Merge branch 'next' into for-linus

Prepare input updates for 5.13 merge window.

Merge tag 'v5.12-rc7' into ecryptfs/next

Required to pick up idmapped mount changes which changed some function
parameters.

Merge tag 'v5.12-rc4' into next

Sync up with the mainline to bring in newest APIs.

Merge drm/drm-next into drm-misc-next

Noralf needs some patches in 5.12-rc3, and we've been delaying the 5.12
merge due to the swap issue so it looks like a good time.

Signed-off-by: Maxime Ripard

Merge drm/drm-next into drm-misc-next

Noralf needs some patches in 5.12-rc3, and we've been delaying the 5.12
merge due to the swap issue so it looks like a good time.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

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Merge tag 'irqchip-fixes-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

- More compatible strings for the Ingenic

Merge tag 'irqchip-fixes-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

- More compatible strings for the Ingenic irqchip (introducing the
JZ4760B SoC)
- Select GENERIC_IRQ_MULTI_HANDLER on the ARM ep93xx platform
- Drop all GENERIC_IRQ_MULTI_HANDLER selections from the irqchip
Kconfig, now relying on the architecture to get it right
- Drop the debugfs_file field from struct irq_domain, now that
debugfs can track things on its own

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Merge drm/drm-next into drm-intel-next

Sync up with upstream.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge branch 'fixes-rc2' into fixes

Merge remote-tracking branch 'net/master'

Merge commit '3e10585335b7967326ca7b4118cada0d2d00a2ab' into v5.12/vfio/next

Update to new follow_pte() definition

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from David Miller:
"Here is what we have this merge window:

1) Support SW steering for mlx5 Connect-X

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from David Miller:
"Here is what we have this merge window:

1) Support SW steering for mlx5 Connect-X6Dx, from Yevgeny Kliteynik.

2) Add RSS multi group support to octeontx2-pf driver, from Geetha
Sowjanya.

3) Add support for KS8851 PHY. From Marek Vasut.

4) Add support for GarfieldPeak bluetooth controller from Kiran K.

5) Add support for half-duplex tcan4x5x can controllers.

6) Add batch skb rx processing to bcrm63xx_enet, from Sieng Piaw
Liew.

7) Rework RX port offload infrastructure, particularly wrt, UDP
tunneling, from Jakub Kicinski.

8) Add BCM72116 PHY support, from Florian Fainelli.

9) Remove Dsa specific notifiers, they are unnecessary. From Vladimir
Oltean.

10) Add support for picosecond rx delay in dwmac-meson8b chips. From
Martin Blumenstingl.

11) Support TSO on xfrm interfaces from Eyal Birger.

12) Add support for MP_PRIO to mptcp stack, from Geliang Tang.

13) Support BCM4908 integrated switch, from Rafał Miłecki.

14) Support for directly accessing kernel module variables via module
BTF info, from Andrii Naryiko.

15) Add DASH (esktop and mobile Architecture for System Hardware)
support to r8169 driver, from Heiner Kallweit.

16) Add rx vlan filtering to dpaa2-eth, from Ionut-robert Aron.

17) Add support for 100 base0x SFP devices, from Bjarni Jonasson.

18) Support link aggregation in DSA, from Tobias Waldekranz.

19) Support for bitwidse atomics in bpf, from Brendan Jackman.

20) SmartEEE support in at803x driver, from Russell King.

21) Add support for flow based tunneling to GTP, from Pravin B Shelar.

22) Allow arbitrary number of interconnrcts in ipa, from Alex Elder.

23) TLS RX offload for bonding, from Tariq Toukan.

24) RX decap offklload support in mac80211, from Felix Fietkou.

25) devlink health saupport in octeontx2-af, from George Cherian.

26) Add TTL attr to SCM_TIMESTAMP_OPT_STATS, from Yousuk Seung

27) Delegated actionss support in mptcp, from Paolo Abeni.

28) Support receive timestamping when doin zerocopy tcp receive. From
Arjun Ray.

29) HTB offload support for mlx5, from Maxim Mikityanskiy.

30) UDP GRO forwarding, from Maxim Mikityanskiy.

31) TAPRIO offloading in dsa hellcreek driver, from Kurt Kanzenbach.

32) Weighted random twos choice algorithm for ipvs, from Darby Payne.

33) Fix netdev registration deadlock, from Johannes Berg.

34) Various conversions to new tasklet api, from EmilRenner Berthing.

35) Bulk skb allocations in veth, from Lorenzo Bianconi.

36) New ethtool interface for lane setting, from Danielle Ratson.

37) Offload failiure notifications for routes, from Amit Cohen.

38) BCM4908 support, from Rafał Miłecki.

39) Support several new iwlwifi chips, from Ihab Zhaika.

40) Flow drector support for ipv6 in i40e, from Przemyslaw Patynowski.

41) Support for mhi prrotocols, from Loic Poulain.

42) Optimize bpf program stats.

43) Implement RFC6056, for better port randomization, from Eric
Dumazet.

44) hsr tag offloading support from George McCollister.

45) Netpoll support in qede, from Bhaskar Upadhaya.

46) 2005/400g speed support in bonding 3ad mode, from Nikolay
Aleksandrov.

47) Netlink event support in mptcp, from Florian Westphal.

48) Better skbuff caching, from Alexander Lobakin.

49) MRP (Media Redundancy Protocol) offloading in DSA and a few
drivers, from Horatiu Vultur.

50) mqprio saupport in mvneta, from Maxime Chevallier.

51) Remove of_phy_attach, no longer needed, from Florian Fainelli"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1766 commits)
octeontx2-pf: Fix otx2_get_fecparam()
cteontx2-pf: cn10k: Prevent harmless double shift bugs
net: stmmac: Add PCI bus info to ethtool driver query output
ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are unnecessary
ptp: ptp_clockmatrix: Simplify code - remove unnecessary `err` variable.
ptp: ptp_clockmatrix: Coding style - tighten vertical spacing.
ptp: ptp_clockmatrix: Clean-up dev_*() messages.
ptp: ptp_clockmatrix: Remove unused header declarations.
ptp: ptp_clockmatrix: Add alignment of 1 PPS to idtcm_perout_enable.
ptp: ptp_clockmatrix: Add wait_for_sys_apll_dpll_lock.
net: stmmac: dwmac-sun8i: Add a shutdown callback
net: stmmac: dwmac-sun8i: Minor probe function cleanup
net: stmmac: dwmac-sun8i: Use reset_control_reset
net: stmmac: dwmac-sun8i: Remove unnecessary PHY power check
net: stmmac: dwmac-sun8i: Return void from PHY unpower
r8169: use macro pm_ptr
net: mdio: Remove of_phy_attach()
net: mscc: ocelot: select PACKING in the Kconfig
net: re-solve some conflicts after net -> net-next merge
net: dsa: tag_rtl4_a: Support also egress tags
...

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Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2021-02-16

The following pull-request contains BPF updates for yo

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2021-02-16

The following pull-request contains BPF updates for your *net-next* tree.

There's a small merge conflict between 7eeba1706eba ("tcp: Add receive timestamp
support for receive zerocopy.") from net-next tree and 9cacf81f8161 ("bpf: Remove
extra lock_sock for TCP_ZEROCOPY_RECEIVE") from bpf-next tree. Resolve as follows:

[...]
lock_sock(sk);
err = tcp_zerocopy_receive(sk, &zc, &tss);
err = BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sk, level, optname,
&zc, &len, err);
release_sock(sk);
[...]

We've added 116 non-merge commits during the last 27 day(s) which contain
a total of 156 files changed, 5662 insertions(+), 1489 deletions(-).

The main changes are:

1) Adds support of pointers to types with known size among global function
args to overcome the limit on max # of allowed args, from Dmitrii Banshchikov.

2) Add bpf_iter for task_vma which can be used to generate information similar
to /proc/pid/maps, from Song Liu.

3) Enable bpf_{g,s}etsockopt() from all sock_addr related program hooks. Allow
rewriting bind user ports from BPF side below the ip_unprivileged_port_start
range, both from Stanislav Fomichev.

4) Prevent recursion on fentry/fexit & sleepable programs and allow map-in-map
as well as per-cpu maps for the latter, from Alexei Starovoitov.

5) Add selftest script to run BPF CI locally. Also enable BPF ringbuffer
for sleepable programs, both from KP Singh.

6) Extend verifier to enable variable offset read/write access to the BPF
program stack, from Andrei Matei.

7) Improve tc & XDP MTU handling and add a new bpf_check_mtu() helper to
query device MTU from programs, from Jesper Dangaard Brouer.

8) Allow bpf_get_socket_cookie() helper also be called from [sleepable] BPF
tracing programs, from Florent Revest.

9) Extend x86 JIT to pad JMPs with NOPs for helping image to converge when
otherwise too many passes are required, from Gary Lin.

10) Verifier fixes on atomics with BPF_FETCH as well as function-by-function
verification both related to zero-extension handling, from Ilya Leoshkevich.

11) Better kernel build integration of resolve_btfids tool, from Jiri Olsa.

12) Batch of AF_XDP selftest cleanups and small performance improvement
for libbpf's xsk map redirect for newer kernels, from Björn Töpel.

13) Follow-up BPF doc and verifier improvements around atomics with
BPF_FETCH, from Brendan Jackman.

14) Permit zero-sized data sections e.g. if ELF .rodata section contains
read-only data from local variables, from Yonghong Song.

15) veth driver skb bulk-allocation for ndo_xdp_xmit, from Lorenzo Bianconi.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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bpf: Propagate stack bounds to registers in atomics w/ BPF_FETCH

When BPF_FETCH is set, atomic instructions load a value from memory
into a register. The current verifier code first checks via
check

bpf: Propagate stack bounds to registers in atomics w/ BPF_FETCH

When BPF_FETCH is set, atomic instructions load a value from memory
into a register. The current verifier code first checks via
check_mem_access whether we can access the memory, and then checks
via check_reg_arg whether we can write into the register.

For loads, check_reg_arg has the side-effect of marking the
register's value as unkonwn, and check_mem_access has the side effect
of propagating bounds from memory to the register. This currently only
takes effect for stack memory.

Therefore with the current order, bounds information is thrown away,
but by simply reversing the order of check_reg_arg
vs. check_mem_access, we can instead propagate bounds smartly.

A simple test is added with an infinite loop that can only be proved
unreachable if this propagation is present. This is implemented both
with C and directly in test_verifier using assembly.

Suggested-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Brendan Jackman <jackmanb@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210202135002.4024825-1-jackmanb@google.com

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