Eoan update: 5.3.12 upstream stable release

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:

* scsi: core: Handle drivers which set sg_tablesize to zero
* ax88172a: fix information leak on short answers
* devlink: disallow reload operation during device cleanup
* ipmr: Fix skb headroom in ipmr_get_route().
* mlxsw: core: Enable devlink reload only on probe
* net: gemini: add missed free_netdev
* net/smc: fix fastopen for non-blocking connect()
* net: usb: qmi_wwan: add support for Foxconn T77W968 LTE modules
* slip: Fix memory leak in slip_open error path
* tcp: remove redundant new line from tcp_event_sk_skb
* dpaa2-eth: free already allocated channels on probe defer
* devlink: Add method for time-stamp on reporter's dump
* net/smc: fix refcount non-blocking connect() -part 2
* ALSA: usb-audio: Fix missing error check at mixer resolution test
* ALSA: usb-audio: not submit urb for stopped endpoint
* ALSA: usb-audio: Fix incorrect NULL check in create_yamaha_midi_quirk()
* ALSA: usb-audio: Fix incorrect size check for processing/extension units
* Btrfs: fix log context list corruption after rename exchange operation
* cgroup: freezer: call cgroup_enter_frozen() with preemption disabled in ptrace_stop()
* Input: ff-memless - kill timer in destroy()
* Input: synaptics-rmi4 - fix video buffer size
* Input: synaptics-rmi4 - disable the relative position IRQ in the F12 driver
* Input: synaptics-rmi4 - do not consume more data than we have (F11, F12)
* Input: synaptics-rmi4 - clear IRQ enables for F54
* Input: synaptics-rmi4 - destroy F54 poller workqueue when removing
* KVM: MMU: Do not treat ZONE_DEVICE pages as being reserved
* IB/hfi1: Ensure r_tid_ack is valid before building TID RDMA ACK packet
* IB/hfi1: Calculate flow weight based on QP MTU for TID RDMA
* IB/hfi1: TID RDMA WRITE should not return IB_WC_RNR_RETRY_EXC_ERR
* IB/hfi1: Ensure full Gen3 speed in a Gen4 system
* IB/hfi1: Use a common pad buffer for 9B and 16B packets
* i2c: acpi: Force bus speed to 400KHz if a Silead touchscreen is present
* UBUNTU: SAUCE: Revert "UBUNTU: SAUCE: x86/intel: Disable HPET on Intel Coffe Lake platforms"
* x86/quirks: Disable HPET on Intel Coffe Lake platforms
* ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable
* ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
* io_uring: ensure registered buffer import returns the IO length
* drm/i915: update rawclk also on resume
* Revert "drm/i915/ehl: Update MOCS table for EHL"
* ntp/y2038: Remove incorrect time_t truncation
* net: ethernet: dwmac-sun8i: Use the correct function in exit path
* iommu/vt-d: Fix QI_DEV_IOTLB_PFSID and QI_DEV_EIOTLB_PFSID macros
* mm: mempolicy: fix the wrong return value and potential pages leak of mbind
* mm: memcg: switch to css_tryget() in get_mem_cgroup_from_mm()
* mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()
* mm: slub: really fix slab walking for init_on_free
* mm/memory_hotplug: fix try_offline_node()
* mm/page_io.c: do not free shared swap slots
* mmc: sdhci-of-at91: fix quirk2 overwrite
* slcan: Fix memory leak in error path
* Linux 5.3.12
* UBUNTU: upstream stable to v5.3.12

       5.3.12 upstream stable release
       from git://git.kernel.org/