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After scan aborts we still receive some hw scan c2h packets, and
processing these c2h commands will change current channel. If device
already connect to other AP, driver will set wrong op channel due
to current channel changed. The disconnection happens when hw scan back
to wrong op channel that device can't receive beacon from AP. To fix
this issue, we ignore the late c2h if we are not scanning, and set
current channel back to op channel after scan to align the FW behavior.
Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220428020521.8015-3-pkshih@realtek.com
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Correct the judgment to let beacon filter disable after disconnection.
Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220428020521.8015-2-pkshih@realtek.com
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Each chip have best ampdu density value, the correct setting can improve
throughput performance.
Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220428020521.8015-1-pkshih@realtek.com
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All but 5 methods in dsa_swith_ops use tabs for indentation.
Change the 5 methods that break this rule.
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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with the usage of this function in nic_mbx_intr_handler().
Cache the Linux interrupt numbers in struct nicpf and use that cache in the
interrupt handler to select the mailbox.
Fixes: 495c66aca3da ("genirq/msi: Convert to new functions")
Reported-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Sunil Goutham <sgoutham@marvell.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2041772
Signed-off-by: David S. Miller <davem@davemloft.net>
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Eliminate the follow versioncheck warning:
./drivers/net/wireless/purelifi/plfxlc/usb.c: 20 linux/version.h not
needed.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220429075459.72029-1-jiapeng.chong@linux.alibaba.com
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Duoming Zhou says:
====================
Replace improper checks and fix bugs in nfc subsystem
The first patch is used to replace improper checks in netlink related
functions of nfc core, the second patch is used to fix bugs in
nfcmrvl driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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nfcmrvl_nci_unregister_dev to avoid bugs
There are destructive operations such as nfcmrvl_fw_dnld_abort and
gpio_free in nfcmrvl_nci_unregister_dev. The resources such as firmware,
gpio and so on could be destructed while the upper layer functions such as
nfcmrvl_fw_dnld_start and nfcmrvl_nci_recv_frame is executing, which leads
to double-free, use-after-free and null-ptr-deref bugs.
There are three situations that could lead to double-free bugs.
The first situation is shown below:
(Thread 1) | (Thread 2)
nfcmrvl_fw_dnld_start |
... | nfcmrvl_nci_unregister_dev
release_firmware() | nfcmrvl_fw_dnld_abort
kfree(fw) //(1) | fw_dnld_over
| release_firmware
... | kfree(fw) //(2)
| ...
The second situation is shown below:
(Thread 1) | (Thread 2)
nfcmrvl_fw_dnld_start |
... |
mod_timer |
(wait a time) |
fw_dnld_timeout | nfcmrvl_nci_unregister_dev
fw_dnld_over | nfcmrvl_fw_dnld_abort
release_firmware | fw_dnld_over
kfree(fw) //(1) | release_firmware
... | kfree(fw) //(2)
The third situation is shown below:
(Thread 1) | (Thread 2)
nfcmrvl_nci_recv_frame |
if(..->fw_download_in_progress)|
nfcmrvl_fw_dnld_recv_frame |
queue_work |
|
fw_dnld_rx_work | nfcmrvl_nci_unregister_dev
fw_dnld_over | nfcmrvl_fw_dnld_abort
release_firmware | fw_dnld_over
kfree(fw) //(1) | release_firmware
| kfree(fw) //(2)
The firmware struct is deallocated in position (1) and deallocated
in position (2) again.
The crash trace triggered by POC is like below:
BUG: KASAN: double-free or invalid-free in fw_dnld_over
Call Trace:
kfree
fw_dnld_over
nfcmrvl_nci_unregister_dev
nci_uart_tty_close
tty_ldisc_kill
tty_ldisc_hangup
__tty_hangup.part.0
tty_release
...
What's more, there are also use-after-free and null-ptr-deref bugs
in nfcmrvl_fw_dnld_start. If we deallocate firmware struct, gpio or
set null to the members of priv->fw_dnld in nfcmrvl_nci_unregister_dev,
then, we dereference firmware, gpio or the members of priv->fw_dnld in
nfcmrvl_fw_dnld_start, the UAF or NPD bugs will happen.
This patch reorders destructive operations after nci_unregister_device
in order to synchronize between cleanup routine and firmware download
routine.
The nci_unregister_device is well synchronized. If the device is
detaching, the firmware download routine will goto error. If firmware
download routine is executing, nci_unregister_device will wait until
firmware download routine is finished.
Fixes: 3194c6870158 ("NFC: nfcmrvl: add firmware download support")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The device_is_registered() in nfc core is used to check whether
nfc device is registered in netlink related functions such as
nfc_fw_download(), nfc_dev_up() and so on. Although device_is_registered()
is protected by device_lock, there is still a race condition between
device_del() and device_is_registered(). The root cause is that
kobject_del() in device_del() is not protected by device_lock.
(cleanup task) | (netlink task)
|
nfc_unregister_device | nfc_fw_download
device_del | device_lock
... | if (!device_is_registered)//(1)
kobject_del//(2) | ...
... | device_unlock
The device_is_registered() returns the value of state_in_sysfs and
the state_in_sysfs is set to zero in kobject_del(). If we pass check in
position (1), then set zero in position (2). As a result, the check
in position (1) is useless.
This patch uses bool variable instead of device_is_registered() to judge
whether the nfc device is registered, which is well synchronized.
Fixes: 3e256b8f8dfa ("NFC: add nfc subsystem core")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Based on DesignWare Ethernet QoS datasheet, we are seeing the limitation
of Split Header (SPH) feature is not supported for Ipv4 fragmented packet.
This SPH limitation will cause ping failure when the packets size exceed
the MTU size. For example, the issue happens once the basic ping packet
size is larger than the configured MTU size and the data is lost inside
the fragmented packet, replaced by zeros/corrupted values, and leads to
ping fail.
So, disable the Split Header for Intel platforms.
v2: Add fixes tag in commit message.
Fixes: 67afd6d1cfdf("net: stmmac: Add Split Header support and enable it in XGMAC cores")
Cc: <stable@vger.kernel.org> # 5.10.x
Suggested-by: Ong, Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com>
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: Tan Tee Min <tee.min.tan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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veth netdevice defines own rx queues and allocates array containing
up to 4095 ~750-bytes-long 'struct veth_rq' elements. Such allocation
is quite huge and should be accounted to memcg.
Signed-off-by: Vasily Averin <vvs@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pavel Begunkov says:
====================
UDP sock_wfree optimisations
The series is not UDP specific but that the main beneficiary. 2/3 saves one
atomic in sock_wfree() and on top 3/3 removes an extra barrier.
Tested with UDP over dummy netdev, 2038491 -> 2099071 req/s (or around +3%).
note: in regards to 1/3, there is a "Should agree with poll..." comment
that I don't completely get, and there is no git history to explain it.
Though I can't see how it could rely on having the second check without
racing with tasks woken by wake_up*().
The series was split from a larger patchset, see
https://lore.kernel.org/netdev/cover.1648981570.git.asml.silence@gmail.com/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now we have a separate path for sock_def_write_space() and can go one
step further. When it's called from sock_wfree() we know that there is a
preceding atomic for putting down ->sk_wmem_alloc. We can use it to
replace to replace smb_mb() with a less expensive
smp_mb__after_atomic(). It also removes an extra RCU read lock/unlock as
a small bonus.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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For non SOCK_USE_WRITE_QUEUE sockets, sock_wfree() (atomically) puts
->sk_wmem_alloc twice. It's needed to keep the socket alive while
calling ->sk_write_space() after the first put.
However, some sockets, such as UDP, are freed by RCU
(i.e. SOCK_RCU_FREE) and use already RCU-safe sock_def_write_space().
Carve a fast path for such sockets, put down all refs in one go before
calling sock_def_write_space() but guard the socket from being freed
by an RCU read section.
note: because TCP sockets are marked with SOCK_USE_WRITE_QUEUE it
doesn't add extra checks in its path.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Except for minor rounding differences the first ->sk_wmem_alloc test in
sock_def_write_space() is a hand coded version of sock_writeable().
Replace it with the helper, and also kill the following if duplicating
the check.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With some SFP modules, such as Finisar FCLF8522P2BTL, the PHY hardware
strapping defaults to 1000BaseX mode, but the kernel prefers to set them
for SGMII mode. When this happens and the PHY is soft reset, the BMSR
status register is updated, but this happens after the kernel has already
read the PHY abilities during probing. This results in support not being
detected for, and the PHY not advertising support for, 10 and 100 Mbps
modes, preventing the link from working with a non-gigabit link partner.
When the PHY is being configured for SGMII mode, call genphy_read_abilities
again in order to re-read the capabilities, and update the advertising
field accordingly.
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are two major issues in the logic calculating the symbol durations
based on the page/channel:
- The page number is used in place of the channel value.
- The BIT() macro is missing because we want to check the channel
value against a bitmask.
Fix these two errors and apologize loudly for this mistake.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220428164140.251965-1-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are some small driver core and kernfs fixes for some reported
problems. They include:
- kernfs regression that is causing oopses in 5.17 and newer releases
- topology sysfs fixes for a few small reported problems.
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
kernfs: fix NULL dereferencing in kernfs_remove
topology: Fix up build warning in topology_is_visible()
arch_topology: Do not set llc_sibling if llc_id is invalid
topology: make core_mask include at least cluster_siblings
topology/sysfs: Hide PPIN on systems that do not support it.
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a small number of char/misc/other driver fixes for 5.18-rc5
Nothing major in here, this is mostly IIO driver fixes along with some
other small things:
- at25 driver fix for systems without a dma-able stack
- phy driver fixes for reported issues
- binder driver fixes for reported issues
All of these have been in linux-next without any reported problems"
* tag 'char-misc-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (31 commits)
eeprom: at25: Use DMA safe buffers
binder: Gracefully handle BINDER_TYPE_FDA objects with num_fds=0
binder: Address corner cases in deferred copy and fixup
phy: amlogic: fix error path in phy_g12a_usb3_pcie_probe()
iio: imu: inv_icm42600: Fix I2C init possible nack
iio: dac: ltc2688: fix voltage scale read
interconnect: qcom: sdx55: Drop IP0 interconnects
interconnect: qcom: sc7180: Drop IP0 interconnects
phy: ti: Add missing pm_runtime_disable() in serdes_am654_probe
phy: mapphone-mdm6600: Fix PM error handling in phy_mdm6600_probe
phy: ti: omap-usb2: Fix error handling in omap_usb2_enable_clocks
bus: mhi: host: pci_generic: Flush recovery worker during freeze
bus: mhi: host: pci_generic: Add missing poweroff() PM callback
phy: ti: tusb1210: Fix an error handling path in tusb1210_probe()
phy: samsung: exynos5250-sata: fix missing device put in probe error paths
phy: samsung: Fix missing of_node_put() in exynos_sata_phy_probe
phy: ti: Fix missing of_node_put in ti_pipe3_get_sysctrl()
phy: ti: tusb1210: Make tusb1210_chg_det_states static
iio:dac:ad3552r: Fix an IS_ERR() vs NULL check
iio: sx9324: Fix default precharge internal resistance register
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some small serial driver fixes, and a larger number of GSM
line discipline fixes for 5.18-rc5.
These include:
- lots of tiny n_gsm fixes for issues to resolve a number of reported
problems. Seems that people are starting to actually use this code
again.
- 8250 driver fixes for some devices
- imx serial driver fix
- amba-pl011 driver fix
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (27 commits)
tty: n_gsm: fix sometimes uninitialized warning in gsm_dlci_modem_output()
serial: 8250: Correct the clock for EndRun PTP/1588 PCIe device
serial: 8250: Also set sticky MCR bits in console restoration
tty: n_gsm: fix software flow control handling
tty: n_gsm: fix invalid use of MSC in advanced option
tty: n_gsm: fix broken virtual tty handling
Revert "serial: sc16is7xx: Clear RS485 bits in the shutdown"
tty: n_gsm: fix missing update of modem controls after DLCI open
serial: 8250: Fix runtime PM for start_tx() for empty buffer
serial: imx: fix overrun interrupts in DMA mode
serial: amba-pl011: do not time out prematurely when draining tx fifo
tty: n_gsm: fix incorrect UA handling
tty: n_gsm: fix reset fifo race condition
tty: n_gsm: fix missing tty wakeup in convergence layer type 2
tty: n_gsm: fix wrong signal octets encoding in MSC
tty: n_gsm: fix wrong command frame length field encoding
tty: n_gsm: fix wrong command retry handling
tty: n_gsm: fix missing explicit ldisc flush
tty: n_gsm: fix wrong DLCI release order
tty: n_gsm: fix insufficient txframe size
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of small USB driver fixes for 5.18-rc5 for some
reported issues and new quirks. They include:
- dwc3 driver fixes
- xhci driver fixes
- typec driver fixes
- new usb-serial driver ids
- added new USB devices to existing quirk tables
- other tiny fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (31 commits)
usb: phy: generic: Get the vbus supply
usb: dwc3: gadget: Return proper request status
usb: dwc3: pci: add support for the Intel Meteor Lake-P
usb: dwc3: core: Only handle soft-reset in DCTL
usb: gadget: configfs: clear deactivation flag in configfs_composite_unbind()
usb: misc: eud: Fix an error handling path in eud_probe()
usb: core: Don't hold the device lock while sleeping in do_proc_control()
usb: dwc3: Try usb-role-switch first in dwc3_drd_init
usb: dwc3: core: Fix tx/rx threshold settings
usb: mtu3: fix USB 3.0 dual-role-switch from device to host
xhci: Enable runtime PM on second Alderlake controller
usb: dwc3: fix backwards compat with rockchip devices
dt-bindings: usb: samsung,exynos-usb2: add missing required reg
usb: misc: fix improper handling of refcount in uss720_probe()
USB: Fix ehci infinite suspend-resume loop issue in zhaoxin
usb: typec: tcpm: Fix undefined behavior due to shift overflowing the constant
usb: typec: rt1719: Fix build error without CONFIG_POWER_SUPPLY
usb: typec: ucsi: Fix role swapping
usb: typec: ucsi: Fix reuse of completion structure
usb: xhci: tegra:Fix PM usage reference leak of tegra_xusb_unpowergate_partitions
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"One fix for an endless error loop with the target driver affecting
tapes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target: pscsi: Set SCF_TREAT_READ_AS_NORMAL flag only if there is valid data
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Starting from the blamed commit, the lan966x build fails with the
following compilation error:
drivers/net/ethernet/microchip/lan966x/lan966x_ptp.c:342:9: error: implicit declaration of function ‘ptp_find_pin_unlocked’ [-Werror=implicit-function-declaration]
342 | pin = ptp_find_pin_unlocked(phc->clock, PTP_PF_EXTTS, 0);
The issue is that there is no stub function for ptp_find_pin_unlocked
in case CONFIG_PTP_1588_CLOCK is not selected. Therefore add one.
Reported-by: kernel test robot <lkp@intel.com>
Fixes: f3d8e0a9c28ba0 ("net: lan966x: Add support for PTP_PF_EXTTS")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Whenever RCU protected list replaces an object,
the pointer to the new object needs to be updated
_before_ the call to kfree_rcu() or call_rcu()
Also ip6_mc_msfilter() needs to update the pointer
before releasing the mc_lock mutex.
Note that linux-5.13 was supporting kfree_rcu(NULL, rcu),
so this fix does not need the conditional test I was
forced to use in the equivalent patch for IPv4.
Fixes: 882ba1f73c06 ("mld: convert ipv6_mc_socklist->sflist to RCU")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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syzbot reported an UAF in ip_mc_sf_allow() [1]
Whenever RCU protected list replaces an object,
the pointer to the new object needs to be updated
_before_ the call to kfree_rcu() or call_rcu()
Because kfree_rcu(ptr, rcu) got support for NULL ptr
only recently in commit 12edff045bc6 ("rcu: Make kfree_rcu()
ignore NULL pointers"), I chose to use the conditional
to make sure stable backports won't miss this detail.
if (psl)
kfree_rcu(psl, rcu);
net/ipv6/mcast.c has similar issues, addressed in a separate patch.
[1]
BUG: KASAN: use-after-free in ip_mc_sf_allow+0x6bb/0x6d0 net/ipv4/igmp.c:2655
Read of size 4 at addr ffff88807d37b904 by task syz-executor.5/908
CPU: 0 PID: 908 Comm: syz-executor.5 Not tainted 5.18.0-rc4-syzkaller-00064-g8f4dd16603ce #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_address_description.constprop.0.cold+0xeb/0x467 mm/kasan/report.c:313
print_report mm/kasan/report.c:429 [inline]
kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491
ip_mc_sf_allow+0x6bb/0x6d0 net/ipv4/igmp.c:2655
raw_v4_input net/ipv4/raw.c:190 [inline]
raw_local_deliver+0x4d1/0xbe0 net/ipv4/raw.c:218
ip_protocol_deliver_rcu+0xcf/0xb30 net/ipv4/ip_input.c:193
ip_local_deliver_finish+0x2ee/0x4c0 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:461 [inline]
ip_rcv_finish+0x1cb/0x2f0 net/ipv4/ip_input.c:437
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:556
__netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5405
__netif_receive_skb+0x24/0x1b0 net/core/dev.c:5519
netif_receive_skb_internal net/core/dev.c:5605 [inline]
netif_receive_skb+0x13e/0x8e0 net/core/dev.c:5664
tun_rx_batched.isra.0+0x460/0x720 drivers/net/tun.c:1534
tun_get_user+0x28b7/0x3e30 drivers/net/tun.c:1985
tun_chr_write_iter+0xdb/0x200 drivers/net/tun.c:2015
call_write_iter include/linux/fs.h:2050 [inline]
new_sync_write+0x38a/0x560 fs/read_write.c:504
vfs_write+0x7c0/0xac0 fs/read_write.c:591
ksys_write+0x127/0x250 fs/read_write.c:644
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3f12c3bbff
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48
RSP: 002b:00007f3f13ea9130 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f3f12d9bf60 RCX: 00007f3f12c3bbff
RDX: 0000000000000036 RSI: 0000000020002ac0 RDI: 00000000000000c8
RBP: 00007f3f12ce308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000036 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fffb68dd79f R14: 00007f3f13ea9300 R15: 0000000000022000
</TASK>
Allocated by task 908:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:436 [inline]
____kasan_kmalloc mm/kasan/common.c:515 [inline]
____kasan_kmalloc mm/kasan/common.c:474 [inline]
__kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:524
kasan_kmalloc include/linux/kasan.h:234 [inline]
__do_kmalloc mm/slab.c:3710 [inline]
__kmalloc+0x209/0x4d0 mm/slab.c:3719
kmalloc include/linux/slab.h:586 [inline]
sock_kmalloc net/core/sock.c:2501 [inline]
sock_kmalloc+0xb5/0x100 net/core/sock.c:2492
ip_mc_source+0xba2/0x1100 net/ipv4/igmp.c:2392
do_ip_setsockopt net/ipv4/ip_sockglue.c:1296 [inline]
ip_setsockopt+0x2312/0x3ab0 net/ipv4/ip_sockglue.c:1432
raw_setsockopt+0x274/0x2c0 net/ipv4/raw.c:861
__sys_setsockopt+0x2db/0x6a0 net/socket.c:2180
__do_sys_setsockopt net/socket.c:2191 [inline]
__se_sys_setsockopt net/socket.c:2188 [inline]
__x64_sys_setsockopt+0xba/0x150 net/socket.c:2188
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
Freed by task 753:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track+0x21/0x30 mm/kasan/common.c:45
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
____kasan_slab_free mm/kasan/common.c:366 [inline]
____kasan_slab_free+0x13d/0x180 mm/kasan/common.c:328
kasan_slab_free include/linux/kasan.h:200 [inline]
__cache_free mm/slab.c:3439 [inline]
kmem_cache_free_bulk+0x69/0x460 mm/slab.c:3774
kfree_bulk include/linux/slab.h:437 [inline]
kfree_rcu_work+0x51c/0xa10 kernel/rcu/tree.c:3318
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Last potentially related work creation:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
__kasan_record_aux_stack+0x7e/0x90 mm/kasan/generic.c:348
kvfree_call_rcu+0x74/0x990 kernel/rcu/tree.c:3595
ip_mc_msfilter+0x712/0xb60 net/ipv4/igmp.c:2510
do_ip_setsockopt net/ipv4/ip_sockglue.c:1257 [inline]
ip_setsockopt+0x32e1/0x3ab0 net/ipv4/ip_sockglue.c:1432
raw_setsockopt+0x274/0x2c0 net/ipv4/raw.c:861
__sys_setsockopt+0x2db/0x6a0 net/socket.c:2180
__do_sys_setsockopt net/socket.c:2191 [inline]
__se_sys_setsockopt net/socket.c:2188 [inline]
__x64_sys_setsockopt+0xba/0x150 net/socket.c:2188
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
Second to last potentially related work creation:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
__kasan_record_aux_stack+0x7e/0x90 mm/kasan/generic.c:348
call_rcu+0x99/0x790 kernel/rcu/tree.c:3074
mpls_dev_notify+0x552/0x8a0 net/mpls/af_mpls.c:1656
notifier_call_chain+0xb5/0x200 kernel/notifier.c:84
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1938
call_netdevice_notifiers_extack net/core/dev.c:1976 [inline]
call_netdevice_notifiers net/core/dev.c:1990 [inline]
unregister_netdevice_many+0x92e/0x1890 net/core/dev.c:10751
default_device_exit_batch+0x449/0x590 net/core/dev.c:11245
ops_exit_list+0x125/0x170 net/core/net_namespace.c:167
cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:594
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
The buggy address belongs to the object at ffff88807d37b900
which belongs to the cache kmalloc-64 of size 64
The buggy address is located 4 bytes inside of
64-byte region [ffff88807d37b900, ffff88807d37b940)
The buggy address belongs to the physical page:
page:ffffea0001f4dec0 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88807d37b180 pfn:0x7d37b
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffff888010c41340 ffffea0001c795c8 ffff888010c40200
raw: ffff88807d37b180 ffff88807d37b000 000000010000001f 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x342040(__GFP_IO|__GFP_NOWARN|__GFP_COMP|__GFP_HARDWALL|__GFP_THISNODE), pid 2963, tgid 2963 (udevd), ts 139732238007, free_ts 139730893262
prep_new_page mm/page_alloc.c:2441 [inline]
get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4182
__alloc_pages+0x1b2/0x500 mm/page_alloc.c:5408
__alloc_pages_node include/linux/gfp.h:587 [inline]
kmem_getpages mm/slab.c:1378 [inline]
cache_grow_begin+0x75/0x350 mm/slab.c:2584
cache_alloc_refill+0x27f/0x380 mm/slab.c:2957
____cache_alloc mm/slab.c:3040 [inline]
____cache_alloc mm/slab.c:3023 [inline]
__do_cache_alloc mm/slab.c:3267 [inline]
slab_alloc mm/slab.c:3309 [inline]
__do_kmalloc mm/slab.c:3708 [inline]
__kmalloc+0x3b3/0x4d0 mm/slab.c:3719
kmalloc include/linux/slab.h:586 [inline]
kzalloc include/linux/slab.h:714 [inline]
tomoyo_encode2.part.0+0xe9/0x3a0 security/tomoyo/realpath.c:45
tomoyo_encode2 security/tomoyo/realpath.c:31 [inline]
tomoyo_encode+0x28/0x50 security/tomoyo/realpath.c:80
tomoyo_realpath_from_path+0x186/0x620 security/tomoyo/realpath.c:288
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x21b/0x400 security/tomoyo/file.c:822
security_inode_getattr+0xcf/0x140 security/security.c:1350
vfs_getattr fs/stat.c:157 [inline]
vfs_statx+0x16a/0x390 fs/stat.c:232
vfs_fstatat+0x8c/0xb0 fs/stat.c:255
__do_sys_newfstatat+0x91/0x110 fs/stat.c:425
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1356 [inline]
free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1406
free_unref_page_prepare mm/page_alloc.c:3328 [inline]
free_unref_page+0x19/0x6a0 mm/page_alloc.c:3423
__vunmap+0x85d/0xd30 mm/vmalloc.c:2667
__vfree+0x3c/0xd0 mm/vmalloc.c:2715
vfree+0x5a/0x90 mm/vmalloc.c:2746
__do_replace+0x16b/0x890 net/ipv6/netfilter/ip6_tables.c:1117
do_replace net/ipv6/netfilter/ip6_tables.c:1157 [inline]
do_ip6t_set_ctl+0x90d/0xb90 net/ipv6/netfilter/ip6_tables.c:1639
nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101
ipv6_setsockopt+0x122/0x180 net/ipv6/ipv6_sockglue.c:1026
tcp_setsockopt+0x136/0x2520 net/ipv4/tcp.c:3696
__sys_setsockopt+0x2db/0x6a0 net/socket.c:2180
__do_sys_setsockopt net/socket.c:2191 [inline]
__se_sys_setsockopt net/socket.c:2188 [inline]
__x64_sys_setsockopt+0xba/0x150 net/socket.c:2188
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
Memory state around the buggy address:
ffff88807d37b800: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
ffff88807d37b880: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
>ffff88807d37b900: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff88807d37b980: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff88807d37ba00: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
Fixes: c85bb41e9318 ("igmp: fix ip_mc_sf_allow race [v5]")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Flavio Leitner <fbl@sysclose.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
remove unnecessary void* type castings.
Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Defining local versions of NAPI_POLL_WEIGHT with the same
values in the drivers just makes refactoring harder.
This patch covers three more drivers which I missed in
commit 5f012b40ef63 ("eth: remove copies of the NAPI_POLL_WEIGHT define").
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
AF_RXRPC doesn't currently enable IPv6 UDP Tx checksums on the transport
socket it opens and the checksums in the packets it generates end up 0.
It probably should also enable IPv6 UDP Rx checksums and IPv4 UDP
checksums. The latter only seem to be applied if the socket family is
AF_INET and don't seem to apply if it's AF_INET6. IPv4 packets from an
IPv6 socket seem to have checksums anyway.
What seems to have happened is that the inet_inv_convert_csum() call didn't
get converted to the appropriate udp_port_cfg parameters - and
udp_sock_create() disables checksums unless explicitly told not too.
Fix this by enabling the three udp_port_cfg checksum options.
Fixes: 1a9b86c9fd95 ("rxrpc: use udp tunnel APIs instead of open code in rxrpc_open_socket")
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
cc: Vadim Fedorenko <vfedorenko@novek.ru>
cc: David S. Miller <davem@davemloft.net>
cc: linux-afs@lists.infradead.org
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This patch doesn't change any functionality.
Signed-off-by: Pengcheng Yang <yangpc@wangsu.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Tested-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Simplify the return expression.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Reduce verbosity of ptp tx timestamp error to reduce excessive log
messages.
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
There is a desire to share the oclot_stats_layout struct outside of the
current vsc7514 driver. In order to do so, the length of the array needs to
be known at compile time, and defined in the struct ocelot and struct
felix_info.
Since the array is defined in a .c file and would be declared in the header
file via:
extern struct ocelot_stat_layout[];
the size of the array will not be known at compile time to outside modules.
To fix this, remove the need for defining the number of stats at compile
time and allow this number to be determined at initialization.
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
'tmp_node' need be put before returning from cpsw_probe_dt(),
so add missing of_node_put() in error path.
Fixes: ed3525eda4c4 ("net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
In commit f84af32cbca7 ("net: ip_queue_rcv_skb() helper")
I dropped the skb dst in tcp_data_queue().
This only dealt with so-called TCP input slow path.
When fast path is taken, tcp_rcv_established() calls
tcp_queue_rcv() while skb still has a dst.
This was mostly fine, because most dsts at this point
are not refcounted (thanks to early demux)
However, TCP packets sent over loopback have refcounted dst.
Then commit 68822bdf76f1 ("net: generalize skb freeing
deferral to per-cpu lists") came and had the effect
of delaying skb freeing for an arbitrary time.
If during this time the involved netns is dismantled, cleanup_net()
frees the struct net with embedded net->ipv6.ip6_dst_ops.
Then when eventually dst_destroy_rcu() is called,
if (dst->ops->destroy) ... triggers an use-after-free.
It is not clear if ip6_route_net_exit() lacks a rcu_barrier()
as syzbot reported similar issues before the blamed commit.
( https://groups.google.com/g/syzkaller-bugs/c/CofzW4eeA9A/m/009WjumTAAAJ )
Fixes: 68822bdf76f1 ("net: generalize skb freeing deferral to per-cpu lists")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Michael Walle says:
====================
net: lan966x: remove PHY reset support
Remove the unneeded PHY reset node as well as the driver support for it.
This was already discussed [1] and I expect Microchip to Ack on this
removal. Since there is no user, no breakage is expected.
I'm not sure it this should go through net or net-next and if the patches
should have a Fixes: tag or not. In upstream linux there was never any user
of it, so there is no bug to be fixed. But OTOH if the schema fix isn't
backported, then there might be an older schema version still containing
the reset node. Thoughts?
The patches needed for the GPIO part are just waiting to be picked up by
Linus [2,3]. This patch and the GPIO parts are the last pieces of the
puzzle to get ethernet working on the LAN9668 on upstream linux.
[1] https://lore.kernel.org/netdev/20220330110210.3374165-1-michael@walle.cc/
[2] https://lore.kernel.org/linux-gpio/CACRpkdbxmN+SWt95aGHjA2ZGnN61aWaA7c5S4PaG+WePAj=htg@mail.gmail.com/
[3] https://lore.kernel.org/linux-gpio/20220420191926.3411830-1-michael@walle.cc/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The PHY subsystem as well as the MIIM mdio driver (in case of the
integrated PHYs) will take care of the resets. A separate reset driver
isn't needed. There is no in-tree user of this feature. Remove the
support.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The PHY reset was intended to be a phandle for a special PHY reset
driver for the integrated PHYs as well as any external PHYs. It turns
out, that the culprit is how the reset of the switch device is done.
In particular, the switch reset also affects other subsystems like
the GPIO and the SGPIO block and it happens to be the case that the
reset lines of the external PHYs are connected to a common GPIO line.
Thus as soon as the switch issues a reset during probe time, all the
external PHYs will go into reset because all the GPIO lines will
switch to input and the pull-down on that signal will take effect.
So even if there was a special PHY reset driver, it (1) won't fix
the root cause of the problem and (2) it won't fix all the other
consumers of GPIO lines which will also be reset.
It turns out, the Ocelot SoC has the same weird behavior (or the
lack of a dedicated switch reset) and there the problem is already
solved and all the bits and pieces are already there and this PHY
reset property isn't not needed at all.
There are no users of this binding. Just remove it.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Pavel Begunkov says:
====================
generic net and ipv6 minor optimisations
1-3 inline simple functions that only reshuffle arguments possibly adding
extra zero args, and call another function. It was benchmarked before with
a bunch of extra patches, see for details
https://lore.kernel.org/netdev/cover.1648981570.git.asml.silence@gmail.com/
It may increase the binary size, but it's the right thing to do and at least
without modules it actually sheds some bytes for some standard-ish config.
text data bss dec hex filename
9627200 0 0 9627200 92e640 ./arch/x86_64/boot/bzImage
text data bss dec hex filename
9627104 0 0 9627104 92e5e0 ./arch/x86_64/boot/bzImage
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Throw neigh checks in ip6_finish_output2() under a single slow path if,
so we don't have the overhead in the hot path.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
There are two callers of __ip6_finish_output(), both are in
ip6_finish_output(). We can combine the call sites into one and handle
return code after, that will inline __ip6_finish_output().
Note, error handling under NET_XMIT_CN will only return 0 if
__ip6_finish_output() succeded, and in this case it return 0.
Considering that NET_XMIT_SUCCESS is 0, it'll be returning exactly the
same result for it as before.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Inline dev_queue_xmit() and dev_queue_xmit_accel(), they both are small
proxy functions doing nothing but redirecting the control flow to
__dev_queue_xmit().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
skb_zerocopy_iter_dgram() is a small proxy function, inline it. For
that, move __zerocopy_sg_from_iter into linux/skbuff.h
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
sock_alloc_send_skb() is simple and just proxying to another function,
so we can inline it and cut associated overhead.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
sun8i_dwmac_register_mdio_mux()
The node pointer returned by of_get_child_by_name() with refcount incremented,
so add of_node_put() after using it.
Fixes: 634db83b8265 ("net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220428095716.540452-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Add of_node_put() if of_get_phy_mode() fails in mt7530_setup()
Fixes: 0c65b2b90d13 ("net: of_get_phy_mode: Change API to solve int/unit warnings")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220428095317.538829-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/kuba/linux
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
This is currently done for CMSG_INQ, add an ability to do so via struct
msghdr as well and have CMSG_INQ use that too. If the caller sets
msghdr->msg_get_inq, then we'll pass back the hint in msghdr->msg_inq.
Rearrange struct msghdr a bit so we can add this member while shrinking
it at the same time. On a 64-bit build, it was 96 bytes before this
change and 88 bytes afterwards.
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/650c22ca-cffc-0255-9a05-2413a1e20826@kernel.dk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
The device info from which conntrack originates is stored in metadata
field of the ct flow to offload now, driver can utilize it to reduce
the number of offloaded flows.
v2: Drop inline keyword from get_netdev_from_rule() signature.
The compiler can decide.
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220429075124.128589-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
This patch extends the EF100 PF driver by adding .sriov_configure()
which would allow users to enable and disable virtual functions
using the sriov sysfs.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/75e74d9e-14ce-0524-9668-5ab735a7cf62@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
This patch limits the sniffing to only one port during the mirror add.
And during the mirror_del it checks for all the ports using the sniff,
if and only if no other ports are referring, sniffing is disabled.
The code is updated based on the review comments of LAN937x port mirror
patch.
Link: https://patchwork.kernel.org/project/netdevbpf/patch/20210422094257.1641396-8-prasanna.vengateshan@microchip.com/
Fixes: b987e98e50ab ("dsa: add DSA switch driver for Microchip KSZ9477")
Signed-off-by: Prasanna Vengateshan <prasanna.vengateshan@microchip.com>
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Link: https://lore.kernel.org/r/20220428070709.7094-1-arun.ramadoss@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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