Public bug reported:

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from a mainline/stable Linux tree or
       a minimally backported form of that patch. The following upstream
       stable patches should be included in the Ubuntu kernel:

       v5.4.40 upstream stable release
       from git://git.kernel.org/

vhost: vsock: kick send_pkt worker once device is started
drm/bridge: analogix_dp: Split bind() into probe() and real bind()
ASoC: topology: Check return value of soc_tplg_create_tlv
ASoC: topology: Check return value of soc_tplg_*_create
ASoC: topology: Check soc_tplg_add_route return value
ASoC: topology: Check return value of pcm_new_ver
ASoC: topology: Check return value of soc_tplg_dai_config
selftests/ipc: Fix test failure seen after initial test run
ASoC: sgtl5000: Fix VAG power-on handling
ASoC: topology: Fix endianness issue
usb: dwc3: gadget: Properly set maxpacket limit
ASoC: rsnd: Fix parent SSI start/stop in multi-SSI mode
ASoC: rsnd: Fix HDMI channel mapping for multi-SSI mode
ASoC: codecs: hdac_hdmi: Fix incorrect use of list_for_each_entry
remoteproc: qcom_q6v5_mss: fix a bug in q6v5_probe()
drm/amdgpu: Correctly initialize thermal controller for GPUs with Powerplay 
table v0 (e.g Hawaii)
wimax/i2400m: Fix potential urb refcnt leak
net: stmmac: fix enabling socfpga's ptp_ref_clock
net: stmmac: Fix sub-second increment
ASoC: rsnd: Don't treat master SSI in multi SSI setup as parent
ASoC: rsnd: Fix "status check failed" spam for multi-SSI
cifs: protect updating server->dstaddr with a spinlock
scripts/config: allow colons in option strings for sed
cifs: do not share tcons with DFS
tracing: Fix memory leaks in trace_events_hist.c
lib/mpi: Fix building for powerpc with clang
mac80211: sta_info: Add lockdep condition for RCU list usage
net: bcmgenet: suppress warnings on failed Rx SKB allocations
net: systemport: suppress warnings on failed Rx SKB allocations
drm/i915: Extend WaDisableDARBFClkGating to icl,ehl,tgl
sctp: Fix SHUTDOWN CTSN Ack in the peer restart case
Revert "software node: Simplify software_node_release() function"
hexagon: clean up ioremap
hexagon: define ioremap_uc
ALSA: hda: Match both PCI ID and SSID for driver blacklist
x86/kvm: fix a missing-prototypes "vmread_error"
platform/x86: GPD pocket fan: Fix error message when temp-limits are out of 
range
ACPI: PM: s2idle: Fix comment in acpi_s2idle_prepare_late()
mac80211: add ieee80211_is_any_nullfunc()
cgroup, netclassid: remove double cond_resched
libbpf: Fix readelf output parsing for Fedora
mm/mremap: Add comment explaining the untagging behaviour of mremap()
Revert "drm/amd/display: setting the DIG_MODE to the correct value."
tools headers UAPI: Sync copy of arm64's asm/unistd.h with the kernel sources
udp: document udp_rcv_segment special case for looped packets
PM / devfreq: Add missing locking while setting suspend_freq
Linux 5.4.40
UBUNTU: upstream stable to v5.4.40

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed

** Affects: linux (Ubuntu Focal)
     Importance: Undecided
     Assignee: Kamal Mostafa (kamalmostafa)
         Status: In Progress


** Tags: kernel-stable-tracking-bug

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

** Tags added: kernel-stable-tracking-bug

** Also affects: linux (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Focal)
       Status: New => In Progress

** Changed in: linux (Ubuntu Focal)
     Assignee: (unassigned) => Kamal Mostafa (kamalmostafa)

** Description changed:

+ SRU Justification
  
-     SRU Justification
+     Impact:
+        The upstream process for stable tree updates is quite similar
+        in scope to the Ubuntu SRU process, e.g., each patch has to
+        demonstrably fix a bug, and each patch is vetted by upstream
+        by originating either directly from a mainline/stable Linux tree or
+        a minimally backported form of that patch. The following upstream
+        stable patches should be included in the Ubuntu kernel:
  
-     Impact:
-        The upstream process for stable tree updates is quite similar
-        in scope to the Ubuntu SRU process, e.g., each patch has to
-        demonstrably fix a bug, and each patch is vetted by upstream
-        by originating either directly from a mainline/stable Linux tree or
-        a minimally backported form of that patch. The following upstream
-        stable patches should be included in the Ubuntu kernel:
+        v5.4.40 upstream stable release
+        from git://git.kernel.org/
  
-        v5.4.40 upstream stable release
-        from git://git.kernel.org/
+ vhost: vsock: kick send_pkt worker once device is started
+ drm/bridge: analogix_dp: Split bind() into probe() and real bind()
+ ASoC: topology: Check return value of soc_tplg_create_tlv
+ ASoC: topology: Check return value of soc_tplg_*_create
+ ASoC: topology: Check soc_tplg_add_route return value
+ ASoC: topology: Check return value of pcm_new_ver
+ ASoC: topology: Check return value of soc_tplg_dai_config
+ selftests/ipc: Fix test failure seen after initial test run
+ ASoC: sgtl5000: Fix VAG power-on handling
+ ASoC: topology: Fix endianness issue
+ usb: dwc3: gadget: Properly set maxpacket limit
+ ASoC: rsnd: Fix parent SSI start/stop in multi-SSI mode
+ ASoC: rsnd: Fix HDMI channel mapping for multi-SSI mode
+ ASoC: codecs: hdac_hdmi: Fix incorrect use of list_for_each_entry
+ remoteproc: qcom_q6v5_mss: fix a bug in q6v5_probe()
+ drm/amdgpu: Correctly initialize thermal controller for GPUs with Powerplay 
table v0 (e.g Hawaii)
+ wimax/i2400m: Fix potential urb refcnt leak
+ net: stmmac: fix enabling socfpga's ptp_ref_clock
+ net: stmmac: Fix sub-second increment
+ ASoC: rsnd: Don't treat master SSI in multi SSI setup as parent
+ ASoC: rsnd: Fix "status check failed" spam for multi-SSI
+ cifs: protect updating server->dstaddr with a spinlock
+ scripts/config: allow colons in option strings for sed
+ cifs: do not share tcons with DFS
+ tracing: Fix memory leaks in trace_events_hist.c
+ lib/mpi: Fix building for powerpc with clang
+ mac80211: sta_info: Add lockdep condition for RCU list usage
+ net: bcmgenet: suppress warnings on failed Rx SKB allocations
+ net: systemport: suppress warnings on failed Rx SKB allocations
+ drm/i915: Extend WaDisableDARBFClkGating to icl,ehl,tgl
+ sctp: Fix SHUTDOWN CTSN Ack in the peer restart case
+ Revert "software node: Simplify software_node_release() function"
+ hexagon: clean up ioremap
+ hexagon: define ioremap_uc
+ ALSA: hda: Match both PCI ID and SSID for driver blacklist
+ x86/kvm: fix a missing-prototypes "vmread_error"
+ platform/x86: GPD pocket fan: Fix error message when temp-limits are out of 
range
+ ACPI: PM: s2idle: Fix comment in acpi_s2idle_prepare_late()
+ mac80211: add ieee80211_is_any_nullfunc()
+ cgroup, netclassid: remove double cond_resched
+ libbpf: Fix readelf output parsing for Fedora
+ mm/mremap: Add comment explaining the untagging behaviour of mremap()
+ Revert "drm/amd/display: setting the DIG_MODE to the correct value."
+ tools headers UAPI: Sync copy of arm64's asm/unistd.h with the kernel sources
+ udp: document udp_rcv_segment special case for looped packets
+ PM / devfreq: Add missing locking while setting suspend_freq
+ Linux 5.4.40
+ UBUNTU: upstream stable to v5.4.40

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https://bugs.launchpad.net/bugs/1878040

Title:
  Focal update: v5.4.40 upstream stable release

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