
watchdog from _get_block_create_0()"), which removed a label that may
have the pointer 'p' touched in its control flow, related if statements
now eval to constant value now. Just remove them.

Assigning value NULL to p here
293     char *p = NULL;

In the following conditional expression, the value of p is always NULL,
As a result, the kunmap() cannot be executed.
308 if (p)
309 kunmap(bh_result->b_page);

355 if (p)
356 kunmap(bh_result->b_page);

366 if (p)
367 kunmap(bh_result->b_page);

Also, the kmap() cannot be executed.
399 if (!p)
400 p = (char *)kmap(bh_result->b_page);

[JK: Removed unnecessary initialization of 'p' to NULL]

Signed-off-by: Zeng Jingxiang <linuszeng@tencent.com>
Signed-off-by: Kairui Song <kasong@tencent.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220720083029.1065578-1-zengjx95@gmail.com
2 years agosctp: fix sleep in atomic context bug in timer handlers
Duoming Zhou [Sat, 23 Jul 2022 01:58:09 +0000 (09:58 +0800)]
sctp: fix sleep in atomic context bug in timer handlers

There are sleep in atomic context bugs in timer handlers of sctp
such as sctp_generate_t3_rtx_event(), sctp_generate_probe_event(),
sctp_generate_t1_init_event(), sctp_generate_timeout_event(),
sctp_generate_t3_rtx_event() and so on.

The root cause is sctp_sched_prio_init_sid() with GFP_KERNEL parameter
that may sleep could be called by different timer handlers which is in
interrupt context.

One of the call paths that could trigger bug is shown below:

      (interrupt context)
sctp_generate_probe_event
  sctp_do_sm
    sctp_side_effects
      sctp_cmd_interpreter
        sctp_outq_teardown
          sctp_outq_init
            sctp_sched_set_sched
              n->init_sid(..,GFP_KERNEL)
                sctp_sched_prio_init_sid //may sleep

This patch changes gfp_t parameter of init_sid in sctp_sched_set_sched()
from GFP_KERNEL to GFP_ATOMIC in order to prevent sleep in atomic
context bugs.

Fixes: 5bbbbe32a431 ("sctp: introduce stream scheduler foundations")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Link: https://lore.kernel.org/r/20220723015809.11553-1-duoming@zju.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agonet: dsa: fix reference counting for LAG FDBs
Vladimir Oltean [Sat, 23 Jul 2022 01:24:11 +0000 (04:24 +0300)]
net: dsa: fix reference counting for LAG FDBs

Due to an invalid conflict resolution on my side while working on 2
different series (LAG FDBs and FDB isolation), dsa_switch_do_lag_fdb_add()
does not store the database associated with a dsa_mac_addr structure.

So after adding an FDB entry associated with a LAG, dsa_mac_addr_find()
fails to find it while deleting it, because &a->db is zeroized memory
for all stored FDB entries of lag->fdbs, and dsa_switch_do_lag_fdb_del()
returns -ENOENT rather than deleting the entry.

Fixes: c26933639b54 ("net: dsa: request drivers to perform FDB isolation")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220723012411.1125066-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoi40e: Fix interface init with MSI interrupts (no MSI-X)
Michal Maloszewski [Fri, 22 Jul 2022 17:54:01 +0000 (10:54 -0700)]
i40e: Fix interface init with MSI interrupts (no MSI-X)

Fix the inability to bring an interface up on a setup with
only MSI interrupts enabled (no MSI-X).
Solution is to add a default number of QPs = 1. This is enough,
since without MSI-X support driver enables only a basic feature set.

Fixes: bc6d33c8d93f ("i40e: Fix the number of queues available to be mapped for use")
Signed-off-by: Dawid Lukwinski <dawid.lukwinski@intel.com>
Signed-off-by: Michal Maloszewski <michal.maloszewski@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220722175401.112572-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agodrm/amdgpu: Re-enable DCN for 64-bit powerpc
Michael Ellerman [Mon, 25 Jul 2022 04:37:29 +0000 (14:37 +1000)]
drm/amdgpu: Re-enable DCN for 64-bit powerpc

Commit d11219ad53dc ("amdgpu: disable powerpc support for the newer
display engine") disabled the DCN driver for all of powerpc due to
unresolved build failures with some compilers.

Further digging shows that the build failures only occur with compilers
that default to 64-bit long double.

Both the ppc64 and ppc64le ABIs define long double to be 128-bits, but
there are compilers in the wild that default to 64-bits. The compilers
provided by the major distros (Fedora, Ubuntu) default to 128-bits and
are not affected by the build failure.

There is a compiler flag to force 128-bit long double, which may be the
correct long term fix, but as an interim fix only allow building the DCN
driver if long double is 128-bits by default.

The bisection in commit d11219ad53dc must have gone off the rails at
some point, the build failure occurs all the way back to the original
commit that enabled DCN support on powerpc, at least with some
toolchains.

Depends-on: d11219ad53dc ("amdgpu: disable powerpc support for the newer display engine")
Fixes: 16a9dea110a6 ("amdgpu: Enable initial DCN support on POWER")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Dan Horák <dan@danny.cz>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2100
Link: https://lore.kernel.org/r/20220725123918.1903255-1-mpe@ellerman.id.au
2 years agointel_idle: Fix false positive RCU splats due to incorrect hardirqs state
Waiman Long [Sat, 23 Jul 2022 19:59:32 +0000 (15:59 -0400)]
intel_idle: Fix false positive RCU splats due to incorrect hardirqs state

Commit 32d4fd5751ea ("cpuidle,intel_idle: Fix CPUIDLE_FLAG_IRQ_ENABLE")
uses raw_local_irq_enable/local_irq_disable() around call to
__intel_idle() in intel_idle_irq().

With interrupt enabled, timer tick interrupt can happen and a
subsequently call to __do_softirq() may change the lockdep hardirqs state
of a debug kernel back to 'on'. This will result in a mismatch between
the cpu hardirqs state (off) and the lockdep hardirqs state (on) causing
a number of false positive "WARNING: suspicious RCU usage" splats.

Fix that by using local_irq_disable() to disable interrupt in
intel_idle_irq().

Fixes: 32d4fd5751ea ("cpuidle,intel_idle: Fix CPUIDLE_FLAG_IRQ_ENABLE")
Signed-off-by: Waiman Long <longman@redhat.com>
Cc: 5.16+ <stable@vger.kernel.org> # 5.16+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2 years agodrm/i915/reset: Add additional steps for Wa_22011802037 for execlist backend
Umesh Nerlige Ramappa [Tue, 21 Jun 2022 19:21:05 +0000 (12:21 -0700)]
drm/i915/reset: Add additional steps for Wa_22011802037 for execlist backend

For execlists backend, current implementation of Wa_22011802037 is to
stop the CS before doing a reset of the engine. This WA was further
extended to wait for any pending MI FORCE WAKEUPs before issuing a
reset. Add the extended steps in the execlist path of reset.

In addition, extend the WA to gen11.

v2: (Tvrtko)
- Clarify comments, commit message, fix typos
- Use IS_GRAPHICS_VER for gen 11/12 checks

v3: (Daneile)
- Drop changes to intel_ring_submission since WA does not apply to it
- Log an error if MSG IDLE is not defined for an engine

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Fixes: f6aa0d713c88 ("drm/i915: Add Wa_22011802037 force cs halt")
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220621192105.2100585-1-umesh.nerlige.ramappa@intel.com
(cherry picked from commit 0667429ce68e0b08f9f1fec8fd0b1f57228f605e)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2 years agoMerge branch 'net-sysctl-races-part-6'
David S. Miller [Mon, 25 Jul 2022 11:42:10 +0000 (12:42 +0100)]
Merge branch 'net-sysctl-races-part-6'

Kuniyuki Iwashima says:

====================
sysctl: Fix data-races around ipv4_net_table (Round 6, Final).

This series fixes data-races around 11 knobs after tcp_pacing_ss_ratio
ipv4_net_table, and this is the final round for ipv4_net_table.

While at it, other data-races around these related knobs are fixed.

  - decnet_mem
  - decnet_rmem
  - tipc_rmem

There are still 58 tables possibly missing some fixes under net/.

  $ grep -rnE "struct ctl_table.*?\[\] =" net/ | wc -l
  60
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoipv4: Fix data-races around sysctl_fib_notify_on_flag_change.
Kuniyuki Iwashima [Fri, 22 Jul 2022 18:22:05 +0000 (11:22 -0700)]
ipv4: Fix data-races around sysctl_fib_notify_on_flag_change.

While reading sysctl_fib_notify_on_flag_change, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its readers.

Fixes: 680aea08e78c ("net: ipv4: Emit notification when fib hardware flags are changed")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agotcp: Fix data-races around sysctl_tcp_reflect_tos.
Kuniyuki Iwashima [Fri, 22 Jul 2022 18:22:04 +0000 (11:22 -0700)]
tcp: Fix data-races around sysctl_tcp_reflect_tos.

While reading sysctl_tcp_reflect_tos, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.

Fixes: ac8f1710c12b ("tcp: reflect tos value received in SYN to the socket")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Wei Wang <weiwan@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agotcp: Fix a data-race around sysctl_tcp_comp_sack_nr.
Kuniyuki Iwashima [Fri, 22 Jul 2022 18:22:03 +0000 (11:22 -0700)]
tcp: Fix a data-race around sysctl_tcp_comp_sack_nr.

While reading sysctl_tcp_comp_sack_nr, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 9c21d2fc41c0 ("tcp: add tcp_comp_sack_nr sysctl")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agotcp: Fix a data-race around sysctl_tcp_comp_sack_slack_ns.
Kuniyuki Iwashima [Fri, 22 Jul 2022 18:22:02 +0000 (11:22 -0700)]
tcp: Fix a data-race around sysctl_tcp_comp_sack_slack_ns.

While reading sysctl_tcp_comp_sack_slack_ns, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its reader.

Fixes: a70437cc09a1 ("tcp: add hrtimer slack to sack compression")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agotcp: Fix a data-race around sysctl_tcp_comp_sack_delay_ns.
Kuniyuki Iwashima [Fri, 22 Jul 2022 18:22:01 +0000 (11:22 -0700)]
tcp: Fix a data-race around sysctl_tcp_comp_sack_delay_ns.

While reading sysctl_tcp_comp_sack_delay_ns, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its reader.

Fixes: 6d82aa242092 ("tcp: add tcp_comp_sack_delay_ns sysctl")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: Fix data-races around sysctl_[rw]mem(_offset)?.
Kuniyuki Iwashima [Fri, 22 Jul 2022 18:22:00 +0000 (11:22 -0700)]
net: Fix data-races around sysctl_[rw]mem(_offset)?.

While reading these sysctl variables, they can be changed concurrently.
Thus, we need to add READ_ONCE() to their readers.

  - .sysctl_rmem
  - .sysctl_rwmem
  - .sysctl_rmem_offset
  - .sysctl_wmem_offset
  - sysctl_tcp_rmem[1, 2]
  - sysctl_tcp_wmem[1, 2]
  - sysctl_decnet_rmem[1]
  - sysctl_decnet_wmem[1]
  - sysctl_tipc_rmem[1]

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agotcp: Fix data-races around sk_pacing_rate.
Kuniyuki Iwashima [Fri, 22 Jul 2022 18:21:59 +0000 (11:21 -0700)]
tcp: Fix data-races around sk_pacing_rate.

While reading sysctl_tcp_pacing_(ss|ca)_ratio, they can be changed
concurrently.  Thus, we need to add READ_ONCE() to their readers.

Fixes: 43e122b014c9 ("tcp: refine pacing rate determination")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: mld: fix reference count leak in mld_{query | report}_work()
Taehee Yoo [Fri, 22 Jul 2022 17:06:35 +0000 (17:06 +0000)]
net: mld: fix reference count leak in mld_{query | report}_work()

mld_{query | report}_work() processes queued events.
If there are too many events in the queue, it re-queue a work.
And then, it returns without in6_dev_put().
But if queuing is failed, it should call in6_dev_put(), but it doesn't.
So, a reference count leak would occur.

THREAD0 THREAD1
mld_report_work()
spin_lock_bh()
if (!mod_delayed_work())
in6_dev_hold();
spin_unlock_bh()
spin_lock_bh()
schedule_delayed_work()
spin_unlock_bh()

Script to reproduce(by Hangbin Liu):
   ip netns add ns1
   ip netns add ns2
   ip netns exec ns1 sysctl -w net.ipv6.conf.all.force_mld_version=1
   ip netns exec ns2 sysctl -w net.ipv6.conf.all.force_mld_version=1

   ip -n ns1 link add veth0 type veth peer name veth0 netns ns2
   ip -n ns1 link set veth0 up
   ip -n ns2 link set veth0 up

   for i in `seq 50`; do
           for j in `seq 100`; do
                   ip -n ns1 addr add 2021:${i}::${j}/64 dev veth0
                   ip -n ns2 addr add 2022:${i}::${j}/64 dev veth0
           done
   done
   modprobe -r veth
   ip -a netns del

splat looks like:
 unregister_netdevice: waiting for veth0 to become free. Usage count = 2
 leaked reference.
  ipv6_add_dev+0x324/0xec0
  addrconf_notify+0x481/0xd10
  raw_notifier_call_chain+0xe3/0x120
  call_netdevice_notifiers+0x106/0x160
  register_netdevice+0x114c/0x16b0
  veth_newlink+0x48b/0xa50 [veth]
  rtnl_newlink+0x11a2/0x1a40
  rtnetlink_rcv_msg+0x63f/0xc00
  netlink_rcv_skb+0x1df/0x3e0
  netlink_unicast+0x5de/0x850
  netlink_sendmsg+0x6c9/0xa90
  ____sys_sendmsg+0x76a/0x780
  __sys_sendmsg+0x27c/0x340
  do_syscall_64+0x43/0x90
  entry_SYSCALL_64_after_hwframe+0x63/0xcd

Tested-by: Hangbin Liu <liuhangbin@gmail.com>
Fixes: f185de28d9ae ("mld: add new workqueues for process mld events")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: macsec: fix potential resource leak in macsec_add_rxsa() and macsec_add_txsa()
Jianglei Nie [Fri, 22 Jul 2022 09:29:02 +0000 (17:29 +0800)]
net: macsec: fix potential resource leak in macsec_add_rxsa() and macsec_add_txsa()

init_rx_sa() allocates relevant resource for rx_sa->stats and rx_sa->
key.tfm with alloc_percpu() and macsec_alloc_tfm(). When some error
occurs after init_rx_sa() is called in macsec_add_rxsa(), the function
released rx_sa with kfree() without releasing rx_sa->stats and rx_sa->
key.tfm, which will lead to a resource leak.

We should call macsec_rxsa_put() instead of kfree() to decrease the ref
count of rx_sa and release the relevant resource if the refcount is 0.
The same bug exists in macsec_add_txsa() for tx_sa as well. This patch
fixes the above two bugs.

Fixes: 3cf3227a21d1 ("net: macsec: hardware offloading infrastructure")
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoMerge branch 'macsec-config-issues'
David S. Miller [Mon, 25 Jul 2022 10:49:25 +0000 (11:49 +0100)]
Merge branch 'macsec-config-issues'

Sabrina Dubroca says:

====================
macsec: fix config issues

The patch adding netlink support for XPN (commit 48ef50fa866a
("macsec: Netlink support of XPN cipher suites (IEEE 802.1AEbw)"))
introduced several issues, including a kernel panic reported at [1].

Reproducing those bugs with upstream iproute is limited, since iproute
doesn't currently support XPN. I'm also working on this.

[1] https://bugzilla.kernel.org/show_bug.cgi?id=208315
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agomacsec: always read MACSEC_SA_ATTR_PN as a u64
Sabrina Dubroca [Fri, 22 Jul 2022 09:16:30 +0000 (11:16 +0200)]
macsec: always read MACSEC_SA_ATTR_PN as a u64

Currently, MACSEC_SA_ATTR_PN is handled inconsistently, sometimes as a
u32, sometimes forced into a u64 without checking the actual length of
the attribute. Instead, we can use nla_get_u64 everywhere, which will
read up to 64 bits into a u64, capped by the actual length of the
attribute coming from userspace.

This fixes several issues:
 - the check in validate_add_rxsa doesn't work with 32-bit attributes
 - the checks in validate_add_txsa and validate_upd_sa incorrectly
   reject X << 32 (with X != 0)

Fixes: 48ef50fa866a ("macsec: Netlink support of XPN cipher suites (IEEE 802.1AEbw)")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agomacsec: limit replay window size with XPN
Sabrina Dubroca [Fri, 22 Jul 2022 09:16:29 +0000 (11:16 +0200)]
macsec: limit replay window size with XPN

IEEE 802.1AEbw-2013 (section 10.7.8) specifies that the maximum value
of the replay window is 2^30-1, to help with recovery of the upper
bits of the PN.

To avoid leaving the existing macsec device in an inconsistent state
if this test fails during changelink, reuse the cleanup mechanism
introduced for HW offload. This wasn't needed until now because
macsec_changelink_common could not fail during changelink, as
modifying the cipher suite was not allowed.

Finally, this must happen after handling IFLA_MACSEC_CIPHER_SUITE so
that secy->xpn is set.

Fixes: 48ef50fa866a ("macsec: Netlink support of XPN cipher suites (IEEE 802.1AEbw)")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agomacsec: fix error message in macsec_add_rxsa and _txsa
Sabrina Dubroca [Fri, 22 Jul 2022 09:16:28 +0000 (11:16 +0200)]
macsec: fix error message in macsec_add_rxsa and _txsa

The expected length is MACSEC_SALT_LEN, not MACSEC_SA_ATTR_SALT.

Fixes: 48ef50fa866a ("macsec: Netlink support of XPN cipher suites (IEEE 802.1AEbw)")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agomacsec: fix NULL deref in macsec_add_rxsa
Sabrina Dubroca [Fri, 22 Jul 2022 09:16:27 +0000 (11:16 +0200)]
macsec: fix NULL deref in macsec_add_rxsa

Commit 48ef50fa866a added a test on tb_sa[MACSEC_SA_ATTR_PN], but
nothing guarantees that it's not NULL at this point. The same code was
added to macsec_add_txsa, but there it's not a problem because
validate_add_txsa checks that the MACSEC_SA_ATTR_PN attribute is
present.

Note: it's not possible to reproduce with iproute, because iproute
doesn't allow creating an SA without specifying the PN.

Fixes: 48ef50fa866a ("macsec: Netlink support of XPN cipher suites (IEEE 802.1AEbw)")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=208315
Reported-by: Frantisek Sumsal <fsumsal@redhat.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoarm64: Delay initialisation of cpuinfo_arm64::reg_{zcr,smcr}
Marc Zyngier [Wed, 20 Jul 2022 10:52:19 +0000 (11:52 +0100)]
arm64: Delay initialisation of cpuinfo_arm64::reg_{zcr,smcr}

Even if we are now able to tell the kernel to avoid exposing SVE/SME
from the command line, we still have a couple of places where we
unconditionally access the ZCR_EL1 (resp. SMCR_EL1) registers.

On systems with broken firmwares, this results in a crash even if
arm64.nosve (resp. arm64.nosme) was passed on the command-line.

To avoid this, only update cpuinfo_arm64::reg_{zcr,smcr} once
we have computed the sanitised version for the corresponding
feature registers (ID_AA64PFR0 for SVE, and ID_AA64PFR1 for
SME). This results in some minor refactoring.

Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Peter Collingbourne <pcc@google.com>
Tested-by: Peter Collingbourne <pcc@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220720105219.1755096-1-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2 years agoMerge branch 'for-next/boot' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:59:15 +0000 (10:59 +0100)]
Merge branch 'for-next/boot' into for-next/core

* for-next/boot: (34 commits)
  arm64: fix KASAN_INLINE
  arm64: Add an override for ID_AA64SMFR0_EL1.FA64
  arm64: Add the arm64.nosve command line option
  arm64: Add the arm64.nosme command line option
  arm64: Expose a __check_override primitive for oddball features
  arm64: Allow the idreg override to deal with variable field width
  arm64: Factor out checking of a feature against the override into a macro
  arm64: Allow sticky E2H when entering EL1
  arm64: Save state of HCR_EL2.E2H before switch to EL1
  arm64: Rename the VHE switch to "finalise_el2"
  arm64: mm: fix booting with 52-bit address space
  arm64: head: remove __PHYS_OFFSET
  arm64: lds: use PROVIDE instead of conditional definitions
  arm64: setup: drop early FDT pointer helpers
  arm64: head: avoid relocating the kernel twice for KASLR
  arm64: kaslr: defer initialization to initcall where permitted
  arm64: head: record CPU boot mode after enabling the MMU
  arm64: head: populate kernel page tables with MMU and caches on
  arm64: head: factor out TTBR1 assignment into a macro
  arm64: idreg-override: use early FDT mapping in ID map
  ...

2 years agoMerge branch 'for-next/cpufeature' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:58:10 +0000 (10:58 +0100)]
Merge branch 'for-next/cpufeature' into for-next/core

* for-next/cpufeature:
  arm64/hwcap: Support FEAT_EBF16
  arm64/cpufeature: Store elf_hwcaps as a bitmap rather than unsigned long
  arm64/hwcap: Document allocation of upper bits of AT_HWCAP
  arm64: trap implementation defined functionality in userspace

2 years agoMerge branch 'for-next/vdso' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:57:44 +0000 (10:57 +0100)]
Merge branch 'for-next/vdso' into for-next/core

* for-next/vdso:
  arm64: vdso32: Add DWARF_DEBUG
  arm64: vdso32: Shuffle .ARM.exidx section above ELF_DETAILS
  arm64: compat: Move sigreturn32.S to .rodata section
  arm64: vdso*: place got/plt sections in .rodata
  arm64: vdso32: add ARM.exidx* sections
  arm64: compat: Move kuser32.S to .rodata section
  arm64: vdso32: enable orphan handling for VDSO
  arm64: vdso32: put ELF related sections in the linker script
  arm64: vdso: enable orphan handling for VDSO
  arm64: vdso: put ELF related sections in the linker script

2 years agoMerge branch 'for-next/sysregs' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:57:37 +0000 (10:57 +0100)]
Merge branch 'for-next/sysregs' into for-next/core

* for-next/sysregs: (28 commits)
  arm64/sysreg: Convert ID_AA64ZFR0_EL1 to automatic generation
  arm64/sysreg: Convert ID_AA64SMFR0_EL1 to automatic generation
  arm64/sysreg: Convert LORID_EL1 to automatic generation
  arm64/sysreg: Convert LORC_EL1 to automatic generation
  arm64/sysreg: Convert LORN_EL1 to automatic generation
  arm64/sysreg: Convert LOREA_EL1 to automatic generation
  arm64/sysreg: Convert LORSA_EL1 to automatic generation
  arm64/sysreg: Convert ID_AA64ISAR2_EL1 to automatic generation
  arm64/sysreg: Convert ID_AA64ISAR1_EL1 to automatic generation
  arm64/sysreg: Convert GMID to automatic generation
  arm64/sysreg: Convert DCZID_EL0 to automatic generation
  arm64/sysreg: Convert CTR_EL0 to automatic generation
  arm64/sysreg: Add _EL1 into ID_AA64ISAR2_EL1 definition names
  arm64/sysreg: Add _EL1 into ID_AA64ISAR1_EL1 definition names
  arm64/sysreg: Remove defines for RPRES enumeration
  arm64/sysreg: Standardise naming for ID_AA64ZFR0_EL1 fields
  arm64/sysreg: Standardise naming for ID_AA64SMFR0_EL1 enums
  arm64/sysreg: Standardise naming for WFxT defines
  arm64/sysreg: Make BHB clear feature defines match the architecture
  arm64/sysreg: Align pointer auth enumeration defines with architecture
  ...

2 years agoMerge branch 'for-next/stacktrace' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:57:26 +0000 (10:57 +0100)]
Merge branch 'for-next/stacktrace' into for-next/core

* for-next/stacktrace:
  arm64: Copy the task argument to unwind_state
  arm64: Split unwind_init()
  arm64: stacktrace: use non-atomic __set_bit
  arm64: kasan: do not instrument stacktrace.c

2 years agoMerge branch 'for-next/sme' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:57:20 +0000 (10:57 +0100)]
Merge branch 'for-next/sme' into for-next/core

* for-next/sme:
  arm64/fpsimd: Remove duplicate SYS_SVCR read
  arm64/signal: Clean up SVE/SME feature checking inconsistency
  arm64/sme: Expose SMIDR through sysfs

2 years agoMerge branch 'for-next/perf' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:57:14 +0000 (10:57 +0100)]
Merge branch 'for-next/perf' into for-next/core

* for-next/perf:
  drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX
  perf: RISC-V: Add of_node_put() when breaking out of for_each_of_cpu_node()
  docs: perf: Include hns3-pmu.rst in toctree to fix 'htmldocs' WARNING
  drivers/perf: hisi: add driver for HNS3 PMU
  drivers/perf: hisi: Add description for HNS3 PMU driver
  drivers/perf: riscv_pmu_sbi: perf format
  perf/arm-cci: Use the bitmap API to allocate bitmaps
  drivers/perf: riscv_pmu: Add riscv pmu pm notifier
  perf: hisi: Extract hisi_pmu_init
  perf/marvell_cn10k: Fix TAD PMU register offset
  perf/marvell_cn10k: Remove useless license text when SPDX-License-Identifier is already used
  arm64: cpufeature: Allow different PMU versions in ID_DFR0_EL1
  perf/arm-cci: fix typo in comment
  drivers/perf:Directly use ida_alloc()/free()
  drivers/perf: Directly use ida_alloc()/free()

2 years agoMerge branch 'for-next/mte' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:57:08 +0000 (10:57 +0100)]
Merge branch 'for-next/mte' into for-next/core

* for-next/mte:
  arm64: kasan: Revert "arm64: mte: reset the page tag in page->flags"
  mm: kasan: Skip page unpoisoning only if __GFP_SKIP_KASAN_UNPOISON
  mm: kasan: Skip unpoisoning of user pages
  mm: kasan: Ensure the tags are visible before the tag in page->flags

2 years agoMerge branch 'for-next/mm' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:57:02 +0000 (10:57 +0100)]
Merge branch 'for-next/mm' into for-next/core

* for-next/mm:
  arm64: enable THP_SWAP for arm64

2 years agoMerge branch 'for-next/misc' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:56:57 +0000 (10:56 +0100)]
Merge branch 'for-next/misc' into for-next/core

* for-next/misc:
  arm64/mm: use GENMASK_ULL for TTBR_BADDR_MASK_52
  arm64: numa: Don't check node against MAX_NUMNODES
  arm64: mm: Remove assembly DMA cache maintenance wrappers
  arm64/mm: Define defer_reserve_crashkernel()
  arm64: fix oops in concurrently setting insn_emulation sysctls
  arm64: Do not forget syscall when starting a new thread.
  arm64: boot: add zstd support

2 years agoMerge branch 'for-next/kpti' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:56:49 +0000 (10:56 +0100)]
Merge branch 'for-next/kpti' into for-next/core

* for-next/kpti:
  arm64: correct the effect of mitigations off on kpti
  arm64: entry: simplify trampoline data page
  arm64: mm: install KPTI nG mappings with MMU enabled
  arm64: kpti-ng: simplify page table traversal logic

2 years agoMerge branch 'for-next/kcsan' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:56:40 +0000 (10:56 +0100)]
Merge branch 'for-next/kcsan' into for-next/core

* for-next/kcsan:
  arm64: kcsan: Support detecting more missing memory barriers
  asm-generic: Add memory barrier dma_mb()

2 years agoMerge branch 'for-next/irqflags-nmi' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:56:31 +0000 (10:56 +0100)]
Merge branch 'for-next/irqflags-nmi' into for-next/core

* for-next/irqflags-nmi:
  arm64: select TRACE_IRQFLAGS_NMI_SUPPORT
  arch: make TRACE_IRQFLAGS_NMI_SUPPORT generic

2 years agoMerge branch 'for-next/ioremap' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:56:23 +0000 (10:56 +0100)]
Merge branch 'for-next/ioremap' into for-next/core

* for-next/ioremap:
  arm64: Add HAVE_IOREMAP_PROT support
  arm64: mm: Convert to GENERIC_IOREMAP
  mm: ioremap: Add ioremap/iounmap_allowed()
  mm: ioremap: Setup phys_addr of struct vm_struct
  mm: ioremap: Use more sensible name in ioremap_prot()
  ARM: mm: kill unused runtime hook arch_iounmap()

2 years agoMerge branch 'for-next/extable' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:56:16 +0000 (10:56 +0100)]
Merge branch 'for-next/extable' into for-next/core

* for-next/extable:
  arm64: extable: cleanup redundant extable type EX_TYPE_FIXUP
  arm64: extable: move _cond_extable to _cond_uaccess_extable
  arm64: extable: make uaaccess helper use extable type EX_TYPE_UACCESS_ERR_ZERO
  arm64: asm-extable: add asm uacess helpers
  arm64: asm-extable: move data fields
  arm64: extable: add new extable type EX_TYPE_KACCESS_ERR_ZERO support

2 years agoMerge branch 'for-next/errata' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:56:08 +0000 (10:56 +0100)]
Merge branch 'for-next/errata' into for-next/core

* for-next/errata:
  arm64: errata: Remove AES hwcap for COMPAT tasks
  arm64: errata: Add Cortex-A510 to the repeat tlbi list

2 years agoMerge branch 'for-next/docs' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:56:02 +0000 (10:56 +0100)]
Merge branch 'for-next/docs' into for-next/core

* for-next/docs:
  Documentation/arm64: update memory layout table.

2 years agoMerge branch 'for-next/cpuidle' into for-next/core
Will Deacon [Mon, 25 Jul 2022 09:55:17 +0000 (10:55 +0100)]
Merge branch 'for-next/cpuidle' into for-next/core

* for-next/cpuidle:
  arm64: cpuidle: remove generic cpuidle support
  cpuidle: cpuidle-arm: remove arm64 support

2 years agos390/qeth: Fix typo 'the the' in comment
Slark Xiao [Fri, 22 Jul 2022 09:38:34 +0000 (17:38 +0800)]
s390/qeth: Fix typo 'the the' in comment

Replace 'the the' with 'the' in the comment.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: ipa: Fix typo 'the the' in comment
Slark Xiao [Fri, 22 Jul 2022 08:22:27 +0000 (16:22 +0800)]
net: ipa: Fix typo 'the the' in comment

Replace 'the the' with 'the' in the comment.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonfp: bpf: Fix typo 'the the' in comment
Slark Xiao [Fri, 22 Jul 2022 08:20:27 +0000 (16:20 +0800)]
nfp: bpf: Fix typo 'the the' in comment

Replace 'the the' with 'the' in the comment.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
Acked-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agox86/purgatory: Omit use of bin2c
Masahiro Yamada [Mon, 25 Jul 2022 02:08:12 +0000 (11:08 +0900)]
x86/purgatory: Omit use of bin2c

The .incbin assembler directive is much faster than bin2c + $(CC).

Do similar refactoring as in

  4c0f032d4963 ("s390/purgatory: Omit use of bin2c").

Please note the .quad directive matches to size_t in C (both 8
byte) because the purgatory is compiled only for the 64-bit kernel.
(KEXEC_FILE depends on X86_64).

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220725020812.622255-2-masahiroy@kernel.org
2 years agox86/purgatory: Hard-code obj-y in Makefile
Masahiro Yamada [Mon, 25 Jul 2022 02:08:11 +0000 (11:08 +0900)]
x86/purgatory: Hard-code obj-y in Makefile

arch/x86/Kbuild guards the entire purgatory/ directory, and
CONFIG_KEXEC_FILE is bool type.

$(CONFIG_KEXEC_FILE) is always 'y' when this directory is being built.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220725020812.622255-1-masahiroy@kernel.org
2 years agonvme-pci: Crucial P2 has bogus namespace ids
Tobias Gruetzmacher [Fri, 22 Jul 2022 17:05:57 +0000 (19:05 +0200)]
nvme-pci: Crucial P2 has bogus namespace ids

This adds a quirk for the Crucial P2.

Signed-off-by: Tobias Gruetzmacher <tobias-git@23.gs>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2 years agoMerge tag 'v5.19-rc7' into fixes
Michael Ellerman [Mon, 25 Jul 2022 03:49:22 +0000 (13:49 +1000)]
Merge tag 'v5.19-rc7' into fixes

Merge v5.19-rc7 into fixes to bring in:
  d11219ad53dc ("amdgpu: disable powerpc support for the newer display engine")

2 years agoDocumentation: fix sctp_wmem in ip-sysctl.rst
Xin Long [Thu, 21 Jul 2022 14:35:46 +0000 (10:35 -0400)]
Documentation: fix sctp_wmem in ip-sysctl.rst

Since commit 1033990ac5b2 ("sctp: implement memory accounting on tx path"),
SCTP has supported memory accounting on tx path where 'sctp_wmem' is used
by sk_wmem_schedule(). So we should fix the description for this option in
ip-sysctl.rst accordingly.

v1->v2:
  - Improve the description as Marcelo suggested.

Fixes: 1033990ac5b2 ("sctp: implement memory accounting on tx path")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet/tls: Remove the context from the list in tls_device_down
Maxim Mikityanskiy [Thu, 21 Jul 2022 09:11:27 +0000 (12:11 +0300)]
net/tls: Remove the context from the list in tls_device_down

tls_device_down takes a reference on all contexts it's going to move to
the degraded state (software fallback). If sk_destruct runs afterwards,
it can reduce the reference counter back to 1 and return early without
destroying the context. Then tls_device_down will release the reference
it took and call tls_device_free_ctx. However, the context will still
stay in tls_device_down_list forever. The list will contain an item,
memory for which is released, making a memory corruption possible.

Fix the above bug by properly removing the context from all lists before
any call to tls_device_free_ctx.

Fixes: 3740651bf7e2 ("tls: Fix context leak on tls_device_down")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoLinux 5.19-rc8
Linus Torvalds [Sun, 24 Jul 2022 20:26:27 +0000 (13:26 -0700)]
Linux 5.19-rc8

2 years agocerts: make system keyring depend on x509 parser
Adam Borowski [Mon, 18 Jul 2022 13:50:34 +0000 (15:50 +0200)]
certs: make system keyring depend on x509 parser

This code requires x509_load_certificate_list() to be built-in.

Fixes: 60050ffe3d77 ("certs: Move load_certificate_list() to be with the asymmetric keys code")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Link: https://lore.kernel.org/all/202206221515.DqpUuvbQ-lkp@intel.com/
Link: https://lore.kernel.org/all/20220712104554.408dbf42@gandalf.local.home/
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoMerge tag 'perf_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 24 Jul 2022 16:55:53 +0000 (09:55 -0700)]
Merge tag 'perf_urgent_for_v5.19_rc8' of git://git./linux/kernel/git/tip/tip

Pull perf fix from Borislav Petkov:

 - Reorganize the perf LBR init code so that a TSX quirk is applied
   early enough in order for the LBR MSR access to not #GP

* tag 'perf_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/lbr: Fix unchecked MSR access error on HSW

2 years agoMerge tag 'sched_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 24 Jul 2022 16:50:53 +0000 (09:50 -0700)]
Merge tag 'sched_urgent_for_v5.19_rc8' of git://git./linux/kernel/git/tip/tip

Pull scheduler fix from Borislav Petkov:
 "A single fix to correct a wrong BUG_ON() condition for deboosted
  tasks"

* tag 'sched_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/deadline: Fix BUG_ON condition for deboosted tasks

2 years agoMerge tag 'x86_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 24 Jul 2022 16:40:17 +0000 (09:40 -0700)]
Merge tag 'x86_urgent_for_v5.19_rc8' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:
 "A couple more retbleed fallout fixes.

  It looks like their urgency is decreasing so it seems like we've
  managed to catch whatever snafus the limited -rc testing has exposed.
  Maybe we're getting ready... :)

   - Make retbleed mitigations 64-bit only (32-bit will need a bit more
     work if even needed, at all).

   - Prevent return thunks patching of the LKDTM modules as it is not
     needed there

   - Avoid writing the SPEC_CTRL MSR on every kernel entry on eIBRS
     parts

   - Enhance error output of apply_returns() when it fails to patch a
     return thunk

   - A sparse fix to the sev-guest module

   - Protect EFI fw calls by issuing an IBPB on AMD"

* tag 'x86_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/speculation: Make all RETbleed mitigations 64-bit only
  lkdtm: Disable return thunks in rodata.c
  x86/bugs: Warn when "ibrs" mitigation is selected on Enhanced IBRS parts
  x86/alternative: Report missing return thunk details
  virt: sev-guest: Pass the appropriate argument type to iounmap()
  x86/amd: Use IBPB for firmware calls

2 years agoMerge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 24 Jul 2022 16:33:13 +0000 (09:33 -0700)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fix from Stephen Boyd:
 "One more fix to set the correct IO mapping for a clk gate in the
  lan966x driver"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: lan966x: Fix the lan966x clock gate register address

2 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sat, 23 Jul 2022 17:22:26 +0000 (10:22 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:

 - Check for invalid flags to KVM_CAP_X86_USER_SPACE_MSR

 - Fix use of sched_setaffinity in selftests

 - Sync kernel headers to tools

 - Fix KVM_STATS_UNIT_MAX

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Protect the unused bits in MSR exiting flags
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  KVM: selftests: Fix target thread to be migrated in rseq_test
  KVM: stats: Fix value for KVM_STATS_UNIT_MAX for boolean stats

2 years agox86/speculation: Make all RETbleed mitigations 64-bit only
Ben Hutchings [Sat, 23 Jul 2022 15:22:47 +0000 (17:22 +0200)]
x86/speculation: Make all RETbleed mitigations 64-bit only

The mitigations for RETBleed are currently ineffective on x86_32 since
entry_32.S does not use the required macros.  However, for an x86_32
target, the kconfig symbols for them are still enabled by default and
/sys/devices/system/cpu/vulnerabilities/retbleed will wrongly report
that mitigations are in place.

Make all of these symbols depend on X86_64, and only enable RETHUNK by
default on X86_64.

Fixes: f43b9876e857 ("x86/retbleed: Add fine grained Kconfig knobs")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/YtwSR3NNsWp1ohfV@decadent.org.uk
2 years agoMerge tag 'spi-fix-v5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brooni...
Linus Torvalds [Fri, 22 Jul 2022 23:40:03 +0000 (16:40 -0700)]
Merge tag 'spi-fix-v5.19-rc7' of git://git./linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few more small driver specific fixes"

* tag 'spi-fix-v5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: spi-rspi: Fix PIO fallback on RZ platforms
  spi: spi-cadence: Fix SPI NO Slave Select macro definition
  spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers

2 years agoRevert "tcp: change pingpong threshold to 3"
Wei Wang [Thu, 21 Jul 2022 20:44:04 +0000 (20:44 +0000)]
Revert "tcp: change pingpong threshold to 3"

This reverts commit 4a41f453bedfd5e9cd040bad509d9da49feb3e2c.

This to-be-reverted commit was meant to apply a stricter rule for the
stack to enter pingpong mode. However, the condition used to check for
interactive session "before(tp->lsndtime, icsk->icsk_ack.lrcvtime)" is
jiffy based and might be too coarse, which delays the stack entering
pingpong mode.
We revert this patch so that we no longer use the above condition to
determine interactive session, and also reduce pingpong threshold to 1.

Fixes: 4a41f453bedf ("tcp: change pingpong threshold to 3")
Reported-by: LemmyHuang <hlm3280@163.com>
Suggested-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220721204404.388396-1-weiwan@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'riscv-for-linus-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 22 Jul 2022 20:02:05 +0000 (13:02 -0700)]
Merge tag 'riscv-for-linus-5.19-rc8' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - Two kexec-related build fixes

 - A DTS update to make the GPIO nodes match the upcoming dtschema

 - A fix that passes -mno-relax directly to the assembler when building
   modules, to work around compilers that fail to do so

* tag 'riscv-for-linus-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: add as-options for modules with assembly compontents
  riscv: dts: align gpio-key node names with dtschema
  RISC-V: kexec: Fix build error without CONFIG_KEXEC
  RISCV: kexec: Fix build error without CONFIG_MODULES

2 years agoMerge tag 'acpi-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 22 Jul 2022 19:56:49 +0000 (12:56 -0700)]
Merge tag 'acpi-5.19-rc8' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Fix yet another piece of ACPI CPPC changes fallout on AMD platforms
  (Mario Limonciello)"

* tag 'acpi-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: CPPC: Don't require flexible address space if X86_FEATURE_CPPC is supported

2 years agoMerge tag 'io_uring-5.19-2022-07-21' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 22 Jul 2022 19:47:09 +0000 (12:47 -0700)]
Merge tag 'io_uring-5.19-2022-07-21' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "Fix for a bad kfree() introduced in this cycle, and a quick fix for
  disabling buffer recycling for IORING_OP_READV.

  The latter will get reworked for 5.20, but it gets the job done for
  5.19"

* tag 'io_uring-5.19-2022-07-21' of git://git.kernel.dk/linux-block:
  io_uring: do not recycle buffer in READV
  io_uring: fix free of unallocated buffer list

2 years agoMerge tag 'block-5.19-2022-07-21' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 22 Jul 2022 19:41:14 +0000 (12:41 -0700)]
Merge tag 'block-5.19-2022-07-21' of git://git.kernel.dk/linux-block

Pull block fix from Jens Axboe:
 "Just a single fix for missing error propagation for an allocation
  failure in raid5"

* tag 'block-5.19-2022-07-21' of git://git.kernel.dk/linux-block:
  md/raid5: missing error code in setup_conf()

2 years agoMerge tag 'i2c-for-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Fri, 22 Jul 2022 19:36:59 +0000 (12:36 -0700)]
Merge tag 'i2c-for-5.19-rc8' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Two driver bugfixes and a typo fix"

* tag 'i2c-for-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: cadence: Change large transfer count reset logic to be unconditional
  i2c: imx: fix typo in comment
  i2c: mlxcpld: Fix register setting for 400KHz frequency

2 years agoMerge tag 'gpio-fixes-for-v5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 22 Jul 2022 19:28:47 +0000 (12:28 -0700)]
Merge tag 'gpio-fixes-for-v5.19-rc8' of git://git./linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix several regmap usage issues in gpio-pca953x

 - fix out-of-tree build for GPIO selftests

 - fix integer overflow in gpio-xilinx

* tag 'gpio-fixes-for-v5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: gpio-xilinx: Fix integer overflow
  selftests: gpio: fix include path to kernel headers for out of tree builds
  gpio: pca953x: use the correct register address when regcache sync during init
  gpio: pca953x: use the correct range when do regmap sync
  gpio: pca953x: only use single read/write for No AI mode

2 years agoMerge tag 'pinctrl-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Fri, 22 Jul 2022 19:24:04 +0000 (12:24 -0700)]
Merge tag 'pinctrl-v5.19-3' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Only driver fixes:

   - NULL check for the ralink and sunplus drivers

   - Add Jacky Bai as maintainer for the Freescale pin controllers

   - Fix pin config ops for the Ocelot LAN966x and SparX5

   - Disallow AMD pin control to be a module: the GPIO lines need to be
     active in early boot, so no can do

   - Fix the Armada 37xx to use raw spinlocks in the interrupt handler
     path to avoid wait context"

* tag 'pinctrl-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: armada-37xx: use raw spinlocks for regmap to avoid invalid wait context
  pinctrl: armada-37xx: make irq_lock a raw spinlock to avoid invalid wait context
  pinctrl: Don't allow PINCTRL_AMD to be a module
  pinctrl: ocelot: Fix pincfg
  pinctrl: ocelot: Fix pincfg for lan966x
  MAINTAINERS: Update freescale pin controllers maintainer
  pinctrl: sunplus: Add check for kcalloc
  pinctrl: ralink: Check for null return of devm_kcalloc

2 years agoriscv: compat: vdso: Fix vdso_install target
Emil Renner Berthing [Sat, 25 Jun 2022 15:42:07 +0000 (16:42 +0100)]
riscv: compat: vdso: Fix vdso_install target

When CONFIG_COMPAT=y the vdso_install target fails:

$ make ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- vdso_install
  INSTALL vdso.so
make[1]: *** No rule to make target 'vdso_install'.  Stop.
make: *** [arch/riscv/Makefile:112: vdso_install] Error 2

The problem is that arch/riscv/kernel/compat_vdso/Makefile doesn't
have a vdso_install target, but instead calls it compat_vdso_install.

Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Link: https://lore.kernel.org/r/20220625154207.80972-1-emil.renner.berthing@canonical.com
Fixes: 0715372a06ce ("riscv: compat: vdso: Add COMPAT_VDSO base code implementation")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agoMerge tag 'sound-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 22 Jul 2022 19:19:02 +0000 (12:19 -0700)]
Merge tag 'sound-5.19-rc8' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Only undoes the Rockchip BCLK changes to address a regression"

* tag 'sound-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: rockchip-i2s: Undo BCLK pinctrl changes
  ASoC: rockchip: i2s: Fix NULL pointer dereference when pinctrl is not found

2 years agoMerge tag 'mmc-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 22 Jul 2022 19:14:13 +0000 (12:14 -0700)]
Merge tag 'mmc-v5.19-rc6' of git://git./linux/kernel/git/ulfh/mmc

Pull MMC fix from Ulf Hansson:

 - sdhci-omap: Fix a lockdep warning while probing

* tag 'mmc-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-omap: Fix a lockdep warning for PM runtime init

2 years agoMerge tag 'drm-fixes-2022-07-22' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 22 Jul 2022 19:03:19 +0000 (12:03 -0700)]
Merge tag 'drm-fixes-2022-07-22' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Fixes for this week.

  The main one is the i915 firmware fix for the phoronix reported issue.
  I've written some firmware guidelines as a result, should land in
  -next soon. Otherwise a few amdgpu fixes, a scheduler fix, ttm fix and
  two other minor ones.

  scheduler:
   - scheduling while atomic fix

  ttm:
   - locking fix

  edp:
   - variable typo fix

  i915:
   - add back support for v69 firmware on ADL-P

  amdgpu:
   - Drop redundant buffer cleanup that can lead to a segfault
   - Add a bo_list mutex to avoid possible list corruption in CS
   - dmub notification fix

  imx:
   - fix error path"

* tag 'drm-fixes-2022-07-22' of git://anongit.freedesktop.org/drm/drm:
  drm/amdgpu: Protect the amdgpu_bo_list list with a mutex v2
  drm/imx/dcss: Add missing of_node_put() in fail path
  drm/i915/guc: support v69 in parallel to v70
  drm/i915/guc: Support programming the EU priority in the GuC descriptor
  drm/panel-edp: Fix variable typo when saving hpd absent delay from DT
  drm/amdgpu: Remove one duplicated ef removal
  drm/ttm: fix locking in vmap/vunmap TTM GEM helpers
  drm/scheduler: Don't kill jobs in interrupt context
  drm/amd/display: Fix new dmub notification enabling in DM

2 years agoMerge tag 'rcu-urgent.2022.07.21a' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 22 Jul 2022 17:01:20 +0000 (10:01 -0700)]
Merge tag 'rcu-urgent.2022.07.21a' of git://git./linux/kernel/git/paulmck/linux-rcu

Pull RCU fix from Paul McKenney:
 "This contains a pair of commits that fix 282d8998e997 ("srcu: Prevent
  expedited GPs and blocking readers from consuming CPU"), which was
  itself a fix to an SRCU expedited grace-period problem that could
  prevent kernel live patching (KLP) from completing.

  That SRCU fix for KLP introduced large (as in minutes) boot-time
  delays to embedded Linux kernels running on qemu/KVM. These delays
  were due to the emulation of certain MMIO operations controlling
  memory layout, which were emulated with one expedited grace period per
  access. Common configurations required thousands of boot-time MMIO
  accesses, and thus thousands of boot-time expedited SRCU grace
  periods.

  In these configurations, the occasional sleeps that allowed KLP to
  proceed caused excessive boot delays. These commits preserve enough
  sleeps to permit KLP to proceed, but few enough that the virtual
  embedded kernels still boot reasonably quickly.

  This represents a regression introduced in the v5.19 merge window, and
  the bug is causing significant inconvenience"

* tag 'rcu-urgent.2022.07.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  srcu: Make expedited RCU grace periods block even less frequently
  srcu: Block less aggressively for expedited grace periods

2 years agommu_gather: fix the CONFIG_MMU_GATHER_NO_RANGE case
Linus Torvalds [Fri, 22 Jul 2022 16:28:34 +0000 (09:28 -0700)]
mmu_gather: fix the CONFIG_MMU_GATHER_NO_RANGE case

Sudip reports that alpha doesn't build properly, with errors like

  include/asm-generic/tlb.h:401:1: error: redefinition of 'tlb_update_vma_flags'
    401 | tlb_update_vma_flags(struct mmu_gather *tlb, struct vm_area_struct *vma)
        | ^~~~~~~~~~~~~~~~~~~~
  include/asm-generic/tlb.h:372:1: note: previous definition of 'tlb_update_vma_flags' with type 'void(struct mmu_gather *, struct vm_area_struct *)'
    372 | tlb_update_vma_flags(struct mmu_gather *tlb, struct vm_area_struct *vma) { }

the cause being that We have this odd situation where some architectures
were never converted to the newer TLB flushing interfaces that have a
range for the flush.  Instead people left them alone, and we have them
select the MMU_GATHER_NO_RANGE config option to make the tlb header
files account for this.

Peter Zijlstra cleaned some of these nasty header file games up in
commits

  1e9fdf21a433 ("mmu_gather: Remove per arch tlb_{start,end}_vma()")
  18ba064e42df ("mmu_gather: Let there be one tlb_{start,end}_vma() implementation")

but tlb_update_vma_flags() was left alone, and then commit b67fbebd4cf9
("mmu_gather: Force tlb-flush VM_PFNMAP vmas") ended up removing only
_one_ of the two stale duplicate dummy inline functions.

This removes the other stale one.

Somebody braver than me should try to remove MMU_GATHER_NO_RANGE
entirely, but it requires fixing up the oddball architectures that use
it: alpha, m68k, microblaze, nios2 and openrisc.

The fixups should be fairly straightforward ("fix the build errors it
exposes by adding the appropriate range arguments"), but the reason this
wasn't done in the first place is that so few people end up working on
those architectures.  But it could be done one architecture at a time,
hint, hint.

Reported-by: Sudip Mukherjee (Codethink) <sudipm.mukherjee@gmail.com>
Fixes: b67fbebd4cf9 ("mmu_gather: Force tlb-flush VM_PFNMAP vmas")
Link: https://lore.kernel.org/all/YtpXh0QHWwaEWVAY@debian/
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Piggin <npiggin@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoerofs: get rid of the leftover PAGE_SIZE in dir.c
Gao Xiang [Sun, 19 Jun 2022 15:09:40 +0000 (23:09 +0800)]
erofs: get rid of the leftover PAGE_SIZE in dir.c

Convert the last hardcoded PAGE_SIZEs of uncompressed cases.

Reviewed-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220619150940.121005-1-hsiangkao@linux.alibaba.com
2 years agoerofs: get rid of erofs_prepare_dio() helper
Gao Xiang [Wed, 20 Jul 2022 08:22:29 +0000 (16:22 +0800)]
erofs: get rid of erofs_prepare_dio() helper

Fold in erofs_prepare_dio() in order to simplify the code.

Reviewed-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220720082229.12172-1-hsiangkao@linux.alibaba.com
2 years agoerofs: introduce multi-reference pclusters (fully-referenced)
Gao Xiang [Fri, 15 Jul 2022 15:42:03 +0000 (23:42 +0800)]
erofs: introduce multi-reference pclusters (fully-referenced)

Let's introduce multi-reference pclusters at runtime. In details,
if one pcluster is requested by multiple extents at almost the same
time (even belong to different files), the longest extent will be
decompressed as representative and the other extents are actually
copied from the longest one in one round.

After this patch, fully-referenced extents can be correctly handled
and the full decoding check needs to be bypassed for
partial-referenced extents.

Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220715154203.48093-17-hsiangkao@linux.alibaba.com