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Pull ceph fixes from Ilya Dryomov:
"An important follow-up for replica reads support that went into -rc1
and two target_copy() fixups"
* tag 'ceph-for-5.8-rc2' of git://github.com/ceph/ceph-client:
libceph: don't omit used_replica in target_copy()
libceph: don't omit recovery_deletes in target_copy()
libceph: move away from global osd_req_flags
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Merge non-faulting memory access cleanups from Christoph Hellwig:
"Andrew and I decided to drop the patches implementing your suggested
rename of the probe_kernel_* and probe_user_* helpers from -mm as
there were way to many conflicts.
After -rc1 might be a good time for this as all the conflicts are
resolved now"
This also adds a type safety checking patch on top of the renaming
series to make the subtle behavioral difference between 'get_user()' and
'get_kernel_nofault()' less potentially dangerous and surprising.
* emailed patches from Christoph Hellwig <hch@lst.de>:
maccess: make get_kernel_nofault() check for minimal type compatibility
maccess: rename probe_kernel_address to get_kernel_nofault
maccess: rename probe_user_{read,write} to copy_{from,to}_user_nofault
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
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Better describe what these functions do.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull networking fixes from David Miller:
1) Don't get per-cpu pointer with preemption enabled in nft_set_pipapo,
fix from Stefano Brivio.
2) Fix memory leak in ctnetlink, from Pablo Neira Ayuso.
3) Multiple definitions of MPTCP_PM_MAX_ADDR, from Geliang Tang.
4) Accidently disabling NAPI in non-error paths of macb_open(), from
Charles Keepax.
5) Fix races between alx_stop and alx_remove, from Zekun Shen.
6) We forget to re-enable SRIOV during resume in bnxt_en driver, from
Michael Chan.
7) Fix memory leak in ipv6_mc_destroy_dev(), from Wang Hai.
8) rxtx stats use wrong index in mvpp2 driver, from Sven Auhagen.
9) Fix memory leak in mptcp_subflow_create_socket error path, from Wei
Yongjun.
10) We should not adjust the TCP window advertised when sending dup acks
in non-SACK mode, because it won't be counted as a dup by the sender
if the window size changes. From Eric Dumazet.
11) Destroy the right number of queues during remove in mvpp2 driver,
from Sven Auhagen.
12) Various WOL and PM fixes to e1000 driver, from Chen Yu, Vaibhav
Gupta, and Arnd Bergmann.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (35 commits)
e1000e: fix unused-function warning
e1000: use generic power management
e1000e: Do not wake up the system via WOL if device wakeup is disabled
lan743x: add MODULE_DEVICE_TABLE for module loading alias
mlxsw: spectrum: Adjust headroom buffers for 8x ports
bareudp: Fixed configuration to avoid having garbage values
mvpp2: remove module bugfix
tcp: grow window for OOO packets only for SACK flows
mptcp: fix memory leak in mptcp_subflow_create_socket()
netfilter: flowtable: Make nf_flow_table_offload_add/del_cb inline
net/sched: act_ct: Make tcf_ct_flow_table_restore_skb inline
net: dsa: sja1105: fix PTP timestamping with large tc-taprio cycles
mvpp2: ethtool rxtx stats fix
MAINTAINERS: switch to my private email for Renesas Ethernet drivers
rocker: fix incorrect error handling in dma_rings_init
test_objagg: Fix potential memory leak in error handling
net: ethernet: mtk-star-emac: simplify interrupt handling
mld: fix memory leak in ipv6_mc_destroy_dev()
bnxt_en: Return from timer if interface is not in open state.
bnxt_en: Fix AER reset logic on 57500 chips.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull flexible-array member conversions from Gustavo A. R. Silva:
"Replace zero-length arrays with flexible-array members.
Notice that all of these patches have been baking in linux-next for
two development cycles now.
There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should no
longer be used[2].
C99 introduced “flexible array members”, which lacks a numeric size
for the array declaration entirely:
struct something {
size_t count;
struct foo items[];
};
This is the way the kernel expects dynamically sized trailing elements
to be declared. It allows the compiler to generate errors when the
flexible array does not occur last in the structure, which helps to
prevent some kind of undefined behavior[3] bugs from being
inadvertently introduced to the codebase.
It also allows the compiler to correctly analyze array sizes (via
sizeof(), CONFIG_FORTIFY_SOURCE, and CONFIG_UBSAN_BOUNDS). For
instance, there is no mechanism that warns us that the following
application of the sizeof() operator to a zero-length array always
results in zero:
struct something {
size_t count;
struct foo items[0];
};
struct something *instance;
instance = kmalloc(struct_size(instance, items, count), GFP_KERNEL);
instance->count = count;
size = sizeof(instance->items) * instance->count;
memcpy(instance->items, source, size);
At the last line of code above, size turns out to be zero, when one
might have thought it represents the total size in bytes of the
dynamic memory recently allocated for the trailing array items. Here
are a couple examples of this issue[4][5].
Instead, flexible array members have incomplete type, and so the
sizeof() operator may not be applied[6], so any misuse of such
operators will be immediately noticed at build time.
The cleanest and least error-prone way to implement this is through
the use of a flexible array member:
struct something {
size_t count;
struct foo items[];
};
struct something *instance;
instance = kmalloc(struct_size(instance, items, count), GFP_KERNEL);
instance->count = count;
size = sizeof(instance->items[0]) * instance->count;
memcpy(instance->items, source, size);
instead"
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")
[4] commit f2cd32a443da ("rndis_wlan: Remove logically dead code")
[5] commit ab91c2a89f86 ("tpm: eventlog: Replace zero-length array with flexible-array member")
[6] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
* tag 'flex-array-conversions-5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (41 commits)
w1: Replace zero-length array with flexible-array
tracing/probe: Replace zero-length array with flexible-array
soc: ti: Replace zero-length array with flexible-array
tifm: Replace zero-length array with flexible-array
dmaengine: tegra-apb: Replace zero-length array with flexible-array
stm class: Replace zero-length array with flexible-array
Squashfs: Replace zero-length array with flexible-array
ASoC: SOF: Replace zero-length array with flexible-array
ima: Replace zero-length array with flexible-array
sctp: Replace zero-length array with flexible-array
phy: samsung: Replace zero-length array with flexible-array
RxRPC: Replace zero-length array with flexible-array
rapidio: Replace zero-length array with flexible-array
media: pwc: Replace zero-length array with flexible-array
firmware: pcdp: Replace zero-length array with flexible-array
oprofile: Replace zero-length array with flexible-array
block: Replace zero-length array with flexible-array
tools/testing/nvdimm: Replace zero-length array with flexible-array
libata: Replace zero-length array with flexible-array
kprobes: Replace zero-length array with flexible-array
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2020-06-16
This series contains fixes to e1000 and e1000e.
Chen fixes an e1000e issue where systems could be waken via WoL, even
though the user has disabled the wakeup bit via sysfs.
Vaibhav Gupta updates the e1000 driver to clean up the legacy Power
Management hooks.
Arnd Bergmann cleans up the inconsistent use CONFIG_PM_SLEEP
preprocessor tags, which also resolves the compiler warnings about the
possibility of unused structure.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The CONFIG_PM_SLEEP #ifdef checks in this file are inconsistent,
leading to a warning about sometimes unused function:
drivers/net/ethernet/intel/e1000e/netdev.c:137:13: error: unused function 'e1000e_check_me' [-Werror,-Wunused-function]
Rather than adding more #ifdefs, just remove them completely
and mark the PM functions as __maybe_unused to let the compiler
work it out on it own.
Fixes: e086ba2fccda ("e1000e: disable s0ix entry and exit flows for ME systems")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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With legacy PM hooks, it was the responsibility of a driver to manage PCI
states and also the device's power state. The generic approach is to let PCI
core handle the work.
e1000_suspend() calls __e1000_shutdown() to perform intermediate tasks.
__e1000_shutdown() modifies the value of "wake" (device should be wakeup
enabled or not), responsible for controlling the flow of legacy PM.
Since, PCI core has no idea about the value of "wake", new code for generic
PM may produce unexpected results. Thus, use "device_set_wakeup_enable()"
to wakeup-enable the device accordingly.
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Currently the system will be woken up via WOL(Wake On LAN) even if the
device wakeup ability has been disabled via sysfs:
cat /sys/devices/pci0000:00/0000:00:1f.6/power/wakeup
disabled
The system should not be woken up if the user has explicitly
disabled the wake up ability for this device.
This patch clears the WOL ability of this network device if the
user has disabled the wake up ability in sysfs.
Fixes: bc7f75fa9788 ("[E1000E]: New pci-express e1000 driver")
Reported-by: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Without a MODULE_DEVICE_TABLE the attributes are missing that create
an alias for auto-loading the module in userspace via hotplug.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The port's headroom buffers are used to store packets while they
traverse the device's pipeline and also to store packets that are egress
mirrored.
On Spectrum-3, ports with eight lanes use two headroom buffers between
which the configured headroom size is split.
In order to prevent packet loss, multiply the calculated headroom size
by two for 8x ports.
Fixes: da382875c616 ("mlxsw: spectrum: Extend to support Spectrum-3 ASIC")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Code to initialize the conf structure while gathering the configuration
of the device was missing.
Fixes: 571912c69f0e ("net: UDP tunnel encapsulation module for tunnelling different protocols like MPLS, IP, NSH etc.")
Signed-off-by: Martin <martin.varghese@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The remove function does not destroy all
BM Pools when per cpu pool is active.
When reloading the mvpp2 as a module the BM Pools
are still active in hardware and due to the bug
have twice the size now old + new.
This eventually leads to a kernel crash.
v2:
* add Fixes tag
Fixes: 7d04b0b13b11 ("mvpp2: percpu buffers")
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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osd_req_flags is overly general and doesn't suit its only user
(read_from_replica option) well:
- applying osd_req_flags in account_request() affects all OSD
requests, including linger (i.e. watch and notify). However,
linger requests should always go to the primary even though
some of them are reads (e.g. notify has side effects but it
is a read because it doesn't result in mutation on the OSDs).
- calls to class methods that are reads are allowed to go to
the replica, but most such calls issued for "rbd map" and/or
exclusive lock transitions are requested to be resent to the
primary via EAGAIN, doubling the latency.
Get rid of global osd_req_flags and set read_from_replica flag
only on specific OSD requests instead.
Fixes: 8ad44d5e0d1e ("libceph: read_from_replica option")
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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The driver name was accidentally removed when .probe() by was replaced
by .probe_new() during an early patch review.
[ 121.243012] EAX: c2a8bc64 EBX: 00000000 ECX: 00000000 EDX: 00000000
[ 121.243012] ESI: c2a8bc79 EDI: 00000000 EBP: e54bdea8 ESP: e54bdea0
[ 121.243012] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010286
[ 121.243012] CR0: 80050033 CR2: 00000000 CR3: 02ec3000 CR4: 000006b0
[ 121.243012] Call Trace:
[ 121.243012] kset_find_obj+0x3d/0xc0
[ 121.243012] driver_find+0x16/0x40
[ 121.243012] driver_register+0x49/0x100
[ 121.243012] ? i2c_for_each_dev+0x39/0x50
[ 121.243012] ? __process_new_adapter+0x20/0x20
[ 121.243012] ? cht_wc_driver_init+0x11/0x11
[ 121.243012] i2c_register_driver+0x30/0x80
[ 121.243012] ? intel_lpss_pci_driver_init+0x16/0x16
[ 121.243012] mt6360_pmu_driver_init+0xf/0x11
[ 121.243012] do_one_initcall+0x33/0x1a0
[ 121.243012] ? parse_args+0x1eb/0x3d0
[ 121.243012] ? __might_sleep+0x31/0x90
[ 121.243012] ? kernel_init_freeable+0x10a/0x17f
[ 121.243012] kernel_init_freeable+0x12c/0x17f
[ 121.243012] ? rest_init+0x110/0x110
[ 121.243012] kernel_init+0xb/0x100
[ 121.243012] ? schedule_tail_wrapper+0x9/0xc
[ 121.243012] ret_from_fork+0x19/0x24
[ 121.243012] Modules linked in:
[ 121.243012] CR2: 0000000000000000
[ 121.243012] random: get_random_bytes called from init_oops_id+0x3a/0x40 with crng_init=0
[ 121.243012] ---[ end trace 38a803400f1a2bee ]---
[ 121.243012] EIP: strcmp+0x11/0x30
Fixes: 7edd363421dab ("mfd: Add support for PMIC MT6360")
Signed-off-by: Gene Chen <gene_chen@richtek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@kernel.org>
[Lee: Taking the opportunity to fix the compatible string too 's/_/-/']
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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|
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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member
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
|
|
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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It isn't actually described clearly at all in UM10944.pdf, but on TX of
a management frame (such as PTP), this needs to happen:
- The destination MAC address (i.e. 01-80-c2-00-00-0e), along with the
desired destination port, need to be installed in one of the 4
management slots of the switch, over SPI.
- The host can poll over SPI for that management slot's ENFPORT field.
That gets unset when the switch has matched the slot to the frame.
And therein lies the problem. ENFPORT does not mean that the packet has
been transmitted. Just that it has been received over the CPU port, and
that the mgmt slot is yet again available.
This is relevant because of what we are doing in sja1105_ptp_txtstamp_skb,
which is called right after sja1105_mgmt_xmit. We are in a hard
real-time deadline, since the hardware only gives us 24 bits of TX
timestamp, so we need to read the full PTP clock to reconstruct it.
Because we're in a hurry (in an attempt to make sure that we have a full
64-bit PTP time which is as close as possible to the actual transmission
time of the frame, to avoid 24-bit wraparounds), first we read the PTP
clock, then we poll for the TX timestamp to become available.
But of course, we don't know for sure that the frame has been
transmitted when we read the full PTP clock. We had assumed that ENFPORT
means it has, but the assumption is incorrect. And while in most
real-life scenarios this has never been caught due to software delays,
nowhere is this fact more obvious than with a tc-taprio offload, where
PTP traffic gets a small timeslot very rarely (example: 1 packet per 10
ms). In that case, we will be reading the PTP clock for timestamp
reconstruction too early (before the packet has been transmitted), and
this renders the reconstruction procedure incorrect (see the assumptions
described in the comments found on function sja1105_tstamp_reconstruct).
So the PTP TX timestamps will be off by 1<<24 clock ticks, or 135 ms
(1 tick is 8 ns).
So fix this case of premature optimization by simply reordering the
sja1105_ptpegr_ts_poll and the sja1105_ptpclkval_read function calls. It
turns out that in practice, the 135 ms hard deadline for PTP timestamp
wraparound is not so hard, since even the most bandwidth-intensive PTP
profiles, such as 802.1AS-2011, have a sync frame interval of 125 ms.
So if we couldn't deliver a timestamp in 135 ms (which we can), we're
toast and have much bigger problems anyway.
Fixes: 47ed985e97f5 ("net: dsa: sja1105: Add logic for TX timestamping")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The ethtool rx and tx queue statistics are reporting wrong values.
Fix reading out the correct ones.
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In rocker_dma_rings_init, the goto blocks in case of errors
caused by the functions rocker_dma_cmd_ring_waits_alloc() and
rocker_dma_ring_create() are incorrect. The patch fixes the
order consistent with cleanup in rocker_dma_rings_fini().
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
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During development we tried to make the interrupt handling as fine-grained
as possible with TX and RX interrupts being disabled/enabled independently
and the counter registers reset from workqueue context.
Unfortunately after thorough testing of current mainline, we noticed the
driver has become unstable under heavy load. While this is hard to
reproduce, it's quite consistent in the driver's current form.
This patch proposes to go back to the previous approach of doing all
processing in napi context with all interrupts masked in order to make the
driver usable in mainline linux. This doesn't impact the performance on
pumpkin boards at all and it's in line with what many ethernet drivers do
in mainline linux anyway.
At the same time we're adding a FIXME comment about the need to improve
the interrupt handling.
Fixes: 8c7bd5a454ff ("net: ethernet: mtk-star-emac: new driver")
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This will avoid many uneccessary error logs when driver or firmware is
in reset.
Fixes: 230d1f0de754 ("bnxt_en: Handle firmware reset.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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AER reset should follow the same steps as suspend/resume. We need to
free context memory during AER reset and allocate new context memory
during recovery by calling bnxt_hwrm_func_qcaps(). We also need
to call bnxt_reenable_sriov() to restore the VFs.
Fixes: bae361c54fb6 ("bnxt_en: Improve AER slot reset.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If VFs are enabled, we need to re-configure them during resume because
firmware has been reset while resuming. Otherwise, the VFs won't
work after resume.
Fixes: c16d4ee0e397 ("bnxt_en: Refactor logic to re-enable SRIOV after firmware reset detected.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The separate steps we do in bnxt_resume() can be done more simply by
calling bnxt_hwrm_func_qcaps(). This change will add an extra
__bnxt_hwrm_func_qcaps() call which is needed anyway on older
firmware.
Fixes: f9b69d7f6279 ("bnxt_en: Fix suspend/resume path on 57500 chips")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a race condition exist during termination. The path is
alx_stop and then alx_remove. An alx_schedule_link_check could be called
before alx_stop by interrupt handler and invoke alx_link_check later.
Alx_stop frees the napis, and alx_remove cancels any pending works.
If any of the work is scheduled before termination and invoked before
alx_remove, a null-ptr-deref occurs because both expect alx->napis[i].
This patch fix the race condition by moving cancel_work_sync functions
before alx_free_napis inside alx_stop. Because interrupt handler can call
alx_schedule_link_check again, alx_free_irq is moved before
cancel_work_sync calls too.
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The VNIC driver's "login" command sequence is the final step
in the driver's initialization process with device firmware,
confirming the available device queue resources to be utilized
by the driver. Under high system load, firmware may not respond
to the request in a timely manner or may abort the request. In
such cases, the driver should reattempt the login command
sequence. In case of a device error, the number of retries
is bounded.
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A recent change added a disable to NAPI into macb_open, this was
intended to only happen on the error path but accidentally applies
to all paths. This causes NAPI to be disabled on the success path, which
leads to the network to no longer functioning.
Fixes: 014406babc1f ("net: cadence: macb: disable NAPI on error")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Tested-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use kobj_to_dev() instead of container_of()
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a spelling mistake in a comment. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking fixes from David Miller:
1) Fix cfg80211 deadlock, from Johannes Berg.
2) RXRPC fails to send norigications, from David Howells.
3) MPTCP RM_ADDR parsing has an off by one pointer error, fix from
Geliang Tang.
4) Fix crash when using MSG_PEEK with sockmap, from Anny Hu.
5) The ucc_geth driver needs __netdev_watchdog_up exported, from
Valentin Longchamp.
6) Fix hashtable memory leak in dccp, from Wang Hai.
7) Fix how nexthops are marked as FDB nexthops, from David Ahern.
8) Fix mptcp races between shutdown and recvmsg, from Paolo Abeni.
9) Fix crashes in tipc_disc_rcv(), from Tuong Lien.
10) Fix link speed reporting in iavf driver, from Brett Creeley.
11) When a channel is used for XSK and then reused again later for XSK,
we forget to clear out the relevant data structures in mlx5 which
causes all kinds of problems. Fix from Maxim Mikityanskiy.
12) Fix memory leak in genetlink, from Cong Wang.
13) Disallow sockmap attachments to UDP sockets, it simply won't work.
From Lorenz Bauer.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (83 commits)
net: ethernet: ti: ale: fix allmulti for nu type ale
net: ethernet: ti: am65-cpsw-nuss: fix ale parameters init
net: atm: Remove the error message according to the atomic context
bpf: Undo internal BPF_PROBE_MEM in BPF insns dump
libbpf: Support pre-initializing .bss global variables
tools/bpftool: Fix skeleton codegen
bpf: Fix memlock accounting for sock_hash
bpf: sockmap: Don't attach programs to UDP sockets
bpf: tcp: Recv() should return 0 when the peer socket is closed
ibmvnic: Flush existing work items before device removal
genetlink: clean up family attributes allocations
net: ipa: header pad field only valid for AP->modem endpoint
net: ipa: program upper nibbles of sequencer type
net: ipa: fix modem LAN RX endpoint id
net: ipa: program metadata mask differently
ionic: add pcie_print_link_status
rxrpc: Fix race between incoming ACK parser and retransmitter
net/mlx5: E-Switch, Fix some error pointer dereferences
net/mlx5: Don't fail driver on failure to create debugfs
net/mlx5e: CT: Fix ipv6 nat header rewrite actions
...
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On AM65xx MCU CPSW2G NUSS and 66AK2E/L NUSS allmulti setting does not allow
unregistered mcast packets to pass.
This happens, because ALE VLAN entries on these SoCs do not contain port
masks for reg/unreg mcast packets, but instead store indexes of
ALE_VLAN_MASK_MUXx_REG registers which intended for store port masks for
reg/unreg mcast packets.
This path was missed by commit 9d1f6447274f ("net: ethernet: ti: ale: fix
seeing unreg mcast packets with promisc and allmulti disabled").
Hence, fix it by taking into account ALE type in cpsw_ale_set_allmulti().
Fixes: 9d1f6447274f ("net: ethernet: ti: ale: fix seeing unreg mcast packets with promisc and allmulti disabled")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The ALE parameters structure is created on stack, so it has to be reset
before passing to cpsw_ale_create() to avoid garbage values.
Fixes: 93a76530316a ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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