8ec8dcf3dd
* refs/heads/tmp-5cfdde5:
Revert "ANDROID: gki_defconfig: enabled UAPI header compile testing"
Linux 5.4.30
arm64: dts: ls1046ardb: set RGMII interfaces to RGMII_ID mode
arm64: dts: ls1043a-rdb: correct RGMII delay mode to rgmii-id
ARM: dts: sun8i: r40: Move AHCI device node based on address order
ARM: dts: N900: fix onenand timings
ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage
ARM: bcm2835-rpi-zero-w: Add missing pinctrl name
ARM: dts: oxnas: Fix clear-mask property
perf map: Fix off by one in strncpy() size argument
arm64: alternative: fix build with clang integrated assembler
libceph: fix alloc_msg_with_page_vector() memory leaks
clk: ti: am43xx: Fix clock parent for RTC clock
clk: imx: Align imx sc clock parent msg structs to 4
clk: imx: Align imx sc clock msg structs to 4
net: ks8851-ml: Fix IO operations, again
gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 CHT + AXP288 model
bpf: Explicitly memset some bpf info structures declared on the stack
bpf: Explicitly memset the bpf_attr structure
platform/x86: pmc_atom: Add Lex 2I385SW to critclk_systems DMI table
vt: vt_ioctl: fix use-after-free in vt_in_use()
vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console
vt: vt_ioctl: remove unnecessary console allocation checks
vt: switch vt_dont_switch to bool
vt: ioctl, switch VT_IS_IN_USE and VT_BUSY to inlines
vt: selection, introduce vc_is_sel
serial: sprd: Fix a dereference warning
mac80211: fix authentication with iwlwifi/mvm
mac80211: Check port authorization in the ieee80211_tx_dequeue() case
ANDROID: 5.4.29 ABI update
ANDROID: GKI: remove kernel_read/write from whitelists
ANDROID: GKI: Fix ABI for scsi/ufs patches
FROMGIT: scsi: ufs-qcom: Override devfreq parameters
BACKPORT: FROMGIT: scsi: ufshcd: Let vendor override devfreq parameters
FROMGIT: scsi: ufshcd: Update the set frequency to devfreq
FROMLIST: scsi: ufs: full reinit upon resume if link was off
FROMGIT: scsi: ufs: set device as active power mode after resetting device
FROMGIT: scsi: ufs: Enable block layer runtime PM for well-known logical units
UPSTREAM: scsi: ufs: Fix possible unclocked access to auto hibern8 timer register
ANDROID: db845c build: Use merge_configs
ANDROID: ABI/Whitelist: update whitelist of unisoc
Linux 5.4.29
net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build
media: v4l2-core: fix a use-after-free bug of sd->devnode
media: xirlink_cit: add missing descriptor sanity checks
media: stv06xx: add missing descriptor sanity checks
media: dib0700: fix rc endpoint lookup
media: ov519: add missing endpoint sanity checks
libfs: fix infoleak in simple_attr_read()
ahci: Add Intel Comet Lake H RAID PCI ID
staging: wlan-ng: fix use-after-free Read in hfa384x_usbin_callback
staging: wlan-ng: fix ODEBUG bug in prism2sta_disconnect_usb
staging: rtl8188eu: Add ASUS USB-N10 Nano B1 to device table
staging: kpc2000: prevent underflow in cpld_reconfigure()
media: usbtv: fix control-message timeouts
media: flexcop-usb: fix endpoint sanity check
usb: musb: fix crash with highmen PIO and usbmon
USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback
USB: cdc-acm: restore capability check order
USB: serial: option: add Wistron Neweb D19Q1
USB: serial: option: add BroadMobi BM806U
USB: serial: option: add support for ASKEY WWHC050
bpf: Undo incorrect __reg_bound_offset32 handling
clocksource/drivers/hyper-v: Untangle stimers and timesync from clocksources
r8169: fix PHY driver check on platforms w/o module softdeps
vti6: Fix memory leak of skb if input policy check fails
ARM: dts: sun8i-a83t-tbs-a711: Fix USB OTG mode detection
bpf, sockmap: Remove bucket->lock from sock_{hash|map}_free
bpf/btf: Fix BTF verification of enum members in struct/union
bpf: Initialize storage pointers to NULL to prevent freeing garbage pointer
bpf, x32: Fix bug with JMP32 JSET BPF_X checking upper bits
i2c: nvidia-gpu: Handle timeout correctly in gpu_i2c_check_status()
netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress
netfilter: nft_fwd_netdev: validate family and chain type
netfilter: flowtable: reload ip{v6}h in nf_flow_tuple_ip{v6}
mac80211: set IEEE80211_TX_CTRL_PORT_CTRL_PROTO for nl80211 TX
ieee80211: fix HE SPR size calculation
afs: Fix unpinned address list during probing
afs: Fix some tracing details
afs: Fix client call Rx-phase signal handling
xfrm: policy: Fix doulbe free in xfrm_policy_timer
xfrm: add the missing verify_sec_ctx_len check in xfrm_add_acquire
xfrm: fix uctx len check in verify_sec_ctx_len
RDMA/mlx5: Block delay drop to unprivileged users
RDMA/mlx5: Fix access to wrong pointer while performing flush due to error
RDMA/mlx5: Fix the number of hwcounters of a dynamic counter
vti[6]: fix packet tx through bpf_redirect() in XinY cases
xfrm: handle NETDEV_UNREGISTER for xfrm device
genirq: Fix reference leaks on irq affinity notifiers
afs: Fix handling of an abort from a service handler
RDMA/core: Ensure security pkey modify is not lost
bpf: Fix cgroup ref leak in cgroup_bpf_inherit on out-of-memory
gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 BYT + AXP288 model
gpiolib: acpi: Rework honor_wakeup option into an ignore_wake option
gpiolib: acpi: Correct comment for HP x2 10 honor_wakeup quirk
mm: fork: fix kernel_stack memcg stats for various stack implementations
mm/sparse: fix kernel crash with pfn_section_valid check
drivers/base/memory.c: indicate all memory blocks as removable
mm/swapfile.c: move inode_lock out of claim_swapfile
mac80211: mark station unauthorized before key removal
mac80211: drop data frames without key on encrypted links
nl80211: fix NL80211_ATTR_CHANNEL_WIDTH attribute type
scsi: sd: Fix optimal I/O size for devices that change reported values
scripts/dtc: Remove redundant YYLOC global declaration
tools: Let O= makes handle a relative path with -C option
rtlwifi: rtl8188ee: Fix regression due to commit d1d1a96bdb
perf probe: Do not depend on dwfl_module_addrsym()
perf probe: Fix to delete multiple probe event
x86/ioremap: Fix CONFIG_EFI=n build
ARM: dts: omap5: Add bus_dma_limit for L3 bus
ARM: dts: dra7: Add bus_dma_limit for L3 bus
ceph: fix memory leak in ceph_cleanup_snapid_map()
ceph: check POOL_FLAG_FULL/NEARFULL in addition to OSDMAP_FULL/NEARFULL
RDMA/mad: Do not crash if the rdma device does not have a umad interface
RDMA/nl: Do not permit empty devices names during RDMA_NLDEV_CMD_NEWLINK/SET
gpiolib: Fix irq_disable() semantics
RDMA/core: Fix missing error check on dev_set_name()
IB/rdmavt: Free kernel completion queue when done
Input: avoid BIT() macro usage in the serio.h UAPI header
Input: synaptics - enable RMI on HP Envy 13-ad105ng
Input: fix stale timestamp on key autorepeat events
Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()
i2c: hix5hd2: add missed clk_disable_unprepare in remove
iwlwifi: mvm: fix non-ACPI function
iommu/vt-d: Populate debugfs if IOMMUs are detected
iommu/vt-d: Fix debugfs register reads
net: hns3: fix "tc qdisc del" failed issue
sxgbe: Fix off by one in samsung driver strncpy size arg
dpaa_eth: Remove unnecessary boolean expression in dpaa_get_headroom
mac80211: Do not send mesh HWMP PREQ if HWMP is disabled
scsi: ipr: Fix softlockup when rescanning devices in petitboot
s390/qeth: handle error when backing RX buffer
s390/qeth: don't reset default_out_queue
iommu/vt-d: Silence RCU-list debugging warnings
drm/exynos: Fix cleanup of IOMMU related objects
drm/amdgpu: correct ROM_INDEX/DATA offset for VEGA20
drm/amd/display: update soc bb for nv14
fsl/fman: detect FMan erratum A050385
arm64: dts: ls1043a: FMan erratum A050385
dt-bindings: net: FMan erratum A050385
cgroup1: don't call release_agent when it is ""
drivers/of/of_mdio.c:fix of_mdiobus_register()
cpupower: avoid multiple definition with gcc -fno-common
nfs: add minor version to nfs_server_key for fscache
cgroup-v1: cgroup_pidlist_next should update position index
net/mlx5e: Do not recover from a non-fatal syndrome
net/mlx5e: Fix ICOSQ recovery flow with Striding RQ
net/mlx5e: Fix missing reset of SW metadata in Striding RQ reset
net/mlx5e: Enhance ICOSQ WQE info fields
net/mlx5: DR, Fix postsend actions write length
hsr: set .netnsok flag
hsr: add restart routine into hsr_get_node_list()
hsr: use rcu_read_lock() in hsr_get_node_{list/status}()
net: ip_gre: Accept IFLA_INFO_DATA-less configuration
net: ip_gre: Separate ERSPAN newlink / changelink callbacks
bnxt_en: Reset rings if ring reservation fails during open()
bnxt_en: Free context memory after disabling PCI in probe error path.
bnxt_en: Return error if bnxt_alloc_ctx_mem() fails.
bnxt_en: fix memory leaks in bnxt_dcbnl_ieee_getets()
bnxt_en: Fix Priority Bytes and Packets counters in ethtool -S.
vxlan: check return value of gro_cells_init()
tcp: repair: fix TCP_QUEUE_SEQ implementation
tcp: ensure skb->dev is NULL before leaving TCP stack
tcp: also NULL skb->dev when copy was needed
slcan: not call free_netdev before rtnl_unlock in slcan_open
r8169: re-enable MSI on RTL8168c
NFC: fdp: Fix a signedness bug in fdp_nci_send_patch()
net: stmmac: dwmac-rk: fix error path in rk_gmac_probe
net_sched: keep alloc_hash updated after hash allocation
net_sched: hold rtnl lock in tcindex_partial_destroy_work()
net_sched: cls_route: remove the right filter from hashtable
net/sched: act_ct: Fix leak of ct zone template on replace
net: qmi_wwan: add support for ASKEY WWHC050
net: phy: mdio-mux-bcm-iproc: check clk_prepare_enable() return value
net: phy: mdio-bcm-unimac: Fix clock handling
net: phy: dp83867: w/a for fld detect threshold bootstrapping issue
net/packet: tpacket_rcv: avoid a producer race condition
net: mvneta: Fix the case where the last poll did not process all rx
net: ena: Add PCI shutdown handler to allow safe kexec
net: dsa: tag_8021q: replace dsa_8021q_remove_header with __skb_vlan_pop
net: dsa: mt7530: Change the LINK bit to reflect the link status
net: dsa: Fix duplicate frames flooded by learning
net: cbs: Fix software cbs to consider packet sending time
net/bpfilter: fix dprintf usage for /dev/kmsg
mlxsw: spectrum_mr: Fix list iteration in error path
mlxsw: pci: Only issue reset when system is ready
macsec: restrict to ethernet devices
ipv4: fix a RCU-list lock in inet_dump_fib()
hsr: fix general protection fault in hsr_addr_is_self()
geneve: move debug check after netdev unregister
cxgb4: fix Txq restart check during backpressure
cxgb4: fix throughput drop during Tx backpressure
ACPI: PM: s2idle: Rework ACPI events synchronization
mmc: sdhci-tegra: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY
mmc: sdhci-omap: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY
mmc: core: Respect MMC_CAP_NEED_RSP_BUSY for eMMC sleep command
mmc: core: Respect MMC_CAP_NEED_RSP_BUSY for erase/trim/discard
mmc: core: Allow host controllers to require R1B for CMD6
ANDROID: GKI: defconfig: enable CONFIG_THERMAL_GOV_POWER_ALLOCATOR
UPSTREAM: usb: raw_gadget: fix compilation warnings in uapi headers
BACKPORT: usb: gadget: add raw-gadget interface
UPSTREAM: usb: gadget: move choice ... endchoice to legacy/Kconfig
ANDROID: GKI: Added goldfish whitelist to aarch64 abi
ANDROID: GKI: update cf whitelist + gki whitelist
UPSTREAM: ipv6: ndisc: add support for 'PREF64' dns64 prefix identifier
ANDROID: ABI: Add initial ABI whitelist for QCOM
ANDROID: GKI: Removed cuttlefish configs
ANDROID: ABI/Whitelist: update for db845c
ANDROID: clang: update to 10.0.5
FROMLIST: arm64: define __alloc_zeroed_user_highpage
BACKPORT: extcon: Mark extcon_get_edev_name() function as exported symbol
ANDROID: Incremental fs: Fix two typos
ANDROID: gki_defconfig: Enable CONFIG_REMOTEPROC
ANDROID: GKI: Add CONFIG_RPMSG to gki_defconfig
Revert "sched/core: Prevent race condition between cpuset and __sched_setscheduler()"
Revert "ANDROID: binder: fix sleeping from invalid function caused by RT inheritance"
ANDROID: Incremental fs: Add INCFS_IOC_GET_FILLED_BLOCKS
ANDROID: GKI: defconfig: Enable CONFIG_SHUFFLE_PAGE_ALLOCATOR
ANDROID: gki_defconfig: disable CONFIG_HARDENED_USERCOPY_FALLBACK
ANDROID: gki_defconfig: enable CONFIG_DEBUG_LIST
ANDROID: Follow aosp/1233812 to update ABI whitelists post-TPM addition.
ANDROID: dm-bow: Fix free_show value is incorrect
ANDROID: GKI: workqueue.h: add Android ABI padding to some structures
ANDROID: gki_defconfig: enabled UAPI header compile testing
ANDROID: GKI: fs.h: add Android ABI padding to some structures
FROMLIST: media: v4l2-fh: define v4l2_fh struct regardless of condition
ANDROID: update ABI for 5.4.28
ANDROID: kbuild: do not merge .section..* into .section in modules
Linux 5.4.28
staging: greybus: loopback_test: fix potential path truncations
staging: greybus: loopback_test: fix potential path truncation
drm/bridge: dw-hdmi: fix AVI frame colorimetry
nvmet-tcp: set MSG_MORE only if we actually have more to send
arm64: smp: fix crash_smp_send_stop() behaviour
arm64: smp: fix smp_send_stop() behaviour
ALSA: hda/realtek: Fix pop noise on ALC225
futex: Unbreak futex hashing
futex: Fix inode life-time issue
x86/mm: split vmalloc_sync_all()
page-flags: fix a crash at SetPageError(THP_SWAP)
mm, slub: prevent kmalloc_node crashes and memory leaks
mm: slub: be more careful about the double cmpxchg of freelist
epoll: fix possible lost wakeup on epoll_ctl() path
mm: do not allow MADV_PAGEOUT for CoW pages
mm/hotplug: fix hot remove failure in SPARSEMEM|!VMEMMAP case
mm, memcg: throttle allocators based on ancestral memory.high
mm, memcg: fix corruption on 64-bit divisor in memory.high throttling
memcg: fix NULL pointer dereference in __mem_cgroup_usage_unregister_event
stm class: sys-t: Fix the use of time_after()
drm/lease: fix WARNING in idr_destroy
drm/amd/amdgpu: Fix GPR read from debugfs (v2)
btrfs: fix log context list corruption after rename whiteout error
xhci: Do not open code __print_symbolic() in xhci trace events
arm64: compat: Fix syscall number of compat_clock_getres
rtc: max8907: add missing select REGMAP_IRQ
modpost: move the namespace field in Module.symvers last
intel_th: pci: Add Elkhart Lake CPU support
intel_th: Fix user-visible error codes
intel_th: msu: Fix the unexpected state warning
staging/speakup: fix get_word non-space look-ahead
staging: greybus: loopback_test: fix poll-mask build breakage
staging: rtl8188eu: Add device id for MERCUSYS MW150US v2
kbuild: Disable -Wpointer-to-enum-cast
CIFS: fiemap: do not return EINVAL if get nothing
mmc: sdhci-cadence: set SDHCI_QUIRK2_PRESET_VALUE_BROKEN for UniPhier
mmc: sdhci-of-at91: fix cd-gpios for SAMA5D2
mmc: rtsx_pci: Fix support for speed-modes that relies on tuning
iio: light: vcnl4000: update sampling periods for vcnl4040
iio: light: vcnl4000: update sampling periods for vcnl4200
iio: adc: at91-sama5d2_adc: fix differential channels in triggered mode
iio: adc: stm32-dfsdm: fix sleep in atomic context
iio: magnetometer: ak8974: Fix negative raw values in sysfs
iio: accel: adxl372: Set iio_chan BE
iio: trigger: stm32-timer: disable master mode when stopping
iio: st_sensors: remap SMO8840 to LIS2DH12
iio: chemical: sps30: fix missing triggered buffer dependency
tty: fix compat TIOCGSERIAL checking wrong function ptr
tty: fix compat TIOCGSERIAL leaking uninitialized memory
ALSA: pcm: oss: Remove WARNING from snd_pcm_plug_alloc() checks
ALSA: pcm: oss: Avoid plugin buffer overflow
ALSA: seq: oss: Fix running status after receiving sysex
ALSA: seq: virmidi: Fix running status after receiving sysex
ALSA: hda/realtek - Enable the headset of Acer N50-600 with ALC662
ALSA: hda/realtek - Enable headset mic of Acer X2660G with ALC662
ALSA: line6: Fix endless MIDI read loop
USB: cdc-acm: fix rounding error in TIOCSSERIAL
USB: cdc-acm: fix close_delay and closing_wait units in TIOCSSERIAL
usb: typec: ucsi: displayport: Fix a potential race during registration
usb: typec: ucsi: displayport: Fix NULL pointer dereference
usb: xhci: apply XHCI_SUSPEND_DELAY to AMD XHCI controller 1022:145c
USB: serial: pl2303: add device-id for HP LD381
usb: host: xhci-plat: add a shutdown
USB: serial: option: add ME910G1 ECM composition 0x110b
usb: quirks: add NO_LPM quirk for RTL8153 based ethernet adapters
USB: Disable LPM on WD19's Realtek Hub
Revert "drm/fbdev: Fallback to non tiled mode if all tiles not present"
binderfs: use refcount for binder control devices too
parse-maintainers: Mark as executable
block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group()
xenbus: req->err should be updated before req->state
xenbus: req->body should be updated before req->state
drm/amd/display: fix dcc swath size calculations on dcn1
drm/amd/display: Clear link settings on MST disable connector
drm/amdgpu: clean wptr on wb when gpu recovery
riscv: Fix range looking for kernel image memblock
riscv: Force flat memory model with no-mmu
spi: spi_register_controller(): free bus id on error paths
ASoC: stm32: sai: manage rebind issue
riscv: avoid the PIC offset of static percpu data in module beyond 2G limits
dm integrity: use dm_bio_record and dm_bio_restore
dm bio record: save/restore bi_end_io and bi_integrity
altera-stapl: altera_get_note: prevent write beyond end of 'key'
drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer
drivers/perf: fsl_imx8_ddr: Correct the CLEAR bit definition
drm/exynos: hdmi: don't leak enable HDMI_EN regulator if probe fails
drm/exynos: dsi: fix workaround for the legacy clock name
drm/exynos: dsi: propagate error value and silence meaningless warning
spi/zynqmp: remove entry that causes a cs glitch
spi: pxa2xx: Add CS control clock quirk
ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes
cifs: add missing mount option to /proc/mounts
cifs: fix potential mismatch of UNC paths
powerpc: Include .BTF section
spi: qup: call spi_qup_pm_resume_runtime before suspending
ARM: dts: dra7-l4: mark timer13-16 as pwm capable
phy: ti: gmii-sel: do not fail in case of gmii
phy: ti: gmii-sel: fix set of copy-paste errors
drm/mediatek: Find the cursor plane instead of hard coding it
spi: spi-omap2-mcspi: Support probe deferral for DMA channels
locks: reinstate locks_delete_block optimization
locks: fix a potential use-after-free problem when wakeup a waiter
ANDROID: ABI/Whitelist: update whitelist of unisoc
ANDROID: staging: ion: Allow for attach and detach ops to be overridden
ANDROID: scsi: ufs: add ->map_sg_crypto() variant op
ANDROID: ABI/Whitelist: update for db845c
ANDROID: GKI: Add CONFIG_SOC_BUS to gki_defconfig
ANDROID: ABI/Whitelist: update for hikey960
ANDROID: hikey960: Add external mali driver support to build.config.hikey960
ANDROID: hikey960: Add build.config.hikey960
ANDROID: config: Add hikey960_gki fragment
ANDROID: misc: hisi_hikey_usb: Driver to support usb functionality of Hikey960
ANDROID: dt-bindings: misc: Add bindings for HiSilicon usb hub and data role switch functionality on HiKey960
FROMGIT: usb: dwc3: Rework resets initialization to be more flexible
FROMGIT: usb: dwc3: Rework clock initialization to be more flexible
FROMGIT: dt-bindings: usb: dwc3: Allow clock list & resets to be more flexible
FROMGIT: usb: dwc3: Add support for role-switch-default-mode binding
FROMGIT: dt-bindings: usb: generic: Add role-switch-default-mode binding
FROMGIT: usb: dwc3: Registering a role switch in the DRD code.
UPSTREAM: bpf: Explicitly memset some bpf info structures declared on the stack
UPSTREAM: bpf: Explicitly memset the bpf_attr structure
FROMGIT: BACKPORT: driver core: Add device links from fwnode only for the primary device
Linux 5.4.27
ipv4: ensure rcu_read_lock() in cipso_v4_error()
ARM: 8961/2: Fix Kbuild issue caused by per-task stack protector GCC plugin
HID: add ALWAYS_POLL quirk to lenovo pixart mouse
HID: google: add moonball USB id
mm: slub: add missing TID bump in kmem_cache_alloc_bulk()
ARM: 8958/1: rename missed uaccess .fixup section
ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional()
net: qrtr: fix len of skb_put_padto in qrtr_node_enqueue
blk-mq: insert flush request to the front of dispatch queue
jbd2: fix data races at struct journal_head
sfc: fix timestamp reconstruction at 16-bit rollover points
net: rmnet: fix packet forwarding in rmnet bridge mode
net: rmnet: fix bridge mode bugs
net: rmnet: use upper/lower device infrastructure
net: rmnet: do not allow to change mux id if mux id is duplicated
net: rmnet: remove rcu_read_lock in rmnet_force_unassociate_device()
net: rmnet: fix suspicious RCU usage
net: rmnet: fix NULL pointer dereference in rmnet_changelink()
net: rmnet: fix NULL pointer dereference in rmnet_newlink()
hinic: fix a bug of rss configuration
hinic: fix a bug of setting hw_ioctxt
hinic: fix a irq affinity bug
net: phy: mscc: fix firmware paths
slip: not call free_netdev before rtnl_unlock in slip_open
signal: avoid double atomic counter increments for user accounting
kbuild: add dt_binding_check to PHONY in a correct place
kbuild: add dtbs_check to PHONY
drm/amdgpu: fix memory leak during TDR test(v2)
blk-mq: insert passthrough request into hctx->dispatch directly
net: ll_temac: Handle DMA halt condition caused by buffer underrun
net: ll_temac: Fix RX buffer descriptor handling on GFP_ATOMIC pressure
net: ll_temac: Add more error handling of dma_map_single() calls
net: ll_temac: Fix race condition causing TX hang
mac80211: rx: avoid RCU list traversal under mutex
net: ks8851-ml: Fix IRQ handling and locking
net: usb: qmi_wwan: restore mtu min/max values after raw_ip switch
scsi: libfc: free response frame from GPN_ID
cfg80211: check reg_rule for NULL in handle_channel_custom()
tracing: Fix number printing bug in print_synth_event()
selftests/rseq: Fix out-of-tree compilation
HID: hid-bigbenff: fix race condition for scheduled work during removal
HID: hid-bigbenff: call hid_hw_stop() in case of error
HID: hid-bigbenff: fix general protection fault caused by double kfree
HID: i2c-hid: add Trekstor Surfbook E11B to descriptor override
ACPI: watchdog: Set default timeout in probe
HID: apple: Add support for recent firmware on Magic Keyboards
ACPI: watchdog: Allow disabling WDAT at boot
drm/amdgpu: Fix TLB invalidation request when using semaphore
netfilter: xt_hashlimit: unregister proc file before releasing mutex
netfilter: hashlimit: do not use indirect calls during gc
ANDROID: staging: ion: Export query function to be used in modules
UPSTREAM: Bluetooth: hci_qca: Add support for Qualcomm Bluetooth SoC WCN3991
UPSTREAM: Bluetooth: btqca: Rename ROME specific variables to generic variables
ANDROID: ABI: Update abi after enabling CONFIG_USB_PHY
ANDROID: GKI: Enable CONFIG_USB_PHY for usb drivers like dwc3
ANDROID: Update abi_gki_aarch64_unisoc_whitelist
ANDROID: GKI: USB: add Android ABI padding to some structures
FROMLIST: ubifs: wire up FS_IOC_GET_ENCRYPTION_NONCE
FROMLIST: f2fs: wire up FS_IOC_GET_ENCRYPTION_NONCE
FROMLIST: ext4: wire up FS_IOC_GET_ENCRYPTION_NONCE
FROMLIST: fscrypt: add FS_IOC_GET_ENCRYPTION_NONCE ioctl
ANDROID: GKI: mm: add Android ABI padding to some structures
ANDROID: GKI: mount.h: add Android ABI padding to some structures
ANDROID: GKI: sched.h: add Android ABI padding to some structures
ANDROID: GKI: sock.h: add Android ABI padding to some structures
ANDROID: GKI: module.h: add Android ABI padding to some structures
UPSTREAM: driver core: Skip unnecessary work when device doesn't have sync_state()
ANDROID: Incremental fs: Add INCFS_IOC_PERMIT_FILL
ANDROID: Incremental fs: Remove signature checks from kernel
ANDROID: Incremental fs: Pad hash blocks
ANDROID: Incremental fs: Make fill block an ioctl
ANDROID: Incremental fs: Remove all access_ok checks
ANDROID: GKI: device.h: add Android ABI padding to some structures
ANDROID: GKI: phy: add Android ABI padding to some structures
ANDROID: ABI update for 5.4.26
Conflicts:
Documentation/devicetree/bindings
Documentation/devicetree/bindings/net/fsl-fman.txt
Documentation/devicetree/bindings/usb/dwc3.txt
Documentation/devicetree/bindings/usb/generic.txt
abi_gki_aarch64_qcom_whitelist
drivers/misc/Kconfig
drivers/misc/Makefile
drivers/scsi/ufs/ufs-qcom.c
drivers/usb/dwc3/core.c
drivers/usb/gadget/Kconfig
include/linux/device.h
net/qrtr/qrtr.c
Change-Id: I43806ae33997efaf3265461e15fdbe49de74d741
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
795 lines
19 KiB
C
795 lines
19 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/compiler_types.h>
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#include <linux/errno.h>
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#include <linux/fs.h>
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#include <linux/fsnotify.h>
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#include <linux/gfp.h>
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#include <linux/idr.h>
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#include <linux/init.h>
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#include <linux/ipc_namespace.h>
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#include <linux/kdev_t.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/namei.h>
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#include <linux/magic.h>
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#include <linux/major.h>
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#include <linux/miscdevice.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/mount.h>
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#include <linux/parser.h>
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#include <linux/radix-tree.h>
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#include <linux/sched.h>
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#include <linux/seq_file.h>
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#include <linux/slab.h>
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#include <linux/spinlock_types.h>
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#include <linux/stddef.h>
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#include <linux/string.h>
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#include <linux/types.h>
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#include <linux/uaccess.h>
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#include <linux/user_namespace.h>
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#include <linux/xarray.h>
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#include <uapi/asm-generic/errno-base.h>
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#include <uapi/linux/android/binder.h>
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#include <uapi/linux/android/binderfs.h>
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#include "binder_internal.h"
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#define FIRST_INODE 1
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#define SECOND_INODE 2
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#define INODE_OFFSET 3
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#define INTSTRLEN 21
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#define BINDERFS_MAX_MINOR (1U << MINORBITS)
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/* Ensure that the initial ipc namespace always has devices available. */
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#define BINDERFS_MAX_MINOR_CAPPED (BINDERFS_MAX_MINOR - 4)
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static dev_t binderfs_dev;
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static DEFINE_MUTEX(binderfs_minors_mutex);
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static DEFINE_IDA(binderfs_minors);
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enum {
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Opt_max,
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Opt_stats_mode,
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Opt_err
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};
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enum binderfs_stats_mode {
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STATS_NONE,
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STATS_GLOBAL,
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};
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static const match_table_t tokens = {
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{ Opt_max, "max=%d" },
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{ Opt_stats_mode, "stats=%s" },
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{ Opt_err, NULL }
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};
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static inline struct binderfs_info *BINDERFS_I(const struct inode *inode)
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{
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return inode->i_sb->s_fs_info;
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}
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bool is_binderfs_device(const struct inode *inode)
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{
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if (inode->i_sb->s_magic == BINDERFS_SUPER_MAGIC)
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return true;
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return false;
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}
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/**
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* binderfs_binder_device_create - allocate inode from super block of a
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* binderfs mount
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* @ref_inode: inode from wich the super block will be taken
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* @userp: buffer to copy information about new device for userspace to
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* @req: struct binderfs_device as copied from userspace
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*
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* This function allocates a new binder_device and reserves a new minor
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* number for it.
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* Minor numbers are limited and tracked globally in binderfs_minors. The
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* function will stash a struct binder_device for the specific binder
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* device in i_private of the inode.
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* It will go on to allocate a new inode from the super block of the
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* filesystem mount, stash a struct binder_device in its i_private field
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* and attach a dentry to that inode.
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*
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* Return: 0 on success, negative errno on failure
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*/
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static int binderfs_binder_device_create(struct inode *ref_inode,
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struct binderfs_device __user *userp,
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struct binderfs_device *req)
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{
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int minor, ret;
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struct dentry *dentry, *root;
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struct binder_device *device;
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char *name = NULL;
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size_t name_len;
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struct inode *inode = NULL;
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struct super_block *sb = ref_inode->i_sb;
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struct binderfs_info *info = sb->s_fs_info;
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#if defined(CONFIG_IPC_NS)
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bool use_reserve = (info->ipc_ns == &init_ipc_ns);
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#else
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bool use_reserve = true;
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#endif
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/* Reserve new minor number for the new device. */
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mutex_lock(&binderfs_minors_mutex);
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if (++info->device_count <= info->mount_opts.max)
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minor = ida_alloc_max(&binderfs_minors,
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use_reserve ? BINDERFS_MAX_MINOR :
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BINDERFS_MAX_MINOR_CAPPED,
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GFP_KERNEL);
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else
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minor = -ENOSPC;
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if (minor < 0) {
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--info->device_count;
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mutex_unlock(&binderfs_minors_mutex);
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return minor;
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}
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mutex_unlock(&binderfs_minors_mutex);
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ret = -ENOMEM;
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device = kzalloc(sizeof(*device), GFP_KERNEL);
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if (!device)
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goto err;
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inode = new_inode(sb);
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if (!inode)
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goto err;
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inode->i_ino = minor + INODE_OFFSET;
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inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
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init_special_inode(inode, S_IFCHR | 0600,
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MKDEV(MAJOR(binderfs_dev), minor));
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inode->i_fop = &binder_fops;
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inode->i_uid = info->root_uid;
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inode->i_gid = info->root_gid;
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req->name[BINDERFS_MAX_NAME] = '\0'; /* NUL-terminate */
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name_len = strlen(req->name);
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/* Make sure to include terminating NUL byte */
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name = kmemdup(req->name, name_len + 1, GFP_KERNEL);
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if (!name)
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goto err;
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refcount_set(&device->ref, 1);
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device->binderfs_inode = inode;
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device->context.binder_context_mgr_uid = INVALID_UID;
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device->context.name = name;
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device->miscdev.name = name;
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device->miscdev.minor = minor;
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mutex_init(&device->context.context_mgr_node_lock);
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req->major = MAJOR(binderfs_dev);
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req->minor = minor;
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if (userp && copy_to_user(userp, req, sizeof(*req))) {
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ret = -EFAULT;
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goto err;
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}
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root = sb->s_root;
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inode_lock(d_inode(root));
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/* look it up */
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dentry = lookup_one_len(name, root, name_len);
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if (IS_ERR(dentry)) {
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inode_unlock(d_inode(root));
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ret = PTR_ERR(dentry);
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goto err;
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}
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if (d_really_is_positive(dentry)) {
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/* already exists */
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dput(dentry);
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inode_unlock(d_inode(root));
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ret = -EEXIST;
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goto err;
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}
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inode->i_private = device;
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d_instantiate(dentry, inode);
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fsnotify_create(root->d_inode, dentry);
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inode_unlock(d_inode(root));
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return 0;
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err:
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kfree(name);
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kfree(device);
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mutex_lock(&binderfs_minors_mutex);
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--info->device_count;
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ida_free(&binderfs_minors, minor);
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mutex_unlock(&binderfs_minors_mutex);
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iput(inode);
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return ret;
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}
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/**
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* binderfs_ctl_ioctl - handle binder device node allocation requests
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*
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* The request handler for the binder-control device. All requests operate on
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* the binderfs mount the binder-control device resides in:
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* - BINDER_CTL_ADD
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* Allocate a new binder device.
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*
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* Return: 0 on success, negative errno on failure
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*/
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static long binder_ctl_ioctl(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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int ret = -EINVAL;
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struct inode *inode = file_inode(file);
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struct binderfs_device __user *device = (struct binderfs_device __user *)arg;
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struct binderfs_device device_req;
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switch (cmd) {
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case BINDER_CTL_ADD:
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ret = copy_from_user(&device_req, device, sizeof(device_req));
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if (ret) {
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ret = -EFAULT;
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break;
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}
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ret = binderfs_binder_device_create(inode, device, &device_req);
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break;
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default:
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break;
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}
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return ret;
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}
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static void binderfs_evict_inode(struct inode *inode)
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{
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struct binder_device *device = inode->i_private;
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struct binderfs_info *info = BINDERFS_I(inode);
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clear_inode(inode);
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if (!S_ISCHR(inode->i_mode) || !device)
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return;
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mutex_lock(&binderfs_minors_mutex);
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--info->device_count;
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ida_free(&binderfs_minors, device->miscdev.minor);
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mutex_unlock(&binderfs_minors_mutex);
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if (refcount_dec_and_test(&device->ref)) {
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kfree(device->context.name);
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kfree(device);
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}
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}
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/**
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* binderfs_parse_mount_opts - parse binderfs mount options
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* @data: options to set (can be NULL in which case defaults are used)
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*/
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static int binderfs_parse_mount_opts(char *data,
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struct binderfs_mount_opts *opts)
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{
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char *p, *stats;
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opts->max = BINDERFS_MAX_MINOR;
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opts->stats_mode = STATS_NONE;
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while ((p = strsep(&data, ",")) != NULL) {
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substring_t args[MAX_OPT_ARGS];
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int token;
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int max_devices;
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if (!*p)
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continue;
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token = match_token(p, tokens, args);
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switch (token) {
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case Opt_max:
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if (match_int(&args[0], &max_devices) ||
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(max_devices < 0 ||
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(max_devices > BINDERFS_MAX_MINOR)))
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return -EINVAL;
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opts->max = max_devices;
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break;
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case Opt_stats_mode:
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if (!capable(CAP_SYS_ADMIN))
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return -EINVAL;
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stats = match_strdup(&args[0]);
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if (!stats)
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return -ENOMEM;
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if (strcmp(stats, "global") != 0) {
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kfree(stats);
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return -EINVAL;
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}
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opts->stats_mode = STATS_GLOBAL;
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kfree(stats);
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break;
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default:
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pr_err("Invalid mount options\n");
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return -EINVAL;
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}
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}
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return 0;
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}
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static int binderfs_remount(struct super_block *sb, int *flags, char *data)
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{
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int prev_stats_mode, ret;
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struct binderfs_info *info = sb->s_fs_info;
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prev_stats_mode = info->mount_opts.stats_mode;
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ret = binderfs_parse_mount_opts(data, &info->mount_opts);
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if (ret)
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return ret;
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if (prev_stats_mode != info->mount_opts.stats_mode) {
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pr_err("Binderfs stats mode cannot be changed during a remount\n");
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info->mount_opts.stats_mode = prev_stats_mode;
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return -EINVAL;
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}
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return 0;
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}
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static int binderfs_show_mount_opts(struct seq_file *seq, struct dentry *root)
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{
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struct binderfs_info *info;
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info = root->d_sb->s_fs_info;
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if (info->mount_opts.max <= BINDERFS_MAX_MINOR)
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seq_printf(seq, ",max=%d", info->mount_opts.max);
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if (info->mount_opts.stats_mode == STATS_GLOBAL)
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seq_printf(seq, ",stats=global");
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return 0;
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}
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static const struct super_operations binderfs_super_ops = {
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.evict_inode = binderfs_evict_inode,
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.remount_fs = binderfs_remount,
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.show_options = binderfs_show_mount_opts,
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.statfs = simple_statfs,
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};
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static inline bool is_binderfs_control_device(const struct dentry *dentry)
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{
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struct binderfs_info *info = dentry->d_sb->s_fs_info;
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return info->control_dentry == dentry;
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}
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static int binderfs_rename(struct inode *old_dir, struct dentry *old_dentry,
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struct inode *new_dir, struct dentry *new_dentry,
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unsigned int flags)
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{
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if (is_binderfs_control_device(old_dentry) ||
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is_binderfs_control_device(new_dentry))
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return -EPERM;
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return simple_rename(old_dir, old_dentry, new_dir, new_dentry, flags);
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}
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static int binderfs_unlink(struct inode *dir, struct dentry *dentry)
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{
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if (is_binderfs_control_device(dentry))
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return -EPERM;
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return simple_unlink(dir, dentry);
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}
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static const struct file_operations binder_ctl_fops = {
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.owner = THIS_MODULE,
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.open = nonseekable_open,
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.unlocked_ioctl = binder_ctl_ioctl,
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.compat_ioctl = binder_ctl_ioctl,
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.llseek = noop_llseek,
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};
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/**
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* binderfs_binder_ctl_create - create a new binder-control device
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* @sb: super block of the binderfs mount
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*
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* This function creates a new binder-control device node in the binderfs mount
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* referred to by @sb.
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*
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* Return: 0 on success, negative errno on failure
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*/
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static int binderfs_binder_ctl_create(struct super_block *sb)
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{
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int minor, ret;
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struct dentry *dentry;
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struct binder_device *device;
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struct inode *inode = NULL;
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struct dentry *root = sb->s_root;
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struct binderfs_info *info = sb->s_fs_info;
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#if defined(CONFIG_IPC_NS)
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bool use_reserve = (info->ipc_ns == &init_ipc_ns);
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#else
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bool use_reserve = true;
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#endif
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device = kzalloc(sizeof(*device), GFP_KERNEL);
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if (!device)
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return -ENOMEM;
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/* If we have already created a binder-control node, return. */
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if (info->control_dentry) {
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ret = 0;
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goto out;
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}
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ret = -ENOMEM;
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inode = new_inode(sb);
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if (!inode)
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goto out;
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|
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/* Reserve a new minor number for the new device. */
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mutex_lock(&binderfs_minors_mutex);
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minor = ida_alloc_max(&binderfs_minors,
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use_reserve ? BINDERFS_MAX_MINOR :
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BINDERFS_MAX_MINOR_CAPPED,
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GFP_KERNEL);
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mutex_unlock(&binderfs_minors_mutex);
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if (minor < 0) {
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ret = minor;
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goto out;
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}
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inode->i_ino = SECOND_INODE;
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inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
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init_special_inode(inode, S_IFCHR | 0600,
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MKDEV(MAJOR(binderfs_dev), minor));
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inode->i_fop = &binder_ctl_fops;
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inode->i_uid = info->root_uid;
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inode->i_gid = info->root_gid;
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|
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refcount_set(&device->ref, 1);
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device->binderfs_inode = inode;
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device->miscdev.minor = minor;
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|
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dentry = d_alloc_name(root, "binder-control");
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if (!dentry)
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goto out;
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|
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inode->i_private = device;
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info->control_dentry = dentry;
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d_add(dentry, inode);
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|
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return 0;
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out:
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kfree(device);
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iput(inode);
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|
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return ret;
|
|
}
|
|
|
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static const struct inode_operations binderfs_dir_inode_operations = {
|
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.lookup = simple_lookup,
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.rename = binderfs_rename,
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.unlink = binderfs_unlink,
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};
|
|
|
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static struct inode *binderfs_make_inode(struct super_block *sb, int mode)
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{
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struct inode *ret;
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|
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ret = new_inode(sb);
|
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if (ret) {
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ret->i_ino = iunique(sb, BINDERFS_MAX_MINOR + INODE_OFFSET);
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ret->i_mode = mode;
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ret->i_atime = ret->i_mtime = ret->i_ctime = current_time(ret);
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}
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return ret;
|
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}
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|
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static struct dentry *binderfs_create_dentry(struct dentry *parent,
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const char *name)
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{
|
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struct dentry *dentry;
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dentry = lookup_one_len(name, parent, strlen(name));
|
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if (IS_ERR(dentry))
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return dentry;
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|
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/* Return error if the file/dir already exists. */
|
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if (d_really_is_positive(dentry)) {
|
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dput(dentry);
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return ERR_PTR(-EEXIST);
|
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}
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|
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return dentry;
|
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}
|
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|
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void binderfs_remove_file(struct dentry *dentry)
|
|
{
|
|
struct inode *parent_inode;
|
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|
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parent_inode = d_inode(dentry->d_parent);
|
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inode_lock(parent_inode);
|
|
if (simple_positive(dentry)) {
|
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dget(dentry);
|
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simple_unlink(parent_inode, dentry);
|
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d_delete(dentry);
|
|
dput(dentry);
|
|
}
|
|
inode_unlock(parent_inode);
|
|
}
|
|
|
|
struct dentry *binderfs_create_file(struct dentry *parent, const char *name,
|
|
const struct file_operations *fops,
|
|
void *data)
|
|
{
|
|
struct dentry *dentry;
|
|
struct inode *new_inode, *parent_inode;
|
|
struct super_block *sb;
|
|
|
|
parent_inode = d_inode(parent);
|
|
inode_lock(parent_inode);
|
|
|
|
dentry = binderfs_create_dentry(parent, name);
|
|
if (IS_ERR(dentry))
|
|
goto out;
|
|
|
|
sb = parent_inode->i_sb;
|
|
new_inode = binderfs_make_inode(sb, S_IFREG | 0444);
|
|
if (!new_inode) {
|
|
dput(dentry);
|
|
dentry = ERR_PTR(-ENOMEM);
|
|
goto out;
|
|
}
|
|
|
|
new_inode->i_fop = fops;
|
|
new_inode->i_private = data;
|
|
d_instantiate(dentry, new_inode);
|
|
fsnotify_create(parent_inode, dentry);
|
|
|
|
out:
|
|
inode_unlock(parent_inode);
|
|
return dentry;
|
|
}
|
|
|
|
static struct dentry *binderfs_create_dir(struct dentry *parent,
|
|
const char *name)
|
|
{
|
|
struct dentry *dentry;
|
|
struct inode *new_inode, *parent_inode;
|
|
struct super_block *sb;
|
|
|
|
parent_inode = d_inode(parent);
|
|
inode_lock(parent_inode);
|
|
|
|
dentry = binderfs_create_dentry(parent, name);
|
|
if (IS_ERR(dentry))
|
|
goto out;
|
|
|
|
sb = parent_inode->i_sb;
|
|
new_inode = binderfs_make_inode(sb, S_IFDIR | 0755);
|
|
if (!new_inode) {
|
|
dput(dentry);
|
|
dentry = ERR_PTR(-ENOMEM);
|
|
goto out;
|
|
}
|
|
|
|
new_inode->i_fop = &simple_dir_operations;
|
|
new_inode->i_op = &simple_dir_inode_operations;
|
|
|
|
set_nlink(new_inode, 2);
|
|
d_instantiate(dentry, new_inode);
|
|
inc_nlink(parent_inode);
|
|
fsnotify_mkdir(parent_inode, dentry);
|
|
|
|
out:
|
|
inode_unlock(parent_inode);
|
|
return dentry;
|
|
}
|
|
|
|
static int init_binder_logs(struct super_block *sb)
|
|
{
|
|
struct dentry *binder_logs_root_dir, *dentry, *proc_log_dir;
|
|
struct binderfs_info *info;
|
|
int ret = 0;
|
|
|
|
binder_logs_root_dir = binderfs_create_dir(sb->s_root,
|
|
"binder_logs");
|
|
if (IS_ERR(binder_logs_root_dir)) {
|
|
ret = PTR_ERR(binder_logs_root_dir);
|
|
goto out;
|
|
}
|
|
|
|
dentry = binderfs_create_file(binder_logs_root_dir, "stats",
|
|
&binder_stats_fops, NULL);
|
|
if (IS_ERR(dentry)) {
|
|
ret = PTR_ERR(dentry);
|
|
goto out;
|
|
}
|
|
|
|
dentry = binderfs_create_file(binder_logs_root_dir, "state",
|
|
&binder_state_fops, NULL);
|
|
if (IS_ERR(dentry)) {
|
|
ret = PTR_ERR(dentry);
|
|
goto out;
|
|
}
|
|
|
|
dentry = binderfs_create_file(binder_logs_root_dir, "transactions",
|
|
&binder_transactions_fops, NULL);
|
|
if (IS_ERR(dentry)) {
|
|
ret = PTR_ERR(dentry);
|
|
goto out;
|
|
}
|
|
|
|
dentry = binderfs_create_file(binder_logs_root_dir,
|
|
"transaction_log",
|
|
&binder_transaction_log_fops,
|
|
&binder_transaction_log);
|
|
if (IS_ERR(dentry)) {
|
|
ret = PTR_ERR(dentry);
|
|
goto out;
|
|
}
|
|
|
|
dentry = binderfs_create_file(binder_logs_root_dir,
|
|
"failed_transaction_log",
|
|
&binder_transaction_log_fops,
|
|
&binder_transaction_log_failed);
|
|
if (IS_ERR(dentry)) {
|
|
ret = PTR_ERR(dentry);
|
|
goto out;
|
|
}
|
|
|
|
proc_log_dir = binderfs_create_dir(binder_logs_root_dir, "proc");
|
|
if (IS_ERR(proc_log_dir)) {
|
|
ret = PTR_ERR(proc_log_dir);
|
|
goto out;
|
|
}
|
|
info = sb->s_fs_info;
|
|
info->proc_log_dir = proc_log_dir;
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static int binderfs_fill_super(struct super_block *sb, void *data, int silent)
|
|
{
|
|
int ret;
|
|
struct binderfs_info *info;
|
|
struct inode *inode = NULL;
|
|
struct binderfs_device device_info = { {0} };
|
|
const char *name;
|
|
size_t len;
|
|
|
|
sb->s_blocksize = PAGE_SIZE;
|
|
sb->s_blocksize_bits = PAGE_SHIFT;
|
|
|
|
/*
|
|
* The binderfs filesystem can be mounted by userns root in a
|
|
* non-initial userns. By default such mounts have the SB_I_NODEV flag
|
|
* set in s_iflags to prevent security issues where userns root can
|
|
* just create random device nodes via mknod() since it owns the
|
|
* filesystem mount. But binderfs does not allow to create any files
|
|
* including devices nodes. The only way to create binder devices nodes
|
|
* is through the binder-control device which userns root is explicitly
|
|
* allowed to do. So removing the SB_I_NODEV flag from s_iflags is both
|
|
* necessary and safe.
|
|
*/
|
|
sb->s_iflags &= ~SB_I_NODEV;
|
|
sb->s_iflags |= SB_I_NOEXEC;
|
|
sb->s_magic = BINDERFS_SUPER_MAGIC;
|
|
sb->s_op = &binderfs_super_ops;
|
|
sb->s_time_gran = 1;
|
|
|
|
sb->s_fs_info = kzalloc(sizeof(struct binderfs_info), GFP_KERNEL);
|
|
if (!sb->s_fs_info)
|
|
return -ENOMEM;
|
|
info = sb->s_fs_info;
|
|
|
|
info->ipc_ns = get_ipc_ns(current->nsproxy->ipc_ns);
|
|
|
|
ret = binderfs_parse_mount_opts(data, &info->mount_opts);
|
|
if (ret)
|
|
return ret;
|
|
|
|
info->root_gid = make_kgid(sb->s_user_ns, 0);
|
|
if (!gid_valid(info->root_gid))
|
|
info->root_gid = GLOBAL_ROOT_GID;
|
|
info->root_uid = make_kuid(sb->s_user_ns, 0);
|
|
if (!uid_valid(info->root_uid))
|
|
info->root_uid = GLOBAL_ROOT_UID;
|
|
|
|
inode = new_inode(sb);
|
|
if (!inode)
|
|
return -ENOMEM;
|
|
|
|
inode->i_ino = FIRST_INODE;
|
|
inode->i_fop = &simple_dir_operations;
|
|
inode->i_mode = S_IFDIR | 0755;
|
|
inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
|
|
inode->i_op = &binderfs_dir_inode_operations;
|
|
set_nlink(inode, 2);
|
|
|
|
sb->s_root = d_make_root(inode);
|
|
if (!sb->s_root)
|
|
return -ENOMEM;
|
|
|
|
ret = binderfs_binder_ctl_create(sb);
|
|
if (ret)
|
|
return ret;
|
|
|
|
name = binder_devices_param;
|
|
for (len = strcspn(name, ","); len > 0; len = strcspn(name, ",")) {
|
|
strscpy(device_info.name, name, len + 1);
|
|
ret = binderfs_binder_device_create(inode, NULL, &device_info);
|
|
if (ret)
|
|
return ret;
|
|
name += len;
|
|
if (*name == ',')
|
|
name++;
|
|
}
|
|
|
|
if (info->mount_opts.stats_mode == STATS_GLOBAL)
|
|
return init_binder_logs(sb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct dentry *binderfs_mount(struct file_system_type *fs_type,
|
|
int flags, const char *dev_name,
|
|
void *data)
|
|
{
|
|
return mount_nodev(fs_type, flags, data, binderfs_fill_super);
|
|
}
|
|
|
|
static void binderfs_kill_super(struct super_block *sb)
|
|
{
|
|
struct binderfs_info *info = sb->s_fs_info;
|
|
|
|
kill_litter_super(sb);
|
|
|
|
if (info && info->ipc_ns)
|
|
put_ipc_ns(info->ipc_ns);
|
|
|
|
kfree(info);
|
|
}
|
|
|
|
static struct file_system_type binder_fs_type = {
|
|
.name = "binder",
|
|
.mount = binderfs_mount,
|
|
.kill_sb = binderfs_kill_super,
|
|
.fs_flags = FS_USERNS_MOUNT,
|
|
};
|
|
|
|
int __init init_binderfs(void)
|
|
{
|
|
int ret;
|
|
const char *name;
|
|
size_t len;
|
|
|
|
/* Verify that the default binderfs device names are valid. */
|
|
name = binder_devices_param;
|
|
for (len = strcspn(name, ","); len > 0; len = strcspn(name, ",")) {
|
|
if (len > BINDERFS_MAX_NAME)
|
|
return -E2BIG;
|
|
name += len;
|
|
if (*name == ',')
|
|
name++;
|
|
}
|
|
|
|
/* Allocate new major number for binderfs. */
|
|
ret = alloc_chrdev_region(&binderfs_dev, 0, BINDERFS_MAX_MINOR,
|
|
"binder");
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = register_filesystem(&binder_fs_type);
|
|
if (ret) {
|
|
unregister_chrdev_region(binderfs_dev, BINDERFS_MAX_MINOR);
|
|
return ret;
|
|
}
|
|
|
|
return ret;
|
|
}
|