Commit cd238effef ("docs: kbuild: convert docs to ReST and rename to
*.rst") missed a ReST header and a verbatim file content area.
Signed-off-by: Dov Murik <dovmurik@linux.vnet.ibm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
We can't cast sk_buff to rtable by (struct rtable *)hint. Use skb_rtable().
Fixes: 02b2494161 ("ipv4: use dst hint for ipv4 list receive")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yousuk Seung says:
====================
tcp: improve delivered counts in SCM_TSTAMP_ACK
Currently delivered and delivered_ce in OPT_STATS of SCM_TSTAMP_ACK do
not fully reflect the current ack being timestamped. Also they are not
in sync as the delivered count includes packets being sacked and some of
cumulatively acked but delivered_ce includes none.
This patch series updates tp->delivered and tp->delivered_ce together to
keep them in sync. It also moves generating SCM_TSTAMP_ACK to later in
tcp_clean_rtx_queue() to reflect packets being cumulatively acked up
until the current skb for sack-enabled connections.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently tp->delivered is updated in various places in tcp_ack() but
tp->delivered_ce is updated once at the end. As a result two counts in
OPT_STATS of SCM_TSTAMP_ACK timestamps generated in tcp_ack() may not be
in sync. This patch updates both counts at the same in tcp_ack().
Signed-off-by: Yousuk Seung <ysseung@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add sack_delivered to tcp_sacktag_state and count the number of sacked
and dsacked packets. This is pure refactor for future patches to improve
tracking delivered counts.
Signed-off-by: Yousuk Seung <ysseung@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pass a boolean flag that tells the ECE state of the current ack to reno
sack functions. This is pure refactor for future patches to improve
tracking delivered counts.
Signed-off-by: Yousuk Seung <ysseung@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently tp->delivered is updated with sacked packets but not
cumulatively acked when SCP_TSTAMP_ACK is timestamped. This patch moves
a tcp_ack_tstamp() call in tcp_clean_rtx_queue() to later in the loop so
that when a skb is fully acked OPT_STATS of SCM_TSTAMP_ACK will include
the current skb in the delivered count. When not fully acked
tcp_ack_tstamp() is a no-op and there is no change in behavior.
Signed-off-by: Yousuk Seung <ysseung@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
intel-pinctrl for v5.8-2
* Fix output pin value handling on Intel Baytrail
The following is an automated git shortlog grouped by driver:
baytrail:
- Fix pin being driven low for a while on gpiod_get(..., GPIOD_OUT_HIGH)
Pull cifs fixes from Steve French:
"Six cifs/smb3 fixes, three of them for stable.
Fixes xfstests 451, 313 and 316"
* tag '5.8-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: misc: Use array_size() in if-statement controlling expression
cifs: update ctime and mtime during truncate
cifs/smb3: Fix data inconsistent when punch hole
cifs/smb3: Fix data inconsistent when zero file range
cifs: Fix double add page to memcg when cifs_readpages
cifs: Fix cached_fid refcnt leak in open_shroot
Pull SCSI fixes from James Bottomley:
"Six small fixes, five in drivers and one to correct another minor
regression from cc97923a5b ("block: move dma drain handling to
scsi") where we still need the drain stub to be built in to the kernel
for the modular libata, non-modular SAS driver case"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: mptscsih: Fix read sense data size
scsi: zfcp: Fix panic on ERP timeout for previously dismissed ERP action
scsi: lpfc: Avoid another null dereference in lpfc_sli4_hba_unset()
scsi: libata: Fix the ata_scsi_dma_need_drain stub
scsi: qla2xxx: Keep initiator ports after RSCN
scsi: qla2xxx: Set NVMe status code for failed NVMe FCP request
Pull VFIO fixes from Alex Williamson:
- Fix double free of eventfd ctx (Alex Williamson)
- Fix duplicate use of capability ID (Alex Williamson)
- Fix SR-IOV VF memory enable handling (Alex Williamson)
* tag 'vfio-v5.8-rc3' of git://github.com/awilliam/linux-vfio:
vfio/pci: Fix SR-IOV VF handling with MMIO blocking
vfio/type1: Fix migration info capability ID
vfio/pci: Clear error and request eventfd ctx after releasing
Pull i2c fixes from Wolfram Sang:
"This contains a 5.8 regression fix for the Designware driver, a
register bitfield fix for the fsi driver, and a missing sanity check
for the I2C core"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: core: check returned size of emulated smbus block read
i2c: fsi: Fix the port number field in status register
i2c: designware: Adjust bus speed independently of ACPI
Prior to this patch mlx5e tls rx handler was called unconditionally on
all rx frames and the decision whether a frame is a valid tls record
is done inside that function. A function call can be expensive especially
for regular rx packet rate. To avoid this, check the tls validity before
jumping into the tls rx handler.
While at it, split between kTLS device offload rx handler and FPGA tls rx
handler using a similar method.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
All callers of mlx5e_ktls_build_netdev() check capability
before the call.
Remove the repeated check in the function.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Resync communication with HW for kTLS RX is done via the
async ICOSQs.
kTLS RX resync requests might come in bursts. To improve the
success chances for such bursts, use a larger ICOSQ.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Add global and per-channel ethtool SW stats for the device
offload.
Document the new counters in tls-offload.rst.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Implement the RX resync procedure, using the TLS async resync API.
The HW offload of TLS decryption in RX side might get out-of-sync
due to out-of-order reception of packets.
This requires SW intervention to update the HW context and get it
back in-sync.
Performance:
CPU: Intel(R) Xeon(R) CPU E5-2687W v4 @ 3.00GHz, 24 cores, HT off
NIC: ConnectX-6 Dx 100GbE dual port
Goodput (app-layer throughput) comparison:
+---------------+-------+-------+---------+
| # connections | 1 | 4 | 8 |
+---------------+-------+-------+---------+
| SW (Gbps) | 7.26 | 24.70 | 50.30 |
+---------------+-------+-------+---------+
| HW (Gbps) | 18.50 | 64.30 | 92.90 |
+---------------+-------+-------+---------+
| Speedup | 2.55x | 2.56x | 1.85x * |
+---------------+-------+-------+---------+
* After linerate is reached, diff is observed in CPU util.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This patch adds support for asynchronous resynchronization in tls_device.
Async resync follows two distinct stages:
1. The NIC driver indicates that it would like to resync on some TLS
record within the received packet (P), but the driver does not
know (yet) which of the TLS records within the packet.
At this stage, the NIC driver will query the device to find the exact
TCP sequence for resync (tcpsn), however, the driver does not wait
for the device to provide the response.
2. Eventually, the device responds, and the driver provides the tcpsn
within the resync packet to KTLS. Now, KTLS can check the tcpsn against
any processed TLS records within packet P, and also against any record
that is processed in the future within packet P.
The asynchronous resync path simplifies the device driver, as it can
save bits on the packet completion (32-bit TCP sequence), and pass this
information on an asynchronous command instead.
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Implement driver support for the kTLS RX HW offload feature.
Resync support is added in a downstream patch.
New offload contexts post their static/progress params WQEs
over the per-channel async ICOSQ, protected under a spin-lock.
The Channel/RQ is selected according to the socket's rxq index.
Feature is OFF by default. Can be turned on by:
$ ethtool -K <if> tls-hw-rx-offload on
A new TLS-RX workqueue is used to allow asynchronous addition of
steering rules, out of the NAPI context.
It will be also used in a downstream patch in the resync procedure.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Modify the implementation of the private kTLS TX HW offload context
getter and setter, so it uses the kernel API functions, instead of
a local shadow structure.
A single BUILD_BUG_ON check is sufficient, remove the duplicate.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Better separate the code into c/h files, so that kTLS internals
are exposed to the corresponding non-accel flow as follows:
- Necessary datapath functions are exposed via ktls_txrx.h.
- Necessary caps and configuration functions are exposed via ktls.h,
which became very small.
In addition, kTLS internal code sharing is done via ktls_utils.h,
which is not exposed to any non-accel file.
Add explicit WQE structures for the TLS static and progress
params, breaking the union of the static with UMR, and the progress
with PSV.
Generalize the API as a preparation for TLS RX offload support.
Move kTLS TX-specific code to the proper file.
Remove the inline tag for function in C files, let the compiler decide.
Use kzalloc/kfree for the priv_tx context.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Given a socket, the function extracts the TCP/IP{4,6} ntuple
and adds rule to steering.
Another function gets the rule and deletes it.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
The framework allows creating flow tables to steer incoming traffic of
TCP sockets to the acceleration TIRs.
This is used in downstream patches for TLS, and will be used in the
future for other offloads.
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Store the default destinations of the on-load generated TTC
(Traffic Type Classifier) rules in the ttc rules table.
Introduce TTC API functions to manipulate/restore and get the TTC rule
destination and use these API functions in arfs implementation.
This will allow a better decoupling between TTC implementation and its
users.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Take the CQ params into their respective RQ/SQ params.
Split the params build of the different ICOSQs (sync and async),
as they require different init values.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
There is an upcoming demand (in downstream patches) for
an ICOSQ to be populated out of the NAPI context, asynchronously.
There is already an existing one serving XSK-related use case.
In this patch, promote this ICOSQ to serve as general async ICOSQ,
to be used for XSK and non-XSK flows.
As part of this, the reg_umr bit of the SQ context is now set
(if capable), as the general async ICOSQ should support possible
posts of UMR WQEs.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Add explicit WQE segment structures for the TLS static and progress
params.
According to the HW spec, TISN is not part of the progress params context,
take it out of it.
Rename the control segment tisn field as it could hold either a TIS or
a TIR number.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Pull staging driver fixes from Greg KH:
"Here are a small number of tiny staging driver fixes for 5.8-rc3.
Not much here, but there were some reported problems to be fixed:
- three wfx driver fixes
- rtl8723bs driver fix
All of these have been in linux-next with no reported issues"
* tag 'staging-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
Staging: rtl8723bs: prevent buffer overflow in update_sta_support_rate()
staging: wfx: fix coherency of hif_scan() prototype
staging: wfx: drop useless loop
staging: wfx: fix AC priority
Pull USB fixes from Greg KH:
"Here are some small USB fixes for 5.8-rc3 to resolve some reported
issues.
Nothing major here:
- gadget driver fixes
- cdns3 driver fixes
- xhci fixes
- renesas_usbhs driver fixes
- some new device support with ids
- documentation update
All of these have been in linux-next with no reported issues"
* tag 'usb-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (27 commits)
usb: renesas_usbhs: getting residue from callback_result
Revert "usb: dwc3: exynos: Add support for Exynos5422 suspend clk"
xhci: Poll for U0 after disabling USB2 LPM
xhci: Return if xHCI doesn't support LPM
usb: host: xhci-mtk: avoid runtime suspend when removing hcd
xhci: Fix enumeration issue when setting max packet size for FS devices.
xhci: Fix incorrect EP_STATE_MASK
usb: cdns3: ep0: add spinlock for cdns3_check_new_setup
usb: cdns3: trace: using correct dir value
usb: cdns3: ep0: fix the test mode set incorrectly
Revert "usb: dwc3: exynos: Add support for Exynos5422 suspend clk"
usb: gadget: udc: Potential Oops in error handling code
usb: phy: tegra: Fix unnecessary check in tegra_usb_phy_probe()
usb: dwc3: pci: Fix reference count leak in dwc3_pci_resume_work
usb: cdns3: ep0: add spinlock for cdns3_check_new_setup
usb: cdns3: trace: using correct dir value
usb: cdns3: ep0: fix the test mode set incorrectly
usb: typec: tcpci_rt1711h: avoid screaming irq causing boot hangs
USB: ohci-sm501: Add missed iounmap() in remove
cdc-acm: Add DISABLE_ECHO quirk for Microchip/SMSC chip
...
Pull char/misc fixes from Greg KH:
"Some tiny char/misc driver fixes for 5.8-rc3.
The "largest" changes are in the mei driver, to resolve some reported
problems and add some new device ids. There's also a binder bugfix, an
fpga driver build fix, and some assorted habanalabs fixes.
All of these, except for the habanalabs fixes, have been in linux-next
with no reported issues. The habanalabs driver changes showed up in my
tree on Friday, but as they are totally self-contained, all should be
good there"
* tag 'char-misc-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
habanalabs: increase h/w timer when checking idle
habanalabs: Correct handling when failing to enqueue CB
habanalabs: increase GAUDI QMAN ARB WDT timeout
habanalabs: rename mmu_write() to mmu_asid_va_write()
habanalabs: use PI in MMU cache invalidation
habanalabs: block scalar load_and_exe on external queue
mei: me: add tiger lake point device ids for H platforms.
mei: me: disable mei interface on Mehlow server platforms
binder: fix null deref of proc->context
fpga: zynqmp: fix modular build
Pull EDAC fix from Borislav Petkov:
"A single fix for amd64_edac restoring the reporting of the DRAM scrub
rate on family 0x15 CPUs"
* tag 'edac_urgent_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/amd64: Read back the scrub rate PCI register on F15h
Pull dma-mapping fixes from Christoph Hellwig:
- fix dma coherent mmap in nommu (me)
- more AMD SEV fallout (David Rientjes, me)
- fix alignment in dma_common_*_remap (Eric Auger)
* tag 'dma-mapping-5.8-4' of git://git.infradead.org/users/hch/dma-mapping:
dma-remap: align the size in dma_common_*_remap()
dma-mapping: DMA_COHERENT_POOL should select GENERIC_ALLOCATOR
dma-direct: add missing set_memory_decrypted() for coherent mapping
dma-direct: check return value when encrypting or decrypting memory
dma-direct: re-encrypt memory if dma_direct_alloc_pages() fails
dma-direct: always align allocation size in dma_direct_alloc_pages()
dma-direct: mark __dma_direct_alloc_pages static
dma-direct: re-enable mmap for !CONFIG_MMU
Pull NFS client bugfixes from Anna Schumaker:
"Stable Fixes:
- xprtrdma: Fix handling of RDMA_ERROR replies
- sunrpc: Fix rollback in rpc_gssd_dummy_populate()
- pNFS/flexfiles: Fix list corruption if the mirror count changes
- NFSv4: Fix CLOSE not waiting for direct IO completion
- SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment()
Other Fixes:
- xprtrdma: Fix a use-after-free with r_xprt->rx_ep
- Fix other xprtrdma races during disconnect
- NFS: Fix memory leak of export_path"
* tag 'nfs-for-5.8-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment()
NFSv4 fix CLOSE not waiting for direct IO compeletion
pNFS/flexfiles: Fix list corruption if the mirror count changes
nfs: Fix memory leak of export_path
sunrpc: fixed rollback in rpc_gssd_dummy_populate()
xprtrdma: Fix handling of RDMA_ERROR replies
xprtrdma: Clean up disconnect
xprtrdma: Clean up synopsis of rpcrdma_flush_disconnect()
xprtrdma: Use re_connect_status safely in rpcrdma_xprt_connect()
xprtrdma: Prevent dereferencing r_xprt->rx_ep after it is freed
Pull io_uring fixes from Jens Axboe:
"Three small fixes:
- Close a corner case for polled IO resubmission (Pavel)
- Toss commands when exiting (Pavel)
- Fix SQPOLL conditional reschedule on perpetually busy submit
(Xuan)"
* tag 'io_uring-5.8-2020-06-26' of git://git.kernel.dk/linux-block:
io_uring: fix current->mm NULL dereference on exit
io_uring: fix hanging iopoll in case of -EAGAIN
io_uring: fix io_sq_thread no schedule when busy
Pull block fixes from Jens Axboe:
- NVMe pull request from Christoph:
- multipath deadlock fixes (Anton)
- NUMA fixes (Max)
- RDMA completion vector fix (Max)
- IO deadlock fix (Sagi)
- multipath reference fix (Sagi)
- NS mutation fix (Sagi)
- Use right allocator when freeing bip in error path (Chengguang)
* tag 'block-5.8-2020-06-26' of git://git.kernel.dk/linux-block:
nvme-multipath: fix bogus request queue reference put
nvme-multipath: fix deadlock due to head->lock
nvme: don't protect ns mutation with ns->head->lock
nvme-multipath: fix deadlock between ana_work and scan_work
nvme: fix possible deadlock when I/O is blocked
nvme-rdma: assign completion vector correctly
nvme-loop: initialize tagset numa value to the value of the ctrl
nvme-tcp: initialize tagset numa value to the value of the ctrl
nvme-pci: initialize tagset numa value to the value of the ctrl
nvme-pci: override the value of the controller's numa node
nvme: set initial value for controller's numa node
block: release bip in a right way in error path
Pull device mapper fixes from Mike Snitzer:
- Quite a few DM zoned target fixes and a Zone append fix in DM core.
Considering the amount of dm-zoned changes that went in during the
5.8 merge window these fixes are not that surprising.
- A few DM writecache target fixes.
- A fix to Documentation index to include DM ebs target docs.
- Small cleanup to use struct_size() in DM core's retrieve_deps().
* tag 'for-5.8/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm writecache: add cond_resched to loop in persistent_memory_claim()
dm zoned: Fix reclaim zone selection
dm zoned: Fix random zone reclaim selection
dm: update original bio sector on Zone Append
dm zoned: Fix metadata zone size check
docs: device-mapper: add dm-ebs.rst to an index file
dm ioctl: use struct_size() helper in retrieve_deps()
dm writecache: skip writecache_wait when using pmem mode
dm writecache: correct uncommitted_block when discarding uncommitted entry
dm zoned: assign max_io_len correctly
dm zoned: fix uninitialized pointer dereference
Pull kgdb fixes from Daniel Thompson:
"The main change here is a fix for a number of unsafe interactions
between kdb and the console system. The fixes are specific to kdb
(pure kgdb debugging does not use the console system at all). On
systems with an NMI then kdb, if it is enabled, must get messages to
the user despite potentially running from some "difficult" calling
contexts. These fixes avoid using the console system where we have
been provided an alternative (safer) way to interact with the user
and, if using the console system in unavoidable, use oops_in_progress
for deadlock avoidance. These fixes also ensure kdb honours the
console enable flag.
Also included is a fix that wraps kgdb trap handling in an RCU read
lock to avoids triggering diagnostic warnings. This is a wide lock
scope but this is OK because kgdb is a stop-the-world debugger. When
we stop the world we put all the CPUs into holding pens and this
inhibits RCU update anyway"
* tag 'kgdb-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
kgdb: Avoid suspicious RCU usage warning
kdb: Switch to use safer dbg_io_ops over console APIs
kdb: Make kdb_printf() console handling more robust
kdb: Check status of console prior to invoking handlers
kdb: Re-factor kdb_printf() message write code
Pull powerpc fixes from Michael Ellerman:
- A fix for a crash in nested KVM when CONFIG_DEBUG_VIRTUAL=y.
- Two minor build fixes.
Thanks to: Aneesh Kumar K.V, Arseny Solokha, Harish.
* tag 'powerpc-5.8-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
selftests/powerpc: Fix build failure in ebb tests
powerpc/kvm/book3s64: Fix kernel crash with nested kvm & DEBUG_VIRTUAL
powerpc/fsl_booke/32: Fix build with CONFIG_RANDOMIZE_BASE
Pull RISC-V fixes from Palmer Dabbelt:
"This contains a handful of fixes I'd like to target for rc3.
Most of them fix issues with the conversion of our vDSO to C. There is
also one fix to the SiFive PRCI driver that I picked up as it's
causing boot issues on the hardware.
- A fix to allow kernels with dynamic ftrace to use the vDSO.
- Some build fixes for the C vDSO functions.
- A fix to the PRCI driver's memory allocation, which was the cause
of some boot panics with FREELIST_RANDOM"
* tag 'riscv-for-linus-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fixup __vdso_gettimeofday broke dynamic ftrace
riscv: Add extern declarations for vDSO time-related functions
clk: sifive: allocate sufficient memory for struct __prci_data
riscv: Add -fPIC option to CFLAGS_vgettimeofday.o
Pull arm64 fixes from Will Deacon:
"The big fix here is to our vDSO sigreturn trampoline as, after a
painfully long stint of debugging, it turned out that fixing some of
our CFI directives in the merge window lit up a bunch of logic in
libgcc which has been shown to SEGV in some cases during asynchronous
pthread cancellation.
It looks like we can fix this by extending the directives to restore
most of the interrupted register state from the sigcontext, but it's
risky and hard to test so we opted to remove the CFI directives for
now and rely on the unwinder fallback path like we used to.
- Fix unwinding through vDSO sigreturn trampoline
- Fix build warnings by raising minimum LD version for PAC
- Whitelist some Kryo Cortex-A55 derivatives for Meltdown and SSB
- Fix perf register PC reporting for compat tasks
- Fix 'make clean' warning for arm64 signal selftests
- Fix ftrace when BTI is compiled in
- Avoid building the compat vDSO using GCC plugins"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Add KRYO{3,4}XX silver CPU cores to SSB safelist
arm64: perf: Report the PC value in REGS_ABI_32 mode
kselftest: arm64: Remove redundant clean target
arm64: kpti: Add KRYO{3, 4}XX silver CPU cores to kpti safelist
arm64: Don't insert a BTI instruction at inner labels
arm64: vdso: Don't use gcc plugins for building vgettimeofday.c
arm64: vdso: Only pass --no-eh-frame-hdr when linker supports it
arm64: Depend on newer binutils when building PAC
arm64: compat: Remove 32-bit sigreturn code from the vDSO
arm64: compat: Always use sigpage for sigreturn trampoline
arm64: compat: Allow 32-bit vdso and sigpage to co-exist
arm64: vdso: Disable dwarf unwinding through the sigreturn trampoline
