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2020-03-06arm64: change ARCH_SPRD Kconfig to tristateChunyan Zhang
The default value of Kconfig for almost all sprd drivers are the same with ARCH_SPRD, making these drivers built as modules as default would be easier if we can set ARCH_SPRD as 'm', so this patch change ARCH_SPRD to tristate. Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com> Link: https://lore.kernel.org/r/20200305103228.9686-1-zhang.lyra@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06serial: 8250_lpss: Add ->setup() for Elkhart Lake portsAndy Shevchenko
The ->setup() callback is mandatory for the devices. Provide it for Elkhart Lake UART ports. Note, for time being it's empty, but in the future it might require an additional configuration such as DMA. Reported-by: Raymond Tan <raymond.tan@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200305130822.36850-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06serial: 8250-mtk: modify mtk uart power and clock managementChangqi Hu
MTK uart design no need to control uart clock, so we just control bus clock in runtime function. Add uart clock used count to avoid repeatedly switching the clock. Signed-off-by: Changqi Hu <changqi.hu@mediatek.com> Link: https://lore.kernel.org/r/1582707225-26815-1-git-send-email-changqi.hu@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06tty: imx serial: Implement support for reversing TX and RX polarityGeorge Hilliard
The peripheral has support for inverting its input and/or output signals. This is useful if the hardware flips polarity of the peripheral's signal, such as swapped +/- pins on an RS-422 transceiver, or an inverting level shifter. Add support for these control registers via the device tree binding. As part of this change, make the writes of the various registers more uniform by moving the UCR3 block up near the other registers' blocks, since the INVT bit must be set before enabling the peripheral. Signed-off-by: George Hilliard <ghilliard@kopismobile.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20200226222319.18383-3-ghilliard@kopismobile.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06dt-bindings: serial: document fsl,inverted-tx and -rx optionsGeorge Hilliard
Add a description for the new fsl,inverted-tx and fsl,inverted-rx options for the i.MX UART peripheral. Signed-off-by: George Hilliard <ghilliard@kopismobile.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200226222319.18383-2-ghilliard@kopismobile.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06serial: ar933x_uart: add RS485 supportDaniel Golle
Emulate half-duplex operation and use mctrl_gpio to add support for RS485 tranceiver with transmit/receive switch hooked to RTS GPIO line. This is needed to make use of the RS485 port found on Teltonika RUT955. Signed-off-by: Daniel Golle <daniel@makrotopia.org> Link: https://lore.kernel.org/r/20200221212331.GA21467@makrotopia.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06tty: serial: qcom_geni_serial: Fix GPIO swapping with workaroundRoja Rani Yarubandi
Add capability to support RX-TX, CTS-RTS pins swap in HW. Configure UART_IO_MACRO_CTRL register accordingly if RX-TX pair or CTS-RTS pair or both pairs swapped. Signed-off-by: Roja Rani Yarubandi <rojay@codeaurora.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Tested-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20200304112203.408-1-rojay@codeaurora.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06tty: serial: cpm_uart: Convert to use GPIO descriptorsLinus Walleij
The CPM UART (PowerPC) has an open coded GPIO modem control handling. Since I can't test this I can't just migrate it to the serial mctrl GPIO helper library though I wish I could. I do second best and convert it to GPIO descriptors at least. Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200229231842.247563-1-linus.walleij@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06tty: serial: lantiq: Drop GPIO includeLinus Walleij
Nothing in this driver uses the symbols from <linux/gpio.h> so drop this include. Cc: Rahul Tanwar <rahul.tanwar@linux.intel.com> Cc: Songjun Wu <songjun.wu@linux.intel.com> Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: John Crispin <john@phrozen.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200229212331.174946-1-linus.walleij@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06tty: serial: atmel_serial: Drop GPIO includesLinus Walleij
Nothing in this driver uses the symbols from these GPIO includes so drop them. These are probably just historical artifacts from befor mctrl_gpio was used. Cc: Ludovic Desroches <ludovic.desroches@microchip.com> Cc: Razvan Stefanescu <razvan.stefanescu@microchip.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Ludovic Desroches <ludovic.desroches@microchip.com> Link: https://lore.kernel.org/r/20200229220941.205599-1-linus.walleij@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06vt: selection, indent switch-case properlyJiri Slaby
Shift the cases one level left as this is how we are supposed to write the switch-case code according to the CodingStyle. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20200219073951.16151-9-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06vt: selection, remove redeclaration of poke_blanked_consoleJiri Slaby
It is declared in vt_kern.h, so no need to declare it in selection.c which includes the header. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20200219073951.16151-8-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06vt: vt_kern.h, remove extern from functionsJiri Slaby
Unify the declarations of functions in vt_kern.h: some are with extern, some are not. Remove extern from the former as it is not needed for functions. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20200219073951.16151-7-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06vt: switch vt_dont_switch to boolJiri Slaby
vt_dont_switch is pure boolean, no need for whole char. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20200219073951.16151-6-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06vt: selection, create struct from console selection globalsJiri Slaby
Move all the selection global variables to a structure vc_selection, instantiated as vc_sel. This helps to group all the variables together and see what should be protected by the embedded lock too. It might be used later also for per-console selection support. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20200219073951.16151-5-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06vt: selection, localize use_unicodeJiri Slaby
use_unicode needs not be global. It is used only in set_selection_kernel and sel_pos (a callee). It is also always set there prior calling sel_pos. So make use_unicode local and rename it to plain shorter "unicode". Finally, propagate it to sel_pos via parameter. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20200219073951.16151-4-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06vt: selection, remove 2 local variables from set_selection_kernelJiri Slaby
multiplier and mode are not actually needed: * multiplier is used only in kmalloc_array, so use "use_unicode ? 4 : 1" directly * mode is used only to assign a bool in this manner: if (cond) x = true; else x = false; So do "x = cond" directly. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20200219073951.16151-3-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-24Merge 5.6-rc3 into tty-nextGreg Kroah-Hartman
We want the tty fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-23Linux 5.6-rc3Linus Torvalds
2020-02-23n_tty: Distribute switch variables for initializationKees Cook
Variables declared in a switch statement before any case statements cannot be automatically initialized with compiler instrumentation (as they are not part of any execution flow). With GCC's proposed automatic stack variable initialization feature, this triggers a warning (and they don't get initialized). Clang's automatic stack variable initialization (via CONFIG_INIT_STACK_ALL=y) doesn't throw a warning, but it also doesn't initialize such variables[1]. Note that these warnings (or silent skipping) happen before the dead-store elimination optimization phase, so even when the automatic initializations are later elided in favor of direct initializations, the warnings remain. To avoid these problems, move such variables into the "case" where they're used or lift them up into the main function body. drivers/tty/n_tty.c: In function ‘__process_echoes’: drivers/tty/n_tty.c:657:18: warning: statement will never be executed [-Wswitch-unreachable] 657 | unsigned int num_chars, num_bs; | ^~~~~~~~~ [1] https://bugs.llvm.org/show_bug.cgi?id=44916 Reviewed-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200220062313.69209-1-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-23Merge tag 'for-5.6-rc2-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fixes from David Sterba: "These are fixes that were found during testing with help of error injection, plus some other stable material. There's a fixup to patch added to rc1 causing locking in wrong context warnings, tests found one more deadlock scenario. The patches are tagged for stable, two of them now in the queue but we'd like all three released at the same time. I'm not happy about fixes to fixes in such a fast succession during rcs, but I hope we found all the fallouts of commit 28553fa992cb ('Btrfs: fix race between shrinking truncate and fiemap')" * tag 'for-5.6-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: Btrfs: fix deadlock during fast fsync when logging prealloc extents beyond eof Btrfs: fix btrfs_wait_ordered_range() so that it waits for all ordered extents btrfs: fix bytes_may_use underflow in prealloc error condtition btrfs: handle logged extent failure properly btrfs: do not check delayed items are empty for single transaction cleanup btrfs: reset fs_root to NULL on error in open_ctree btrfs: destroy qgroup extent records on transaction abort
2020-02-23Merge tag 'ext4_for_linus_stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "More miscellaneous ext4 bug fixes (all stable fodder)" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix mount failure with quota configured as module jbd2: fix ocfs2 corrupt when clearing block group bits ext4: fix race between writepages and enabling EXT4_EXTENTS_FL ext4: rename s_journal_flag_rwsem to s_writepages_rwsem ext4: fix potential race between s_flex_groups online resizing and access ext4: fix potential race between s_group_info online resizing and access ext4: fix potential race between online resizing and write operations ext4: add cond_resched() to __ext4_find_entry() ext4: fix a data race in EXT4_I(inode)->i_disksize
2020-02-23Merge tag 'csky-for-linus-5.6-rc3' of git://github.com/c-sky/csky-linuxLinus Torvalds
Pull csky updates from Guo Ren: "Sorry, I missed 5.6-rc1 merge window, but in this pull request the most are the fixes and the rests are between fixes and features. The only outside modification is the MAINTAINERS file update with our mailing list. - cache flush implementation fixes - ftrace modify panic fix - CONFIG_SMP boot problem fix - fix pt_regs saving for atomic.S - fix fixaddr_init without highmem. - fix stack protector support - fix fake Tightly-Coupled Memory code compile and use - fix some typos and coding convention" * tag 'csky-for-linus-5.6-rc3' of git://github.com/c-sky/csky-linux: (23 commits) csky: Replace <linux/clk-provider.h> by <linux/of_clk.h> csky: Implement copy_thread_tls csky: Add PCI support csky: Minimize defconfig to support buildroot config.fragment csky: Add setup_initrd check code csky: Cleanup old Kconfig options arch/csky: fix some Kconfig typos csky: Fixup compile warning for three unimplemented syscalls csky: Remove unused cache implementation csky: Fixup ftrace modify panic csky: Add flush_icache_mm to defer flush icache all csky: Optimize abiv2 copy_to_user_page with VM_EXEC csky: Enable defer flush_dcache_page for abiv2 cpus (807/810/860) csky: Remove unnecessary flush_icache_* implementation csky: Support icache flush without specific instructions csky/Kconfig: Add Kconfig.platforms to support some drivers csky/smp: Fixup boot failed when CONFIG_SMP csky: Set regs->usp to kernel sp, when the exception is from kernel csky/mm: Fixup export invalid_pte_table symbol csky: Separate fixaddr_init from highmem ...
2020-02-23csky: Replace <linux/clk-provider.h> by <linux/of_clk.h>Geert Uytterhoeven
The C-Sky platform code is not a clock provider, and just needs to call of_clk_init(). Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
2020-02-22Merge tag 'ras-urgent-2020-02-22' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RAS fixes from Thomas Gleixner: "Two fixes for the AMD MCE driver: - Populate the per CPU MCA bank descriptor pointer only after it has been completely set up to prevent a use-after-free in case that one of the subsequent initialization step fails - Implement a proper release function for the sysfs entries of MCA threshold controls instead of freeing the memory right in the CPU teardown code, which leads to another use-after-free when the associated sysfs file is opened and accessed" * tag 'ras-urgent-2020-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce/amd: Fix kobject lifetime x86/mce/amd: Publish the bank pointer only after setup has succeeded
2020-02-22Merge tag 'irq-urgent-2020-02-22' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "Two fixes for the irq core code which are follow ups to the recent MSI fixes: - The WARN_ON which was put into the MSI setaffinity callback for paranoia reasons actually triggered via a callchain which escaped when all the possible ways to reach that code were analyzed. The proc/irq/$N/*affinity interfaces have a quirk which came in when ALPHA moved to the generic interface: In case that the written affinity mask does not contain any online CPU it calls into ALPHAs magic auto affinity setting code. A few years later this mechanism was also made available to x86 for no good reasons and in a way which circumvents all sanity checks for interrupts which cannot have their affinity set from process context on X86 due to the way the X86 interrupt delivery works. It would be possible to make this work properly, but there is no point in doing so. If the interrupt is not yet started then the affinity setting has no effect and if it is started already then it is already assigned to an online CPU so there is no point to randomly move it to some other CPU. Just return EINVAL as the code has done before that change forever. - The new MSI quirk bit in the irq domain flags turned out to be already occupied, which escaped the author and the reviewers because the already in use bits were 0,6,2,3,4,5 listed in that order. That bit 6 was simply overlooked because the ordering was straight forward linear otherwise. So the new bit ended up being a duplicate. Fix it up by switching the oddball 6 to the obvious 1" * tag 'irq-urgent-2020-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq/irqdomain: Make sure all irq domain flags are distinct genirq/proc: Reject invalid affinity masks (again)
2020-02-22Merge tag 'x86-urgent-2020-02-22' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "Two fixes for x86: - Remove the __force_oder definiton from the kaslr boot code as it is already defined in the page table code which makes GCC 10 builds fail because it changed the default to -fno-common. - Address the AMD erratum 1054 concerning the IRPERF capability and enable the Instructions Retired fixed counter on machines which are not affected by the erratum" * tag 'x86-urgent-2020-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu/amd: Enable the fixed Instructions Retired counter IRPERF x86/boot/compressed: Don't declare __force_order in kaslr_64.c
2020-02-22Merge tag 'zonefs-5.6-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs Pull zonefs fix from Damien Le Moal: "A single patch fixing typos in the documentation file" * tag 'zonefs-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs: zonefs: fix documentation typos etc.
2020-02-22Merge tag 'io_uring-5.6-2020-02-22' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull io_uring fixes from Jens Axboe: "Here's a small collection of fixes that were queued up: - Remove unnecessary NULL check (Dan) - Missing io_req_cancelled() call in fallocate (Pavel) - Put the cleanup check for aux data in the right spot (Pavel) - Two fixes for SQPOLL (Stefano, Xiaoguang)" * tag 'io_uring-5.6-2020-02-22' of git://git.kernel.dk/linux-block: io_uring: fix __io_iopoll_check deadlock in io_sq_thread io_uring: prevent sq_thread from spinning when it should stop io_uring: fix use-after-free by io_cleanup_req() io_uring: remove unnecessary NULL checks io_uring: add missing io_req_cancelled()
2020-02-22Merge tag 'block-5.6-2020-02-22' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "Just a set of NVMe fixes via Keith" * tag 'block-5.6-2020-02-22' of git://git.kernel.dk/linux-block: nvme-multipath: Fix memory leak with ana_log_buf nvme: Fix uninitialized-variable warning nvme-pci: Use single IRQ vector for old Apple models nvme/pci: Add sleep quirk for Samsung and Toshiba drives
2020-02-22Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Four non-core fixes. Two are reverts of target fixes which turned out to have unwanted side effects, one is a revert of an RDMA fix with the same problem and the final one fixes an incorrect warning about memory allocation failures in megaraid_sas (the driver actually reduces the allocation size until it succeeds)" Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session" scsi: Revert "RDMA/isert: Fix a recently introduced regression related to logout" scsi: megaraid_sas: silence a warning scsi: Revert "target/core: Inline transport_lun_remove_cmd()"
2020-02-22Merge tag 'hwmon-for-v5.6-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: - Fix crash in w83627ehf driver seen with W83627DHG-P - Fix lockdep splat in acpi_power_meter driver - Fix xdpe12284 documentation Sphinx warnings * tag 'hwmon-for-v5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (w83627ehf) Fix crash seen with W83627DHG-P hwmon: (acpi_power_meter) Fix lockdep splat Documentation/hwmon: fix xdpe12284 Sphinx warnings
2020-02-22Merge tag 'devicetree-fixes-for-5.6-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes deom Rob Herring: "A handful of fixes in DT bindings for MDIO bus, Allwinner CSI, OMAP HSMMC, and Tegra124 EMC" * tag 'devicetree-fixes-for-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt-bindings: media: csi: Fix clocks description dt-bindings: media: csi: Add interconnects properties dt-bindings: net: mdio: remove compatible string from example dt-bindings: memory-controller: Update example for Tegra124 EMC dt-bindings: mmc: omap-hsmmc: Fix SDIO interrupt
2020-02-22Merge tag 's390-5.6-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - Remove ieee_emulation_warnings sysctl which is a dead code. - Avoid triggering rebuild of the kernel during make install. - Enable protected virtualization guest support in default configs. - Fix cio_ignore seq_file .next function to increase position index. And use kobj_to_dev instead of container_of in cio code. - Fix storage block address lists to contain absolute addresses in qdio code. - Few clang warnings and spelling fixes. * tag 's390-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/qdio: fill SBALEs with absolute addresses s390/qdio: fill SL with absolute addresses s390: remove obsolete ieee_emulation_warnings s390: make 'install' not depend on vmlinux s390/kaslr: Fix casts in get_random s390/mm: Explicitly compare PAGE_DEFAULT_KEY against zero in storage_key_init_range s390/pkey/zcrypt: spelling s/crytp/crypt/ s390/cio: use kobj_to_dev() API s390/defconfig: enable CONFIG_PROTECTED_VIRTUALIZATION_GUEST s390/cio: cio_ignore_proc_seq_next should increase position index
2020-02-22io_uring: fix __io_iopoll_check deadlock in io_sq_threadXiaoguang Wang
Since commit a3a0e43fd770 ("io_uring: don't enter poll loop if we have CQEs pending"), if we already events pending, we won't enter poll loop. In case SETUP_IOPOLL and SETUP_SQPOLL are both enabled, if app has been terminated and don't reap pending events which are already in cq ring, and there are some reqs in poll_list, io_sq_thread will enter __io_iopoll_check(), and find pending events, then return, this loop will never have a chance to exit. I have seen this issue in fio stress tests, to fix this issue, let io_sq_thread call io_iopoll_getevents() with argument 'min' being zero, and remove __io_iopoll_check(). Fixes: a3a0e43fd770 ("io_uring: don't enter poll loop if we have CQEs pending") Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-02-21ext4: fix mount failure with quota configured as moduleJan Kara
When CONFIG_QFMT_V2 is configured as a module, the test in ext4_feature_set_ok() fails and so mount of filesystems with quota or project features fails. Fix the test to use IS_ENABLED macro which works properly even for modules. Link: https://lore.kernel.org/r/20200221100835.9332-1-jack@suse.cz Fixes: d65d87a07476 ("ext4: improve explanation of a mount failure caused by a misconfigured kernel") Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org
2020-02-21jbd2: fix ocfs2 corrupt when clearing block group bitswangyan
I found a NULL pointer dereference in ocfs2_block_group_clear_bits(). The running environment: kernel version: 4.19 A cluster with two nodes, 5 luns mounted on two nodes, and do some file operations like dd/fallocate/truncate/rm on every lun with storage network disconnection. The fallocate operation on dm-23-45 caused an null pointer dereference. The information of NULL pointer dereference as follows: [577992.878282] JBD2: Error -5 detected when updating journal superblock for dm-23-45. [577992.878290] Aborting journal on device dm-23-45. ... [577992.890778] JBD2: Error -5 detected when updating journal superblock for dm-24-46. [577992.890908] __journal_remove_journal_head: freeing b_committed_data [577992.890916] (fallocate,88392,52):ocfs2_extend_trans:474 ERROR: status = -30 [577992.890918] __journal_remove_journal_head: freeing b_committed_data [577992.890920] (fallocate,88392,52):ocfs2_rotate_tree_right:2500 ERROR: status = -30 [577992.890922] __journal_remove_journal_head: freeing b_committed_data [577992.890924] (fallocate,88392,52):ocfs2_do_insert_extent:4382 ERROR: status = -30 [577992.890928] (fallocate,88392,52):ocfs2_insert_extent:4842 ERROR: status = -30 [577992.890928] __journal_remove_journal_head: freeing b_committed_data [577992.890930] (fallocate,88392,52):ocfs2_add_clusters_in_btree:4947 ERROR: status = -30 [577992.890933] __journal_remove_journal_head: freeing b_committed_data [577992.890939] __journal_remove_journal_head: freeing b_committed_data [577992.890949] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 [577992.890950] Mem abort info: [577992.890951] ESR = 0x96000004 [577992.890952] Exception class = DABT (current EL), IL = 32 bits [577992.890952] SET = 0, FnV = 0 [577992.890953] EA = 0, S1PTW = 0 [577992.890954] Data abort info: [577992.890955] ISV = 0, ISS = 0x00000004 [577992.890956] CM = 0, WnR = 0 [577992.890958] user pgtable: 4k pages, 48-bit VAs, pgdp = 00000000f8da07a9 [577992.890960] [0000000000000020] pgd=0000000000000000 [577992.890964] Internal error: Oops: 96000004 [#1] SMP [577992.890965] Process fallocate (pid: 88392, stack limit = 0x00000000013db2fd) [577992.890968] CPU: 52 PID: 88392 Comm: fallocate Kdump: loaded Tainted: G W OE 4.19.36 #1 [577992.890969] Hardware name: Huawei TaiShan 2280 V2/BC82AMDD, BIOS 0.98 08/25/2019 [577992.890971] pstate: 60400009 (nZCv daif +PAN -UAO) [577992.891054] pc : _ocfs2_free_suballoc_bits+0x63c/0x968 [ocfs2] [577992.891082] lr : _ocfs2_free_suballoc_bits+0x618/0x968 [ocfs2] [577992.891084] sp : ffff0000c8e2b810 [577992.891085] x29: ffff0000c8e2b820 x28: 0000000000000000 [577992.891087] x27: 00000000000006f3 x26: ffffa07957b02e70 [577992.891089] x25: ffff807c59d50000 x24: 00000000000006f2 [577992.891091] x23: 0000000000000001 x22: ffff807bd39abc30 [577992.891093] x21: ffff0000811d9000 x20: ffffa07535d6a000 [577992.891097] x19: ffff000001681638 x18: ffffffffffffffff [577992.891098] x17: 0000000000000000 x16: ffff000080a03df0 [577992.891100] x15: ffff0000811d9708 x14: 203d207375746174 [577992.891101] x13: 73203a524f525245 x12: 20373439343a6565 [577992.891103] x11: 0000000000000038 x10: 0101010101010101 [577992.891106] x9 : ffffa07c68a85d70 x8 : 7f7f7f7f7f7f7f7f [577992.891109] x7 : 0000000000000000 x6 : 0000000000000080 [577992.891110] x5 : 0000000000000000 x4 : 0000000000000002 [577992.891112] x3 : ffff000001713390 x2 : 2ff90f88b1c22f00 [577992.891114] x1 : ffff807bd39abc30 x0 : 0000000000000000 [577992.891116] Call trace: [577992.891139] _ocfs2_free_suballoc_bits+0x63c/0x968 [ocfs2] [577992.891162] _ocfs2_free_clusters+0x100/0x290 [ocfs2] [577992.891185] ocfs2_free_clusters+0x50/0x68 [ocfs2] [577992.891206] ocfs2_add_clusters_in_btree+0x198/0x5e0 [ocfs2] [577992.891227] ocfs2_add_inode_data+0x94/0xc8 [ocfs2] [577992.891248] ocfs2_extend_allocation+0x1bc/0x7a8 [ocfs2] [577992.891269] ocfs2_allocate_extents+0x14c/0x338 [ocfs2] [577992.891290] __ocfs2_change_file_space+0x3f8/0x610 [ocfs2] [577992.891309] ocfs2_fallocate+0xe4/0x128 [ocfs2] [577992.891316] vfs_fallocate+0x11c/0x250 [577992.891317] ksys_fallocate+0x54/0x88 [577992.891319] __arm64_sys_fallocate+0x28/0x38 [577992.891323] el0_svc_common+0x78/0x130 [577992.891325] el0_svc_handler+0x38/0x78 [577992.891327] el0_svc+0x8/0xc My analysis process as follows: ocfs2_fallocate __ocfs2_change_file_space ocfs2_allocate_extents ocfs2_extend_allocation ocfs2_add_inode_data ocfs2_add_clusters_in_btree ocfs2_insert_extent ocfs2_do_insert_extent ocfs2_rotate_tree_right ocfs2_extend_rotate_transaction ocfs2_extend_trans jbd2_journal_restart jbd2__journal_restart /* handle->h_transaction is NULL, * is_handle_aborted(handle) is true */ handle->h_transaction = NULL; start_this_handle return -EROFS; ocfs2_free_clusters _ocfs2_free_clusters _ocfs2_free_suballoc_bits ocfs2_block_group_clear_bits ocfs2_journal_access_gd __ocfs2_journal_access jbd2_journal_get_undo_access /* I think jbd2_write_access_granted() will * return true, because do_get_write_access() * will return -EROFS. */ if (jbd2_write_access_granted(...)) return 0; do_get_write_access /* handle->h_transaction is NULL, it will * return -EROFS here, so do_get_write_access() * was not called. */ if (is_handle_aborted(handle)) return -EROFS; /* bh2jh(group_bh) is NULL, caused NULL pointer dereference */ undo_bg = (struct ocfs2_group_desc *) bh2jh(group_bh)->b_committed_data; If handle->h_transaction == NULL, then jbd2_write_access_granted() does not really guarantee that journal_head will stay around, not even speaking of its b_committed_data. The bh2jh(group_bh) can be removed after ocfs2_journal_access_gd() and before call "bh2jh(group_bh)->b_committed_data". So, we should move is_handle_aborted() check from do_get_write_access() into jbd2_journal_get_undo_access() and jbd2_journal_get_write_access() before the call to jbd2_write_access_granted(). Link: https://lore.kernel.org/r/f72a623f-b3f1-381a-d91d-d22a1c83a336@huawei.com Signed-off-by: Yan Wang <wangyan122@huawei.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jun Piao <piaojun@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: stable@kernel.org
2020-02-21ext4: fix race between writepages and enabling EXT4_EXTENTS_FLEric Biggers
If EXT4_EXTENTS_FL is set on an inode while ext4_writepages() is running on it, the following warning in ext4_add_complete_io() can be hit: WARNING: CPU: 1 PID: 0 at fs/ext4/page-io.c:234 ext4_put_io_end_defer+0xf0/0x120 Here's a minimal reproducer (not 100% reliable) (root isn't required): while true; do sync done & while true; do rm -f file touch file chattr -e file echo X >> file chattr +e file done The problem is that in ext4_writepages(), ext4_should_dioread_nolock() (which only returns true on extent-based files) is checked once to set the number of reserved journal credits, and also again later to select the flags for ext4_map_blocks() and copy the reserved journal handle to ext4_io_end::handle. But if EXT4_EXTENTS_FL is being concurrently set, the first check can see dioread_nolock disabled while the later one can see it enabled, causing the reserved handle to unexpectedly be NULL. Since changing EXT4_EXTENTS_FL is uncommon, and there may be other races related to doing so as well, fix this by synchronizing changing EXT4_EXTENTS_FL with ext4_writepages() via the existing s_writepages_rwsem (previously called s_journal_flag_rwsem). This was originally reported by syzbot without a reproducer at https://syzkaller.appspot.com/bug?extid=2202a584a00fffd19fbf, but now that dioread_nolock is the default I also started seeing this when running syzkaller locally. Link: https://lore.kernel.org/r/20200219183047.47417-3-ebiggers@kernel.org Reported-by: syzbot+2202a584a00fffd19fbf@syzkaller.appspotmail.com Fixes: 6b523df4fb5a ("ext4: use transaction reservation for extent conversion in ext4_end_io") Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz> Cc: stable@kernel.org
2020-02-21ext4: rename s_journal_flag_rwsem to s_writepages_rwsemEric Biggers
In preparation for making s_journal_flag_rwsem synchronize ext4_writepages() with changes to both the EXTENTS and JOURNAL_DATA flags (rather than just JOURNAL_DATA as it does currently), rename it to s_writepages_rwsem. Link: https://lore.kernel.org/r/20200219183047.47417-2-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz> Cc: stable@kernel.org
2020-02-21ext4: fix potential race between s_flex_groups online resizing and accessSuraj Jitindar Singh
During an online resize an array of s_flex_groups structures gets replaced so it can get enlarged. If there is a concurrent access to the array and this memory has been reused then this can lead to an invalid memory access. The s_flex_group array has been converted into an array of pointers rather than an array of structures. This is to ensure that the information contained in the structures cannot get out of sync during a resize due to an accessor updating the value in the old structure after it has been copied but before the array pointer is updated. Since the structures them- selves are no longer copied but only the pointers to them this case is mitigated. Link: https://bugzilla.kernel.org/show_bug.cgi?id=206443 Link: https://lore.kernel.org/r/20200221053458.730016-4-tytso@mit.edu Signed-off-by: Suraj Jitindar Singh <surajjs@amazon.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org
2020-02-21Merge tag 'for-linus-5.6-rc3-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "Two small fixes for Xen: - a fix to avoid warnings with new gcc - a fix for incorrectly disabled interrupts when calling _cond_resched()" * tag 'for-linus-5.6-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: Enable interrupts when calling _cond_resched() x86/xen: Distribute switch variables for initialization
2020-02-21Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "It's all straightforward apart from the changes to mmap()/mremap() in relation to their handling of address arguments from userspace with non-zero tag bits in the upper byte. The change to brk() is necessary to fix a nasty user-visible regression in malloc(), but we tightened up mmap() and mremap() at the same time because they also allow the user to create virtual aliases by accident. It's much less likely than brk() to matter in practice, but enforcing the principle of "don't permit the creation of mappings using tagged addresses" leads to a straightforward ABI without having to worry about the "but what if a crazy program did foo?" aspect of things. Summary: - Fix regression in malloc() caused by ignored address tags in brk() - Add missing brackets around argument to untagged_addr() macro - Fix clang build when using binutils assembler - Fix silly typo in virtual memory map documentation" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: mm: Avoid creating virtual address aliases in brk()/mmap()/mremap() docs: arm64: fix trivial spelling enought to enough in memory.rst arm64: memory: Add missing brackets to untagged_addr() macro arm64: lse: Fix LSE atomics with LLVM
2020-02-21Merge tag 'powerpc-5.6-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Some more powerpc fixes for 5.6. This is two weeks worth as I was out sick last week: - Three fixes for the recently added VMAP_STACK on 32-bit. - Three fixes related to hugepages on 8xx (32-bit). - A fix for a bug in our transactional memory handling that could lead to a kernel crash if we saw a page fault during signal delivery. - A fix for a deadlock in our PCI EEH (Enhanced Error Handling) code. - A couple of other minor fixes. Thanks to: Christophe Leroy, Erhard F, Frederic Barrat, Gustavo Luiz Duarte, Larry Finger, Leonardo Bras, Oliver O'Halloran, Sam Bobroff" * tag 'powerpc-5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/entry: Fix an #if which should be an #ifdef in entry_32.S powerpc/xmon: Fix whitespace handling in getstring() powerpc/6xx: Fix power_save_ppc32_restore() with CONFIG_VMAP_STACK powerpc/chrp: Fix enter_rtas() with CONFIG_VMAP_STACK powerpc/32s: Fix DSI and ISI exceptions for CONFIG_VMAP_STACK powerpc/tm: Fix clearing MSR[TS] in current when reclaiming on signal delivery powerpc/8xx: Fix clearing of bits 20-23 in ITLB miss powerpc/hugetlb: Fix 8M hugepages on 8xx powerpc/hugetlb: Fix 512k hugepages on 8xx with 16k page size powerpc/eeh: Fix deadlock handling dead PHB
2020-02-21Merge tag 'linux-watchdog-5.6-rc3' of ↵Linus Torvalds
git://www.linux-watchdog.org/linux-watchdog Pull watchdog fixes from Wim Van Sebroeck: - mtk_wdt needs RESET_CONTROLLER to build - da9062 driver fixes: - fix power management ops - do not ping the hw during stop() - add dependency on I2C * tag 'linux-watchdog-5.6-rc3' of git://www.linux-watchdog.org/linux-watchdog: watchdog: da9062: Add dependency on I2C watchdog: da9062: fix power management ops watchdog: da9062: do not ping the hw during stop() watchdog: fix mtk_wdt.c RESET_CONTROLLER build error
2020-02-21Merge tag 'char-misc-5.6-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some small char/misc driver fixes for 5.6-rc3. Also included in here are some updates for some documentation files that I seem to be maintaining these days. The driver fixes are: - small fixes for the habanalabs driver - fsi driver bugfix All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Documentation/process: Swap out the ambassador for Canonical habanalabs: patched cb equals user cb in device memset habanalabs: do not halt CoreSight during hard reset habanalabs: halt the engines before hard-reset MAINTAINERS: remove unnecessary ':' characters fsi: aspeed: add unspecified HAS_IOMEM dependency COPYING: state that all contributions really are covered by this file Documentation/process: Change Microsoft contact for embargoed hardware issues embargoed-hardware-issues: drop Amazon contact as the email address now bounces Documentation/process: Add Arm contact for embargoed HW issues
2020-02-21Merge tag 'staging-5.6-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver fixes from Greg KH: "Here are some small staging driver fixes for 5.6-rc3, along with the removal of an unused/unneeded driver as well. The android vsoc driver is not needed anymore by anyone, so it was removed. The other driver fixes are: - ashmem bugfixes - greybus audio driver bugfix - wireless driver bugfixes and tiny cleanups to error paths All of these have been in linux-next for a while now with no reported issues" * tag 'staging-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: rtl8723bs: Remove unneeded goto statements staging: rtl8188eu: Remove some unneeded goto statements staging: rtl8723bs: Fix potential overuse of kernel memory staging: rtl8188eu: Fix potential overuse of kernel memory staging: rtl8723bs: Fix potential security hole staging: rtl8188eu: Fix potential security hole staging: greybus: use after free in gb_audio_manager_remove_all() staging: android: Delete the 'vsoc' driver staging: rtl8723bs: fix copy of overlapping memory staging: android: ashmem: Disallow ashmem memory from being remapped staging: vt6656: fix sign of rx_dbm to bb_pre_ed_rssi.
2020-02-21Merge tag 'tty-5.6-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver fixes from Greg KH: "Here are a number of small tty and serial driver fixes for 5.6-rc3 that resolve a bunch of reported issues. They are: - vt selection and ioctl fixes - serdev bugfix - atmel serial driver fixes - qcom serial driver fixes - other minor serial driver fixes All of these have been in linux-next for a while with no reported issues" * tag 'tty-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: vt: selection, close sel_buffer race vt: selection, handle pending signals in paste_selection serial: cpm_uart: call cpm_muram_init before registering console tty: serial: qcom_geni_serial: Fix RX cancel command failure serial: 8250: Check UPF_IRQ_SHARED in advance tty: serial: imx: setup the correct sg entry for tx dma vt: vt_ioctl: fix race in VT_RESIZEX vt: fix scrollback flushing on background consoles tty: serial: tegra: Handle RX transfer in PIO mode if DMA wasn't started tty/serial: atmel: manage shutdown in case of RS485 or ISO7816 mode serdev: ttyport: restore client ops on deregistration serial: ar933x_uart: set UART_CS_{RX,TX}_READY_ORIDE
2020-02-21Merge tag 'usb-5.6-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/Thunderbolt fixes from Greg KH: "Here are a number of small USB driver fixes for 5.6-rc3. Included in here are: - MAINTAINER file updates - USB gadget driver fixes - usb core quirk additions and fixes for regressions - xhci driver fixes - usb serial driver id additions and fixes - thunderbolt bugfix Thunderbolt patches come in through here now that USB4 is really thunderbolt. All of these have been in linux-next for a while with no reported issues" * tag 'usb-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (34 commits) USB: misc: iowarrior: add support for the 100 device thunderbolt: Prevent crash if non-active NVMem file is read usb: gadget: udc-xilinx: Fix xudc_stop() kernel-doc format USB: misc: iowarrior: add support for the 28 and 28L devices USB: misc: iowarrior: add support for 2 OEMed devices USB: Fix novation SourceControl XL after suspend xhci: Fix memory leak when caching protocol extended capability PSI tables - take 2 Revert "xhci: Fix memory leak when caching protocol extended capability PSI tables" MAINTAINERS: Sort entries in database for THUNDERBOLT usb: dwc3: debug: fix string position formatting mixup with ret and len usb: gadget: serial: fix Tx stall after buffer overflow usb: gadget: ffs: ffs_aio_cancel(): Save/restore IRQ flags usb: dwc2: Fix SET/CLEAR_FEATURE and GET_STATUS flows usb: dwc2: Fix in ISOC request length checking usb: gadget: composite: Support more than 500mA MaxPower usb: gadget: composite: Fix bMaxPower for SuperSpeedPlus usb: gadget: u_audio: Fix high-speed max packet size usb: dwc3: gadget: Check for IOC/LST bit in TRB->ctrl fields USB: core: clean up endpoint-descriptor parsing USB: quirks: blacklist duplicate ep on Sound Devices USBPre2 ...
2020-02-21Merge tag 'drm-fixes-2020-02-21' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "Varied fixes for rc3. i915 is the largest, they are seeing some ACPI problems with their CI which hopefully get solved soon [1]. msm has a bunch of fixes for new hw added in the merge, a bunch of amdgpu fixes, and nouveau adds support for some new firmwares for turing tu11x GPUs that were just released into linux-firmware by nvidia, they operate the same as the ones we already have for tu10x so should be fine to hook up. Otherwise it's just misc fixes for panfrost and sun4i. core: - Allow only one rotation argument, and allow zero rotation in video cmdline. i915: - Workaround missing Display Stream Compression (DSC) state readout by forcing modeset when its enabled at probe - Fix EHL port clock voltage level requirements - Fix queuing retire workers on the virtual engine - Fix use of partially initialized waiters - Stop using drm_pci_alloc/drm_pci/free - Fix rewind of RING_TAIL by forcing a context reload - Fix locking on resetting ring->head - Propagate our bug filing URL change to stable kernels panfrost: - Small compiler warning fix for panfrost. - Fix when using performance counters in panfrost when using per fd address space. sun4xi: - Fix dt binding nouveau: - tu11x modesetting fix - ACR/GR firmware support for tu11x (fw is public now) msm: - fix UBWC on GPU and display side for sc7180 - fix DSI suspend/resume issue encountered on sc7180 - fix some breakage on so called "linux-android" devices (fallout from sc7180/a618 support, not seen earlier due to bootloader/firmware differences) - couple other misc fixes amdgpu: - HDCP fixes - xclk fix for raven - GFXOFF fixes" [1] The Intel suspend testing should now be fixed by commit 63fb9623427f ("ACPI: PM: s2idle: Check fixed wakeup events in acpi_s2idle_wake()") * tag 'drm-fixes-2020-02-21' of git://anongit.freedesktop.org/drm/drm: (39 commits) drm/amdgpu/display: clean up hdcp workqueue handling drm/amdgpu: add is_raven_kicker judgement for raven1 drm/i915/gt: Avoid resetting ring->head outside of its timeline mutex drm/i915/execlists: Always force a context reload when rewinding RING_TAIL drm/i915: Wean off drm_pci_alloc/drm_pci_free drm/i915/gt: Protect defer_request() from new waiters drm/i915/gt: Prevent queuing retire workers on the virtual engine drm/i915/dsc: force full modeset whenever DSC is enabled at probe drm/i915/ehl: Update port clock voltage level requirements drm/i915: Update drm/i915 bug filing URL MAINTAINERS: Update drm/i915 bug filing URL drm/i915: Initialise basic fence before acquiring seqno drm/i915/gem: Require per-engine reset support for non-persistent contexts drm/nouveau/kms/gv100-: Re-set LUT after clearing for modesets drm/nouveau/gr/tu11x: initial support drm/nouveau/acr/tu11x: initial support drm/amdgpu/gfx10: disable gfxoff when reading rlc clock drm/amdgpu/gfx9: disable gfxoff when reading rlc clock drm/amdgpu/soc15: fix xclk for raven drm/amd/powerplay: always refetch the enabled features status on dpm enablement ...
2020-02-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: 1) Limit xt_hashlimit hash table size to avoid OOM or hung tasks, from Cong Wang. 2) Fix deadlock in xsk by publishing global consumer pointers when NAPI is finished, from Magnus Karlsson. 3) Set table field properly to RT_TABLE_COMPAT when necessary, from Jethro Beekman. 4) NLA_STRING attributes are not necessary NULL terminated, deal wiht that in IFLA_ALT_IFNAME. From Eric Dumazet. 5) Fix checksum handling in atlantic driver, from Dmitry Bezrukov. 6) Handle mtu==0 devices properly in wireguard, from Jason A. Donenfeld. 7) Fix several lockdep warnings in bonding, from Taehee Yoo. 8) Fix cls_flower port blocking, from Jason Baron. 9) Sanitize internal map names in libbpf, from Toke Høiland-Jørgensen. 10) Fix RDMA race in qede driver, from Michal Kalderon. 11) Fix several false lockdep warnings by adding conditions to list_for_each_entry_rcu(), from Madhuparna Bhowmik. 12) Fix sleep in atomic in mlx5 driver, from Huy Nguyen. 13) Fix potential deadlock in bpf_map_do_batch(), from Yonghong Song. 14) Hey, variables declared in switch statement before any case statements are not initialized. I learn something every day. Get rids of this stuff in several parts of the networking, from Kees Cook. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits) bnxt_en: Issue PCIe FLR in kdump kernel to cleanup pending DMAs. bnxt_en: Improve device shutdown method. net: netlink: cap max groups which will be considered in netlink_bind() net: thunderx: workaround BGX TX Underflow issue ionic: fix fw_status read net: disable BRIDGE_NETFILTER by default net: macb: Properly handle phylink on at91rm9200 s390/qeth: fix off-by-one in RX copybreak check s390/qeth: don't warn for napi with 0 budget s390/qeth: vnicc Fix EOPNOTSUPP precedence openvswitch: Distribute switch variables for initialization net: ip6_gre: Distribute switch variables for initialization net: core: Distribute switch variables for initialization udp: rehash on disconnect net/tls: Fix to avoid gettig invalid tls record bpf: Fix a potential deadlock with bpf_map_do_batch bpf: Do not grab the bucket spinlock by default on htab batch ops ice: Wait for VF to be reset/ready before configuration ice: Don't tell the OS that link is going down ice: Don't reject odd values of usecs set by user ...
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