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2021-11-15net: ethernet: lantiq_etop: fix build errors/warningsRandy Dunlap1-3/+17
Fix build error and warnings reported by kernel test robot: drivers/net/ethernet/lantiq_etop.c: In function 'ltq_etop_probe': drivers/net/ethernet/lantiq_etop.c:673:15: error: implicit declaration of function 'device_property_read_u32' [-Werror=implicit-function-declaration] 673 | err = device_property_read_u32(&pdev->dev, "lantiq,tx-burst-length", &priv->tx_burst_len); drivers/net/ethernet/lantiq_etop.c: At top level: drivers/net/ethernet/lantiq_etop.c:730:1: warning: no previous prototype for 'init_ltq_etop' [-Wmissing-prototypes] 730 | init_ltq_etop(void) drivers/net/ethernet/lantiq_etop.c: In function 'ltq_etop_hw_init': drivers/net/ethernet/lantiq_etop.c:276:25: warning: ignoring return value of 'request_irq' declared with attribute 'warn_unused_result' [-Wunused-result] 276 | request_irq(irq, ltq_etop_dma_irq, 0, "etop_tx", priv); drivers/net/ethernet/lantiq_etop.c:284:25: warning: ignoring return value of 'request_irq' declared with attribute 'warn_unused_result' [-Wunused-result] 284 | request_irq(irq, ltq_etop_dma_irq, 0, "etop_rx", priv); Fixes: 14d4e308e0aa ("net: lantiq: configure the burst length in ethernet drivers") Fixes: dddb29e42770 ("net: lantiq_etop: remove deprecated IRQF_DISABLED") Fixes: 504d4721ee8e ("MIPS: Lantiq: Add ethernet driver") Signed-off-by: Randy Dunlap <[email protected]> Reported-by: kernel test robot <[email protected]> Link: lore.kernel.org/r/[email protected] To: [email protected] Cc: Aleksander Jan Bajkowski <[email protected]> Cc: Hauke Mehrtens <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jakub Kicinski <[email protected]> Cc: John Crispin <[email protected]> Cc: [email protected] Cc: Ralf Baechle <[email protected]> Cc: Michael Opdenacker <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-15printk: Remove printk.h inclusion in percpu.hAndy Shevchenko1-1/+0
After the commit 42a0bb3f7138 ("printk/nmi: generic solution for safe printk in NMI") the printk.h is not needed anymore in percpu.h. Moreover `make headerdep` complains (an excerpt) In file included from linux/printk.h, from linux/dynamic_debug.h:188 from linux/printk.h:559 <-- here from linux/percpu.h:9 from linux/idr.h:17 include/net/9p/client.h:13: warning: recursive header inclusion Yeah, it's not a root cause of this, but removing will help to reduce the noise. Fixes: 42a0bb3f7138 ("printk/nmi: generic solution for safe printk in NMI") Signed-off-by: Andy Shevchenko <[email protected]> Acked-by: Dennis Zhou <[email protected]> Reviewed-by: Petr Mladek <[email protected]> Signed-off-by: Petr Mladek <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-11-15atlantic: Fix OOB read and write in hw_atl_utils_fw_rpc_waitZekun Shen1-0/+10
This bug report shows up when running our research tools. The reports is SOOB read, but it seems SOOB write is also possible a few lines below. In details, fw.len and sw.len are inputs coming from io. A len over the size of self->rpc triggers SOOB. The patch fixes the bugs by adding sanity checks. The bugs are triggerable with compromised/malfunctioning devices. They are potentially exploitable given they first leak up to 0xffff bytes and able to overwrite the region later. The patch is tested with QEMU emulater. This is NOT tested with a real device. Attached is the log we found by fuzzing. BUG: KASAN: slab-out-of-bounds in hw_atl_utils_fw_upload_dwords+0x393/0x3c0 [atlantic] Read of size 4 at addr ffff888016260b08 by task modprobe/213 CPU: 0 PID: 213 Comm: modprobe Not tainted 5.6.0 #1 Call Trace: dump_stack+0x76/0xa0 print_address_description.constprop.0+0x16/0x200 ? hw_atl_utils_fw_upload_dwords+0x393/0x3c0 [atlantic] ? hw_atl_utils_fw_upload_dwords+0x393/0x3c0 [atlantic] __kasan_report.cold+0x37/0x7c ? aq_hw_read_reg_bit+0x60/0x70 [atlantic] ? hw_atl_utils_fw_upload_dwords+0x393/0x3c0 [atlantic] kasan_report+0xe/0x20 hw_atl_utils_fw_upload_dwords+0x393/0x3c0 [atlantic] hw_atl_utils_fw_rpc_call+0x95/0x130 [atlantic] hw_atl_utils_fw_rpc_wait+0x176/0x210 [atlantic] hw_atl_utils_mpi_create+0x229/0x2e0 [atlantic] ? hw_atl_utils_fw_rpc_wait+0x210/0x210 [atlantic] ? hw_atl_utils_initfw+0x9f/0x1c8 [atlantic] hw_atl_utils_initfw+0x12a/0x1c8 [atlantic] aq_nic_ndev_register+0x88/0x650 [atlantic] ? aq_nic_ndev_init+0x235/0x3c0 [atlantic] aq_pci_probe+0x731/0x9b0 [atlantic] ? aq_pci_func_init+0xc0/0xc0 [atlantic] local_pci_probe+0xd3/0x160 pci_device_probe+0x23f/0x3e0 Reported-by: Brendan Dolan-Gavitt <[email protected]> Signed-off-by: Zekun Shen <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-15net: bnx2x: fix variable dereferenced before checkPavel Skripkin1-1/+3
Smatch says: bnx2x_init_ops.h:640 bnx2x_ilt_client_mem_op() warn: variable dereferenced before check 'ilt' (see line 638) Move ilt_cli variable initialization _after_ ilt validation, because it's unsafe to deref the pointer before validation check. Fixes: 523224a3b3cd ("bnx2x, cnic, bnx2i: use new FW/HSI") Signed-off-by: Pavel Skripkin <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-15selftests: gpio: restore CFLAGS optionsKent Gibson1-1/+1
All the CFLAGS options were incorrectly removed in the recent rework of the GPIO selftests. While some of the flags were specific to the old implementation the remainder are still relevant. Restore those options. Signed-off-by: Kent Gibson <[email protected]> Signed-off-by: Bartosz Golaszewski <[email protected]>
2021-11-15selftests: gpio: fix uninitialised variable warningKent Gibson1-1/+1
When compiled with -Wall gpio-mockup-cdev.c reports an uninitialised variable warning. This is a false positive, as the variable is ignored in the case it is uninitialised, but initialise the variable anyway to remove the warning. Signed-off-by: Kent Gibson <[email protected]> Signed-off-by: Bartosz Golaszewski <[email protected]>
2021-11-15selftests: gpio: fix gpio compiling errorLi Zhijian1-0/+1
The gpio selftests build against the system includes rather than the headers from the linux tree. This results in the compile failing if the system includes are outdated. Prefer the headers from the linux tree, as per other selftests. Fixes: 8bc395a6a2e2 ("selftests: gpio: rework and simplify test implementation") Reported-by: kernel test robot <[email protected]> Signed-off-by: Li Zhijian <[email protected]> [Kent: reworded commit comment and added Fixes:] Signed-off-by: Kent Gibson <[email protected]> Signed-off-by: Bartosz Golaszewski <[email protected]>
2021-11-15net/smc: Transfer remaining wait queue entries during fallbackWen Gu1-0/+14
The SMC fallback is incomplete currently. There may be some wait queue entries remaining in smc socket->wq, which should be removed to clcsocket->wq during the fallback. For example, in nginx/wrk benchmark, this issue causes an all-zeros test result: server: nginx -g 'daemon off;' client: smc_run wrk -c 1 -t 1 -d 5 http://11.200.15.93/index.html Running 5s test @ http://11.200.15.93/index.html 1 threads and 1 connections Thread Stats Avg Stdev Max ± Stdev Latency 0.00us 0.00us 0.00us -nan% Req/Sec 0.00 0.00 0.00 -nan% 0 requests in 5.00s, 0.00B read Requests/sec: 0.00 Transfer/sec: 0.00B The reason for this all-zeros result is that when wrk used SMC to replace TCP, it added an eppoll_entry into smc socket->wq and expected to be notified if epoll events like EPOLL_IN/ EPOLL_OUT occurred on the smc socket. However, once a fallback occurred, wrk switches to use clcsocket. Now it is clcsocket->wq instead of smc socket->wq which will be woken up. The eppoll_entry remaining in smc socket->wq does not work anymore and wrk stops the test. This patch fixes this issue by removing remaining wait queue entries from smc socket->wq to clcsocket->wq during the fallback. Link: https://www.spinics.net/lists/netdev/msg779769.html Signed-off-by: Wen Gu <[email protected]> Reviewed-by: Tony Lu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-15Merge branch 'net-ipa-fixes'David S. Miller1-0/+5
Alex Elder says: ==================== net: ipa: HOLB register write fixes This small series fixes two recently identified bugs related to the way two registers must be written. The registers define whether and when to drop packets if a head-of-line blocking condition is encountered. The "enable" (dropping packets) register must be written twice for newer versions of hardware. And the timer register must not be written while dropping is enabled. ==================== Signed-off-by: David S. Miller <[email protected]>
2021-11-15net: ipa: disable HOLB drop when updating timerAlex Elder1-0/+2
The head-of-line blocking timer should only be modified when head-of-line drop is disabled. One of the steps in recovering from a modem crash is to enable dropping of packets with timeout of 0 (immediate). We don't know how the modem configured its endpoints, so before we program the timer, we need to ensure HOL_BLOCK is disabled. Fixes: 84f9bd12d46db ("soc: qcom: ipa: IPA endpoints") Signed-off-by: Alex Elder <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-15net: ipa: HOLB register sometimes must be written twiceAlex Elder1-0/+3
Starting with IPA v4.5, the HOL_BLOCK_EN register must be written twice when enabling head-of-line blocking avoidance. Fixes: 84f9bd12d46db ("soc: qcom: ipa: IPA endpoints") Signed-off-by: Alex Elder <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-15gpio: virtio: remove unneeded semicolonYang Li1-1/+1
Eliminate the following coccicheck warning: ./drivers/gpio/gpio-virtio.c:437:2-3: Unneeded semicolon Reported-by: Abaci Robot <[email protected]> Signed-off-by: Yang Li <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Bartosz Golaszewski <[email protected]>
2021-11-15net: Clean up some inconsistent indentingJiapeng Chong1-1/+1
Eliminate the follow smatch warning: ./include/linux/skbuff.h:4229 skb_remcsum_process() warn: inconsistent indenting. Reported-by: Abaci Robot <[email protected]> Signed-off-by: Jiapeng Chong <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-15tun: fix bonding active backup with arp monitoringNicolas Dichtel1-0/+5
As stated in the bonding doc, trans_start must be set manually for drivers using NETIF_F_LLTX: Drivers that use NETIF_F_LLTX flag must also update netdev_queue->trans_start. If they do not, then the ARP monitor will immediately fail any slaves using that driver, and those slaves will stay down. Link: https://www.kernel.org/doc/html/v5.15/networking/bonding.html#arp-monitor-operation Signed-off-by: Nicolas Dichtel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-15tipc: use consistent GFP flagsTadeusz Struk1-4/+4
Some functions, like tipc_crypto_start use inconsisten GFP flags when allocating memory. The mentioned function use GFP_ATOMIC to to alloc a crypto instance, and then calls alloc_ordered_workqueue() which allocates memory with GFP_KERNEL. tipc_aead_init() function even uses GFP_KERNEL and GFP_ATOMIC interchangeably. No doc comment specifies what context a function is designed to work in, but the flags should at least be consistent within a function. Cc: Jon Maloy <[email protected]> Cc: Ying Xue <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jakub Kicinski <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Tadeusz Struk <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-15x86/hyperv: Move required MSRs check to initial platform probingSean Christopherson2-13/+16
Explicitly check for MSR_HYPERCALL and MSR_VP_INDEX support when probing for running as a Hyper-V guest instead of waiting until hyperv_init() to detect the bogus configuration. Add messages to give the admin a heads up that they are likely running on a broken virtual machine setup. At best, silently disabling Hyper-V is confusing and difficult to debug, e.g. the kernel _says_ it's using all these fancy Hyper-V features, but always falls back to the native versions. At worst, the half baked setup will crash/hang the kernel. Reviewed-by: Vitaly Kuznetsov <[email protected]> Signed-off-by: Sean Christopherson <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Wei Liu <[email protected]>
2021-11-15x86/hyperv: Fix NULL deref in set_hv_tscchange_cb() if Hyper-V setup failsSean Christopherson1-0/+3
Check for a valid hv_vp_index array prior to derefencing hv_vp_index when setting Hyper-V's TSC change callback. If Hyper-V setup failed in hyperv_init(), the kernel will still report that it's running under Hyper-V, but will have silently disabled nearly all functionality. BUG: kernel NULL pointer dereference, address: 0000000000000010 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 4 PID: 1 Comm: swapper/0 Not tainted 5.15.0-rc2+ #75 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:set_hv_tscchange_cb+0x15/0xa0 Code: <8b> 04 82 8b 15 12 17 85 01 48 c1 e0 20 48 0d ee 00 01 00 f6 c6 08 ... Call Trace: kvm_arch_init+0x17c/0x280 kvm_init+0x31/0x330 vmx_init+0xba/0x13a do_one_initcall+0x41/0x1c0 kernel_init_freeable+0x1f2/0x23b kernel_init+0x16/0x120 ret_from_fork+0x22/0x30 Fixes: 93286261de1b ("x86/hyperv: Reenlightenment notifications support") Cc: [email protected] Cc: Vitaly Kuznetsov <[email protected]> Signed-off-by: Sean Christopherson <[email protected]> Reviewed-by: Vitaly Kuznetsov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Wei Liu <[email protected]>
2021-11-15Drivers: hv: balloon: Use VMBUS_RING_SIZE() wrapper for dm_ring_sizeBoqun Feng1-1/+1
Baihua reported an error when boot an ARM64 guest with PAGE_SIZE=64k and BALLOON is enabled: hv_vmbus: registering driver hv_balloon hv_vmbus: probe failed for device 1eccfd72-4b41-45ef-b73a-4a6e44c12924 (-22) The cause of this is that the ringbuffer size for hv_balloon is not adjusted with VMBUS_RING_SIZE(), which makes the size not large enough for ringbuffers on guest with PAGE_SIZE=64k. Therefore use VMBUS_RING_SIZE() to calculate the ringbuffer size. Note that the old size (20 * 1024) counts a 4k header in the total size, while VMBUS_RING_SIZE() expects the parameter as the payload size, so use 16 * 1024. Cc: <[email protected]> # 5.15.x Reported-by: Baihua Lu <[email protected]> Signed-off-by: Boqun Feng <[email protected]> Tested-by: Vitaly Kuznetsov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Wei Liu <[email protected]>
2021-11-15mac80211: fix throughput LED triggerFelix Fietkau3-26/+23
The codepaths for rx with decap offload and tx with itxq were not updating the counters for the throughput led trigger. Signed-off-by: Felix Fietkau <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Johannes Berg <[email protected]>
2021-11-15mac80211: fix monitor_sdata RCU/locking assertionsJohannes Berg3-8/+15
Since commit a05829a7222e ("cfg80211: avoid holding the RTNL when calling the driver") we've not only been protecting the pointer to monitor_sdata with the RTNL, but also with the wiphy->mtx. This is relevant in a number of lockdep assertions, e.g. the one we hit in ieee80211_set_monitor_channel(). However, we're now protecting all the assignments/dereferences, even the one in interface iter, with the wiphy->mtx, so switch over the lockdep assertions to that lock. Fixes: a05829a7222e ("cfg80211: avoid holding the RTNL when calling the driver") Signed-off-by: Johannes Berg <[email protected]> Link: https://lore.kernel.org/r/20211112135143.cb8e8ceffef3.Iaa210f16f6904c8a7a24954fb3396da0ef86ec08@changeid Signed-off-by: Johannes Berg <[email protected]>
2021-11-15mac80211: drop check for DONT_REORDER in __ieee80211_select_queueFelix Fietkau1-2/+1
When __ieee80211_select_queue is called, skb->cb has not been cleared yet, which means that info->control.flags can contain garbage. In some cases this leads to IEEE80211_TX_CTRL_DONT_REORDER being set, causing packets marked for other queues to randomly end up in BE instead. This flag only needs to be checked in ieee80211_select_queue_80211, since the radiotap parser is the only piece of code that sets it Fixes: 66d06c84730c ("mac80211: adhere to Tx control flag that prevents frame reordering") Cc: [email protected] Signed-off-by: Felix Fietkau <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Johannes Berg <[email protected]>
2021-11-15mac80211: fix radiotap header generationJohannes Berg1-1/+1
In commit 8c89f7b3d3f2 ("mac80211: Use flex-array for radiotap header bitmap") we accidentally pointed the position to the wrong place, so we overwrite a present bitmap, and thus cause all kinds of trouble. To see the issue, note that the previous code read: pos = (void *)(it_present + 1); The requirement now is that we need to calculate pos via it_optional, to not trigger the compiler hardening checks, as: pos = (void *)&rthdr->it_optional[...]; Rewriting the original expression, we get (obviously, since that just adds "+ x - x" terms): pos = (void *)(it_present + 1 + rthdr->it_optional - rthdr->it_optional) and moving the "+ rthdr->it_optional" outside to be used as an array: pos = (void *)&rthdr->it_optional[it_present + 1 - rthdr->it_optional]; The original is off by one, fix it. Cc: [email protected] Fixes: 8c89f7b3d3f2 ("mac80211: Use flex-array for radiotap header bitmap") Reported-by: Sid Hayn <[email protected]> Signed-off-by: Johannes Berg <[email protected]> Tested-by: Sid Hayn <[email protected]> Reviewed-by: Kees Cook <[email protected]> Link: https://lore.kernel.org/r/20211109100203.c61007433ed6.I1dade57aba7de9c4f48d68249adbae62636fd98c@changeid Signed-off-by: Johannes Berg <[email protected]>
2021-11-15docs: filesystems: Fix grammatical error "with" to "which"Wasin Thonkaew1-1/+1
Signed-off-by: Wasin Thonkaew <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2021-11-15mac80211: do not access the IV when it was strippedXing Song1-1/+2
ieee80211_get_keyid() will return false value if IV has been stripped, such as return 0 for IP/ARP frames due to LLC header, and return -EINVAL for disassociation frames due to its length... etc. Don't try to access it if it's not present. Signed-off-by: Xing Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Johannes Berg <[email protected]>
2021-11-15doc/zh_CN: fix a translation error in management-styleAlex Shi1-2/+2
'The name of the game' means the most important part of an activity, so we should translate it by the meaning instead of the words. Suggested-by: Xinyong Wang <[email protected]> Signed-off-by: Alex Shi <[email protected]> Reviewed-by: Yanteng Si <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2021-11-15drm/sun4i: fix unmet dependency on RESET_CONTROLLER for PHY_SUN6I_MIPI_DPHYJulian Braha1-0/+1
When PHY_SUN6I_MIPI_DPHY is selected, and RESET_CONTROLLER is not selected, Kbuild gives the following warning: WARNING: unmet direct dependencies detected for PHY_SUN6I_MIPI_DPHY Depends on [n]: (ARCH_SUNXI [=n] || COMPILE_TEST [=y]) && HAS_IOMEM [=y] && COMMON_CLK [=y] && RESET_CONTROLLER [=n] Selected by [y]: - DRM_SUN6I_DSI [=y] && HAS_IOMEM [=y] && DRM_SUN4I [=y] This is because DRM_SUN6I_DSI selects PHY_SUN6I_MIPI_DPHY without selecting or depending on RESET_CONTROLLER, despite PHY_SUN6I_MIPI_DPHY depending on RESET_CONTROLLER. These unmet dependency bugs were detected by Kismet, a static analysis tool for Kconfig. Please advise if this is not the appropriate solution. v2: Fixed indentation to match the rest of the file. Signed-off-by: Julian Braha <[email protected]> Acked-by: Jernej Skrabec <[email protected]> Signed-off-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-11-15nl80211: fix radio statistics in survey dumpJohannes Berg2-20/+20
Even if userspace specifies the NL80211_ATTR_SURVEY_RADIO_STATS attribute, we cannot get the statistics because we're not really parsing the incoming attributes properly any more. Fix this by passing the attrbuf to nl80211_prepare_wdev_dump() and filling it there, if given, and using a local version only if no output is desired. Since I'm touching it anyway, make nl80211_prepare_wdev_dump() static. Fixes: 50508d941c18 ("cfg80211: use parallel_ops for genl") Reported-by: Jan Fuchs <[email protected]> Signed-off-by: Johannes Berg <[email protected]> Tested-by: Sven Eckelmann <[email protected]> Link: https://lore.kernel.org/r/20211029092539.2851b4799386.If9736d4575ee79420cbec1bd930181e1d53c7317@changeid Signed-off-by: Johannes Berg <[email protected]>
2021-11-15cfg80211: call cfg80211_stop_ap when switch from P2P_GO typeNguyen Dinh Phi1-0/+1
If the userspace tools switch from NL80211_IFTYPE_P2P_GO to NL80211_IFTYPE_ADHOC via send_msg(NL80211_CMD_SET_INTERFACE), it does not call the cleanup cfg80211_stop_ap(), this leads to the initialization of in-use data. For example, this path re-init the sdata->assigned_chanctx_list while it is still an element of assigned_vifs list, and makes that linked list corrupt. Signed-off-by: Nguyen Dinh Phi <[email protected]> Reported-by: [email protected] Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Fixes: ac800140c20e ("cfg80211: .stop_ap when interface is going down") Signed-off-by: Johannes Berg <[email protected]>
2021-11-15docs: ftrace: fix the wrong path of tracefsZhaoyu Liu1-5/+4
Delete "tracing" due to it has been included in /proc/mounts. Delete "echo nop > $tracefs/tracing/current_tracer", maybe this command is redundant. Signed-off-by: Zhaoyu Liu <[email protected]> Acked-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2021-11-15Documentation: arm: marvell: Fix link to armada_1000_pb.pdf documentPali Rohár1-1/+1
File armada_1000_pb.pdf is not available on Marvell website anymore. So update link to webarchive where is backup copy. Signed-off-by: Pali Rohár <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2021-11-15Documentation: arm: marvell: Put Armada XP section between Armada 370 and 375Pali Rohár1-26/+19
From evolution and feature point of view Armada XP belongs between Armada 370 and Armada 375 families. Signed-off-by: Pali Rohár <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2021-11-15Documentation: arm: marvell: Add some links to homepage / product infosPali Rohár1-0/+7
Webarchive contains some useful resources like product info or links to other documents. Signed-off-by: Pali Rohár <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2021-11-15docs: Update Sphinx requirementsAkira Yokosawa5-41/+29
Commit f546ff0c0c07 ("Move our minimum Sphinx version to 1.7") raised the minimum version to 1.7. For pdfdocs, sphinx_pre_install says: note: If you want pdf, you need at least Sphinx 2.4.4. , and current requirements.txt installs Sphinx 2.4.4. Update Sphinx versions mentioned in docs and remove a note on earlier Sphinx versions. Update zh_CN and it_IT translations as well. Signed-off-by: Akira Yokosawa <[email protected]> Cc: Federico Vaga <[email protected]> Cc: Alex Shi <[email protected]> Reviewed-by: Alex Shi <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2021-11-15drm/cma-helper: Release non-coherent memory with dma_free_noncoherent()Thomas Zimmermann1-2/+7
The GEM CMA helpers allocate non-coherent (i.e., cached) backing storage with dma_alloc_noncoherent(), but release it with dma_free_wc(). Fix this with a call to dma_free_noncoherent(). Writecombining storage is still released with dma_free_wc(). Signed-off-by: Thomas Zimmermann <[email protected]> Fixes: cf8ccbc72d61 ("drm: Add support for GEM buffers backed by non-coherent memory") Acked-by: Paul Cercueil <[email protected]> Cc: Thomas Zimmermann <[email protected]> Cc: Maarten Lankhorst <[email protected]> Cc: Maxime Ripard <[email protected]> Cc: David Airlie <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: [email protected] Cc: <[email protected]> # v5.14+ Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-11-14Merge tag 'trace-v5.16-5' of ↵Linus Torvalds2-3/+8
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "Update to tracing histogram variable string copy A fix to only copy the size of the field to the histogram string did not take into account that the size can be larger than the storage" * tag 'trace-v5.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Add length protection to histogram string copies
2021-11-14kbuild: Fix -Wimplicit-fallthrough=5 error for GCC 5.x and 6.xGustavo A. R. Silva1-1/+1
-Wimplicit-fallthrough=5 was under cc-option because it was only available in GCC 7.x and newer so the build is now broken for GCC 5.x and 6.x: gcc: error: unrecognized command line option '-Wimplicit-fallthrough=5'; did you mean '-Wno-fallthrough'? Fix this by moving -Wimplicit-fallthrough=5 under cc-option. Fixes: dee2b702bcf0 ("kconfig: Add support for -Wimplicit-fallthrough") Reported-by: Nathan Chancellor <[email protected]> Co-developed-by: Nathan Chancellor <[email protected]> Signed-off-by: Nathan Chancellor <[email protected]> Signed-off-by: Gustavo A. R. Silva <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-14tracing: Add length protection to histogram string copiesSteven Rostedt (VMware)2-3/+8
The string copies to the histogram storage has a max size of 256 bytes (defined by MAX_FILTER_STR_VAL). Only the string size of the event field needs to be copied to the event storage, but no more than what is in the event storage. Although nothing should be bigger than 256 bytes, there's no protection against overwriting of the storage if one day there is. Copy no more than the destination size, and enforce it. Also had to turn MAX_FILTER_STR_VAL into an unsigned int, to keep the min() comparison of the string sizes of comparable types. Link: https://lore.kernel.org/all/CAHk-=wjREUihCGrtRBwfX47y_KrLCGjiq3t6QtoNJpmVrAEb1w@mail.gmail.com/ Link: https://lkml.kernel.org/r/[email protected] Cc: Ingo Molnar <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Tom Zanussi <[email protected]> Reported-by: Linus Torvalds <[email protected]> Reviewed-by: Masami Hiramatsu <[email protected]> Fixes: 63f84ae6b82b ("tracing/histogram: Do not copy the fixed-size char array field over the field size") Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-11-14Linux 5.16-rc1Linus Torvalds1-2/+2
2021-11-14kconfig: Add support for -Wimplicit-fallthroughGustavo A. R. Silva2-5/+6
Add Kconfig support for -Wimplicit-fallthrough for both GCC and Clang. The compiler option is under configuration CC_IMPLICIT_FALLTHROUGH, which is enabled by default. Special thanks to Nathan Chancellor who fixed the Clang bug[1][2]. This bugfix only appears in Clang 14.0.0, so older versions still contain the bug and -Wimplicit-fallthrough won't be enabled for them, for now. This concludes a long journey and now we are finally getting rid of the unintentional fallthrough bug-class in the kernel, entirely. :) Link: https://github.com/llvm/llvm-project/commit/9ed4a94d6451046a51ef393cd62f00710820a7e8 [1] Link: https://bugs.llvm.org/show_bug.cgi?id=51094 [2] Link: https://github.com/KSPP/linux/issues/115 Link: https://github.com/ClangBuiltLinux/linux/issues/236 Co-developed-by: Kees Cook <[email protected]> Signed-off-by: Kees Cook <[email protected]> Co-developed-by: Linus Torvalds <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: Gustavo A. R. Silva <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Tested-by: Nathan Chancellor <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-14Merge tag 'xfs-5.16-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds4-7/+12
Pull xfs cleanups from Darrick Wong: "The most 'exciting' aspect of this branch is that the xfsprogs maintainer and I have worked through the last of the code discrepancies between kernel and userspace libxfs such that there are no code differences between the two except for #includes. IOWs, diff suffices to demonstrate that the userspace tools behave the same as the kernel, and kernel-only bits are clearly marked in the /kernel/ source code instead of just the userspace source. Summary: - Clean up open-coded swap() calls. - A little bit of #ifdef golf to complete the reunification of the kernel and userspace libxfs source code" * tag 'xfs-5.16-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: sync xfs_btree_split macros with userspace libxfs xfs: #ifdef out perag code for userspace xfs: use swap() to make dabtree code cleaner
2021-11-14Merge tag 'for-5.16/parisc-3' of ↵Linus Torvalds5-6/+14
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull more parisc fixes from Helge Deller: "Fix a build error in stracktrace.c, fix resolving of addresses to function names in backtraces, fix single-stepping in assembly code and flush userspace pte's when using set_pte_at()" * tag 'for-5.16/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc/entry: fix trace test in syscall exit path parisc: Flush kernel data mapping in set_pte_at() when installing pte for user page parisc: Fix implicit declaration of function '__kernel_text_address' parisc: Fix backtrace to always include init funtion names
2021-11-14Merge tag 'sh-for-5.16' of git://git.libc.org/linux-shLinus Torvalds21-180/+78
Pull arch/sh updates from Rich Felker. * tag 'sh-for-5.16' of git://git.libc.org/linux-sh: sh: pgtable-3level: Fix cast to pointer from integer of different size sh: fix READ/WRITE redefinition warnings sh: define __BIG_ENDIAN for math-emu sh: math-emu: drop unused functions sh: fix kconfig unmet dependency warning for FRAME_POINTER sh: Cleanup about SPARSE_IRQ sh: kdump: add some attribute to function maple: fix wrong return value of maple_bus_init(). sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/ sh: boot: add intermediate vmlinux.bin* to targets instead of extra-y sh: boards: Fix the cacography in irq.c sh: check return code of request_irq sh: fix trivial misannotations
2021-11-14Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds2-13/+13
Pull ARM fixes from Russell King: - Fix early_iounmap - Drop cc-option fallbacks for architecture selection * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9156/1: drop cc-option fallbacks for architecture selection ARM: 9155/1: fix early early_iounmap()
2021-11-14Merge tag 'devicetree-fixes-for-5.16-1' of ↵Linus Torvalds107-277/+277
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes from Rob Herring: - Two fixes due to DT node name changes on Arm, Ltd. boards - Treewide rename of Ingenic CGU headers - Update ST email addresses - Remove Netlogic DT bindings - Dropping few more cases of redundant 'maxItems' in schemas - Convert toshiba,tc358767 bridge binding to schema * tag 'devicetree-fixes-for-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt-bindings: watchdog: sunxi: fix error in schema bindings: media: venus: Drop redundant maxItems for power-domain-names dt-bindings: Remove Netlogic bindings clk: versatile: clk-icst: Ensure clock names are unique of: Support using 'mask' in making device bus id dt-bindings: treewide: Update @st.com email address to @foss.st.com dt-bindings: media: Update maintainers for st,stm32-hwspinlock.yaml dt-bindings: media: Update maintainers for st,stm32-cec.yaml dt-bindings: mfd: timers: Update maintainers for st,stm32-timers dt-bindings: timer: Update maintainers for st,stm32-timer dt-bindings: i2c: imx: hardware do not restrict clock-frequency to only 100 and 400 kHz dt-bindings: display: bridge: Convert toshiba,tc358767.txt to yaml dt-bindings: Rename Ingenic CGU headers to ingenic,*.h
2021-11-14Merge tag 'timers-urgent-2021-11-14' of ↵Linus Torvalds3-2/+20
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Thomas Gleixner: "A single fix for POSIX CPU timers to address a problem where POSIX CPU timer delivery stops working for a new child task because copy_process() copies state information which is only valid for the parent task" * tag 'timers-urgent-2021-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: posix-cpu-timers: Clear task::posix_cputimers_work in copy_process()
2021-11-14Merge tag 'irq-urgent-2021-11-14' of ↵Linus Torvalds8-28/+60
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "A set of fixes for the interrupt subsystem Core code: - A regression fix for the Open Firmware interrupt mapping code where a interrupt controller property in a node caused a map property in the same node to be ignored. Interrupt chip drivers: - Workaround a limitation in SiFive PLIC interrupt chip which silently ignores an EOI when the interrupt line is masked. - Provide the missing mask/unmask implementation for the CSKY MP interrupt controller. PCI/MSI: - Prevent a use after free when PCI/MSI interrupts are released by destroying the sysfs entries before freeing the memory which is accessed in the sysfs show() function. - Implement a mask quirk for the Nvidia ION AHCI chip which does not advertise masking capability despite implementing it. Even worse the chip comes out of reset with all MSI entries masked, which due to the missing masking capability never get unmasked. - Move the check which prevents accessing the MSI[X] masking for XEN back into the low level accessors. The recent consolidation missed that these accessors can be invoked from places which do not have that check which broke XEN. Move them back to he original place instead of sprinkling tons of these checks all over the code" * tag 'irq-urgent-2021-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: of/irq: Don't ignore interrupt-controller when interrupt-map failed irqchip/sifive-plic: Fixup EOI failed when masked irqchip/csky-mpintc: Fixup mask/unmask implementation PCI/MSI: Destroy sysfs before freeing entries PCI: Add MSI masking quirk for Nvidia ION AHCI PCI/MSI: Deal with devices lying about their MSI mask capability PCI/MSI: Move non-mask check back into low level accessors
2021-11-14Merge tag 'locking-urgent-2021-11-14' of ↵Linus Torvalds3-4/+14
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 static call update from Thomas Gleixner: "A single fix for static calls to make the trampoline patching more robust by placing explicit signature bytes after the call trampoline to prevent patching random other jumps like the CFI jump table entries" * tag 'locking-urgent-2021-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: static_call,x86: Robustify trampoline patching
2021-11-14Merge tag 'sched_urgent_for_v5.16_rc1' of ↵Linus Torvalds13-59/+96
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Borislav Petkov: - Avoid touching ~100 config files in order to be able to select the preemption model - clear cluster CPU masks too, on the CPU unplug path - prevent use-after-free in cfs - Prevent a race condition when updating CPU cache domains - Factor out common shared part of smp_prepare_cpus() into a common helper which can be called by both baremetal and Xen, in order to fix a booting of Xen PV guests * tag 'sched_urgent_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: preempt: Restore preemption model selection configs arch_topology: Fix missing clear cluster_cpumask in remove_cpu_topology() sched/fair: Prevent dead task groups from regaining cfs_rq's sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain() x86/smp: Factor out parts of native_smp_prepare_cpus()
2021-11-14Merge tag 'perf_urgent_for_v5.16_rc1' of ↵Linus Torvalds3-6/+10
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Borislav Petkov: - Prevent unintentional page sharing by checking whether a page reference to a PMU samples page has been acquired properly before that - Make sure the LBR_SELECT MSR is saved/restored too - Reset the LBR_SELECT MSR when resetting the LBR PMU to clear any residual data left * tag 'perf_urgent_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Avoid put_page() when GUP fails perf/x86/vlbr: Add c->flags to vlbr event constraints perf/x86/lbr: Reset LBR_SELECT during vlbr reset
2021-11-14Merge tag 'x86_urgent_for_v5.16_rc1' of ↵Linus Torvalds8-4/+71
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Add the model number of a new, Raptor Lake CPU, to intel-family.h - Do not log spurious corrected MCEs on SKL too, due to an erratum - Clarify the path of paravirt ops patches upstream - Add an optimization to avoid writing out AMX components to sigframes when former are in init state * tag 'x86_urgent_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Add Raptor Lake to Intel family x86/mce: Add errata workaround for Skylake SKX37 MAINTAINERS: Add some information to PARAVIRT_OPS entry x86/fpu: Optimize out sigframe xfeatures when in init state
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