- 27 Jan, 2020 40 commits
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Dan Robertson authored
[ Upstream commit fdc7d8e8 ] Fix an error in the bitmaskfor the shtc1 and shtw1 bitmask used to retrieve the chip ID from the ID register. See section 5.7 of the shtw1 or shtc1 datasheet for details. Fixes: 1a539d37 ("hwmon: add support for Sensirion SHTC1 sensor") Signed-off-by:
Dan Robertson <dan@dlrobertson.com> Link: https://lore.kernel.org/r/20190905014554.21658-3-dan@dlrobertson.com [groeck: Reordered to be first in series and adjusted accordingly] Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Firo Yang authored
[ Upstream commit e7ba676c ] In Xen environment, if Xen-swiotlb is enabled, ixgbe driver could possibly allocate a page, DMA memory buffer, for the first fragment which is not suitable for Xen-swiotlb to do DMA operations. Xen-swiotlb have to internally allocate another page for doing DMA operations. This mechanism requires syncing the data from the internal page to the page which ixgbe sends to upper network stack. However, since commit f3213d93 ("ixgbe: Update driver to make use of DMA attributes in Rx path"), the unmap operation is performed with DMA_ATTR_SKIP_CPU_SYNC. As a result, the sync is not performed. Since the sync isn't performed, the upper network stack could receive a incomplete network packet. By incomplete, it means the linear data on the first fragment(between skb->head and skb->end) is invalid. So we have to copy the data from the internal xen-swiotlb page to the page which ixgbe sends to upper network stack through the sync operation. More details from Alexander Duyck: Specifically since we are mapping the frame with DMA_ATTR_SKIP_CPU_SYNC we have to unmap with that as well. As a result a sync is not performed on an unmap and must be done manually as we skipped it for the first frag. As such we need to always sync before possibly performing a page unmap operation. Fixes: f3213d93 ("ixgbe: Update driver to make use of DMA attributes in Rx path") Signed-off-by:
Firo Yang <firo.yang@suse.com> Reviewed-by:
Alexander Duyck <alexander.h.duyck@linux.intel.com> Tested-by:
Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Omar Sandoval authored
[ Upstream commit c09767a8 ] generic_write_checks() may modify iov_iter_count(), so we must get the count after the call, not before. Using the wrong one has a couple of consequences: 1. We check a longer range in check_can_nocow() for nowait than we're actually writing. 2. We create extra hole extent maps in btrfs_cont_expand(). As far as I can tell, this is harmless, but I might be missing something. These issues are pretty minor, but let's fix it before something more important trips on it. Fixes: edf064e7 ("btrfs: nowait aio support") Reviewed-by:
Josef Bacik <josef@toxicpanda.com> Signed-off-by:
Omar Sandoval <osandov@fb.com> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
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Filipe Manana authored
[ Upstream commit 9d123a35 ] If the caching thread fails to allocate a path, it returns without waking up any cache waiters, leaving them hang forever. Fix this by following the same approach as when we fail to start the caching thread: print an error message, disable inode caching and make the wakers fallback to non-caching mode behaviour (calling btrfs_find_free_objectid()). Fixes: 581bb050 ("Btrfs: Cache free inode numbers in memory") Reviewed-by:
Nikolay Borisov <nborisov@suse.com> Signed-off-by:
Filipe Manana <fdmanana@suse.com> Signed-off-by:
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Filipe Manana authored
[ Upstream commit a68ebe07 ] If we fail to start the inode caching thread, we print an error message and disable the inode cache, however we never wake up any waiters, so they hang forever waiting for the caching to finish. Fix this by waking them up and have them fallback to a call to btrfs_find_free_objectid(). Fixes: e60efa84 ("Btrfs: avoid triggering bug_on() when we fail to start inode caching task") Reviewed-by:
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Filipe Manana authored
[ Upstream commit 7764d56b ] If we are able to load an existing inode cache off disk, we set the state of the cache to BTRFS_CACHE_FINISHED, but we don't wake up any one waiting for the cache to be available. This means that anyone waiting for the cache to be available, waiting on the condition that either its state is BTRFS_CACHE_FINISHED or its available free space is greather than zero, can hang forever. This could be observed running fstests with MOUNT_OPTIONS="-o inode_cache", in particular test case generic/161 triggered it very frequently for me, producing a trace like the following: [63795.739712] BTRFS info (device sdc): enabling inode map caching [63795.739714] BTRFS info (device sdc): disk space caching is enabled [63795.739716] BTRFS info (device sdc): has skinny extents [64036.653886] INFO: task btrfs-transacti:3917 blocked for more than 120 seconds. [64036.654079] Not tainted 5.2.0-rc4-btrfs-next-50 #1 [64036.654143] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [64036.654232] btrfs-transacti D 0 3917 2 0x80004000 [64036.654239] Call Trace: [64036.654258] ? __schedule+0x3ae/0x7b0 [64036.654271] schedule+0x3a/0xb0 [64036.654325] btrfs_commit_transaction+0x978/0xae0 [btrfs] [64036.654339] ? remove_wait_queue+0x60/0x60 [64036.654395] transaction_kthread+0x146/0x180 [btrfs] [64036.654450] ? btrfs_cleanup_transaction+0x620/0x620 [btrfs] [64036.654456] kthread+0x103/0x140 [64036.654464] ? kthread_create_worker_on_cpu+0x70/0x70 [64036.654476] ret_from_fork+0x3a/0x50 [64036.654504] INFO: task xfs_io:3919 blocked for more than 120 seconds. [64036.654568] Not tainted 5.2.0-rc4-btrfs-next-50 #1 [64036.654617] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [64036.654685] xfs_io D 0 3919 3633 0x00000000 [64036.654691] Call Trace: [64036.654703] ? __schedule+0x3ae/0x7b0 [64036.654716] schedule+0x3a/0xb0 [64036.654756] btrfs_find_free_ino+0xa9/0x120 [btrfs] [64036.654764] ? remove_wait_queue+0x60/0x60 [64036.654809] btrfs_create+0x72/0x1f0 [btrfs] [64036.654822] lookup_open+0x6bc/0x790 [64036.654849] path_openat+0x3bc/0xc00 [64036.654854] ? __lock_acquire+0x331/0x1cb0 [64036.654869] do_filp_open+0x99/0x110 [64036.654884] ? __alloc_fd+0xee/0x200 [64036.654895] ? do_raw_spin_unlock+0x49/0xc0 [64036.654909] ? do_sys_open+0x132/0x220 [64036.654913] do_sys_open+0x132/0x220 [64036.654926] do_syscall_64+0x60/0x1d0 [64036.654933] entry_SYSCALL_64_after_hwframe+0x49/0xbe Fix this by adding a wake_up() call right after setting the cache state to BTRFS_CACHE_FINISHED, at start_caching(), when we are able to load the cache from disk. Fixes: 82d5902d ("Btrfs: Support reading/writing on disk free ino cache") Reviewed-by:
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Govindarajulu Varadarajan authored
[ Upstream commit 3ec24fb4 ] pci_alloc_irq_vectors() returns number of vectors allocated. Fix the check for error condition. Fixes: cca678df ("scsi: fnic: switch to pci_alloc_irq_vectors") Link: https://lore.kernel.org/r/20190827211340.1095-1-gvaradar@cisco.comSigned-off-by:
Govindarajulu Varadarajan <gvaradar@cisco.com> Acked-by:
Satish Kharat <satishkh@cisco.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
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Chao Yu authored
[ Upstream commit e8c82c11 ] In error path of f2fs_convert_inline_page(), we missed to truncate newly reserved block in .i_addrs[0] once we failed in get_node_info(), fix it. Fixes: 7735730d ("f2fs: fix to propagate error from __get_meta_page()") Signed-off-by:
Chao Yu <yuchao0@huawei.com> Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by:
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Chao Yu authored
[ Upstream commit 9ea2f0be ] If FAULT_BLOCK type error injection is on, in inc_valid_block_count() we may decrease sbi->alloc_valid_block_count percpu stat count incorrectly, fix it. Fixes: 36b877af ("f2fs: Keep alloc_valid_block_count in sync") Signed-off-by:
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Adam Ford authored
[ Upstream commit a932b77b ] When the pinmux configuration was added, it was accidentally placed into the omap3_pmx_wkup node when it should have been placed into the omap3_pmx_core. This error was accidentally propagated to stable by me when I blindly requested the pull after seeing I2C issues without actually reviewing the content of the pinout. Since the bootloader previously muxed these correctly in the past, was a hidden error. This patch moves the i2c2_pins and i2c3_pins to the correct node which should eliminate i2c bus errors and timeouts due to the fact the bootloader uses the save device tree that no longer properly assigns these pins. Fixes: 5fe3c0fa ("ARM: dts: Add pinmuxing for i2c2 and i2c3 for LogicPD SOM-LV") #4.9+ Signed-off-by:
Adam Ford <aford173@gmail.com> Signed-off-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
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Wei Yongjun authored
[ Upstream commit 4c3e4879 ] When using single_open() for opening, single_release() should be used instead of seq_release(), otherwise there is a memory leak. This is detected by Coccinelle semantic patch. Fixes: 610247f4 ("rtlwifi: Improve debugging by using debugfs") Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Signed-off-by:
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Jian Shen authored
[ Upstream commit d9c0f275 ] In original codes, the VF index used incorrectly in function hclge_set_vlan_rx_offload_cfg() and hclge_set_vlan_rx_offload_cfg(). When VF id is greater than 8, for example 9, it will set the same bit with VF id 1. This patch fixes it by using vport->vport_id % HCLGE_VF_NUM_PER_CMD / HCLGE_VF_NUM_PER_BYTE as the array index, instead of vport->vport_id / HCLGE_VF_NUM_PER_CMD. Fixes: 052ece6d ("net: hns3: add ethtool related offload command") Signed-off-by:
Jian Shen <shenjian15@huawei.com> Signed-off-by:
Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Mao Wenan authored
[ Upstream commit 6e1cdedc ] NETDEV_TX_BUSY really should only be used by drivers that call netif_tx_stop_queue() at the wrong moment. If dma_map_single() is failed to map tx DMA buffer, it might trigger an infinite loop. This patch use NETDEV_TX_OK instead of NETDEV_TX_BUSY, and change printk to pr_err_ratelimited. Fixes: d9fb9f38 ("*sonic/natsemi/ns83829: Move the National Semi-conductor drivers") Signed-off-by:
Mao Wenan <maowenan@huawei.com> Signed-off-by:
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Oleh Kravchenko authored
[ Upstream commit 4016ba85 ] Error was detected by PVS-Studio: V522 Dereferencing of the null pointer 'led_cdev->trigger' might take place. Fixes: 2282e125 ("leds: triggers: let struct led_trigger::activate() return an error code") Signed-off-by:
Oleh Kravchenko <oleg@kaa.org.ua> Reviewed-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by:
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Björn Töpel authored
[ Upstream commit 9764f4b3 ] The umem member of struct xdp_sock is read outside of the control mutex, in the mmap implementation, and needs a WRITE_ONCE to avoid potential store-tearing. Acked-by:
Jonathan Lemon <jonathan.lemon@gmail.com> Fixes: 423f3832 ("xsk: add umem fill queue support and mmap") Signed-off-by:
Björn Töpel <bjorn.topel@intel.com> Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
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Björn Töpel authored
[ Upstream commit 94a99763 ] Use WRITE_ONCE when doing the store of tx, rx, fq, and cq, to avoid potential store-tearing. These members are read outside of the control mutex in the mmap implementation. Acked-by:
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Oscar A Perez authored
[ Upstream commit 89b97c42 ] According to the AST2500/AST2520 specs, these SoCs support up to 228 GPIO pins. However, 'gpio-ranges' value in 'aspeed-g5.dtsi' file is currently setting the upper limit to 220 which isn't allowing access to all their GPIOs. The correct upper limit value is 232 (actual number is 228 plus a 4-GPIO hole in GPIOAB). Without this patch, GPIOs AC5 and AC6 do not work correctly on a AST2500 BMC running Linux Kernel v4.19 Fixes: 2039f90d ("ARM: dts: aspeed-g5: Add gpio controller to devicetree") Signed-off-by:
Oscar A Perez <linux@neuralgames.com> Reviewed-by:
Andrew Jeffery <andrew@aj.id.au> Signed-off-by:
Joel Stanley <joel@jms.id.au> Signed-off-by:
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Andrey Smirnov authored
[ Upstream commit 1da17d7c ] When dealing with 32-bit variant of LPUART IP block appropriate I/O helpers have to be used to properly deal with endianness differences. Change all of the offending code to do that. Fixes: a5fa2660 ("tty/serial/fsl_lpuart: Add CONSOLE_POLL support for lpuart32.") Signed-off-by:
Andrey Smirnov <andrew.smirnov@gmail.com> Cc: Stefan Agner <stefan@agner.ch> Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> Cc: Chris Healy <cphealy@gmail.com> Cc: Cory Tusar <cory.tusar@zii.aero> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.com> Cc: linux-imx@nxp.com Cc: linux-serial@vger.kernel.org Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/r/20190729195226.8862-14-andrew.smirnov@gmail.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Arnd Bergmann authored
[ Upstream commit 355cf319 ] clang triggers a warning about oversized stack frames that gcc does not notice because of slightly different inlining decisions: ath/wcn36xx/smd.c:1409:5: error: stack frame size of 1040 bytes in function 'wcn36xx_smd_config_bss' [-Werror,-Wframe-larger-than=] ath/wcn36xx/smd.c:640:5: error: stack frame size of 1032 bytes in function 'wcn36xx_smd_start_hw_scan' [-Werror,-Wframe-larger-than=] Basically the wcn36xx_hal_start_scan_offload_req_msg, wcn36xx_hal_config_bss_req_msg_v1, and wcn36xx_hal_config_bss_req_msg structures are too large to be put on the kernel stack, but small enough that gcc does not warn about them. Use kzalloc() to allocate them all. There are similar structures in other parts of this driver, but they are all smaller, with the next largest stack frame at 480 bytes for wcn36xx_smd_send_beacon. Fixes: 8e84c258 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Lorenzo Bianconi authored
[ Upstream commit e1aa1a1d ] Fix following lockdep warning disabling bh in ath_dynack_node_init/ath_dynack_node_deinit [ 75.955878] -------------------------------- [ 75.955880] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 75.955884] swapper/0/0 [HC0[0]:SC1[3]:HE1:SE0] takes: [ 75.955888] 00000000792a7ee0 (&(&da->qlock)->rlock){+.?.}, at: ath_dynack_sample_ack_ts+0x4d/0xa0 [ath9k_hw] [ 75.955905] {SOFTIRQ-ON-W} state was registered at: [ 75.955912] lock_acquire+0x9a/0x160 [ 75.955917] _raw_spin_lock+0x2c/0x70 [ 75.955927] ath_dynack_node_init+0x2a/0x60 [ath9k_hw] [ 75.955934] ath9k_sta_state+0xec/0x160 [ath9k] [ 75.955976] drv_sta_state+0xb2/0x740 [mac80211] [ 75.956008] sta_info_insert_finish+0x21a/0x420 [mac80211] [ 75.956039] sta_info_insert_rcu+0x12b/0x2c0 [mac80211] [ 75.956069] sta_info_insert+0x7/0x70 [mac80211] [ 75.956093] ieee80211_prep_connection+0x42e/0x730 [mac80211] [ 75.956120] ieee80211_mgd_auth.cold+0xb9/0x15c [mac80211] [ 75.956152] cfg80211_mlme_auth+0x143/0x350 [cfg80211] [ 75.956169] nl80211_authenticate+0x25e/0x2b0 [cfg80211] [ 75.956172] genl_family_rcv_msg+0x198/0x400 [ 75.956174] genl_rcv_msg+0x42/0x90 [ 75.956176] netlink_rcv_skb+0x35/0xf0 [ 75.956178] genl_rcv+0x1f/0x30 [ 75.956180] netlink_unicast+0x154/0x200 [ 75.956182] netlink_sendmsg+0x1bf/0x3d0 [ 75.956186] ___sys_sendmsg+0x2c2/0x2f0 [ 75.956187] __sys_sendmsg+0x44/0x80 [ 75.956190] do_syscall_64+0x55/0x1a0 [ 75.956192] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.956194] irq event stamp: 2357092 [ 75.956196] hardirqs last enabled at (2357092): [<ffffffff818c62de>] _raw_spin_unlock_irqrestore+0x3e/0x50 [ 75.956199] hardirqs last disabled at (2357091): [<ffffffff818c60b1>] _raw_spin_lock_irqsave+0x11/0x80 [ 75.956202] softirqs last enabled at (2357072): [<ffffffff8106dc09>] irq_enter+0x59/0x60 [ 75.956204] softirqs last disabled at (2357073): [<ffffffff8106dcbe>] irq_exit+0xae/0xc0 [ 75.956206] other info that might help us debug this: [ 75.956207] Possible unsafe locking scenario: [ 75.956208] CPU0 [ 75.956209] ---- [ 75.956210] lock(&(&da->qlock)->rlock); [ 75.956213] <Interrupt> [ 75.956214] lock(&(&da->qlock)->rlock); [ 75.956216] *** DEADLOCK *** [ 75.956217] 1 lock held by swapper/0/0: [ 75.956219] #0: 000000003bb5675c (&(&sc->sc_pcu_lock)->rlock){+.-.}, at: ath9k_tasklet+0x55/0x240 [ath9k] [ 75.956225] stack backtrace: [ 75.956228] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.0-rc1-wdn+ #13 [ 75.956229] Hardware name: Dell Inc. Studio XPS 1340/0K183D, BIOS A11 09/08/2009 [ 75.956231] Call Trace: [ 75.956233] <IRQ> [ 75.956236] dump_stack+0x67/0x90 [ 75.956239] mark_lock+0x4c1/0x640 [ 75.956242] ? check_usage_backwards+0x130/0x130 [ 75.956245] ? sched_clock_local+0x12/0x80 [ 75.956247] __lock_acquire+0x484/0x7a0 [ 75.956250] ? __lock_acquire+0x3b9/0x7a0 [ 75.956252] lock_acquire+0x9a/0x160 [ 75.956259] ? ath_dynack_sample_ack_ts+0x4d/0xa0 [ath9k_hw] [ 75.956262] _raw_spin_lock_bh+0x34/0x80 [ 75.956268] ? ath_dynack_sample_ack_ts+0x4d/0xa0 [ath9k_hw] [ 75.956275] ath_dynack_sample_ack_ts+0x4d/0xa0 [ath9k_hw] [ 75.956280] ath_rx_tasklet+0xd09/0xe90 [ath9k] [ 75.956286] ath9k_tasklet+0x102/0x240 [ath9k] [ 75.956288] tasklet_action_common.isra.0+0x6d/0x170 [ 75.956291] __do_softirq+0xcc/0x425 [ 75.956294] irq_exit+0xae/0xc0 [ 75.956296] do_IRQ+0x8a/0x110 [ 75.956298] common_interrupt+0xf/0xf [ 75.956300] </IRQ> [ 75.956303] RIP: 0010:cpuidle_enter_state+0xb2/0x400 [ 75.956308] RSP: 0018:ffffffff82203e70 EFLAGS: 00000202 ORIG_RAX: ffffffffffffffd7 [ 75.956310] RAX: ffffffff82219800 RBX: ffffffff822bd0a0 RCX: 0000000000000000 [ 75.956312] RDX: 0000000000000046 RSI: 0000000000000006 RDI: ffffffff82219800 [ 75.956314] RBP: ffff888155a01c00 R08: 00000011af51aabe R09: 0000000000000000 [ 75.956315] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002 [ 75.956317] R13: 00000011af51aabe R14: 0000000000000003 R15: ffffffff82219800 [ 75.956321] cpuidle_enter+0x24/0x40 [ 75.956323] do_idle+0x1ac/0x220 [ 75.956326] cpu_startup_entry+0x14/0x20 [ 75.956329] start_kernel+0x482/0x489 [ 75.956332] secondary_startup_64+0xa4/0xb0 Fixes: c774d57f ("ath9k: add dynamic ACK timeout estimation") Signed-off-by:
Lorenzo Bianconi <lorenzo@kernel.org> Tested-by:
Koen Vandeputte <koen.vandeputte@ncentric.com> Signed-off-by:
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Pablo Neira Ayuso authored
[ Upstream commit b067fa00 ] If this flag is set, timeout and state are irrelevant to userspace. Fixes: 90964016 ("netfilter: nf_conntrack: add IPS_OFFLOAD status bit") Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
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Colin Ian King authored
[ Upstream commit b1e18768 ] Currently the pointer val is being incorrectly incremented instead of the value pointed to by val. Fix this by adding in the missing * indirection operator. Addresses-Coverity: ("Unused value") Fixes: c03f2c53 ("staging:iio:dac: Add AD5380 driver") Signed-off-by:
Colin Ian King <colin.king@canonical.com> Reviewed-by:
Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by:
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Dan Carpenter authored
[ Upstream commit d66c9920 ] The copy_to_user() function returns the number of bytes remaining to be copied, but the intention here was to return -EFAULT if the copy fails. Fixes: cafe5635 ("bcache: A block layer cache") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Coly Li <colyli@suse.de> Signed-off-by:
Jens Axboe <axboe@kernel.dk> Signed-off-by:
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YueHaibing authored
[ Upstream commit 35af2445 ] If CONFIG_REGMAP_I2C is not set, building fails: drivers/usb/typec/tps6598x.o: In function `tps6598x_probe': tps6598x.c:(.text+0x5f0): undefined reference to `__devm_regmap_init_i2c' Select REGMAP_I2C to fix this. Reported-by:
Hulk Robot <hulkci@huawei.com> Fixes: 0a4c005b ("usb: typec: driver for TI TPS6598x USB Power Delivery controllers") Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Acked-by:
Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20190903121026.22148-1-yuehaibing@huawei.comSigned-off-by:
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Colin Ian King authored
[ Upstream commit 420c20be ] An earlier commit re-worked the setting of the bitmask and is now assigning v with some bit flags rather than bitwise or-ing them into v, consequently the earlier bit-settings of v are being lost. Fix this by replacing an assignment with the bitwise or instead. Addresses-Coverity: ("Unused value") Fixes: 2be25cac ("bcma: add constants for PCI and use them") Signed-off-by:
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Dexuan Cui authored
[ Upstream commit 711419e5 ] Recently device pass-through stops working for Linux VM running on Hyper-V. git-bisect shows the regression is caused by the recent commit 467a3bb9 ("PCI: hv: Allocate a named fwnode ..."), but the root cause is that the commit d59f6617 forgets to set the domain->fwnode for IRQCHIP_FWNODE_NAMED*, and as a result: 1. The domain->fwnode remains to be NULL. 2. irq_find_matching_fwspec() returns NULL since "h->fwnode == fwnode" is false, and pci_set_bus_msi_domain() sets the Hyper-V PCI root bus's msi_domain to NULL. 3. When the device is added onto the root bus, the device's dev->msi_domain is set to NULL in pci_set_msi_domain(). 4. When a device driver tries to enable MSI-X, pci_msi_setup_msi_irqs() calls arch_setup_msi_irqs(), which uses the native MSI chip (i.e. arch/x86/kernel/apic/msi.c: pci_msi_controller) to set up the irqs, but actually pci_msi_setup_msi_irqs() is supposed to call msi_domain_alloc_irqs() with the hbus->irq_domain, which is created in hv_pcie_init_irq_domain() and is associated with the Hyper-V chip hv_msi_irq_chip. Consequently, the irq line is not properly set up, and the device driver can not receive any interrupt. Fixes: d59f6617 ("genirq: Allow fwnode to carry name information only") Fixes: 467a3bb9 ("PCI: hv: Allocate a named fwnode instead of an address-based one") Reported-by:
Lili Deng <v-lide@microsoft.com> Signed-off-by:
Dexuan Cui <decui@microsoft.com> Signed-off-by:
Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/PU1P153MB01694D9AF625AC335C600C5FBFBE0@PU1P153MB0169.APCP153.PROD.OUTLOOK.COMSigned-off-by:
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Dan Carpenter authored
[ Upstream commit 32910124 ] The problem is in gb_lights_request_handler(). If we get a request to change the config then we release the light with gb_lights_light_release() and re-allocated it. However, if the allocation fails part way through then we call gb_lights_light_release() again. This can lead to a couple different double frees where we haven't cleared out the original values: gb_lights_light_v4l2_unregister(light); ... kfree(light->channels); kfree(light->name); I also made a small change to how we set "light->channels_count = 0;". The original code handled this part fine and did not cause a use after free but it was sort of complicated to read. Fixes: 2870b52b ("greybus: lights: add lights implementation") Signed-off-by:
Rui Miguel Silva <rmfrfs@gmail.com> Link: https://lore.kernel.org/r/20190829122839.GA20116@mwandaSigned-off-by:
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Masami Hiramatsu authored
[ Upstream commit 7720804a ] Since x86 instruction decoder is not only for kprobes, it should be tested when the insn.c is compiled. (e.g. perf is enabled but kprobes is disabled) Signed-off-by:
Masami Hiramatsu <mhiramat@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: cbe5c34c ("x86: Compile insn.c and inat.c only for KPROBES") Signed-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
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Stephen Boyd authored
[ Upstream commit 82880222 ] We may want to use the device pointer in device_init_wakeup() with functions that expect the device to already be added with device_add(). For example, if we were to link the device initializing wakeup to something in sysfs such as a class for wakeups we'll run into an error. It looks like this code was written with the assumption that the device would be added before initializing wakeup due to the order of operations in power_supply_unregister(). Let's change the order of operations so we don't run into problems here. Fixes: 948dcf96 ("power_supply: Prevent suspend until power supply events are processed") Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Tri Vo <trong@android.com> Cc: Kalesh Singh <kaleshsingh@google.com> Cc: Ravi Chandra Sadineni <ravisadineni@chromium.org> Cc: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
Stephen Boyd <swboyd@chromium.org> Acked-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by:
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Vladimir Oltean authored
[ Upstream commit 1c6c09a0 ] The discussion to be made is absolutely the same as in the case of previous patch ("taprio: Set default link speed to 10 Mbps in taprio_set_picos_per_byte"). Nothing is lost when setting a default. Cc: Leandro Dorileo <leandro.maciel.dorileo@intel.com> Fixes: e0a7683d ("net/sched: cbs: fix port_rate miscalculation") Acked-by:
Vinicius Costa Gomes <vinicius.gomes@intel.com> Signed-off-by:
Vladimir Oltean <olteanv@gmail.com> Signed-off-by:
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Guenter Roeck authored
[ Upstream commit 7d82fcc9 ] Writes into limit registers fail if the temperature written is negative. The regmap write operation checks the value range, regmap_write accepts an unsigned int as parameter, and the temperature value passed to regmap_write is kept in a variable declared as long. Negative values are converted large unsigned integers, which fails the range check. Fix by type casting the temperature to u16 when calling regmap_write(). Cc: Iker Perez del Palomar Sustatxa <iker.perez@codethink.co.uk> Fixes: e65365fe ("hwmon: (lm75) Convert to use regmap") Signed-off-by:
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Linus Torvalds authored
[ Upstream commit ab9bb631 ] Commit dfe2a77f ("kfifo: fix kfifo_alloc() and kfifo_init()") made the kfifo code round the number of elements up. That was good for __kfifo_alloc(), but it's actually wrong for __kfifo_init(). The difference? __kfifo_alloc() will allocate the rounded-up number of elements, but __kfifo_init() uses an allocation done by the caller. We can't just say "use more elements than the caller allocated", and have to round down. The good news? All the normal cases will be using power-of-two arrays anyway, and most users of kfifo's don't use kfifo_init() at all, but one of the helper macros to declare a KFIFO that enforce the proper power-of-two behavior. But it looks like at least ibmvscsis might be affected. The bad news? Will Deacon refers to an old thread and points points out that the memory ordering in kfifo's is questionable. See https://lore.kernel.org/lkml/20181211034032.32338-1-yuleixzhang@tencent.com/ for more. Fixes: dfe2a77f ("kfifo: fix kfifo_alloc() and kfifo_init()") Reported-by:
laokz <laokz@foxmail.com> Cc: Stefani Seibold <stefani@seibold.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Greg KH <greg@kroah.com> Cc: Kees Cook <keescook@chromium.org> Cc: Will Deacon <will@kernel.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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David Howells authored
[ Upstream commit d12040b6 ] When a local endpoint is ceases to be in use, such as when the kafs module is unloaded, the kernel will emit an assertion failure if there are any outstanding client connections: rxrpc: Assertion failed ------------[ cut here ]------------ kernel BUG at net/rxrpc/local_object.c:433! and even beyond that, will evince other oopses if there are service connections still present. Fix this by: (1) Removing the triggering of connection reaping when an rxrpc socket is released. These don't actually clean up the connections anyway - and further, the local endpoint may still be in use through another socket. (2) Mark the local endpoint as dead when we start the process of tearing it down. (3) When destroying a local endpoint, strip all of its client connections from the idle list and discard the ref on each that the list was holding. (4) When destroying a local endpoint, call the service connection reaper directly (rather than through a workqueue) to immediately kill off all outstanding service connections. (5) Make the service connection reaper reap connections for which the local endpoint is marked dead. Only after destroying the connections can we close the socket lest we get an oops in a workqueue that's looking at a connection or a peer. Fixes: 3d18cbb7 ("rxrpc: Fix conn expiry timers") Signed-off-by:
David Howells <dhowells@redhat.com> Tested-by:
Marc Dionne <marc.dionne@auristor.com> Signed-off-by:
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Andy Shevchenko authored
[ Upstream commit 60fc35f3 ] The commit ed08d40c ("ahci: Changing two module params with static and __read_mostly") moved ahci_em_messages to be static while missing the fact of exporting it. WARNING: "ahci_em_messages" [vmlinux] is a static EXPORT_SYMBOL_GPL Drop export for the local variable ahci_em_messages. Fixes: ed08d40c ("ahci: Changing two module params with static and __read_mostly") Cc: Chuansheng Liu <chuansheng.liu@intel.com> Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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Yong Wu authored
[ Upstream commit 76ce6546 ] In M4U 4GB mode, the physical address is remapped as below: CPU Physical address: ==================== 0 1G 2G 3G 4G 5G |---A---|---B---|---C---|---D---|---E---| +--I/O--+------------Memory-------------+ IOMMU output physical address: ============================= 4G 5G 6G 7G 8G |---E---|---B---|---C---|---D---| +------------Memory-------------+ The Region 'A'(I/O) can not be mapped by M4U; For Region 'B'/'C'/'D', the bit32 of the CPU physical address always is needed to set, and for Region 'E', the CPU physical address keep as is. something looks like this: CPU PA -> M4U OUTPUT PA 0x4000_0000 0x1_4000_0000 (Add bit32) 0x8000_0000 0x1_8000_0000 ... 0xc000_0000 0x1_c000_0000 ... 0x1_0000_0000 0x1_0000_0000 (No change) Additionally, the iommu consumers always use the CPU phyiscal address. The PA in the iova_to_phys that is got from v7s always is u32, But from the CPU point of view, PA only need add BIT(32) when PA < 0x4000_0000. Fixes: 30e2fccf ("iommu/mediatek: Enlarge the validate PA range for 4GB mode") Signed-off-by:
Yong Wu <yong.wu@mediatek.com> Signed-off-by:
Joerg Roedel <jroedel@suse.de> Signed-off-by:
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Markus Elfring authored
[ Upstream commit ecbce48f ] A null pointer would be passed to a call of the function "kfree" directly after a call of the function "kcalloc" failed at one place. Pass the data structure member "urb" instead for which memory was allocated before (so that this resource will be properly cleaned up). This issue was detected by using the Coccinelle software. Fixes: d571b592 ("media: em28xx: don't use coherent buffer for DMA transfers") Signed-off-by:
Markus Elfring <elfring@users.sourceforge.net> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by:
Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by:
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Nick Desaulniers authored
[ Upstream commit 12051b31 ] The code in question is modifying a variable declared const through pointer manipulation. Such code is explicitly undefined behavior, and is the lone issue preventing malta_defconfig from booting when built with Clang: If an attempt is made to modify an object defined with a const-qualified type through use of an lvalue with non-const-qualified type, the behavior is undefined. LLVM is removing such assignments. A simple fix is to not declare variables const that you plan on modifying. Limiting the scope would be a better method of preventing unwanted writes to such a variable. Further, the code in question mentions "compiler bugs" without any links to bug reports, so it is difficult to know if the issue is resolved in GCC. The patch was authored in 2006, which would have been GCC 4.0.3 or 4.1.1. The minimal supported version of GCC in the Linux kernel is currently 4.6. For what its worth, there was UB before the commit in question, it just added a barrier and got lucky IRT codegen. I don't think there's any actual compiler bugs related, just runtime bugs due to UB. Link: https://github.com/ClangBuiltLinux/linux/issues/610 Fixes: 966f4406 ("[MIPS] Work around bad code generation for <asm/io.h>.") Reported-by:
Nathan Chancellor <natechancellor@gmail.com> Debugged-by:
Eli Friedman <efriedma@quicinc.com> Signed-off-by:
Nick Desaulniers <ndesaulniers@google.com> Reviewed-by:
Paul Burton <paul.burton@mips.com> Cc: ralf@linux-mips.org Cc: jhogan@kernel.org Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: Hassan Naveed <hnaveed@wavecomp.com> Cc: Stephen Kitt <steve@sk2.org> Cc: Serge Semin <fancer.lancer@gmail.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.com> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: clang-built-linux@googlegroups.com Signed-off-by:
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Bruno Thomsen authored
[ Upstream commit 7f43020e ] The previous fix listed bulk read of registers as root cause of accendential disabling of watchdog, since the watchdog counter register (WD_VAL) was zeroed. Fixes: 3769a375 rtc: pcf2127: bulk read only date and time registers. Tested with the same PCF2127 chip as Sean reveled root cause of WD_VAL register value zeroing was caused by reading CTRL2 register which is one of the watchdog feature control registers. So the solution is to not read the first two control registers (CTRL1 and CTRL2) in pcf2127_rtc_read_time as they are not needed anyway. Size of local buf variable is kept to allow easy usage of register defines to improve readability of code. Debug trace line was updated after CTRL1 and CTRL2 are no longer read from the chip. Also replaced magic numbers in buf access with register defines. Signed-off-by:
Bruno Thomsen <bruno.thomsen@gmail.com> Link: https://lore.kernel.org/r/20190822131936.18772-3-bruno.thomsen@gmail.comSigned-off-by:
Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by:
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Geert Uytterhoeven authored
[ Upstream commit 3e07590e ] Since commit ad67b74d ("printk: hash addresses printed with %p"), an obfuscated kernel pointer is printed at every boot if debugging is enabled: vdso: 1 text pages at base (____ptrval____) Remove the print completely, as it's useless without the address. Based on commit 0f1bf7e3 ("arm64/vdso: don't leak kernel addresses"). Fixes: ad67b74d ("printk: hash addresses printed with %p") Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by:
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Alexandre Kroupski authored
[ Upstream commit 623fd246 ] In case of sensor malfunction, stop streaming timeout takes much longer than expected. This is due to conversion of time to jiffies: milliseconds multiplied with HZ (ticks/second) gives out a value of jiffies with 10^3 greater. We need to also divide by 10^3 to obtain the right jiffies value. In other words FRAME_INTERVAL_MILLI_SEC must be in seconds in order to multiply by HZ and get the right jiffies value to add to the current jiffies for the timeout expire time. Fixes: 195ebc43 ("[media] V4L: at91: add Atmel Image Sensor Interface (ISI) support") Signed-off-by:
Alexandre Kroupski <alexandre.kroupski@ingenico.com> Reviewed-by:
Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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