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2022-07-18iavf: Disallow changing rx/tx-frames and rx/tx-frames-irqPrzemyslaw Patynowski4-13/+1
Remove from supported_coalesce_params ETHTOOL_COALESCE_MAX_FRAMES and ETHTOOL_COALESCE_MAX_FRAMES_IRQ. As tx-frames-irq allowed user to change budget for iavf_clean_tx_irq, remove work_limit and use define for budget. Without this patch there would be possibility to change rx/tx-frames and rx/tx-frames-irq, which for rx/tx-frames did nothing, while for rx/tx-frames-irq it changed rx/tx-frames and only changed budget for cleaning NAPI poll. Fixes: fbb7ddfef253 ("i40evf: core ethtool functionality") Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com> Signed-off-by: Jun Zhang <xuejun.zhang@intel.com> Tested-by: Marek Szlosek <marek.szlosek@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-07-18iavf: Fix VLAN_V2 addition/rejectionPrzemyslaw Patynowski3-10/+74
Fix VLAN addition, so that PF driver does not reject whole VLAN batch. Add VLAN reject handling, so rejected VLANs, won't litter VLAN filter list. Fix handling of active_(c/s)vlans, so it will be possible to re-add VLAN filters for user. Without this patch, after changing trust to off, with VLAN filters saturated, no VLAN is added, due to PF rejecting addition. Fixes: 92fc50859872 ("iavf: Restrict maximum VLAN filters for VIRTCHNL_VF_OFFLOAD_VLAN_V2") Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com> Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-07-18igc: Remove forced_speed_duplex valueSasha Neftin1-2/+0
u8 forced_speed_duplex from value from igc_mac_info struct is not used. This patch comes to tidy up the driver code. Signed-off-by: Sasha Neftin <sasha.neftin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-07-18igc: Remove MSI-X PBA Clear registerSasha Neftin1-3/+0
MSI-X PBA Clear register is not used. This patch comes to tidy up the driver code. Signed-off-by: Sasha Neftin <sasha.neftin@intel.com> Tested-by: Naama Meir <naamax.meir@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-07-18igc: Lift TAPRIO schedule restrictionKurt Kanzenbach1-6/+17
Add support for Qbv schedules where one queue stays open in consecutive entries. Currently that's not supported. Example schedule: |tc qdisc replace dev ${INTERFACE} handle 100 parent root taprio num_tc 3 \ | map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 \ | queues 1@0 1@1 2@2 \ | base-time ${BASETIME} \ | sched-entry S 0x01 300000 \ # Stream High/Low | sched-entry S 0x06 500000 \ # Management and Best Effort | sched-entry S 0x04 200000 \ # Best Effort | flags 0x02 Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Tested-by: Naama Meir <naamax.meir@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-07-18drm/amdgpu: Remove one duplicated ef removalxinhui pan1-6/+0
That has been done in BO release notify. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2074 Signed-off-by: xinhui pan <xinhui.pan@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-18x86/amd: Use IBPB for firmware callsPeter Zijlstra3-1/+13
On AMD IBRS does not prevent Retbleed; as such use IBPB before a firmware call to flush the branch history state. And because in order to do an EFI call, the kernel maps a whole lot of the kernel page table into the EFI page table, do an IBPB just in case in order to prevent the scenario of poisoning the BTB and causing an EFI call using the unprotected RET there. [ bp: Massage. ] Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20220715194550.793957-1-cascardo@canonical.com
2022-07-18wifi: wl1251: fix repeated words in commentsJilin Yuan1-1/+1
Delete the redundant word 'the'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220710043405.38304-1-yuanjilin@cdjrlc.com
2022-07-18wifi: rsi: fix repeated words in commentsJilin Yuan1-1/+1
Delete the redundant word 'the'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220710043007.33288-1-yuanjilin@cdjrlc.com
2022-07-18wifi: rtl8192se: fix repeated words in commentsJilin Yuan1-1/+1
Delete the redundant word 'not'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220710042546.28504-1-yuanjilin@cdjrlc.com
2022-07-18wifi: rtlwifi: fix repeated words in commentsJilin Yuan2-2/+2
Delete the redundant words 'in' and 'scan'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220710042040.22456-1-yuanjilin@cdjrlc.com
2022-07-18wifi: rt2x00: fix repeated words in commentsJilin Yuan2-2/+2
Delete the redundant words 'is' and 'with'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220710041442.16177-1-yuanjilin@cdjrlc.com
2022-07-18wifi: qtnfmac: fix repeated words in commentsJilin Yuan1-2/+2
Delete the redundant word 'the'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220710041005.10950-1-yuanjilin@cdjrlc.com
2022-07-18wifi: iwlegacy: fix repeated words in commentsJilin Yuan2-2/+2
Delete the redundant words 'to' and 'if'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220709135316.41425-1-yuanjilin@cdjrlc.com
2022-07-18wifi: ipw2x00: fix repeated words in commentsJilin Yuan1-1/+1
Delete the redundant word 'the'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220709134701.36081-1-yuanjilin@cdjrlc.com
2022-07-18wifi: brcmsmac: fix repeated words in commentsJilin Yuan1-1/+1
Delete the redundant word 'the'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220709134207.30856-1-yuanjilin@cdjrlc.com
2022-07-18wifi: brcmfmac: fix repeated words in commentsJilin Yuan2-2/+2
Delete the redundant words 'this' and 'and'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220709133618.25958-1-yuanjilin@cdjrlc.com
2022-07-18wifi: b43: fix repeated words in commentsJilin Yuan1-1/+1
Delete the redundant word 'early'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220709133119.21076-1-yuanjilin@cdjrlc.com
2022-07-18wifi: atmel: fix repeated words in commentsJilin Yuan1-1/+1
Delete the redundant word 'long'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220709132637.16717-1-yuanjilin@cdjrlc.com
2022-07-18wifi: mac80211: do not abuse fq.lock in ieee80211_do_stop()Tetsuo Handa1-2/+1
lockdep complains use of uninitialized spinlock at ieee80211_do_stop() [1], for commit f856373e2f31ffd3 ("wifi: mac80211: do not wake queues on a vif that is being stopped") guards clear_bit() using fq.lock even before fq_init() from ieee80211_txq_setup_flows() initializes this spinlock. According to discussion [2], Toke was not happy with expanding usage of fq.lock. Since __ieee80211_wake_txqs() is called under RCU read lock, we can instead use synchronize_rcu() for flushing ieee80211_wake_txqs(). Link: https://syzkaller.appspot.com/bug?extid=eceab52db7c4b961e9d6 [1] Link: https://lkml.kernel.org/r/874k0zowh2.fsf@toke.dk [2] Reported-by: syzbot <syzbot+eceab52db7c4b961e9d6@syzkaller.appspotmail.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Fixes: f856373e2f31ffd3 ("wifi: mac80211: do not wake queues on a vif that is being stopped") Tested-by: syzbot <syzbot+eceab52db7c4b961e9d6@syzkaller.appspotmail.com> Acked-by: Toke Høiland-Jørgensen <toke@kernel.org> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/9cc9b81d-75a3-3925-b612-9d0ad3cab82b@I-love.SAKURA.ne.jp
2022-07-18wifi: p54: add missing parentheses in p54_flush()Rustam Subkhankulov1-1/+1
The assignment of the value to the variable total in the loop condition must be enclosed in additional parentheses, since otherwise, in accordance with the precedence of the operators, the conjunction will be performed first, and only then the assignment. Due to this error, a warning later in the function after the loop may not occur in the situation when it should. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Rustam Subkhankulov <subkhankulov@ispras.ru> Fixes: 0d4171e2153b ("p54: implement flush callback") Acked-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220714134831.106004-1-subkhankulov@ispras.ru
2022-07-18wifi: mt7601u: fix clang -Wformat warningJustin Stitt1-1/+1
When building with Clang we encounter this warning: | drivers/net/wireless/mediatek/mt7601u/debugfs.c:92:6: error: format | specifies type 'unsigned char' but the argument has type 'int' | [-Werror,-Wformat] dev->ee->reg.start + dev->ee->reg.num - 1); The format specifier used is `%hhu` which describes a u8. Both `dev->ee->reg.start` and `.num` are u8 as well. However, the expression as a whole is promoted to an int as you cannot get smaller-than-int from addition. Therefore, to fix the warning, use the promoted-to-type's format specifier -- in this case `%d`. example: ``` uint8_t a = 4, b = 7; int size = sizeof(a + b - 1); printf("%d\n", size); // output: 4 ``` See more: (https://wiki.sei.cmu.edu/confluence/display/c/INT02-C.+Understand+integer+conversion+rules) "Integer types smaller than int are promoted when an operation is performed on them. If all values of the original type can be represented as an int, the value of the smaller type is converted to an int; otherwise, it is converted to an unsigned int." Signed-off-by: Justin Stitt <justinstitt@google.com> Acked-by: Jakub Kicinski <kubakici@wp.pl> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220711212932.1501592-1-justinstitt@google.com
2022-07-18wifi: mt7601u: eeprom: fix clang -Wformat warningJustin Stitt1-1/+1
When building with Clang we encounter the following warning: | drivers/net/wireless/mediatek/mt7601u/eeprom.c:193:5: error: format | specifies type 'char' but the argument has type 'int' [-Werror,-Wformat] | chan_bounds[idx].start + chan_bounds[idx].num - 1); Variadic functions (printf-like) undergo default argument promotion. Documentation/core-api/printk-formats.rst specifically recommends using the promoted-to-type's format flag. Moreover, C11 6.3.1.1 states: (https://www.open-std.org/jtc1/sc22/wg14/www/docs/n1548.pdf) `If an int can represent all values of the original type ..., the value is converted to an int; otherwise, it is converted to an unsigned int. These are called the integer promotions.` With this information in hand, we really should stop using `%hh[dxu]` or `%h[dxu]` as they usually prompt Clang -Wformat warnings as well as go against documented standard recommendations. Link: https://github.com/ClangBuiltLinux/linux/issues/378 Signed-off-by: Justin Stitt <justinstitt@google.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220709001527.618593-1-justinstitt@google.com
2022-07-18wifi: p54: Use the bitmap API to allocate bitmapsChristophe JAILLET2-5/+3
Use bitmap_zalloc()/bitmap_free() instead of hand-writing them. It is less verbose and it improves the semantic. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/2755b8b7d85a2db0663d39ea6df823f94f3401b3.1656939750.git.christophe.jaillet@wanadoo.fr
2022-07-18wifi: p54: Fix an error handling path in p54spi_probe()Christophe JAILLET1-1/+2
If an error occurs after a successful call to p54spi_request_firmware(), it must be undone by a corresponding release_firmware() as already done in the error handling path of p54spi_request_firmware() and in the .remove() function. Add the missing call in the error handling path and remove it from p54spi_request_firmware() now that it is the responsibility of the caller to release the firmware Fixes: cd8d3d321285 ("p54spi: p54spi driver") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/297d2547ff2ee627731662abceeab9dbdaf23231.1655068321.git.christophe.jaillet@wanadoo.fr
2022-07-18Merge branch 'dsa-docs'David S. Miller1-60/+303
Vladimir Oltean says: ==================== Update DSA documentation These are some updates of dsa.rst, since it hasn't kept up with development (in some cases, even since 2017). I've added Fixes: tags as I thought was appropriate. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: mention that VLANs are now refcounted on shared portsVladimir Oltean1-1/+7
The blamed commit updated the way in which VLANs are handled at the cross-chip notifier layer and didn't update the documentation to say that. Fix it. Fixes: 134ef2388e7f ("net: dsa: add explicit support for host bridge VLANs") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: delete misinformation about -EOPNOTSUPP for FDB/MDB/VLANVladimir Oltean1-9/+3
Returning -EOPNOTSUPP does *NOT* mean anything special. port_vlan_add() is actually called from 2 code paths, one is vlan_vid_add() from 8021q module and the other is br_switchdev_port_vlan_add() from switchdev. The bridge has a wrapper __vlan_vid_add() which first tries via switchdev, then if that returns -EOPNOTSUPP, tries again via the VLAN RX filters in the 8021q module. But DSA doesn't distinguish between one call path and the other when calling the driver's port_vlan_add(), so if the driver returns -EOPNOTSUPP to switchdev, it also returns -EOPNOTSUPP to the 8021q module. And the latter is a hard error. port_fdb_add() is called from the deferred dsa_owq only, so obviously its return code isn't propagated anywhere, and cannot be interpreted in any way. The return code from port_mdb_add() is propagated to the bridge, but again, this doesn't do anything special when -EOPNOTSUPP is returned, but rather, br_switchdev_mdb_notify() returns void. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: re-explain what port_fdb_dump actually doesVladimir Oltean1-3/+6
Switchdev has changed radically from its initial implementation, and the currently provided definition is incorrect and very confusing. Rewrite it in light of what it actually does. Fixes: 2bedde1abbef ("net: dsa: Move FDB dump implementation inside DSA") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: add a section for address databasesVladimir Oltean1-6/+130
The given definition for what VID 0 represents in the current port_fdb_add and port_mdb_add is blatantly wrong. Delete it and explain the concepts surrounding DSA's understanding of FDB isolation. Fixes: c26933639b54 ("net: dsa: request drivers to perform FDB isolation") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: delete port_mdb_dumpVladimir Oltean1-4/+0
This was deleted in 2017, stop documenting it. Fixes: dc0cbff3ff9f ("net: dsa: Remove redundant MDB dump support") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: remove port_vlan_dumpVladimir Oltean1-4/+0
This was deleted in 2017, delete the obsolete documentation. Fixes: c069fcd82c57 ("net: dsa: Remove support for bypass bridge port attributes/vlan set") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: remove port_bridge_tx_fwd_offloadVladimir Oltean1-16/+46
We've changed the API through which we can offload the bridge TX forwarding process. Update the documentation in light of the removal of 2 DSA switch ops. Fixes: b079922ba2ac ("net: dsa: add a "tx_fwd_offload" argument to ->port_bridge_join") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: document port_fast_ageVladimir Oltean1-6/+8
The provided information about FDB flushing is not really up to date. The DSA core automatically calls port_fast_age() when necessary, and drivers should just implement that rather than hooking it to port_bridge_leave, port_stp_state_set and others. Fixes: 732f794c1baf ("net: dsa: add port fast ageing") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: document port_setup and port_teardownVladimir Oltean1-0/+9
These methods were added without being documented, fix that. Fixes: fd292c189a97 ("net: dsa: tear down devlink port regions when tearing down the devlink port on error") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: document the teardown methodVladimir Oltean1-1/+2
A teardown method was added to dsa_switch_ops without being documented. Do so now. Fixes: 5e3f847a02aa ("net: dsa: Add teardown callback for drivers") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: document change_tag_protocolVladimir Oltean1-0/+6
Support for changing the tagging protocol was added without this operation being documented; do so now. Fixes: 53da0ebaad10 ("net: dsa: allow changing the tag protocol via the "tagging" device attribute") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: add more info about the other arguments to get_tag_protocolVladimir Oltean1-1/+5
Changes were made to the prototype of get_tag_protocol without describing at a high level what they are about. Update the documentation to explain that. Fixes: 5ed4e3eb0217 ("net: dsa: Pass a port to get_tag_protocol()") Fixes: 4d776482ecc6 ("net: dsa: Get information about stacked DSA protocol") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: rename tag_protocol to get_tag_protocolVladimir Oltean1-2/+2
Since the blamed commit, the enum was turned into a function pointer and also renamed. Update the documentation. Fixes: 7b314362a234 ("net: dsa: Allow the DSA driver to indicate the tag protocol") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: document the shutdown behaviorVladimir Oltean1-0/+18
Document the changes that took place in the DSA core in the blamed commit. Fixes: 0650bf52b31f ("net: dsa: be compatible with masters which unregister on shutdown") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: update probing documentationVladimir Oltean1-11/+65
Since the blamed commit we don't have register_switch_driver() and unregister_switch_driver() anymore. Additionally, the expected dsa_register_switch() and dsa_unregister_switch() calls aren't documented. Update the probing section with the details of how things are currently done. Fixes: 93e86b3bc842 ("net: dsa: Remove legacy probing support") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18Merge tag 'mt76-for-kvalo-2022-07-11' of https://github.com/nbd168/wirelessKalle Valo61-3794/+3005
mt76 patches for 5.20 - preparation for new chipset support - fixes - VHT/HE related improvements - ACPI SAR support [kvalo@kernel.org: fix mac80211 API changes in start_ap() and stop_ap()]
2022-07-18Merge branch 'net-ipv4-sysctl-races-part-3'David S. Miller18-73/+106
Kuniyuki Iwashima says: ==================== sysctl: Fix data-races around ipv4_net_table (Round 3). This series fixes data-races around 21 knobs after igmp_link_local_mcast_reports in ipv4_net_table. These 4 knobs are skipped because they are safe. - tcp_congestion_control: Safe with RCU and xchg(). - tcp_available_congestion_control: Read only. - tcp_allowed_congestion_control: Safe with RCU and spinlock(). - tcp_fastopen_key: Safe with RCU and xchg() So, round 4 will start with fib_multipath_use_neigh. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18tcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout.Kuniyuki Iwashima1-2/+3
While reading sysctl_tcp_fastopen_blackhole_timeout, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: cf1ef3f0719b ("net/tcp_fastopen: Disable active side TFO in certain scenarios") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18tcp: Fix data-races around sysctl_tcp_fastopen.Kuniyuki Iwashima3-5/+7
While reading sysctl_tcp_fastopen, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 2100c8d2d9db ("net-tcp: Fast Open base") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Acked-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18tcp: Fix data-races around sysctl_max_syn_backlog.Kuniyuki Iwashima1-2/+4
While reading sysctl_max_syn_backlog, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18tcp: Fix a data-race around sysctl_tcp_tw_reuse.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_tw_reuse, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18tcp: Fix a data-race around sysctl_tcp_notsent_lowat.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_notsent_lowat, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: c9bee3b7fdec ("tcp: TCP_NOTSENT_LOWAT socket option") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18tcp: Fix data-races around some timeout sysctl knobs.Kuniyuki Iwashima4-8/+9
While reading these sysctl knobs, they can be changed concurrently. Thus, we need to add READ_ONCE() to their readers. - tcp_retries1 - tcp_retries2 - tcp_orphan_retries - tcp_fin_timeout Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18tcp: Fix data-races around sysctl_tcp_reordering.Kuniyuki Iwashima3-5/+10
While reading sysctl_tcp_reordering, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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