Add additional test cases to `fib_lookup.c` prog_test.
These test cases add a new /24 network to the previously unused veth2
device, removes the directly connected route from the main routing table
and moves it to table 100.
The first test case then confirms a fib lookup for a remote address in
this directly connected network, using the main routing table fails.
The second test case ensures the same fib lookup using table 100 succeeds.
An additional pair of tests which function in the same manner are added
for IPv6.
Signed-off-by: Louis DeLosSantos <louis.delos.devel@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230505-bpf-add-tbid-fib-lookup-v2-2-0a31c22c748c@gmail.com
Add ability to specify routing table ID to the `bpf_fib_lookup` BPF
helper.
A new field `tbid` is added to `struct bpf_fib_lookup` used as
parameters to the `bpf_fib_lookup` BPF helper.
When the helper is called with the `BPF_FIB_LOOKUP_DIRECT` and
`BPF_FIB_LOOKUP_TBID` flags the `tbid` field in `struct bpf_fib_lookup`
will be used as the table ID for the fib lookup.
If the `tbid` does not exist the fib lookup will fail with
`BPF_FIB_LKUP_RET_NOT_FWDED`.
The `tbid` field becomes a union over the vlan related output fields
in `struct bpf_fib_lookup` and will be zeroed immediately after usage.
This functionality is useful in containerized environments.
For instance, if a CNI wants to dictate the next-hop for traffic leaving
a container it can create a container-specific routing table and perform
a fib lookup against this table in a "host-net-namespace-side" TC program.
This functionality also allows `ip rule` like functionality at the TC
layer, allowing an eBPF program to pick a routing table based on some
aspect of the sk_buff.
As a concrete use case, this feature will be used in Cilium's SRv6 L3VPN
datapath.
When egress traffic leaves a Pod an eBPF program attached by Cilium will
determine which VRF the egress traffic should target, and then perform a
FIB lookup in a specific table representing this VRF's FIB.
Signed-off-by: Louis DeLosSantos <louis.delos.devel@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230505-bpf-add-tbid-fib-lookup-v2-1-0a31c22c748c@gmail.com
The Linux Kernel currently only requires make v3.82 while the grouped
target functionality requires make v4.3. Removed the grouped target
introduced in 4ce1f694eb ("selinux: ensure av_permissions.h is
built when needed") as well as the multiple header file targets in
the make rule. This effectively reverts the problem commit.
We will revisit this change when make >= 4.3 is required by the rest
of the kernel.
Cc: stable@vger.kernel.org
Fixes: 4ce1f694eb ("selinux: ensure av_permissions.h is built when needed")
Reported-by: Erwan Velu <e.velu@criteo.com>
Reported-by: Luiz Capitulino <luizcap@amazon.com>
Tested-by: Luiz Capitulino <luizcap@amazon.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
1. Several older cleanups and minor improvements like dropping redundant
match function, fixing indentation and typos, simplifying sysfs
attribute show, removing redundant variable initializations, using max()
instead of open-coding it and constifying pointer to
struct hwmon_channel_info.
2. w1_therm: fix inverted lock handling causing spurious temperature
reads.
3. sgi: Use strscpy() over strlcpy().
4. w1 bus fixes:
- Correct missing OF node reference put in error path.
- Correct iterating over master device list while removing items from
it.
- Don't use loop iterator past the loop.
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Merge tag 'w1-drv-6.5' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-w1 into char-misc-next
Krzysztof writes:
1-Wire bus drivers for v6.5
1. Several older cleanups and minor improvements like dropping redundant
match function, fixing indentation and typos, simplifying sysfs
attribute show, removing redundant variable initializations, using max()
instead of open-coding it and constifying pointer to
struct hwmon_channel_info.
2. w1_therm: fix inverted lock handling causing spurious temperature
reads.
3. sgi: Use strscpy() over strlcpy().
4. w1 bus fixes:
- Correct missing OF node reference put in error path.
- Correct iterating over master device list while removing items from
it.
- Don't use loop iterator past the loop.
* tag 'w1-drv-6.5' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-w1:
w1: Replace usage of found with dedicated list iterator variable
w1: therm: constify pointers to hwmon_channel_info
w1: Add missing of_node_put() in w1.c
w1: no need to initialise statics to 0
w1: ds2438: remove redundant initialization of variable crc
w1: w1_therm: fix typo in comment
w1: w1_therm: Use max() instead of doing it manually
w1: fix loop in w1_fini()
w1: remove redundant initialization to variable result
w1: Simplify the atribute show
w1: Fix Kconfig indentation
w1: sgi: move from strlcpy with unused retval to strscpy
w1: Remove driver match function
w1: w1_therm: fix locking behavior in convert_t
The struct mmu_rb_ops function pointers .insert, .invalidate were only
used to increment and decrement struct sdma_mmu_node.refcount.
With the deletion of struct sdma_mmu_node.refcount and the addition of
struct mmu_rb_node.refcount these function pointers are not called and
there are no implementations of them. So it is safe to delete these from
struct mmu_rb_ops.
Link: https://lore.kernel.org/r/168451526508.3702129.8677714753157495310.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Brendan Cunningham <bcunningham@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Add kref_read() of mmu_rb_node.refcount in hfi1_mmu_rb_template-type
tracepoint output.
Change hfi1_mmu_rb_template tracepoint to take a struct mmu_rb_node* and
record the values it needs from that. This makes the trace_hfi1_mmu*()
calls shorter and easier to read.
Add hfi1_mmu_release_node() tracepoint before all
mmu_rb_node->handler->ops->remove() calls.
Make hfi1_mmu_rb_search() tracepoint its own tracepoint type separate
from hfi1_mmu_rb_template since hfi1_mmu_rb_search() does not take a
struct mmu_rb_node*.
Link: https://lore.kernel.org/r/168451525987.3702129.12824880387615916700.stgit@awfm-02.cornelisnetworks.com
Reviewed-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Brendan Cunningham <bcunningham@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The hfi1 user SDMA pinned-page cache will leave a stale cache entry when
the cache-entry's virtual address range is invalidated but that cache
entry is in-use by an outstanding SDMA request.
Subsequent user SDMA requests with buffers in or spanning the virtual
address range of the stale cache entry will result in packets constructed
from the wrong memory, the physical pages pointed to by the stale cache
entry.
To fix this, remove mmu_rb_node cache entries from the mmu_rb_handler
cache independent of the cache entry's refcount. Add 'struct kref
refcount' to struct mmu_rb_node and manage mmu_rb_node lifetime with
kref_get() and kref_put().
mmu_rb_node.refcount makes sdma_mmu_node.refcount redundant. Remove
'atomic_t refcount' from struct sdma_mmu_node and change sdma_mmu_node
code to use mmu_rb_node.refcount.
Move the mmu_rb_handler destructor call after a
wait-for-SDMA-request-completion call so mmu_rb_nodes that need
mmu_rb_handler's workqueue to queue themselves up for destruction from an
interrupt context may do so.
Fixes: f48ad614c1 ("IB/hfi1: Move driver out of staging")
Fixes: 00cbce5cbf ("IB/hfi1: Fix bugs with non-PAGE_SIZE-end multi-iovec user SDMA requests")
Link: https://lore.kernel.org/r/168451393605.3700681.13493776139032178861.stgit@awfm-02.cornelisnetworks.com
Reviewed-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Brendan Cunningham <bcunningham@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Add the '-@' DTC option for the Raspberry Pi devices. This option
populates the '__symbols__' node that contains all the necessary symbols
for supporting device-tree overlays (for instance from the firmware or
the bootloader) on these devices.
The Rasbperry Pi devices are well known for their GPIO header, that
allow various "HATs" or other modules do be connected and this enables
users to create out-of-tree device-tree overlays for these modules.
Please note that this change does increase the size of the resulting DTB
by ~40%. For example, with v6.4-rc1 increase in size is as follows:
bcm2711-rpi-400.dtb 27556 -> 38141 bytes
bcm2711-rpi-4-b.dtb 27484 -> 38069 bytes
bcm2711-rpi-cm4-io.dtb 27373 -> 38076 bytes
bcm2835-rpi-a.dtb 12879 -> 18235 bytes
bcm2835-rpi-a-plus.dtb 13015 -> 18371 bytes
bcm2835-rpi-b.dtb 12997 -> 18377 bytes
bcm2835-rpi-b-plus.dtb 13237 -> 18666 bytes
bcm2835-rpi-b-rev2.dtb 13085 -> 18514 bytes
bcm2835-rpi-cm1-io1.dtb 13109 -> 18528 bytes
bcm2835-rpi-zero.dtb 12923 -> 18311 bytes
bcm2835-rpi-zero-w.dtb 13449 -> 18889 bytes
bcm2836-rpi-2-b.dtb 14500 -> 20252 bytes
bcm2837-rpi-3-a-plus.dtb 14930 -> 20713 bytes
bcm2837-rpi-3-b.dtb 15107 -> 20979 bytes
bcm2837-rpi-3-b-plus.dtb 15463 -> 21443 bytes
bcm2837-rpi-cm3-io3.dtb 14429 -> 20098 bytes
bcm2837-rpi-zero-2-w.dtb 14781 -> 20524 bytes
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Link: https://lore.kernel.org/r/20220410225940.135744-3-aurelien@aurel32.net
[ukleinek: rebased to v6.4-rc1]
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Add the '-@' DTC option for the Raspberry Pi devices. This option
populates the '__symbols__' node that contains all the necessary symbols
for supporting device-tree overlays (for instance from the firmware or
the bootloader) on these devices.
The Rasbperry Pi devices are well known for their GPIO header, that
allow various "HATs" or other modules do be connected and this enables
users to create out-of-tree device-tree overlays for these modules.
Please note that this change does increase the size of the resulting DTB
by ~40%. For example, with v6.4-rc1 increase in size is as follows:
bcm2711-rpi-400.dtb 27556 -> 38141 bytes
bcm2711-rpi-4-b.dtb 27484 -> 38069 bytes
bcm2711-rpi-cm4-io.dtb 27373 -> 38076 bytes
bcm2837-rpi-3-a-plus.dtb 14930 -> 20713 bytes
bcm2837-rpi-3-b.dtb 15107 -> 20979 bytes
bcm2837-rpi-3-b-plus.dtb 15463 -> 21443 bytes
bcm2837-rpi-cm3-io3.dtb 14429 -> 20098 bytes
bcm2837-rpi-zero-2-w.dtb 14781 -> 20524 bytes
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Link: https://lore.kernel.org/r/20220410225940.135744-2-aurelien@aurel32.net
[ukleinek: rebased to v6.4, replaced by a single assignment to DTC_FLAGS]
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
With PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE events opening on
multiple PMUs, the test expectations need updating to test for
multiple events. TODOs are added to document existing hybrid perf
bugs.
Tested on hybrid alderlake and non-hybrid tigerlake.
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230601082954.754318-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
There is a reference count error in error path code and a potential race
in check_rkey() in rxe_resp.c. When looking up the rkey for a memory
window the reference to the mw from rxe_lookup_mw() is dropped before a
reference is taken on the mr referenced by the mw. If the mr is destroyed
immediately after the call to rxe_put(mw) the mr pointer is unprotected
and may end up pointing at freed memory. The rxe_get(mr) call should take
place before the rxe_put(mw) call.
All errors in check_rkey() call rxe_put(mw) if mw is not NULL but it was
already called after the above. The mw pointer should be set to NULL after
the rxe_put(mw) call to prevent this from happening.
Fixes: cdd0b85675 ("RDMA/rxe: Implement memory access through MWs")
Link: https://lore.kernel.org/r/20230517211509.1819998-1-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Numeric events are either raw events or those with ABI defined numbers
matched by the lexer. PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE events
should wildcard match on hybrid systems. So "cycles" should match each
PMU type with an extended type, not just PERF_TYPE_HARDWARE.
Change wildcard matching to add the event even if wildcard PMU
scanning fails, there will be no extended type but this best matches
previous behavior.
Only set the extended type when the event type supports it and when
perf_pmus__supports_extended_type is true. This new function returns
true if >1 core PMU and avoids potential errors on older kernels.
Modify evsel__compute_group_pmu_name using a helper
perf_pmu__is_software to determine when grouping should occur. Try to
use PMUs, and evsel__find_pmu, as being more dependable than
evsel->pmu_name.
Set a parse events error if a hardware term's PMU lookup fails, to
provide extra diagnostics.
Fixes: 8bc75f699c ("perf parse-events: Support wildcards on raw events")
Reported-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230601082954.754318-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In rxe_net.c a received packet, from udp or loopback, is passed to
rxe_rcv() in rxe_recv.c as a udp packet. I.e. skb->data is pointing at the
udp header. But rxe_rcv() makes length checks to verify the packet is long
enough to hold the roce headers as if it were a roce
packet. I.e. skb->data pointing at the bth header. A runt packet would
appear to have 8 more bytes than it actually does which may lead to
incorrect behavior.
This patch calls skb_pull() to adjust the skb to point at the bth header
before calling rxe_rcv() which fixes this error.
Fixes: 8700e3e7c4 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20230517172242.1806340-1-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
It is often useful to know not just the attribute and perf_event_open()
details when opening an evsel, but also the evsel's name. Add this debug
output for verbose 3 so that it won't interfere with the current verbose
2 output.
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230601082954.754318-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Flip the return value correcting a bug.
Fixes: 6b9da26070 ("perf pmu: Remove is_pmu_hybrid")
Reported-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230601082954.754318-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'mlx5-fixes-2023-05-31' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2023-05-31
This series provides bug fixes to mlx5 driver.
* tag 'mlx5-fixes-2023-05-31' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: Read embedded cpu after init bit cleared
net/mlx5e: Fix error handling in mlx5e_refresh_tirs
net/mlx5: Ensure af_desc.mask is properly initialized
net/mlx5: Fix setting of irq->map.index for static IRQ case
net/mlx5: Remove rmap also in case dynamic MSIX not supported
====================
Link: https://lore.kernel.org/r/20230601031051.131529-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Fixes for spurious Keep Alive timeouts (Uday)
- Fix for command type check on passthrough actions (Min)
- Fix for nvme command name for error logging (Christoph)
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Merge tag 'nvme-6.4-2023-06-01' of git://git.infradead.org/nvme into block-6.4
Pull NVMe fixes from Keith:
"nvme fixes for Linux 6.4
- Fixes for spurious Keep Alive timeouts (Uday)
- Fix for command type check on passthrough actions (Min)
- Fix for nvme command name for error logging (Christoph)"
* tag 'nvme-6.4-2023-06-01' of git://git.infradead.org/nvme:
nvme: fix the name of Zone Append for verbose logging
nvme: improve handling of long keep alives
nvme: check IO start time when deciding to defer KA
nvme: double KA polling frequency to avoid KATO with TBKAS on
nvme: fix miss command type check
For RISC-V, when tracing with tracepoint events, the IP and status are
set to 0, preventing the perf code parsing the callchain and resolving
the symbols correctly.
./ply 'tracepoint:kmem/kmem_cache_alloc { @[stack]=count(); }'
@:
{ <STACKID4294967282> }: 1
The fix is to implement perf_arch_fetch_caller_regs for riscv, which
fills several necessary registers used for callchain unwinding,
including epc, sp, s0 and status. It's similar to commit b3eac0265b
("arm: perf: Fix callchain parse error with kernel tracepoint events")
and commit 5b09a094f2 ("arm64: perf: Fix callchain parse error with
kernel tracepoint events").
With this patch, callchain can be parsed correctly as:
./ply 'tracepoint:kmem/kmem_cache_alloc { @[stack]=count(); }'
@:
{
__traceiter_kmem_cache_alloc+68
__traceiter_kmem_cache_alloc+68
kmem_cache_alloc+354
__sigqueue_alloc+94
__send_signal_locked+646
send_signal_locked+154
do_send_sig_info+84
__kill_pgrp_info+130
kill_pgrp+60
isig+150
n_tty_receive_signal_char+36
n_tty_receive_buf_standard+2214
n_tty_receive_buf_common+280
n_tty_receive_buf2+26
tty_ldisc_receive_buf+34
tty_port_default_receive_buf+62
flush_to_ldisc+158
process_one_work+458
worker_thread+138
kthread+178
riscv_cpufeature_patch_func+832
}: 1
Signed-off-by: Ism Hong <ism.hong@gmail.com>
Link: https://lore.kernel.org/r/20230601095355.1168910-1-ism.hong@gmail.com
Fixes: 178e9fc47a ("perf: riscv: preliminary RISC-V support")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Mat Martineau says:
====================
mptcp: Fixes for connect timeout, access annotations, and subflow init
Patch 1 allows the SO_SNDTIMEO sockopt to correctly change the connect
timeout on MPTCP sockets.
Patches 2-5 add READ_ONCE()/WRITE_ONCE() annotations to fix KCSAN issues.
Patch 6 correctly initializes some subflow fields on outgoing connections.
====================
Link: https://lore.kernel.org/r/20230531-send-net-20230531-v1-0-47750c420571@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Active subflow are inserted into the connection list at creation time.
When the MPJ handshake completes successfully, a new subflow creation
netlink event is generated correctly, but the current code wrongly
avoid initializing a couple of subflow data.
The above will cause misbehavior on a few exceptional events: unneeded
mptcp-level retransmission on msk-level sequence wrap-around and infinite
mapping fallback even when a MPJ socket is present.
Address the issue factoring out the needed initialization in a new helper
and invoking the latter from __mptcp_finish_join() time for passive
subflow and from mptcp_finish_join() for active ones.
Fixes: 0530020a7c ("mptcp: track and update contiguous data status")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Christoph reported the mptcp variant of a recently addressed plain
TCP issue. Similar to commit e14cadfd80 ("tcp: add annotations around
sk->sk_shutdown accesses") add READ/WRITE ONCE annotations to silence
KCSAN reports around lockless sk_shutdown access.
Fixes: 71ba088ce0 ("mptcp: cleanup accept and poll")
Reported-by: Christoph Paasch <cpaasch@apple.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/401
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The first subflow socket is accessed outside the msk socket lock
by mptcp_subflow_fail(), we need to annotate each write access
with WRITE_ONCE, but a few spots still lacks it.
Fixes: 76a13b3157 ("mptcp: invoke MP_FAIL response when needed")
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When the msk socket is cloned at MPC handshake time, a few
fields are initialized in a racy way outside mptcp_sk_clone()
and the msk socket lock.
The above is due historical reasons: before commit a88d0092b2
("mptcp: simplify subflow_syn_recv_sock()") as the first subflow socket
carrying all the needed date was not available yet at msk creation
time
We can now refactor the code moving the missing initialization bit
under the socket lock, removing the init race and avoiding some
code duplication.
This will also simplify the next patch, as all msk->first write
access are now under the msk socket lock.
Fixes: 0397c6d85f ("mptcp: keep unaccepted MPC subflow into join list")
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The MPTCP can access the first subflow socket in a few spots
outside the socket lock scope. That is actually safe, as MPTCP
will delete the socket itself only after the msk sock close().
Still the such accesses causes a few KCSAN splats, as reported
by Christoph. Silence the harmless warning adding a few annotation
around the relevant accesses.
Fixes: 71ba088ce0 ("mptcp: cleanup accept and poll")
Reported-by: Christoph Paasch <cpaasch@apple.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/402
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ondrej reported a functional issue WRT timeout handling on connect
with a nice reproducer.
The problem is that the current mptcp connect waits for both the
MPTCP socket level timeout, and the first subflow socket timeout.
The latter is not influenced/touched by the exposed setsockopt().
Overall the above makes the SO_SNDTIMEO a no-op on connect.
Since mptcp_connect is invoked via inet_stream_connect and the
latter properly handle the MPTCP level timeout, we can address the
issue making the nested subflow level connect always unblocking.
This also allow simplifying a bit the code, dropping an ugly hack
to handle the fastopen and custom proto_ops connect.
The issues predates the blamed commit below, but the current resolution
requires the infrastructure introduced there.
Fixes: 54f1944ed6 ("mptcp: factor out mptcp_connect()")
Reported-by: Ondrej Mosnacek <omosnace@redhat.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/399
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Xin Long says:
====================
rtnetlink: a couple of fixes in linkmsg validation
validate_linkmsg() was introduced to do linkmsg validation for existing
links. However, the new created links also need this linkmsg validation.
Add validate_linkmsg() check for link creating in Patch 1, and add more
tb checks into validate_linkmsg() in Patch 2 and 3.
====================
Link: https://lore.kernel.org/r/cover.1685548598.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This fixes the issue that dev gro_max_size and gso_ipv4_max_size
can be set to a huge value:
# ip link add dummy1 type dummy
# ip link set dummy1 gro_max_size 4294967295
# ip -d link show dummy1
dummy addrgenmode eui64 ... gro_max_size 4294967295
Fixes: 0fe79f28bf ("net: allow gro_max_size to exceed 65536")
Fixes: 9eefedd58a ("net: add gso_ipv4_max_size and gro_ipv4_max_size per device")
Reported-by: Xiumei Mu <xmu@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
These IFLA_GSO_* tb check should also be done for the new created link,
otherwise, they can be set to a huge value when creating links:
# ip link add dummy1 gso_max_size 4294967295 type dummy
# ip -d link show dummy1
dummy addrgenmode eui64 ... gso_max_size 4294967295
Fixes: 46e6b992c2 ("rtnetlink: allow GSO maximums to be set on device creation")
Fixes: 9eefedd58a ("net: add gso_ipv4_max_size and gro_ipv4_max_size per device")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
validate_linkmsg() was introduced by commit 1840bb13c2 ("[RTNL]:
Validate hardware and broadcast address attribute for RTM_NEWLINK")
to validate tb[IFLA_ADDRESS/BROADCAST] for existing links. The same
check should also be done for newly created links.
This patch adds validate_linkmsg() call in rtnl_create_link(), to
avoid the invalid address set when creating some devices like:
# ip link add dummy0 type dummy
# ip link add link dummy0 name mac0 address 01:02 type macsec
Fixes: 0e06877c6f ("[RTNETLINK]: rtnl_link: allow specifying initial device address")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The interrupt fix in commit 97a89ed101 should be applied on all variants
of GPY2xx PHY and GPY115C.
Fixes: 97a89ed101 ("net: phy: mxl-gpy: disable interrupts on GPY215 by default")
Signed-off-by: Xu Liang <lxu@maxlinear.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230531074822.39136-1-lxu@maxlinear.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fix return value in the error path of rswitch_start_xmit(). If TX
queues are full, this function should return NETDEV_TX_BUSY.
Fixes: 3590918b5d ("net: ethernet: renesas: Add support for "Ethernet Switch"")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20230529073817.1145208-1-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Remove properties already mentioned by common spi-controller.yaml and
switch to unevaluatedProperties:false to achieve same functional effect.
This makes the binding a bit smaller. Similarly there is no need to
allow additionalProperties for children, because spi-controller.yaml
already does it.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230601095908.563865-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
kernel_context() returns an error pointer. Use pointer-error
conversion functions to evaluate its return value, rather than
checking for a '0' return.
Fixes: eb5c10cbbc ("drm/i915: Remove I915_USER_PRIORITY_SHIFT")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <stable@vger.kernel.org> # v5.13+
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Acked-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526124138.2006110-1-andi.shyti@linux.intel.com
In current design:
1. PD and clt_path->s.dev are shared among connections.
2. every con[n]'s cleanup phase will call destroy_con_cq_qp()
3. clt_path->s.dev will be always decreased in destroy_con_cq_qp(), and
when clt_path->s.dev become zero, it will destroy PD.
4. when con[1] failed to create, con[1] will not take clt_path->s.dev,
but it try to decreased clt_path->s.dev
So, in case create_cm(con[0]) succeeds but create_cm(con[1]) fails,
destroy_con_cq_qp(con[1]) will be called first which will destroy the PD
while this PD is still taken by con[0].
Here, we refactor the error path of create_cm() and init_conns(), so that
we do the cleanup in the order they are created.
The warning occurs when destroying RXE PD whose reference count is not
zero.
rnbd_client L597: Mapping device /dev/nvme0n1 on session client, (access_mode: rw, nr_poll_queues: 0)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 26407 at drivers/infiniband/sw/rxe/rxe_pool.c:256 __rxe_cleanup+0x13a/0x170 [rdma_rxe]
Modules linked in: rpcrdma rdma_ucm ib_iser rnbd_client libiscsi rtrs_client scsi_transport_iscsi rtrs_core rdma_cm iw_cm ib_cm crc32_generic rdma_rxe udp_tunnel ib_uverbs ib_core kmem device_dax nd_pmem dax_pmem nd_vme crc32c_intel fuse nvme_core nfit libnvdimm dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua dm_mirror dm_region_hash dm_log dm_mod
CPU: 0 PID: 26407 Comm: rnbd-client.sh Kdump: loaded Not tainted 6.2.0-rc6-roce-flush+ #53
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:__rxe_cleanup+0x13a/0x170 [rdma_rxe]
Code: 45 84 e4 0f 84 5a ff ff ff 48 89 ef e8 5f 18 71 f9 84 c0 75 90 be c8 00 00 00 48 89 ef e8 be 89 1f fa 85 c0 0f 85 7b ff ff ff <0f> 0b 41 bc ea ff ff ff e9 71 ff ff ff e8 84 7f 1f fa e9 d0 fe ff
RSP: 0018:ffffb09880b6f5f0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff99401f15d6a8 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffffbac8234b RDI: 00000000ffffffff
RBP: ffff99401f15d6d0 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000002d82 R11: 0000000000000000 R12: 0000000000000001
R13: ffff994101eff208 R14: ffffb09880b6f6a0 R15: 00000000fffffe00
FS: 00007fe113904740(0000) GS:ffff99413bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff6cde656c8 CR3: 000000001f108004 CR4: 00000000001706f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
rxe_dealloc_pd+0x16/0x20 [rdma_rxe]
ib_dealloc_pd_user+0x4b/0x80 [ib_core]
rtrs_ib_dev_put+0x79/0xd0 [rtrs_core]
destroy_con_cq_qp+0x8a/0xa0 [rtrs_client]
init_path+0x1e7/0x9a0 [rtrs_client]
? __pfx_autoremove_wake_function+0x10/0x10
? lock_is_held_type+0xd7/0x130
? rcu_read_lock_sched_held+0x43/0x80
? pcpu_alloc+0x3dd/0x7d0
? rtrs_clt_init_stats+0x18/0x40 [rtrs_client]
rtrs_clt_open+0x24f/0x5a0 [rtrs_client]
? __pfx_rnbd_clt_link_ev+0x10/0x10 [rnbd_client]
rnbd_clt_map_device+0x6a5/0xe10 [rnbd_client]
Fixes: 6a98d71dae ("RDMA/rtrs: client: main functionality")
Link: https://lore.kernel.org/r/1682384563-2-4-git-send-email-lizhijian@fujitsu.com
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Tested-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The last iu->buf will leak if ib_dma_mapping_error() fails.
Fixes: c0894b3ea6 ("RDMA/rtrs: core: lib functions shared between client and server modules")
Link: https://lore.kernel.org/r/1682384563-2-3-git-send-email-lizhijian@fujitsu.com
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Acked-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
marvell_nfc_setup_interface() uses the frequency retrieved from the
clock associated with the nand interface to determine the timings that
will be used. By changing the NAND frequency select without reflecting
this in the clock configuration this means that the timings calculated
don't correctly meet the requirements of the NAND chip. This hasn't been
an issue up to now because of a different bug that was stopping the
timings being updated after they were initially set.
Fixes: b25251414f ("mtd: rawnand: marvell: Stop implementing ->select_chip()")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230525003154.2303012-2-chris.packham@alliedtelesis.co.nz
When new timing values are calculated in marvell_nfc_setup_interface()
ensure that they will be applied in marvell_nfc_select_target() by
clearing the selected_chip pointer.
Fixes: b25251414f ("mtd: rawnand: marvell: Stop implementing ->select_chip()")
Suggested-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230525003154.2303012-1-chris.packham@alliedtelesis.co.nz
The addition of the mtdchar_read_ioctl() function caused the stack usage
of mtdchar_ioctl() to grow beyond the warning limit on 32-bit architectures
with gcc-13:
drivers/mtd/mtdchar.c: In function 'mtdchar_ioctl':
drivers/mtd/mtdchar.c:1229:1: error: the frame size of 1488 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
Mark both the read and write portions as noinline_for_stack to ensure
they don't get inlined and use separate stack slots to reduce the
maximum usage, both in the mtdchar_ioctl() and combined with any
of its callees.
Fixes: 095bb6e44e ("mtdchar: add MEMREAD ioctl")
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230417205654.1982368-1-arnd@kernel.org
Naga no longer works for AMD/Xilinx and there is no activity from him to
continue to maintain Xilinx related drivers. Add myself instead to be kept
in loop if there is any need for testing.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
[<miquel.raynal@bootlin.com>: Manually apply on top of the latest -rc which
where the MAINTAINERS file got sorted]
Link: https://lore.kernel.org/linux-mtd/06df49c300c53a27423260e99acc217b06d4e588.1684827820.git.michal.simek@amd.com
rxe_cq_disable() has been removed but not its declaration.
Fixes: 78b26a3353 ("RDMA/rxe: Remove tasklet call from rxe_cq.c")
Link: https://lore.kernel.org/r/4f20ffc5-b2c4-0c11-2883-a835caf01a94@suse.com
Signed-off-by: Nicolas Morey <nmorey@suse.com>
Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Commit df8fc4e934 ("kbuild: Enable -fstrict-flex-arrays=3") triggers a
warning for fortified memset():
In function 'fortify_memset_chk',
inlined from 'irdma_clr_wqes' at drivers/infiniband/hw/irdma/uk.c:103:4:
include/linux/fortify-string.h:493:25: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]
493 | __write_overflow_field(p_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The problem here isthat the inner array only has four 8-byte elements, so
clearing 4096 bytes overflows that. As this structure is part of an outer
array, change the code to pass a pointer to the irdma_qp_quanta instead,
and change the size argument for readability, matching the comment above
it.
Fixes: 551c46edc7 ("RDMA/irdma: Add user/kernel shared libraries")
Link: https://lore.kernel.org/r/20230523111859.2197825-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
With RX coalescing, one CQE entry can be used to indicate multiple packets
on the receive queue. This saves processing time and PCI bandwidth over
the CQ.
The MANA Ethernet driver also uses the v2 version of the protocol. It
doesn't use RX coalescing and its behavior is not changed.
Link: https://lore.kernel.org/r/1684045095-31228-1-git-send-email-longli@linuxonhyperv.com
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The Starry-ili9882 is a 10.51" WUXGA TFT panel. which fits in nicely with
the existing panel-boe-tv101wum-nl6 driver. From the datasheet,MIPI need
to keep the LP11 state before the lcm_reset pin is pulled high. So add
lp11_before_reset flag.
Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230525093151.2338370-5-yangcong5@huaqin.corp-partner.google.com
The STARRY ili9882t is a 10.51" WUXGA TFT LCD panel,
which fits in nicely with the existing panel-boe-tv101wum-nl6
driver. Hence, we add a new compatible with panel specific config.
Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230525093151.2338370-4-yangcong5@huaqin.corp-partner.google.com
