Commit Graph

58450 Commits

Author SHA1 Message Date
Vladimir Oltean
3083623948 docs: net: dsa: remove port_bridge_tx_fwd_offload
We've changed the API through which we can offload the bridge TX
forwarding process. Update the documentation in light of the removal of
2 DSA switch ops.

Fixes: b079922ba2 ("net: dsa: add a "tx_fwd_offload" argument to ->port_bridge_join")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18 12:44:37 +01:00
Vladimir Oltean
0cb8682ebf docs: net: dsa: document port_fast_age
The provided information about FDB flushing is not really up to date.
The DSA core automatically calls port_fast_age() when necessary, and
drivers should just implement that rather than hooking it to
port_bridge_leave, port_stp_state_set and others.

Fixes: 732f794c1b ("net: dsa: add port fast ageing")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18 12:44:37 +01:00
Vladimir Oltean
3c87237ecd docs: net: dsa: document port_setup and port_teardown
These methods were added without being documented, fix that.

Fixes: fd292c189a ("net: dsa: tear down devlink port regions when tearing down the devlink port on error")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18 12:44:37 +01:00
Vladimir Oltean
b763f50dc1 docs: net: dsa: document the teardown method
A teardown method was added to dsa_switch_ops without being documented.
Do so now.

Fixes: 5e3f847a02 ("net: dsa: Add teardown callback for drivers")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18 12:44:37 +01:00
Vladimir Oltean
d6a0336add docs: net: dsa: document change_tag_protocol
Support for changing the tagging protocol was added without this
operation being documented; do so now.

Fixes: 53da0ebaad ("net: dsa: allow changing the tag protocol via the "tagging" device attribute")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18 12:44:37 +01:00
Vladimir Oltean
c56313a42a docs: net: dsa: add more info about the other arguments to get_tag_protocol
Changes were made to the prototype of get_tag_protocol without
describing at a high level what they are about. Update the documentation
to explain that.

Fixes: 5ed4e3eb02 ("net: dsa: Pass a port to get_tag_protocol()")
Fixes: 4d776482ec ("net: dsa: Get information about stacked DSA protocol")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18 12:44:37 +01:00
Vladimir Oltean
c3f0e84d10 docs: net: dsa: rename tag_protocol to get_tag_protocol
Since the blamed commit, the enum was turned into a function pointer and
also renamed. Update the documentation.

Fixes: 7b314362a2 ("net: dsa: Allow the DSA driver to indicate the tag protocol")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18 12:44:36 +01:00
Vladimir Oltean
54367831c5 docs: net: dsa: document the shutdown behavior
Document the changes that took place in the DSA core in the blamed
commit.

Fixes: 0650bf52b3 ("net: dsa: be compatible with masters which unregister on shutdown")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18 12:44:36 +01:00
Vladimir Oltean
19b3b13c93 docs: net: dsa: update probing documentation
Since the blamed commit we don't have register_switch_driver() and
unregister_switch_driver() anymore. Additionally, the expected
dsa_register_switch() and dsa_unregister_switch() calls aren't
documented.

Update the probing section with the details of how things are currently
done.

Fixes: 93e86b3bc8 ("net: dsa: Remove legacy probing support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18 12:44:36 +01:00
Linus Torvalds
9bd572ec7a Merge tag 'net-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter, bpf and wireless.

  Still no major regressions, the release continues to be calm. An
  uptick of fixes this time around due to trivial data race fixes and
  patches flowing down from subtrees.

  There has been a few driver fixes (particularly a few fixes for false
  positives due to 66e4c8d950 which went into -next in May!) that make
  me worry the wide testing is not exactly fully through.

  So "calm" but not "let's just cut the final ASAP" vibes over here.

  Current release - regressions:

   - wifi: rtw88: fix write to const table of channel parameters

  Current release - new code bugs:

   - mac80211: add gfp_t arg to ieeee80211_obss_color_collision_notify

   - mlx5:
      - TC, allow offload from uplink to other PF's VF
      - Lag, decouple FDB selection and shared FDB
      - Lag, correct get the port select mode str

   - bnxt_en: fix and simplify XDP transmit path

   - r8152: fix accessing unset transport header

  Previous releases - regressions:

   - conntrack: fix crash due to confirmed bit load reordering (after
     atomic -> refcount conversion)

   - stmmac: dwc-qos: disable split header for Tegra194

  Previous releases - always broken:

   - mlx5e: ring the TX doorbell on DMA errors

   - bpf: make sure mac_header was set before using it

   - mac80211: do not wake queues on a vif that is being stopped

   - mac80211: fix queue selection for mesh/OCB interfaces

   - ip: fix dflt addr selection for connected nexthop

   - seg6: fix skb checksums for SRH encapsulation/insertion

   - xdp: fix spurious packet loss in generic XDP TX path

   - bunch of sysctl data race fixes

   - nf_log: incorrect offset to network header

  Misc:

   - bpf: add flags arg to bpf_dynptr_read and bpf_dynptr_write APIs"

* tag 'net-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (87 commits)
  nfp: flower: configure tunnel neighbour on cmsg rx
  net/tls: Check for errors in tls_device_init
  MAINTAINERS: Add an additional maintainer to the AMD XGBE driver
  xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue
  selftests/net: test nexthop without gw
  ip: fix dflt addr selection for connected nexthop
  net: atlantic: remove aq_nic_deinit() when resume
  net: atlantic: remove deep parameter on suspend/resume functions
  sfc: fix kernel panic when creating VF
  seg6: bpf: fix skb checksum in bpf_push_seg6_encap()
  seg6: fix skb checksum in SRv6 End.B6 and End.B6.Encaps behaviors
  seg6: fix skb checksum evaluation in SRH encapsulation/insertion
  sfc: fix use after free when disabling sriov
  net: sunhme: output link status with a single print.
  r8152: fix accessing unset transport header
  net: stmmac: fix leaks in probe
  net: ftgmac100: Hold reference returned by of_get_child_by_name()
  nexthop: Fix data-races around nexthop_compat_mode.
  ipv4: Fix data-races around sysctl_ip_dynaddr.
  tcp: Fix a data-race around sysctl_tcp_ecn_fallback.
  ...
2022-07-14 12:48:07 -07:00
Linus Torvalds
c4634a3c7d Merge tag 'sound-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
 "Hopefully the last one for 5.19. This became bigger than wished, but
  all changes are pretty device-specific small fixes, which look less
  worrisome.

  The majority of changes are about various ASoC fixes, while the usual
  HD-audio quirks are included as well"

* tag 'sound-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (28 commits)
  ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop
  ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221
  ALSA: hda/realtek: fix mute/micmute LEDs for HP machines
  ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671
  ALSA: hda - Add fixup for Dell Latitidue E5430
  ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model
  ALSA: hda/realtek: Fix headset mic for Acer SF313-51
  ASoC: Intel: Skylake: Correct the handling of fmt_config flexible array
  ASoC: Intel: Skylake: Correct the ssp rate discovery in skl_get_ssp_clks()
  ASoC: rt5640: Fix the wrong state of JD1 and JD2
  ASoC: Intel: sof_rt5682: fix out-of-bounds array access
  ASoC: qdsp6: fix potential memory leak in q6apm_get_audioreach_graph()
  ASoC: tas2764: Fix amp gain register offset & default
  ASoC: tas2764: Correct playback volume range
  ASoC: tas2764: Fix and extend FSYNC polarity handling
  ASoC: tas2764: Add post reset delays
  ASoC: dt-bindings: Fix description for msm8916
  ASoC: doc: Capitalize RESET line name
  ASoC: arizona: Update arizona_aif_cfg_changed to use RX_BCLK_RATE
  ASoC: cs47l92: Fix event generation for OUT1 demux
  ...
2022-07-14 11:34:16 -07:00
David S. Miller
67de8acdd3 Merge tag 'wireless-2022-07-13' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:

====================
A small set of fixes for
 * queue selection in mesh/ocb
 * queue handling on interface stop
 * hwsim virtio device vs. some other virtio changes
 * dt-bindings email addresses
 * color collision memory allocation
 * a const variable in rtw88
 * shared SKB transmit in the ethernet format path
 * P2P client port authorization
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-13 14:27:38 +01:00
Kuniyuki Iwashima
e49e4aff7e ipv4: Fix data-races around sysctl_ip_dynaddr.
While reading sysctl_ip_dynaddr, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-13 12:56:49 +01:00
Linus Torvalds
72a8e05d4f Merge tag 'ovl-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fix from Miklos Szeredi:
 "Add a temporary fix for posix acls on idmapped mounts introduced in
  this cycle. A proper fix will be added in the next cycle"

* tag 'ovl-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: turn off SB_POSIXACL with idmapped layers temporarily
2022-07-12 08:59:35 -07:00
Linus Torvalds
ce114c8668 Merge tag 'x86_bugs_retbleed' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 retbleed fixes from Borislav Petkov:
 "Just when you thought that all the speculation bugs were addressed and
  solved and the nightmare is complete, here's the next one: speculating
  after RET instructions and leaking privileged information using the
  now pretty much classical covert channels.

  It is called RETBleed and the mitigation effort and controlling
  functionality has been modelled similar to what already existing
  mitigations provide"

* tag 'x86_bugs_retbleed' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits)
  x86/speculation: Disable RRSBA behavior
  x86/kexec: Disable RET on kexec
  x86/bugs: Do not enable IBPB-on-entry when IBPB is not supported
  x86/entry: Move PUSH_AND_CLEAR_REGS() back into error_entry
  x86/bugs: Add Cannon lake to RETBleed affected CPU list
  x86/retbleed: Add fine grained Kconfig knobs
  x86/cpu/amd: Enumerate BTC_NO
  x86/common: Stamp out the stepping madness
  KVM: VMX: Prevent RSB underflow before vmenter
  x86/speculation: Fill RSB on vmexit for IBRS
  KVM: VMX: Fix IBRS handling after vmexit
  KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS
  KVM: VMX: Convert launched argument to flags
  KVM: VMX: Flatten __vmx_vcpu_run()
  objtool: Re-add UNWIND_HINT_{SAVE_RESTORE}
  x86/speculation: Remove x86_spec_ctrl_mask
  x86/speculation: Use cached host SPEC_CTRL value for guest entry/exit
  x86/speculation: Fix SPEC_CTRL write on SMT state change
  x86/speculation: Fix firmware entry SPEC_CTRL handling
  x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n
  ...
2022-07-11 18:15:25 -07:00
Linus Torvalds
b5374396e5 Merge tag 'modules-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull module fixes from Luis Chamberlain:
 "Although most of the move of code in in v5.19-rc1 should have not
  introduced a regression patch review on one of the file changes
  captured a checkpatch warning which advised to use strscpy() and it
  caused a buffer overflow when an incorrect length is passed.

  Another change which checkpatch complained about was an odd RCU usage,
  but that was properly addressed in a separate patch to the move by
  Aaron. That caused a regression with PREEMPT_RT=y due to an unbounded
  latency.

  This series fixes both and adjusts documentation which we forgot to do
  for the move"

* tag 'modules-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
  module: kallsyms: Ensure preemption in add_kallsyms() with PREEMPT_RT
  doc: module: update file references
  module: Fix "warning: variable 'exit' set but not used"
  module: Fix selfAssignment cppcheck warning
  modules: Fix corruption of /proc/kallsyms
2022-07-11 12:39:12 -07:00
Linus Torvalds
952c53cd35 Merge tag 'dmaengine-fix-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
 "One core fix for DMA_INTERRUPT and rest driver fixes.

  Core:

   - Revert verification of DMA_INTERRUPT capability as that was
     incorrect

  Bunch of driver fixes for:

   - ti: refcount and put_device leak

   - qcom_bam: runtime pm overflow

   - idxd: force wq context cleanup and call idxd_enable_system_pasid()
     on success

   - dw-axi-dmac: RMW on channel suspend register

   - imx-sdma: restart cyclic channel when enabled

   - at_xdma: error handling for at_xdmac_alloc_desc

   - pl330: lockdep warning

   - lgm: error handling path in probe

   - allwinner: Fix min/max typo in binding"

* tag 'dmaengine-fix-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
  dt-bindings: dma: allwinner,sun50i-a64-dma: Fix min/max typo
  dmaengine: lgm: Fix an error handling path in intel_ldma_probe()
  dmaengine: pl330: Fix lockdep warning about non-static key
  dmaengine: idxd: Only call idxd_enable_system_pasid() if succeeded in enabling SVA feature
  dmaengine: at_xdma: handle errors of at_xdmac_alloc_desc() correctly
  dmaengine: imx-sdma: only restart cyclic channel when enabled
  dmaengine: dw-axi-dmac: Fix RMW on channel suspend register
  dmaengine: idxd: force wq context cleanup on device disable path
  dmaengine: qcom: bam_dma: fix runtime PM underflow
  dmaengine: imx-sdma: Allow imx8m for imx7 FW revs
  dmaengine: Revert "dmaengine: add verification of DMA_INTERRUPT capability for dmatest"
  dmaengine: ti: Add missing put_device in ti_dra7_xbar_route_allocate
  dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate
2022-07-10 11:23:01 -07:00
Christian Brauner
4a47c6385b ovl: turn of SB_POSIXACL with idmapped layers temporarily
This cycle we added support for mounting overlayfs on top of idmapped
mounts.  Recently I've started looking into potential corner cases when
trying to add additional tests and I noticed that reporting for POSIX ACLs
is currently wrong when using idmapped layers with overlayfs mounted on top
of it.

I have sent out an patch that fixes this and makes POSIX ACLs work
correctly but the patch is a bit bigger and we're already at -rc5 so I
recommend we simply don't raise SB_POSIXACL when idmapped layers are
used. Then we can fix the VFS part described below for the next merge
window so we can have good exposure in -next.

I'm going to give a rather detailed explanation to both the origin of the
problem and mention the solution so people know what's going on.

Let's assume the user creates the following directory layout and they have
a rootfs /var/lib/lxc/c1/rootfs. The files in this rootfs are owned as you
would expect files on your host system to be owned. For example, ~/.bashrc
for your regular user would be owned by 1000:1000 and /root/.bashrc would
be owned by 0:0. IOW, this is just regular boring filesystem tree on an
ext4 or xfs filesystem.

The user chooses to set POSIX ACLs using the setfacl binary granting the
user with uid 4 read, write, and execute permissions for their .bashrc
file:

        setfacl -m u:4:rwx /var/lib/lxc/c2/rootfs/home/ubuntu/.bashrc

Now they to expose the whole rootfs to a container using an idmapped
mount. So they first create:

        mkdir -pv /vol/contpool/{ctrover,merge,lowermap,overmap}
        mkdir -pv /vol/contpool/ctrover/{over,work}
        chown 10000000:10000000 /vol/contpool/ctrover/{over,work}

The user now creates an idmapped mount for the rootfs:

        mount-idmapped/mount-idmapped --map-mount=b:0:10000000:65536 \
                                      /var/lib/lxc/c2/rootfs \
                                      /vol/contpool/lowermap

This for example makes it so that
/var/lib/lxc/c2/rootfs/home/ubuntu/.bashrc which is owned by uid and gid
1000 as being owned by uid and gid 10001000 at
/vol/contpool/lowermap/home/ubuntu/.bashrc.

Assume the user wants to expose these idmapped mounts through an overlayfs
mount to a container.

       mount -t overlay overlay                      \
             -o lowerdir=/vol/contpool/lowermap,     \
                upperdir=/vol/contpool/overmap/over, \
                workdir=/vol/contpool/overmap/work   \
             /vol/contpool/merge

The user can do this in two ways:

(1) Mount overlayfs in the initial user namespace and expose it to the
    container.

(2) Mount overlayfs on top of the idmapped mounts inside of the container's
    user namespace.

Let's assume the user chooses the (1) option and mounts overlayfs on the
host and then changes into a container which uses the idmapping
0:10000000:65536 which is the same used for the two idmapped mounts.

Now the user tries to retrieve the POSIX ACLs using the getfacl command

        getfacl -n /vol/contpool/lowermap/home/ubuntu/.bashrc

and to their surprise they see:

        # file: vol/contpool/merge/home/ubuntu/.bashrc
        # owner: 1000
        # group: 1000
        user::rw-
        user:4294967295:rwx
        group::r--
        mask::rwx
        other::r--

indicating the uid wasn't correctly translated according to the idmapped
mount. The problem is how we currently translate POSIX ACLs. Let's inspect
the callchain in this example:

        idmapped mount /vol/contpool/merge:      0:10000000:65536
        caller's idmapping:                      0:10000000:65536
        overlayfs idmapping (ofs->creator_cred): 0:0:4k /* initial idmapping */

        sys_getxattr()
        -> path_getxattr()
           -> getxattr()
              -> do_getxattr()
                  |> vfs_getxattr()
                  |  -> __vfs_getxattr()
                  |     -> handler->get == ovl_posix_acl_xattr_get()
                  |        -> ovl_xattr_get()
                  |           -> vfs_getxattr()
                  |              -> __vfs_getxattr()
                  |                 -> handler->get() /* lower filesystem callback */
                  |> posix_acl_fix_xattr_to_user()
                     {
                              4 = make_kuid(&init_user_ns, 4);
                              4 = mapped_kuid_fs(&init_user_ns /* no idmapped mount */, 4);
                              /* FAILURE */
                             -1 = from_kuid(0:10000000:65536 /* caller's idmapping */, 4);
                     }

If the user chooses to use option (2) and mounts overlayfs on top of
idmapped mounts inside the container things don't look that much better:

        idmapped mount /vol/contpool/merge:      0:10000000:65536
        caller's idmapping:                      0:10000000:65536
        overlayfs idmapping (ofs->creator_cred): 0:10000000:65536

        sys_getxattr()
        -> path_getxattr()
           -> getxattr()
              -> do_getxattr()
                  |> vfs_getxattr()
                  |  -> __vfs_getxattr()
                  |     -> handler->get == ovl_posix_acl_xattr_get()
                  |        -> ovl_xattr_get()
                  |           -> vfs_getxattr()
                  |              -> __vfs_getxattr()
                  |                 -> handler->get() /* lower filesystem callback */
                  |> posix_acl_fix_xattr_to_user()
                     {
                              4 = make_kuid(&init_user_ns, 4);
                              4 = mapped_kuid_fs(&init_user_ns, 4);
                              /* FAILURE */
                             -1 = from_kuid(0:10000000:65536 /* caller's idmapping */, 4);
                     }

As is easily seen the problem arises because the idmapping of the lower
mount isn't taken into account as all of this happens in do_gexattr(). But
do_getxattr() is always called on an overlayfs mount and inode and thus
cannot possible take the idmapping of the lower layers into account.

This problem is similar for fscaps but there the translation happens as
part of vfs_getxattr() already. Let's walk through an fscaps overlayfs
callchain:

        setcap 'cap_net_raw+ep' /var/lib/lxc/c2/rootfs/home/ubuntu/.bashrc

The expected outcome here is that we'll receive the cap_net_raw capability
as we are able to map the uid associated with the fscap to 0 within our
container.  IOW, we want to see 0 as the result of the idmapping
translations.

If the user chooses option (1) we get the following callchain for fscaps:

        idmapped mount /vol/contpool/merge:      0:10000000:65536
        caller's idmapping:                      0:10000000:65536
        overlayfs idmapping (ofs->creator_cred): 0:0:4k /* initial idmapping */

        sys_getxattr()
        -> path_getxattr()
           -> getxattr()
              -> do_getxattr()
                   -> vfs_getxattr()
                      -> xattr_getsecurity()
                         -> security_inode_getsecurity()                                       ________________________________
                            -> cap_inode_getsecurity()                                         |                              |
                               {                                                               V                              |
                                        10000000 = make_kuid(0:0:4k /* overlayfs idmapping */, 10000000);                     |
                                        10000000 = mapped_kuid_fs(0:0:4k /* no idmapped mount */, 10000000);                  |
                                               /* Expected result is 0 and thus that we own the fscap. */                     |
                                               0 = from_kuid(0:10000000:65536 /* caller's idmapping */, 10000000);            |
                               }                                                                                              |
                               -> vfs_getxattr_alloc()                                                                        |
                                  -> handler->get == ovl_other_xattr_get()                                                    |
                                     -> vfs_getxattr()                                                                        |
                                        -> xattr_getsecurity()                                                                |
                                           -> security_inode_getsecurity()                                                    |
                                              -> cap_inode_getsecurity()                                                      |
                                                 {                                                                            |
                                                                0 = make_kuid(0:0:4k /* lower s_user_ns */, 0);               |
                                                         10000000 = mapped_kuid_fs(0:10000000:65536 /* idmapped mount */, 0); |
                                                         10000000 = from_kuid(0:0:4k /* overlayfs idmapping */, 10000000);    |
                                                         |____________________________________________________________________|
                                                 }
                                                 -> vfs_getxattr_alloc()
                                                    -> handler->get == /* lower filesystem callback */

And if the user chooses option (2) we get:

        idmapped mount /vol/contpool/merge:      0:10000000:65536
        caller's idmapping:                      0:10000000:65536
        overlayfs idmapping (ofs->creator_cred): 0:10000000:65536

        sys_getxattr()
        -> path_getxattr()
           -> getxattr()
              -> do_getxattr()
                   -> vfs_getxattr()
                      -> xattr_getsecurity()
                         -> security_inode_getsecurity()                                                _______________________________
                            -> cap_inode_getsecurity()                                                  |                             |
                               {                                                                        V                             |
                                       10000000 = make_kuid(0:10000000:65536 /* overlayfs idmapping */, 0);                           |
                                       10000000 = mapped_kuid_fs(0:0:4k /* no idmapped mount */, 10000000);                           |
                                               /* Expected result is 0 and thus that we own the fscap. */                             |
                                              0 = from_kuid(0:10000000:65536 /* caller's idmapping */, 10000000);                     |
                               }                                                                                                      |
                               -> vfs_getxattr_alloc()                                                                                |
                                  -> handler->get == ovl_other_xattr_get()                                                            |
                                    |-> vfs_getxattr()                                                                                |
                                        -> xattr_getsecurity()                                                                        |
                                           -> security_inode_getsecurity()                                                            |
                                              -> cap_inode_getsecurity()                                                              |
                                                 {                                                                                    |
                                                                 0 = make_kuid(0:0:4k /* lower s_user_ns */, 0);                      |
                                                          10000000 = mapped_kuid_fs(0:10000000:65536 /* idmapped mount */, 0);        |
                                                                 0 = from_kuid(0:10000000:65536 /* overlayfs idmapping */, 10000000); |
                                                                 |____________________________________________________________________|
                                                 }
                                                 -> vfs_getxattr_alloc()
                                                    -> handler->get == /* lower filesystem callback */

We can see how the translation happens correctly in those cases as the
conversion happens within the vfs_getxattr() helper.

For POSIX ACLs we need to do something similar. However, in contrast to
fscaps we cannot apply the fix directly to the kernel internal posix acl
data structure as this would alter the cached values and would also require
a rework of how we currently deal with POSIX ACLs in general which almost
never take the filesystem idmapping into account (the noteable exception
being FUSE but even there the implementation is special) and instead
retrieve the raw values based on the initial idmapping.

The correct values are then generated right before returning to
userspace. The fix for this is to move taking the mount's idmapping into
account directly in vfs_getxattr() instead of having it be part of
posix_acl_fix_xattr_to_user().

To this end we simply move the idmapped mount translation into a separate
step performed in vfs_{g,s}etxattr() instead of in
posix_acl_fix_xattr_{from,to}_user().

To see how this fixes things let's go back to the original example. Assume
the user chose option (1) and mounted overlayfs on top of idmapped mounts
on the host:

        idmapped mount /vol/contpool/merge:      0:10000000:65536
        caller's idmapping:                      0:10000000:65536
        overlayfs idmapping (ofs->creator_cred): 0:0:4k /* initial idmapping */

        sys_getxattr()
        -> path_getxattr()
           -> getxattr()
              -> do_getxattr()
                  |> vfs_getxattr()
                  |  |> __vfs_getxattr()
                  |  |  -> handler->get == ovl_posix_acl_xattr_get()
                  |  |     -> ovl_xattr_get()
                  |  |        -> vfs_getxattr()
                  |  |           |> __vfs_getxattr()
                  |  |           |  -> handler->get() /* lower filesystem callback */
                  |  |           |> posix_acl_getxattr_idmapped_mnt()
                  |  |              {
                  |  |                              4 = make_kuid(&init_user_ns, 4);
                  |  |                       10000004 = mapped_kuid_fs(0:10000000:65536 /* lower idmapped mount */, 4);
                  |  |                       10000004 = from_kuid(&init_user_ns, 10000004);
                  |  |                       |_______________________
                  |  |              }                               |
                  |  |                                              |
                  |  |> posix_acl_getxattr_idmapped_mnt()           |
                  |     {                                           |
                  |                                                 V
                  |             10000004 = make_kuid(&init_user_ns, 10000004);
                  |             10000004 = mapped_kuid_fs(&init_user_ns /* no idmapped mount */, 10000004);
                  |             10000004 = from_kuid(&init_user_ns, 10000004);
                  |     }       |_________________________________________________
                  |                                                              |
                  |                                                              |
                  |> posix_acl_fix_xattr_to_user()                               |
                     {                                                           V
                                 10000004 = make_kuid(0:0:4k /* init_user_ns */, 10000004);
                                        /* SUCCESS */
                                        4 = from_kuid(0:10000000:65536 /* caller's idmapping */, 10000004);
                     }

And similarly if the user chooses option (1) and mounted overayfs on top of
idmapped mounts inside the container:

        idmapped mount /vol/contpool/merge:      0:10000000:65536
        caller's idmapping:                      0:10000000:65536
        overlayfs idmapping (ofs->creator_cred): 0:10000000:65536

        sys_getxattr()
        -> path_getxattr()
           -> getxattr()
              -> do_getxattr()
                  |> vfs_getxattr()
                  |  |> __vfs_getxattr()
                  |  |  -> handler->get == ovl_posix_acl_xattr_get()
                  |  |     -> ovl_xattr_get()
                  |  |        -> vfs_getxattr()
                  |  |           |> __vfs_getxattr()
                  |  |           |  -> handler->get() /* lower filesystem callback */
                  |  |           |> posix_acl_getxattr_idmapped_mnt()
                  |  |              {
                  |  |                              4 = make_kuid(&init_user_ns, 4);
                  |  |                       10000004 = mapped_kuid_fs(0:10000000:65536 /* lower idmapped mount */, 4);
                  |  |                       10000004 = from_kuid(&init_user_ns, 10000004);
                  |  |                       |_______________________
                  |  |              }                               |
                  |  |                                              |
                  |  |> posix_acl_getxattr_idmapped_mnt()           |
                  |     {                                           V
                  |             10000004 = make_kuid(&init_user_ns, 10000004);
                  |             10000004 = mapped_kuid_fs(&init_user_ns /* no idmapped mount */, 10000004);
                  |             10000004 = from_kuid(0(&init_user_ns, 10000004);
                  |             |_________________________________________________
                  |     }                                                        |
                  |                                                              |
                  |> posix_acl_fix_xattr_to_user()                               |
                     {                                                           V
                                 10000004 = make_kuid(0:0:4k /* init_user_ns */, 10000004);
                                        /* SUCCESS */
                                        4 = from_kuid(0:10000000:65536 /* caller's idmappings */, 10000004);
                     }

The last remaining problem we need to fix here is ovl_get_acl(). During
ovl_permission() overlayfs will call:

        ovl_permission()
        -> generic_permission()
           -> acl_permission_check()
              -> check_acl()
                 -> get_acl()
                    -> inode->i_op->get_acl() == ovl_get_acl()
                        > get_acl() /* on the underlying filesystem)
                          ->inode->i_op->get_acl() == /*lower filesystem callback */
                 -> posix_acl_permission()

passing through the get_acl request to the underlying filesystem. This will
retrieve the acls stored in the lower filesystem without taking the
idmapping of the underlying mount into account as this would mean altering
the cached values for the lower filesystem. The simple solution is to have
ovl_get_acl() simply duplicate the ACLs, update the values according to the
idmapped mount and return it to acl_permission_check() so it can be used in
posix_acl_permission(). Since overlayfs doesn't cache ACLs they'll be
released right after.

Link: https://github.com/brauner/mount-idmapped/issues/9
Cc: Seth Forshee <sforshee@digitalocean.com>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: linux-unionfs@vger.kernel.org
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Fixes: bc70682a49 ("ovl: support idmapped layers")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2022-07-08 15:48:31 +02:00
Kuniyuki Iwashima
dd44f04b92 cipso: Fix data-races around sysctl.
While reading cipso sysctl variables, they can be changed concurrently.
So, we need to add READ_ONCE() to avoid data-races.

Fixes: 446fda4f26 ("[NetLabel]: CIPSOv4 engine")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-08 12:10:33 +01:00
Linus Torvalds
ef4ab3ba4e Merge tag 'net-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
 "Including fixes from bpf, netfilter, can, and bluetooth.

  Current release - regressions:

   - bluetooth: fix deadlock on hci_power_on_sync

  Previous releases - regressions:

   - sched: act_police: allow 'continue' action offload

   - eth: usbnet: fix memory leak in error case

   - eth: ibmvnic: properly dispose of all skbs during a failover

  Previous releases - always broken:

   - bpf:
       - fix insufficient bounds propagation from
         adjust_scalar_min_max_vals
       - clear page contiguity bit when unmapping pool

   - netfilter: nft_set_pipapo: release elements in clone from
     abort path

   - mptcp: netlink: issue MP_PRIO signals from userspace PMs

   - can:
       - rcar_canfd: fix data transmission failed on R-Car V3U
       - gs_usb: gs_usb_open/close(): fix memory leak

  Misc:

   - add Wenjia as SMC maintainer"

* tag 'net-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
  wireguard: Kconfig: select CRYPTO_CHACHA_S390
  crypto: s390 - do not depend on CRYPTO_HW for SIMD implementations
  wireguard: selftests: use microvm on x86
  wireguard: selftests: always call kernel makefile
  wireguard: selftests: use virt machine on m68k
  wireguard: selftests: set fake real time in init
  r8169: fix accessing unset transport header
  net: rose: fix UAF bug caused by rose_t0timer_expiry
  usbnet: fix memory leak in error case
  Revert "tls: rx: move counting TlsDecryptErrors for sync"
  mptcp: update MIB_RMSUBFLOW in cmd_sf_destroy
  mptcp: fix local endpoint accounting
  selftests: mptcp: userspace PM support for MP_PRIO signals
  mptcp: netlink: issue MP_PRIO signals from userspace PMs
  mptcp: Acquire the subflow socket lock before modifying MP_PRIO flags
  mptcp: Avoid acquiring PM lock for subflow priority changes
  mptcp: fix locking in mptcp_nl_cmd_sf_destroy()
  net/mlx5e: Fix matchall police parameters validation
  net/sched: act_police: allow 'continue' action offload
  net: lan966x: hardcode the number of external ports
  ...
2022-07-07 10:08:20 -07:00
Bryan O'Donoghue
94c65dffd4 ASoC: dt-bindings: Fix description for msm8916
For the existing msm8916 bindings the minimum reg/reg-names is 1 not 2.
Similarly the minimum interrupt/interrupt-names is 1 not 2.

Fixes: f3fc4fbfa2 ("ASoC: dt-bindings: Add SC7280 lpass cpu bindings")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220629114012.3282945-1-bryan.odonoghue@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-07-07 17:16:30 +01:00
Marek Vasut
0735e400fa ASoC: doc: Capitalize RESET line name
Make sure all AC97 interface lines are spelled in capitals,
to avoid confusing readers about where the 5th line is.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Mark Brown <broonie@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20220628165840.152235-1-marex@denx.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-07-07 17:16:30 +01:00
Samuel Holland
607a48c78e dt-bindings: dma: allwinner,sun50i-a64-dma: Fix min/max typo
The conditional block for variants with a second clock should have set
minItems, not maxItems, which was already 2. Since clock-names requires
two items, this typo should not have caused any problems.

Fixes: edd14218bd ("dt-bindings: dmaengine: Convert Allwinner A31 and A64 DMA to a schema")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220702031903.21703-1-samuel@sholland.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-07-06 21:57:05 +05:30
Jakub Kicinski
5d407ca738 docs: netdev: add a cheat sheet for the rules
Summarize the rules we see broken most often and which may
be less familiar to kernel devs who are used to working outside
of netdev.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-04 10:06:50 +01:00
Jakub Kicinski
a248756411 docs: netdev: document reverse xmas tree
Similarly to the 15 patch rule the reverse xmas tree is not
documented.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-04 10:06:50 +01:00
Jakub Kicinski
02514a067f docs: netdev: document that patch series length limit
We had been asking people to avoid massive patch series but it does
not appear in the FAQ.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-04 10:06:50 +01:00
Masahiro Yamada
2cc39179ac doc: module: update file references
Adjust documents to the file moves made by commit cfc1d27789 ("module:
Move all into module/").

Thanks to Yanteng Si for helping me to update
Documentation/translations/zh_CN/core-api/kernel-api.rst

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2022-07-01 14:50:01 -07:00
Dave Airlie
b8f0009bc9 Merge tag 'drm-misc-fixes-2022-06-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
A NULL pointer dereference fix for vc4, and 3 patches to improve the
sysfb device behaviour when removing conflicting framebuffers

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220630072404.2fa4z3nk5h5q34ci@houat
2022-07-01 09:27:55 +10:00
Javier Martinez Canillas
bde376e9de firmware: sysfb: Add sysfb_disable() helper function
This can be used by subsystems to unregister a platform device registered
by sysfb and also to disable future platform device registration in sysfb.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220607182338.344270-3-javierm@redhat.com
2022-06-29 09:51:41 +02:00
Peter Zijlstra
3ebc170068 x86/bugs: Add retbleed=ibpb
jmp2ret mitigates the easy-to-attack case at relatively low overhead.
It mitigates the long speculation windows after a mispredicted RET, but
it does not mitigate the short speculation window from arbitrary
instruction boundaries.

On Zen2, there is a chicken bit which needs setting, which mitigates
"arbitrary instruction boundaries" down to just "basic block boundaries".

But there is no fix for the short speculation window on basic block
boundaries, other than to flush the entire BTB to evict all attacker
predictions.

On the spectrum of "fast & blurry" -> "safe", there is (on top of STIBP
or no-SMT):

  1) Nothing		System wide open
  2) jmp2ret		May stop a script kiddy
  3) jmp2ret+chickenbit  Raises the bar rather further
  4) IBPB		Only thing which can count as "safe".

Tentative numbers put IBPB-on-entry at a 2.5x hit on Zen2, and a 10x hit
on Zen1 according to lmbench.

  [ bp: Fixup feature bit comments, document option, 32-bit build fix. ]

Suggested-by: Andrew Cooper <Andrew.Cooper3@citrix.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
2022-06-27 10:34:00 +02:00
Pawan Gupta
7c693f54c8 x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS
Extend spectre_v2= boot option with Kernel IBRS.

  [jpoimboe: no STIBP with IBRS]

Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
2022-06-27 10:33:59 +02:00
Kim Phillips
e8ec1b6e08 x86/bugs: Enable STIBP for JMP2RET
For untrained return thunks to be fully effective, STIBP must be enabled
or SMT disabled.

Co-developed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
2022-06-27 10:33:59 +02:00
Alexandre Chartre
7fbf47c7ce x86/bugs: Add AMD retbleed= boot parameter
Add the "retbleed=<value>" boot parameter to select a mitigation for
RETBleed. Possible values are "off", "auto" and "unret"
(JMP2RET mitigation). The default value is "auto".

Currently, "retbleed=auto" will select the unret mitigation on
AMD and Hygon and no mitigation on Intel (JMP2RET is not effective on
Intel).

  [peterz: rebase; add hygon]
  [jpoimboe: cleanups]

Signed-off-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
2022-06-27 10:33:59 +02:00
Linus Torvalds
413c1f1491 Merge tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull hotfixes from Andrew Morton:
 "Minor things, mainly - mailmap updates, MAINTAINERS updates, etc.

  Fixes for this merge window:

   - fix for a damon boot hang, from SeongJae

   - fix for a kfence warning splat, from Jason Donenfeld

   - fix for zero-pfn pinning, from Alex Williamson

   - fix for fallocate hole punch clearing, from Mike Kravetz

  Fixes for previous releases:

   - fix for a performance regression, from Marcelo

   - fix for a hwpoisining BUG from zhenwei pi"

* tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mailmap: add entry for Christian Marangi
  mm/memory-failure: disable unpoison once hw error happens
  hugetlbfs: zero partial pages during fallocate hole punch
  mm: memcontrol: reference to tools/cgroup/memcg_slabinfo.py
  mm: re-allow pinning of zero pfns
  mm/kfence: select random number before taking raw lock
  MAINTAINERS: add maillist information for LoongArch
  MAINTAINERS: update MM tree references
  MAINTAINERS: update Abel Vesa's email
  MAINTAINERS: add MEMORY HOT(UN)PLUG section and add David as reviewer
  MAINTAINERS: add Miaohe Lin as a memory-failure reviewer
  mailmap: add alias for jarkko@profian.com
  mm/damon/reclaim: schedule 'damon_reclaim_timer' only after 'system_wq' is initialized
  kthread: make it clear that kthread_create_on_node() might be terminated by any fatal signal
  mm: lru_cache_disable: use synchronize_rcu_expedited
  mm/page_isolation.c: fix one kernel-doc comment
2022-06-26 14:00:55 -07:00
Linus Torvalds
82708bb1eb Merge tag 'for-5.19-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:

 - zoned relocation fixes:
      - fix critical section end for extent writeback, this could lead
        to out of order write
      - prevent writing to previous data relocation block group if space
        gets low

 - reflink fixes:
      - fix race between reflinking and ordered extent completion
      - proper error handling when block reserve migration fails
      - add missing inode iversion/mtime/ctime updates on each iteration
        when replacing extents

 - fix deadlock when running fsync/fiemap/commit at the same time

 - fix false-positive KCSAN report regarding pid tracking for read locks
   and data race

 - minor documentation update and link to new site

* tag 'for-5.19-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Documentation: update btrfs list of features and link to readthedocs.io
  btrfs: fix deadlock with fsync+fiemap+transaction commit
  btrfs: don't set lock_owner when locking extent buffer for reading
  btrfs: zoned: fix critical section of relocation inode writeback
  btrfs: zoned: prevent allocation from previous data relocation BG
  btrfs: do not BUG_ON() on failure to migrate space when replacing extents
  btrfs: add missing inode updates on each iteration when replacing extents
  btrfs: fix race between reflinking and ordered extent completion
2022-06-26 10:11:36 -07:00
Linus Torvalds
393ed5d85e Merge tag 'kbuild-fixes-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:

 - Fix modpost to detect EXPORT_SYMBOL marked as __init or__exit

 - Update the supported arch list in the LLVM document

 - Avoid the second link of vmlinux for CONFIG_TRIM_UNUSED_KSYMS

 - Avoid false __KSYM___this_module define in include/generated/autoksyms.h

* tag 'kbuild-fixes-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: Ignore __this_module in gen_autoksyms.sh
  kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS (2nd attempt)
  Documentation/llvm: Update Supported Arch table
  modpost: fix section mismatch check for exported init/exit sections
2022-06-26 08:47:28 -07:00
Linus Torvalds
0840a7914c Merge tag 'char-misc-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull IIO driver fixes from Greg KH:
 "Here are a set of IIO driver fixes for 5.19-rc4. Jonathan said it best
  in his pull request to me, so I'll just quote it here below, as that's
  the only changes we have right now for the char-misc driver tree:

  testing:
      - Fix a missing MODULE_LICENSE() warning by restricting possible
        build configs.

  Various drivers:
      - Fix ordering of iio_get_trigger() being called before
        iio_trigger_register()

  adi,admv1014:
      - Fix dubious x & !y warning.

  adi,axi-adc:
      - Fix missing of_node_put() in error and normal paths.

  aspeed,adc:
      - Add missing of_node_put()

  fsl,mma8452:
      - Fix broken probing from device tree.
      - Drop check on return value of i2c write to device to cause reset
        as ACK will be missing (device reset before sending it).

  fsl,vf610:
      - Fix documentation of in_conversion_mode ABI.

  iio-trig-sysfs:
      - Ensure irq work has finished before freeing the trigger.

  invensense,mpu3050:
      - Disable regulators in error path.

  invensense,icm42600:
      - Fix collision of enum value of 0 with error path where 0 is no
        match.

  renesas,rzg2l_Adc:
      - Add missing fwnode_handle_put() in error path.

  rescale:
      - Fix a boolean logic bug for detection of raw + scale affecting
        an obscure corner case.

  semtech,sx9324:
      - Check return value of read of pin_defs

  st,stm32-adc:
      - Fix interaction across ADC instances for some supported devices.
      - Drop false spurious IRQ messages.
      - Fix calibration value handling. If we can't calibrate don't
        expose the vref_int channel.
      - Fix maximum clock rate for stm32pm15x

  ti,ads131e08:
      - Add missing fwnode_handle_put() in error paths.

  xilinx,ams:
      - Fix variable checked for error from platform_get_irq()

  x-powers,axp288:
      - Overide TS_PIN bias current for boards where it is not correctly
        initialized.

  yamaha,yas530:
      - Fix inverted check on calibration data being all zeros.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'char-misc-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (26 commits)
  iio:proximity:sx9324: Check ret value of device_property_read_u32_array()
  iio: accel: mma8452: ignore the return value of reset operation
  iio: adc: stm32: fix maximum clock rate for stm32mp15x
  iio: adc: stm32: fix vrefint wrong calibration value handling
  iio: imu: inv_icm42600: Fix broken icm42600 (chip id 0 value)
  iio: adc: vf610: fix conversion mode sysfs node name
  iio: adc: adi-axi-adc: Fix refcount leak in adi_axi_adc_attach_client
  iio: test: fix missing MODULE_LICENSE for IIO_RESCALE=m
  iio:humidity:hts221: rearrange iio trigger get and register
  iio:chemical:ccs811: rearrange iio trigger get and register
  iio:accel:mxc4005: rearrange iio trigger get and register
  iio:accel:kxcjk-1013: rearrange iio trigger get and register
  iio:accel:bma180: rearrange iio trigger get and register
  iio: afe: rescale: Fix boolean logic bug
  iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data
  iio: adc: stm32: Fix IRQs on STM32F4 by removing custom spurious IRQs message
  iio: adc: stm32: Fix ADCs iteration in irq handler
  iio: adc: ti-ads131e08: add missing fwnode_handle_put() in ads131e08_alloc_channels()
  iio: adc: rzg2l_adc: add missing fwnode_handle_put() in rzg2l_adc_parse_properties()
  iio: trigger: sysfs: fix use-after-free on remove
  ...
2022-06-25 10:07:36 -07:00
Linus Torvalds
c24eb8d6a5 Merge tag 'usb-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB driver fixes from Greg KH:
 "Here are some small USB driver fixes and new device ids for 5.19-rc4
  for a few small reported issues. They include:

   - new usb-serial driver ids

   - MAINTAINERS file update to properly catch the USB dts files

   - dt-bindings fixes for reported build warnings

   - xhci driver fixes for reported problems

   - typec Kconfig dependancy fix

   - raw_gadget fuzzing fixes found by syzbot

   - chipidea driver bugfix

   - usb gadget uvc bugfix

  All of these have been in linux-next with no reported issues"

* tag 'usb-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: chipidea: udc: check request status before setting device address
  USB: gadget: Fix double-free bug in raw_gadget driver
  xhci-pci: Allow host runtime PM as default for Intel Meteor Lake xHCI
  xhci-pci: Allow host runtime PM as default for Intel Raptor Lake xHCI
  xhci: turn off port power in shutdown
  xhci: Keep interrupt disabled in initialization until host is running.
  USB: serial: option: add Quectel RM500K module support
  USB: serial: option: add Quectel EM05-G modem
  USB: serial: pl2303: add support for more HXN (G) types
  usb: typec: wcove: Drop wrong dependency to INTEL_SOC_PMIC
  usb: gadget: uvc: fix list double add in uvcg_video_pump
  dt-bindings: usb: ehci: Increase the number of PHYs
  dt-bindings: usb: ohci: Increase the number of PHYs
  usb: gadget: Fix non-unique driver names in raw-gadget driver
  MAINTAINERS: add include/dt-bindings/usb to USB SUBSYSTEM
  USB: serial: option: add Telit LE910Cx 0x1250 composition
2022-06-25 10:02:05 -07:00
Linus Torvalds
8c23f235a6 Merge tag 'gpio-fixes-for-v5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:

 - make the irqchip immutable in gpio-realtek-otto

 - fix error code propagation in gpio-winbond

 - fix device removing in gpio-grgpio

 - fix a typo in gpio-mxs which indicates the driver is for a different
   model

 - documentation fixes

 - MAINTAINERS file updates

* tag 'gpio-fixes-for-v5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: mxs: Fix header comment
  gpio: Fix kernel-doc comments to nested union
  gpio: grgpio: Fix device removing
  gpio: winbond: Fix error code in winbond_gpio_get()
  gpio: realtek-otto: Make the irqchip immutable
  docs: driver-api: gpio: Fix filename mismatch
  MAINTAINERS: add include/dt-bindings/gpio to GPIO SUBSYSTEM
2022-06-24 17:01:31 -07:00
Linus Torvalds
4039974f3b Merge tag 'spi-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
 "A bunch of driver specific fixes, plus a fix for spi-mem's status
  polling for devices that use GPIO chip selects and a DT bindings
  examples fix that helps with the validation work"

* tag 'spi-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: rockchip: Unmask IRQ at the final to avoid preemption
  spi: dt-bindings: Fix unevaluatedProperties warnings in examples
  spi: spi-mem: Fix spi_mem_poll_status()
  spi: cadence: Detect transmit FIFO depth
  spi: spi-cadence: Fix SPI CS gets toggling sporadically
2022-06-24 13:54:16 -07:00
Geert Uytterhoeven
9faa1c8f92 dt-bindings: usb: ehci: Increase the number of PHYs
"make dtbs_check":

    arch/arm/boot/dts/r8a77470-iwg23s-sbc.dtb: usb@ee080100: phys: [[17, 0], [31]] is too long
	    From schema: Documentation/devicetree/bindings/usb/generic-ehci.yaml
    arch/arm/boot/dts/r8a77470-iwg23s-sbc.dtb: usb@ee0c0100: phys: [[17, 1], [33], [21, 0]] is too long
	    From schema: Documentation/devicetree/bindings/usb/generic-ehci.yaml

Some USB EHCI controllers (e.g. on the Renesas RZ/G1C SoC) have multiple
PHYs.  Increase the maximum number of PHYs to 3, which is sufficient for
now.

Fixes: 0499220d6d ("dt-bindings: Add missing array size constraints")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/c5d19e2f9714f43effd90208798fc1936098078f.1655301043.git.geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-21 16:26:54 +02:00
Geert Uytterhoeven
0f074c1c95 dt-bindings: usb: ohci: Increase the number of PHYs
"make dtbs_check":

    arch/arm/boot/dts/r8a77470-iwg23s-sbc.dtb: usb@ee080000: phys: [[17, 0], [31]] is too long
	    From schema: Documentation/devicetree/bindings/usb/generic-ohci.yaml
    arch/arm/boot/dts/r8a77470-iwg23s-sbc.dtb: usb@ee0c0000: phys: [[17, 1], [33], [21, 0]] is too long
	    From schema: Documentation/devicetree/bindings/usb/generic-ohci.yaml

Some USB OHCI controllers (e.g. on the Renesas RZ/G1C SoC) have multiple
PHYs.  Increase the maximum number of PHYs to 3, which is sufficient for
now.

Fixes: 0499220d6d ("dt-bindings: Add missing array size constraints")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/0112f9c8881513cb33bf7b66bc743dd08b35a2f5.1655301203.git.geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-21 16:26:43 +02:00
David Sterba
037e127452 Documentation: update btrfs list of features and link to readthedocs.io
The btrfs documentation in kernel is only meant as a starting point, so
update the list of features and add link to btrfs.readthedocs.io page
that is most up-to-date. The wiki is still used but information is
migrated from there.

Signed-off-by: David Sterba <dsterba@suse.com>
2022-06-21 14:47:19 +02:00
Greg Kroah-Hartman
315f7e15c2 Merge tag 'iio-fixes-for-5.19a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next
Jonathan writes:

1st set of IIO fixes for the 5.19 cycle.

Most of these have been in next for a long time. Unfortunately there
was one stray patch in the branch (wasn't a fix), so I've just rebased
to remove that.

* testing
  - Fix a missing MODULE_LICENSE() warning by restricting possible build
    configs.
* Various drivers
  - Fix ordering of iio_get_trigger() being called before
    iio_trigger_register()
* adi,admv1014
  - Fix dubious x & !y warning.
* adi,axi-adc
  - Fix missing of_node_put() in error and normal paths.
* aspeed,adc
  - Add missing of_node_put()
* fsl,mma8452
  - Fix broken probing from device tree.
  - Drop check on return value of i2c write to device to cause reset as
    ACK will be missing (device reset before sending it).
* fsl,vf610
  - Fix documentation of in_conversion_mode ABI.
* iio-trig-sysfs
  - Ensure irq work has finished before freeing the trigger.
* invensense,mpu3050
 - Disable regulators in error path.
* invensense,icm42600
  - Fix collision of enum value of 0 with error path where 0 is no match.
* renesas,rzg2l_Adc
  - Add missing fwnode_handle_put() in error path.
* rescale
  - Fix a boolean logic bug for detection of raw + scale affecting an
    obscure corner case.
* semtech,sx9324
  - Check return value of read of pin_defs
* st,stm32-adc:
  - Fix interaction across ADC instances for some supported devices.
  - Drop false spurious IRQ messages.
  - Fix calibration value handling.  If we can't calibrate don't expose the
    vref_int channel.
  - Fix maximum clock rate for stm32pm15x
* ti,ads131e08
  - Add missing fwnode_handle_put() in error paths.
* xilinx,ams
  - Fix variable checked for error from platform_get_irq()
* x-powers,axp288
  - Overide TS_PIN bias current for boards where it is not correctly
    initialized.
* yamaha,yas530
  - Fix inverted check on calibration data being all zeros.

* tag 'iio-fixes-for-5.19a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (26 commits)
  iio:proximity:sx9324: Check ret value of device_property_read_u32_array()
  iio: accel: mma8452: ignore the return value of reset operation
  iio: adc: stm32: fix maximum clock rate for stm32mp15x
  iio: adc: stm32: fix vrefint wrong calibration value handling
  iio: imu: inv_icm42600: Fix broken icm42600 (chip id 0 value)
  iio: adc: vf610: fix conversion mode sysfs node name
  iio: adc: adi-axi-adc: Fix refcount leak in adi_axi_adc_attach_client
  iio: test: fix missing MODULE_LICENSE for IIO_RESCALE=m
  iio:humidity:hts221: rearrange iio trigger get and register
  iio:chemical:ccs811: rearrange iio trigger get and register
  iio:accel:mxc4005: rearrange iio trigger get and register
  iio:accel:kxcjk-1013: rearrange iio trigger get and register
  iio:accel:bma180: rearrange iio trigger get and register
  iio: afe: rescale: Fix boolean logic bug
  iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data
  iio: adc: stm32: Fix IRQs on STM32F4 by removing custom spurious IRQs message
  iio: adc: stm32: Fix ADCs iteration in irq handler
  iio: adc: ti-ads131e08: add missing fwnode_handle_put() in ads131e08_alloc_channels()
  iio: adc: rzg2l_adc: add missing fwnode_handle_put() in rzg2l_adc_parse_properties()
  iio: trigger: sysfs: fix use-after-free on remove
  ...
2022-06-20 09:49:52 +02:00
Nick Desaulniers
291810be42 Documentation/llvm: Update Supported Arch table
While watching Michael's new talk on Clang-built-Linux, I noticed the
arch table in our docs that he refers to is outdated.

Add hexagon and User Mode.  Bump MIPS and RISCV to LLVM=1.  PowerPC is
almost LLVM=1 capable; ppc64le works, but ppc64 (big endian) and ppc32
still need more work.

Link: https://youtu.be/W4zdEDpvR5c?t=399
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-06-20 08:21:29 +09:00
Baruch Siach
f1a633b15c iio: adc: vf610: fix conversion mode sysfs node name
The documentation missed the "in_" prefix for this IIO_SHARED_BY_DIR
entry.

Fixes: bf04c1a367 ("iio: adc: vf610: implement configurable conversion modes")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://lore.kernel.org/r/560dc93fafe5ef7e9a409885fd20b6beac3973d8.1653900626.git.baruch@tkos.co.il
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-19 17:22:49 +01:00
Linus Torvalds
36da9f5fb6 Merge tag 'irq-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "A set of interrupt subsystem updates:

  Core:

   - Ensure runtime power management for chained interrupts

  Drivers:

   - A collection of OF node refcount fixes

   - Unbreak MIPS uniprocessor builds

   - Fix xilinx interrupt controller Kconfig dependencies

   - Add a missing compatible string to the Uniphier driver"

* tag 'irq-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/loongson-liointc: Use architecture register to get coreid
  irqchip/uniphier-aidet: Add compatible string for NX1 SoC
  dt-bindings: interrupt-controller/uniphier-aidet: Add bindings for NX1 SoC
  irqchip/realtek-rtl: Fix refcount leak in map_interrupts
  irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions
  irqchip/gic-v3: Fix error handling in gic_populate_ppi_partitions
  irqchip/apple-aic: Fix refcount leak in aic_of_ic_init
  irqchip/apple-aic: Fix refcount leak in build_fiq_affinity
  irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
  irqchip/xilinx: Remove microblaze+zynq dependency
  genirq: PM: Use runtime PM for chained interrupts
2022-06-19 09:45:16 -05:00
Linus Torvalds
354c6e071b Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
 "Fix a variety of bugs, many of which were found by folks using fuzzing
  or error injection.

  Also fix up how test_dummy_encryption mount option is handled for the
  new mount API.

  Finally, fix/cleanup a number of comments and ext4 Documentation
  files"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix a doubled word "need" in a comment
  ext4: add reserved GDT blocks check
  ext4: make variable "count" signed
  ext4: correct the judgment of BUG in ext4_mb_normalize_request
  ext4: fix bug_on ext4_mb_use_inode_pa
  ext4: fix up test_dummy_encryption handling for new mount API
  ext4: use kmemdup() to replace kmalloc + memcpy
  ext4: fix super block checksum incorrect after mount
  ext4: improve write performance with disabled delalloc
  ext4: fix warning when submitting superblock in ext4_commit_super()
  ext4, doc: remove unnecessary escaping
  ext4: fix incorrect comment in ext4_bio_write_page()
  fs: fix jbd2_journal_try_to_free_buffers() kernel-doc comment
2022-06-18 21:51:12 -05:00
Linus Torvalds
cc2fb31d49 Merge tag 'loongarch-fixes-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
 "Add missing ELF_DETAILS in vmlinux.lds.S and fix document rendering"

* tag 'loongarch-fixes-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  docs/zh_CN/LoongArch: Fix notes rendering by using reST directives
  docs/LoongArch: Fix notes rendering by using reST directives
  LoongArch: vmlinux.lds.S: Add missing ELF_DETAILS
2022-06-17 13:50:24 -05:00
Linus Torvalds
a96e902ba9 Merge tag 'hwmon-for-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:

 - Add missing lock protection in occ driver

 - Add missing comma in board name list in asus-ec-sensors driver

 - Fix devicetree bindings for ti,tmp401

* tag 'hwmon-for-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (asus-ec-sensors) add missing comma in board name list.
  hwmon: (occ) Lock mutex in shutdown to prevent race with occ_active
  dt-bindings: hwmon: ti,tmp401: Drop 'items' from 'ti,n-factor' property
2022-06-17 10:02:26 -07:00