As virt_to_gfn uses virt_to_phys, it will return invalid addresses when
used with vmalloc'd addresses. This patch introduces a warning, when
virt_to_gfn is used in this way.
Signed-off-by: NSimon Leiner <simon@leiner.me>
Reviewed-by: NStefano Stabellini <sstabellini@kernel.org>
Link: https://lore.kernel.org/r/20200825093153.35500-2-simon@leiner.meSigned-off-by: NJuergen Gross <jgross@suse.com>

On some architectures (like ARM), virt_to_gfn cannot be used for
vmalloc'd memory because of its reliance on virt_to_phys. This patch
introduces a check for vmalloc'd addresses and obtains the PFN using
vmalloc_to_pfn in that case.
Signed-off-by: NSimon Leiner <simon@leiner.me>
Reviewed-by: NStefano Stabellini <sstabellini@kernel.org>
Link: https://lore.kernel.org/r/20200825093153.35500-1-simon@leiner.meSigned-off-by: NJuergen Gross <jgross@suse.com>

XEN data pointer which contains XEN specific information.

handler data is meant for interrupt handlers and not for storing irq chip
specific information as some devices require handler data to store internal
per interrupt information, e.g. pinctrl/GPIO chained interrupt handlers.

This obviously creates a conflict of interests and crashes the machine
because the XEN pointer is overwritten by the driver pointer.

As the XEN data is not handler specific it should be stored in
irqdesc::irq_data::chip_data instead.

A simple sed s/irq_[sg]et_handler_data/irq_[sg]et_chip_data/ cures that.

Cc: stable@vger.kernel.org
Reported-by: NRoman Shaposhnik <roman@zededa.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/87lfi2yckt.fsf@nanos.tec.linutronix.deSigned-off-by: NJuergen Gross <jgross@suse.com>

../arch/x86/pci/xen.c: In function ‘pci_xen_init’:
../arch/x86/pci/xen.c:410:2: error: implicit declaration of function ‘acpi_noirq_set’; did you mean ‘acpi_irq_get’? [-Werror=implicit-function-declaration]
  acpi_noirq_set();

Fixes: 88e9ca16 ("xen/pci: Use acpi_noirq_set() helper to avoid #ifdef")
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: xen-devel@lists.xenproject.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: NJuergen Gross <jgross@suse.com>

efifb_probe() will issue an error message in case the kernel is booted
as Xen dom0 from UEFI as EFI_MEMMAP won't be set in this case. Avoid
that message by calling efi_mem_desc_lookup() only if EFI_MEMMAP is set.

Fixes: 38ac0287 ("fbdev/efifb: Honour UEFI memory map attributes when mapping the FB")
Signed-off-by: NJuergen Gross <jgross@suse.com>
Acked-by: NArd Biesheuvel <ardb@kernel.org>
Acked-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NJuergen Gross <jgross@suse.com>

While importing a dmabuf it is possible that the data of the buffer
is put with offset which is indicated by the SGT offset.
Respect the offset value and forward it to the backend.
Signed-off-by: NOleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: NNoralf Trønnes <noralf@tronnes.org>
Signed-off-by: NJuergen Gross <jgross@suse.com>

This is the sync up with the canonical definition of the
display protocol in Xen.

1. Add protocol version as an integer

Version string, which is in fact an integer, is hard to handle in the
code that supports different protocol versions. To simplify that
also add the version as an integer.

2. Pass buffer offset with XENDISPL_OP_DBUF_CREATE

There are cases when display data buffer is created with non-zero
offset to the data start. Handle such cases and provide that offset
while creating a display buffer.

3. Add XENDISPL_OP_GET_EDID command

Add an optional request for reading Extended Display Identification
Data (EDID) structure which allows better configuration of the
display connectors over the configuration set in XenStore.
With this change connectors may have multiple resolutions defined
with respect to detailed timing definitions and additional properties
normally provided by displays.

If this request is not supported by the backend then visible area
is defined by the relevant XenStore's "resolution" property.

If backend provides extended display identification data (EDID) with
XENDISPL_OP_GET_EDID request then EDID values must take precedence
over the resolutions defined in XenStore.

4. Bump protocol version to 2.
Signed-off-by: NOleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20200813062113.11030-5-andr2000@gmail.comSigned-off-by: NJuergen Gross <jgross@suse.com>

Add YUYV to supported formats, so the frontend can work with the
formats used by cameras and other HW.
Signed-off-by: NOleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: NNoralf Trønnes <noralf@tronnes.org>
Link: https://lore.kernel.org/r/20200813062113.11030-4-andr2000@gmail.comSigned-off-by: NJuergen Gross <jgross@suse.com>

The patch c575b7ee: "drm/xen-front: Add support for Xen PV
display frontend" from Apr 3, 2018, leads to the following static
checker warning:

	drivers/gpu/drm/xen/xen_drm_front_gem.c:140 xen_drm_front_gem_create()
	warn: passing zero to 'ERR_CAST'

drivers/gpu/drm/xen/xen_drm_front_gem.c
   133  struct drm_gem_object *xen_drm_front_gem_create(struct drm_device *dev,
   134                                                  size_t size)
   135  {
   136          struct xen_gem_object *xen_obj;
   137
   138          xen_obj = gem_create(dev, size);
   139          if (IS_ERR_OR_NULL(xen_obj))
   140                  return ERR_CAST(xen_obj);

Fix this and the rest of misused places with IS_ERR_OR_NULL in the
driver.

Fixes:  c575b7ee: "drm/xen-front: Add support for Xen PV display frontend"
Signed-off-by: NOleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: NDan Carpenter <dan.carpenter@oracle.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200813062113.11030-3-andr2000@gmail.comSigned-off-by: NJuergen Gross <jgross@suse.com>

It is possible that the scatter-gather table during dmabuf import has
non-zero offset of the data, but user-space doesn't expect that.
Fix this by failing the import, so user-space doesn't access wrong data.

Fixes: bf8dc55b ("xen/gntdev: Implement dma-buf import functionality")
Signed-off-by: NOleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: NJuergen Gross <jgross@suse.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200813062113.11030-2-andr2000@gmail.comSigned-off-by: NJuergen Gross <jgross@suse.com>

With support for 32-bit pv guests gone pure pv-code no longer needs to
test for highmem. Dropping those tests removes the need for flushing
in some places.
Signed-off-by: NJuergen Gross <jgross@suse.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: NJuergen Gross <jgross@suse.com>

With 32-bit pv-guest support removed xen-asm_64.S can be merged with
xen-asm.S
Signed-off-by: NJuergen Gross <jgross@suse.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: NJuergen Gross <jgross@suse.com>

Xen is requiring 64-bit machines today and since Xen 4.14 it can be
built without 32-bit PV guest support. There is no need to carry the
burden of 32-bit PV guest support in the kernel any longer, as new
guests can be either HVM or PVH, or they can use a 64 bit kernel.

Remove the 32-bit Xen PV support from the kernel.
Signed-off-by: NJuergen Gross <jgross@suse.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: NJuergen Gross <jgross@suse.com>

dma_cache_maint is getting called passing a dma address which could be
different from a physical address.

Add a struct device* parameter to dma_cache_maint.

Translate the dma_addr_t parameter of dma_cache_maint by calling
dma_to_phys. Do it for the first page and all the following pages, in
case of multipage handling.
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: NCorey Minyard <cminyard@mvista.com>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Link: https://lore.kernel.org/r/20200710223427.6897-11-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

xen_dma_sync_for_cpu, xen_dma_sync_for_device, xen_arch_need_swiotlb are
getting called passing dma addresses. On some platforms dma addresses
could be different from physical addresses. Before doing any operations
on these addresses we need to convert them back to physical addresses
using dma_to_phys.

Move the arch_sync_dma_for_cpu and arch_sync_dma_for_device calls from
xen_dma_sync_for_cpu/device to swiotlb-xen.c, and add a call dma_to_phys
to do address translations there.

dma_cache_maint is fixed by the next patch.
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Tested-by: NCorey Minyard <cminyard@mvista.com>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Acked-by: NJuergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20200710223427.6897-10-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

With some devices physical addresses are different than dma addresses.
To be able to deal with these cases, we need to call phys_to_dma on
physical addresses (including machine addresses in Xen terminology)
before returning them from xen_swiotlb_alloc_coherent and
xen_swiotlb_map_page.

We also need to convert dma addresses back to physical addresses using
dma_to_phys in xen_swiotlb_free_coherent and xen_swiotlb_unmap_page if
we want to do any operations on them.

Call dma_to_phys in is_xen_swiotlb_buffer.
Introduce xen_phys_to_dma and call phys_to_dma in its implementation.
Introduce xen_dma_to_phys and call dma_to_phys in its implementation.
Call xen_phys_to_dma/xen_dma_to_phys instead of
xen_phys_to_bus/xen_bus_to_phys through swiotlb-xen.c.

Everything is taken care of by these changes except for
xen_swiotlb_alloc_coherent and xen_swiotlb_free_coherent, which need a
few explicit phys_to_dma/dma_to_phys calls.
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Tested-by: NCorey Minyard <cminyard@mvista.com>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20200710223427.6897-9-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

XEN_PFN_PHYS is only used in one place in swiotlb-xen making things more
complex than need to be.

Remove the definition of XEN_PFN_PHYS and open code the cast in the one
place where it is needed.
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20200710223427.6897-8-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

No functional changes. The parameter is unused in this patch but will be
used by next patches.
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: NCorey Minyard <cminyard@mvista.com>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Link: https://lore.kernel.org/r/20200710223427.6897-7-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

No functional changes. The parameter is unused in this patch but will be
used by next patches.
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: NCorey Minyard <cminyard@mvista.com>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Link: https://lore.kernel.org/r/20200710223427.6897-6-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

No functional changes. The parameter is unused in this patch but will be
used by next patches.
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: NCorey Minyard <cminyard@mvista.com>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Link: https://lore.kernel.org/r/20200710223427.6897-5-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

No functional changes. The parameter is unused in this patch but will be
used by next patches.
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: NCorey Minyard <cminyard@mvista.com>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Link: https://lore.kernel.org/r/20200710223427.6897-4-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

No functional changes. The parameter is unused in this patch but will be
used by next patches.
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: NCorey Minyard <cminyard@mvista.com>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Link: https://lore.kernel.org/r/20200710223427.6897-3-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

It is not strictly needed. Call virt_to_phys on xen_io_tlb_start
instead. It will be useful not to have a start_dma_addr around with the
next patches.

Note that virt_to_phys is not the same as xen_virt_to_bus but actually
it is used to compared again __pa(xen_io_tlb_start) as passed to
swiotlb_init_with_tbl, so virt_to_phys is actually what we want.
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: NCorey Minyard <cminyard@mvista.com>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Link: https://lore.kernel.org/r/20200710223427.6897-2-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

xen_alloc_coherent_pages might return pages for which virt_to_phys and
virt_to_page don't work, e.g. ioremap'ed pages.

So in xen_swiotlb_free_coherent we can't assume that virt_to_page works.
Instead add a is_vmalloc_addr check and use vmalloc_to_page on vmalloc
virt addresses.

This patch fixes the following crash at boot on RPi4 (the underlying
issue is not RPi4 specific):
https://marc.info/?l=xen-devel&m=158862573216800Signed-off-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: NStefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: NCorey Minyard <cminyard@mvista.com>
Tested-by: NRoman Shaposhnik <roman@zededa.com>
Link: https://lore.kernel.org/r/20200710223427.6897-1-sstabellini@kernel.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

This reverts commit dfd74a1e.

This has been fixed by commit dca4436d which added the out
of bounds check to __add_memory, so that trying to add blocks past
MAX_PHYSMEM_BITS will fail.

Note the check in the Xen balloon driver was bogus anyway, as it
checked the start address of the resource, but it should instead test
the end address to assert the whole resource falls below
MAX_PHYSMEM_BITS.
Signed-off-by: NRoger Pau Monné <roger.pau@citrix.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20200727091342.52325-4-roger.pau@citrix.comSigned-off-by: NJuergen Gross <jgross@suse.com>

So it can be killed, or else processes can get hung indefinitely
waiting for balloon pages.
Signed-off-by: NRoger Pau Monné <roger.pau@citrix.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200727091342.52325-3-roger.pau@citrix.comSigned-off-by: NJuergen Gross <jgross@suse.com>

target_unpopulated is incremented with nr_pages at the start of the
function, but the call to free_xenballooned_pages will only subtract
pgno number of pages, and thus the rest need to be subtracted before
returning or else accounting will be skewed.
Signed-off-by: NRoger Pau Monné <roger.pau@citrix.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200727091342.52325-2-roger.pau@citrix.comSigned-off-by: NJuergen Gross <jgross@suse.com>

Change the repeated word "as" to "as a".
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: xen-devel@lists.xenproject.org
Link: https://lore.kernel.org/r/20200726001731.19540-1-rdunlap@infradead.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

Drop the repeated word "of" in a comment.
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: xen-devel@lists.xenproject.org
Link: https://lore.kernel.org/r/20200719003317.21454-1-rdunlap@infradead.orgSigned-off-by: NJuergen Gross <jgross@suse.com>

In 2019, we introduced pin_user_pages*() and now we are converting
get_user_pages*() to the new API as appropriate. [1] & [2] could
be referred for more information. This is case 5 as per document [1].

[1] Documentation/core-api/pin_user_pages.rst

[2] "Explicit pinning of user-space pages":
        https://lwn.net/Articles/807108/Signed-off-by: NSouptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Reviewed-by: NPaul Durrant <paul@xen.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Paul Durrant <xadimgnik@gmail.com>
Link: https://lore.kernel.org/r/1594525195-28345-4-git-send-email-jrdr.linux@gmail.comSigned-off-by: NJuergen Gross <jgross@suse.com>

pages need to be marked as dirty before unpinned it in
unlock_pages() which was oversight. This is fixed now.
Signed-off-by: NSouptick Joarder <jrdr.linux@gmail.com>
Suggested-by: NJohn Hubbard <jhubbard@nvidia.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Reviewed-by: NPaul Durrant <paul@xen.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Paul Durrant <xadimgnik@gmail.com>
Link: https://lore.kernel.org/r/1594525195-28345-3-git-send-email-jrdr.linux@gmail.comSigned-off-by: NJuergen Gross <jgross@suse.com>

Previously, if lock_pages() end up partially mapping pages, it used
to return -ERRNO due to which unlock_pages() have to go through
each pages[i] till *nr_pages* to validate them. This can be avoided
by passing correct number of partially mapped pages & -ERRNO separately,
while returning from lock_pages() due to error.

With this fix unlock_pages() doesn't need to validate pages[i] till
*nr_pages* for error scenario and few condition checks can be ignored.
Signed-off-by: NSouptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Reviewed-by: NPaul Durrant <paul@xen.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Paul Durrant <xadimgnik@gmail.com>
Link: https://lore.kernel.org/r/1594525195-28345-2-git-send-email-jrdr.linux@gmail.comSigned-off-by: NJuergen Gross <jgross@suse.com>

Pull x86 fix from Ingo Molnar:
 "A single fix for a potential deadlock when printing a message about
  spurious interrupts"

* tag 'x86-urgent-2020-08-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/i8259: Use printk_deferred() to prevent deadlock

Merge tag 'kbuild-fixes-v5.8-4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - clean the generated moc file for xconfig

 - fix xconfig bugs, and revert some bad commits

* tag 'kbuild-fixes-v5.8-4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: remove redundant FORCE definition in scripts/Makefile.modpost
  kconfig: qconf: remove wrong ConfigList::firstChild()
  Revert "kconfig: qconf: don't show goback button on splitMode"
  Revert "kconfig: qconf: Change title for the item window"
  kconfig: qconf: remove "goBack" debug message
  kconfig: qconf: use delete[] instead of delete to free array
  kconfig: qconf: compile moc object separately
  kconfig: qconf: use if_changed for qconf.moc rule
  modpost: explain why we can't use strsep

Pull KVM fixes from Paolo Bonzini:
 "Bugfixes and strengthening the validity checks on inputs from new
  userspace APIs.

  Now I know why I shouldn't prepare pull requests on the weekend, it's
  hard to concentrate if your son is shouting about his latest Minecraft
  builds in your ear. Fortunately all the patches were ready and I just
  had to check the test results..."

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: SVM: Fix disable pause loop exit/pause filtering capability on SVM
  KVM: LAPIC: Prevent setting the tscdeadline timer if the lapic is hw disabled
  KVM: arm64: Don't inherit exec permission across page-table levels
  KVM: arm64: Prevent vcpu_has_ptrauth from generating OOL functions
  KVM: nVMX: check for invalid hdr.vmx.flags
  KVM: nVMX: check for required but missing VMCS12 in KVM_SET_NESTED_STATE
  selftests: kvm: do not set guest mode flag

The same code exists a few lines above.

Fixes: 436b2ac6 ("modpost: invoke modpost only when input files are updated")
Signed-off-by: NMasahiro Yamada <masahiroy@kernel.org>

This function returns the first child object, but the returned pointer
is not compatible with (ConfigItem *).

Commit cc1c08ed ("kconfig: qconf: don't show goback button on
splitMode") uncovered this issue because using the pointer from this
function would make qconf crash. (https://lkml.org/lkml/2020/7/18/411)

This function does not work. Remove.
Signed-off-by: NMasahiro Yamada <masahiroy@kernel.org>

Pull networking fixes from David Miller:

 1) Encap offset calculation is incorrect in esp6, from Sabrina Dubroca.

 2) Better parameter validation in pfkey_dump(), from Mark Salyzyn.

 3) Fix several clang issues on powerpc in selftests, from Tanner Love.

 4) cmsghdr_from_user_compat_to_kern() uses the wrong length, from Al
    Viro.

 5) Out of bounds access in mlx5e driver, from Raed Salem.

 6) Fix transfer buffer memleak in lan78xx, from Johan Havold.

 7) RCU fixups in rhashtable, from Herbert Xu.

 8) Fix ipv6 nexthop refcnt leak, from Xiyu Yang.

 9) vxlan FDB dump must be done under RCU, from Ido Schimmel.

10) Fix use after free in mlxsw, from Ido Schimmel.

11) Fix map leak in HASH_OF_MAPS bpf code, from Andrii Nakryiko.

12) Fix bug in mac80211 Tx ack status reporting, from Vasanthakumar
    Thiagarajan.

13) Fix memory leaks in IPV6_ADDRFORM code, from Cong Wang.

14) Fix bpf program reference count leaks in mlx5 during
    mlx5e_alloc_rq(), from Xin Xiong.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (86 commits)
  vxlan: fix memleak of fdb
  rds: Prevent kernel-infoleak in rds_notify_queue_get()
  net/sched: The error lable position is corrected in ct_init_module
  net/mlx5e: fix bpf_prog reference count leaks in mlx5e_alloc_rq
  net/mlx5e: E-Switch, Specify flow_source for rule with no in_port
  net/mlx5e: E-Switch, Add misc bit when misc fields changed for mirroring
  net/mlx5e: CT: Support restore ipv6 tunnel
  net: gemini: Fix missing clk_disable_unprepare() in error path of gemini_ethernet_port_probe()
  ionic: unlock queue mutex in error path
  atm: fix atm_dev refcnt leaks in atmtcp_remove_persistent
  net: ethernet: mtk_eth_soc: fix MTU warnings
  net: nixge: fix potential memory leak in nixge_probe()
  devlink: ignore -EOPNOTSUPP errors on dumpit
  rxrpc: Fix race between recvmsg and sendmsg on immediate call failure
  MAINTAINERS: Replace Thor Thayer as Altera Triple Speed Ethernet maintainer
  selftests/bpf: fix netdevsim trap_flow_action_cookie read
  ipv6: fix memory leaks on IPV6_ADDRFORM path
  net/bpfilter: Initialize pos in __bpfilter_process_sockopt
  igb: reinit_locked() should be called with rtnl_lock
  e1000e: continue to init PHY even when failed to disable ULP
  ...

Pull thread fix from Christian Brauner:
 "A simple spelling fix for dequeue_synchronous_signal()"

* tag 'for-linus-2020-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  signal: fix typo in dequeue_synchronous_signal()