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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.12-rc7, including fixes from can, ipsec,
mac80211, wireless, and bpf trees.
No scary regressions here or in the works, but small fixes for 5.12
changes keep coming.
Current release - regressions:
- virtio: do not pull payload in skb->head
- virtio: ensure mac header is set in virtio_net_hdr_to_skb()
- Revert "net: correct sk_acceptq_is_full()"
- mptcp: revert "mptcp: provide subflow aware release function"
- ethernet: lan743x: fix ethernet frame cutoff issue
- dsa: fix type was not set for devlink port
- ethtool: remove link_mode param and derive link params from driver
- sched: htb: fix null pointer dereference on a null new_q
- wireless: iwlwifi: Fix softirq/hardirq disabling in
iwl_pcie_enqueue_hcmd()
- wireless: iwlwifi: fw: fix notification wait locking
- wireless: brcmfmac: p2p: Fix deadlock introduced by avoiding the
rtnl dependency
Current release - new code bugs:
- napi: fix hangup on napi_disable for threaded napi
- bpf: take module reference for trampoline in module
- wireless: mt76: mt7921: fix airtime reporting and related tx hangs
- wireless: iwlwifi: mvm: rfi: don't lock mvm->mutex when sending
config command
Previous releases - regressions:
- rfkill: revert back to old userspace API by default
- nfc: fix infinite loop, refcount & memory leaks in LLCP sockets
- let skb_orphan_partial wake-up waiters
- xfrm/compat: Cleanup WARN()s that can be user-triggered
- vxlan, geneve: do not modify the shared tunnel info when PMTU
triggers an ICMP reply
- can: fix msg_namelen values depending on CAN_REQUIRED_SIZE
- can: uapi: mark union inside struct can_frame packed
- sched: cls: fix action overwrite reference counting
- sched: cls: fix err handler in tcf_action_init()
- ethernet: mlxsw: fix ECN marking in tunnel decapsulation
- ethernet: nfp: Fix a use after free in nfp_bpf_ctrl_msg_rx
- ethernet: i40e: fix receiving of single packets in xsk zero-copy
mode
- ethernet: cxgb4: avoid collecting SGE_QBASE regs during traffic
Previous releases - always broken:
- bpf: Refuse non-O_RDWR flags in BPF_OBJ_GET
- bpf: Refcount task stack in bpf_get_task_stack
- bpf, x86: Validate computation of branch displacements
- ieee802154: fix many similar syzbot-found bugs
- fix NULL dereferences in netlink attribute handling
- reject unsupported operations on monitor interfaces
- fix error handling in llsec_key_alloc()
- xfrm: make ipv4 pmtu check honor ip header df
- xfrm: make hash generation lock per network namespace
- xfrm: esp: delete NETIF_F_SCTP_CRC bit from features for esp
offload
- ethtool: fix incorrect datatype in set_eee ops
- xdp: fix xdp_return_frame() kernel BUG throw for page_pool memory
model
- openvswitch: fix send of uninitialized stack memory in ct limit
reply
Misc:
- udp: add get handling for UDP_GRO sockopt"
* tag 'net-5.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (182 commits)
net: fix hangup on napi_disable for threaded napi
net: hns3: Trivial spell fix in hns3 driver
lan743x: fix ethernet frame cutoff issue
net: ipv6: check for validity before dereferencing cfg->fc_nlinfo.nlh
net: dsa: lantiq_gswip: Configure all remaining GSWIP_MII_CFG bits
net: dsa: lantiq_gswip: Don't use PHY auto polling
net: sched: sch_teql: fix null-pointer dereference
ipv6: report errors for iftoken via netlink extack
net: sched: fix err handler in tcf_action_init()
net: sched: fix action overwrite reference counting
Revert "net: sched: bump refcount for new action in ACT replace mode"
ice: fix memory leak of aRFS after resuming from suspend
i40e: Fix sparse warning: missing error code 'err'
i40e: Fix sparse error: 'vsi->netdev' could be null
i40e: Fix sparse error: uninitialized symbol 'ring'
i40e: Fix sparse errors in i40e_txrx.c
i40e: Fix parameters in aq_get_phy_register()
nl80211: fix beacon head validation
bpf, x86: Validate computation of branch displacements for x86-32
bpf, x86: Validate computation of branch displacements for x86-64
...
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Change my e-mail address to kabel@kernel.org, and fix my name in
non-code parts (add diacritical mark).
Link: https://lkml.kernel.org/r/20210325171123.28093-2-kabel@kernel.org
Signed-off-by: Marek Behún <kabel@kernel.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jassi Brar <jassisinghbrar@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The word 'rung' is a typo in below comment, fix it.
* @event_ring: The event rung index that services this channel
Signed-off-by: Jarvis Jiang <jarvis.w.jiang@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210408100220.3853-1-jarvis.w.jiang@gmail.com
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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Previous kernels allowed the BLKROSET to override the disk's read-only
status. With that situation fixed the pmem driver needs to rely on
notification events to reevaluate the disk read-only status after the
host region has been marked read-write.
Recall that when libnvdimm determines that the persistent memory has
lost persistence (for example lack of energy to flush from DRAM to FLASH
on an NVDIMM-N device) it marks the region read-only, but that state can
be overridden by the user via:
echo 0 > /sys/bus/nd/devices/regionX/read_only
...to date there is no notification that the region has restored
persistence, so the user override is the only recovery.
Fixes: 52f019d43c22 ("block: add a hard-readonly flag to struct gendisk")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Vishal Verma <vishal.l.verma@intel.com>
Tested-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/161534060720.528671.2341213328968989192.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Daniel Borkmann says:
====================
pull-request: bpf 2021-04-08
The following pull-request contains BPF updates for your *net* tree.
We've added 4 non-merge commits during the last 2 day(s) which contain
a total of 4 files changed, 31 insertions(+), 10 deletions(-).
The main changes are:
1) Validate and reject invalid JIT branch displacements, from Piotr Krysiuk.
2) Fix incorrect unhash restore as well as fwd_alloc memory accounting in
sock map, from John Fastabend.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a timer wrap issue on dra7 for the ARM architected timer.
In a typical clock configuration the timer fails to wrap after 388 days.
To work around the issue, we need to use timer-ti-dm percpu timers instead.
Let's configure dmtimer3 and 4 as percpu timers by default, and warn about
the issue if the dtb is not configured properly.
Let's do this as a single patch so it can be backported to v5.8 and later
kernels easily. Note that this patch depends on earlier timer-ti-dm
systimer posted mode fixes, and a preparatory clockevent patch
"clocksource/drivers/timer-ti-dm: Prepare to handle dra7 timer wrap issue".
For more information, please see the errata for "AM572x Sitara Processors
Silicon Revisions 1.1, 2.0":
https://www.ti.com/lit/er/sprz429m/sprz429m.pdf
The concept is based on earlier reference patches done by Tero Kristo and
Keerthy.
Cc: Keerthy <j-keerthy@ti.com>
Cc: Tero Kristo <kristo@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210323074326.28302-3-tony@atomide.com
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Tag for the input subsystem to pick up
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This provides the ability for architectures to enable kernel stack base
address offset randomization. This feature is controlled by the boot
param "randomize_kstack_offset=on/off", with its default value set by
CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT.
This feature is based on the original idea from the last public release
of PaX's RANDKSTACK feature: https://pax.grsecurity.net/docs/randkstack.txt
All the credit for the original idea goes to the PaX team. Note that
the design and implementation of this upstream randomize_kstack_offset
feature differs greatly from the RANDKSTACK feature (see below).
Reasoning for the feature:
This feature aims to make harder the various stack-based attacks that
rely on deterministic stack structure. We have had many such attacks in
past (just to name few):
https://jon.oberheide.org/files/infiltrate12-thestackisback.pdf
https://jon.oberheide.org/files/stackjacking-infiltrate11.pdf
https://googleprojectzero.blogspot.com/2016/06/exploiting-recursion-in-linux-kernel_20.html
As Linux kernel stack protections have been constantly improving
(vmap-based stack allocation with guard pages, removal of thread_info,
STACKLEAK), attackers have had to find new ways for their exploits
to work. They have done so, continuing to rely on the kernel's stack
determinism, in situations where VMAP_STACK and THREAD_INFO_IN_TASK_STRUCT
were not relevant. For example, the following recent attacks would have
been hampered if the stack offset was non-deterministic between syscalls:
https://repositorio-aberto.up.pt/bitstream/10216/125357/2/374717.pdf
(page 70: targeting the pt_regs copy with linear stack overflow)
https://a13xp0p0v.github.io/2020/02/15/CVE-2019-18683.html
(leaked stack address from one syscall as a target during next syscall)
The main idea is that since the stack offset is randomized on each system
call, it is harder for an attack to reliably land in any particular place
on the thread stack, even with address exposures, as the stack base will
change on the next syscall. Also, since randomization is performed after
placing pt_regs, the ptrace-based approach[1] to discover the randomized
offset during a long-running syscall should not be possible.
Design description:
During most of the kernel's execution, it runs on the "thread stack",
which is pretty deterministic in its structure: it is fixed in size,
and on every entry from userspace to kernel on a syscall the thread
stack starts construction from an address fetched from the per-cpu
cpu_current_top_of_stack variable. The first element to be pushed to the
thread stack is the pt_regs struct that stores all required CPU registers
and syscall parameters. Finally the specific syscall function is called,
with the stack being used as the kernel executes the resulting request.
The goal of randomize_kstack_offset feature is to add a random offset
after the pt_regs has been pushed to the stack and before the rest of the
thread stack is used during the syscall processing, and to change it every
time a process issues a syscall. The source of randomness is currently
architecture-defined (but x86 is using the low byte of rdtsc()). Future
improvements for different entropy sources is possible, but out of scope
for this patch. Further more, to add more unpredictability, new offsets
are chosen at the end of syscalls (the timing of which should be less
easy to measure from userspace than at syscall entry time), and stored
in a per-CPU variable, so that the life of the value does not stay
explicitly tied to a single task.
As suggested by Andy Lutomirski, the offset is added using alloca()
and an empty asm() statement with an output constraint, since it avoids
changes to assembly syscall entry code, to the unwinder, and provides
correct stack alignment as defined by the compiler.
In order to make this available by default with zero performance impact
for those that don't want it, it is boot-time selectable with static
branches. This way, if the overhead is not wanted, it can just be
left turned off with no performance impact.
The generated assembly for x86_64 with GCC looks like this:
...
ffffffff81003977: 65 8b 05 02 ea 00 7f mov %gs:0x7f00ea02(%rip),%eax
# 12380 <kstack_offset>
ffffffff8100397e: 25 ff 03 00 00 and $0x3ff,%eax
ffffffff81003983: 48 83 c0 0f add $0xf,%rax
ffffffff81003987: 25 f8 07 00 00 and $0x7f8,%eax
ffffffff8100398c: 48 29 c4 sub %rax,%rsp
ffffffff8100398f: 48 8d 44 24 0f lea 0xf(%rsp),%rax
ffffffff81003994: 48 83 e0 f0 and $0xfffffffffffffff0,%rax
...
As a result of the above stack alignment, this patch introduces about
5 bits of randomness after pt_regs is spilled to the thread stack on
x86_64, and 6 bits on x86_32 (since its has 1 fewer bit required for
stack alignment). The amount of entropy could be adjusted based on how
much of the stack space we wish to trade for security.
My measure of syscall performance overhead (on x86_64):
lmbench: /usr/lib/lmbench/bin/x86_64-linux-gnu/lat_syscall -N 10000 null
randomize_kstack_offset=y Simple syscall: 0.7082 microseconds
randomize_kstack_offset=n Simple syscall: 0.7016 microseconds
So, roughly 0.9% overhead growth for a no-op syscall, which is very
manageable. And for people that don't want this, it's off by default.
There are two gotchas with using the alloca() trick. First,
compilers that have Stack Clash protection (-fstack-clash-protection)
enabled by default (e.g. Ubuntu[3]) add pagesize stack probes to
any dynamic stack allocations. While the randomization offset is
always less than a page, the resulting assembly would still contain
(unreachable!) probing routines, bloating the resulting assembly. To
avoid this, -fno-stack-clash-protection is unconditionally added to
the kernel Makefile since this is the only dynamic stack allocation in
the kernel (now that VLAs have been removed) and it is provably safe
from Stack Clash style attacks.
The second gotcha with alloca() is a negative interaction with
-fstack-protector*, in that it sees the alloca() as an array allocation,
which triggers the unconditional addition of the stack canary function
pre/post-amble which slows down syscalls regardless of the static
branch. In order to avoid adding this unneeded check and its associated
performance impact, architectures need to carefully remove uses of
-fstack-protector-strong (or -fstack-protector) in the compilation units
that use the add_random_kstack() macro and to audit the resulting stack
mitigation coverage (to make sure no desired coverage disappears). No
change is visible for this on x86 because the stack protector is already
unconditionally disabled for the compilation unit, but the change is
required on arm64. There is, unfortunately, no attribute that can be
used to disable stack protector for specific functions.
Comparison to PaX RANDKSTACK feature:
The RANDKSTACK feature randomizes the location of the stack start
(cpu_current_top_of_stack), i.e. including the location of pt_regs
structure itself on the stack. Initially this patch followed the same
approach, but during the recent discussions[2], it has been determined
to be of a little value since, if ptrace functionality is available for
an attacker, they can use PTRACE_PEEKUSR/PTRACE_POKEUSR to read/write
different offsets in the pt_regs struct, observe the cache behavior of
the pt_regs accesses, and figure out the random stack offset. Another
difference is that the random offset is stored in a per-cpu variable,
rather than having it be per-thread. As a result, these implementations
differ a fair bit in their implementation details and results, though
obviously the intent is similar.
[1] https://lore.kernel.org/kernel-hardening/2236FBA76BA1254E88B949DDB74E612BA4BC57C1@IRSMSX102.ger.corp.intel.com/
[2] https://lore.kernel.org/kernel-hardening/20190329081358.30497-1-elena.reshetova@intel.com/
[3] https://lists.ubuntu.com/archives/ubuntu-devel/2019-June/040741.html
Co-developed-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210401232347.2791257-4-keescook@chromium.org
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The state of CONFIG_INIT_ON_ALLOC_DEFAULT_ON (and ...ON_FREE...) did not
change the assembly ordering of the static branches: they were always out
of line. Use the new jump_label macros to check the CONFIG settings to
default to the "expected" state, which slightly optimizes the resulting
assembly code.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Link: https://lore.kernel.org/r/20210401232347.2791257-3-keescook@chromium.org
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As shown in the comment in jump_label.h, choosing the initial state of
static branches changes the assembly layout. If the condition is expected
to be likely it's inline, and if unlikely it is out of line via a jump.
A few places in the kernel use (or could be using) a CONFIG to choose the
default state, which would give a small performance benefit to their
compile-time declared default. Provide the infrastructure to do this.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210401232347.2791257-2-keescook@chromium.org
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Some drivers clear the 'ethtool_link_ksettings' struct in their
get_link_ksettings() callback, before populating it with actual values.
Such drivers will set the new 'link_mode' field to zero, resulting in
user space receiving wrong link mode information given that zero is a
valid value for the field.
Another problem is that some drivers (notably tun) can report random
values in the 'link_mode' field. This can result in a general protection
fault when the field is used as an index to the 'link_mode_params' array
[1].
This happens because such drivers implement their set_link_ksettings()
callback by simply overwriting their private copy of
'ethtool_link_ksettings' struct with the one they get from the stack,
which is not always properly initialized.
Fix these problems by removing 'link_mode' from 'ethtool_link_ksettings'
and instead have drivers call ethtool_params_from_link_mode() with the
current link mode. The function will derive the link parameters (e.g.,
speed) from the link mode and fill them in the 'ethtool_link_ksettings'
struct.
v3:
* Remove link_mode parameter and derive the link parameters in
the driver instead of passing link_mode parameter to ethtool
and derive it there.
v2:
* Introduce 'cap_link_mode_supported' instead of adding a
validity field to 'ethtool_link_ksettings' struct.
[1]
general protection fault, probably for non-canonical address 0xdffffc00f14cc32c: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x000000078a661960-0x000000078a661967]
CPU: 0 PID: 8452 Comm: syz-executor360 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__ethtool_get_link_ksettings+0x1a3/0x3a0 net/ethtool/ioctl.c:446
Code: b7 3e fa 83 fd ff 0f 84 30 01 00 00 e8 16 b0 3e fa 48 8d 3c ed 60 d5 69 8a 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03
+38 d0 7c 08 84 d2 0f 85 b9
RSP: 0018:ffffc900019df7a0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888026136008 RCX: 0000000000000000
RDX: 00000000f14cc32c RSI: ffffffff873439ca RDI: 000000078a661960
RBP: 00000000ffff8880 R08: 00000000ffffffff R09: ffff88802613606f
R10: ffffffff873439bc R11: 0000000000000000 R12: 0000000000000000
R13: ffff88802613606c R14: ffff888011d0c210 R15: ffff888011d0c210
FS: 0000000000749300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004b60f0 CR3: 00000000185c2000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
linkinfo_prepare_data+0xfd/0x280 net/ethtool/linkinfo.c:37
ethnl_default_notify+0x1dc/0x630 net/ethtool/netlink.c:586
ethtool_notify+0xbd/0x1f0 net/ethtool/netlink.c:656
ethtool_set_link_ksettings+0x277/0x330 net/ethtool/ioctl.c:620
dev_ethtool+0x2b35/0x45d0 net/ethtool/ioctl.c:2842
dev_ioctl+0x463/0xb70 net/core/dev_ioctl.c:440
sock_do_ioctl+0x148/0x2d0 net/socket.c:1060
sock_ioctl+0x477/0x6a0 net/socket.c:1177
vfs_ioctl fs/ioctl.c:48 [inline]
__do_sys_ioctl fs/ioctl.c:753 [inline]
__se_sys_ioctl fs/ioctl.c:739 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: c8907043c6ac9 ("ethtool: Get link mode in use instead of speed and duplex parameters")
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2021-04-06
This series provides some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix remaining issues with kdoc in the ethtool headers.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Extended link state structures and enums use kdoc headers
but then do not describe any of the members.
Convert to normal comments.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into char-misc-next
Vinod writes:
phy-for-5.13
- Updates:
- Yaml conversion for mvebu-utmi binding, bcm-ns-usb2 and
bcm-ns-usb3 bindings
- Mediatek dsi and hdmi phy updates
- TI j721e-wiz updates for AM64
- Cadence-torrent phy updates for SGMII/QSGMII
- New support:
- usb3-dp phy for Qualcomm SM8250
- UTMI phy for Armada CP110
- USB phy for Qualcomm SC7280
- Binding and driver for Sparx5 ethernet serdes
* tag 'phy-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (75 commits)
phy: fix resource_size.cocci warnings
phy: Sparx5 Eth SerDes: Use direct register operations
phy: hisilicon: Use the correct HiSilicon copyright
phy: marvell: phy-mvebu-cp11i-utmi needs USB_COMMON
phy: qcom-qmp: add support for sm8250-usb3-dp phy
phy: qcom-qmp: rename common registers
phy: qcom-qmp: move DP functions to callbacks
dt-bindings: phy: qcom,qmp-usb3-dp: Add support for SM8250
dt-bindings: phy: qcom,qmp-usb3-dp-phy: move usb3 compatibles back to qcom,qmp-phy.yaml
phy: ti: j721e-wiz: Configure 'p_standard_mode' only for DP/QSGMII
dt-bindings: phy: fix dt_binding_check warning in mediatek, ufs-phy.yaml
phy: zynqmp: Handle the clock enable/disable properly
dt-bindings: phy: bcm-ns-usb3-phy: convert to yaml
dt-bindings: phy: bcm-ns-usb2-phy: convert to yaml
phy: microchip: PHY_SPARX5_SERDES should depend on ARCH_SPARX5
phy: cadence-torrent: Add delay for PIPE clock to be stable
phy: cadence-torrent: Explicitly request exclusive reset control
phy: cadence-torrent: Do not configure SERDES if it's already configured
phy: cadence-torrent: Group reset APIs and clock APIs
phy: ti: j721e-wiz: Do not configure wiz if its already configured
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next
Vinod writes:
soundwire updates for 5.13-rc1
Updates for v5.13-rc1 are:
Core:
- Ability to add quirks for masters
- static checker cleanup for bus code
Drivers:
- DMI quirks for Intel controllers
- static checker cleanup for drivers
- add auto enumeration support qcom controller
* tag 'soundwire-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: (45 commits)
soundwire: intel_init: test link->cdns
soundwire: qcom: handle return correctly in qcom_swrm_transport_params
soundwire: qcom: cleanup internal port config indexing
soundwire: qcom: wait for fifo space to be available before read/write
soundwire: qcom: add static port map support
soundwire: qcom: update port map allocation bit mask
soundwire: add static port mapping support
soundwire: stream: fix memory leak in stream config error path
soundwire: qcom: use signed variable for error return
soundwire: qcom: wait for enumeration to be complete in probe
soundwire: qcom: add auto enumeration support
soundwire: export sdw_compare_devid, sdw_extract_slave_id and sdw_slave_add
soundwire: qcom: add support to new interrupts
soundwire: qcom: update register read/write routine
soundwire: qcom: start the clock during initialization
soundwire: qcom: set continue execution flag for ignored commands
soundwire: qcom: add support to missing transport params
dt-bindings: soundwire: qcom: clarify data port bus parameters
soundwire: cadence: only prepare attached devices on clock stop
soundwire: generic_allocation: fix confusion between group and packing
...
|
|
The sole user of irq_create_identity_mapping() having been converted,
get rid of the unused helper.
Signed-off-by: Marc Zyngier <maz@kernel.org>
|
|
https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
2nd set of IIO features, cleanups etc for 5.13
Trying again as a wrong fixes tag managed to beat the checking script
I was running.
A few of these are fixes for major rework earlier in cycle.
Bulk of patches are the ad7150 pre graduation cleanup, some link
fixes in maintainers and set using the new IRQF_NO_AUTOEN flag.
Note includes a merge of a tag from tip to get the IRQF_NO_AUTOEN
support (one patch only from Barry Song)
Staging graduation
* adi,ad7150 CDC
- A lot of precursor patches cleaning it up first.
- Includes core support for timeout event ABI where after a time
a adaptive threshold jumps to fix slow tracking problems.
Cleanups and minor / late breaking fixes
* core
- Use sysfs_emit() and sysfs_emit_at() as appropriate
- Fix a bug introduced in this cycle for iio_read_channel_processed_scale()
- Fix handling of getfd ioctl as IIO_IOCTL_UNHANDLED is a valid ioctl number
- Tidy up some pointless type conversion in string formatting and odd
indentation.
* dac
- Use sysfs_emit() for powerdown attribute show() functions.
* docs
- Fix dead links due to txt to yaml binding conversions.
* treewide
- Use IRQF_NO_AUTOEN
* various
- Typo fixes in comments.
* triggers/hr-timer-trigger
- Fix an overflow handing issue.
* ad,ad7923
- Device managed functions in probe()
* ad,ad9467
- Fix kconfig dependency issue
* adi,adis16201
- Fix a wrong axis assignment that stops the driver loading.
* invensense,mpu6050
- Allow use as a standalone trigger (no channels enabled)
- Drop unnecessary manual assignment of indio_dev->modes
- Make device function in a basic way if no interrupt wired.
- Sanity check scale writes.
* semtech,sx9310
- Fix access to a variable length array in DT binding.
- Sanity check input before writing debounce register.
* st,stm32-dfsdm
- Drop __func__ from dev_dbg() and pr_debug().
* yamaha,yas530
- Include asm/unaligned.h instead of be_byteshift.h
- Fix an issue with return value on an error path.
* tag 'iio-for-5.13b-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (76 commits)
iio: inv_mpu6050: Fully validate gyro and accel scale writes
iio: sx9310: Fix write_.._debounce()
iio: sx9310: Fix access to variable DT array
iio: adc: Kconfig: make AD9467 depend on ADI_AXI_ADC symbol
iio: magnetometer: yas530: Include right header
iio: magnetometer: yas530: Fix return value on error path
iio:cdc:ad7150: Fix use of uninitialized ret
iio: hrtimer-trigger: Fix potential integer overflow in iio_hrtimer_store_sampling_frequency
iio:adc: Fix trivial typo
iio:adc:ad7476: Fix remove handling
iio:adc:ad_sigma_delta: Use IRQF_NO_AUTOEN rather than request and disable
iio:imu:adis: Use IRQF_NO_AUTOEN instead of irq request then disable
iio:chemical:scd30: Use IRQF_NO_AUTOEN to avoid irq request then disable
iio:adc:sun4i-gpadc: Use new IRQF_NO_AUTOEN flag instead of request then disable
iio:adc:nau7802: Use IRQF_NO_AUTOEN instead of request then disable
iio:adc:exynos-adc: Use new IRQF_NO_AUTOEN flag rather than separate irq_disable()
iio:adc:ad7766: Use new IRQF_NO_AUTOEN to reduce boilerplate
iio: buffer: use sysfs_attr_init() on allocated attrs
iio: trigger: Fix strange (ladder-type) indentation
iio: trigger: Replace explicit casting and wrong specifier with proper one
...
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Tag for the input subsystem to pick up
Picked up for IIO to allow similar changes.
|
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Changeset 6ced946a4bba ("dt-bindings:iio:dac:microchip,mcp4725 yaml conversion")
renamed: Documentation/devicetree/bindings/iio/dac/mcp4725.txt
to: Documentation/devicetree/bindings/iio/dac/microchip,mcp4725.yaml.
Update its cross-reference accordingly.
Fixes: 6ced946a4bba ("dt-bindings:iio:dac:microchip,mcp4725 yaml conversion")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/82fb54974e8a22be15e64343260a6de39a18edda.1617279356.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
|
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For adaptive threshold events, the current value is compared with a
(typically) low pass filtered version of the same signal that slowly
tracks large scale changes. However, sometimes a step change can
result in a large lag before the low pass filtered version begins
to track the signal again. Timeouts can be used to made an
instantaneous 'correction'. Documentation of this attribute
is added in a later patch.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20210314181511.531414-11-jic23@kernel.org
|
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The mhi_prepare_for_transfer() and mhi_unprepare_from_transfer()
APIs could use better explanation. Add details on what MHI does
when these APIs are used.
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1617311778-1254-10-git-send-email-bbhatt@codeaurora.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
|
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Some controllers can choose to skip preparation for power up.
In that case, device context is initialized based on the pre_init
flag not being set during mhi_prepare_for_power_up(). There is no
reason MHI host driver should maintain and provide controllers
with two separate paths for preparing MHI.
Going forward, all controllers will be required to call the
mhi_prepare_for_power_up() API followed by their choice of sync
or async power up. This allows MHI host driver to get rid of the
pre_init flag and sets up a common way for all controllers to use
MHI. This also helps controllers fail early on during preparation
phase in some failure cases.
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1617313309-24035-1-git-send-email-bbhatt@codeaurora.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
|
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Add reserved mapping to cover all the register in order to avoid setting
arbitrary values to newer FW which implements the reserved fields.
Fixes: 50b4a3c23646 ("net/mlx5: PPTB and PBMC register firmware command support")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
Add reserved mapping to cover all the register in order to avoid
setting arbitrary values to newer FW which implements the reserved
fields.
Fixes: a58837f52d43 ("net/mlx5e: Expose FEC feilds and related capability bit")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
The cited commit wrongly placed log_max_flow_counter field of
mlx5_ifc_flow_table_prop_layout_bits, align it to the HW spec intended
placement.
Fixes: 16f1c5bb3ed7 ("net/mlx5: Check device capability for maximum flow counters")
Signed-off-by: Raed Salem <raeds@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
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In '4da6a196f93b1' we fixed a potential unhash loop caused when
a TLS socket in a sockmap was removed from the sockmap. This
happened because the unhash operation on the TLS ctx continued
to point at the sockmap implementation of unhash even though the
psock has already been removed. The sockmap unhash handler when a
psock is removed does the following,
void sock_map_unhash(struct sock *sk)
{
void (*saved_unhash)(struct sock *sk);
struct sk_psock *psock;
rcu_read_lock();
psock = sk_psock(sk);
if (unlikely(!psock)) {
rcu_read_unlock();
if (sk->sk_prot->unhash)
sk->sk_prot->unhash(sk);
return;
}
[...]
}
The unlikely() case is there to handle the case where psock is detached
but the proto ops have not been updated yet. But, in the above case
with TLS and removed psock we never fixed sk_prot->unhash() and unhash()
points back to sock_map_unhash resulting in a loop. To fix this we added
this bit of code,
static inline void sk_psock_restore_proto(struct sock *sk,
struct sk_psock *psock)
{
sk->sk_prot->unhash = psock->saved_unhash;
This will set the sk_prot->unhash back to its saved value. This is the
correct callback for a TLS socket that has been removed from the sock_map.
Unfortunately, this also overwrites the unhash pointer for all psocks.
We effectively break sockmap unhash handling for any future socks.
Omitting the unhash operation will leave stale entries in the map if
a socket transition through unhash, but does not do close() op.
To fix set unhash correctly before calling into tls_update. This way the
TLS enabled socket will point to the saved unhash() handler.
Fixes: 4da6a196f93b1 ("bpf: Sockmap/tls, during free we may call tcp_bpf_unhash() in loop")
Reported-by: Cong Wang <xiyou.wangcong@gmail.com>
Reported-by: Lorenz Bauer <lmb@cloudflare.com>
Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/161731441904.68884.15593917809745631972.stgit@john-XPS-13-9370
|
|
Xuan Zhuo reported that commit 3226b158e67c ("net: avoid 32 x truesize
under-estimation for tiny skbs") brought a ~10% performance drop.
The reason for the performance drop was that GRO was forced
to chain sk_buff (using skb_shinfo(skb)->frag_list), which
uses more memory but also cause packet consumers to go over
a lot of overhead handling all the tiny skbs.
It turns out that virtio_net page_to_skb() has a wrong strategy :
It allocates skbs with GOOD_COPY_LEN (128) bytes in skb->head, then
copies 128 bytes from the page, before feeding the packet to GRO stack.
This was suboptimal before commit 3226b158e67c ("net: avoid 32 x truesize
under-estimation for tiny skbs") because GRO was using 2 frags per MSS,
meaning we were not packing MSS with 100% efficiency.
Fix is to pull only the ethernet header in page_to_skb()
Then, we change virtio_net_hdr_to_skb() to pull the missing
headers, instead of assuming they were already pulled by callers.
This fixes the performance regression, but could also allow virtio_net
to accept packets with more than 128bytes of headers.
Many thanks to Xuan Zhuo for his report, and his tests/help.
Fixes: 3226b158e67c ("net: avoid 32 x truesize under-estimation for tiny skbs")
Reported-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://www.spinics.net/lists/netdev/msg731397.html
Co-Developed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Some of the SoundWire device ports are statically mapped to Controller
ports during design, however there is no way to expose this information
to the controller. Controllers like Qualcomm ones use this info to setup
static bandwidth parameters for those ports.
A generic port allocation is not possible in this cases!
So this patch adds a new member m_port_map to struct sdw_slave to expose
this static map.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210315165650.13392-2-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
|
|
This is useful to assign software node reference with arguments
in a common way. Moreover, we have already couple of users that
may be converted. And by the fact, one of them is moved right here
to use the helper.
Tested-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Daniel Scally <djrscally@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210329151207.36619-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
We need the serial/tty fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
We need the staging fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
We need the driver core fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
We need the char/misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a few small driver char/misc changes for 5.12-rc6.
Nothing major here, a few fixes for reported issues:
- interconnect fixes for problems found
- fbcon syzbot-found fix
- extcon fixes
- firmware stratix10 bugfix
- MAINTAINERS file update.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
drivers: video: fbcon: fix NULL dereference in fbcon_cursor()
mei: allow map and unmap of client dma buffer only for disconnected client
MAINTAINERS: Add linux-phy list and patchwork
interconnect: Fix kerneldoc warning
firmware: stratix10-svc: reset COMMAND_RECONFIG_FLAG_PARTIAL to 0
extcon: Fix error handling in extcon_dev_register
extcon: Add stubs for extcon_register_notifier_all() functions
interconnect: core: fix error return code of icc_link_destroy()
interconnect: qcom: msm8939: remove rpm-ids from non-RPM nodes
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull serial driver fix from Greg KH:
"Here is a single serial driver fix for 5.12-rc6. Is is a revert of a
change that showed up in 5.9 that has been reported to cause problems.
It has been in linux-next for a while with no reported issues"
* tag 'tty-5.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
soc: qcom-geni-se: Cleanup the code to remove proxy votes
|
|
Pull block fixes from Jens Axboe:
- Remove comment that never came to fruition in 22 years of development
(Christoph)
- Remove unused request flag (Christoph)
- Fix for null_blk fake timeout handling (Damien)
- Fix for IOCB_NOWAIT being ignored for O_DIRECT on raw bdevs (Pavel)
- Error propagation fix for multiple split bios (Yufen)
* tag 'block-5.12-2021-04-02' of git://git.kernel.dk/linux-block:
block: remove the unused RQF_ALLOCED flag
block: update a few comments in uapi/linux/blkpg.h
block: don't ignore REQ_NOWAIT for direct IO
null_blk: fix command timeout completion handling
block: only update parent bi_status when bio fail
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix an ACPI tables management issue, an issue related to the
ACPI enumeration of devices and CPU wakeup in the ACPI processor
driver.
Specifics:
- Ensure that the memory occupied by ACPI tables on x86 will always
be reserved to prevent it from being allocated for other purposes
which was possible in some cases (Rafael Wysocki).
- Fix the ACPI device enumeration code to prevent it from attempting
to evaluate the _STA control method for devices with unmet
dependencies which is likely to fail (Hans de Goede).
- Fix the handling of CPU0 wakeup in the ACPI processor driver to
prevent CPU0 online failures from occurring (Vitaly Kuznetsov)"
* tag 'acpi-5.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: processor: Fix CPU0 wakeup in acpi_idle_play_dead()
ACPI: scan: Fix _STA getting called on devices with unmet dependencies
ACPI: tables: x86: Reserve memory occupied by ACPI tables
|
|
Alexei Starovoitov says:
====================
pull-request: bpf 2021-04-01
The following pull-request contains BPF updates for your *net* tree.
We've added 11 non-merge commits during the last 8 day(s) which contain
a total of 10 files changed, 151 insertions(+), 26 deletions(-).
The main changes are:
1) xsk creation fixes, from Ciara.
2) bpf_get_task_stack fix, from Dave.
3) trampoline in modules fix, from Jiri.
4) bpf_obj_get fix for links and progs, from Lorenz.
5) struct_ops progs must be gpl compatible fix, from Toke.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
Compiler is not happy:
CC drivers/base/platform.o
drivers/base/platform.c:1557:20: warning: no previous prototype for ‘early_platform_cleanup’ [-Wmissing-prototypes]
1557 | void __weak __init early_platform_cleanup(void) { }
| ^~~~~~~~~~~~~~~~~~~~~~
Declare early_platform_cleanup() prototype in the header to make everyone happy.
Fixes: eecd37e105f0 ("drivers: Fix boot problem on SuperH")
Cc: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210331150525.59223-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Sometimes the clients of nvmem just want to get a number out of
nvmem. They don't want to think about exactly how many bytes the nvmem
cell took up. They just want the number. Let's make it easy.
In general this concept is useful because nvmem space is precious and
usually the fewest bits are allocated that will hold a given value on
a given system. However, even though small numbers might be fine on
one system that doesn't mean that logically the number couldn't be
bigger. Imagine nvmem containing a max frequency for a component. On
one system perhaps that fits in 16 bits. On another system it might
fit in 32 bits. The code reading this number doesn't care--it just
wants the number.
We'll provide two functions: nvmem_cell_read_variable_le_u32() and
nvmem_cell_read_variable_le_u64().
Comparing these to the existing functions like nvmem_cell_read_u32():
* These new functions have no problems if the value was stored in
nvmem in fewer bytes. It's OK to use these function as long as the
value stored will fit in 32-bits (or 64-bits).
* These functions avoid problems that the earlier APIs had with bit
offsets. For instance, you can't use nvmem_cell_read_u32() to read a
value has nbits=32 and bit_offset=4 because the nvmem cell must be
at least 5 bytes big to hold this value. The new API accounts for
this and works fine.
* These functions make it very explicit that they assume that the
number was stored in little endian format. The old functions made
this assumption whenever bit_offset was non-zero (see
nvmem_shift_read_buffer_in_place()) but didn't whenever the
bit_offset was zero.
NOTE: it's assumed that we don't need an 8-bit or 16-bit version of
this function. The 32-bit version of the function can be used to read
8-bit or 16-bit data.
At the moment, I'm only adding the "unsigned" versions of these
functions, but if it ends up being useful someone could add a "signed"
version that did 2's complement sign extension.
At the moment, I'm only adding the "little endian" versions of these
functions. Adding the "big endian" version would require adding "big
endian" support to nvmem_shift_read_buffer_in_place().
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210330111241.19401-7-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Pull drm fixes from Dave Airlie:
"Things have settled down in time for Easter, a random smattering of
small fixes across a few drivers.
I'm guessing though there might be some i915 and misc fixes out there
I haven't gotten yet, but since today is a public holiday here, I'm
sending this early so I can have the day off, I'll see if more
requests come in and decide what to do with them later.
amdgpu:
- Polaris idle power fix
- VM fix
- Vangogh S3 fix
- Fixes for non-4K page sizes
amdkfd:
- dqm fence memory corruption fix
tegra:
- lockdep warning fix
- runtine PM reference fix
- display controller fix
- PLL Fix
imx:
- memory leak in error path fix
- LDB driver channel registration fix
- oob array warning in LDB driver
exynos
- unused header file removal"
* tag 'drm-fixes-2021-04-02' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu: check alignment on CPU page for bo map
drm/amdgpu: Set a suitable dev_info.gart_page_size
drm/amdgpu/vangogh: don't check for dpm in is_dpm_running when in suspend
drm/amdkfd: dqm fence memory corruption
drm/tegra: sor: Grab runtime PM reference across reset
drm/tegra: dc: Restore coupling of display controllers
gpu: host1x: Use different lock classes for each client
drm/tegra: dc: Don't set PLL clock to 0Hz
drm/amdgpu: fix offset calculation in amdgpu_vm_bo_clear_mappings()
drm/amd/pm: no need to force MCLK to highest when no display connected
drm/exynos/decon5433: Remove the unused include statements
drm/imx: imx-ldb: fix out of bounds array access warning
drm/imx: imx-ldb: Register LDB channel1 when it is the only channel to be used
drm/imx: fix memory leak when fails to init
|
|
ssh://git.freedesktop.org/git/tegra/linux into drm-fixes
drm/tegra: Fixes for v5.12-rc6
This contains a couple of fixes for various issues such as lockdep
warnings, runtime PM references, coupled display controllers and
misconfigured PLLs.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210401163352.3348296-1-thierry.reding@gmail.com
|
|
MHI WWAN modems support downloading firmware to NAND or eMMC
using Firehose protocol with process as follows:
1. Modem boots up, enters AMSS execution environment and the
device later enters EDL (Emergency Download) mode through any
mechanism host can use such as a diag command.
2. Modem enters SYS_ERROR, MHI host handles SYS_ERROR transition.
3. EDL image for device to enter 'Flash Programmer' execution
environment is then flashed via BHI interface from host.
4. Modem enters MHI READY -> M0 and sends the Flash Programmer
execution environment change to host.
5. Following that, EDL/FIREHOSE channels (34, 35) are made
available from the host.
6. User space tool for downloading firmware image to modem over
the EDL channels using Firehose protocol. Link to USB flashing
tool: https://git.linaro.org/landing-teams/working/qualcomm/qdl.git/
Make the necessary changes to allow for this sequence to occur and
allow using the Flash Programmer execution environment.
Signed-off-by: Carl Yin <carl.yin@quectel.com>
Co-developed-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1617067704-28850-5-git-send-email-bbhatt@codeaurora.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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Commit 924a9bc362a5 ("net: check if protocol extracted by virtio_net_hdr_set_proto is correct")
added a call to dev_parse_header_protocol() but mac_header is not yet set.
This means that eth_hdr() reads complete garbage, and syzbot complained about it [1]
This patch resets mac_header earlier, to get more coverage about this change.
Audit of virtio_net_hdr_to_skb() callers shows that this change should be safe.
[1]
BUG: KASAN: use-after-free in eth_header_parse_protocol+0xdc/0xe0 net/ethernet/eth.c:282
Read of size 2 at addr ffff888017a6200b by task syz-executor313/8409
CPU: 1 PID: 8409 Comm: syz-executor313 Not tainted 5.12.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x141/0x1d7 lib/dump_stack.c:120
print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:232
__kasan_report mm/kasan/report.c:399 [inline]
kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:416
eth_header_parse_protocol+0xdc/0xe0 net/ethernet/eth.c:282
dev_parse_header_protocol include/linux/netdevice.h:3177 [inline]
virtio_net_hdr_to_skb.constprop.0+0x99d/0xcd0 include/linux/virtio_net.h:83
packet_snd net/packet/af_packet.c:2994 [inline]
packet_sendmsg+0x2325/0x52b0 net/packet/af_packet.c:3031
sock_sendmsg_nosec net/socket.c:654 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:674
sock_no_sendpage+0xf3/0x130 net/core/sock.c:2860
kernel_sendpage.part.0+0x1ab/0x350 net/socket.c:3631
kernel_sendpage net/socket.c:3628 [inline]
sock_sendpage+0xe5/0x140 net/socket.c:947
pipe_to_sendpage+0x2ad/0x380 fs/splice.c:364
splice_from_pipe_feed fs/splice.c:418 [inline]
__splice_from_pipe+0x43e/0x8a0 fs/splice.c:562
splice_from_pipe fs/splice.c:597 [inline]
generic_splice_sendpage+0xd4/0x140 fs/splice.c:746
do_splice_from fs/splice.c:767 [inline]
do_splice+0xb7e/0x1940 fs/splice.c:1079
__do_splice+0x134/0x250 fs/splice.c:1144
__do_sys_splice fs/splice.c:1350 [inline]
__se_sys_splice fs/splice.c:1332 [inline]
__x64_sys_splice+0x198/0x250 fs/splice.c:1332
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
Fixes: 924a9bc362a5 ("net: check if protocol extracted by virtio_net_hdr_set_proto is correct")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Balazs Nemeth <bnemeth@redhat.com>
Cc: Willem de Bruijn <willemb@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A 16-bit limit is a more common limit than I had realised. Make it
generally available.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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To avoid false lockdep warnings, give each client lock a different
lock class, passed from the initialization site by macro.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Exporting these three functions makes sense as it can be used by
other controllers like Qualcomm during auto-enumeration!
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210330144719.13284-8-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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For some reason we don't have an enum for this concept. Add
definitions following Table 102 of the SoundWire 1.2 specification.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20210323050701.23760-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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