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2026-05-14memory: tegra114-emc: Do not print error on icc_node_create() failureKrzysztof Kozlowski
icc_node_create() is alloc-like function, so no need to print error messages on its failure. Dropping one label makes the code a bit simpler. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Link: https://patch.msgid.link/20260504190004.747509-3-krzysztof.kozlowski@oss.qualcomm.com
2026-05-14clk: samsung: exynos850: mark APM I3C clocks as criticalAlexey Klimov
The Exynos850 APM co-processor relies on the I3C bus to communicate with the PMIC. Currently, there is no dedicated PMIC consumer driver managing these clocks, so the clock subsystem automatically gates them during the initialisation. Once gated, any subsequent ACPM communication with APM results in timeouts. As a temporary workaround (and let's hope it doesn't become permanent), mark both `gout_i3c_pclk` and `gout_i3c_sclk` as CLK_IS_CRITICAL ones to prevent the clock subsystem from disabling them. This makes the ACPM communication functional. This workaround should be reverted once a proper ACPM PMIC driver is implemented to manage these clocks. Cc: Sam Protsenko <semen.protsenko@linaro.org> Cc: Tudor Ambarus <tudor.ambarus@linaro.org> Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org> Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org> Link: https://patch.msgid.link/20260430-exynos850-i3c-criticalclocks-v1-1-6e1fd8dfa21b@linaro.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2026-05-14Merge tag 'net-7.1-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from netfilter. Previous releases - regressions: - ethtool: fix NULL pointer dereference in phy_reply_size - netfilter: - allocate hook ops while under mutex - close dangling table module init race - restore nf_conntrack helper propagation via expectation - tcp: - fix potential UAF in reqsk_timer_handler(). - fix out-of-bounds access for twsk in tcp_ao_established_key(). - vsock: fix empty payload in tap skb for non-linear buffers - hsr: fix NULL pointer dereference in hsr_get_node_data() - eth: - cortina: fix RX drop accounting - ice: fix locking in ice_dcb_rebuild() Previous releases - always broken: - napi: avoid gro timer misfiring at end of busypoll - sched: - dualpi2: initialize timer earlier in dualpi2_init() - sch_cbs: Call qdisc_reset for child qdisc - shaper: - fix ordering issue in net_shaper_commit() - reject handle IDs exceeding internal bit-width - ipv6: flowlabel: enforce per-netns limit for unprivileged callers - tls: fix off-by-one in sg_chain entry count for wrapped sk_msg ring - smc: avoid NULL deref of conn->lnk in smc_msg_event tracepoint - sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL - batman-adv: - reject new tp_meter sessions during teardown - purge non-released claims - eth: - i40e: cleanup PTP registration on probe failure - idpf: fix double free and use-after-free in aux device error paths - ena: fix potential use-after-free in get_timestamp" * tag 'net-7.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits) net: phy: DP83TC811: add reading of abilities net: tls: prevent chain-after-chain in plain text SG net: tls: fix off-by-one in sg_chain entry count for wrapped sk_msg ring net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot macsec: use rcu_work to defer TX SA crypto cleanup out of softirq macsec: use rcu_work to defer RX SA crypto cleanup out of softirq macsec: introduce dedicated workqueue for SA crypto cleanup net: net_failover: Fix the deadlock in slave register MAINTAINERS: update atlantic driver maintainer selftests/tc-testing: Add QFQ/CBS qlen underflow test net/sched: sch_cbs: Call qdisc_reset for child qdisc FDDI: defza: Sanitise the reset safety timer net: ethernet: ravb: Do not check URAM suspension when WoL is active ethtool: fix ethnl_bitmap32_not_zero() bit interval semantics net/smc: avoid NULL deref of conn->lnk in smc_msg_event tracepoint net/smc: fix sleep-inside-lock in __smc_setsockopt() causing local DoS net: atm: fix skb leak in sigd_send() default branch net: ethtool: phy: avoid NULL deref when PHY driver is unbound net: atlantic: preserve PCI wake-from-D3 on shutdown when WOL enabled net: shaper: reject QUEUE scope handle with missing id ...
2026-05-14phy: mediatek: xsphy: reduce main allocationRosen Penev
Instead of kzalloc and kcalloc, we can use a flex array to reduce to a single allocation. Also added __counted_by() for extra possible analysis. Signed-off-by: Rosen Penev <rosenp@gmail.com> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://patch.msgid.link/20260304043420.14151-1-rosenp@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: qcom-usb-hs: use flexible array memberRosen Penev
Simplify allocation by removing kmalloc_array and just doing kzalloc. Signed-off-by: Rosen Penev <rosenp@gmail.com> Link: https://patch.msgid.link/20260315214930.4621-1-rosenp@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: apple: atc: Fix typec switch/mux leak on unbindDavid Carlier
atcphy_probe_switch() and atcphy_probe_mux() discard the pointers returned by typec_switch_register() and typec_mux_register(). The platform driver has no .remove callback, so when the driver unbinds (e.g. via sysfs unbind) neither typec_switch_unregister() nor typec_mux_unregister() is called. The framework reference taken in typec_switch_register() (device_initialize() + device_add() in drivers/usb/typec/mux.c) is therefore never dropped and the typec_switch_dev / typec_mux_dev objects stay live forever, with their sysfs entries under the typec_mux class also left behind. A subsequent rebind cannot recreate them with the same fwnode-derived name. Save the registered handles and unregister them through devm_add_action_or_reset() so framework registration is torn down in step with the driver's other devm-managed state. While here, drop struct apple_atcphy::sw and ::mux: they were declared with the consumer-side types (typec_switch *, typec_mux *) instead of the provider-side types and were never assigned. Scope of the fix ================ This patch fixes the registration leak only. It does not close the use-after-free window that arises when a consumer that obtained a reference via fwnode_typec_switch_get() / fwnode_typec_mux_get() outlives the provider unbind: such consumers keep the underlying typec_switch_dev / typec_mux_dev alive past device_unregister(), and a later typec_switch_set() / typec_mux_set() still invokes the registered atcphy_sw_set() / atcphy_mux_set(), which dereferences the freed apple_atcphy through typec_{switch,mux}_get_drvdata(). On Apple Silicon the relevant consumers are the typec port and the cd321x controller registered by drivers/usb/typec/tipd/core.c. Cable plug / orientation events and alt-mode transitions trigger the .set callbacks via: tps6598x_interrupt() drivers/usb/typec/tipd/core.c tps6598x_handle_plug_event() tps6598x_connect()/_disconnect() typec_set_orientation() drivers/usb/typec/class.c typec_switch_set(port->sw) drivers/usb/typec/mux.c atcphy_sw_set() drivers/phy/apple/atc.c cd321x_update_work() drivers/usb/typec/tipd/core.c cd321x_typec_update_mode() typec_mux_set(cd321x->mux) drivers/usb/typec/mux.c atcphy_mux_set() drivers/phy/apple/atc.c Closing that window requires framework support for invalidating consumer-held references on provider unbind. The same consumer-survives-provider pattern has been discussed for the PHY framework [1] and is out of scope here. [1] https://lore.kernel.org/linux-phy/aZejMSJ9qqRWb2pX@google.com/ Fixes: 8e98ca1e74db ("phy: apple: Add Apple Type-C PHY") Signed-off-by: David Carlier <devnexen@gmail.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Tested-by: Joshua Peisach <jpeisach@ubuntu.com> Link: https://lkml.kernel.org/r/6ec1ed08328340db42655287afd5fa4067316b11.camel@perches.com Link: https://patch.msgid.link/20260508201958.30060-1-devnexen@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: econet: Add PCIe PHY driver for EcoNet EN751221 and EN7528 SoCs.Caleb James DeLisle
Introduce support for EcoNet PCIe PHY controllers found in EN751221 and EN7528 SoCs, these SoCs are not identical but are similar, each having one Gen1 port, and one Gen1/Gen2 port. Co-developed-by: Ahmed Naseef <naseefkm@gmail.com> Signed-off-by: Ahmed Naseef <naseefkm@gmail.com> [cjd@cjdns.fr: add EN751221 support and refactor for clarity] Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr> Link: https://patch.msgid.link/20260425173642.406089-3-cjd@cjdns.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: rockchip: inno-usb2: Add support for RK3528Jianwei Zheng
The RK3528 has a single USB2PHY with a otg and host port. Add support for the RK3528 variant of USB2PHY. PHY tuning for RK3528: - Turn off differential receiver in suspend mode to save power consumption. - Set HS eye-height to 400mV instead of default 450mV. - Choose the Tx fs/ls data as linestate from TX driver for otg port which uses dwc3 controller to improve fs/ls devices compatibility with long cables. Undocumented magic-values are based on the linux-stan-6.1-rkr5 tag of the vendor-kernel. Signed-off-by: Jianwei Zheng <jianwei.zheng@rock-chips.com> Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20260505170410.3265305-6-heiko@sntech.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: rockchip: inno-usb2: Add clkout_ctl_phy supportJonas Karlman
The 480m clk is controlled using regs in the PHY address space and not in the USB GRF address space on e.g. RK3528 and RK3506. Add a clkout_ctl_phy usb2phy_reg to handle enable/disable of the 480m clk on these SoCs. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20260505170410.3265305-5-heiko@sntech.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: rockchip: inno-usb2: Simplify rockchip,usbgrf handlingJonas Karlman
The logic to decide if usbgrf or grf should be used is more complex than it needs to be. For RK3568, RV1108 and soon RK3528 we can assign the rockchip,usbgrf regmap directly to grf instead of doing a usbgrf and grf dance. Simplify the code to only use the grf regmap and handle the logic of what regmap should be used in driver probe instead. The only expected change from this is that RK3528 can be supported because of an addition of a of_property_present() check. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20260505170410.3265305-3-heiko@sntech.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: phy-can-transceiver: Drop unused includeAndy Shevchenko
This file does not use the symbols from the legacy <linux/gpio.h> header, so let's drop it. Reviewed-by: Josua Mayer <josua@solid-run.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20260513220336.369628-7-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: phy-can-transceiver: Decouple assignment and definition in probeAndy Shevchenko
The code like int foo = X; ... if (bar) foo = Y; is prone to subtle mistakes and hence harder to maintain as the foo value may be changed inadvertently while code in '...' grown in lines. On top it's harder to navigate to understand the possible values of foo when branch is not taken (requires to look somewhere else in the code, far from the piece at hand). Besides that in case of taken branch the foo will be rewritten, which is not a problem per se, just an unneeded operation. Decouple assignment and definition to use if-else to address the inconveniences described above. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20260513220336.369628-6-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: phy-can-transceiver: Don't check for specific errors when parsing ↵Andy Shevchenko
properties Instead of checking for the specific error codes (that can be considered a layering violation to some extent) check for the property existence first and then either parse it, or apply a default value. With that, return an error when parsing of the existing property fails. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20260513220336.369628-5-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: phy-can-transceiver: Move OF ID table closer to their userAndy Shevchenko
There is no code that uses ID table directly, except the struct device_driver at the end of the file. Hence, move table closer to its user. It's always possible to access them via a pointer. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20260513220336.369628-4-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: phy-can-transceiver: use device_get_match_data()Andy Shevchenko
Use the generic firmware node interface for retrieving device match data instead of the OF-specific one. While at it, drop unneeded argument to devm_phy_create() which extracts device node from the given device by default. Reviewed-by: Josua Mayer <josua@solid-run.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20260513220336.369628-3-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: phy-can-transceiver: Check driver match and driver data against NULLAndy Shevchenko
Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override() so platform drivers that rely on the existence of a device's driver data need to verify its presence. Accordingly, add requisite match and driver data checks against NULL to the driver where they are missing. Fixes: a4a86d273ff1 ("phy: phy-can-transceiver: Add support for generic CAN transceiver driver") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20260513220336.369628-2-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: lynx-28g: add support for 25GBASERIoana Ciornei
Add support for 25GBASE-R in the Lynx 28G SerDes PHY driver. This will be used by the dpaa2-mac consumer on LX2160A with: - phy_validate(phy, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_25GBASER) to detect support. - phy_set_mode_ext(phy, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_25GBASER) to reconfigure the lane for this protocol. The intended use case for dynamic protocol switching to 25GBase-R is with SFP28 modules, and protocol switching is triggered by the SFP module insertion. There also exists a 25GBase-KR use case, where the protocol switching is covered by IEEE 802.3 clause 73 auto-negotiation. However, that is not handled here; it merely needs the support added here as basic ground work. The lane frequency for 25GbE is sourced from a clock net frequency of 12.890625 GHz, as produced by PLLF or PLLS, further multiplied by the lane by 2. The clock net frequencies produced by the PLLs are treated as read-only by the driver, so the absence of a PLL provisioned for the right clock net frequency implies absence of 25GbE support, even though a lane might have the appropriate protocol converter for it. In terms of implementation, the change consists of: - determining at probe time if any PLL was preconfigured for the required clock net frequency for 25GbE - adding the default lane parameters for reconfiguring a lane to 25GbE irrespective of the original protocol - allowing this operating mode only on supported lanes, i.e. all lanes of LX2162A SerDes #1, and LX2160A SerDes lanes 0-1, 4-7. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Tested-by: Josua Mayer <josua@solid-run.com> Link: https://patch.msgid.link/20260511150023.1903577-6-vladimir.oltean@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: lynx-28g: probe on per-SoC and per-instance compatible stringsVladimir Oltean
Add driver support for probing on the new, per-instance and per-SoC bindings, which provide the main benefit that they allow rejecting unsupported protocols per lane (10GbE on SerDes 2 lanes 0-5), but they also allow avoiding the creation of PHYs for lanes that don't exist (LX2162A lanes 0-3). For old device trees with just "fsl,lynx-28g", the only things that change are: - a probe time warning/encouragement to update the device tree. This is warranted by the fact that using "fsl,lynx-28g" may already provide incorrect behaviour (undetected absent 10GbE support on LX2160A SerDes 2 lanes 0-5). But we retain bug compatibility nonetheless. - the feature set is frozen in time (e.g. no 25GbE). Since we cannot guarantee that this protocol will work on a lane, just err on the safe side and don't offer it (and require a device tree update to get it). In terms of code, the lynx_28g_supports_lane_mode() function prototype changes. It was a SerDes-global function and now becomes per lane, to reflect the specific capabilities each instance may have. The implementation goes through priv->info->lane_supports_mode(). Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com> Tested-by: Josua Mayer <josua@solid-run.com> Link: https://patch.msgid.link/20260511150023.1903577-5-vladimir.oltean@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14phy: lynx-28g: require an OF node to probeVladimir Oltean
The driver will gain support for variants in an upcoming change, and will use of_device_get_match_data() to deduce the running variant from the compatible string. Currently, the driver expects the schema at phy/fsl,lynx-28g.yaml, and OF-based consumers, but doesn't enforce this. And it is possible for user space to force-bind the driver to a device without OF node using the driver_override sysfs. To avoid future surprise crashes for an unsupported configuration, explicitly test for the presence of an OF node and fail probing if found. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com> Tested-by: Josua Mayer <josua@solid-run.com> Link: https://patch.msgid.link/20260511150023.1903577-4-vladimir.oltean@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14drm/xe/gt_idle: Use NSEC_PER_MSEC instead of float literalShuicheng Lin
The residency multiplier conversion in get_residency_ms() used the floating-point literal 1e6 as the divisor of mul_u64_u32_div(). While the compiler constant-folds this to an integer, using float literals in kernel code is bad practice since the kernel generally avoids floating-point operations. Replace 1e6 with the standard NSEC_PER_MSEC macro from <linux/time64.h>, which is both self-documenting (ns to ms conversion) and unambiguously integer. Add the corresponding include rather than relying on transitive inclusion. No functional change. Assisted-by: Claude:claude-opus-4.6 Reviewed-by: Nitin Gote <nitin.r.gote@intel.com> Link: https://patch.msgid.link/20260511153307.223435-1-shuicheng.lin@intel.com Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
2026-05-14drm/xe/gsc: Fix double-free of managed BO in error pathShuicheng Lin
The error path in xe_gsc_init_post_hwconfig() explicitly frees a BO allocated with xe_managed_bo_create_pin_map() via xe_bo_unpin_map_no_vm(). Since the managed BO already has a devm cleanup action registered, this causes a double-free when devm unwinds during probe failure. Remove the explicit free and let devm handle it, consistent with all other xe_managed_bo_create_pin_map() callers. Fixes: 2e5d47fe7839 ("drm/xe/uc: Use managed bo for HuC and GSC objects") Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Assisted-by: Claude:claude-opus-4.6 Link: https://patch.msgid.link/20260511154134.223696-1-shuicheng.lin@intel.com Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
2026-05-14soundwire: intel: Move suspend tracking from trigger to pm suspendPeter Ujfalusi
Mark all open DAI runtimes as suspended in the component .suspend callback instead of relying on SNDRV_PCM_TRIGGER_SUSPEND, which is not delivered during PAUSE or xrun states. If during system suspend a dai is open it means that it is in either in SUSPENDED, PAUSED or STOPPED (due to xrun) state and they will need to be re-initialized during resume (which is done in .prepare callback). Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://patch.msgid.link/20260508101755.1247039-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14soundwire: intel_auxdevice: Add es9356 to wake_capable_listZhang Yi
Add es9356 to the wake_capable_list because it can generate jack events whilst the bus is stopped Signed-off-by: Zhang Yi <zhangyi@everest-semi.com> Link: https://patch.msgid.link/20260514075206.3483-7-zhangyi@everest-semi.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-14nvme-apple: Reset q->sq_tail during queue initNick Chan
Fixes a "duplicate tag error for tag 0" firmware crash during controller reset while setting up a queue on Apple A11 / T8015 caused by stale entries in the submission queue due to an invalid sq_tail offset after reset. Fixes: 04d8ecf37b5e ("nvme: apple: Add Apple A11 support") Cc: stable@vger.kernel.org Suggested-by: Yuriy Havrylyuk <yhavry@gmail.com> Reviewed-by: Sven Peter <sven@kernel.org> Signed-off-by: Nick Chan <towinchenmi@gmail.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-05-14ovpn: fix race between deleting interface and adding new peerAntonio Quartulli
While deleting an existing ovpn interface, there is a very narrow window where adding a new peer via netlink may cause the netdevice to hang and prevent its unregistration. It may happen during ovpn_dellink(), when all existing peers are freed and the device is queued for deregistration, but a CMD_PEER_NEW message comes in adding a new peer that takes again a reference to the netdev. At this point there is no way to release the device because we are under the assumption that all peers were already released. Fix the race condition by releasing all peers in ndo_uninit(), when the netdevice has already been removed from the netdev list. Also ovpn_peer_add() has now an extra check that forces the function to bail out if the device reg_state is not REGISTERED. This way any incoming CMD_PEER_NEW racing with the interface deletion routine will simply stop before adding the peer. Note that the above check happens while holding the netdev_lock to prevent racing netdev state changes. ovpn_dellink() is now empty and can be removed. Reported-by: Hyunwoo Kim <imv4bel@gmail.com> Closes: https://lore.kernel.org/netdev/aaVgJ16edTfQkYbx@v4bel/ Suggested-by: Sabrina Dubroca <sd@queasysnail.net> Fixes: 80747caef33d ("ovpn: introduce the ovpn_peer object") Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-05-14ovpn: respect peer refcount in CMD_NEW_PEER error pathDavid Carlier
ovpn_nl_peer_new_doit()'s error path calls ovpn_peer_release() directly rather than ovpn_peer_put(), bypassing the kref. The accompanying comment ("peer was not yet hashed, thus it is not used in any context") holds for UDP but not for TCP. For UDP, the ovpn_socket union uses the .ovpn arm and never points back at a peer; UDP encap_recv looks up peers via the not-yet-populated hashtables, so the new peer is unreachable until ovpn_peer_add() publishes it. For TCP, ovpn_socket_new() sets ovpn_sock->peer and ovpn_tcp_socket_attach() publishes ovpn_sock via rcu_assign_sk_user_data(). From that moment until ovpn_socket_release() detaches in the error path, the TCP fd is fully wired: userspace recvmsg / sendmsg / close / poll on the fd, as well as the strparser-driven ovpn_tcp_rcv() path, can reach the peer through sk_user_data -> ovpn_sock->peer and bump its refcount via ovpn_peer_hold(). ovpn_tcp_socket_wait_finish() (called inside ovpn_socket_release()) drains strparser and the tx work, but does not synchronize with userspace syscall callers that already hold a peer reference. If ovpn_nl_peer_modify() or ovpn_peer_add() returns an error while such a caller is in flight - notably an ovpn_tcp_recvmsg() blocked in __skb_recv_datagram() on peer->tcp.user_queue - the direct ovpn_peer_release() destroys the peer while the caller still holds the reference, and the eventual ovpn_peer_put() from that caller operates on freed memory. Replace the direct destructor call with ovpn_peer_put() so the kref correctly defers destruction until the last reference is dropped. In the common case where no concurrent user is present, behaviour is unchanged: the kref hits zero immediately and ovpn_peer_release_kref() runs the same destructor. With this conversion ovpn_peer_release() has no callers outside peer.c - ovpn_peer_release_kref() in the same translation unit is the only remaining user - so make it static and drop its declaration from peer.h. Fixes: 11851cbd60ea ("ovpn: implement TCP transport") Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Assisted-by: Claude:claude-opus-4-7 Signed-off-by: David Carlier <devnexen@gmail.com> Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-05-14ovpn: tcp - use cached peer pointer in ovpn_tcp_close()David Carlier
ovpn_tcp_close() loads the ovpn_socket via rcu_dereference_sk_user_data() under rcu_read_lock(), takes a reference on sock->peer, caches the peer pointer in a local, and drops the read lock. It then passes sock->peer (rather than the cached local) to ovpn_peer_del(), re-dereferencing the ovpn_socket after the RCU read section has ended. Unlike ovpn_tcp_sendmsg(), which uses the same "load under RCU, use after unlock" pattern but is protected by lock_sock() held across the function, ovpn_tcp_close() runs without the socket lock: inet_release() invokes sk_prot->close() without taking lock_sock first. ovpn_socket_release() can therefore complete its kref_put -> detach -> synchronize_rcu -> kfree(sock) sequence concurrently, in the window after ovpn_tcp_close() drops rcu_read_lock() but before it dereferences sock->peer. The synchronize_rcu() in ovpn_socket_release() protects readers that use the dereferenced pointer inside the RCU read section, not those that escape the pointer to a local and use it afterwards. A reproducer follows the pattern of commit 94560267d6c4 ("ovpn: tcp - don't deref NULL sk_socket member after tcp_close()"): trigger a peer removal (keepalive expiration or netlink OVPN_CMD_DEL_PEER) at the same moment userspace closes the TCP fd. That commit fixed the detach-side of the same race window; this one fixes the close-side at a different victim. Tighten the entry block to read sock->peer exactly once into the cached peer local, and route all subsequent uses (the hold check, the ovpn_peer_del() call, and the prot->close() invocation) through that local. sock->peer is only ever written once in ovpn_socket_new() under lock_sock(), before rcu_assign_sk_user_data() publishes the ovpn_socket, and is never reassigned afterwards - but the previous multi-read pattern made that invariant implicit rather than explicit. The same multi-read shape exists in ovpn_tcp_recvmsg(), ovpn_tcp_sendmsg(), ovpn_tcp_data_ready() and ovpn_tcp_write_space(); those will be cleaned up via a dedicated helper in a follow-up net-next series. Fixes: 11851cbd60ea ("ovpn: implement TCP transport") Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Assisted-by: Claude:claude-opus-4-7 Signed-off-by: David Carlier <devnexen@gmail.com> Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-05-14Bluetooth: hci_qca: Convert timeout from jiffies to msShuai Zhang
Since the timer uses jiffies as its unit rather than ms, the timeout value must be converted from ms to jiffies when configuring the timer. Otherwise, the intended 8s timeout is incorrectly set to approximately 33s. To improve readability, embed msecs_to_jiffies() directly in the macro definitions and drop the _MS suffix from macros that now yield jiffies values: MEMDUMP_TIMEOUT, FW_DOWNLOAD_TIMEOUT, IBS_DISABLE_SSR_TIMEOUT, CMD_TRANS_TIMEOUT, and IBS_BTSOC_TX_IDLE_TIMEOUT. IBS_WAKE_RETRANS_TIMEOUT_MS and IBS_HOST_TX_IDLE_TIMEOUT_MS are intentionally left unchanged. Their values are stored in the struct fields wake_retrans and tx_idle_delay, which hold ms values at runtime and can be modified via debugfs. The msecs_to_jiffies() conversion happens at each call site against the field value, so it cannot be embedded in the macro. Wake timer depends on commit c347ca17d62a Cc: stable@vger.kernel.org Fixes: d841502c79e3 ("Bluetooth: hci_qca: Collect controller memory dump during SSR") Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Shuai Zhang <shuai.zhang@oss.qualcomm.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-14Bluetooth: btmtk: accept too short WMT FUNC_CTRL eventsPauli Virtanen
MT7925 (USB ID 0e8d:e025) on fw version 20260106153314 sends WMT FUNC_CTRL events that are missing the status field. Prior to commit 006b9943b982 ("Bluetooth: btmtk: validate WMT event SKB length before struct access") the status was read from out-of-bounds of SKB data, which usually would result to success with BTMTK_WMT_ON_UNDONE, although I don't know the intent here. The bounds check added in that commit returns with error instead, producing "Bluetooth: hci0: Failed to send wmt func ctrl (-22)" and makes the device unusable. Fix the regression by interpreting too short packet as status BTMTK_WMT_ON_UNDONE, which makes the device work normally again. Fixes: 634a4408c061 ("Bluetooth: btmtk: validate WMT event SKB length before struct access") Signed-off-by: Pauli Virtanen <pav@iki.fi> Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> # MT7922 (0489:e0e2) Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-14cpufreq/amd-pstate: Drop Kconfig option for dynamic EPPMario Limonciello
There are some performance issues being identified by dynamic EPP and we don't want to have distributions turning it on by default exposing them to users at this time. Drop the kconfig option, and require an explicit opt in from kernel command line or runtime sysfs option to turn it on. Reported-by: Viktor Jägersküpper <viktor_jaegerskuepper@freenet.de> Closes: https://lore.kernel.org/linux-pm/14a87c99-785c-4b16-bfce-35ecbf053448@freenet.de/ Reported-by: Stuart Meckle <stuartmeckle@gmail.com> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221473 Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com> Link: https://lore.kernel.org/r/20260512221947.1652988-1-mario.limonciello@amd.com (fix sysfs file path) Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
2026-05-14drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failureThomas Hellström
Apply the same fix as b2ed01e7ad ("drm/ttm: Fix ttm_bo_swapout() infinite LRU walk on swapout failure") to the ttm_bo_shrink() path. Move del_bulk_move from before the backup to after success only, using ttm_resource_del_bulk_move_unevictable() since the resource is now unevictable once fully backed up. Fixes: 70d645deac98 ("drm/ttm: Add helpers for shrinking") Cc: Christian König <christian.koenig@amd.com> Cc: Huang Rui <ray.huang@amd.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Dave Airlie <airlied@redhat.com> Cc: dri-devel@lists.freedesktop.org Cc: stable@vger.kernel.org # v6.15+ Assisted-by: GitHub_Copilot:claude-opus-4.6 Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patch.msgid.link/20260511162443.24352-1-thomas.hellstrom@linux.intel.com Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
2026-05-14net: phy: DP83TC811: add reading of abilitiesSven Schuchmann
At this time the driver is not listing any speeds it supports. This should be ETHTOOL_LINK_MODE_100baseT1_Full_BIT for DP83TC811. Add the missing call for phylib to read the abilities. Fixes: b753a9faaf9a ("net: phy: DP83TC811: Introduce support for the DP83TC811 phy") Suggested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Sven Schuchmann <schuchmann@schleissheimer.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260512071949.6218-1-schuchmann@schleissheimer.de [pabeni@redhat.com: dropped revision history] Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-05-14RAS/AMD/ATL: Drop malformed default N from KconfigAndy Shevchenko
The capital letters are for symbols and N in 'default N' will be evaluated as another, nonexistent, Kconfig symbol, and not as the 'no' it should be. More importantly, 'n' *is* the default already. Hence just drop the malformed line. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://patch.msgid.link/20260513205021.368190-1-andriy.shevchenko@linux.intel.com
2026-05-14clk: scpi: Unregister child clock providers on removeStepan Ionichev
SCPI clock providers are registered for each child node in scpi_clk_add(), but scpi_clocks_remove() unregisters the parent node on each iteration. of_clk_del_provider() matches providers by the node used at registration time, so passing the parent node leaves the child providers registered. This leaks the provider allocations and the node references held by the clock provider core. Pass the child node to of_clk_del_provider() so the remove path matches the probe path. Fixes: cd52c2a4b5c4 ("clk: add support for clocks provided by SCP(System Control Processor)") Signed-off-by: Stepan Ionichev <sozdayvek@gmail.com> Link: https://patch.msgid.link/20260513090900.5323-1-sozdayvek@gmail.com (sudeep.holla: Updated commit title and message a bit) Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
2026-05-14drm/ttm: Convert -EAGAIN from dmem_cgroup_try_charge to -ENOSPCThomas Hellström
dmem_cgroup_try_charge() returns -EAGAIN when the cgroup limit is hit and the charge fails. TTM has no concept of -EAGAIN from resource allocation; -ENOSPC is the canonical error meaning "no space, try eviction". Convert at the source in ttm_resource_alloc() so no caller needs to handle an unexpected error code, and clean up the now-redundant -EAGAIN check in ttm_bo_alloc_resource(). Without this, -EAGAIN escaping ttm_resource_alloc() during an eviction walk causes the walk to terminate early instead of continuing to the next candidate. Cc: Friedrich Vock <friedrich.vock@gmx.de> Cc: Maarten Lankhorst <dev@lankhorst.se> Cc: Tejun Heo <tj@kernel.org> Cc: Maxime Ripard <mripard@kernel.org> Cc: Christian Koenig <christian.koenig@amd.com> Cc: dri-devel@lists.freedesktop.org Cc: <stable@vger.kernel.org> # v6.14+ Fixes: 2b624a2c1865 ("drm/ttm: Handle cgroup based eviction in TTM") Assisted-by: GitHub_Copilot:claude-sonnet-4.6 Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Maarten Lankhorst <dev@lankhrost.se> Link: https://patch.msgid.link/20260508160920.230339-1-thomas.hellstrom@linux.intel.com
2026-05-14arm_mpam: Check whether the config array is allocated before destroying itJames Morse
__destroy_component_cfg() is called to free the configuration array. It uses the embedded 'garbage' structure, which means the array has to be allocated. If __destroy_component_cfg() is called from mpam_disable() before the configuration was ever allocated, then a NULL pointer is dereferenced. Check for this case and return early if the configuration is not allocated. __destroy_component_cfg() also frees the mbwu_state as this is allocated by __allocate_component_cfg(). As the mbwu_state is allocated after comp->cfg is set, and is also under mpam_list_lock, only the first pointer needs checking. Fixes: 3bd04fe7d807 ("arm_mpam: Extend reset logic to allow devices to be reset any time") Cc: <stable@vger.kernel.org> Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Ben Horgan <ben.horgan@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2026-05-14arm_mpam: Fix false positive assert failure during mpam_disable()James Morse
mpam_assert_partid_sizes_fixed() is used to document that the caller doesn't expect the discovered PARTID size to change while it is walking a list sized by PARTID. Typically the MSC state is not written to until all the MSC have been discovered and this value is set. However, if discovering the MSC fails and schedules mpam_disable(), then the MSC state is written to reset it. In this case the discovered PARTID size may be become smaller - but only PARTID 0 will be used once resctrl_exit() has been called. Skip the WARN_ON_ONCE() if mpam_disable_reason has been set. Fixes: 3bd04fe7d807 ("arm_mpam: Extend reset logic to allow devices to be reset any time") Cc: <stable@vger.kernel.org> Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Ben Horgan <ben.horgan@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2026-05-14arm_mpam: Improve check for whether or not NRDY is hardware managedBen Horgan
mpam_ris_hw_probe_csu_nrdy() sets and clears MSMON_CSU.NRDY and checks whether it's configuration sticks. However, hardware isn't given a chance to disagree. Based on rule LRTGP, in MPAM specification IHI0099 version B.b, the hardware will set NRDY if it needs time to establish a count after a configuration change. Enable the monitor so that NRDY becomes relevant and change the configuration after clearing NRDY to try and coax the hardware into setting it. Fixes: 8c90dc68a5de ("arm_mpam: Probe the hardware features resctrl supports") Cc: <stable@vger.kernel.org> Signed-off-by: Ben Horgan <ben.horgan@arm.com> Reviewed-by: James Morse <james.morse@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2026-05-14arm_mpam: Pretend that NRDY is always hardware managedBen Horgan
Rule ZTXDS of the MPAM specification, IHI009 version B.b, states: "If a monitor does not support automatic updates of NRDY, software can use that bit for any purpose." As software is not reliably informed whether or not the monitor supports automatic updates of NRDY always assume that hardware may manage NRDY but don't rely on it. When NRDY is truly untouched by hardware then, as it is written to 0 on configuration, it will always read 0. At probe it's checked if MSMON_CSU.NRDY and MSMON_MBWU.NRDY are hardware managed but not MSMON_MBWU_L.NDRY. Specialize the checking for hardware managed NRDY to CSU counters as this is the only case where hardware management makes sense. Continue to inform the user if MSMON_CSU.NRDY appears to be hardware managed but the firmware doesn't provide the associated time limit for the automatic clearing of NRDY. Remove the NRDY feature flags as they are now unused. Fixes: 8c90dc68a5de ("arm_mpam: Probe the hardware features resctrl supports") Cc: <stable@vger.kernel.org> Signed-off-by: Ben Horgan <ben.horgan@arm.com> Reviewed-by: James Morse <james.morse@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2026-05-14arm_mpam: Fix monitor instance selection when checking for hardware NRDYBen Horgan
In _mpam_ris_hw_probe_hw_nrdy() a new register value to select the first monitor and relevant RIS is prepared in mon_sel. However, it is written to the monitor value register, e.g. MSMON_CSU, rather than MSMON_CFG_MON_SEL. As MSMON_CFG_MON_SEL is a 32 bit register update the type of mon_sel to u32. Write mon_sel to the intended register, MSMON_CFG_MON_SEL. Fixes: 8c90dc68a5de ("arm_mpam: Probe the hardware features resctrl supports") Cc: <stable@vger.kernel.org> Signed-off-by: Ben Horgan <ben.horgan@arm.com> Reviewed-by: James Morse <james.morse@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2026-05-13Input: synaptics - add LEN2058 to SMBus passlist for ThinkPad E490Nicolás Bazaes
The Lenovo ThinkPad E490 (PNP ID: LEN2058) has a Synaptics TM3471-020 touchpad that supports SMBus/RMI4 mode but is not listed in smbus_pnp_ids[]. Without this entry, RMI4 over SMBus is not enabled by default, and the touchpad falls back to PS/2 mode. Adding LEN2058 to the passlist enables automatic RMI4 detection without requiring the psmouse.synaptics_intertouch parameter, and matches the behavior of similar ThinkPad models already in the list (E480/LEN2054, E580/LEN2055). Tested on ThinkPad E490 with kernel 7.0.5-zen1 and Arch Linux. RMI4 over SMBus is confirmed working without any kernel parameters. Signed-off-by: Nicolás Bazaes <contacto@bazaes.cl> Assisted-by: Claude:claude-sonnet-4-6 Link: https://patch.msgid.link/20260514013552.14234-1-contacto@bazaes.cl Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-05-13net/mlx5e: increase RSS indirection table spread factorYael Chemla
Increase the RQT uniform spread factor from 2 to 4 so that each channel gets more indirection table entries and traffic is spread more evenly. For num_channels > 64 imbalance drops from up to ~50% to up to ~25%. For 64 or fewer channels the 256 entry minimum already provides at least 4x coverage and the table size is unchanged by this commit. This satisfies the minimum 4x coverage requirement validated by the generic RSS selftest commit 9e3d4dae9832 ("selftests: drv-net: rss: validate min RSS table size"). The 4x spread factor is best-effort and the table size is always capped by the device's log_max_rqt_size capability. Signed-off-by: Yael Chemla <ychemla@nvidia.com> Reviewed-by: Nimrod Oren <noren@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260511172719.330490-6-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-13net/mlx5e: resize configured default RSS context table on channel changeYael Chemla
mlx5e_ethtool_set_channels() rejected channel count changes that required a different RQT size when the default context indirection table was user-configured. This restriction was introduced by commit ee3572409f74 ("net/mlx5e: RSS, Block changing channels number when RXFH is configured"). Lift the restriction. Validate the resize upfront with ethtool_rxfh_indir_can_resize(), then fold or unfold the table in-place via ethtool_rxfh_indir_resize() inside state_lock, before mlx5e_safe_switch_params(), so the preactivate callback sees the correct table content when it programs the HW. Signed-off-by: Yael Chemla <ychemla@nvidia.com> Reviewed-by: Nimrod Oren <noren@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260511172719.330490-5-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-13net/mlx5e: resize non-default RSS indirection tables on channel changeYael Chemla
When the channel count changes and the RQT size changes with it, a problem arise for non-default RSS contexts. The driver-side indirection table grows actual_table_size without filling the new entries; stale entries from a prior larger configuration may be re-exposed, causing mlx5e_calc_indir_rqns() to WARN on an out-of-range index. Replace mlx5e_rss_params_indir_modify_actual_size() with mlx5e_rss_ctx_resize(), which fills new entries by replicating the existing pattern, matching what ethtool_rxfh_ctxs_resize() does for the same case. And restrict the loop to non-default contexts. Call ethtool_rxfh_ctxs_can_resize() before acquiring state_lock to validate that all non-default contexts can be resized, and ethtool_rxfh_ctxs_resize() after releasing it to fold or unfold their indirection tables. Both functions acquire rss_lock internally and cannot be called under state_lock. RTNL, held by all set_channels callers, serialises context creation and deletion making the pre-lock check safe. Guard both ethtool calls on mlx5e_rx_res_rss_cnt() > 1: skip the validation and resize when no non-default contexts exist. This naturally covers representors and IPoIB, which share mlx5e_ethtool_set_channels() but cannot have non-default RSS contexts. Signed-off-by: Yael Chemla <ychemla@nvidia.com> Reviewed-by: Nimrod Oren <noren@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260511172719.330490-4-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-13net/mlx5e: advertise max RSS indirection table size to ethtoolYael Chemla
Set rxfh_indir_space to the maximum indirection table size the driver can support: the next power of two above MLX5E_MAX_NUM_CHANNELS times MLX5E_UNIFORM_SPREAD_RQT_FACTOR. Without this, ethtool_rxfh_ctxs_can_resize() returns -EINVAL, blocking non-default RSS contexts from tracking indirection table size changes when the channel count changes. Signed-off-by: Yael Chemla <ychemla@nvidia.com> Reviewed-by: Nimrod Oren <noren@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260511172719.330490-3-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-13net/mlx5e: remove channel count limit for XOR8 RSS hashYael Chemla
mlx5e_ethtool_set_channels() and mlx5e_rxfh_hfunc_check() rejected channel counts that would produce an indirection table larger than 256 entries when the XOR8 hash function was active. This check was introduced in commit 49e6c9387051 ("net/mlx5e: RSS, Block XOR hash with over 128 channels"). XOR8 yields an 8-bit hash, so in practice only up to 256 entries in the indirection table can be reached due to limited entropy. However, this does not provide a strong justification for prohibiting larger indirection tables. Remove the limitation. Signed-off-by: Yael Chemla <ychemla@nvidia.com> Reviewed-by: Nimrod Oren <noren@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260511172719.330490-2-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-14Merge tag 'amd-drm-fixes-7.1-2026-05-13' of ↵Dave Airlie
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-7.1-2026-05-13: amdgpu: - Userq fixes - DCN 3.2 fix - RAS fix - GC 12 fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patch.msgid.link/20260513224053.40670-1-alexander.deucher@amd.com
2026-05-13macsec: use rcu_work to defer TX SA crypto cleanup out of softirqJinliang Zheng
free_txsa() is an RCU callback running in softirq context, but calls crypto_free_aead() which can invoke vunmap() internally on hardware crypto drivers (e.g. hisi_sec2), triggering a kernel crash. Use rcu_work to defer the cleanup to a workqueue, for the same reasons as the analogous fix to free_rxsa() in the previous patch. Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver") Signed-off-by: Jinliang Zheng <alexjlzheng@tencent.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Link: https://patch.msgid.link/20260511153102.2640368-4-alexjlzheng@tencent.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-13macsec: use rcu_work to defer RX SA crypto cleanup out of softirqJinliang Zheng
crypto_free_aead() can internally invoke vunmap() (e.g. via dma_free_attrs() in hardware crypto drivers such as hisi_sec2). vunmap() must not be called from softirq context, but free_rxsa() is an RCU callback that runs in softirq, leading to a kernel crash: vunmap+0x4c/0x70 __iommu_dma_free+0xd0/0x138 dma_free_attrs+0xf4/0x100 sec_aead_exit+0x64/0xb8 [hisi_sec2] crypto_destroy_tfm+0x98/0x110 free_rxsa+0x28/0x50 [macsec] rcu_do_batch+0x184/0x460 rcu_core+0xf4/0x1f8 handle_softirqs+0x118/0x330 Use rcu_work to defer the cleanup to a workqueue. rcu_work dispatches the worker asynchronously after the RCU grace period, so no thread blocks waiting, and concurrent releases of multiple SAs naturally share the same grace period. Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver") Signed-off-by: Jinliang Zheng <alexjlzheng@tencent.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Link: https://patch.msgid.link/20260511153102.2640368-3-alexjlzheng@tencent.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-13macsec: introduce dedicated workqueue for SA crypto cleanupJinliang Zheng
Introduce a dedicated ordered workqueue, macsec_wq, which will be used by subsequent patches to defer SA crypto cleanup (crypto_free_aead and related teardown) out of softirq context. Using a dedicated workqueue instead of system_wq allows macsec_exit() to drain exactly the work items belonging to this module via destroy_workqueue(), without interfering with unrelated work items on system_wq or causing unexpected delays elsewhere. rcu_barrier() in macsec_exit() ensures all in-flight rcu_work callbacks have enqueued their work items before destroy_workqueue() drains and destroys the queue, making the two-step teardown correct and complete. The same sequence is kept in the error path of macsec_init() as a precaution, to mirror macsec_exit() and stay safe if work ever becomes queueable before this point in the future. While at it, rename the error labels in macsec_init() from the resource-named style (rtnl:, notifier:, wq:) to the err_xxx: style (err_rtnl:, err_notifier:, err_destroy_wq:) to align with the broader kernel convention. Signed-off-by: Jinliang Zheng <alexjlzheng@tencent.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Link: https://patch.msgid.link/20260511153102.2640368-2-alexjlzheng@tencent.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>