Syzkaller was able to construct a packet of negative length by
redirecting from bpf_prog_test_run_skb with BPF_PROG_TYPE_LWT_XMIT:
BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:345 [inline]
BUG: KASAN: slab-out-of-bounds in skb_copy_from_linear_data include/linux/skbuff.h:3421 [inline]
BUG: KASAN: slab-out-of-bounds in __pskb_copy_fclone+0x2dd/0xeb0 net/core/skbuff.c:1395
Read of size 4294967282 at addr ffff8801d798009c by task syz-executor2/12942
kasan_report.cold.9+0x242/0x309 mm/kasan/report.c:412
check_memory_region_inline mm/kasan/kasan.c:260 [inline]
check_memory_region+0x13e/0x1b0 mm/kasan/kasan.c:267
memcpy+0x23/0x50 mm/kasan/kasan.c:302
memcpy include/linux/string.h:345 [inline]
skb_copy_from_linear_data include/linux/skbuff.h:3421 [inline]
__pskb_copy_fclone+0x2dd/0xeb0 net/core/skbuff.c:1395
__pskb_copy include/linux/skbuff.h:1053 [inline]
pskb_copy include/linux/skbuff.h:2904 [inline]
skb_realloc_headroom+0xe7/0x120 net/core/skbuff.c:1539
ipip6_tunnel_xmit net/ipv6/sit.c:965 [inline]
sit_tunnel_xmit+0xe1b/0x30d0 net/ipv6/sit.c:1029
__netdev_start_xmit include/linux/netdevice.h:4325 [inline]
netdev_start_xmit include/linux/netdevice.h:4334 [inline]
xmit_one net/core/dev.c:3219 [inline]
dev_hard_start_xmit+0x295/0xc90 net/core/dev.c:3235
__dev_queue_xmit+0x2f0d/0x3950 net/core/dev.c:3805
dev_queue_xmit+0x17/0x20 net/core/dev.c:3838
__bpf_tx_skb net/core/filter.c:2016 [inline]
__bpf_redirect_common net/core/filter.c:2054 [inline]
__bpf_redirect+0x5cf/0xb20 net/core/filter.c:2061
____bpf_clone_redirect net/core/filter.c:2094 [inline]
bpf_clone_redirect+0x2f6/0x490 net/core/filter.c:2066
bpf_prog_41f2bcae09cd4ac3+0xb25/0x1000
The generated test constructs a packet with mac header, network
header, skb->data pointing to network header and skb->len 0.
Redirecting to a sit0 through __bpf_redirect_no_mac pulls the
mac length, even though skb->data already is at skb->network_header.
bpf_prog_test_run_skb has already pulled it as LWT_XMIT !is_l2.
Update the offset calculation to pull only if skb->data differs
from skb->network_header, which is not true in this case.
The test itself can be run only from commit 1cf1cae963 ("bpf:
introduce BPF_PROG_TEST_RUN command"), but the same type of packets
with skb at network header could already be built from lwt xmit hooks,
so this fix is more relevant to that commit.
Also set the mac header on redirect from LWT_XMIT, as even after this
change to __bpf_redirect_no_mac that field is expected to be set, but
is not yet in ip_finish_output2.
Fixes: 3a0af8fd61 ("bpf: BPF for lightweight tunnel infrastructure")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Use napi_consume_skb() to get bulk free. Note that napi_consume_skb is
safe to call in a non-napi context as long as the napi_budget flag is
correct.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix IPI handling for Lantiq SoCs, which was broken by changes made
back in v4.12.
- Enable OF/DT serial support in ath79_defconfig to give us working
serial by default.
- Fix 64b builds for the Jazz platform.
- Set up a struct device for the BCM47xx SoC to allow BCM47xx drivers to
perform DMA again following the major DMA mapping changes made in
v4.19.
- Disable MSI on Cavium Octeon systems when the pcie_disable command
line parameter introduced in v3.3 is used, in order to avoid
inadvetently accessing PCIe controller registers despite the command
line.
- Fix a build failure for Cavium Octeon kernels with kexec enabled,
introduced in v4.20.
- Fix a regression in the behaviour of semctl/shmctl/msgctl IPC syscalls
for kernels including n32 support but not o32 support caused by some
cleanup in v3.19.
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Merge tag 'mips_fixes_5.0_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
- Fix IPI handling for Lantiq SoCs, which was broken by changes made
back in v4.12.
- Enable OF/DT serial support in ath79_defconfig to give us working
serial by default.
- Fix 64b builds for the Jazz platform.
- Set up a struct device for the BCM47xx SoC to allow BCM47xx drivers
to perform DMA again following the major DMA mapping changes made in
v4.19.
- Disable MSI on Cavium Octeon systems when the pcie_disable command
line parameter introduced in v3.3 is used, in order to avoid
inadvetently accessing PCIe controller registers despite the command
line.
- Fix a build failure for Cavium Octeon kernels with kexec enabled,
introduced in v4.20.
- Fix a regression in the behaviour of semctl/shmctl/msgctl IPC
syscalls for kernels including n32 support but not o32 support caused
by some cleanup in v3.19.
* tag 'mips_fixes_5.0_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: OCTEON: fix kexec support
mips: fix n32 compat_ipc_parse_version
Disable MSI also when pcie-octeon.pcie_disable on
MIPS: BCM47XX: Setup struct device for the SoC
MIPS: jazz: fix 64bit build
MIPS: ath79: Enable OF serial ports in the default config
MIPS: lantiq: Use CP0_LEGACY_COMPARE_IRQ
MIPS: lantiq: Fix IPI interrupt handling
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Merge tag 'devicetree-fixes-for-5.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fix from Rob Herring:
"A single build fix for powerpc due to device_node.type removal"
* tag 'devicetree-fixes-for-5.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
powerpc: chrp: Use of_node_is_type to access device_type
* Fix driver initialization crash due to the inability to report an
'error' state for a DIMM's security capability.
* Build warning fix for little-endian ARM64 builds
* Fix a potential race between the EDAC driver's usage of the NFIT
SMBIOS id for a DIMM and the driver shutdown path.
* A small collection of one-line benign cleanups for duplicate variable
assignments, a duplicate header include and a mis-typed function
argument.
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Merge tag 'libnvdimm-fixes-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A crash fix, a build warning fix, a miscellaneous small cleanups.
In case anyone is looking for them, there was a regression caught by
testing that caused two patches to be dropped from this update. Those
patches have been reworked and will soak for another week / re-target
5.0-rc4.
- Fix driver initialization crash due to the inability to report an
'error' state for a DIMM's security capability.
- Build warning fix for little-endian ARM64 builds
- Fix a potential race between the EDAC driver's usage of the NFIT
SMBIOS id for a DIMM and the driver shutdown path.
- A small collection of one-line benign cleanups for duplicate
variable assignments, a duplicate header include and a mis-typed
function argument"
* tag 'libnvdimm-fixes-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm/security: Fix nvdimm_security_state() state request selection
acpi/nfit: Remove duplicate set nd_set in acpi_nfit_init_interleave_set()
acpi/nfit: Fix race accessing memdev in nfit_get_smbios_id()
libnvdimm/dimm: Fix security capability detection for non-Intel NVDIMMs
nfit: Mark some functions as __maybe_unused
ACPI/nfit: delete the function to_acpi_nfit_desc
ACPI/nfit: delete the redundant header file
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Merge tag 'linux-watchdog-5.0-rc-fixes' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
- mt7621_wdt/rt2880_wdt: Fix compilation problem
- tqmx86: Fix a couple IS_ERR() vs NULL bugs
* tag 'linux-watchdog-5.0-rc-fixes' of git://www.linux-watchdog.org/linux-watchdog:
watchdog: tqmx86: Fix a couple IS_ERR() vs NULL bugs
watchdog: mt7621_wdt/rt2880_wdt: Fix compilation problem
Stable bugfixes:
- Fix TCP receive code on archs with flush_dcache_page()
Other bugfixes:
- Fix error code in rpcrdma_buffer_create()
- Fix a double free in rpcrdma_send_ctxs_create()
- Fix kernel BUG at kernel/cred.c:825
- Fix unnecessary retry in nfs42_proc_copy_file_range()
- Ensure rq_bytes_sent is reset before request transmission
- Ensure we respect the RPCSEC_GSS sequence number limit
- Address Kerberos performance/behavior regression
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Merge tag 'nfs-for-5.0-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
"These are mostly fixes for SUNRPC bugs, with a single v4.2
copy_file_range() fix mixed in.
Stable bugfixes:
- Fix TCP receive code on archs with flush_dcache_page()
Other bugfixes:
- Fix error code in rpcrdma_buffer_create()
- Fix a double free in rpcrdma_send_ctxs_create()
- Fix kernel BUG at kernel/cred.c:825
- Fix unnecessary retry in nfs42_proc_copy_file_range()
- Ensure rq_bytes_sent is reset before request transmission
- Ensure we respect the RPCSEC_GSS sequence number limit
- Address Kerberos performance/behavior regression"
* tag 'nfs-for-5.0-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
SUNRPC: Address Kerberos performance/behavior regression
SUNRPC: Ensure we respect the RPCSEC_GSS sequence number limit
SUNRPC: Ensure rq_bytes_sent is reset before request transmission
NFSv4.2 fix unnecessary retry in nfs4_copy_file_range
sunrpc: kernel BUG at kernel/cred.c:825!
SUNRPC: Fix TCP receive code on archs with flush_dcache_page()
xprtrdma: Double free in rpcrdma_sendctxs_create()
xprtrdma: Fix error code in rpcrdma_buffer_create()
A set of 17 fixes. Most of these are minor or trivial. The one fix
that may be serious is the isci one: the bug can cause hba parameters
to be set from uninitialized memory. I don't think it's exploitable,
but you never know.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"A set of 17 fixes. Most of these are minor or trivial.
The one fix that may be serious is the isci one: the bug can cause hba
parameters to be set from uninitialized memory. I don't think it's
exploitable, but you never know"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: cxgb4i: add wait_for_completion()
scsi: qla1280: set 64bit coherent mask
scsi: ufs: Fix geometry descriptor size
scsi: megaraid_sas: Retry reads of outbound_intr_status reg
scsi: qedi: Add ep_state for login completion on un-reachable targets
scsi: ufs: Fix system suspend status
scsi: qla2xxx: Use correct number of vectors for online CPUs
scsi: hisi_sas: Set protection parameters prior to adding SCSI host
scsi: tcmu: avoid cmd/qfull timers updated whenever a new cmd comes
scsi: isci: initialize shost fully before calling scsi_add_host()
scsi: lpfc: lpfc_sli: Mark expected switch fall-throughs
scsi: smartpqi_init: fix boolean expression in pqi_device_remove_start
scsi: core: Synchronize request queue PM status only on successful resume
scsi: pm80xx: reduce indentation
scsi: qla4xxx: check return code of qla4xxx_copy_from_fwddb_param
scsi: megaraid_sas: correct an info message
scsi: target/iscsi: fix error msg typo when create lio_qr_cache failed
scsi: sd: Fix cache_type_store()
Re-run the shell fragment that generated the original list. In particular
this adds the missing xarray related functions.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Since phy driver features became a link_mode bitmap, phy drivers that
don't have a list of features configured will cause the kernel to crash
when probed.
Prevent the phy driver from registering if the features field is missing.
Fixes: 719655a149 ("net: phy: Replace phy driver features u32 with link_mode bitmap")
Reported-by: Scott Wood <oss@buserror.net>
Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A recent commit in Clang expanded the -Wstring-plus-int warning, showing
some odd behavior in this file.
drivers/isdn/hardware/avm/b1.c:426:30: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
cinfo->version[j] = "\0\0" + 1;
~~~~~~~^~~
drivers/isdn/hardware/avm/b1.c:426:30: note: use array indexing to silence this warning
cinfo->version[j] = "\0\0" + 1;
^
& [ ]
1 warning generated.
This is equivalent to just "\0". Nick pointed out that it is smarter to
use "" instead of "\0" because "" is used elsewhere in the kernel and
can be deduplicated at the linking stage.
Link: https://github.com/ClangBuiltLinux/linux/issues/309
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sensor can periodically trigger self cleaning. Period can be changed by
writing a new value to a dedicated attribute. Upon attribute read
current period gets returned.
Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit allow the driver to work with device-tree.
Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@gmail.com>
Acked-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Initial support for ST LPS22HH pressure sensor. Datasheet:
http://www2.st.com/resource/en/datasheet/lps22hh.pdf
Features:
* pressure, temperature data and timestamping channels
* sampling frequency selection [1..200] Hz
* interrupt based trigger
* over I2C or SPI interface
Signed-off-by: mario tesi <mario.tesi@st.com>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Commit 8ce5f84157 ("of: Remove struct device_node.type pointer")
removed struct device_node.type pointer, but the conversion to use
of_node_is_type() accessor was missed in chrp_init_IRQ().
Fixes: 8ce5f84157 ("of: Remove struct device_node.type pointer")
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Rob Herring <robh@kernel.org>
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: c7cdba31ed ("mac80211-next: rtnetlink wifi simulation device")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In ieee80211_rx_h_mesh_fwding, we increment the 'dropped_frames_ttl'
counter when we decrement the ttl to zero. For unicast frames
destined for other hosts, we stop processing the frame at that point.
For multicast frames, we do not rebroadcast it in this case, but we
do pass the frame up the stack to process it on this STA. That
doesn't match the usual definition of "dropped," so don't count
those as such.
With this change, something like `ping6 -i0.2 ff02::1%mesh0` from a
peer in a ttl=1 network no longer increments the counter rapidly.
Signed-off-by: Bob Copeland <bobcopeland@fb.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Under certain circumstances, radios created via netlink could
have n_limits be zero and no possible interface types, which
makes no sense. Reject this early to prevent a WARN_ON() in
cfg80211.
Fixes: 99e3a44bac ("mac80211_hwsim: allow setting iftype support")
Reported-by: syzbot+73fd8b0aa60c67fa4b60@syzkaller.appspotmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Merge tag 'mlx5-fixes-2019-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
Mellanox, mlx5 fixes 2019-01-18
This series introduces some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
For -stable v4.18
('net/mlx5e: Force CHECKSUM_UNNECESSARY for short ethernet frames')
The patch doesn't apply cleanly to 4.18.y, but it is very simple to
resolve, what should be the procedure here ?
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously the identifier used for indirect block callback registry
and for block rule cb registry (when done via indirect blocks) was the
pointer to the tunnel netdev we were interested in receiving updates on.
This worked fine if a single PF existed that registered one callback for
the tunnel netdev of interest. However, if multiple PFs are in place then
the 2nd PF tries to register with the same tunnel netdev identifier. This
leads to EEXIST errors and/or incorrect cb deletions.
Prevent this conflict by using the rpriv pointer as the identifier for
netdev indirect block cb registry, allowing each PF to register a unique
callback per tunnel netdev. For block cb registry, the same PF may
register multiple cbs to the same block if using TC shared blocks.
Instead of the rpriv, use the pointer to the allocated indr_priv data as
the identifier here. This means that there can be a unique block callback
for each PF/tunnel netdev combo.
Fixes: f5bc2c5de1 ("net/mlx5e: Support TC indirect block notifications
for eswitch uplink reprs")
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
For representors, the TX dropped counter is not folded from the
per-ring counters. Fix it.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
When an ethernet frame is padded to meet the minimum ethernet frame
size, the padding octets are not covered by the hardware checksum.
Fortunately the padding octets are usually zero's, which don't affect
checksum. However, we have a switch which pads non-zero octets, this
causes kernel hardware checksum fault repeatedly.
Prior to:
commit '88078d98d1bb ("net: pskb_trim_rcsum() and CHECKSUM_COMPLETE ...")'
skb checksum was forced to be CHECKSUM_NONE when padding is detected.
After it, we need to keep skb->csum updated, like what we do for RXFCS.
However, fixing up CHECKSUM_COMPLETE requires to verify and parse IP
headers, it is not worthy the effort as the packets are so small that
CHECKSUM_COMPLETE can't save anything.
Fixes: 88078d98d1 ("net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"),
Cc: Eric Dumazet <edumazet@google.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Cc: Nikola Ciprich <nikola.ciprich@linuxbox.cz>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Precise and non-ambiguous license information is important. The recent
relicensing of the bpftools introduced a license conflict.
The files have now:
SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause
and
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version
Amazingly about 20 people acked that change and neither they nor the
committer noticed. Oh well.
Digging deeper: The files were imported from the iproute2 repository with
the GPL V2 or later boiler plate text in commit b66e907cfe ("tools:
bpftool: copy JSON writer from iproute2 repository")
Looking at the iproute2 repository at
git://git.kernel.org/pub/scm/network/iproute2/iproute2.git
the following commit is the equivivalent:
commit d9d8c839 ("json_writer: add SPDX Identifier (GPL-2/BSD-2)")
That commit explicitly removes the boiler plate and relicenses the code
uner GPL-2.0-only and BSD-2-Clause. As Steven wrote the original code and
also the relicensing commit, it's assumed that the relicensing was intended
to do exaclty that. Just the kernel side update failed to remove the boiler
plate. Do so now.
Fixes: 907b223651 ("tools: bpftool: dual license all files")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: YueHaibing <yuehaibing@huawei.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: Stanislav Fomichev <sdf@google.com>
Cc: Sean Young <sean@mess.org>
Cc: Jiri Benc <jbenc@redhat.com>
Cc: David Calavera <david.calavera@gmail.com>
Cc: Andrey Ignatov <rdna@fb.com>
Cc: Joe Stringer <joe@wand.net.nz>
Cc: David Ahern <dsahern@gmail.com>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Petar Penkov <ppenkov@stanford.edu>
Cc: Sandipan Das <sandipan@linux.ibm.com>
Cc: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Taeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Quentin Monnet <quentin.monnet@netronome.com>
CC: okash.khawaja@gmail.com
Cc: netdev@vger.kernel.org
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Dan reported that bpftool does not compile for him:
$ make tools/bpf
DESCEND bpf
Auto-detecting system features:
.. libbfd: [ on ]
.. disassembler-four-args: [ OFF ]
DESCEND bpftool
Auto-detecting system features:
.. libbfd: [ on ]
.. disassembler-four-args: [ OFF ]
CC /opt/linux.git/tools/bpf/bpftool/net.o
In file included from /opt/linux.git/tools/include/uapi/linux/pkt_cls.h:6:0,
from /opt/linux.git/tools/include/uapi/linux/tc_act/tc_bpf.h:14,
from net.c:13:
net.c: In function 'show_dev_tc_bpf':
net.c:164:21: error: 'TC_H_CLSACT' undeclared (first use in this function)
handle = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_INGRESS);
[...]
Fix it by importing pkt_sched.h header copy into tooling
infrastructure.
Fixes: 49a249c387 ("tools/bpftool: copy a few net uapi headers to tools directory")
Fixes: f6f3bac08f ("tools/bpf: bpftool: add net support")
Reported-by: Dan Gilson <dan_gilson@yahoo.com>
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=202315
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Ido Schimmel says:
====================
mlxsw: Various fixes
This patchset contains small fixes in mlxsw and one fix in the bridge
driver.
Patches #1-#4 perform small adjustments in PCI and FID code following
recent tests that were performed on the Spectrum-2 ASIC.
Patch #5 fixes the bridge driver to mark FDB entries that were added by
user as such. Otherwise, these entries will be ignored by underlying
switch drivers.
Patch #6 fixes a long standing issue in mlxsw where the driver
incorrectly programmed static FDB entries as both static and sticky.
Patches #7-#8 add test cases for above mentioned bugs.
Please consider patches #1, #2 and #4 for stable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Test that externally learned FDB entries can roam, but not age out.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Test that externally learned FDB entries added from user space are
marked as offloaded.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver currently treats static FDB entries as both static and
sticky. This is incorrect and prevents such entries from being roamed to
a different port via learning.
Fix this by configuring static entries with ageing disabled and roaming
enabled.
In net-next we can add proper support for the newly introduced 'sticky'
flag.
Fixes: 56ade8fe3f ("mlxsw: spectrum: Add initial support for Spectrum ASIC")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Alexander Petrovskiy <alexpe@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Externally learned entries can be added by a user or by a switch driver
that is notifying the bridge driver about entries that were learned in
hardware.
In the first case, the entries are not marked with the 'added_by_user'
flag, which causes switch drivers to ignore them and not offload them.
The 'added_by_user' flag can be set on externally learned FDB entries
based on the 'swdev_notify' parameter in br_fdb_external_learn_add(),
which effectively means if the created / updated FDB entry was added by
a user or not.
Fixes: 816a3bed95 ("switchdev: Add fdb.added_by_user to switchdev notifications")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Alexander Petrovskiy <alexpe@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Cc: Roopa Prabhu <roopa@cumulusnetworks.com>
Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Cc: bridge@lists.linux-foundation.org
Signed-off-by: David S. Miller <davem@davemloft.net>
When using a tc flower action of egress mirred redirect, the driver adds
an implicit FID setting action. This implicit action sets a dummy FID to
the packet and is used as part of a design for trapping unmatched flows
in OVS. While this implicit FID setting action is supposed to be a NOP
when a redirect action is added, in Spectrum-2 the FID record is
consulted as the dummy FID index is an 802.1D FID index and the packet
is dropped instead of being redirected.
Set the dummy FID index value to be within 802.1Q range. This satisfies
both Spectrum-1 which ignores the FID and Spectrum-2 which identifies it
as an 802.1Q FID and will then follow the redirect action.
Fixes: c3ab435466 ("mlxsw: spectrum: Extend to support Spectrum-2 ASIC")
Signed-off-by: Nir Dotan <nird@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Return an appropriate error in the case when the driver timeouts on waiting
for firmware to go out of PCI reset.
Fixes: 233fa44bd6 ("mlxsw: pci: Implement reset done check")
Signed-off-by: Nir Dotan <nird@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Spectrum-2 PHY layer introduces a calibration period which is a part of the
Spectrum-2 firmware boot process. Hence increase the SW timeout waiting for
the firmware to come out of boot. This does not increase system boot time
in cases where the firmware PHY calibration process is done quickly.
Fixes: c3ab435466 ("mlxsw: spectrum: Extend to support Spectrum-2 ASIC")
Signed-off-by: Nir Dotan <nird@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a packet should be trapped to the CPU the device consumes a WQE
(work queue element) from an RDQ (receive descriptor queue) and copies
the packet to the address specified in the WQE. The device then tries to
post a CQE (completion queue element) that contains various metadata
(e.g., ingress port) about the packet to a CQ (completion queue).
In case the device managed to consume a WQE, but did not manage to post
the corresponding CQE, it will get stuck. This unlikely situation can be
triggered due to the scheme the driver is currently using to process
CQEs.
The driver will consume up to 512 CQEs at a time and after processing
each corresponding WQE it will ring the RDQ's doorbell, letting the
device know that a new WQE was posted for it to consume. Only after
processing all the CQEs (up to 512), the driver will ring the CQ's
doorbell, letting the device know that new ones can be posted.
Fix this by having the driver ring the CQ's doorbell for every processed
CQE, but before ringing the RDQ's doorbell. This guarantees that
whenever we post a new WQE, there is a corresponding CQE available. Copy
the currently processed CQE to prevent the device from overwriting it
with a new CQE after ringing the doorbell.
Note that the driver still arms the CQ only after processing all the
pending CQEs, so that interrupts for this CQ will only be delivered
after the driver finished its processing.
Before commit 8404f6f2e8 ("mlxsw: pci: Allow to use CQEs of version 1
and version 2") the issue was virtually impossible to trigger since the
number of CQEs was twice the number of WQEs and the number of CQEs
processed at a time was equal to the number of available WQEs.
Fixes: 8404f6f2e8 ("mlxsw: pci: Allow to use CQEs of version 1 and version 2")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Semion Lisyansky <semionl@mellanox.com>
Tested-by: Semion Lisyansky <semionl@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Add missing DT translation call in stm32-exti
- Fix uninitialized mutex in the GICv3 MBI support code
- Drop useless GPIO includes from the madera driver
- Fix PCI Multi-MSI allocation with aliasing devices on GICv3 ITS
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Merge tag 'irqchip-5.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip updates from Marc Zyngier
- Add missing DT translation call in stm32-exti
- Fix uninitialized mutex in the GICv3 MBI support code
- Drop useless GPIO includes from the madera driver
- Fix PCI Multi-MSI allocation with aliasing devices on GICv3 ITS
Update email addresses of liquidio driver maintainers. Also remove a
former maintainer.
Signed-off-by: Felix Manlunas <fmanlunas@marvell.com>
Acked-by: Derek Chickles <dchickles@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
"also enables" should not be spelled as one word.
Fixes: cfc80d9a11 ("net: Introduce net_failover driver")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
In certain cases, pskb_trim_rcsum() may change skb pointers.
Reinitialize header pointers afterwards to avoid potential
use-after-frees. Add a note in the documentation of
pskb_trim_rcsum(). Found by KASAN.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'media/v5.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- a regression fix at v4l2 core, with affects multi-plane streams
- a fix at vim2m driver
* tag 'media/v5.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: vim2m: only cancel work if it is for right context
media: v4l: ioctl: Validate num_planes for debug messages
media: v4l: ioctl: Validate num_planes before using it
media: v4l2-ioctl: Clear only per-plane reserved fields
- Fix reattach implementation in the Designware driver
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Merge tag 'i3c/fixes-for-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3c fixes from Boris Brezillon:
- Fix the error check on master->sysclk val in the Cadence driver
- Fix reattach implementation in the Designware driver
* tag 'i3c/fixes-for-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
i3c: master: dw-i3c-master: fix i3c_attach/reattach
i3c: master: Fix an error checking typo in 'cdns_i3c_master_probe()'
- jz4740: fix a compilation warning
- fsmc: fix a regression introduced by ->select_chip() deprecation
- denali: fix a regression introduced by NAND_KEEP_TIMINGS addition
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Merge tag 'mtd/fixes-for-5.0-rc3' of git://git.infradead.org/linux-mtd
Pull mtd fixes from Boris Brezillon:
"Raw NAND changes:
- jz4740: fix a compilation warning
- fsmc: fix a regression introduced by ->select_chip() deprecation
- denali: fix a regression introduced by NAND_KEEP_TIMINGS addition"
* tag 'mtd/fixes-for-5.0-rc3' of git://git.infradead.org/linux-mtd:
mtd: rawnand: denali: get ->setup_data_interface() working again
mtd: nand: jz4740: fix '__iomem *' vs. '* __iomem'
mtd: rawnand: fsmc: Keep bank enable bit set
The cleanups for the way we handle type information introduced during
the merge window revealed that we'd been abusing the irq APIs for a long
time, causing breakage for systems. This pull request has a couple of
minimal fixes for that which restore the previous behaviour for the time
being, we'll fix it properly for v5.1 but that'd be a bit much to do as
a bug fix.
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Merge tag 'regmap-fix-v5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"The cleanups for the way we handle type information introduced during
the merge window revealed that we'd been abusing the irq APIs for a
long time, causing breakage for systems.
This has a couple of minimal fixes for that which restore the previous
behaviour for the time being, we'll fix it properly for v5.1 but
that'd be a bit much to do as a bug fix"
* tag 'regmap-fix-v5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap-irq: do not write mask register if mask_base is zero
regmap: regmap-irq: silently ignore unsupported type settings
Fix "reference to nonexisting document" warnings.
Fixes: b255e500c8 ("net: documentation: build a directory structure for drivers")
Signed-off-by: Otto Sabart <ottosabart@seberm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
