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2020-08-18net: mscc: ocelot: remove duplicate "the the" phrase in Kconfig textColin Ian King
The Kconfig help text contains the phrase "the the" in the help text. Fix this. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18Merge branch 'ethtool-netlink-bug-fixes'David S. Miller
Maxim Mikityanskiy says: ==================== ethtool-netlink bug fixes This series contains a few bug fixes for ethtool-netlink. These bugs are specific for the netlink interface, and the legacy ioctl interface is not affected. These patches aim to have the same behavior in ethtool-netlink as in the legacy ethtool. Please also see the sibling series for the userspace tool. v2 changes: Added Fixes tags. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18ethtool: Don't omit the netlink reply if no features were changedMaxim Mikityanskiy
The legacy ethtool userspace tool shows an error when no features could be changed. It's useful to have a netlink reply to be able to show this error when __netdev_update_features wasn't called, for example: 1. ethtool -k eth0 large-receive-offload: off 2. ethtool -K eth0 rx-fcs on 3. ethtool -K eth0 lro on Could not change any device features rx-lro: off [requested on] 4. ethtool -K eth0 lro on # The output should be the same, but without this patch the kernel # doesn't send the reply, and ethtool is unable to detect the error. This commit makes ethtool-netlink always return a reply when requested, and it still avoids unnecessary calls to __netdev_update_features if the wanted features haven't changed. Fixes: 0980bfcd6954 ("ethtool: set netdev features with FEATURES_SET request") Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18ethtool: Account for hw_features in netlink interfaceMaxim Mikityanskiy
ethtool-netlink ignores dev->hw_features and may confuse the drivers by asking them to enable features not in the hw_features bitmask. For example: 1. ethtool -k eth0 tls-hw-tx-offload: off [fixed] 2. ethtool -K eth0 tls-hw-tx-offload on tls-hw-tx-offload: on 3. ethtool -k eth0 tls-hw-tx-offload: on [fixed] Fitler out dev->hw_features from req_wanted to fix it and to resemble the legacy ethtool behavior. Fixes: 0980bfcd6954 ("ethtool: set netdev features with FEATURES_SET request") Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18ethtool: Fix preserving of wanted feature bits in netlink interfaceMaxim Mikityanskiy
Currently, ethtool-netlink calculates new wanted bits as: (req_wanted & req_mask) | (old_active & ~req_mask) It completely discards the old wanted bits, so they are forgotten with the next ethtool command. Sample steps to reproduce: 1. ethtool -k eth0 tx-tcp-segmentation: on # TSO is on from the beginning 2. ethtool -K eth0 tx off tx-tcp-segmentation: off [not requested] 3. ethtool -k eth0 tx-tcp-segmentation: off [requested on] 4. ethtool -K eth0 rx off # Some change unrelated to TSO 5. ethtool -k eth0 tx-tcp-segmentation: off # "Wanted on" is forgotten This commit fixes it by changing the formula to: (req_wanted & req_mask) | (old_wanted & ~req_mask), where old_active was replaced by old_wanted to account for the wanted bits. The shortcut condition for the case where nothing was changed now compares wanted bitmasks, instead of wanted to active. Fixes: 0980bfcd6954 ("ethtool: set netdev features with FEATURES_SET request") Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18ipv6: some fixes for ipv6_dev_find()Xin Long
This patch is to do 3 things for ipv6_dev_find(): As David A. noticed, - rt6_lookup() is not really needed. Different from __ip_dev_find(), ipv6_dev_find() doesn't have a compatibility problem, so remove it. As Hideaki suggested, - "valid" (non-tentative) check for the address is also needed. ipv6_chk_addr() calls ipv6_chk_addr_and_flags(), which will traverse the address hash list, but it's heavy to be called inside ipv6_dev_find(). This patch is to reuse the code of ipv6_chk_addr_and_flags() for ipv6_dev_find(). - dev parameter is passed into ipv6_dev_find(), as link-local addresses from user space has sin6_scope_id set and the dev lookup needs it. Fixes: 81f6cb31222d ("ipv6: add ipv6_dev_find()") Suggested-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Reported-by: David Ahern <dsahern@gmail.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18bonding: fix active-backup failover for current ARP slaveJiri Wiesner
When the ARP monitor is used for link detection, ARP replies are validated for all slaves (arp_validate=3) and fail_over_mac is set to active, two slaves of an active-backup bond may get stuck in a state where both of them are active and pass packets that they receive to the bond. This state makes IPv6 duplicate address detection fail. The state is reached thus: 1. The current active slave goes down because the ARP target is not reachable. 2. The current ARP slave is chosen and made active. 3. A new slave is enslaved. This new slave becomes the current active slave and can reach the ARP target. As a result, the current ARP slave stays active after the enslave action has finished and the log is littered with "PROBE BAD" messages: > bond0: PROBE: c_arp ens10 && cas ens11 BAD The workaround is to remove the slave with "going back" status from the bond and re-enslave it. This issue was encountered when DPDK PMD interfaces were being enslaved to an active-backup bond. I would be possible to fix the issue in bond_enslave() or bond_change_active_slave() but the ARP monitor was fixed instead to keep most of the actions changing the current ARP slave in the ARP monitor code. The current ARP slave is set as inactive and backup during the commit phase. A new state, BOND_LINK_FAIL, has been introduced for slaves in the context of the ARP monitor. This allows administrators to see how slaves are rotated for sending ARP requests and attempts are made to find a new active slave. Fixes: b2220cad583c9 ("bonding: refactor ARP active-backup monitor") Signed-off-by: Jiri Wiesner <jwiesner@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18net: handle the return value of pskb_carve_frag_list() correctlyMiaohe Lin
pskb_carve_frag_list() may return -ENOMEM in pskb_carve_inside_nonlinear(). we should handle this correctly or we would get wrong sk_buff. Fixes: 6fa01ccd8830 ("skbuff: Add pskb_extract() helper function") Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18drm/amd/display: fix pow() crashing when given base 0Krunoslav Kovac
[Why&How] pow(a,x) is implemented as exp(x*log(a)). log(0) will crash. So return 0^x = 0, unless x=0, convention seems to be 0^0 = 1. Cc: stable@vger.kernel.org Signed-off-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18drm/amd/display: Reset scrambling on Test PatternChris Park
[Why] Programming is missing the sequence where for eDP the scrambling is reset when testing for eye diagram test pattern. [How] Include the required register in the definition Signed-off-by: Chris Park <Chris.Park@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18drm/amd/display: fix dcn3 wide timing dsc validationDmytro Laktyushkin
Wide timing DSC requires odm. Since spreadsheet is missing this dsc validation we have to modify DML vba code ourselves. Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18drm/amd/display: Fix DFPstate hang due to view port changedPaul Hsieh
[Why] Place the cursor in the center of screen between two pipes then adjusting the viewport but cursour doesn't update cause DFPstate hang. [How] If viewport changed, update cursor as well. Cc: stable@vger.kernel.org Signed-off-by: Paul Hsieh <paul.hsieh@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18drm/amd/display: Assign correct left shiftChris Park
[Why] Reading for DP alt registers return incorrect values due to LE_SF definition missing. [How] Define correct LE_SF or DP alt registers. Signed-off-by: Chris Park <Chris.Park@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18drm/amd/display: Call DMUB for eDP power controlChris Park
[Why] If DMUB is used, LVTMA VBIOS call can be used to control eDP instead of tranditional transmitter control. Interface is agreed with VBIOS for eDP to use this new path to program LVTMA registers. [How] Create DAL interface to send DMUB command for LVTMA as currently implemented in VBIOS. Signed-off-by: Chris Park <Chris.Park@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18drm/amdkfd: fix the wrong sdma instance query for renoirHuang Rui
Renoir only has one sdma instance, it will get failed once query the sdma1 registers. So use switch-case instead of static register array. Signed-off-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18drm/amdgpu: parse ta firmware for navy_flounderBhawanpreet Lakha
Use the same case as sienna_cichlid Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18Merge tag 'spi-fix-v5.9-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A bunch of fixes that came in for SPI during the merge window. Some from ST and others for their controller, one from Lukas for a race between device addition and controller unregistration and one from fix from Geert for the DT bindings which unbreaks validation" * tag 'spi-fix-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: dt-bindings: lpspi: Add missing boolean type for fsl,spi-only-use-cs1-sel spi: stm32: always perform registers configuration prior to transfer spi: stm32: fixes suspend/resume management spi: stm32: fix stm32_spi_prepare_mbr in case of odd clk_rate spi: stm32: fix fifo threshold level in case of short transfer spi: stm32h7: fix race condition at end of transfer spi: stm32: clear only asserted irq flags on interrupt spi: Prevent adding devices below an unregistering controller
2020-08-18io_uring: cleanup io_import_iovec() of pre-mapped requestJens Axboe
io_rw_prep_async() goes through a dance of clearing req->io, calling the iovec import, then re-setting req->io. Provide an internal helper that does the right thing without needing state tweaked to get there. This enables further cleanups in io_read, io_write, and io_resubmit_prep(), but that's left for another time. Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-08-18drm/amdgpu: fix NULL pointer access issue when unloading driverGuchun Chen
When unloading driver by "modprobe -r amdgpu", one NULL pointer dereference bug occurs in ras debugfs releasing. The cause is the duplicated debugfs_remove, as drm debugfs_root dir has been cleaned up already by drm_minor_unregister. BUG: kernel NULL pointer dereference, address: 00000000000000a0 PGD 0 P4D 0 Oops: 0002 [#1] SMP PTI CPU: 11 PID: 1526 Comm: modprobe Tainted: G OE 5.6.0-guchchen #1 Hardware name: System manufacturer System Product Name/TUF Z370-PLUS GAMING II, BIOS 0411 09/21/2018 RIP: 0010:down_write+0x15/0x40 Code: eb de e8 7e 17 72 ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 53 48 89 fb e8 92 d8 ff ff 31 c0 ba 01 00 00 00 <f0> 48 0f b1 13 75 0f 65 48 8b 04 25 c0 8b 01 00 48 89 43 08 5b c3 RSP: 0018:ffffb1590386fcd0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00000000000000a0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff85b2fcc2 RDI: 00000000000000a0 RBP: ffffb1590386fd30 R08: ffffffff85b2fcc2 R09: 000000000002b3c0 R10: ffff97a330618c40 R11: 00000000000005f6 R12: ffff97a3481beb40 R13: 00000000000000a0 R14: ffff97a3481beb40 R15: 0000000000000000 FS: 00007fb11a717540(0000) GS:ffff97a376cc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000a0 CR3: 00000004066d6006 CR4: 00000000003606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: simple_recursive_removal+0x63/0x370 ? debugfs_remove+0x60/0x60 debugfs_remove+0x40/0x60 amdgpu_ras_fini+0x82/0x230 [amdgpu] ? __kernfs_remove.part.17+0x101/0x1f0 ? kernfs_name_hash+0x12/0x80 amdgpu_device_fini+0x1c0/0x580 [amdgpu] amdgpu_driver_unload_kms+0x3e/0x70 [amdgpu] amdgpu_pci_remove+0x36/0x60 [amdgpu] pci_device_remove+0x3b/0xb0 device_release_driver_internal+0xe5/0x1c0 driver_detach+0x46/0x90 bus_remove_driver+0x58/0xd0 pci_unregister_driver+0x29/0x90 amdgpu_exit+0x11/0x25 [amdgpu] __x64_sys_delete_module+0x13d/0x210 do_syscall_64+0x5f/0x250 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Signed-off-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18drm/amdgpu: fix uninit-value in arcturus_log_thermal_throttling_event()Kevin Wang
when function arcturus_get_smu_metrics_data() call failed, it will cause the variable "throttler_status" isn't initialized before use. warning: powerplay/arcturus_ppt.c:2268:24: warning: ‘throttler_status’ may be used uninitialized in this function [-Wmaybe-uninitialized] 2268 | if (throttler_status & logging_label[throttler_idx].feature_mask) { Signed-off-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18drm/amdgpu: disable gfxoff for navy_flounderJiansong Chen
gfxoff is temporarily disabled for navy_flounder, since at present the feature has broken some basic amdgpu test. Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18net: gianfar: Add of_node_put() before goto statementSumera Priyadarsini
Every iteration of for_each_available_child_of_node() decrements reference count of the previous node, however when control is transferred from the middle of the loop, as in the case of a return or break or goto, there is no decrement thus ultimately resulting in a memory leak. Fix a potential memory leak in gianfar.c by inserting of_node_put() before the goto statement. Issue found with Coccinelle. Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18Merge branch 'cxgb4-Fix-ethtool-selftest-flits-calculation'David S. Miller
Ganji Aravind says: ==================== cxgb4: Fix ethtool selftest flits calculation Patch 1 will fix work request size calculation for loopback selftest. Patch 2 will fix race between loopback selftest and normal Tx handler. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18cxgb4: Fix race between loopback and normal Tx pathGanji Aravind
Even after Tx queues are marked stopped, there exists a small window where the current packet in the normal Tx path is still being sent out and loopback selftest ends up corrupting the same Tx ring. So, ensure selftest takes the Tx lock to synchronize access the Tx ring. Fixes: 7235ffae3d2c ("cxgb4: add loopback ethtool self-test") Signed-off-by: Ganji Aravind <ganji.aravind@chelsio.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18cxgb4: Fix work request size calculation for loopback testGanji Aravind
Work request used for sending loopback packet needs to add the firmware work request only once. So, fix by using correct structure size. Fixes: 7235ffae3d2c ("cxgb4: add loopback ethtool self-test") Signed-off-by: Ganji Aravind <ganji.aravind@chelsio.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18Merge branch 'sfc-more-EF100-fixes'David S. Miller
Edward Cree says: ==================== sfc: more EF100 fixes Fix up some bugs in the initial EF100 submission, and re-fix the hash_valid fix which was incomplete. The reset bugs are currently hard to trigger; they were found with an in-progress patch adding ethtool support, whereby ethtool --reset reliably reproduces them. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18sfc: don't free_irq()s if they were never requestedEdward Cree
If efx_nic_init_interrupt fails, or was never run (e.g. due to an earlier failure in ef100_net_open), freeing irqs in efx_nic_fini_interrupt is not needed and will cause error messages and stack traces. So instead, only do this if efx_nic_init_interrupt successfully completed, as indicated by the new efx->irqs_hooked flag. Fixes: 965b549f3c20 ("sfc_ef100: implement ndo_open/close and EVQ probing") Signed-off-by: Edward Cree <ecree@solarflare.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18sfc: null out channel->rps_flow_id after freeing itEdward Cree
If an ef100_net_open() fails, ef100_net_stop() may be called without channel->rps_flow_id having been written; thus it may hold the address freed by a previous ef100_net_stop()'s call to efx_remove_filters(). This then causes a double-free when efx_remove_filters() is called again, leading to a panic. To prevent this, after freeing it, overwrite it with NULL. Fixes: a9dc3d5612ce ("sfc_ef100: RX filter table management and related gubbins") Signed-off-by: Edward Cree <ecree@solarflare.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18sfc: take correct lock in ef100_reset()Edward Cree
When downing and upping the ef100 filter table, we need to take a write lock on efx->filter_sem, not just a read lock, because we may kfree() the table pointers. Without this, resets cause a WARN_ON from efx_rwsem_assert_write_locked(). Fixes: a9dc3d5612ce ("sfc_ef100: RX filter table management and related gubbins") Signed-off-by: Edward Cree <ecree@solarflare.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18sfc: really check hash is valid before using itEdward Cree
Actually hook up the .rx_buf_hash_valid method in EF100's nic_type. Fixes: 068885434ccb ("sfc: check hash is valid before using it") Reported-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18macvlan: validate setting of multiple remote source MAC addressesAlvin Šipraga
Remote source MAC addresses can be set on a 'source mode' macvlan interface via the IFLA_MACVLAN_MACADDR_DATA attribute. This commit tightens the validation of these MAC addresses to match the validation already performed when setting or adding a single MAC address via the IFLA_MACVLAN_MACADDR attribute. iproute2 uses IFLA_MACVLAN_MACADDR_DATA for its 'macvlan macaddr set' command, and IFLA_MACVLAN_MACADDR for its 'macvlan macaddr add' command, which demonstrates the inconsistent behaviour that this commit addresses: # ip link add link eth0 name macvlan0 type macvlan mode source # ip link set link dev macvlan0 type macvlan macaddr add 01:00:00:00:00:00 RTNETLINK answers: Cannot assign requested address # ip link set link dev macvlan0 type macvlan macaddr set 01:00:00:00:00:00 # ip -d link show macvlan0 5: macvlan0@eth0: <BROADCAST,MULTICAST,DYNAMIC,UP,LOWER_UP> mtu 1500 ... link/ether 2e:ac:fd:2d:69:f8 brd ff:ff:ff:ff:ff:ff promiscuity 0 macvlan mode source remotes (1) 01:00:00:00:00:00 numtxqueues 1 ... With this change, the 'set' command will (rightly) fail in the same way as the 'add' command. Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18Merge tag 'fixes-2020-08-18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock Pull ia64 page table fix from Mike Rapoport: "Fix regression in IA-64 caused by page table allocation refactoring The refactoring and consolidation of <asm/pgalloc.h> caused regression on parisc and ia64. The fix for parisc made it into v5.9-rc1 while the fix ia64 got delayed a bit and here it is" * tag 'fixes-2020-08-18' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: arch/ia64: Restore arch-specific pgd_offset_k implementation
2020-08-18mm/memory.c: skip spurious TLB flush for retried page faultYang Shi
Recently we found regression when running will_it_scale/page_fault3 test on ARM64. Over 70% down for the multi processes cases and over 20% down for the multi threads cases. It turns out the regression is caused by commit 89b15332af7c ("mm: drop mmap_sem before calling balance_dirty_pages() in write fault"). The test mmaps a memory size file then write to the mapping, this would make all memory dirty and trigger dirty pages throttle, that upstream commit would release mmap_sem then retry the page fault. The retried page fault would see correct PTEs installed then just fall through to spurious TLB flush. The regression is caused by the excessive spurious TLB flush. It is fine on x86 since x86's spurious TLB flush is no-op. We could just skip the spurious TLB flush to mitigate the regression. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Reported-by: Xu Yu <xuyu@linux.alibaba.com> Debugged-by: Xu Yu <xuyu@linux.alibaba.com> Tested-by: Xu Yu <xuyu@linux.alibaba.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Yang Shi <shy828301@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-18ext4: change to use fallthrough macroShijie Luo
Change to use fallthrough macro in switch case. Signed-off-by: Shijie Luo <luoshijie1@huawei.com> Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com> Link: https://lore.kernel.org/r/20200810114435.24182-1-luoshijie1@huawei.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-08-18ext4: remove unused parameter of ext4_generic_delete_entry functionKyoungho Koo
The ext4_generic_delete_entry function does not use the parameter handle, so it can be removed. Signed-off-by: Kyoungho Koo <rnrudgh@gmail.com> Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com> Link: https://lore.kernel.org/r/20200810080701.GA14160@koo-Z370-HD3 Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-08-18mballoc: replace seq_printf with seq_putsXu Wang
seq_puts is a lot cheaper than seq_printf, so use that to print literal strings. Signed-off-by: Xu Wang <vulab@iscas.ac.cn> Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com> Link: https://lore.kernel.org/r/20200810022158.9167-1-vulab@iscas.ac.cn Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-08-18ext4: optimize the implementation of ext4_mb_good_group()brookxu
It might be better to adjust the code in two places: 1. Determine whether grp is currupt or not should be placed first. 2. (cr<=2 && free <ac->ac_g_ex.fe_len)should may belong to the crx strategy, and it may be more appropriate to put it in the subsequent switch statement block. For cr1, cr2, the conditions in switch potentially realize the above judgment. For cr0, we should add (free <ac->ac_g_ex.fe_len) judgment, and then delete (free / fragments) >= ac->ac_g_ex.fe_len), because cr0 returns true by default. Signed-off-by: Chunguang Xu <brookxu@tencent.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com> Link: https://lore.kernel.org/r/e20b2d8f-1154-adb7-3831-a9e11ba842e9@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-08-18ext4: delete invalid comments near ext4_mb_check_limits()brookxu
These comments do not seem to be related to ext4_mb_check_limits(), it may be invalid. Signed-off-by: Chunguang Xu <brookxu@tencent.com> Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com> Link: https://lore.kernel.org/r/c49faf0c-d5d5-9c51-6911-9e0ff57c6bfa@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-08-18ext4: fix typos in ext4_mb_regular_allocator() commentbrookxu
Fix typos in ext4_mb_regular_allocator() comment Signed-off-by: Chunguang Xu <brookxu@tencent.com> Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Link: https://lore.kernel.org/r/d6514145-73b3-808b-ec5a-a8be27c51f9c@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-08-18batman-adv: bla: use netif_rx_ni when not in interrupt contextJussi Kivilinna
batadv_bla_send_claim() gets called from worker thread context through batadv_bla_periodic_work(), thus netif_rx_ni needs to be used in that case. This fixes "NOHZ: local_softirq_pending 08" log messages seen when batman-adv is enabled. Fixes: 23721387c409 ("batman-adv: add basic bridge loop avoidance code") Signed-off-by: Jussi Kivilinna <jussi.kivilinna@haltian.com> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2020-08-18batman-adv: Fix own OGM check in aggregated OGMsLinus Lüssing
The own OGM check is currently misplaced and can lead to the following issues: For one thing we might receive an aggregated OGM from a neighbor node which has our own OGM in the first place. We would then not only skip our own OGM but erroneously also any other, following OGM in the aggregate. For another, we might receive an OGM aggregate which has our own OGM in a place other then the first one. Then we would wrongly not skip this OGM, leading to populating the orginator and gateway table with ourself. Fixes: 9323158ef9f4 ("batman-adv: OGMv2 - implement originators logic") Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2020-08-18batman-adv: Avoid uninitialized chaddr when handling DHCPSven Eckelmann
The gateway client code can try to optimize the delivery of DHCP packets to avoid broadcasting them through the whole mesh. But also transmissions to the client can be optimized by looking up the destination via the chaddr of the DHCP packet. But the chaddr is currently only done when chaddr is fully inside the non-paged area of the skbuff. Otherwise it will not be initialized and the unoptimized path should have been taken. But the implementation didn't handle this correctly. It didn't retrieve the correct chaddr but still tried to perform the TT lookup with this uninitialized memory. Reported-by: syzbot+ab16e463b903f5a37036@syzkaller.appspotmail.com Fixes: 6c413b1c22a2 ("batman-adv: send every DHCP packet as bat-unicast") Signed-off-by: Sven Eckelmann <sven@narfation.org> Acked-by: Antonio Quartulli <a@unstable.cc> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2020-08-18libbpf: Fix build on ppc64le architectureAndrii Nakryiko
On ppc64le we get the following warning: In file included from btf_dump.c:16:0: btf_dump.c: In function ‘btf_dump_emit_struct_def’: ../include/linux/kernel.h:20:17: error: comparison of distinct pointer types lacks a cast [-Werror] (void) (&_max1 == &_max2); \ ^ btf_dump.c:882:11: note: in expansion of macro ‘max’ m_sz = max(0LL, btf__resolve_size(d->btf, m->type)); ^~~ Fix by explicitly casting to __s64, which is a return type from btf__resolve_size(). Fixes: 702eddc77a90 ("libbpf: Handle GCC built-in types for Arm NEON") Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200818164456.1181661-1-andriin@fb.com
2020-08-18dt-bindings: Use Shawn Guo's preferred e-mail for i.MX bindingsFabio Estevam
Use Shawn Guo's kernel.org address for the i.MX related bindings as per the MAINTAINERS entries. Signed-off-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20200818111245.17047-1-festevam@gmail.com Signed-off-by: Rob Herring <robh@kernel.org>
2020-08-18RDMA/usnic: Fix spelling mistake "transistion" -> "transition"Colin Ian King
There is a spelling mistake in a usnic_err error message. Fix it. Link: https://lore.kernel.org/r/20200805141459.23069-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-08-18RDMA/hns: Fix spelling mistake "epmty" -> "empty"Colin Ian King
There is a spelling mistake in a dev_dbg message. Fix it. Link: https://lore.kernel.org/r/20200805141111.22804-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-08-18EDAC/{i7core,sb,pnd2,skx}: Fix error event severityTony Luck
IA32_MCG_STATUS.RIPV indicates whether the return RIP value pushed onto the stack as part of machine check delivery is valid or not. Various drivers copied a code fragment that uses the RIPV bit to determine the severity of the error as either HW_EVENT_ERR_UNCORRECTED or HW_EVENT_ERR_FATAL, but this check is reversed (marking errors where RIPV is set as "FATAL"). Reverse the tests so that the error is marked fatal when RIPV is not set. Reported-by: Gabriele Paoloni <gabriele.paoloni@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: <stable@vger.kernel.org> Link: https://lkml.kernel.org/r/20200707194324.14884-1-tony.luck@intel.com
2020-08-18kconfig: qconf: remove unused colNrMasahiro Yamada
This is not used at all. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-08-18kconfig: qconf: fix the popup menu in the ConfigInfoView windowMasahiro Yamada
I do not know when ConfigInfoView::createStandardContextMenu() is called. Because QTextEdit::createStandardContextMenu() is not virtual, ConfigInfoView::createStandardContextMenu() cannot override it. Even if right-click the ConfigInfoView window, the "Show Debug Info" menu does not show up. Build up the menu in the constructor, and invoke it from the contextMenuEvent(). Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-08-18kconfig: qconf: fix signal connection to invalid slotsMasahiro Yamada
If you right-click in the ConfigList window, you will see the following messages in the console: QObject::connect: No such slot QAction::setOn(bool) in scripts/kconfig/qconf.cc:888 QObject::connect: (sender name: 'config') QObject::connect: No such slot QAction::setOn(bool) in scripts/kconfig/qconf.cc:897 QObject::connect: (sender name: 'config') QObject::connect: No such slot QAction::setOn(bool) in scripts/kconfig/qconf.cc:906 QObject::connect: (sender name: 'config') Right, there is no such slot in QAction. I think this is a typo of setChecked. Due to this bug, when you toggled the menu "Option->Show Name/Range/Data" the state of the context menu was not previously updated. Fix this. Fixes: d5d973c3f8a9 ("Port xconfig to Qt5 - Put back some of the old implementation(part 2)") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>