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2025-11-20Documentation: reset: Remove reset_controller_add_lookup()Yue Haibing
Commit 205b261463ff ("reset: remove legacy reset lookup code") removed this api, so update the document. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2025-11-20ALSA: hda/realtek - Enable Mute LED and Tas2781 for HP platformKailang Yang
Enable SPK Mute Led and Mic Mute Led for HP platform. It was also integrated with Tas2781 supported. Signed-off-by: Kailang Yang <kailang@realtek.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-11-20Merge branch 'for-linus' into for-nextTakashi Iwai
Pull 6.18-devel branch for applying the further HD-audio fixups for HP. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-11-20Merge tag 'rtw-2025-11-20' of https://github.com/pkshih/rtwJohannes Berg
Ping-Ke Shih says: ================== rtw patches for v6.18-rc7 Fix firmware goes wrong and causes device unusable after scanning. This issue presents under certain regulatory domain reported from end users. ================== Link: https://patch.msgid.link/8217bee0-96c4-44c1-9593-2e9ca12eccc5@RTKEXHMBS03.realtek.com.tw Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-20gpiolib: acpi: use min() instead of min_t()David Laight
min_t(u16, a, b) casts an 'unsigned long' to 'u16'. Use min(a, b) instead as it promotes the both values to int and so cannot discard significant bits. In this case the values should be ok. Detected by an extra check added to min_t(). Signed-off-by: David Laight <david.laight.linux@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-11-20LoongArch: BPF: Disable trampoline for kernel module function traceVincent Li
The current LoongArch BPF trampoline implementation is incompatible with tracing functions in kernel modules. This causes several severe and user-visible problems: * The `bpf_selftests/module_attach` test fails consistently. * Kernel lockup when a BPF program is attached to a module function [1]. * Critical kernel modules like WireGuard experience traffic disruption when their functions are traced with fentry [2]. Given the severity and the potential for other unknown side-effects, it is safest to disable the feature entirely for now. This patch prevents the BPF subsystem from allowing trampoline attachments to kernel module functions on LoongArch. This is a temporary mitigation until the core issues in the trampoline code for kernel module handling can be identified and fixed. [root@fedora bpf]# ./test_progs -a module_attach -v bpf_testmod.ko is already unloaded. Loading bpf_testmod.ko... Successfully loaded bpf_testmod.ko. test_module_attach:PASS:skel_open 0 nsec test_module_attach:PASS:set_attach_target 0 nsec test_module_attach:PASS:set_attach_target_explicit 0 nsec test_module_attach:PASS:skel_load 0 nsec libbpf: prog 'handle_fentry': failed to attach: -ENOTSUPP libbpf: prog 'handle_fentry': failed to auto-attach: -ENOTSUPP test_module_attach:FAIL:skel_attach skeleton attach failed: -524 Summary: 0/0 PASSED, 0 SKIPPED, 1 FAILED Successfully unloaded bpf_testmod.ko. [1]: https://lore.kernel.org/loongarch/CAK3+h2wDmpC-hP4u4pJY8T-yfKyk4yRzpu2LMO+C13FMT58oqQ@mail.gmail.com/ [2]: https://lore.kernel.org/loongarch/CAK3+h2wYcpc+OwdLDUBvg2rF9rvvyc5amfHT-KcFaK93uoELPg@mail.gmail.com/ Cc: stable@vger.kernel.org Fixes: f9b6b41f0cf3 ("LoongArch: BPF: Add basic bpf trampoline support") Acked-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Vincent Li <vincent.mc.li@gmail.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2025-11-20LoongArch: Don't panic if no valid cache info for PCIHuacai Chen
If there is no valid cache info detected (may happen in virtual machine) for pci_dfl_cache_line_size, kernel shouldn't panic. Because in the PCI core it will be evaluated to (L1_CACHE_BYTES >> 2). Cc: <stable@vger.kernel.org> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2025-11-20LoongArch: Mask all interrupts during kexec/kdumpHuacai Chen
If the default state of the interrupt controllers in the first kernel don't mask any interrupts, it may cause the second kernel to potentially receive interrupts (which were previously allocated by the first kernel) immediately after a CPU becomes online during its boot process. These interrupts cannot be properly routed, leading to bad IRQ issues. This patch calls machine_kexec_mask_interrupts() to mask all interrupts during the kexec/kdump process. Signed-off-by: Tianyang Zhang <zhangtianyang@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2025-11-20LoongArch: Fix NUMA node parsing with numa_memblksBibo Mao
On physical machine, NUMA node id comes from high bit 44:48 of physical address. However it is not true on virt machine. With general method, it comes from ACPI SRAT table. Here the common function numa_memblks_init() is used to parse NUMA node information with numa_memblks. Cc: <stable@vger.kernel.org> Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2025-11-20LoongArch: Consolidate CPU names in /proc/cpuinfoHuacai Chen
Some processors have no IOCSR.VENDOR and IOCSR.CPUNAME, some processors have these registers but there is no valid information. Consolidate CPU names in /proc/cpuinfo: 1. Add "PRID" to display the PRID & Core-Name; 2. Let "Model Name" display "Unknown" if no valid name. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2025-11-20LoongArch: Use UAPI types in ptrace UAPI headerThomas Weißschuh
The kernel UAPI headers already contain fixed-width integer types, there is no need to rely on the libc types. There may not be a libc available or the libc may not provides the <stdint.h>, like for example on nolibc. This also aligns the header with the rest of the LoongArch UAPI headers. Fixes: 803b0fc5c3f2 ("LoongArch: Add process management") Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2025-11-20bus: mhi: host: pci_generic: Add Foxconn T99W760 modemSlark Xiao
T99W760 modem is based on Qualcomm SDX35 chipset. It uses the same channel configurations of Foxconn SDX61 modem. Hence, add support for it by reusing the 'modem_foxconn_sdx61_config' config structure. The EDL firmware for this modem has been pushed to linux-firmware. Signed-off-by: Slark Xiao <slark_xiao@163.com> [mani: reworded description] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> Link: https://patch.msgid.link/20251119105615.48295-2-slark_xiao@163.com
2025-11-19Merge branch 'net-mlx5-move-notifiers-outside-the-devlink-lock'Jakub Kicinski
Tariq Toukan says: ==================== net/mlx5: Move notifiers outside the devlink lock This series by Cosmin moves blocking notifier registration in the mlx5 driver outside the devlink lock during probe. This is mostly a no-op refactoring that consists of multiple pieces. It is necessary because upcoming code will introduce a potential locking cycle between the devlink lock and the blocking notifier head mutexes, so these notifiers must move out of the devlink-locked critical section. ==================== Link: https://patch.msgid.link/1763325940-1231508-1-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net/mlx5: Move SF dev table notifier registration outside the PF devlink lockCosmin Ratiu
This completes the previous patches by moving notifier registration for SF dev tables outside the devlink locked critical section in mlx5_init_one() / mlx5_uninit_one() and into the mlx5_mdev_init() / mlx5_mdev_uninit() functions. This is only done for non-SFs, since SFs do not have a SF HW table themselves. After this patch, notifiers can grab the PF devlink lock (soon to be necessary) without creating a locking cycle. Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1763325940-1231508-7-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net/mlx5: Move the SF table notifiers outside the devlink lockCosmin Ratiu
Move the SF table notifiers registration/unregistration outside of mlx5_init_one() / mlx5_uninit_one() and into the mlx5_mdev_init() / mlx5_mdev_uninit() functions. This is only done for non-SFs, since SFs do not have a SF table themselves and thus don't need notifiers. Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1763325940-1231508-6-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net/mlx5: Move the SF HW table notifier outside the devlink lockCosmin Ratiu
Move the SF HW table notifier registration/unregistration outside of mlx5_init_one() / mlx5_uninit_one() and into the mlx5_mdev_init() / mlx5_mdev_uninit() functions. This is only done for non-SFs, since SFs do not have a SF HW table themselves. Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1763325940-1231508-5-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net/mlx5: Move the vhca event notifier outside of the devlink lockCosmin Ratiu
The vhca event notifier consists of an atomic notifier for vhca state changes (used for SF events), multiple workqueues and a blocking notifier chain for delivering the vhca state change events for further processing. This patch moves the vhca notifier head outside of mlx5_init_one() / mlx5_uninit_one() and into the mlx5_mdev_init() / mlx5_mdev_uninit() functions. This allows called notifiers to grab the PF devlink lock which was previously impossible because it would create a circular lock dependency. mlx5_vhca_event_stop() is now called earlier in the cleanup phase and flushes the workqueues to ensure that after the call, there are no pending events. This simplifies the cleanup flow for vhca event consumers. Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1763325940-1231508-4-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net/mlx5: Move the esw mode notifier chain outside the devlink lockCosmin Ratiu
The esw mode change notifier chain is initialized/cleaned up in mlx5_init_one() / mlx5_uninit_one() with the devlink lock held. Move the notifier head from the eswitch struct into mlx5_priv directly, and initialize it outside the critical section. This will allow notifier registration to happen earlier in the init procedure in subsequent patches. Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1763325940-1231508-3-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net/mlx5: Initialize events outside devlink lockCosmin Ratiu
Move event init/cleanup outside of mlx5_init_one() / mlx5_uninit_one() and into the mlx5_mdev_init() / mlx5_mdev_uninit() functions. By doing this, we avoid the events being reinitialized on devlink reload and, more importantly, the events->sw_nh notifier chain becomes available earlier in the init procedure, which will be used in subsequent patches. This makes sense because the events struct is pure software, independent of any HW details. Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1763325940-1231508-2-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19Merge branch 'net-adjust-conservative-values-around-napi'Jakub Kicinski
Jason Xing says: ==================== net: adjust conservative values around napi This series keeps at least 96 skbs per cpu and frees 32 skbs at one time in conclusion. More initial discussions with Eric can be seen at the link [1]. [1]: https://lore.kernel.org/all/CAL+tcoBEEjO=-yvE7ZJ4sB2smVBzUht1gJN85CenJhOKV==================== Link: https://patch.msgid.link/20251118070646.61344-1-kerneljasonxing@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: prefetch the next skb in napi_skb_cache_get()Jason Xing
After getting the current skb in napi_skb_cache_get(), the next skb in cache is highly likely to be used soon, so prefetch would be helpful. Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jason Xing <kernelxing@tencent.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com> Link: https://patch.msgid.link/20251118070646.61344-5-kerneljasonxing@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: use NAPI_SKB_CACHE_FREE to keep 32 as default to do bulk freeJason Xing
- Replace NAPI_SKB_CACHE_HALF with NAPI_SKB_CACHE_FREE - Only free 32 skbs in napi_skb_cache_put() Since the first patch adjusting NAPI_SKB_CACHE_SIZE to 128, the number of packets to be freed in the softirq was increased from 32 to 64. Considering a subsequent net_rx_action() calling napi_poll() a few times can easily consume the 64 available slots and we can afford keeping a higher value of sk_buffs in per-cpu storage, decrease NAPI_SKB_CACHE_FREE to 32 like before. So now the logic is 1) keeping 96 skbs, 2) freeing 32 skbs at one time. Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jason Xing <kernelxing@tencent.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com> Link: https://patch.msgid.link/20251118070646.61344-4-kerneljasonxing@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: increase default NAPI_SKB_CACHE_BULK to 32Jason Xing
The previous value 16 is a bit conservative, so adjust it along with NAPI_SKB_CACHE_SIZE, which can minimize triggering memory allocation in napi_skb_cache_get*(). Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jason Xing <kernelxing@tencent.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com> Link: https://patch.msgid.link/20251118070646.61344-3-kerneljasonxing@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: increase default NAPI_SKB_CACHE_SIZE to 128Jason Xing
After commit b61785852ed0 ("net: increase skb_defer_max default to 128") changed the value sysctl_skb_defer_max to avoid many calls to kick_defer_list_purge(), the same situation can be applied to NAPI_SKB_CACHE_SIZE that was proposed in 2016. It's a trade-off between using pre-allocated memory in skb_cache and saving more a bit heavy function calls in the softirq context. With this patch applied, we can have more skbs per-cpu to accelerate the sending path that needs to acquire new skbs. Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jason Xing <kernelxing@tencent.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com> Link: https://patch.msgid.link/20251118070646.61344-2-kerneljasonxing@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19Merge branch 'disable-clkout-on-rtl8211f-d-i-vd-cg'Jakub Kicinski
Vladimir Oltean says: ==================== Disable CLKOUT on RTL8211F(D)(I)-VD-CG The Realtek RTL8211F(D)(I)-VD-CG is similar to other RTL8211F models in that the CLKOUT signal can be turned off - a feature requested to reduce EMI, and implemented via "realtek,clkout-disable" as documented in Documentation/devicetree/bindings/net/realtek,rtl82xx.yaml. It is also dissimilar to said PHY models because it has no PHYCR2 register, and disabling CLKOUT is done through some other register. The strategy adopted in this 6-patch series is to make the PHY driver not think in terms of "priv->has_phycr2" and "priv->phycr2", but of more high-level features ("priv->disable_clk_out") while maintaining behaviour. Then, the logic is extended for the new PHY. Very loosely based on previous work from Clark Wang, who took a different approach, to pretend that the RTL8211FVD_CLKOUT_REG is actually this PHY's PHYCR2. ==================== Link: https://patch.msgid.link/20251117234033.345679-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: phy: realtek: create rtl8211f_config_phy_eee() helperVladimir Oltean
To simplify the rtl8211f_config_init() control flow and get rid of "early" returns for PHYs where the PHYCR2 register is absent, move the entire logic sub-block that deals with disabling PHY-mode EEE to a separate function. There, it is much more obvious what the early "return 0" skips, and it becomes more difficult to accidentally skip unintended stuff. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://patch.msgid.link/20251117234033.345679-7-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: phy: realtek: eliminate priv->phycr1 variableVladimir Oltean
Previous changes have replaced the machine-level priv->phycr2 with a high-level priv->disable_clk_out. This created a discrepancy with priv->phycr1 which is resolved here, for uniformity. One advantage of this new implementation is that we don't read priv->phycr1 in rtl821x_probe() if we're never going to modify it. We never test the positive return code from phy_modify_mmd_changed(), so we could just as well use phy_modify_mmd(). I took the ALDPS feature description from commit d90db36a9e74 ("net: phy: realtek: add dt property to enable ALDPS mode") and transformed it into a function comment - the feature is sufficiently non-obvious to deserve that. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20251117234033.345679-6-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: phy: realtek: allow CLKOUT to be disabled on RTL8211F(D)(I)-VD-CGVladimir Oltean
Add CLKOUT disable support for RTL8211F(D)(I)-VD-CG. Like with other PHY variants, this feature might be requested by customers when the clock output is not used, in order to reduce electromagnetic interference (EMI). In the common driver, the CLKOUT configuration is done through PHYCR2. The RTL_8211FVD_PHYID is singled out as not having that register, and execution in rtl8211f_config_init() returns early after commit 2c67301584f2 ("net: phy: realtek: Avoid PHYCR2 access if PHYCR2 not present"). But actually CLKOUT is configured through a different register for this PHY. Instead of pretending this is PHYCR2 (which it is not), just add some code for modifying this register inside the rtl8211f_disable_clk_out() function, and move that outside the code portion that runs only if PHYCR2 exists. In practice this reorders the PHYCR2 writes to disable PHY-mode EEE and to disable the CLKOUT for the normal RTL8211F variants, but this should be perfectly fine. It was not noted that RTL8211F(D)(I)-VD-CG would need a genphy_soft_reset() call after disabling the CLKOUT. Despite that, we do it out of caution and for symmetry with the other RTL8211F models. Co-developed-by: Clark Wang <xiaoning.wang@nxp.com> Signed-off-by: Clark Wang <xiaoning.wang@nxp.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20251117234033.345679-5-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: phy: realtek: eliminate has_phycr2 variableVladimir Oltean
This variable is assigned in rtl821x_probe() and used in rtl8211f_config_init(), which is more complex than it needs to be. Simply testing the same condition from rtl821x_probe() in rtl8211f_config_init() yields the same result (the PHY driver ID is a runtime invariant), but with one temporary variable less. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20251117234033.345679-4-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: phy: realtek: eliminate priv->phycr2 variableVladimir Oltean
The RTL8211F(D)(I)-VD-CG PHY also has support for disabling the CLKOUT, and we'd like to introduce the "realtek,clkout-disable" property for that. But it isn't done through the PHYCR2 register, and it becomes awkward to have the driver pretend that it is. So just replace the machine-level "u16 phycr2" variable with a logical "bool disable_clk_out", which scales better to the other PHY as well. The change is a complete functional equivalent. Before, if the device tree property was absent, priv->phycr2 would contain the RTL8211F_CLKOUT_EN bit as read from hardware. Now, we don't save priv->phycr2, but we just don't call phy_modify_paged() on it. Also, we can simply call phy_modify_paged() with the "set" argument to 0. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://patch.msgid.link/20251117234033.345679-3-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: phy: realtek: create rtl8211f_config_rgmii_delay()Vladimir Oltean
The control flow in rtl8211f_config_init() has some pitfalls which were probably unintended. Specifically it has an early return: switch (phydev->interface) { ... default: /* the rest of the modes imply leaving delay as is. */ return 0; } which exits the entire config_init() function. This means it also skips doing things such as disabling CLKOUT or disabling PHY-mode EEE. For the RTL8211FS, which uses PHY_INTERFACE_MODE_SGMII, this might be a problem. However, I don't know that it is, so there is no Fixes: tag. The issue was observed through code inspection. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20251117234033.345679-2-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: vmxnet3: convert to use .get_rx_ring_countBreno Leitao
Convert the vmxnet3 driver to use the new .get_rx_ring_count ethtool operation instead of implementing .get_rxnfc solely for handling ETHTOOL_GRXRINGS command. This simplifies the code by removing the switch statement and replacing it with a direct return of the queue count. The new callback provides the same functionality in a more direct way, following the ongoing ethtool API modernization. Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20251118-vmxnet3_grxrings-v1-1-ed8abddd2d52@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19Merge branch 'net-mana-enforce-tx-sge-limit-and-fix-error-cleanup'Jakub Kicinski
Aditya Garg says: ==================== net: mana: Enforce TX SGE limit and fix error cleanup Add pre-transmission checks to block SKBs that exceed the hardware's SGE limit. Force software segmentation for GSO traffic and linearize non-GSO packets as needed. Update TX error handling to drop failed SKBs and unmap resources immediately. ==================== Link: https://patch.msgid.link/1763464269-10431-1-git-send-email-gargaditya@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: mana: Drop TX skb on post_work_request failure and unmap resourcesAditya Garg
Drop TX packets when posting the work request fails and ensure DMA mappings are always cleaned up. Signed-off-by: Aditya Garg <gargaditya@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1763464269-10431-3-git-send-email-gargaditya@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: mana: Handle SKB if TX SGEs exceed hardware limitAditya Garg
The MANA hardware supports a maximum of 30 scatter-gather entries (SGEs) per TX WQE. Exceeding this limit can cause TX failures. Add ndo_features_check() callback to validate SKB layout before transmission. For GSO SKBs that would exceed the hardware SGE limit, clear NETIF_F_GSO_MASK to enforce software segmentation in the stack. Add a fallback in mana_start_xmit() to linearize non-GSO SKBs that still exceed the SGE limit. Also, Add ethtool counter for SKBs linearized Co-developed-by: Dipayaan Roy <dipayanroy@linux.microsoft.com> Signed-off-by: Dipayaan Roy <dipayanroy@linux.microsoft.com> Signed-off-by: Aditya Garg <gargaditya@linux.microsoft.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1763464269-10431-2-git-send-email-gargaditya@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19Merge branch '200GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2025-11-18 (idpf, ice) This series contains updates to idpf and ice drivers. Emil adds a check for NULL vport_config during removal to avoid NULL pointer dereference in idpf. Grzegorz fixes PTP teardown paths to account for some missed cleanups for ice driver. * '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: ice: fix PTP cleanup on driver removal in error path idpf: fix possible vport_config NULL pointer deref in remove ==================== Link: https://patch.msgid.link/20251118235207.2165495-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19Merge branch 'mptcp-misc-fixes-for-v6-18-rc7'Jakub Kicinski
Matthieu Baerts says: ==================== mptcp: misc fixes for v6.18-rc7 Here are various unrelated fixes: - Patch 1: Fix window space computation for fallback connections which can affect ACK generation. A fix for v5.11. - Patch 2: Avoid unneeded subflow-level drops due to unsynced received window. A fix for v5.11. - Patch 3: Avoid premature close for fallback connections with PREEMPT kernels. A fix for v5.12. - Patch 4: Reset instead of fallback in case of data in the MPTCP out-of-order queue. A fix for v5.7. - Patches 5-7: Avoid also sending "plain" TCP reset when closing with an MP_FASTCLOSE. A fix for v6.1. - Patches 8-9: Longer timeout for background connections in MPTCP Join selftests. An additional fix for recent patches for v5.13/v6.1. - Patches 10-11: Fix typo in a check introduce in a recent refactoring. A fix for v6.15. ==================== Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-0-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19selftests: mptcp: add a check for 'add_addr_accepted'Gang Yan
The previous patch fixed an issue with the 'add_addr_accepted' counter. This was not spot by the test suite. Check this counter and 'add_addr_signal' in MPTCP Join 'delete re-add signal' test. This should help spotting similar regressions later on. These counters are crucial for ensuring the MPTCP path manager correctly handles the subflow creation via 'ADD_ADDR'. Signed-off-by: Gang Yan <yangang@kylinos.cn> Reviewed-by: Geliang Tang <geliang@kernel.org> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-11-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19mptcp: fix address removal logic in mptcp_pm_nl_rm_addrGang Yan
Fix inverted WARN_ON_ONCE condition that prevented normal address removal counter updates. The current code only executes decrement logic when the counter is already 0 (abnormal state), while normal removals (counter > 0) are ignored. Signed-off-by: Gang Yan <yangang@kylinos.cn> Fixes: 636113918508 ("mptcp: pm: remove '_nl' from mptcp_pm_nl_rm_addr_received") Cc: stable@vger.kernel.org Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-10-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19selftests: mptcp: join: userspace: longer timeoutMatthieu Baerts (NGI0)
In rare cases, when the test environment is very slow, some userspace tests can fail because some expected events have not been seen. Because the tests are expecting a long on-going connection, and they are not waiting for the end of the transfer, it is fine to have a longer timeout, and even go over the default one. This connection will be killed at the end, after the verifications: increasing the timeout doesn't change anything, apart from avoiding it to end before the end of the verifications. To play it safe, all userspace tests not waiting for the end of the transfer are now having a longer timeout: 2 minutes. The Fixes commit was making the connection longer, but still, the default timeout would have stopped it after 1 minute, which might not be enough in very slow environments. Fixes: 290493078b96 ("selftests: mptcp: join: userspace: longer transfer") Cc: stable@vger.kernel.org Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Geliang Tang <geliang@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-9-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19selftests: mptcp: join: endpoints: longer timeoutMatthieu Baerts (NGI0)
In rare cases, when the test environment is very slow, some endpoints tests can fail because some expected events have not been seen. Because the tests are expecting a long on-going connection, and they are not waiting for the end of the transfer, it is fine to have a longer timeout, and even go over the default one. This connection will be killed at the end, after the verifications: increasing the timeout doesn't change anything, apart from avoiding it to end before the end of the verifications. To play it safe, all endpoints tests not waiting for the end of the transfer are now having a longer timeout: 2 minutes. The Fixes commit was making the connection longer, but still, the default timeout would have stopped it after 1 minute, which might not be enough in very slow environments. Fixes: 6457595db987 ("selftests: mptcp: join: endpoints: longer transfer") Cc: stable@vger.kernel.org Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Geliang Tang <geliang@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-8-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19selftests: mptcp: join: fastclose: remove flaky marksMatthieu Baerts (NGI0)
After recent fixes like the parent commit, and "selftests: mptcp: connect: trunc: read all recv data", the two fastclose subtests no longer look flaky any more. It then feels fine to remove these flaky marks, to no longer ignore these subtests in case of errors. Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-7-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19mptcp: fix duplicate reset on fastclosePaolo Abeni
The CI reports sporadic failures of the fastclose self-tests. The root cause is a duplicate reset, not carrying the relevant MPTCP option. In the failing scenario the bad reset is received by the peer before the fastclose one, preventing the reception of the latter. Indeed there is window of opportunity at fastclose time for the following race: mptcp_do_fastclose __mptcp_close_ssk __tcp_close() tcp_set_state() [1] tcp_send_active_reset() [2] After [1] the stack will send reset to in-flight data reaching the now closed port. Such reset may race with [2]. Address the issue explicitly sending a single reset on fastclose before explicitly moving the subflow to close status. Fixes: d21f83485518 ("mptcp: use fastclose on more edge scenarios") Cc: stable@vger.kernel.org Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/596 Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Geliang Tang <geliang@kernel.org> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-6-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19mptcp: decouple mptcp fastclose from tcp closePaolo Abeni
With the current fastclose implementation, the mptcp_do_fastclose() helper is in charge of two distinct actions: send the fastclose reset and cleanup the subflows. Formally decouple the two steps, ensuring that mptcp explicitly closes all the subflows after the mentioned helper. This will make the upcoming fix simpler, and allows dropping the 2nd argument from mptcp_destroy_common(). The Fixes tag is then the same as in the next commit to help with the backports. Fixes: d21f83485518 ("mptcp: use fastclose on more edge scenarios") Cc: stable@vger.kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Geliang Tang <geliang@kernel.org> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-5-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19mptcp: do not fallback when OoO is presentPaolo Abeni
In case of DSS corruption, the MPTCP protocol tries to avoid the subflow reset if fallback is possible. Such corruptions happen in the receive path; to ensure fallback is possible the stack additionally needs to check for OoO data, otherwise the fallback will break the data stream. Fixes: e32d262c89e2 ("mptcp: handle consistently DSS corruption") Cc: stable@vger.kernel.org Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/598 Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-4-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19mptcp: fix premature close in case of fallbackPaolo Abeni
I'm observing very frequent self-tests failures in case of fallback when running on a CONFIG_PREEMPT kernel. The root cause is that subflow_sched_work_if_closed() closes any subflow as soon as it is half-closed and has no incoming data pending. That works well for regular subflows - MPTCP needs bi-directional connectivity to operate on a given subflow - but for fallback socket is race prone. When TCP peer closes the connection before the MPTCP one, subflow_sched_work_if_closed() will schedule the MPTCP worker to gracefully close the subflow, and shortly after will do another schedule to inject and process a dummy incoming DATA_FIN. On CONFIG_PREEMPT kernel, the MPTCP worker can kick-in and close the fallback subflow before subflow_sched_work_if_closed() is able to create the dummy DATA_FIN, unexpectedly interrupting the transfer. Address the issue explicitly avoiding closing fallback subflows on when the peer is only half-closed. Note that, when the subflow is able to create the DATA_FIN before the worker invocation, the worker will change the msk state before trying to close the subflow and will skip the latter operation as the msk will not match anymore the precondition in __mptcp_close_subflow(). Fixes: f09b0ad55a11 ("mptcp: close subflow when receiving TCP+FIN") Cc: stable@vger.kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-3-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19mptcp: avoid unneeded subflow-level dropsPaolo Abeni
The rcv window is shared among all the subflows. Currently, MPTCP sync the TCP-level rcv window with the MPTCP one at tcp_transmit_skb() time. The above means that incoming data may sporadically observe outdated TCP-level rcv window and being wrongly dropped by TCP. Address the issue checking for the edge condition before queuing the data at TCP level, and eventually syncing the rcv window as needed. Note that the issue is actually present from the very first MPTCP implementation, but backports older than the blamed commit below will range from impossible to useless. Before: $ nstat -n; sleep 1; nstat -z TcpExtBeyondWindow TcpExtBeyondWindow 14 0.0 After: $ nstat -n; sleep 1; nstat -z TcpExtBeyondWindow TcpExtBeyondWindow 0 0.0 Fixes: fa3fe2b15031 ("mptcp: track window announced to peer") Cc: stable@vger.kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-2-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19mptcp: fix ack generation for fallback mskPaolo Abeni
mptcp_cleanup_rbuf() needs to know the last most recent, mptcp-level rcv_wnd sent, and such information is tracked into the msk->old_wspace field, updated at ack transmission time by mptcp_write_options(). Fallback socket do not add any mptcp options, such helper is never invoked, and msk->old_wspace value remain stale. That in turn makes ack generation at recvmsg() time quite random. Address the issue ensuring mptcp_write_options() is invoked even for fallback sockets, and just update the needed info in such a case. The issue went unnoticed for a long time, as mptcp currently overshots the fallback socket receive buffer autotune significantly. It is going to change in the near future. Fixes: e3859603ba13 ("mptcp: better msk receive window updates") Cc: stable@vger.kernel.org Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/594 Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Geliang Tang <geliang@kernel.org> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-1-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19octeontx2-af: Skip TM tree print for disabled SQsAnshumali Gaur
Currently, the TM tree is printing all SQ topology including those which are not enabled, this results in redundant output for SQs which are not active. This patch adds a check in print_tm_tree() to skip printing the TM tree hierarchy if the SQ is not enabled. Signed-off-by: Anshumali Gaur <agaur@marvell.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20251118054235.1599714-1-agaur@marvell.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19scsi: MAINTAINERS: Add the UFS include directoryBart Van Assche
Make sure that the linux-scsi mailing list is Cc-ed for changes to UFS include headers. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://patch.msgid.link/20251119165742.536170-1-bvanassche@acm.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>