Add support for the dma-buf exporter role to the frame buffer API. The
importer role isn't meaningful for frame buffer devices, as the frame
buffer device model doesn't allow using externally allocated memory.
taken from an RFC on the linaro-mm-sig mailing list:
http://lists.linaro.org/pipermail/linaro-mm-sig/2012-June/002167.html
Fixes by Mark Yao:
add FBIOGET_DMABUF to compat_ioctl.
Change-Id: I39c9bbdd6b88c6d5ba7524abfc5b560dceb4633e
Signed-off-by: Guillaume Tucker <guillaume.tucker@arm.com>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
(am from https://patchwork.linuxtv.org/patch/12980)
Programmable THRE Interrupt mode in order to increase system
performance.
Change-Id: Ic1ef9ecae0c6feb00170ad97ee3c6245ca3bf068
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
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Merge 4.19.19 into android-4.19
Changes in 4.19.19
amd-xgbe: Fix mdio access for non-zero ports and clause 45 PHYs
net: bridge: Fix ethernet header pointer before check skb forwardable
net: Fix usage of pskb_trim_rcsum
net: phy: marvell: Errata for mv88e6390 internal PHYs
net: phy: mdio_bus: add missing device_del() in mdiobus_register() error handling
net/sched: act_tunnel_key: fix memory leak in case of action replace
net_sched: refetch skb protocol for each filter
openvswitch: Avoid OOB read when parsing flow nlattrs
vhost: log dirty page correctly
mlxsw: pci: Increase PCI SW reset timeout
net: ipv4: Fix memory leak in network namespace dismantle
mlxsw: spectrum_fid: Update dummy FID index
mlxsw: pci: Ring CQ's doorbell before RDQ's
net/sched: cls_flower: allocate mask dynamically in fl_change()
udp: with udp_segment release on error path
ip6_gre: fix tunnel list corruption for x-netns
erspan: build the header with the right proto according to erspan_ver
net: phy: marvell: Fix deadlock from wrong locking
ip6_gre: update version related info when changing link
tcp: allow MSG_ZEROCOPY transmission also in CLOSE_WAIT state
mei: me: mark LBG devices as having dma support
mei: me: add denverton innovation engine device IDs
USB: leds: fix regression in usbport led trigger
USB: serial: simple: add Motorola Tetra TPG2200 device id
USB: serial: pl2303: add new PID to support PL2303TB
ceph: clear inode pointer when snap realm gets dropped by its inode
ASoC: atom: fix a missing check of snd_pcm_lib_malloc_pages
ASoC: rt5514-spi: Fix potential NULL pointer dereference
ASoC: tlv320aic32x4: Kernel OOPS while entering DAPM standby mode
clk: socfpga: stratix10: fix rate calculation for pll clocks
clk: socfpga: stratix10: fix naming convention for the fixed-clocks
inotify: Fix fd refcount leak in inotify_add_watch().
ALSA: hda/realtek - Fix typo for ALC225 model
ALSA: hda - Add mute LED support for HP ProBook 470 G5
ARCv2: lib: memeset: fix doing prefetchw outside of buffer
ARC: adjust memblock_reserve of kernel memory
ARC: perf: map generic branches to correct hardware condition
s390/mm: always force a load of the primary ASCE on context switch
s390/early: improve machine detection
s390/smp: fix CPU hotplug deadlock with CPU rescan
misc: ibmvsm: Fix potential NULL pointer dereference
char/mwave: fix potential Spectre v1 vulnerability
mmc: dw_mmc-bluefield: : Fix the license information
mmc: meson-gx: Free irq in release() callback
staging: rtl8188eu: Add device code for D-Link DWA-121 rev B1
tty: Handle problem if line discipline does not have receive_buf
uart: Fix crash in uart_write and uart_put_char
tty/n_hdlc: fix __might_sleep warning
hv_balloon: avoid touching uninitialized struct page during tail onlining
Drivers: hv: vmbus: Check for ring when getting debug info
vgacon: unconfuse vc_origin when using soft scrollback
CIFS: Fix possible hang during async MTU reads and writes
CIFS: Fix credits calculations for reads with errors
CIFS: Fix credit calculation for encrypted reads with errors
CIFS: Do not reconnect TCP session in add_credits()
smb3: add credits we receive from oplock/break PDUs
Input: xpad - add support for SteelSeries Stratus Duo
Input: input_event - provide override for sparc64
Input: uinput - fix undefined behavior in uinput_validate_absinfo()
acpi/nfit: Block function zero DSMs
acpi/nfit: Fix command-supported detection
scsi: ufs: Use explicit access size in ufshcd_dump_regs
dm thin: fix passdown_double_checking_shared_status()
dm crypt: fix parsing of extended IV arguments
drm/amdgpu: Add APTX quirk for Lenovo laptop
KVM: x86: Fix single-step debugging
KVM: x86: Fix PV IPIs for 32-bit KVM host
KVM: x86: WARN_ONCE if sending a PV IPI returns a fatal error
kvm: x86/vmx: Use kzalloc for cached_vmcs12
KVM/nVMX: Do not validate that posted_intr_desc_addr is page aligned
x86/pkeys: Properly copy pkey state at fork()
x86/selftests/pkeys: Fork() to check for state being preserved
x86/kaslr: Fix incorrect i8254 outb() parameters
x86/entry/64/compat: Fix stack switching for XEN PV
posix-cpu-timers: Unbreak timer rearming
net: sun: cassini: Cleanup license conflict
irqchip/gic-v3-its: Align PCI Multi-MSI allocation on their size
can: dev: __can_get_echo_skb(): fix bogous check for non-existing skb by removing it
can: bcm: check timer values before ktime conversion
can: flexcan: fix NULL pointer exception during bringup
vt: make vt_console_print() compatible with the unicode screen buffer
vt: always call notifier with the console lock held
vt: invoke notifier on screen size change
drm/meson: Fix atomic mode switching regression
bpf: improve verifier branch analysis
bpf: add per-insn complexity limit
bpf: move {prev_,}insn_idx into verifier env
bpf: move tmp variable into ax register in interpreter
bpf: enable access to ax register also from verifier rewrite
bpf: restrict map value pointer arithmetic for unprivileged
bpf: restrict stack pointer arithmetic for unprivileged
bpf: restrict unknown scalars of mixed signed bounds for unprivileged
bpf: fix check_map_access smin_value test when pointer contains offset
bpf: prevent out of bounds speculation on pointer arithmetic
bpf: fix sanitation of alu op with pointer / scalar type from different paths
bpf: fix inner map masking to prevent oob under speculation
s390/smp: Fix calling smp_call_ipl_cpu() from ipl CPU
nvmet-rdma: Add unlikely for response allocated check
nvmet-rdma: fix null dereference under heavy load
Revert "mm, memory_hotplug: initialize struct pages for the full memory section"
usb: dwc3: gadget: Clear req->needs_extra_trb flag on cleanup
ide: fix a typo in the settings proc file name
Input: input_event - fix the CONFIG_SPARC64 mixup
Linux 4.19.19
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 141e5dcaa7 upstream.
Arnd Bergmann pointed out that CONFIG_* cannot be used in a uapi header.
Override with an equivalent conditional.
Fixes: 2e746942eb ("Input: input_event - provide override for sparc64")
Fixes: 152194fe9c ("Input: extend usable life of event timestamps to 2106 on 32 bit systems")
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 2e746942eb upstream.
The usec part of the timeval is defined as
__kernel_suseconds_t tv_usec; /* microseconds */
Arnd noticed that sparc64 is the only architecture that defines
__kernel_suseconds_t as int rather than long.
This breaks the current y2038 fix for kernel as we only access and define
the timeval struct for non-kernel use cases. But, this was hidden by an
another typo in the use of __KERNEL__ qualifier.
Fix the typo, and provide an override for sparc64.
Fixes: 152194fe9c ("Input: extend usable life of event timestamps to 2106 on 32 bit systems")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Android uses ashmem for sharing memory regions. We are looking forward to
migrating all usecases of ashmem to memfd so that we can possibly remove
the ashmem driver in the future from staging while also benefiting from
using memfd and contributing to it. Note staging drivers are also not ABI
and generally can be removed at anytime.
One of the main usecases Android has is the ability to create a region and
mmap it as writeable, then add protection against making any "future"
writes while keeping the existing already mmap'ed writeable-region active.
This allows us to implement a usecase where receivers of the shared
memory buffer can get a read-only view, while the sender continues to
write to the buffer. See CursorWindow documentation in Android for more
details:
https://developer.android.com/reference/android/database/CursorWindow
This usecase cannot be implemented with the existing F_SEAL_WRITE seal.
To support the usecase, this patch adds a new F_SEAL_FUTURE_WRITE seal
which prevents any future mmap and write syscalls from succeeding while
keeping the existing mmap active.
A better way to do F_SEAL_FUTURE_WRITE seal was discussed [1] last week
where we don't need to modify core VFS structures to get the same
behavior of the seal. This solves several side-effects pointed by Andy.
self-tests are provided in later patch to verify the expected semantics.
[1] https://lore.kernel.org/lkml/20181111173650.GA256781@google.com/
[Thanks a lot to Andy for suggestions to improve code]
Cc: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Acked-by: John Stultz <john.stultz@linaro.org>
Change-Id: I6710c045954378f87bfbff6311d372a3b8549064
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Merge 4.19.15 into android-4.19
Changes in 4.19.15
ARM: dts: sun8i: a83t: bananapi-m3: increase vcc-pd voltage to 3.3V
pinctrl: meson: fix pull enable register calculation
arm64: dts: mt7622: fix no more console output on rfb1
powerpc: Fix COFF zImage booting on old powermacs
powerpc/mm: Fix linux page tables build with some configs
HID: ite: Add USB id match for another ITE based keyboard rfkill key quirk
ARM: dts: imx7d-pico: Describe the Wifi clock
ARM: imx: update the cpu power up timing setting on i.mx6sx
ARM: dts: imx7d-nitrogen7: Fix the description of the Wifi clock
IB/mlx5: Block DEVX umem from the non applicable cases
Input: restore EV_ABS ABS_RESERVED
powerpc/mm: Fallback to RAM if the altmap is unusable
drm/amdgpu: Fix DEBUG_LOCKS_WARN_ON(depth <= 0) in amdgpu_ctx.lock
IB/core: Fix oops in netdev_next_upper_dev_rcu()
checkstack.pl: fix for aarch64
xfrm: Fix error return code in xfrm_output_one()
xfrm: Fix bucket count reported to userspace
xfrm: Fix NULL pointer dereference in xfrm_input when skb_dst_force clears the dst_entry.
ieee802154: hwsim: fix off-by-one in parse nested
netfilter: nf_tables: fix suspicious RCU usage in nft_chain_stats_replace()
netfilter: seqadj: re-load tcp header pointer after possible head reallocation
Revert "scsi: qla2xxx: Fix NVMe Target discovery"
scsi: bnx2fc: Fix NULL dereference in error handling
Input: omap-keypad - fix idle configuration to not block SoC idle states
Input: synaptics - enable RMI on ThinkPad T560
ibmvnic: Convert reset work item mutex to spin lock
ibmvnic: Fix non-atomic memory allocation in IRQ context
ieee802154: ca8210: fix possible u8 overflow in ca8210_rx_done
x86/mm: Fix guard hole handling
x86/dump_pagetables: Fix LDT remap address marker
i40e: fix mac filter delete when setting mac address
ixgbe: Fix race when the VF driver does a reset
netfilter: ipset: do not call ipset_nest_end after nla_nest_cancel
netfilter: nat: can't use dst_hold on noref dst
netfilter: nf_conncount: use rb_link_node_rcu() instead of rb_link_node()
bnx2x: Clear fip MAC when fcoe offload support is disabled
bnx2x: Remove configured vlans as part of unload sequence.
bnx2x: Send update-svid ramrod with retry/poll flags enabled
scsi: target: iscsi: cxgbit: fix csk leak
scsi: target: iscsi: cxgbit: add missing spin_lock_init()
mt76: fix potential NULL pointer dereference in mt76_stop_tx_queues
x86, hyperv: remove PCI dependency
drivers: net: xgene: Remove unnecessary forward declarations
net/tls: Init routines in create_ctx
w90p910_ether: remove incorrect __init annotation
net: hns: Incorrect offset address used for some registers.
net: hns: All ports can not work when insmod hns ko after rmmod.
net: hns: Some registers use wrong address according to the datasheet.
net: hns: Fixed bug that netdev was opened twice
net: hns: Clean rx fbd when ae stopped.
net: hns: Free irq when exit from abnormal branch
net: hns: Avoid net reset caused by pause frames storm
net: hns: Fix ntuple-filters status error.
net: hns: Add mac pcs config when enable|disable mac
net: hns: Fix ping failed when use net bridge and send multicast
mac80211: fix a kernel panic when TXing after TXQ teardown
SUNRPC: Fix a race with XPRT_CONNECTING
qed: Fix an error code qed_ll2_start_xmit()
net: macb: fix random memory corruption on RX with 64-bit DMA
net: macb: fix dropped RX frames due to a race
net: macb: add missing barriers when reading descriptors
lan743x: Expand phy search for LAN7431
lan78xx: Resolve issue with changing MAC address
vxge: ensure data0 is initialized in when fetching firmware version information
nl80211: fix memory leak if validate_pae_over_nl80211() fails
mac80211: free skb fraglist before freeing the skb
kbuild: fix false positive warning/error about missing libelf
m68k: Fix memblock-related crashes
virtio: fix test build after uio.h change
lan743x: Remove MAC Reset from initialization
gpio: mvebu: only fail on missing clk if pwm is actually to be used
Input: synaptics - enable SMBus for HP EliteBook 840 G4
net: netxen: fix a missing check and an uninitialized use
qmi_wwan: Fix qmap header retrieval in qmimux_rx_fixup
serial/sunsu: fix refcount leak
auxdisplay: charlcd: fix x/y command parsing
scsi: zfcp: fix posting too many status read buffers leading to adapter shutdown
scsi: lpfc: do not set queue->page_count to 0 if pc_sli4_params.wqpcnt is invalid
fork: record start_time late
zram: fix double free backing device
hwpoison, memory_hotplug: allow hwpoisoned pages to be offlined
mm, devm_memremap_pages: mark devm_memremap_pages() EXPORT_SYMBOL_GPL
mm, devm_memremap_pages: kill mapping "System RAM" support
mm, devm_memremap_pages: fix shutdown handling
mm, devm_memremap_pages: add MEMORY_DEVICE_PRIVATE support
mm, hmm: use devm semantics for hmm_devmem_{add, remove}
mm, hmm: mark hmm_devmem_{add, add_resource} EXPORT_SYMBOL_GPL
mm, swap: fix swapoff with KSM pages
memcg, oom: notify on oom killer invocation from the charge path
sunrpc: fix cache_head leak due to queued request
sunrpc: use SVC_NET() in svcauth_gss_* functions
powerpc: remove old GCC version checks
powerpc: consolidate -mno-sched-epilog into FTRACE flags
powerpc: avoid -mno-sched-epilog on GCC 4.9 and newer
powerpc: Disable -Wbuiltin-requires-header when setjmp is used
kbuild: add -no-integrated-as Clang option unconditionally
kbuild: consolidate Clang compiler flags
Makefile: Export clang toolchain variables
powerpc/boot: Set target when cross-compiling for clang
raid6/ppc: Fix build for clang
dma-direct: do not include SME mask in the DMA supported check
mt76x0: init hw capabilities
media: cx23885: only reset DMA on problematic CPUs
ALSA: cs46xx: Potential NULL dereference in probe
ALSA: usb-audio: Avoid access before bLength check in build_audio_procunit()
ALSA: usb-audio: Check mixer unit descriptors more strictly
ALSA: usb-audio: Fix an out-of-bound read in create_composite_quirks
ALSA: usb-audio: Always check descriptor sizes in parser code
srcu: Lock srcu_data structure in srcu_gp_start()
driver core: Add missing dev->bus->need_parent_lock checks
Fix failure path in alloc_pid()
block: deactivate blk_stat timer in wbt_disable_default()
block: mq-deadline: Fix write completion handling
dlm: fixed memory leaks after failed ls_remove_names allocation
dlm: possible memory leak on error path in create_lkb()
dlm: lost put_lkb on error path in receive_convert() and receive_unlock()
dlm: memory leaks on error path in dlm_user_request()
gfs2: Get rid of potential double-freeing in gfs2_create_inode
gfs2: Fix loop in gfs2_rbm_find
b43: Fix error in cordic routine
selinux: policydb - fix byte order and alignment issues
PCI / PM: Allow runtime PM without callback functions
lockd: Show pid of lockd for remote locks
nfsd4: zero-length WRITE should succeed
arm64: drop linker script hack to hide __efistub_ symbols
arm64: relocatable: fix inconsistencies in linker script and options
leds: pwm: silently error out on EPROBE_DEFER
Revert "powerpc/tm: Unset MSR[TS] if not recheckpointing"
powerpc/tm: Set MSR[TS] just prior to recheckpoint
iio: dac: ad5686: fix bit shift read register
9p/net: put a lower bound on msize
rxe: fix error completion wr_id and qp_num
RDMA/srpt: Fix a use-after-free in the channel release code
iommu/vt-d: Handle domain agaw being less than iommu agaw
sched/fair: Fix infinite loop in update_blocked_averages() by reverting a9e7f6544b
ceph: don't update importing cap's mseq when handing cap export
video: fbdev: pxafb: Fix "WARNING: invalid free of devm_ allocated data"
drivers/perf: hisi: Fixup one DDRC PMU register offset
genwqe: Fix size check
intel_th: msu: Fix an off-by-one in attribute store
power: supply: olpc_battery: correct the temperature units
of: of_node_get()/of_node_put() nodes held in phandle cache
of: __of_detach_node() - remove node from phandle cache
lib: fix build failure in CONFIG_DEBUG_VIRTUAL test
drm/nouveau/drm/nouveau: Check rc from drm_dp_mst_topology_mgr_resume()
drm/vc4: Set ->is_yuv to false when num_planes == 1
drm/rockchip: psr: do not dereference encoder before it is null checked.
drm/amd/display: Fix unintialized max_bpc state values
bnx2x: Fix NULL pointer dereference in bnx2x_del_all_vlans() on some hw
Linux 4.19.15
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit c201e3808e ]
ABS_RESERVED was added in d9ca1c990a and accidentally removed as part of
ffe0e7cf29 when the high-resolution scrolling code was removed.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.19.14 into android-4.19
Changes in 4.19.14
ax25: fix a use-after-free in ax25_fillin_cb()
gro_cell: add napi_disable in gro_cells_destroy
ibmveth: fix DMA unmap error in ibmveth_xmit_start error path
ieee802154: lowpan_header_create check must check daddr
ip6mr: Fix potential Spectre v1 vulnerability
ipv4: Fix potential Spectre v1 vulnerability
ipv6: explicitly initialize udp6_addr in udp_sock_create6()
ipv6: tunnels: fix two use-after-free
ip: validate header length on virtual device xmit
isdn: fix kernel-infoleak in capi_unlocked_ioctl
net: clear skb->tstamp in forwarding paths
net/hamradio/6pack: use mod_timer() to rearm timers
net: ipv4: do not handle duplicate fragments as overlapping
net: macb: restart tx after tx used bit read
net: mvpp2: 10G modes aren't supported on all ports
net: phy: Fix the issue that netif always links up after resuming
netrom: fix locking in nr_find_socket()
net/smc: fix TCP fallback socket release
net: stmmac: Fix an error code in probe()
net/tls: allocate tls context using GFP_ATOMIC
net/wan: fix a double free in x25_asy_open_tty()
packet: validate address length
packet: validate address length if non-zero
ptr_ring: wrap back ->producer in __ptr_ring_swap_queue()
qmi_wwan: Added support for Fibocom NL668 series
qmi_wwan: Added support for Telit LN940 series
qmi_wwan: Add support for Fibocom NL678 series
sctp: initialize sin6_flowinfo for ipv6 addrs in sctp_inet6addr_event
sock: Make sock->sk_stamp thread-safe
tcp: fix a race in inet_diag_dump_icsk()
tipc: check tsk->group in tipc_wait_for_cond()
tipc: compare remote and local protocols in tipc_udp_enable()
tipc: fix a double free in tipc_enable_bearer()
tipc: fix a double kfree_skb()
tipc: use lock_sock() in tipc_sk_reinit()
vhost: make sure used idx is seen before log in vhost_add_used_n()
VSOCK: Send reset control packet when socket is partially bound
xen/netfront: tolerate frags with no data
net/mlx5: Typo fix in del_sw_hw_rule
tipc: check group dests after tipc_wait_for_cond()
net/mlx5e: Remove the false indication of software timestamping support
ipv6: frags: Fix bogus skb->sk in reassembled packets
net/ipv6: Fix a test against 'ipv6_find_idev()' return value
nfp: flower: ensure TCP flags can be placed in IPv6 frame
ipv6: route: Fix return value of ip6_neigh_lookup() on neigh_create() error
mscc: Configured MAC entries should be locked.
net/mlx5e: Cancel DIM work on close SQ
net/mlx5e: RX, Verify MPWQE stride size is in range
net: mvpp2: fix the phylink mode validation
qed: Fix command number mismatch between driver and the mfw
mlxsw: core: Increase timeout during firmware flash process
net/mlx5e: Remove unused UDP GSO remaining counter
net/mlx5e: RX, Fix wrong early return in receive queue poll
net: mvneta: fix operation for 64K PAGE_SIZE
net: Use __kernel_clockid_t in uapi net_stamp.h
r8169: fix WoL device wakeup enable
IB/hfi1: Incorrect sizing of sge for PIO will OOPs
ALSA: rme9652: Fix potential Spectre v1 vulnerability
ALSA: emu10k1: Fix potential Spectre v1 vulnerabilities
ALSA: pcm: Fix potential Spectre v1 vulnerability
ALSA: emux: Fix potential Spectre v1 vulnerabilities
powerpc/fsl: Fix spectre_v2 mitigations reporting
mtd: atmel-quadspi: disallow building on ebsa110
mtd: rawnand: marvell: prevent timeouts on a loaded machine
mtd: rawnand: omap2: Pass the parent of pdev to dma_request_chan()
ALSA: hda: add mute LED support for HP EliteBook 840 G4
ALSA: hda/realtek: Enable audio jacks of ASUS UX391UA with ALC294
ALSA: fireface: fix for state to fetch PCM frames
ALSA: firewire-lib: fix wrong handling payload_length as payload_quadlet
ALSA: firewire-lib: fix wrong assignment for 'out_packet_without_header' tracepoint
ALSA: firewire-lib: use the same print format for 'without_header' tracepoints
ALSA: hda/realtek: Enable the headset mic auto detection for ASUS laptops
ALSA: hda/tegra: clear pending irq handlers
usb: dwc2: host: use hrtimer for NAK retries
USB: serial: pl2303: add ids for Hewlett-Packard HP POS pole displays
USB: serial: option: add Fibocom NL678 series
usb: r8a66597: Fix a possible concurrency use-after-free bug in r8a66597_endpoint_disable()
usb: dwc2: disable power_down on Amlogic devices
Revert "usb: dwc3: pci: Use devm functions to get the phy GPIOs"
usb: roles: Add a description for the class to Kconfig
media: dvb-usb-v2: Fix incorrect use of transfer_flags URB_FREE_BUFFER
staging: wilc1000: fix missing read_write setting when reading data
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Clapper
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Gnawty
s390/pci: fix sleeping in atomic during hotplug
Input: atmel_mxt_ts - don't try to free unallocated kernel memory
Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G
x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off
x86/mm: Drop usage of __flush_tlb_all() in kernel_physical_mapping_init()
KVM: x86: Use jmp to invoke kvm_spurious_fault() from .fixup
arm64: KVM: Make VHE Stage-2 TLB invalidation operations non-interruptible
KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if alloc_kvm_area() fails
platform-msi: Free descriptors in platform_msi_domain_free()
drm/v3d: Skip debugfs dumping GCA on platforms without GCA.
DRM: UDL: get rid of useless vblank initialization
clocksource/drivers/arc_timer: Utilize generic sched_clock
perf machine: Record if a arch has a single user/kernel address space
perf thread: Add fallback functions for cases where cpumode is insufficient
perf tools: Use fallback for sample_addr_correlates_sym() cases
perf script: Use fallbacks for branch stacks
perf pmu: Suppress potential format-truncation warning
perf env: Also consider env->arch == NULL as local operation
ocxl: Fix endiannes bug in ocxl_link_update_pe()
ocxl: Fix endiannes bug in read_afu_name()
ext4: add ext4_sb_bread() to disambiguate ENOMEM cases
ext4: fix possible use after free in ext4_quota_enable
ext4: missing unlock/put_page() in ext4_try_to_write_inline_data()
ext4: fix EXT4_IOC_GROUP_ADD ioctl
ext4: include terminating u32 in size of xattr entries when expanding inodes
ext4: avoid declaring fs inconsistent due to invalid file handles
ext4: force inode writes when nfsd calls commit_metadata()
ext4: check for shutdown and r/o file system in ext4_write_inode()
spi: bcm2835: Fix race on DMA termination
spi: bcm2835: Fix book-keeping of DMA termination
spi: bcm2835: Avoid finishing transfer prematurely in IRQ mode
clk: rockchip: fix typo in rk3188 spdif_frac parent
clk: sunxi-ng: Use u64 for calculation of NM rate
crypto: cavium/nitrox - fix a DMA pool free failure
crypto: chcr - small packet Tx stalls the queue
crypto: testmgr - add AES-CFB tests
crypto: cfb - fix decryption
cgroup: fix CSS_TASK_ITER_PROCS
cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
btrfs: dev-replace: go back to suspended state if target device is missing
btrfs: dev-replace: go back to suspend state if another EXCL_OP is running
btrfs: skip file_extent generation check for free_space_inode in run_delalloc_nocow
Btrfs: fix fsync of files with multiple hard links in new directories
btrfs: run delayed items before dropping the snapshot
Btrfs: send, fix race with transaction commits that create snapshots
brcmfmac: fix roamoff=1 modparam
brcmfmac: Fix out of bounds memory access during fw load
powerpc/tm: Unset MSR[TS] if not recheckpointing
dax: Don't access a freed inode
dax: Use non-exclusive wait in wait_entry_unlocked()
f2fs: read page index before freeing
f2fs: fix validation of the block count in sanity_check_raw_super
f2fs: sanity check of xattr entry size
serial: uartps: Fix interrupt mask issue to handle the RX interrupts properly
media: cec: keep track of outstanding transmits
media: cec-pin: fix broken tx_ignore_nack_until_eom error injection
media: rc: cec devices do not have a lirc chardev
media: imx274: fix stack corruption in imx274_read_reg
media: vivid: free bitmap_cap when updating std/timings/etc.
media: vb2: check memory model for VIDIOC_CREATE_BUFS
media: v4l2-tpg: array index could become negative
tools lib traceevent: Fix processing of dereferenced args in bprintk events
MIPS: math-emu: Write-protect delay slot emulation pages
MIPS: c-r4k: Add r4k_blast_scache_node for Loongson-3
MIPS: Ensure pmd_present() returns false after pmd_mknotpresent()
MIPS: Align kernel load address to 64KB
MIPS: Expand MIPS32 ASIDs to 64 bits
MIPS: OCTEON: mark RGMII interface disabled on OCTEON III
MIPS: Fix a R10000_LLSC_WAR logic in atomic.h
CIFS: Fix error mapping for SMB2_LOCK command which caused OFD lock problem
smb3: fix large reads on encrypted connections
arm64: KVM: Avoid setting the upper 32 bits of VTCR_EL2 to 1
arm/arm64: KVM: vgic: Force VM halt when changing the active state of GICv3 PPIs/SGIs
ARM: dts: exynos: Specify I2S assigned clocks in proper node
rtc: m41t80: Correct alarm month range with RTC reads
KVM: arm/arm64: vgic: Do not cond_resched_lock() with IRQs disabled
KVM: arm/arm64: vgic: Cap SPIs to the VM-defined maximum
KVM: arm/arm64: vgic-v2: Set active_source to 0 when restoring state
KVM: arm/arm64: vgic: Fix off-by-one bug in vgic_get_irq()
iommu/arm-smmu-v3: Fix big-endian CMD_SYNC writes
arm64: compat: Avoid sending SIGILL for unallocated syscall numbers
tpm: tpm_try_transmit() refactor error flow.
tpm: tpm_i2c_nuvoton: use correct command duration for TPM 2.x
spi: bcm2835: Unbreak the build of esoteric configs
MIPS: Only include mmzone.h when CONFIG_NEED_MULTIPLE_NODES=y
Linux 4.19.14
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit e2c4cf7f98 ]
Herton reports the following error when building a userspace program that
includes net_stamp.h:
In file included from foo.c:2:
/usr/include/linux/net_tstamp.h:158:2: error: unknown type name
‘clockid_t’
clockid_t clockid; /* reference clockid */
^~~~~~~~~
Fix it by using __kernel_clockid_t in place of clockid_t.
Fixes: 80b14dee2b ("net: Add a new socket option for a future transmit time.")
Cc: Timothy Redaelli <tredaelli@redhat.com>
Reported-by: Herton R. Krzesinski <herton@redhat.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Tested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Android uses ashmem for sharing memory regions. We are looking forward
to migrating all usecases of ashmem to memfd so that we can possibly
remove the ashmem driver in the future from staging while also
benefiting from using memfd and contributing to it. Note staging drivers
are also not ABI and generally can be removed at anytime.
One of the main usecases Android has is the ability to create a region
and mmap it as writeable, then add protection against making any
"future" writes while keeping the existing already mmap'ed
writeable-region active. This allows us to implement a usecase where
receivers of the shared memory buffer can get a read-only view, while
the sender continues to write to the buffer.
See CursorWindow documentation in Android for more details:
https://developer.android.com/reference/android/database/CursorWindow
This usecase cannot be implemented with the existing F_SEAL_WRITE seal.
To support the usecase, this patch adds a new F_SEAL_FUTURE_WRITE seal
which prevents any future mmap and write syscalls from succeeding while
keeping the existing mmap active. The following program shows the seal
working in action:
#include <stdio.h>
#include <errno.h>
#include <sys/mman.h>
#include <linux/memfd.h>
#include <linux/fcntl.h>
#include <asm/unistd.h>
#include <unistd.h>
#define F_SEAL_FUTURE_WRITE 0x0010
#define REGION_SIZE (5 * 1024 * 1024)
int memfd_create_region(const char *name, size_t size)
{
int ret;
int fd = syscall(__NR_memfd_create, name, MFD_ALLOW_SEALING);
if (fd < 0) return fd;
ret = ftruncate(fd, size);
if (ret < 0) { close(fd); return ret; }
return fd;
}
int main() {
int ret, fd;
void *addr, *addr2, *addr3, *addr1;
ret = memfd_create_region("test_region", REGION_SIZE);
printf("ret=%d\n", ret);
fd = ret;
// Create map
addr = mmap(0, REGION_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (addr == MAP_FAILED)
printf("map 0 failed\n");
else
printf("map 0 passed\n");
if ((ret = write(fd, "test", 4)) != 4)
printf("write failed even though no future-write seal "
"(ret=%d errno =%d)\n", ret, errno);
else
printf("write passed\n");
addr1 = mmap(0, REGION_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (addr1 == MAP_FAILED)
perror("map 1 prot-write failed even though no seal\n");
else
printf("map 1 prot-write passed as expected\n");
ret = fcntl(fd, F_ADD_SEALS, F_SEAL_FUTURE_WRITE |
F_SEAL_GROW |
F_SEAL_SHRINK);
if (ret == -1)
printf("fcntl failed, errno: %d\n", errno);
else
printf("future-write seal now active\n");
if ((ret = write(fd, "test", 4)) != 4)
printf("write failed as expected due to future-write seal\n");
else
printf("write passed (unexpected)\n");
addr2 = mmap(0, REGION_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (addr2 == MAP_FAILED)
perror("map 2 prot-write failed as expected due to seal\n");
else
printf("map 2 passed\n");
addr3 = mmap(0, REGION_SIZE, PROT_READ, MAP_SHARED, fd, 0);
if (addr3 == MAP_FAILED)
perror("map 3 failed\n");
else
printf("map 3 prot-read passed as expected\n");
}
The output of running this program is as follows:
ret=3
map 0 passed
write passed
map 1 prot-write passed as expected
future-write seal now active
write failed as expected due to future-write seal
map 2 prot-write failed as expected due to seal
: Permission denied
map 3 prot-read passed as expected
Cc: jreck@google.com
Cc: john.stultz@linaro.org
Cc: tkjos@google.com
Cc: gregkh@linuxfoundation.org
Cc: hch@infradead.org
Reviewed-by: John Stultz <john.stultz@linaro.org>
Reported-by: Jann Horn <jannh@google.com>
Change-id: Ie702c08f1f41ce78e5e8db3f415446ceedb01795
Bug: 113362644
Verified with test program at: https://lore.kernel.org/patchwork/patch/1008117/
Backport link: https://lore.kernel.org/patchwork/patch/1014892/
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
* linux-linaro-lsk-v4.4-android: (812 commits)
Linux 4.4.167
mac80211: ignore NullFunc frames in the duplicate detection
mac80211: fix reordering of buffered broadcast packets
mac80211: ignore tx status for PS stations in ieee80211_tx_status_ext
mac80211: Clear beacon_int in ieee80211_do_stop
mac80211_hwsim: Timer should be initialized before device registered
kgdboc: fix KASAN global-out-of-bounds bug in param_set_kgdboc_var()
tty: serial: 8250_mtk: always resume the device in probe.
cifs: Fix separator when building path from dentry
Staging: lustre: remove two build warnings
xhci: Prevent U1/U2 link pm states if exit latency is too long
SUNRPC: Fix leak of krb5p encode pages
virtio/s390: fix race in ccw_io_helper()
virtio/s390: avoid race on vcdev->config
ALSA: pcm: Fix interval evaluation with openmin/max
ALSA: pcm: Call snd_pcm_unlink() conditionally at closing
ALSA: pcm: Fix starvation on down_write_nonblock()
ALSA: hda: Add support for AMD Stoney Ridge
ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in card.c
USB: check usb_get_extra_descriptor for proper size
...
Conflicts:
drivers/gpu/drm/rockchip/rockchip_drm_drv.c
drivers/usb/host/xhci-ring.c
Change-Id: I4304b0875908403a7d88a0d77da52cea04563c11
This is a different approach from the first attempt in f2c6df7dbf
("loop: support 4k physical blocksize"). Rather than extending
LOOP_{GET,SET}_STATUS, add a separate ioctl just for setting the block
size.
Bug: 117823094
Change-Id: I8e69b8839d7fee3be564cbfce1797ce108e1aa1e
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
(cherry picked from commit 89e4fdecb5)
Signed-off-by: Martijn Coenen <maco@android.com>
(cherry picked from commit 6edf1ad773206e5e1ec76b6b8492c83eecae031d)
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Since the kernel now modifies the timeout, make it possible to retrieve
the current value.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
(cherry picked from commit 95d1544eb6)
Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Conflicts:
Documentation/media/uapi/rc/lirc-set-rec-timeout.rst
This makes it possible to use the various iMON remotes with any raw IR
RC device.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
(cherry picked from commit 447dcc0cf1)
Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Since commit 02d742f4b2 ("media: lirc: lirc daemon fails to detect raw
IR device"), the feature LIRC_CAN_SEND_SCANCODE is no longer used as it
tripped up lircd. The ability to send scancodes for IR Tx is implied by
LIRC_CAN_SEND_PULSE (i.e. any device that can send can use IR Tx encoders).
So, remove LIRC_CAN_SEND_SCANCODE since it never used. This fixes:
Documentation/output/lirc.h.rst:6: WARNING: undefined label:
lirc-can-send-scancode (if the link has no caption the label must precede
a section header
As this flag was added for kernel 4.16, let's remove it, while not too
late.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
(cherry picked from commit 2fe4c22c53)
Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
This introduces a new lirc mode: scancode. Any device which can send raw IR
can now also send scancodes.
int main()
{
int mode, fd = open("/dev/lirc0", O_RDWR);
mode = LIRC_MODE_SCANCODE;
if (ioctl(fd, LIRC_SET_SEND_MODE, &mode)) {
// kernel too old or lirc does not support transmit
}
struct lirc_scancode scancode = {
.scancode = 0x1e3d,
.rc_proto = RC_PROTO_RC5,
};
write(fd, &scancode, sizeof(scancode));
close(fd);
}
The other fields of lirc_scancode must be set to 0.
Note that toggle (rc5, rc6) and repeats (nec) are not implemented. Nor is
there a method for holding down a key for a period.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
(cherry picked from commit 9b6192589b)
Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
While reviewing the documentation gaps on LIRC, it was
noticed that several ioctls aren't used by any LIRC drivers
(nor at staging or mainstream).
It doesn't make sense to document them, as they're not used
anywhere. So, let's remove those from the lirc header.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
(cherry picked from commit d55f09abe2)
Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
The file include/media/lirc.h describes a public interface and
should thus be a public header. See kernel bug
https://bugzilla.kernel.org/show_bug.cgi?id=75751 which has
a manpage describing the interface + an acknowledgment that this
info belongs to uapi.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
(cherry picked from commit b7be755733)
Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
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Merge 4.19.7 into android-4.19
Changes in 4.19.7
mm/huge_memory: rename freeze_page() to unmap_page()
mm/huge_memory: splitting set mapping+index before unfreeze
mm/huge_memory: fix lockdep complaint on 32-bit i_size_read()
mm/khugepaged: collapse_shmem() stop if punched or truncated
mm/khugepaged: fix crashes due to misaccounted holes
mm/khugepaged: collapse_shmem() remember to clear holes
mm/khugepaged: minor reorderings in collapse_shmem()
mm/khugepaged: collapse_shmem() without freezing new_page
mm/khugepaged: collapse_shmem() do not crash on Compound
lan743x: Enable driver to work with LAN7431
lan743x: fix return value for lan743x_tx_napi_poll
net: don't keep lonely packets forever in the gro hash
net: gemini: Fix copy/paste error
net: thunderx: set tso_hdrs pointer to NULL in nicvf_free_snd_queue
packet: copy user buffers before orphan or clone
rapidio/rionet: do not free skb before reading its length
s390/qeth: fix length check in SNMP processing
usbnet: ipheth: fix potential recvmsg bug and recvmsg bug 2
net: thunderx: set xdp_prog to NULL if bpf_prog_add fails
net: skb_scrub_packet(): Scrub offload_fwd_mark
virtio-net: disable guest csum during XDP set
virtio-net: fail XDP set if guest csum is negotiated
net/dim: Update DIM start sample after each DIM iteration
tcp: defer SACK compression after DupThresh
net: phy: add workaround for issue where PHY driver doesn't bind to the device
tipc: fix lockdep warning during node delete
x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
x86/speculation: Propagate information about RSB filling mitigation to sysfs
x86/speculation: Add RETPOLINE_AMD support to the inline asm CALL_NOSPEC variant
x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support
x86/retpoline: Remove minimal retpoline support
x86/speculation: Update the TIF_SSBD comment
x86/speculation: Clean up spectre_v2_parse_cmdline()
x86/speculation: Remove unnecessary ret variable in cpu_show_common()
x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common()
x86/speculation: Disable STIBP when enhanced IBRS is in use
x86/speculation: Rename SSBD update functions
x86/speculation: Reorganize speculation control MSRs update
sched/smt: Make sched_smt_present track topology
x86/Kconfig: Select SCHED_SMT if SMP enabled
sched/smt: Expose sched_smt_present static key
x86/speculation: Rework SMT state change
x86/l1tf: Show actual SMT state
x86/speculation: Reorder the spec_v2 code
x86/speculation: Mark string arrays const correctly
x86/speculataion: Mark command line parser data __initdata
x86/speculation: Unify conditional spectre v2 print functions
x86/speculation: Add command line control for indirect branch speculation
x86/speculation: Prepare for per task indirect branch speculation control
x86/process: Consolidate and simplify switch_to_xtra() code
x86/speculation: Avoid __switch_to_xtra() calls
x86/speculation: Prepare for conditional IBPB in switch_mm()
ptrace: Remove unused ptrace_may_access_sched() and MODE_IBRS
x86/speculation: Split out TIF update
x86/speculation: Prevent stale SPEC_CTRL msr content
x86/speculation: Prepare arch_smt_update() for PRCTL mode
x86/speculation: Add prctl() control for indirect branch speculation
x86/speculation: Enable prctl mode for spectre_v2_user
x86/speculation: Add seccomp Spectre v2 user space protection mode
x86/speculation: Provide IBPB always command line options
userfaultfd: shmem/hugetlbfs: only allow to register VM_MAYWRITE vmas
kvm: mmu: Fix race in emulated page table writes
kvm: svm: Ensure an IBPB on all affected CPUs when freeing a vmcb
KVM: nVMX/nSVM: Fix bug which sets vcpu->arch.tsc_offset to L1 tsc_offset
KVM: x86: Fix kernel info-leak in KVM_HC_CLOCK_PAIRING hypercall
KVM: LAPIC: Fix pv ipis use-before-initialization
KVM: X86: Fix scan ioapic use-before-initialization
KVM: VMX: re-add ple_gap module parameter
xtensa: enable coprocessors that are being flushed
xtensa: fix coprocessor context offset definitions
xtensa: fix coprocessor part of ptrace_{get,set}xregs
udf: Allow mounting volumes with incorrect identification strings
btrfs: Always try all copies when reading extent buffers
Btrfs: ensure path name is null terminated at btrfs_control_ioctl
Btrfs: fix rare chances for data loss when doing a fast fsync
Btrfs: fix race between enabling quotas and subvolume creation
btrfs: relocation: set trans to be NULL after ending transaction
PCI: layerscape: Fix wrong invocation of outbound window disable accessor
PCI: dwc: Fix MSI-X EP framework address calculation bug
PCI: Fix incorrect value returned from pcie_get_speed_cap()
arm64: dts: rockchip: Fix PCIe reset polarity for rk3399-puma-haikou.
x86/MCE/AMD: Fix the thresholding machinery initialization order
x86/fpu: Disable bottom halves while loading FPU registers
perf/x86/intel: Move branch tracing setup to the Intel-specific source file
perf/x86/intel: Add generic branch tracing check to intel_pmu_has_bts()
perf/x86/intel: Disallow precise_ip on BTS events
fs: fix lost error code in dio_complete
ALSA: wss: Fix invalid snd_free_pages() at error path
ALSA: ac97: Fix incorrect bit shift at AC97-SPSA control write
ALSA: control: Fix race between adding and removing a user element
ALSA: sparc: Fix invalid snd_free_pages() at error path
ALSA: hda: Add ASRock N68C-S UCC the power_save blacklist
ALSA: hda/realtek - Support ALC300
ALSA: hda/realtek - fix headset mic detection for MSI MS-B171
ALSA: hda/realtek - fix the pop noise on headphone for lenovo laptops
ALSA: hda/realtek - Add auto-mute quirk for HP Spectre x360 laptop
function_graph: Create function_graph_enter() to consolidate architecture code
ARM: function_graph: Simplify with function_graph_enter()
microblaze: function_graph: Simplify with function_graph_enter()
x86/function_graph: Simplify with function_graph_enter()
nds32: function_graph: Simplify with function_graph_enter()
powerpc/function_graph: Simplify with function_graph_enter()
sh/function_graph: Simplify with function_graph_enter()
sparc/function_graph: Simplify with function_graph_enter()
parisc: function_graph: Simplify with function_graph_enter()
riscv/function_graph: Simplify with function_graph_enter()
s390/function_graph: Simplify with function_graph_enter()
arm64: function_graph: Simplify with function_graph_enter()
MIPS: function_graph: Simplify with function_graph_enter()
function_graph: Make ftrace_push_return_trace() static
function_graph: Use new curr_ret_depth to manage depth instead of curr_ret_stack
function_graph: Have profiler use curr_ret_stack and not depth
function_graph: Move return callback before update of curr_ret_stack
function_graph: Reverse the order of pushing the ret_stack and the callback
binder: fix race that allows malicious free of live buffer
ext2: initialize opts.s_mount_opt as zero before using it
ext2: fix potential use after free
ASoC: intel: cht_bsw_max98090_ti: Add quirk for boards using pmc_plt_clk_0
ASoC: pcm186x: Fix device reset-registers trigger value
ARM: dts: rockchip: Remove @0 from the veyron memory node
dmaengine: at_hdmac: fix memory leak in at_dma_xlate()
dmaengine: at_hdmac: fix module unloading
staging: most: use format specifier "%s" in snprintf
staging: vchiq_arm: fix compat VCHIQ_IOC_AWAIT_COMPLETION
staging: mt7621-dma: fix potentially dereferencing uninitialized 'tx_desc'
staging: mt7621-pinctrl: fix uninitialized variable ngroups
staging: rtl8723bs: Fix incorrect sense of ether_addr_equal
staging: rtl8723bs: Add missing return for cfg80211_rtw_get_station
USB: usb-storage: Add new IDs to ums-realtek
usb: core: quirks: add RESET_RESUME quirk for Cherry G230 Stream series
Revert "usb: dwc3: gadget: skip Set/Clear Halt when invalid"
iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers
iio:st_magn: Fix enable device after trigger
lib/test_kmod.c: fix rmmod double free
mm: cleancache: fix corruption on missed inode invalidation
mm: use swp_offset as key in shmem_replace_page()
Drivers: hv: vmbus: check the creation_status in vmbus_establish_gpadl()
misc: mic/scif: fix copy-paste error in scif_create_remote_lookup
Linux 4.19.7
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Add support for the Adiantum encryption mode to fscrypt. Adiantum is a
tweakable, length-preserving encryption mode with security provably
reducible to that of XChaCha12 and AES-256, subject to a security bound.
It's also a true wide-block mode, unlike XTS. See the paper
"Adiantum: length-preserving encryption for entry-level processors"
(https://eprint.iacr.org/2018/720.pdf) for more details. Also see
commit 059c2a4d8e ("crypto: adiantum - add Adiantum support").
On sufficiently long messages, Adiantum's bottlenecks are XChaCha12 and
the NH hash function. These algorithms are fast even on processors
without dedicated crypto instructions. Adiantum makes it feasible to
enable storage encryption on low-end mobile devices that lack AES
instructions; currently such devices are unencrypted. On ARM Cortex-A7,
on 4096-byte messages Adiantum encryption is about 4 times faster than
AES-256-XTS encryption; decryption is about 5 times faster.
In fscrypt, Adiantum is suitable for encrypting both file contents and
names. With filenames, it fixes a known weakness: when two filenames in
a directory share a common prefix of >= 16 bytes, with CTS-CBC their
encrypted filenames share a common prefix too, leaking information.
Adiantum does not have this problem.
Since Adiantum also accepts long tweaks (IVs), it's also safe to use the
master key directly for Adiantum encryption rather than deriving
per-file keys, provided that the per-file nonce is included in the IVs
and the master key isn't used for any other encryption mode. This
configuration saves memory and improves performance. A new fscrypt
policy flag is added to allow users to opt-in to this configuration.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
(cherry picked from commit 889645b87e96cecbdf7d76ab86447d1f1c6b41d3
https://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt.git master)
Bug: 112008522
Test: For regression testing, built the kernel for x86_64 KVM and ran
the encryption xfstests using kvm-xfstests:
kvm-xfstests -c ext4,f2fs -g encrypt
Tests for the Adiantum mode and "direct key" specifically aren't yet
included in xfstests, but I also tried it manually with the
following (run in the kvm-xfstests test appliance):
cd /
umount /vdc &> /dev/null
mkfs.f2fs -O encrypt -f /dev/vdc
mount /vdc
cd /vdc
rm -rf edir
mkdir edir
. ~/xfstests/common/encrypt
KEYCTL_PROG=keyctl
FSTYP=fscrypt
_new_session_keyring
k=$(_generate_encryption_key)
xfs_io -c "set_encpolicy -c 9 -n 9 -f 0x4 $k" edir/
cp -a /usr edir/
diff -r /usr edir/usr/
dmesg should show that Adiantum is being used:
fscrypt: Adiantum using implementation "adiantum(xchacha12-generic,aes-aesni,nhpoly1305-generic)"
Change-Id: I29ffaa7ef9cbd23d2f6ed428814c607227241ce9
Signed-off-by: Eric Biggers <ebiggers@google.com>
Define a filesystem magic value to be used for sdcardfs.
Bug: 120446149
Change-Id: I54daa1452aa6a3ce0401d7d923e0a897f0c26d96
Signed-off-by: Daniel Rosenberg <drosen@google.com>
This allows the context manager to retrieve information about nodes
that it holds a reference to, such as the current number of
references to those nodes.
Such information can for example be used to determine whether the
servicemanager is the only process holding a reference to a node.
This information can then be passed on to the process holding the
node, which can in turn decide whether it wants to shut down to
reduce resource usage.
Bug: 79983843
Change-Id: I21e52ed1ca2137f7bfdc0300365fb1285b7e3d70
Signed-off-by: Martijn Coenen <maco@android.com>
Send notifications when the label becomes active after an idle period.
Send netlink message notifications in addition to sysfs notifications.
Using a uevent with
subsystem=xt_idletimer
INTERFACE=...
STATE={active,inactive}
This is backport from common android-3.0
commit: beb914e987
with uevent support instead of a new netlink message type.
Bug: 120445672
Change-Id: I31677ef00c94b5f82c8457e5bf9e5e584c23c523
Signed-off-by: Ashish Sharma <ashishsharma@google.com>
Signed-off-by: JP Abgrall <jpa@google.com>
[astrachan: Folded the following changes into this patch:
ee0b238fada5 ("netfilter: xt_IDLETIMER: time-stamp and suspend/resume handling.")
728c058a495e ("netfilter: xt_IDLETIMER: Adds the uid field in the msg")
5ebea489d44c ("netfilter: xt_IDLETIMER: Fix use after free condition during work")
5ab69d7ba2c5 ("netfilter: xt_IDLETIMER: Use fullsock when querying uid")]
Signed-off-by: Alistair Strachan <astrachan@google.com>
USB accessory mode allows users to connect USB host hardware
specifically designed for Android-powered devices. The accessories
must adhere to the Android accessory protocol outlined in the
http://accessories.android.com documentation. This allows
Android devices that cannot act as a USB host to still interact with
USB hardware. When an Android device is in USB accessory mode, the
attached Android USB accessory acts as the host, provides power
to the USB bus, and enumerates connected devices.
Bug: 63740241
Bug: 120441124
Change-Id: I67964b50d278f3c0471d47efbb7b0973a3502681
[badhri: f_accessory is being migrated to userspace.]
Signed-off-by: Mike Lockwood <lockwood@android.com>
[AmitP: Folded following android-4.9 commit changes into this patch
ceb2f0aac624 ("ANDROID: usb: gadget: accessory: Fix section mismatch")
Parts of e27543931009 ("ANDROID: usb: gadget: Fixes and hacks to make android usb gadget compile on 3.8")
1b07ec751563 ("ANDROID: drivers: usb: gadget: 64-bit related type fixes")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
[astrachan: Folded the following changes into this patch:
9d5891d516e2 ("ANDROID: usb: gadget: f_accessory: Add ACCESSORY_SET_AUDIO_MODE control request and ioctl")
dc66cfce9622 ("ANDROID: usb: gadget: f_accessory: Add support for HID input devices")
5f1ac9c2871b ("ANDROID: usb: gadget: f_accessory: move userspace interface to uapi")
9a6241722cd8 ("ANDROID: usb: gadget: f_accessory: Enabled Zero Length Packet (ZLP) for acc_write")
31a0ecd5a825 ("ANDROID: usb: gadget: f_accessory: check for accessory device before disconnecting HIDs")
580721fa6cbc ("ANDROID: usb: gadget: f_accessory: Migrate to USB_FUNCTION API")
7f407172fb28 ("ANDROID: usb: gadget: f_accessory: Fix for UsbAccessory clean unbind.")
ebc98ac5a22f ("ANDROID: usb: gadget: f_accessory: fix false disconnect due to a signal sent to the reading process")
71c6dc5ffdab ("ANDROID: usb: gadget: f_accessory: assign no-op request complete callbacks")
675047ee68e9 ("ANDROID: usb: gadget: f_accessory: Move gadget functions code")
b2bedaa5c7df ("CHROMIUM: usb: gadget: f_accessory: add .raw_request callback")]
Signed-off-by: Alistair Strachan <astrachan@google.com>
Userspace processes often have multiple allocators that each do
anonymous mmaps to get memory. When examining memory usage of
individual processes or systems as a whole, it is useful to be
able to break down the various heaps that were allocated by
each layer and examine their size, RSS, and physical memory
usage.
This patch adds a user pointer to the shared union in
vm_area_struct that points to a null terminated string inside
the user process containing a name for the vma. vmas that
point to the same address will be merged, but vmas that
point to equivalent strings at different addresses will
not be merged.
Userspace can set the name for a region of memory by calling
prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, start, len, (unsigned long)name);
Setting the name to NULL clears it.
The names of named anonymous vmas are shown in /proc/pid/maps
as [anon:<name>] and in /proc/pid/smaps in a new "Name" field
that is only present for named vmas. If the userspace pointer
is no longer valid all or part of the name will be replaced
with "<fault>".
The idea to store a userspace pointer to reduce the complexity
within mm (at the expense of the complexity of reading
/proc/pid/mem) came from Dave Hansen. This results in no
runtime overhead in the mm subsystem other than comparing
the anon_name pointers when considering vma merging. The pointer
is stored in a union with fieds that are only used on file-backed
mappings, so it does not increase memory usage.
Includes fix from Jed Davis <jld@mozilla.com> for typo in
prctl_set_vma_anon_name, which could attempt to set the name
across two vmas at the same time due to a typo, which might
corrupt the vma list. Fix it to use tmp instead of end to limit
the name setting to a single vma at a time.
Bug: 120441514
Change-Id: I9aa7b6b5ef536cd780599ba4e2fba8ceebe8b59f
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
[AmitP: Fix get_user_pages_remote() call to align with upstream commit
5b56d49fc3 ("mm: add locked parameter to get_user_pages_remote()")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
The rockchip IQ tool sends data via usb uvc. The data buf
of v4l2_event is used for IQ tool userspace on uvc device
side to receive vendor specific data from host, the max
length of data maybe 4096 bytes, so increase the data length
of v4l2_event to 4100.
I have already tested the usb host uvc function, it works
well with this patch.
Note:
The userspace need to update the data length of v4l2_event
to 4100 synchronously.
Change-Id: I1a4673d50137760e190a17c6981740952fac2ca7
Signed-off-by: William Wu <william.wu@rock-chips.com>
[ Upstream commit 4269fea768 ]
Laura found a better way to do this from userspace without requiring
kernel infrastructure, revert this.
Fixes: 978d8f9055 ("netfilter: nft_numgen: add map lookups for numgen random operations")
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 5a8de47b3c ]
With 4.19, programs like ebtables fail to build when they include
"linux/netfilter_bridge.h". It is caused by commit 94276fa8a2 which
added a use of INT_MIN and INT_MAX to the header:
: In file included from /usr/include/linux/netfilter_bridge/ebtables.h:18,
: from include/ebtables_u.h:28,
: from communication.c:23:
: /usr/include/linux/netfilter_bridge.h:30:20: error: 'INT_MIN' undeclared here (not in a function)
: NF_BR_PRI_FIRST = INT_MIN,
: ^~~~~~~
Define these constants by including "limits.h" when !__KERNEL__ (the
same way as for other netfilter_* headers).
Fixes: 94276fa8a2 ("netfilter: bridge: Expose nf_tables bridge hook priorities through uapi")
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Máté Eckl <ecklm94@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Add a new interface for userspace to preallocate memory that can be
used with usbfs. This gives two primary benefits:
- Zerocopy; data no longer needs to be copied between the userspace
and the kernel, but can instead be read directly by the driver from
userspace's buffers. This works for all kinds of transfers (even if
nonsensical for control and interrupt transfers); isochronous also
no longer need to memset() the buffer to zero to avoid leaking kernel data.
- Once the buffers are allocated, USB transfers can no longer fail due to
memory fragmentation; previously, long-running programs could run into
problems finding a large enough contiguous memory chunk, especially on
embedded systems or at high rates.
Memory is allocated by using mmap() against the usbfs file descriptor,
and similarly deallocated by munmap(). Once memory has been allocated,
using it as pointers to a bulk or isochronous operation means you will
automatically get zerocopy behavior. Note that this also means you cannot
modify outgoing data until the transfer is complete. The same holds for
data on the same cache lines as incoming data; DMA modifying them at the
same time could lead to your changes being overwritten.
There's a new capability USBDEVFS_CAP_MMAP that userspace can query to see
if the running kernel supports this functionality, if just trying mmap() is
not acceptable.
Largely based on a patch by Markus Rechberger with some updates. The original
patch can be found at:
http://sundtek.de/support/devio_mmap_v0.4.diff
Change-Id: I22f101b6e1a1fb027288f1c345da1750c39396c9
Signed-off-by: Steinar H. Gunderson <sesse@google.com>
Signed-off-by: Markus Rechberger <mrechberger@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: William Wu <william.wu@rock-chips.com>
(cherry picked from commit f7d34b445a)
[ Upstream commit fd82d61ba1 ]
As defined in rfc6525#section-6.1.3, SCTP_STREAM_CHANGE_DENIED
and SCTP_STREAM_CHANGE_FAILED should be used instead of
SCTP_ASSOC_CHANGE_DENIED and SCTP_ASSOC_CHANGE_FAILED.
To keep the compatibility, fix it by adding two macros.
Fixes: b444153fb5 ("sctp: add support for generating add stream change event notification")
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 12480e3b16 ]
According to rfc8260#section-4.3.2, SCTP_SS_DEFAULT is required to
defined as SCTP_SS_FCFS or SCTP_SS_RR.
SCTP_SS_FCFS is used for SCTP_SS_DEFAULT's value in this patch.
Fixes: 5bbbbe32a4 ("sctp: introduce stream scheduler foundations")
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit aba118389a upstream.
Consistently use types provided by <linux/types.h> via <drm/drm.h>
to fix the following linux/kfd_ioctl.h userspace compilation errors:
/usr/include/linux/kfd_ioctl.h:250:2: error: unknown type name 'uint32_t'
uint32_t reset_type;
/usr/include/linux/kfd_ioctl.h:251:2: error: unknown type name 'uint32_t'
uint32_t reset_cause;
/usr/include/linux/kfd_ioctl.h:252:2: error: unknown type name 'uint32_t'
uint32_t memory_lost;
/usr/include/linux/kfd_ioctl.h:253:2: error: unknown type name 'uint32_t'
uint32_t gpu_id;
Fixes: 0c119abad7 ("drm/amd: Add kfd ioctl defines for hw_exception event")
Cc: <stable@vger.kernel.org> # v4.19
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit db03401824 upstream.
The CTA-861 standards have been updated to refer to opRGB instead
of AdobeRGB. The official standard is in fact named opRGB, so
switch to that.
The two old defines referring to ADOBERGB in the public API are
put under #ifndef __KERNEL__ and a comment mentions that they are
deprecated.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 7ec2b3b941 upstream.
If the HDMI cable is disconnected or the CEC adapter is manually
unconfigured, then all pending transmits and wait-for-replies are
aborted. Signal this with new status bits (CEC_RX/TX_STATUS_ABORTED).
If due to (usually) a driver bug a transmit never ends (i.e. the
transmit_done was never called by the driver), then when this times
out the message is marked with CEC_TX_STATUS_TIMEOUT.
This should not happen and is an indication of a driver bug.
Without a separate status bit for this it was impossible to detect
this from userspace.
The 'transmit timed out' kernel message is now a warning, so this
should be more prominent in the kernel log as well.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org> # for v4.18 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 578bdaabd0 upstream.
These are unused, undesired, and have never actually been used by
anybody. The original authors of this code have changed their mind about
its inclusion. While originally proposed for disk encryption on low-end
devices, the idea was discarded [1] in favor of something else before
that could really get going. Therefore, this patch removes Speck.
[1] https://marc.info/?l=linux-crypto-vger&m=153359499015659
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Eric Biggers <ebiggers@google.com>
Cc: stable@vger.kernel.org
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 9607871f37 ]
The following code in the linux/ndctl header file:
static inline const char *nvdimm_bus_cmd_name(unsigned cmd)
{
static const char * const names[] = {
[ND_CMD_ARS_CAP] = "ars_cap",
[ND_CMD_ARS_START] = "ars_start",
[ND_CMD_ARS_STATUS] = "ars_status",
[ND_CMD_CLEAR_ERROR] = "clear_error",
[ND_CMD_CALL] = "cmd_call",
};
if (cmd < ARRAY_SIZE(names) && names[cmd])
return names[cmd];
return "unknown";
}
is broken in a number of ways:
(1) ARRAY_SIZE() is not generally defined.
(2) g++ does not support "non-trivial" array initialisers fully yet.
(3) Every file that calls this function will acquire a copy of names[].
The same goes for nvdimm_cmd_name().
Fix all three by converting to a switch statement where each case returns a
string. That way if cmd is a constant, the compiler can trivially reduce it
and, if not, the compiler can use a shared lookup table if it thinks that is
more efficient.
A better way would be to remove these functions and their arrays from the
header entirely.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
According to rfc7496 section 4.3 or 4.4:
sprstat_policy: This parameter indicates for which PR-SCTP policy
the user wants the information. It is an error to use
SCTP_PR_SCTP_NONE in sprstat_policy. If SCTP_PR_SCTP_ALL is used,
the counters provided are aggregated over all supported policies.
We change to dump pr_assoc and pr_stream all status by SCTP_PR_SCTP_ALL
instead, and return error for SCTP_PR_SCTP_NONE, as it also said "It is
an error to use SCTP_PR_SCTP_NONE in sprstat_policy. "
Fixes: 826d253d57 ("sctp: add SCTP_PR_ASSOC_STATUS on sctp sockopt")
Fixes: d229d48d18 ("sctp: add SCTP_PR_STREAM_STATUS sockopt for prsctp")
Reported-by: Ying Xu <yinxu@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'rxrpc-fixes-20181008' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: Fix packet reception code
Here are a set of patches that prepares for and fix problems in rxrpc's
package reception code. There serious problems are:
(A) There's a window between binding the socket and setting the data_ready
hook in which packets can find their way into the UDP socket's receive
queues.
(B) The skb_recv_udp() will return an error (and clear the error state) if
there was an error on the Tx side. rxrpc doesn't handle this.
(C) The rxrpc data_ready handler doesn't fully drain the UDP receive
queue.
(D) The rxrpc data_ready handler assumes it is called in a non-reentrant
state.
The second patch fixes (A) - (C); the third patch renders (B) and (C)
non-issues by using the recap_rcv hook instead of data_ready - and the
final patch fixes (D). That last is the most complex.
The preparatory patches are:
(1) Fix some places that are doing things in the wrong net namespace.
(2) Stop taking the rcu read lock as it's held by the IP input routine in
the call chain.
(3) Only end the Tx phase if *we* rotated the final packet out of the Tx
buffer.
(4) Don't assume that the call state won't change after dropping the
call_state lock.
(5) Only take receive window and MTU suze parameters from an ACK packet if
it's the latest ACK packet.
(6) Record connection-level abort information correctly.
(7) Fix a trace line.
And then there are three main patches - note that these are mixed in with
the preparatory patches somewhat:
(1) Fix the setup window (A), skb_recv_udp() error check (B) and packet
drainage (C).
(2) Switch to using the encap_rcv instead of data_ready to cut out the
effects of the UDP read queues and get the packets delivered directly.
(3) Add more locking into the various packet input paths to defend against
re-entrance (D).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
* linux-linaro-lsk-v4.4-android: (1212 commits)
ANDROID: sdcardfs: Change current->fs under lock
ANDROID: sdcardfs: Don't use OVERRIDE_CRED macro
ANDROID: restrict store of prefer_idle as boolean
BACKPORT: arm/syscalls: Optimize address limit check
UPSTREAM: syscalls: Use CHECK_DATA_CORRUPTION for addr_limit_user_check
BACKPORT: arm64/syscalls: Check address limit on user-mode return
BACKPORT: x86/syscalls: Check address limit on user-mode return
BACKPORT: lkdtm: add bad USER_DS test
UPSTREAM: bug: switch data corruption check to __must_check
BACKPORT: lkdtm: Add tests for struct list corruption
UPSTREAM: bug: Provide toggle for BUG on data corruption
UPSTREAM: list: Split list_del() debug checking into separate function
UPSTREAM: rculist: Consolidate DEBUG_LIST for list_add_rcu()
BACKPORT: list: Split list_add() debug checking into separate function
FROMLIST: ANDROID: binder: Add BINDER_GET_NODE_INFO_FOR_REF ioctl.
BACKPORT: arm64/vdso: Fix nsec handling for CLOCK_MONOTONIC_RAW
ANDROID: arm64: mm: fix 4.4.154 merge
BACKPORT: zsmalloc: introduce zs_huge_class_size()
BACKPORT: zram: drop max_zpage_size and use zs_huge_class_size()
ANDROID: tracing: fix race condition reading saved tgids
...
Change-Id: I9f23db35eb926b6fa0d7af7dbbb55c9a37d536fc
Use the UDP encap_rcv hook to cut the bit out of the rxrpc packet reception
in which a packet is placed onto the UDP receive queue and then immediately
removed again by rxrpc. Going via the queue in this manner seems like it
should be unnecessary.
This does, however, require the invention of a value to place in encap_type
as that's one of the conditions to switch packets out to the encap_rcv
hook. Possibly the value doesn't actually matter for anything other than
sockopts on the UDP socket, which aren't accessible outside of rxrpc
anyway.
This seems to cut a bit of time out of the time elapsed between each
sk_buff being timestamped and turning up in rxrpc (the final number in the
following trace excerpts). I measured this by making the rxrpc_rx_packet
trace point print the time elapsed between the skb being timestamped and
the current time (in ns), e.g.:
... 424.278721: rxrpc_rx_packet: ... ACK 25026
So doing a 512MiB DIO read from my test server, with an unmodified kernel:
N min max sum mean stddev
27605 2626 7581 7.83992e+07 2840.04 181.029
and with the patch applied:
N min max sum mean stddev
27547 1895 12165 6.77461e+07 2459.29 255.02
Signed-off-by: David Howells <dhowells@redhat.com>
Commit c601171d7a ("net/smc: provide smc mode in smc_diag.c") changed
the name of diag_fallback field of struct smc_diag_msg structure
to diag_mode. However, this structure is a part of UAPI, and this change
breaks user space applications that use it ([1], for example). Since
the new name is more suitable, convert the field to a union that provides
access to the data via both the new and the old name.
[1] https://gitlab.com/strace/strace/blob/v4.24/netlink_smc_diag.c#L165
Fixes: c601171d7a ("net/smc: provide smc mode in smc_diag.c")
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
