Pull virtio-mem update from David Hildenbrand:
 "Support the VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature in virtio-mem,
  now that "accidential" access to logically unplugged memory inside
  added Linux memory blocks is no longer possible, because we:

   - Removed /dev/kmem in commit bbcd53c9 ("drivers/char: remove
     /dev/kmem for good")

   - Disallowed access to virtio-mem device memory via /dev/mem in
     commit 2128f4e2 ("virtio-mem: disallow mapping virtio-mem memory
     via /dev/mem")

   - Sanitized access to virtio-mem device memory via /proc/kcore in
     commit 0daa322b ("fs/proc/kcore: don't read offline sections,
     logically offline pages and hwpoisoned pages")

   - Sanitized access to virtio-mem device memory via /proc/vmcore in
     commit ce281462 ("virtio-mem: kdump mode to sanitize
     /proc/vmcore access")

  The new VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature that will be
  required by some hypervisors implementing virtio-mem in the near
  future, so let's support it now that we safely can"

* tag 'virtio-mem-for-5.16' of git://github.com/davidhildenbrand/linux:
  virtio-mem: support VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE

Pull more clk updates from Stephen Boyd:
 "This is the second batch of clk driver updates that needed a little
  more time to soak in linux-next.

   - Use modern i2c probe in vc5

   - Cleanup some includes

   - Update links to datasheets

   - Add UniPhier NX1 SoC clk support

   - Fix DT bindings for SiFive FU740

   - Revert the module platform driver support for Rockchip because it
     wasn't actually tested

   - Fix the composite clk code again as the previous fix had a one line
     bug that broke rate changes for clks that want to use the same
     parent still

   - Use the right table for a divider in ast2600 driver

   - Get rid of gcc_aggre1_pnoc_ahb_clk in qcom clk driver again because
     its critical but unused"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: qcom: gcc-msm8996: Drop (again) gcc_aggre1_pnoc_ahb_clk
  clk: imx8m: Do not set IMX_COMPOSITE_CORE for non-regular composites
  clk/ast2600: Fix soc revision for AHB
  clk: composite: Fix 'switching' to same clock
  clk: rockchip: drop module parts from rk3399 and rk3568 drivers
  Revert "clk: rockchip: use module_platform_driver_probe"
  clk:mediatek: remove duplicate include in clk-mt8195-imp_iic_wrap.c
  dt-bindings: clock: fu740-prci: add reset-cells
  clk: uniphier: Add SoC-glue clock source selector support for Pro4
  dt-bindings: clock: uniphier: Add clock binding for SoC-glue
  clk: uniphier: Add NX1 clock support
  dt-bindings: clock: uniphier: Add NX1 clock binding
  clk: uniphier: Add audio system and video input clock control for PXs3
  clk: si5351: Update datasheet references
  clk: vc5: Use i2c .probe_new
  clk/actions/owl-factor.c: remove superfluous headers
  clk: ingenic: Fix bugs with divided dividers

Pull block fixes from Jens Axboe:
 "Set of fixes that should go into this merge window:

   - ioctl vs read data race fixes (Shin'ichiro)

   - blkcg use-after-free fix (Laibin)

   - Last piece of the puzzle for add_disk() error handling, enable
     __must_check for (Luis)

   - Request allocation fixes (Ming)

   - Misc fixes (me)"

* tag 'block-5.16-2021-11-13' of git://git.kernel.dk/linux-block:
  blk-mq: fix filesystem I/O request allocation
  blkcg: Remove extra blkcg_bio_issue_init
  block: Hold invalidate_lock in BLKRESETZONE ioctl
  blk-mq: rename blk_attempt_bio_merge
  blk-mq: don't grab ->q_usage_counter in blk_mq_sched_bio_merge
  block: fix kerneldoc for disk_register_independent_access__ranges()
  block: add __must_check for *add_disk*() callers
  block: use enum type for blk_mq_alloc_data->rq_flags
  block: Hold invalidate_lock in BLKZEROOUT ioctl
  block: Hold invalidate_lock in BLKDISCARD ioctl

Pull io_uring fix from Jens Axboe:
 "Just a single fix here for a buffered write hash stall, which is also
  affecting stable"

* tag 'io_uring-5.16-2021-11-13' of git://git.kernel.dk/linux-block:
  io-wq: serialize hash clear with wakeup

Pull more cifs updates from Steve French:

 - improvements to reconnect and multichannel

 - a performance improvement (additional use of SMB3 compounding)

 - DFS code cleanup and improvements

 - various trivial Coverity fixes

 - two fscache fixes

 - an fsync fix

* tag '5.16-rc-part2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: (23 commits)
  cifs: do not duplicate fscache cookie for secondary channels
  cifs: connect individual channel servers to primary channel server
  cifs: protect session channel fields with chan_lock
  cifs: do not negotiate session if session already exists
  smb3: do not setup the fscache_super_cookie until fsinfo initialized
  cifs: fix potential use-after-free bugs
  cifs: fix memory leak of smb3_fs_context_dup::server_hostname
  smb3: add additional null check in SMB311_posix_mkdir
  cifs: release lock earlier in dequeue_mid error case
  smb3: add additional null check in SMB2_tcon
  smb3: add additional null check in SMB2_open
  smb3: add additional null check in SMB2_ioctl
  smb3: remove trivial dfs compile warning
  cifs: support nested dfs links over reconnect
  smb3: do not error on fsync when readonly
  cifs: for compound requests, use open handle if possible
  cifs: set a minimum of 120s for next dns resolution
  cifs: split out dfs code from cifs_reconnect()
  cifs: convert list_for_each to entry variant
  cifs: introduce new helper for cifs_reconnect()
  ...

This reverts commit b9d02f1b.

The error handling of that patch was fundamentally broken, and it needs
to be entirely re-done.

For example, in shmem_write_begin() it would call shmem_getpage(), then
ignore the error return from that, and look at the page pointer contents
instead.

And in shmem_read_mapping_page_gfp(), the patch tested PageHWPoison() on
a page pointer that two lines earlier had potentially been set as an
error pointer.

These issues could be individually fixed, but when it has this many
issues, I'm just reverting it instead of waiting for fixes.

Link: https://lore.kernel.org/linux-mm/20211111084617.6746-1-ajaygargnsit@gmail.com/Reported-by: Ajay Garg <ajaygargnsit@gmail.com>
Reported-by: Jens Axboe <axboe@kernel.dk>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull ksmbd updates from Steve French:
 "Several smb server fixes; three for stable:

   - important fix for negotiation info validation

   - fix alignment check in packet validation

   - cleanup of dead code (like MD4)

   - refactoring some protocol headers to use common code in smbfs_common"

* tag '5.16-rc-ksmbd-fixes' of git://git.samba.org/ksmbd:
  ksmbd: Use the SMB3_Create definitions from the shared
  ksmbd: Move more definitions into the shared area
  ksmbd: use the common definitions for NEGOTIATE_PROTOCOL
  ksmbd: switch to use shared definitions where available
  ksmbd: change LeaseKey data type to u8 array
  ksmbd: remove smb2_buf_length in smb2_transform_hdr
  ksmbd: remove smb2_buf_length in smb2_hdr
  ksmbd: remove md4 leftovers
  ksmbd: set unique value to volume serial field in FS_VOLUME_INFORMATION
  ksmbd: don't need 8byte alignment for request length in ksmbd_check_message
  ksmbd: Fix buffer length check in fsctl_validate_negotiate_info()
  ksmbd: Remove redundant 'flush_workqueue()' calls
  ksmdb: use cmd helper variable in smb2_get_ksmbd_tcon()
  ksmbd: use ksmbd_req_buf_next() in ksmbd_smb2_check_message()
  ksmbd: use ksmbd_req_buf_next() in ksmbd_verify_smb_message()

Pull ceph updates from Ilya Dryomov:
 "One notable change here is that async creates and unlinks introduced
  in 5.7 are now enabled by default. This should greatly speed up things
  like rm, tar and rsync. To opt out, wsync mount option can be used.

  Other than that we have a pile of bug fixes all across the filesystem
  from Jeff, Xiubo and Kotresh and a metrics infrastructure rework from
  Luis"

* tag 'ceph-for-5.16-rc1' of git://github.com/ceph/ceph-client:
  ceph: add a new metric to keep track of remote object copies
  libceph, ceph: move ceph_osdc_copy_from() into cephfs code
  ceph: clean-up metrics data structures to reduce code duplication
  ceph: split 'metric' debugfs file into several files
  ceph: return the real size read when it hits EOF
  ceph: properly handle statfs on multifs setups
  ceph: shut down mount on bad mdsmap or fsmap decode
  ceph: fix mdsmap decode when there are MDS's beyond max_mds
  ceph: ignore the truncate when size won't change with Fx caps issued
  ceph: don't rely on error_string to validate blocklisted session.
  ceph: just use ci->i_version for fscache aux info
  ceph: shut down access to inode when async create fails
  ceph: refactor remove_session_caps_cb
  ceph: fix auth cap handling logic in remove_session_caps_cb
  ceph: drop private list from remove_session_caps_cb
  ceph: don't use -ESTALE as special return code in try_get_cap_refs
  ceph: print inode numbers instead of pointer values
  ceph: enable async dirops by default
  libceph: drop ->monmap and err initialization
  ceph: convert to noop_direct_IO

Pull erofs fixes from Gao Xiang:

 - fix unsafe pagevec reuse which could cause unexpected behaviors

 - get rid of the unused DELAYEDALLOC strategy that has been replaced by
   TRYALLOC

* tag 'erofs-for-5.16-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: remove useless cache strategy of DELAYEDALLOC
  erofs: fix unsafe pagevec reuse of hooked pclusters

Pull f2fs updates from Jaegeuk Kim:
 "In this cycle, we've applied relatively small number of patches which
  fix subtle corner cases mainly, while introducing a new mount option
  to be able to fragment the disk intentionally for performance tests.

  Enhancements:

   - add a mount option to fragmente on-disk layout to understand the
     performance

   - support direct IO for multi-partitions

   - add a fault injection of dquot_initialize

  Bug fixes:

   - address some lockdep complaints

   - fix a deadlock issue with quota

   - fix a memory tuning condition

   - fix compression condition to improve the ratio

   - fix disabling compression on the non-empty compressed file

   - invalidate cached pages before IPU/DIO writes

  And, we've added some minor clean-ups as usual"

* tag 'f2fs-for-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  f2fs: fix UAF in f2fs_available_free_memory
  f2fs: invalidate META_MAPPING before IPU/DIO write
  f2fs: support fault injection for dquot_initialize()
  f2fs: fix incorrect return value in f2fs_sanity_check_ckpt()
  f2fs: compress: disallow disabling compress on non-empty compressed file
  f2fs: compress: fix overwrite may reduce compress ratio unproperly
  f2fs: multidevice: support direct IO
  f2fs: introduce fragment allocation mode mount option
  f2fs: replace snprintf in show functions with sysfs_emit
  f2fs: include non-compressed blocks in compr_written_block
  f2fs: fix wrong condition to trigger background checkpoint correctly
  f2fs: fix to use WHINT_MODE
  f2fs: fix up f2fs_lookup tracepoints
  f2fs: set SBI_NEED_FSCK flag when inconsistent node block found
  f2fs: introduce excess_dirty_threshold()
  f2fs: avoid attaching SB_ACTIVE flag during mount
  f2fs: quota: fix potential deadlock
  f2fs: should use GFP_NOFS for directory inodes

Pull netfs, 9p, afs and ceph (partial) foliation from David Howells:
 "This converts netfslib, 9p and afs to use folios. It also partially
  converts ceph so that it uses folios on the boundaries with netfslib.

  To help with this, a couple of folio helper functions are added in the
  first two patches.

  These patches don't touch fscache and cachefiles as I intend to remove
  all the code that deals with pages directly from there. Only nfs and
  cifs are using the old fscache I/O API now. The new API uses iov_iter
  instead.

  Thanks to Jeff Layton, Dominique Martinet and AuriStor for testing and
  retesting the patches"

* tag 'netfs-folio-20211111' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  afs: Use folios in directory handling
  netfs, 9p, afs, ceph: Use folios
  folio: Add a function to get the host inode for a folio
  folio: Add a function to change the private data attached to a folio

Pull coccinelle updates from Julia Lawall:

 - Update MAINTAINERS information (mailing list, web page, etc).

 - Add a semantic patch from Wen Yang to check for do_div calls that may
   cause truncation, motivated by commit b0ab99e7 ("sched: Fix
   possible divide by zero in avg_atom() calculation")

* tag 'coccinelle-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
  coccinelle: update Coccinelle entry
  coccinelle: semantic patch to check for inappropriate do_div() calls

Pull selinux fixes from Paul Moore:
 "Unfortunately I need to request a revert for two LSM/SELinux patches
  that came in via the network tree. The two patches in question add a
  new SCTP/LSM hook as well as an SELinux implementation of that LSM
  hook. The short version of "why?" is in the commit description of the
  revert patch, but I'll copy-n-paste the important bits below to save
  some time for the curious:

      ... Unfortunately these two patches were merged without proper
      review (the Reviewed-by and Tested-by tags from Richard Haines
      were for previous revisions of these patches that were
      significantly different) and there are outstanding objections from
      the SELinux maintainers regarding these patches.

      Work is currently ongoing to correct the problems identified in
      the reverted patches, as well as others that have come up during
      review, but it is unclear at this point in time when that work
      will be ready for inclusion in the mainline kernel. In the
      interest of not keeping objectionable code in the kernel for
      multiple weeks, and potentially a kernel release, we are reverting
      the two problematic patches.

  As usual with these things there is plenty of context to go with this
  and I'll try to do my best to provide that now. This effort started
  with a report of SCTP client side peel-offs not working correctly with
  SELinux, Ondrej Mosnacek put forth a patch which he believed properly
  addressed the problem but upon review by the netdev folks Xin Long
  described some additional issues and submitted an improved patchset
  for review. The SELinux folks reviewed Xin Long's initial patchset and
  suggested some changes which resulted in a second patchset (v2) from
  Xin Long; this is the patchset that is currently in your tree.
  Unfortunately this v2 patchset from Xin Long was merged before it had
  spent even just 24 hours on the mailing lists during the early days of
  the merge window, a time when many of us were busy doing verification
  of the newly released v5.15 kernel as well final review and testing of
  our v5.16 pull requests. Making matters worse, upon reviewing the v2
  patchset there were both changes which were found objectionable by
  SELinux standards as well as additional outstanding SCTP/SELinux
  interaction problems. At this point we did two things: resumed working
  on a better fix for the SCTP/SELinux issue(s) - thank you Ondrej - and
  we asked the networking folks to revert the v2 patchset.

  The revert request was obviously rejected, but at the time I believed
  it was just going to be an issue for linux-next; I wasn't expecting
  something this significant that was merged into the networking tree
  during the merge window to make it into your tree in the same window,
  yet as of last night that is exactly what happened. While we continue
  to try and resolve the SCTP/SELinux problem I am asking once again to
  revert the v2 patches and not ship the current
  security_sctp_assoc_established() hook in a v5.16-rcX kernel. If I was
  confident that we could solve these issues in a week, maybe two, I
  would refrain from asking for the revert but our current estimate is
  for a minimum of two weeks for the next patch revision. With the
  likelihood of additional delays due to normal patch review follow-up
  and/or holidays it seems to me that the safest course of action is to
  revert the patch both to try and keep some objectionable code out of a
  release kernel and limit the chances of any new breakages from such a
  change. While the SCTP/SELinux code in v5.15 and earlier has problems,
  they are known problems, and I'd like to try and avoid creating new
  and different problems while we work to fix things properly.

  One final thing to mention: Xin Long's v2 patchset consisted of four
  patches, yet this revert is for only the last two. We see the first
  two patches as good, reasonable, and not likely to cause an issue. In
  an attempt to create a cleaner revert patch we suggest leaving the
  first two patches in the tree as they are currently"

* tag 'selinux-pr-20211112' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  net,lsm,selinux: revert the security_sctp_assoc_established() hook

Pull tracing fixes from Steven Rostedt:
 "Three tracing fixes:

   - Make local osnoise_instances static

   - Copy just actual size of histogram strings

   - Properly check missing operands in histogram expressions"

* tag 'trace-v5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing/histogram: Fix check for missing operands in an expression
  tracing/histogram: Do not copy the fixed-size char array field over the field size
  tracing/osnoise: Make osnoise_instances static

Pull more kvm updates from Paolo Bonzini:
 "New x86 features:

   - Guest API and guest kernel support for SEV live migration

   - SEV and SEV-ES intra-host migration

  Bugfixes and cleanups for x86:

   - Fix misuse of gfn-to-pfn cache when recording guest steal time /
     preempted status

   - Fix selftests on APICv machines

   - Fix sparse warnings

   - Fix detection of KVM features in CPUID

   - Cleanups for bogus writes to MSR_KVM_PV_EOI_EN

   - Fixes and cleanups for MSR bitmap handling

   - Cleanups for INVPCID

   - Make x86 KVM_SOFT_MAX_VCPUS consistent with other architectures

  Bugfixes for ARM:

   - Fix finalization of host stage2 mappings

   - Tighten the return value of kvm_vcpu_preferred_target()

   - Make sure the extraction of ESR_ELx.EC is limited to architected
     bits"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (34 commits)
  KVM: SEV: unify cgroup cleanup code for svm_vm_migrate_from
  KVM: x86: move guest_pv_has out of user_access section
  KVM: x86: Drop arbitrary KVM_SOFT_MAX_VCPUS
  KVM: Move INVPCID type check from vmx and svm to the common kvm_handle_invpcid()
  KVM: VMX: Add a helper function to retrieve the GPR index for INVPCID, INVVPID, and INVEPT
  KVM: nVMX: Clean up x2APIC MSR handling for L2
  KVM: VMX: Macrofy the MSR bitmap getters and setters
  KVM: nVMX: Handle dynamic MSR intercept toggling
  KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in use
  KVM: x86: Don't update vcpu->arch.pv_eoi.msr_val when a bogus value was written to MSR_KVM_PV_EOI_EN
  KVM: x86: Rename kvm_lapic_enable_pv_eoi()
  KVM: x86: Make sure KVM_CPUID_FEATURES really are KVM_CPUID_FEATURES
  KVM: x86: Add helper to consolidate core logic of SET_CPUID{2} flows
  kvm: mmu: Use fast PF path for access tracking of huge pages when possible
  KVM: x86/mmu: Properly dereference rcu-protected TDP MMU sptep iterator
  KVM: x86: inhibit APICv when KVM_GUESTDBG_BLOCKIRQ active
  kvm: x86: Convert return type of *is_valid_rdpmc_ecx() to bool
  KVM: x86: Fix recording of guest steal time / preempted status
  selftest: KVM: Add intra host migration tests
  selftest: KVM: Add open sev dev helper
  ...

Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

Pull vm86 fix from Eric Biederman:
 "Just the removal of an unnecessary (and incorrect) test from a BUG_ON"

* 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  signal/vm86_32: Remove pointless test in BUG_ON

Pull more s390 updates from Vasily Gorbik:

 - Add PCI automatic error recovery.

 - Fix tape driver timer initialization broken during timers api
   cleanup.

 - Fix bogus CPU measurement counters values on CPUs offlining.

 - Check the validity of subchanel before reading other fields in the
   schib in cio code.

* tag 's390-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/cio: check the subchannel validity for dev_busid
  s390/cpumf: cpum_cf PMU displays invalid value after hotplug remove
  s390/tape: fix timer initialization in tape_std_assign()
  s390/pci: implement minimal PCI error recovery
  PCI: Export pci_dev_lock()
  s390/pci: implement reset_slot for hotplug slot
  s390/pci: refresh function handle in iomap

Pull RISC-V updates from Palmer Dabbelt:

 - Support for time namespaces in the VDSO, along with some associated
   cleanups.

 - Support for building rv32 randconfigs.

 - Improvements to the XIP port that allow larger kernels to function

 - Various device tree cleanups for both the SiFive and Microchip boards

 - A handful of defconfig updates, including enabling Nouveau.

There are also various small cleanups.

* tag 'riscv-for-linus-5.16-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: defconfig: enable DRM_NOUVEAU
  riscv/vdso: Drop unneeded part due to merge issue
  riscv: remove .text section size limitation for XIP
  riscv: dts: sifive: add missing compatible for plic
  riscv: dts: microchip: add missing compatibles for clint and plic
  riscv: dts: sifive: drop duplicated nodes and properties in sifive
  riscv: dts: sifive: fix Unleashed board compatible
  riscv: dts: sifive: use only generic JEDEC SPI NOR flash compatible
  riscv: dts: microchip: use vendor compatible for Cadence SD4HC
  riscv: dts: microchip: drop unused pinctrl-names
  riscv: dts: microchip: drop duplicated MMC/SDHC node
  riscv: dts: microchip: fix board compatible
  riscv: dts: microchip: drop duplicated nodes
  dt-bindings: mmc: cdns: document Microchip MPFS MMC/SDHCI controller
  riscv: add rv32 and rv64 randconfig build targets
  riscv: mm: don't advertise 1 num_asid for 0 asid bits
  riscv: set default pm_power_off to NULL
  riscv/vdso: Add support for time namespaces

Pull more MIPS updates from Thomas Bogendoerfer:

 - Config updates for BMIPS platform

 - Build fixes

 - Makefile cleanups

* tag 'mips_5.16_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: decompressor: do not copy source files while building
  MIPS: boot/compressed/: add __bswapdi2() to target for ZSTD decompression
  MIPS: fix duplicated slashes for Platform file path
  MIPS: fix *-pkg builds for loongson2ef platform
  PCI: brcmstb: Allow building for BMIPS_GENERIC
  MIPS: BMIPS: Enable PCI Kconfig
  MIPS: VDSO: remove -nostdlib compiler flag
  mips: BCM63XX: ensure that CPU_SUPPORTS_32BIT_KERNEL is set
  MIPS: Update bmips_stb_defconfig
  MIPS: Allow modules to set board_be_handler

We allocate index cookies for each connection from the client.
However, we don't need this index for each channel in case of
multichannel. So making sure that we avoid creating duplicate
cookies by instantiating only for primary channel.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

Today, we don't have any way to get the smb session for any
of the secondary channels. Introducing a pointer to the primary
server from server struct of any secondary channel. The value will
be NULL for the server of the primary channel. This will enable us
to get the smb session for any channel.

This will be needed for some of the changes that I'm planning
to make soon.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

Introducing a new spin lock to protect all the channel related
fields in a cifs_ses struct. This lock should be taken
whenever dealing with the channel fields, and should be held
only for very short intervals which will not sleep.

Currently, all channel related fields in cifs_ses structure
are protected by session_mutex. However, this mutex is held for
long periods (sometimes while waiting for a reply from server).
This makes the codepath quite tricky to change.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

In cifs_get_smb_ses, if we find an existing matching session,
we should not send a negotiate request for the session if a
session reconnect is not necessary.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

kernel test robot <oliver.sang@intel.com> writes[1]:
>
> Greeting,
>
> FYI, we noticed the following commit (built with gcc-9):
>
> commit: 1a4d21a2 ("signal/vm86_32: Replace open coded BUG_ON with an actual BUG_ON")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>
> in testcase: trinity
> version: trinity-static-i386-x86_64-1c734c75-1_2020-01-06
> with following parameters:
>
>
> [ 70.645554][ T3747] kernel BUG at arch/x86/kernel/vm86_32.c:109!
> [ 70.646185][ T3747] invalid opcode: 0000 [#1] SMP
> [ 70.646682][ T3747] CPU: 0 PID: 3747 Comm: trinity-c6 Not tainted 5.15.0-rc1-00009-g1a4d21a2 #1
> [ 70.647598][ T3747] EIP: save_v86_state (arch/x86/kernel/vm86_32.c:109 (discriminator 3))
> [ 70.648113][ T3747] Code: 89 c3 64 8b 35 60 b8 25 c2 83 ec 08 89 55 f0 8b 96 10 19 00 00 89 55 ec e8 c6 2d 0c 00 fb 8b 55 ec 85 d2 74 05 83 3a 00 75 02 <0f> 0b 8b 86 10 19 00 00 8b 4b 38 8b 78 48 31 cf 89 f8 8b 7a 4c 81
> [ 70.650136][ T3747] EAX: 00000001 EBX: f5f49fac ECX: 0000000b EDX: f610b600
> [ 70.650852][ T3747] ESI: f5f79cc0 EDI: f5f79cc0 EBP: f5f49f04 ESP: f5f49ef0
> [ 70.651593][ T3747] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010246
> [ 70.652413][ T3747] CR0: 80050033 CR2: 00004000 CR3: 35fc7000 CR4: 000406d0
> [ 70.653169][ T3747] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
> [ 70.653897][ T3747] DR6: fffe0ff0 DR7: 00000400
> [ 70.654382][ T3747] Call Trace:
> [ 70.654719][ T3747] arch_do_signal_or_restart (arch/x86/kernel/signal.c:792 arch/x86/kernel/signal.c:867)
> [ 70.655288][ T3747] exit_to_user_mode_prepare (kernel/entry/common.c:174 kernel/entry/common.c:209)
> [ 70.655854][ T3747] irqentry_exit_to_user_mode (kernel/entry/common.c:126 kernel/entry/common.c:317)
> [ 70.656450][ T3747] irqentry_exit (kernel/entry/common.c:406)
> [ 70.656897][ T3747] exc_page_fault (arch/x86/mm/fault.c:1535)
> [ 70.657369][ T3747] ? sysvec_kvm_asyncpf_interrupt (arch/x86/mm/fault.c:1488)
> [ 70.657989][ T3747] handle_exception (arch/x86/entry/entry_32.S:1085)

vm86_32.c:109 is: "BUG_ON(!vm86 || !vm86->user_vm86)"

When trying to understand the failure Brian Gerst pointed out[2] that
the code does not need protection against vm86->user_vm86 being NULL.
The copy_from_user code will already handles that case if the address
is going to fault.

Looking futher I realized that if we care about not allowing struct
vm86plus_struct at address 0 it should be do_sys_vm86 (the system
call) that does the filtering.  Not way down deep when the emulation
has completed in save_v86_state.

So let's just remove the silly case of attempting to filter a
userspace address with a BUG_ON.  Existing userspace can't break and
it won't make the kernel any more attackable as the userspace access
helpers will handle it, if it isn't a good userspace pointer.

I have run the reproducer the fuzzer gave me before I made this change
and it reproduced, and after I made this change and I have not seen
the reported failure.  So it does looks like this fixes the reported
issue.

[1] https://lkml.kernel.org/r/20211112074030.GB19820@xsang-OptiPlex-9020
[2] https://lkml.kernel.org/r/CAMzpN2jkK5sAv-Kg_kVnCEyVySiqeTdUORcC=AdG1gV6r8nUew@mail.gmail.comSuggested-by: Brian Gerst <brgerst@gmail.com>
Reported-by: kernel test robot <oliver.sang@intel.com>
Tested-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

Merge tag 'kvmarm-fixes-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

KVM/arm64 fixes for 5.16, take #1

- Fix the host S2 finalization by solely iterating over the memblocks
  instead of the whole IPA space

- Tighten the return value of kvm_vcpu_preferred_target() now that
  32bit support is long gone

- Make sure the extraction of ESR_ELx.EC is limited to the architected
  bits

- Comment fixups

If a binary operation is detected while parsing an expression string,
the operand strings are deduced by splitting the experssion string at
the position of the detected binary operator. Both operand strings are
sub-strings (can be empty string) of the expression string but will
never be NULL.

Currently a NULL check is used for missing operands, fix this by
checking for empty strings instead.

Link: https://lkml.kernel.org/r/20211112191324.1302505-1-kaleshsingh@google.comSigned-off-by: Kalesh Singh <kaleshsingh@google.com>
Fixes: 9710b2f3 ("tracing: Fix operator precedence for hist triggers expression")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

Do not copy the fixed-size char array field of the events over
the field size. The histogram treats char array as a string and
there are 2 types of char array in the event, fixed-size and
dynamic string. The dynamic string (__data_loc) field must be
null terminated, but the fixed-size char array field may not
be null terminated (not a string, but just a data).
In that case, histogram can copy the data after the field.
This uses the original field size for fixed-size char array
field to restrict the histogram not to access over the original
field size.

Link: https://lkml.kernel.org/r/163673292822.195747.3696966210526410250.stgit@devnote2

Fixes: 02205a67 (tracing: Add support for 'field variables')
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

Pull crypto fix from Herbert Xu:
 "This fixes a boot crash regression"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: api - Fix boot-up crash when crypto manager is disabled

Pull more SCSI updates from James Bottomley:
 "This series is all the stragglers that didn't quite make the first
  merge window pull. It's mostly minor updates and bug fixes of merge
  window code but it also has two driver updates: ufs and qla2xxx"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (46 commits)
  scsi: scsi_debug: Don't call kcalloc() if size arg is zero
  scsi: core: Remove command size deduction from scsi_setup_scsi_cmnd()
  scsi: scsi_ioctl: Validate command size
  scsi: ufs: ufshpb: Properly handle max-single-cmd
  scsi: core: Avoid leaving shost->last_reset with stale value if EH does not run
  scsi: bsg: Fix errno when scsi_bsg_register_queue() fails
  scsi: sr: Remove duplicate assignment
  scsi: ufs: ufs-exynos: Introduce ExynosAuto v9 virtual host
  scsi: ufs: ufs-exynos: Multi-host configuration for ExynosAuto v9
  scsi: ufs: ufs-exynos: Support ExynosAuto v9 UFS
  scsi: ufs: ufs-exynos: Add pre/post_hce_enable drv callbacks
  scsi: ufs: ufs-exynos: Factor out priv data init
  scsi: ufs: ufs-exynos: Add EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR option
  scsi: ufs: ufs-exynos: Support custom version of ufs_hba_variant_ops
  scsi: ufs: ufs-exynos: Add setup_clocks callback
  scsi: ufs: ufs-exynos: Add refclkout_stop control
  scsi: ufs: ufs-exynos: Simplify drv_data retrieval
  scsi: ufs: ufs-exynos: Change pclk available max value
  scsi: ufs: Add quirk to enable host controller without PH configuration
  scsi: ufs: Add quirk to handle broken UIC command
  ...

Merge tag 'pwm/for-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "This set is mostly small fixes and cleanups, so more of a janitorial
  update for this cycle"

* tag 'pwm/for-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: vt8500: Rename pwm_busy_wait() to make it obviously driver-specific
  dt-bindings: pwm: tpu: Add R-Car M3-W+ device tree bindings
  dt-bindings: pwm: tpu: Add R-Car V3U device tree bindings
  pwm: pwm-samsung: Trigger manual update when disabling PWM
  pwm: visconti: Simplify using devm_pwmchip_add()
  pwm: samsung: Describe driver in Kconfig
  pwm: Make it explicit that pwm_apply_state() might sleep
  pwm: Add might_sleep() annotations for !CONFIG_PWM API functions
  pwm: atmel: Drop unused header

Pull sound fixes from Takashi Iwai:
 "A collection of fixes for 5.16-rc1, notably for a few regressions that
  were found in 5.15 and pre-rc1:

   - revert of the unification of SG-buffer helper functions on x86 and
     the relevant fix

   - regression fixes for mmap after the recent code refactoring

   - two NULL dereference fixes in HD-audio controller driver

   - UAF fixes in ALSA timer core

   - a few usual HD-audio and FireWire quirks"

* tag 'sound-fix-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: fireworks: add support for Loud Onyx 1200f quirk
  ALSA: hda: fix general protection fault in azx_runtime_idle
  ALSA: hda: Free card instance properly at probe errors
  ALSA: hda/realtek: Add quirk for HP EliteBook 840 G7 mute LED
  ALSA: memalloc: Remove a stale comment
  ALSA: synth: missing check for possible NULL after the call to kstrdup
  ALSA: memalloc: Use proper SG helpers for noncontig allocations
  ALSA: pci: rme: Fix unaligned buffer addresses
  ALSA: firewire-motu: add support for MOTU Track 16
  ALSA: PCM: Fix NULL dereference at mmap checks
  ALSA: hda/realtek: Add quirk for ASUS UX550VE
  ALSA: timer: Unconditionally unlink slave instances, too
  ALSA: memalloc: Catch call with NULL snd_dma_buffer pointer
  Revert "ALSA: memalloc: Convert x86 SG-buffer handling with non-contiguous type"
  ALSA: hda/realtek: Add a quirk for Acer Spin SP513-54N
  ALSA: firewire-motu: add support for MOTU Traveler mk3
  ALSA: hda/realtek: Headset fixup for Clevo NH77HJQ
  ALSA: timer: Fix use-after-free problem

Pull more drm updates from Dave Airlie:
 "I missed a drm-misc-next pull for the main pull last week. It wasn't
  that major and isn't the bulk of this at all. This has a bunch of
  fixes all over, a lot for amdgpu and i915.

  bridge:
   - HPD improvments for lt9611uxc
   - eDP aux-bus support for ps8640
   - LVDS data-mapping selection support

  ttm:
   - remove huge page functionality (needs reworking)
   - fix a race condition during BO eviction

  panels:
   - add some new panels

  fbdev:
   - fix double-free
   - remove unused scrolling acceleration
   - CONFIG_FB dep improvements

  locking:
   - improve contended locking logging
   - naming collision fix

  dma-buf:
   - add dma_resv_for_each_fence iterator
   - fix fence refcounting bug
   - name locking fixesA

  prime:
   - fix object references during mmap

  nouveau:
   - various code style changes
   - refcount fix
   - device removal fixes
   - protect client list with a mutex
   - fix CE0 address calculation

  i915:
   - DP rates related fixes
   - Revert disabling dual eDP that was causing state readout problems
   - put the cdclk vtables in const data
   - Fix DVO port type for older platforms
   - Fix blankscreen by turning DP++ TMDS output buffers on encoder->shutdown
   - CCS FBs related fixes
   - Fix recursive lock in GuC submission
   - Revert guc_id from i915_request tracepoint
   - Build fix around dmabuf

  amdgpu:
   - GPU reset fix
   - Aldebaran fix
   - Yellow Carp fixes
   - DCN2.1 DMCUB fix
   - IOMMU regression fix for Picasso
   - DSC display fixes
   - BPC display calculation fixes
   - Other misc display fixes
   - Don't allow partial copy from user for DC debugfs
   - SRIOV fixes
   - GFX9 CSB pin count fix
   - Various IP version check fixes
   - DP 2.0 fixes
   - Limit DCN1 MPO fix to DCN1

  amdkfd:
   - SVM fixes
   - Fix gfx version for renoir
   - Reset fixes

  udl:
   - timeout fix

  imx:
   - circular locking fix

  virtio:
   - NULL ptr deref fix"

* tag 'drm-next-2021-11-12' of git://anongit.freedesktop.org/drm/drm: (126 commits)
  drm/ttm: Double check mem_type of BO while eviction
  drm/amdgpu: add missed support for UVD IP_VERSION(3, 0, 64)
  drm/amdgpu: drop jpeg IP initialization in SRIOV case
  drm/amd/display: reject both non-zero src_x and src_y only for DCN1x
  drm/amd/display: Add callbacks for DMUB HPD IRQ notifications
  drm/amd/display: Don't lock connection_mutex for DMUB HPD
  drm/amd/display: Add comment where CONFIG_DRM_AMD_DC_DCN macro ends
  drm/amdkfd: Fix retry fault drain race conditions
  drm/amdkfd: lower the VAs base offset to 8KB
  drm/amd/display: fix exit from amdgpu_dm_atomic_check() abruptly
  drm/amd/amdgpu: fix the kfd pre_reset sequence in sriov
  drm/amdgpu: fix uvd crash on Polaris12 during driver unloading
  drm/i915/adlp/fb: Prevent the mapping of redundant trailing padding NULL pages
  drm/i915/fb: Fix rounding error in subsampled plane size calculation
  drm/i915/hdmi: Turn DP++ TMDS output buffers back on in encoder->shutdown()
  drm/locking: fix __stack_depot_* name conflict
  drm/virtio: Fix NULL dereference error in virtio_gpu_poll
  drm/amdgpu: fix SI handling in amdgpu_device_asic_has_dc_support()
  drm/amdgpu: Fix dangling kfd_bo pointer for shared BOs
  drm/amd/amdkfd: Don't sent command to HWS on kfd reset
  ...

Pull input updates from Dmitry Torokhov:
 "Just one new driver (Cypress StreetFighter touchkey), and no input
  core changes this time.

  Plus various fixes and enhancements to existing drivers"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (54 commits)
  Input: iforce - fix control-message timeout
  Input: wacom_i2c - use macros for the bit masks
  Input: ili210x - reduce sample period to 15ms
  Input: ili210x - improve polled sample spacing
  Input: ili210x - special case ili251x sample read out
  Input: elantench - fix misreporting trackpoint coordinates
  Input: synaptics-rmi4 - Fix device hierarchy
  Input: i8042 - Add quirk for Fujitsu Lifebook T725
  Input: cap11xx - add support for cap1206
  Input: remove unused header <linux/input/cy8ctmg110_pdata.h>
  Input: ili210x - add ili251x firmware update support
  Input: ili210x - export ili251x version details via sysfs
  Input: ili210x - use resolution from ili251x firmware
  Input: pm8941-pwrkey - respect reboot_mode for warm reset
  reboot: export symbol 'reboot_mode'
  Input: max77693-haptic - drop unneeded MODULE_ALIAS
  Input: cpcap-pwrbutton - do not set input parent explicitly
  Input: max8925_onkey - don't mark comment as kernel-doc
  Input: ads7846 - do not attempt IRQ workaround when deferring probe
  Input: ads7846 - use input_set_capability()
  ...

Pull RTC updates from Alexandre Belloni:
 "This includes new ioctls to get and set parameters and in particular
  the backup switch mode that is needed for some RTCs to actually enable
  the backup voltage (and have a useful RTC).

  The same interface can also be used to get the actual features
  supported by the RTC so userspace has a better way than trying and
  failing.

  Summary:

  Subsystem:
   - Add new ioctl to get and set extra RTC parameters, this includes
     backup switch mode
   - Expose available features to userspace, in particular, when alarmas
     have a resolution of one minute instead of a second.
   - Let the core handle those alarms with a minute resolution

  New driver:
   - MSTAR MSC313 RTC

  Drivers:
   - Add SPI ID table where necessary
   - Add BSM support for rv3028, rv3032 and pcf8523
   - s3c: set RTC range
   - rx8025: set range, implement .set_offset and .read_offset"

* tag 'rtc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits)
  rtc: rx8025: use .set_offset/.read_offset
  rtc: rx8025: use rtc_add_group
  rtc: rx8025: clear RTC_FEATURE_ALARM when alarm are not supported
  rtc: rx8025: set range
  rtc: rx8025: let the core handle the alarm resolution
  rtc: rx8025: switch to devm_rtc_allocate_device
  rtc: ab8500: let the core handle the alarm resolution
  rtc: ab-eoz9: support UIE when available
  rtc: ab-eoz9: use RTC_FEATURE_UPDATE_INTERRUPT
  rtc: rv3032: let the core handle the alarm resolution
  rtc: s35390a: let the core handle the alarm resolution
  rtc: handle alarms with a minute resolution
  rtc: pcf85063: silence cppcheck warning
  rtc: rv8803: fix writing back ctrl in flag register
  rtc: s3c: Add time range
  rtc: s3c: Extract read/write IO into separate functions
  rtc: s3c: Remove usage of devm_rtc_device_register()
  rtc: tps80031: Remove driver
  rtc: sun6i: Allow probing without an early clock provider
  rtc: pcf8523: add BSM support
  ...

Pull more libata updates from Damien Le Moal:
 "Second round of updates for libata for 5.16:

   - Fix READ LOG EXT and READ LOG DMA EXT command timeouts during disk
     revalidation after a resume or a modprobe of the LLDD (me)

   - Remove unnecessary error message in sata_highbank driver (Xu)

   - Better handling of accesses to the IDENTIFY DEVICE data log for
     drives that do not support this log page (me)

   - Fix ahci_shost_attr_group declaration in ahci driver (me)"

* tag 'libata-5.16-rc1-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  libata: libahci: declare ahci_shost_attr_group as static
  libata: add horkage for missing Identify Device log
  ata: sata_highbank: Remove unnecessary print function dev_err()
  libata: fix read log timeout value

We were calling cifs_fscache_get_super_cookie after tcon but before
we queried the info (QFS_Info) we need to initialize the cookie
properly.  Also includes an additional check suggested by Paulo
to make sure we don't initialize super cookie twice.
Suggested-by: David Howells <dhowells@redhat.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

TL;DR: While a tool like liblockdep is useful, it probably doesn't
belong within the kernel tree.

liblockdep attempts to reuse kernel code both directly (by directly
building the kernel's lockdep code) as well as indirectly (by using
sanitized headers). This makes liblockdep an integral part of the
kernel.

It also makes liblockdep quite unique: while other userspace code might
use sanitized headers, it generally doesn't attempt to use kernel code
directly which means that changes on the kernel side of things don't
affect (and break) it directly.

All our workflows and tooling around liblockdep don't support this
uniqueness. Changes that go into the kernel code aren't validated to not
break in-tree userspace code.

liblockdep ended up being very fragile, breaking over and over, to the
point that living in the same tree as the lockdep code lost most of it's
value.

liblockdep should continue living in an external tree, syncing with
the kernel often, in a controllable way.
Signed-off-by: Sasha Levin <sashal@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Ensure that share and prefix variables are set to NULL after kfree()
when looping through DFS targets in __tree_connect_dfs_target().

Also, get rid of @ref in __tree_connect_dfs_target() and just pass a
boolean to indicate whether we're handling link targets or not.

Fixes: c88f7dcd ("cifs: support nested dfs links over reconnect")
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

Fix memory leak of smb3_fs_context_dup::server_hostname when parsing
and duplicating fs contexts during mount(2) as reported by kmemleak:

  unreferenced object 0xffff888125715c90 (size 16):
    comm "mount.cifs", pid 3832, jiffies 4304535868 (age 190.094s)
    hex dump (first 16 bytes):
      7a 65 6c 64 61 2e 74 65 73 74 00 6b 6b 6b 6b a5  zelda.test.kkkk.
    backtrace:
      [<ffffffff8168106e>] kstrdup+0x2e/0x60
      [<ffffffffa027a362>] smb3_fs_context_dup+0x392/0x8d0 [cifs]
      [<ffffffffa0136353>] cifs_smb3_do_mount+0x143/0x1700 [cifs]
      [<ffffffffa02795e8>] smb3_get_tree+0x2e8/0x520 [cifs]
      [<ffffffff817a19aa>] vfs_get_tree+0x8a/0x2d0
      [<ffffffff8181e3e3>] path_mount+0x423/0x1a10
      [<ffffffff8181fbca>] __x64_sys_mount+0x1fa/0x270
      [<ffffffff83ae364b>] do_syscall_64+0x3b/0x90
      [<ffffffff83c0007c>] entry_SYSCALL_64_after_hwframe+0x44/0xae
  unreferenced object 0xffff888111deed20 (size 32):
    comm "mount.cifs", pid 3832, jiffies 4304536044 (age 189.918s)
    hex dump (first 32 bytes):
      44 46 53 52 4f 4f 54 31 2e 5a 45 4c 44 41 2e 54  DFSROOT1.ZELDA.T
      45 53 54 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5  EST.kkkkkkkkkkk.
    backtrace:
      [<ffffffff8168118d>] kstrndup+0x2d/0x90
      [<ffffffffa027ab2e>] smb3_parse_devname+0x9e/0x360 [cifs]
      [<ffffffffa01870c8>] cifs_setup_volume_info+0xa8/0x470 [cifs]
      [<ffffffffa018c469>] connect_dfs_target+0x309/0xc80 [cifs]
      [<ffffffffa018d6cb>] cifs_mount+0x8eb/0x17f0 [cifs]
      [<ffffffffa0136475>] cifs_smb3_do_mount+0x265/0x1700 [cifs]
      [<ffffffffa02795e8>] smb3_get_tree+0x2e8/0x520 [cifs]
      [<ffffffff817a19aa>] vfs_get_tree+0x8a/0x2d0
      [<ffffffff8181e3e3>] path_mount+0x423/0x1a10
      [<ffffffff8181fbca>] __x64_sys_mount+0x1fa/0x270
      [<ffffffff83ae364b>] do_syscall_64+0x3b/0x90
      [<ffffffff83c0007c>] entry_SYSCALL_64_after_hwframe+0x44/0xae

Fixes: 7be3248f ("cifs: To match file servers, make sure the server hostname matches")
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

Although unlikely for it to be possible for rsp to be null here,
the check is safer to add, and quiets a Coverity warning.

Addresses-Coverity: 1437501 ("Explicit Null dereference")
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>