Pull more drm updates from Dave Airlie:
 "This is mostly regular fixes, msm and amdgpu. There is a tegra patch
  that is bit of prep work for a 5.20 feature to avoid some inter-tree
  syncs, and a couple of late addition amdgpu uAPI changes but best to
  get those in early, and the userspace pieces are ready.

  msm:
   - Limiting WB modes to max sspp linewidth
   - Fixing the supported rotations to add 180 back for IGT
   - Fix to handle pm_runtime_get_sync() errors to avoid unclocked
     access in the bind() path for dpu driver
   - Fix the irq_free() without request issue which was a big-time
     hitter in the CI-runs.

  amdgpu:
   - Update fdinfo to the common drm format
   - uapi:
       - Add VM_NOALLOC GPUVM attribute to prevent buffers for going
         into the MALL
       - Add AMDGPU_GEM_CREATE_DISCARDABLE flag to create buffers that
         can be discarded on eviction
       - Mesa code which uses these:
           https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16466
   - Link training fixes
   - DPIA fixes
   - Misc code cleanups
   - Aux fixes
   - Hotplug fixes
   - More FP clean up
   - Misc GFX9/10 fixes
   - Fix a possible memory leak in SMU shutdown
   - SMU 13 updates
   - RAS fixes
   - TMZ fixes
   - GC 11 updates
   - SMU 11 metrics fixes
   - Fix coverage blend mode for overlay plane
   - Note DDR vs LPDDR memory
   - Fuzz fix for CS IOCTL
   - Add new PCI DID

  amdkfd:
   - Clean up hive setup
   - Misc fixes

  tegra:
   - add some prelim 5.20 work to avoid inter-tree mess"

* tag 'drm-next-2022-06-03-1' of git://anongit.freedesktop.org/drm/drm: (57 commits)
  drm/msm/dpu: Move min BW request and full BW disable back to mdss
  drm/msm/dpu: Fix pointer dereferenced before checking
  drm/msm/dpu: Remove unused code
  drm/msm/disp/dpu1: remove superfluous init
  drm/msm/dp: Always clear mask bits to disable interrupts at dp_ctrl_reset_irq_ctrl()
  gpu: host1x: Add context bus
  drm/amdgpu: add drm-client-id to fdinfo v2
  drm/amdgpu: Convert to common fdinfo format v5
  drm/amdgpu: bump minor version number
  drm/amdgpu: add AMDGPU_VM_NOALLOC v2
  drm/amdgpu: add AMDGPU_GEM_CREATE_DISCARDABLE
  drm/amdgpu: add beige goby PCI ID
  drm/amd/pm: Return auto perf level, if unsupported
  drm/amdkfd: fix typo in comment
  drm/amdgpu/gfx: fix typos in comments
  drm/amdgpu/cs: make commands with 0 chunks illegal behaviour.
  drm/amdgpu: differentiate between LP and non-LP DDR memory
  drm/amdgpu: Resolve pcie_bif RAS recovery bug
  drm/amdgpu: clean up asd on the ta_firmware_header_v2_0
  drm/amdgpu/discovery: validate VCN and SDMA instances
  ...

drm/tegra: Preparatory work for v5.19

This contains a single patch from a series that's ready to go for v5.10
but is also a shared build-time dependency for an IOMMU series that is
planned for v5.20. The idea is to take this into v5.19 to fulfill that
dependency and remove the need for close coordination for the two
series.
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220601100335.3841301-1-thierry.reding@gmail.com

5.19 fixes for msm-next

- Fix to add minimum ICC vote in the msm_mdss pm_resume path to address
   bootup splats
- Fix to avoid dereferencing without checking in WB encoder
- Fix to avoid crash during suspend in DP driver by ensuring interrupt
   mask bits are updated
- Remove unused code from dpu_encoder_virt_atomic_check()
- Fix to remove redundant init of dsc variable
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Abhinav Kumar <quic_abhinavk@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/927b201e-a734-a29d-b9fb-b9889e1f7795@quicinc.com

Pull documentation fixes from Jonathan Corbet:
 "A handful of late-arriving documentation fixes and the addition of an
  SVG tux logo which, I'm assured, we're going to want"

* tag 'docs-5.19-2' of git://git.lwn.net/linux:
  documentation: Format button_dev as a pointer.
  docs: add SVG version of the Linux logo
  docs: move Linux logo into a new `images` folder
  docs: blockdev: change title to match section content
  docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0

Merge tag 'asm-generic-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic fixes from Arnd Bergmann:
 "The header cleanup series from Masahiro Yamada ended up causing some
  regressions in the ABI because of an ambigous uid_t type.

  This was only caught after the original patches got merged, but at
  least the fixes are trivial and hopefully complete"

* tag 'asm-generic-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  binder: fix sender_euid type in uapi header
  sparc: fix mis-use of __kernel_{uid,gid}_t in uapi/asm/stat.h
  powerpc: use __kernel_{uid,gid}32_t in uapi/asm/stat.h
  mips: use __kernel_{uid,gid}32_t in uapi/asm/stat.h

Pull more ARM SoC updates from Arnd Bergmann:
 "This is the second part of the general SoC updates, containing
  everything that did not make it in the initial pull request, or that
  came in as a bugfix later.

   - Devicetree updates for SoCFPGA, ASPEED, AT91 and Rockchip,
     including a new machine using an ASPEED BMC.

   - More DT fixes from Krzysztof Kozlowski across platforms

   - A new SoC platform for the GXP baseboard management controller,
     used in current server products from HPE"

* tag 'arm-late-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (56 commits)
  ARM: configs: Enable more audio support for i.MX
  tee: optee: Pass a pointer to virt_addr_valid()
  arm64: dts: rockchip: rename Quartz64-A bluetooth gpios
  arm64: dts: rockchip: add clocks property to cru node rk3368
  arm64: dts: rockchip: add clocks property to cru node rk3308
  arm64: dts: rockchip: add clocks to rk356x cru
  ARM: dts: rockchip: add clocks property to cru node rk3228
  ARM: dts: rockchip: add clocks property to cru node rk3036
  ARM: dts: rockchip: add clocks property to cru node rk3066a/rk3188
  ARM: dts: rockchip: add clocks property to cru node rk3288
  ARM: dts: rockchip: Remove "amba" bus nodes from rv1108
  ARM: dts: rockchip: add clocks property to cru node rv1108
  arm64: dts: sprd: use new 'dma-channels' property
  ARM: dts: da850: use new 'dma-channels' property
  ARM: dts: pxa: use new 'dma-channels/requests' properties
  soc: ixp4xx/qmgr: Fix unused match warning
  ARM: ep93xx: Make ts72xx_register_flash() static
  ARM: configs: enable support for Kontron KSwitch D10
  ep93xx: clock: Do not return the address of the freed memory
  arm64: dts: intel: add device tree for n6000
  ...

Pull more ARM multiplatform updates from Arnd Bergmann:
 "The second part of the multiplatform changes now converts the
  Intel/Marvell PXA platform along with the rest. The patches went
  through several rebases before the merge window as bugs were found, so
  they remained separate.

  This has to touch a lot of drivers, in particular the touchscreen,
  pcmcia, sound and clk bits, to detach the driver files from the
  platform and board specific header files"

* tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits)
  ARM: pxa/mmp: remove traces of plat-pxa
  ARM: pxa: convert to multiplatform
  ARM: pxa/sa1100: move I/O space to PCI_IOBASE
  ARM: pxa: remove support for MTD_XIP
  ARM: pxa: move mach/*.h to mach-pxa/
  ARM: PXA: fix multi-cpu build of xsc3
  ARM: pxa: move plat-pxa to drivers/soc/
  ARM: mmp: rename pxa_register_device
  ARM: mmp: remove tavorevb board support
  ARM: pxa: remove unused mach/bitfield.h
  ARM: pxa: move clk register definitions to driver
  ARM: pxa: move smemc register access from clk to platform
  cpufreq: pxa3: move clk register access to clk driver
  ARM: pxa: remove get_clk_frequency_khz()
  ARM: pxa: pcmcia: move smemc configuration back to arch
  ASoC: pxa: i2s: use normal MMIO accessors
  ASoC: pxa: ac97: use normal MMIO accessors
  ASoC: pxa: use pdev resource for FIFO regs
  Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops
  Input: wm97xx - switch to using threaded IRQ
  ...

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf and netfilter.

  Current release - new code bugs:

   - af_packet: make sure to pull the MAC header, avoid skb panic in GSO

   - ptp_clockmatrix: fix inverted logic in is_single_shot()

   - netfilter: flowtable: fix missing FLOWI_FLAG_ANYSRC flag

   - dt-bindings: net: adin: fix adi,phy-output-clock description syntax

   - wifi: iwlwifi: pcie: rename CAUSE macro, avoid MIPS build warning

  Previous releases - regressions:

   - Revert "net: af_key: add check for pfkey_broadcast in function
     pfkey_process"

   - tcp: fix tcp_mtup_probe_success vs wrong snd_cwnd

   - nf_tables: disallow non-stateful expression in sets earlier

   - nft_limit: clone packet limits' cost value

   - nf_tables: double hook unregistration in netns path

   - ping6: fix ping -6 with interface name

  Previous releases - always broken:

   - sched: fix memory barriers to prevent skbs from getting stuck in
     lockless qdiscs

   - neigh: set lower cap for neigh_managed_work rearming, avoid
     constantly scheduling the probe work

   - bpf: fix probe read error on big endian in ___bpf_prog_run()

   - amt: memory leak and error handling fixes

  Misc:

   - ipv6: expand & rename accept_unsolicited_na to accept_untracked_na"

* tag 'net-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (80 commits)
  net/af_packet: make sure to pull mac header
  net: add debug info to __skb_pull()
  net: CONFIG_DEBUG_NET depends on CONFIG_NET
  stmmac: intel: Add RPL-P PCI ID
  net: stmmac: use dev_err_probe() for reporting mdio bus registration failure
  tipc: check attribute length for bearer name
  ice: fix access-beyond-end in the switch code
  nfp: remove padding in nfp_nfdk_tx_desc
  ax25: Fix ax25 session cleanup problems
  net: usb: qmi_wwan: Add support for Cinterion MV31 with new baseline
  sfc/siena: fix wrong tx channel offset with efx_separate_tx_channels
  sfc/siena: fix considering that all channels have TX queues
  socket: Don't use u8 type in uapi socket.h
  net/sched: act_api: fix error code in tcf_ct_flow_table_fill_tuple_ipv6()
  net: ping6: Fix ping -6 with interface name
  macsec: fix UAF bug for real_dev
  octeontx2-af: fix error code in is_valid_offset()
  wifi: mac80211: fix use-after-free in chanctx code
  bonding: guard ns_targets by CONFIG_IPV6
  tcp: tcp_rtx_synack() can be called from process context
  ...

Commit cfc1d277 ("module: Move all into module/") changed the prefix
of the module param by moving/renaming files.  A later commit also moves
the module_param() into a different file, thereby changing the prefix
yet again.

This would break kernel cmdline compatibility and also userspace
compatibility at /sys/module/module/parameters/sig_enforce.

So, set the prefix back to "module.".

Fixes: cfc1d277 ("module: Move all into module/")
Link: https://lore.kernel.org/lkml/20220602034111.4163292-1-saravanak@google.com/
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Aaron Tomlin <atomlin@redhat.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull pci fixes from Bjorn Helgaas:

 - Revert brcmstb patches that broke booting on Raspberry Pi Compute
   Module 4 (Bjorn Helgaas)

 - Fix bridge_d3_blacklist[] error that overwrote the existing Gigabyte
   X299 entry instead of adding a new one (Bjorn Helgaas)

 - Update Lorenzo Pieralisi's email address in MAINTAINERS (Lorenzo
   Pieralisi)

* tag 'pci-v5.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Update Lorenzo Pieralisi's email address
  PCI/PM: Fix bridge_d3_blacklist[] Elo i2 overwrite of Gigabyte X299
  Revert "PCI: brcmstb: Split brcm_pcie_setup() into two funcs"
  Revert "PCI: brcmstb: Add mechanism to turn on subdev regulators"
  Revert "PCI: brcmstb: Add control of subdevice voltage regulators"
  Revert "PCI: brcmstb: Do not turn off WOL regulators on suspend"

Eric Dumazet says:

====================
net: af_packet: be careful when expanding mac header size

A recent regression in af_packet needed a preliminary debug patch,
which will presumably be useful for next bugs hunting.

The af_packet fix is to make sure MAC headers are contained in
skb linear part, as GSO stack requests.

v2: CONFIG_DEBUG_NET depends on CONFIG_NET to avoid compile
   errors found by kernel bots.
====================

Link: https://lore.kernel.org/r/20220602161859.2546399-1-eric.dumazet@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

GSO assumes skb->head contains link layer headers.

tun device in some case can provide base 14 bytes,
regardless of VLAN being used or not.

After blamed commit, we can end up setting a network
header offset of 18+, we better pull the missing
bytes to avoid a posible crash in GSO.

syzbot report was:
kernel BUG at include/linux/skbuff.h:2699!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3601 Comm: syz-executor210 Not tainted 5.18.0-syzkaller-11338-g2c5ca23f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__skb_pull include/linux/skbuff.h:2699 [inline]
RIP: 0010:skb_mac_gso_segment+0x48f/0x530 net/core/gro.c:136
Code: 00 48 c7 c7 00 96 d4 8a c6 05 cb d3 45 06 01 e8 26 bb d0 01 e9 2f fd ff ff 49 c7 c4 ea ff ff ff e9 f1 fe ff ff e8 91 84 19 fa <0f> 0b 48 89 df e8 97 44 66 fa e9 7f fd ff ff e8 ad 44 66 fa e9 48
RSP: 0018:ffffc90002e2f4b8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000012 RCX: 0000000000000000
RDX: ffff88805bb58000 RSI: ffffffff8760ed0f RDI: 0000000000000004
RBP: 0000000000005dbc R08: 0000000000000004 R09: 0000000000000fe0
R10: 0000000000000fe4 R11: 0000000000000000 R12: 0000000000000fe0
R13: ffff88807194d780 R14: 1ffff920005c5e9b R15: 0000000000000012
FS:  000055555730f300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200015c0 CR3: 0000000071ff8000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 __skb_gso_segment+0x327/0x6e0 net/core/dev.c:3411
 skb_gso_segment include/linux/netdevice.h:4749 [inline]
 validate_xmit_skb+0x6bc/0xf10 net/core/dev.c:3669
 validate_xmit_skb_list+0xbc/0x120 net/core/dev.c:3719
 sch_direct_xmit+0x3d1/0xbe0 net/sched/sch_generic.c:327
 __dev_xmit_skb net/core/dev.c:3815 [inline]
 __dev_queue_xmit+0x14a1/0x3a00 net/core/dev.c:4219
 packet_snd net/packet/af_packet.c:3071 [inline]
 packet_sendmsg+0x21cb/0x5550 net/packet/af_packet.c:3102
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:734
 ____sys_sendmsg+0x6eb/0x810 net/socket.c:2492
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2546
 __sys_sendmsg net/socket.c:2575 [inline]
 __do_sys_sendmsg net/socket.c:2584 [inline]
 __se_sys_sendmsg net/socket.c:2582 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2582
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f4b95da06c9
Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd7defc4c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ffd7defc4f0 RCX: 00007f4b95da06c9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 0000000000000003 R08: bb1414ac00000050 R09: bb1414ac00000050
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd7defc4e0 R14: 00007ffd7defc4d8 R15: 00007ffd7defc4d4
 </TASK>

Fixes: dfed913e ("net/af_packet: add VLAN support for AF_PACKET SOCK_RAW GSO")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

While analyzing yet another syzbot report, I found the following
patch very useful. It allows to better understand what went wrong.

This debug info is only enabled if CONFIG_DEBUG_NET=y,
which is the case for syzbot builds.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

It makes little sense to debug networking stacks
if networking is not compiled in.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Add PCI ID for Ethernet TSN Controller on RPL-P.
Signed-off-by: Michael Sit Wei Hong <michael.wei.hong.sit@intel.com>
Link: https://lore.kernel.org/r/20220602073507.3955721-1-michael.wei.hong.sit@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

I have a board where these two lines are always printed during boot:

   imx-dwmac 30bf0000.ethernet: Cannot register the MDIO bus
   imx-dwmac 30bf0000.ethernet: stmmac_dvr_probe: MDIO bus (id: 1) registration failed

It's perfectly fine, and the device is successfully (and silently, as
far as the console goes) probed later.

Use dev_err_probe() instead, which will demote these messages to debug
level (thus removing the alarming messages from the console) when the
error is -EPROBE_DEFER, and also has the advantage of including the
error code if/when it happens to be something other than -EPROBE_DEFER.

While here, add the missing \n to one of the format strings.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220602074840.1143360-1-linux@rasmusvillemoes.dkSigned-off-by: Jakub Kicinski <kuba@kernel.org>

syzbot reported uninit-value:
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:644 [inline]
BUG: KMSAN: uninit-value in string+0x4f9/0x6f0 lib/vsprintf.c:725
 string_nocheck lib/vsprintf.c:644 [inline]
 string+0x4f9/0x6f0 lib/vsprintf.c:725
 vsnprintf+0x2222/0x3650 lib/vsprintf.c:2806
 vprintk_store+0x537/0x2150 kernel/printk/printk.c:2158
 vprintk_emit+0x28b/0xab0 kernel/printk/printk.c:2256
 vprintk_default+0x86/0xa0 kernel/printk/printk.c:2283
 vprintk+0x15f/0x180 kernel/printk/printk_safe.c:50
 _printk+0x18d/0x1cf kernel/printk/printk.c:2293
 tipc_enable_bearer net/tipc/bearer.c:371 [inline]
 __tipc_nl_bearer_enable+0x2022/0x22a0 net/tipc/bearer.c:1033
 tipc_nl_bearer_enable+0x6c/0xb0 net/tipc/bearer.c:1042
 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]

- Do sanity check the attribute length for TIPC_NLA_BEARER_NAME.
- Do not use 'illegal name' in printing message.

Reported-by: syzbot+e820fdc8ce362f2dea51@syzkaller.appspotmail.com
Fixes: cb30a633 ("tipc: refactor function tipc_enable_bearer()")
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Link: https://lore.kernel.org/r/20220602063053.5892-1-hoang.h.le@dektech.com.auSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Pull ceph updates from Ilya Dryomov:
 "A big pile of assorted fixes and improvements for the filesystem with
  nothing in particular standing out, except perhaps that the fact that
  the MDS never really maintained atime was made official and thus it's
  no longer updated on the client either.

  We also have a MAINTAINERS update: Jeff is transitioning his
  filesystem maintainership duties to Xiubo"

* tag 'ceph-for-5.19-rc1' of https://github.com/ceph/ceph-client: (23 commits)
  MAINTAINERS: move myself from ceph "Maintainer" to "Reviewer"
  ceph: fix decoding of client session messages flags
  ceph: switch TASK_INTERRUPTIBLE to TASK_KILLABLE
  ceph: remove redundant variable ino
  ceph: try to queue a writeback if revoking fails
  ceph: fix statfs for subdir mounts
  ceph: fix possible deadlock when holding Fwb to get inline_data
  ceph: redirty the page for writepage on failure
  ceph: try to choose the auth MDS if possible for getattr
  ceph: disable updating the atime since cephfs won't maintain it
  ceph: flush the mdlog for filesystem sync
  ceph: rename unsafe_request_wait()
  libceph: use swap() macro instead of taking tmp variable
  ceph: fix statx AT_STATX_DONT_SYNC vs AT_STATX_FORCE_SYNC check
  ceph: no need to invalidate the fscache twice
  ceph: replace usage of found with dedicated list iterator variable
  ceph: use dedicated list iterator variable
  ceph: update the dlease for the hashed dentry when removing
  ceph: stop retrying the request when exceeding 256 times
  ceph: stop forwarding the request when exceeding 256 times
  ...

Merge tag 'livepatching-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching

Pull livepatching cleanup from Petr Mladek:

 - Remove duplicated livepatch code [Christophe]

* tag 'livepatching-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
  livepatch: Remove klp_arch_set_pc() and asm/livepatch.h

Pull printk fixup from Petr Mladek:

 - Revert inappropriate use of wake_up_interruptible_all() in printk()

* tag 'printk-for-5.19-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  Revert "printk: wake up all waiters"

The {pid,uid}_t fields of struct binder_transaction were recently
replaced to use kernel types in commit 169adc2b ("android/binder.h:
add linux/android/binder(fs).h to UAPI compile-test coverage").

However, using __kernel_uid_t here breaks backwards compatibility in
architectures using 16-bits for this type, since glibc and some others
still expect a 32-bit uid_t. Instead, let's use __kernel_uid32_t which
avoids this compatibility problem.

Fixes: 169adc2b ("android/binder.h: add linux/android/binder(fs).h to UAPI compile-test coverage")
Reported-by: Christopher Ferris <cferris@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Pull memblock test suite updates from Mike Rapoport:
 "Comment updates for memblock test suite

  Update comments in the memblock tests so that they will have
  consistent style"

* tag 'memblock-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  memblock tests: remove completed TODO item
  memblock tests: update style of comments for memblock_free_*() functions
  memblock tests: update style of comments for memblock_remove_*() functions
  memblock tests: update style of comments for memblock_reserve_*() functions
  memblock tests: update style of comments for memblock_add_*() functions

The "data->block[0]" variable comes from the user and is a number
between 0-255.  It needs to be capped to prevent writing beyond the end
of dma_buffer[].

Fixes: 5e9a97b1 ("i2c: ismt: Adding support for I2C_SMBUS_BLOCK_PROC_CALL")
Reported-and-tested-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Commit 31a088b6 ("sparc: add asm/stat.h to UAPI compile-test
coverage") converted as follows:

  uid_t  -->  __kernel_uid_t
  gid_t  -->  __kernel_gid_t

It changed the field widths of struct stat because Sparc uses 16-bits for
___kernel_{uid,gid}_t as in arch/sparc/include/uapi/asm/posix_types.h.

The safe replacements across all architectures are:

  uid_t  -->  __kernel_uid32_t
  gid_t  -->  __kernel_gid32_t

as defined in include/linux/types.h.

A similar issue was reported for the android binder. [1]

[1]: https://lore.kernel.org/all/20220601010017.2639048-1-cmllamas@google.com/

Fixes: 31a088b6 ("sparc: add asm/stat.h to UAPI compile-test coverage")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Commit c01013a2 ("powerpc: add asm/stat.h to UAPI compile-test
coverage") converted as follows:

  uid_t  -->  __kernel_uid_t
  gid_t  -->  __kernel_gid_t

The bit width of __kernel_{uid,gid}_t is 16 or 32-bits depending on
architectures.

PPC uses 32-bits for them as in include/uapi/asm-generic/posix_types.h,
so the previous conversion is probably fine, but let's stick to the
arch-independent conversion just in case.

The safe replacements across all architectures are:

  uid_t  -->  __kernel_uid32_t
  gid_t  -->  __kernel_gid32_t

as defined in include/linux/types.h.

A similar issue was reported for the android binder. [1]

[1]: https://lore.kernel.org/all/20220601010017.2639048-1-cmllamas@google.com/

Fixes: c01013a2 ("powerpc: add asm/stat.h to UAPI compile-test coverage")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Commit 8c1a381a ("mips: add asm/stat.h to UAPI compile-test
coverage") converted as follows:

  uid_t  -->  __kernel_uid_t
  gid_t  -->  __kernel_gid_t

The bit width of __kernel_{uid,gid}_t is 16 or 32-bits depending on
architectures.

MIPS uses 32-bits for them as in include/uapi/asm-generic/posix_types.h,
so the previous conversion is probably fine, but let's stick to the
arch-independent conversion just in case.

The safe replacements across all architectures are:

  uid_t  -->  __kernel_uid32_t
  gid_t  -->  __kernel_gid32_t

as defined in include/linux/types.h.

A similar issue was reported for the android binder. [1]

[1]: https://lore.kernel.org/all/20220601010017.2639048-1-cmllamas@google.com/

Fixes: 8c1a381a ("mips: add asm/stat.h to UAPI compile-test coverage")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Global `-Warray-bounds` enablement revealed some problems, one of
which is the way we define and use AQC rules messages.
In fact, they have a shared header, followed by the actual message,
which can be of one of several different formats. So it is
straightforward enough to define that header as a separate struct
and then embed it into message structures as needed, but currently
all the formats reside in one union coupled with the header. Then,
the code allocates only the memory needed for a particular message
format, leaving the union potentially incomplete.
There are no actual reads or writes beyond the end of an allocated
chunk, but at the same time, the whole implementation is fragile and
backed by an equilibrium rather than strong type and memory checks.

Define the structures the other way around: one for the common
header and the rest for the actual formats with the header embedded.
There are no places where several union members would be used at the
same time anyway. This allows to use proper struct_size() and let
the compiler know what is going to be done.
Finally, unsilence `-Warray-bounds` back for ice_switch.c.

Other little things worth mentioning:
* &ice_sw_rule_vsi_list_query is not used anywhere, remove it. It's
  weird anyway to talk to hardware with purely kernel types
  (bitmaps);
* expand the ICE_SW_RULE_*_SIZE() macros to pass a structure
  variable name to struct_size() to let it do strict typechecking;
* rename ice_sw_rule_lkup_rx_tx::hdr to ::hdr_data to keep ::hdr
  for the header structure to have the same name for it constistenly
  everywhere;
* drop the duplicate of %ICE_SW_RULE_RX_TX_NO_HDR_SIZE residing in
  ice_switch.h.

Fixes: 9daf8208 ("ice: Add support for switch filter programming")
Fixes: 66486d89 ("ice: replace single-element array used for C struct hack")
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Acked-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220601105924.2841410-1-alexandr.lobakin@intel.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

NFDK firmware supports 48-bit dma addressing and
parses 16 high bits of dma addresses.

In nfp_nfdk_tx_desc, dma related structure and tso
related structure are union. When "mss" be filled
with nonzero value due to enable tso, the memory used
by "padding" may be also filled. Then, firmware may
parse wrong dma addresses which causes TX watchdog
timeout problem.

This patch removes padding and unifies the dma_addr_hi
bits with the one in firmware. nfp_nfdk_tx_desc_set_dma_addr
is also added to match this change.

Fixes: c10d12e3 ("nfp: add support for NFDK data path")
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220601083449.50556-1-simon.horman@corigine.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

There are session cleanup problems in ax25_release() and
ax25_disconnect(). If we setup a session and then disconnect,
the disconnected session is still in "LISTENING" state that
is shown below.

Active AX.25 sockets
Dest       Source     Device  State        Vr/Vs    Send-Q  Recv-Q
DL9SAU-4   DL9SAU-3   ???     LISTENING    000/000  0       0
DL9SAU-3   DL9SAU-4   ???     LISTENING    000/000  0       0

The first reason is caused by del_timer_sync() in ax25_release().
The timers of ax25 are used for correct session cleanup. If we use
ax25_release() to close ax25 sessions and ax25_dev is not null,
the del_timer_sync() functions in ax25_release() will execute.
As a result, the sessions could not be cleaned up correctly,
because the timers have stopped.

In order to solve this problem, this patch adds a device_up flag
in ax25_dev in order to judge whether the device is up. If there
are sessions to be cleaned up, the del_timer_sync() in
ax25_release() will not execute. What's more, we add ax25_cb_del()
in ax25_kill_by_device(), because the timers have been stopped
and there are no functions that could delete ax25_cb if we do not
call ax25_release(). Finally, we reorder the position of
ax25_list_lock in ax25_cb_del() in order to synchronize among
different functions that call ax25_cb_del().

The second reason is caused by improper check in ax25_disconnect().
The incoming ax25 sessions which ax25->sk is null will close
heartbeat timer, because the check "if(!ax25->sk || ..)" is
satisfied. As a result, the session could not be cleaned up properly.

In order to solve this problem, this patch changes the improper
check to "if(ax25->sk && ..)" in ax25_disconnect().

What`s more, the ax25_disconnect() may be called twice, which is
not necessary. For example, ax25_kill_by_device() calls
ax25_disconnect() and sets ax25->state to AX25_STATE_0, but
ax25_release() calls ax25_disconnect() again.

In order to solve this problem, this patch add a check in
ax25_release(). If the flag of ax25->sk equals to SOCK_DEAD,
the ax25_disconnect() in ax25_release() should not be executed.

Fixes: 82e31755 ("ax25: Fix UAF bugs in ax25 timers")
Fixes: 8a367e74 ("ax25: Fix segfault after sock connection timeout")
Reported-and-tested-by: Thomas Osterried <thomas@osterried.de>
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20220530152158.108619-1-duoming@zju.edu.cnSigned-off-by: Paolo Abeni <pabeni@redhat.com>

A rare BUG_ON triggered in assoc_array_gc:

    [3430308.818153] kernel BUG at lib/assoc_array.c:1609!

Which corresponded to the statement currently at line 1593 upstream:

    BUG_ON(assoc_array_ptr_is_meta(p));

Using the data from the core dump, I was able to generate a userspace
reproducer[1] and determine the cause of the bug.

[1]: https://github.com/brenns10/kernel_stuff/tree/master/assoc_array_gc

After running the iterator on the entire branch, an internal tree node
looked like the following:

    NODE (nr_leaves_on_branch: 3)
      SLOT [0] NODE (2 leaves)
      SLOT [1] NODE (1 leaf)
      SLOT [2..f] NODE (empty)

In the userspace reproducer, the pr_devel output when compressing this
node was:

    -- compress node 0x5607cc089380 --
    free=0, leaves=0
    [0] retain node 2/1 [nx 0]
    [1] fold node 1/1 [nx 0]
    [2] fold node 0/1 [nx 2]
    [3] fold node 0/2 [nx 2]
    [4] fold node 0/3 [nx 2]
    [5] fold node 0/4 [nx 2]
    [6] fold node 0/5 [nx 2]
    [7] fold node 0/6 [nx 2]
    [8] fold node 0/7 [nx 2]
    [9] fold node 0/8 [nx 2]
    [10] fold node 0/9 [nx 2]
    [11] fold node 0/10 [nx 2]
    [12] fold node 0/11 [nx 2]
    [13] fold node 0/12 [nx 2]
    [14] fold node 0/13 [nx 2]
    [15] fold node 0/14 [nx 2]
    after: 3

At slot 0, an internal node with 2 leaves could not be folded into the
node, because there was only one available slot (slot 0). Thus, the
internal node was retained. At slot 1, the node had one leaf, and was
able to be folded in successfully. The remaining nodes had no leaves,
and so were removed. By the end of the compression stage, there were 14
free slots, and only 3 leaf nodes. The tree was ascended and then its
parent node was compressed. When this node was seen, it could not be
folded, due to the internal node it contained.

The invariant for compression in this function is: whenever
nr_leaves_on_branch < ASSOC_ARRAY_FAN_OUT, the node should contain all
leaf nodes. The compression step currently cannot guarantee this, given
the corner case shown above.

To fix this issue, retry compression whenever we have retained a node,
and yet nr_leaves_on_branch < ASSOC_ARRAY_FAN_OUT. This second
compression will then allow the node in slot 1 to be folded in,
satisfying the invariant. Below is the output of the reproducer once the
fix is applied:

    -- compress node 0x560e9c562380 --
    free=0, leaves=0
    [0] retain node 2/1 [nx 0]
    [1] fold node 1/1 [nx 0]
    [2] fold node 0/1 [nx 2]
    [3] fold node 0/2 [nx 2]
    [4] fold node 0/3 [nx 2]
    [5] fold node 0/4 [nx 2]
    [6] fold node 0/5 [nx 2]
    [7] fold node 0/6 [nx 2]
    [8] fold node 0/7 [nx 2]
    [9] fold node 0/8 [nx 2]
    [10] fold node 0/9 [nx 2]
    [11] fold node 0/10 [nx 2]
    [12] fold node 0/11 [nx 2]
    [13] fold node 0/12 [nx 2]
    [14] fold node 0/13 [nx 2]
    [15] fold node 0/14 [nx 2]
    internal nodes remain despite enough space, retrying
    -- compress node 0x560e9c562380 --
    free=14, leaves=1
    [0] fold node 2/15 [nx 0]
    after: 3

Changes
=======
DH:
 - Use false instead of 0.
 - Reorder the inserted lines in a couple of places to put retained before
   next_slot.

ver #2)
 - Fix typo in pr_devel, correct comparison to "<="

Fixes: 3cb98950 ("Add a generic associative array implementation.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Andrew Morton <akpm@linux-foundation.org>
cc: keyrings@vger.kernel.org
Link: https://lore.kernel.org/r/20220511225517.407935-1-stephen.s.brennan@oracle.com/ # v1
Link: https://lore.kernel.org/r/20220512215045.489140-1-stephen.s.brennan@oracle.com/ # v2
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Adding support for Cinterion device MV31 with Qualcomm
new baseline. Use different PIDs to separate it from
previous base line products.
All interfaces settings keep same as previous.

T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  7 Spd=480 MxCh= 0
D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1e2d ProdID=00b9 Rev=04.14
S:  Manufacturer=Cinterion
S:  Product=Cinterion PID 0x00B9 USB Mobile Broadband
S:  SerialNumber=90418e79
C:  #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=50 Driver=qmi_wwan
I:  If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
Signed-off-by: Slark Xiao <slark_xiao@163.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Link: https://lore.kernel.org/r/20220601040531.6016-1-slark_xiao@163.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Saeed Mahameed says:

====================
mlx5 fixes 2022-05-31

This series provides bug fixes to mlx5 driver.
Please pull and let me know if there is any problem.

* tag 'mlx5-fixes-2022-05-31' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5: Fix mlx5_get_next_dev() peer device matching
  net/mlx5e: Update netdev features after changing XDP state
  net/mlx5: correct ECE offset in query qp output
  net/mlx5e: Disable softirq in mlx5e_activate_rq to avoid race condition
  net/mlx5: CT: Fix header-rewrite re-use for tupels
  net/mlx5e: TC NIC mode, fix tc chains miss table
  net/mlx5: Don't use already freed action pointer
====================

Link: https://lore.kernel.org/r/20220531205447.99236-1-saeed@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Íñigo Huguet says:

====================
sfc/siena: fix some efx_separate_tx_channels errors

Trying to load sfc driver with modparam efx_separate_tx_channels=1
resulted in errors during initialization and not being able to use the
NIC. This patches fix a few bugs and make it work again.

This has been already done for sfc, do it also for sfc_siena.
====================

Link: https://lore.kernel.org/r/20220601063603.15362-1-ihuguet@redhat.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

tx_channel_offset is calculated in efx_allocate_msix_channels, but it is
also calculated again in efx_set_channels because it was originally done
there, and when efx_allocate_msix_channels was introduced it was
forgotten to be removed from efx_set_channels.

Moreover, the old calculation is wrong when using
efx_separate_tx_channels because now we can have XDP channels after the
TX channels, so n_channels - n_tx_channels doesn't point to the first TX
channel.

Remove the old calculation from efx_set_channels, and add the
initialization of this variable if MSI or legacy interrupts are used,
next to the initialization of the rest of the related variables, where
it was missing.

This has been already done for sfc, do it also for sfc_siena.

Fixes: 3990a8ff ("sfc: allocate channels for XDP tx queues")
Reported-by: Tianhao Zhao <tizhao@redhat.com>
Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Normally, all channels have RX and TX queues, but this is not true if
modparam efx_separate_tx_channels=1 is used. In that cases, some
channels only have RX queues and others only TX queues (or more
preciselly, they have them allocated, but not initialized).

Fix efx_channel_has_tx_queues to return the correct value for this case
too.

This has been already done for sfc, do it also for sfc_siena.

Messages shown at probe time before the fix:
 sfc 0000:03:00.0 ens6f0np0: MC command 0x82 inlen 544 failed rc=-22 (raw=0) arg=0
 ------------[ cut here ]------------
 netdevice: ens6f0np0: failed to initialise TXQ -1
 WARNING: CPU: 1 PID: 626 at drivers/net/ethernet/sfc/ef10.c:2393 efx_ef10_tx_init+0x201/0x300 [sfc]
 [...] stripped
 RIP: 0010:efx_ef10_tx_init+0x201/0x300 [sfc]
 [...] stripped
 Call Trace:
  efx_init_tx_queue+0xaa/0xf0 [sfc]
  efx_start_channels+0x49/0x120 [sfc]
  efx_start_all+0x1f8/0x430 [sfc]
  efx_net_open+0x5a/0xe0 [sfc]
  __dev_open+0xd0/0x190
  __dev_change_flags+0x1b3/0x220
  dev_change_flags+0x21/0x60
 [...] stripped

Messages shown at remove time before the fix:
 sfc 0000:03:00.0 ens6f0np0: failed to flush 10 queues
 sfc 0000:03:00.0 ens6f0np0: failed to flush queues

Fixes: 8700aff0 ("sfc: fix channel allocation with brute force")
Reported-by: Tianhao Zhao <tizhao@redhat.com>
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Tested-by: Íñigo Huguet <ihuguet@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Steffen Klassert says:

====================
ipsec 2022-06-01

1) Revert "net: af_key: add check for pfkey_broadcast in function pfkey_process"
   From Michal Kubecek.

2) Don't set IPv4 DF bit when encapsulating IPv6 frames below 1280 bytes.
   From Maciej Żenczykowski.

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
  xfrm: do not set IPv4 DF flag when encapsulating IPv6 frames <= 1280 bytes.
  Revert "net: af_key: add check for pfkey_broadcast in function pfkey_process"
====================

Link: https://lore.kernel.org/r/20220601103349.2297361-1-steffen.klassert@secunet.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Kalle Valo says:

====================
wireless fixes for v5.19

First set of fixes for v5.19. Build fixes for iwlwifi and libertas, a
scheduling while atomic fix for rtw88 and use-after-free fix for
mac80211.

* tag 'wireless-2022-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  wifi: mac80211: fix use-after-free in chanctx code
  wifi: rtw88: add a work to correct atomic scheduling warning of ::set_tim
  wifi: iwlwifi: pcie: rename CAUSE macro
  wifi: libertas: use variable-size data in assoc req/resp cmd
====================

Link: https://lore.kernel.org/r/20220601110741.90B28C385A5@smtp.kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Pull more xfs updates from Dave Chinner:
 "This update is largely bug fixes and cleanups for all the code merged
  in the first pull request. The majority of them are to the new logged
  attribute code, but there are also a couple of fixes for other log
  recovery and memory leaks that have recently been found.

  Summary:

   - fix refcount leak in xfs_ifree()

   - fix xfs_buf_cancel structure leaks in log recovery

   - fix dquot leak after failed quota check

   - fix a couple of problematic ASSERTS

   - fix small aim7 perf regression in from new btree sibling validation

   - clean up log incompat feature marking for new logged attribute
     feature

   - disallow logged attributes on legacy V4 filesystem formats.

   - fix da state leak when freeing attr intents

   - improve validation of the attr log items in recovery

   - use slab caches for commonly used attr structures

   - fix leaks of attr name/value buffer and reduce copying overhead
     during intent logging

   - remove some dead debug code from log recovery"

* tag 'xfs-5.19-for-linus-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (33 commits)
  xfs: fix xfs_ifree() error handling to not leak perag ref
  xfs: move xfs_attr_use_log_assist usage out of libxfs
  xfs: move xfs_attr_use_log_assist out of xfs_log.c
  xfs: warn about LARP once per mount
  xfs: implement per-mount warnings for scrub and shrink usage
  xfs: don't log every time we clear the log incompat flags
  xfs: convert buf_cancel_table allocation to kmalloc_array
  xfs: don't leak xfs_buf_cancel structures when recovery fails
  xfs: refactor buffer cancellation table allocation
  xfs: don't leak btree cursor when insrec fails after a split
  xfs: purge dquots after inode walk fails during quotacheck
  xfs: assert in xfs_btree_del_cursor should take into account error
  xfs: don't assert fail on perag references on teardown
  xfs: avoid unnecessary runtime sibling pointer endian conversions
  xfs: share xattr name and value buffers when logging xattr updates
  xfs: do not use logged xattr updates on V4 filesystems
  xfs: Remove duplicate include
  xfs: reduce IOCB_NOWAIT judgment for retry exclusive unaligned DIO
  xfs: Remove dead code
  xfs: fix typo in comment
  ...

Use plain 255 instead, which also avoid introducing an additional header
dependency on <linux/types.h>

Fixes: 26859240 ("txhash: Add socket option to control TX hash rethink behavior")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Link: https://lore.kernel.org/r/20220531094345.13801-1-tklauser@distanz.chSigned-off-by: Jakub Kicinski <kuba@kernel.org>

In commit a670ff57 ("drm/msm/dpu: always use mdp device to scale
bandwidth") we fully moved interconnect stuff to the DPU driver. This
had no change for sc7180 but _did_ have an impact for other SoCs. It
made them match the sc7180 scheme.

Unfortunately, the sc7180 scheme seems like it was a bit broken.
Specifically the interconnect needs to be on for more than just the
DPU driver's AXI bus. In the very least it also needs to be on for the
DSI driver's AXI bus. This can be seen fairly easily by doing this on
a ChromeOS sc7180-trogdor class device:

  set_power_policy --ac_screen_dim_delay=5 --ac_screen_off_delay=10
  sleep 10
  cd /sys/bus/platform/devices/ae94000.dsi/power
  echo on > control

When you do that, you'll get a warning splat in the logs about
"gcc_disp_hf_axi_clk status stuck at 'off'".

One could argue that perhaps what I have done above is "illegal" and
that it can't happen naturally in the system because in normal system
usage the DPU is pretty much always on when DSI is on. That being
said:
* In official ChromeOS builds (admittedly a 5.4 kernel with backports)
  we have seen that splat at bootup.
* Even though we don't use "autosuspend" for these components, we
  don't use the "put_sync" variants. Thus plausibly the DSI could stay
  "runtime enabled" past when the DPU is enabled. Techncially we
  shouldn't do that if the DPU's suspend ends up yanking our clock.

Let's change things such that the "bare minimum" request for the
interconnect happens in the mdss driver again. That means that all of
the children can assume that the interconnect is on at the minimum
bandwidth. We'll then let the DPU request the higher amount that it
wants.

It should be noted that this isn't as hacky of a solution as it might
initially appear. Specifically:
* Since MDSS and DPU individually get their own references to the
  interconnect then the framework will actually handle aggregating
  them. The two drivers are _not_ clobbering each other.
* When the Qualcomm interconnect driver aggregates it takes the max of
  all the peaks. Thus having MDSS request a peak, as we're doing here,
  won't actually change the total interconnect bandwidth (it won't be
  added to the request for the DPU). This perhaps explains why the
  "average" requested in MDSS was historically 0 since that one
  _would_ be added in.

NOTE also that in the downstream ChromeOS 5.4 and 5.15 kernels, we're
also seeing some RPMH hangs that are addressed by this fix. These
hangs are showing up in the field and on _some_ devices with enough
stress testing of suspend/resume. Specifically right at suspend time
with a stack crawl that looks like this (from chromeos-5.15 tree):
  rpmh_write_batch+0x19c/0x240
  qcom_icc_bcm_voter_commit+0x210/0x420
  qcom_icc_set+0x28/0x38
  apply_constraints+0x70/0xa4
  icc_set_bw+0x150/0x24c
  dpu_runtime_resume+0x50/0x1c4
  pm_generic_runtime_resume+0x30/0x44
  __genpd_runtime_resume+0x68/0x7c
  genpd_runtime_resume+0x12c/0x20c
  __rpm_callback+0x98/0x138
  rpm_callback+0x30/0x88
  rpm_resume+0x370/0x4a0
  __pm_runtime_resume+0x80/0xb0
  dpu_kms_enable_commit+0x24/0x30
  msm_atomic_commit_tail+0x12c/0x630
  commit_tail+0xac/0x150
  drm_atomic_helper_commit+0x114/0x11c
  drm_atomic_commit+0x68/0x78
  drm_atomic_helper_disable_all+0x158/0x1c8
  drm_atomic_helper_suspend+0xc0/0x1c0
  drm_mode_config_helper_suspend+0x2c/0x60
  msm_pm_prepare+0x2c/0x40
  pm_generic_prepare+0x30/0x44
  genpd_prepare+0x80/0xd0
  device_prepare+0x78/0x17c
  dpm_prepare+0xb0/0x384
  dpm_suspend_start+0x34/0xc0

We don't completely understand all the mechanisms in play, but the
hang seemed to come and go with random factors. It's not terribly
surprising that the hang is gone after this patch since the line of
code that was failing is no longer present in the kernel.

Fixes: a670ff57 ("drm/msm/dpu: always use mdp device to scale bandwidth")
Fixes: c33b7c03 ("drm/msm/dpu: add support for clk and bw scaling for display")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Tested-by: Jessica Zhang <quic_jesszhan@quicinc.com> # RB3 (sdm845) and
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/487884/
Link: https://lore.kernel.org/r/20220531160059.v2.1.Ie7f6d4bf8cce28131da31a43354727e417cae98d@changeidSigned-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>