Merge 4.19.252 into android-4.19-stable
Linux 4.19.252
dmaengine: ti: Add missing put_device in ti_dra7_xbar_route_allocate
dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate
dmaengine: at_xdma: handle errors of at_xdmac_alloc_desc() correctly
dmaengine: pl330: Fix lockdep warning about non-static key
* ida: don't use BUG_ON() for debugging
lib/idr.c
misc: rtsx_usb: set return value in rsp_buf alloc err path
* misc: rtsx_usb: use separate command and response buffers
include/linux/rtsx_usb.h
* misc: rtsx_usb: fix use of dma mapped buffer for usb bulk transfer
include/linux/rtsx_usb.h
i2c: cadence: Unregister the clk notifier in error path
selftests: forwarding: fix error message in learning_test
selftests: forwarding: fix learning_test when h1 supports IFF_UNICAST_FLT
selftests: forwarding: fix flood_unicast_test when h2 supports IFF_UNICAST_FLT
ibmvnic: Properly dispose of all skbs during a failover.
ARM: at91: pm: use proper compatible for sama5d2's rtc
pinctrl: sunxi: a83t: Fix NAND function name for some pins
ARM: meson: Fix refcount leak in meson_smp_prepare_cpus
xfs: remove incorrect ASSERT in xfs_rename
can: kvaser_usb: kvaser_usb_leaf: fix bittiming limits
can: kvaser_usb: kvaser_usb_leaf: fix CAN clock frequency regression
can: kvaser_usb: replace run-time checks with struct kvaser_usb_driver_info
powerpc/powernv: delay rng platform device creation until later in boot
* video: of_display_timing.h: include errno.h
include/video/of_display_timing.h
fbcon: Disallow setting font bigger than screen size
iommu/vt-d: Fix PCI bus rescan device hot add
net: rose: fix UAF bug caused by rose_t0timer_expiry
* usbnet: fix memory leak in error case
drivers/net/usb/usbnet.c
can: gs_usb: gs_usb_open/close(): fix memory leak
can: grcan: grcan_probe(): remove extra of_node_get()
can: bcm: use call_rcu() instead of costly synchronize_rcu()
* mm/slub: add missing TID updates on slab deactivation
mm/slub.c
* esp: limit skb_page_frag_refill use to a single page
include/net/esp.h
net/ipv4/esp4.c
net/ipv6/esp6.c
Merge 4.19.251 into android-4.19-stable
Merge 4.19.250 into android-4.19-stable
* ANDROID: revert some RNG function signature changes
drivers/char/random.c
include/linux/random.h
* ANDROID: cpu/hotplug: avoid breaking Android ABI by fusing cpuhp steps
include/linux/cpuhotplug.h
kernel/cpu.c
Merge 4.19.249 into android-4.19-stable
* UPSTREAM: lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI
include/crypto/internal/blake2s.h
lib/crypto/blake2s.c
* BACKPORT: lib/crypto: add prompts back to crypto libraries
crypto/Kconfig
lib/Kconfig
lib/crypto/Kconfig
* BACKPORT: lib/crypto: blake2s: include as built-in
crypto/Kconfig
drivers/net/Kconfig
include/crypto/internal/blake2s.h
lib/crypto/Kconfig
lib/crypto/Makefile
lib/crypto/blake2s-generic.c
lib/crypto/blake2s.c
Linux 4.19.251
net: usb: qmi_wwan: add Telit 0x1070 composition
net: usb: qmi_wwan: add Telit 0x1060 composition
xen/arm: Fix race in RB-tree based P2M accounting
xen/blkfront: force data bouncing when backend is untrusted
xen/netfront: force data bouncing when backend is untrusted
xen/netfront: fix leaking data in shared pages
xen/blkfront: fix leaking data in shared pages
* ipv6/sit: fix ipip6_tunnel_get_prl return value
net/ipv6/sit.c
* sit: use min
net/ipv6/sit.c
net: dsa: bcm_sf2: force pause link settings
hwmon: (ibmaem) don't call platform_device_del() if platform_device_add() fails
xen/gntdev: Avoid blocking in unmap_grant_pages()
* net: tun: avoid disabling NAPI twice
drivers/net/tun.c
NFC: nxp-nci: Don't issue a zero length i2c_master_read()
nfc: nfcmrvl: Fix irq_of_parse_and_map() return value
* net: bonding: fix use-after-free after 802.3ad slave unbind
drivers/net/bonding/bond_3ad.c
* net: bonding: fix possible NULL deref in rlb code
drivers/net/bonding/bond_alb.c
netfilter: nft_dynset: restore set element counter when failing to update
caif_virtio: fix race between virtio_device_ready() and ndo_open()
net: ipv6: unexport __init-annotated seg6_hmac_net_init()
* usbnet: fix memory allocation in helpers
drivers/net/usb/usbnet.c
RDMA/qedr: Fix reporting QP timeout attribute
* net: tun: stop NAPI when detaching queues
drivers/net/tun.c
* net: tun: unlink NAPI from device on destruction
drivers/net/tun.c
selftests/net: pass ipv6_args to udpgso_bench's IPv6 TCP test
virtio-net: fix race between ndo_open() and virtio_device_ready()
* net: usb: ax88179_178a: Fix packet receiving
drivers/net/usb/ax88179_178a.c
net: rose: fix UAF bugs caused by timer handler
SUNRPC: Fix READ_PLUS crasher
s390/archrandom: simplify back to earlier design and initialize earlier
dm raid: fix KASAN warning in raid5_add_disks
dm raid: fix accesses beyond end of raid member array
nvdimm: Fix badblocks clear off-by-one error
* UPSTREAM: crypto: poly1305 - fix poly1305_core_setkey() declaration
include/crypto/internal/poly1305.h
include/crypto/poly1305.h
lib/crypto/poly1305-donna64.c
lib/crypto/poly1305.c
* UPSTREAM: mm: fix misplaced unlock_page in do_wp_page()
mm/memory.c
* BACKPORT: mm: do_wp_page() simplification
mm/memory.c
* UPSTREAM: mm/ksm: Remove reuse_ksm_page()
include/linux/ksm.h
* UPSTREAM: mm: reuse only-pte-mapped KSM page in do_wp_page()
include/linux/ksm.h
mm/memory.c
Linux 4.19.250
* swiotlb: skip swiotlb_bounce when orig_addr is zero
kernel/dma/swiotlb.c
* net/sched: move NULL ptr check to qdisc_put() too
net/sched/sch_generic.c
net: mscc: ocelot: allow unregistered IP multicast flooding
* kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
include/linux/kexec.h
* fdt: Update CRC check for rng-seed
drivers/of/fdt.c
xen: unexport __init-annotated xen_xlate_map_ballooned_pages()
* drm: remove drm_fb_helper_modinit
drivers/gpu/drm/drm_crtc_helper_internal.h
drivers/gpu/drm/drm_kms_helper_common.c
powerpc/pseries: wire up rng during setup_arch()
* kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS (2nd attempt)
Makefile
* modpost: fix section mismatch check for exported init/exit sections
scripts/mod/modpost.c
ARM: cns3xxx: Fix refcount leak in cns3xxx_init
ARM: Fix refcount leak in axxia_boot_secondary
soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe
ARM: exynos: Fix refcount leak in exynos_map_pmu
ARM: dts: imx6qdl: correct PU regulator ramp delay
powerpc/powernv: wire up rng during setup_arch
powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address
powerpc: Enable execve syscall exit tracepoint
xtensa: Fix refcount leak bug in time.c
xtensa: xtfpga: Fix refcount leak bug in setup
iio: adc: axp288: Override TS pin bias current for some models
iio: trigger: sysfs: fix use-after-free on remove
iio: gyro: mpu3050: Fix the error handling in mpu3050_power_up()
iio: accel: mma8452: ignore the return value of reset operation
iio:accel:bma180: rearrange iio trigger get and register
iio:chemical:ccs811: rearrange iio trigger get and register
usb: chipidea: udc: check request status before setting device address
* xhci: turn off port power in shutdown
drivers/usb/host/xhci-hub.c
drivers/usb/host/xhci.c
drivers/usb/host/xhci.h
iio: adc: vf610: fix conversion mode sysfs node name
gpio: winbond: Fix error code in winbond_gpio_get()
virtio_net: fix xdp_rxq_info bug after suspend/resume
igb: Make DMA faster when CPU is active on the PCIe link
afs: Fix dynamic root getattr
MIPS: Remove repetitive increase irq_err_count
x86/xen: Remove undefined behavior in setup_features()
erspan: do not assume transport header is always set
* net/sched: sch_netem: Fix arithmetic in netem_dump() for 32-bit platforms
net/sched/sch_netem.c
* bonding: ARP monitor spams NETDEV_NOTIFY_PEERS notifiers
drivers/net/bonding/bond_main.c
USB: serial: option: add Quectel RM500K module support
USB: serial: option: add Quectel EM05-G modem
USB: serial: option: add Telit LE910Cx 0x1250 composition
* random: quiet urandom warning ratelimit suppression message
drivers/char/random.c
include/linux/ratelimit.h
dm era: commit metadata in postsuspend after worker stops
* ata: libata: add qc->flags in ata_qc_complete_template tracepoint
include/trace/events/libata.h
ALSA: hda/realtek: Add quirk for Clevo PD70PNT
ALSA: hda/conexant: Fix missing beep setup
ALSA: hda/via: Fix missing beep setup
* random: schedule mix_interrupt_randomness() less often
drivers/char/random.c
vt: drop old FONT ioctls
Linux 4.19.249
* Revert "hwmon: Make chip parameter for with_info API mandatory"
drivers/hwmon/hwmon.c
* tcp: drop the hash_32() part from the index calculation
net/ipv4/inet_hashtables.c
* tcp: increase source port perturb table to 2^16
net/ipv4/inet_hashtables.c
* tcp: dynamically allocate the perturb table used by source ports
net/ipv4/inet_hashtables.c
* tcp: add small random increments to the source port
net/ipv4/inet_hashtables.c
* tcp: use different parts of the port_offset for index and offset
net/ipv4/inet_hashtables.c
* tcp: add some entropy in __inet_hash_connect()
net/ipv4/inet_hashtables.c
xprtrdma: fix incorrect header size calculations
* usb: gadget: u_ether: fix regression in setting fixed MAC address
drivers/usb/gadget/function/u_ether.c
s390/mm: use non-quiescing sske for KVM switch to keyed guest
powerpc/mm: Switch obsolete dssall to .long
RISC-V: fix barrier() use in <vdso/processor.h>
net: openvswitch: fix leak of nested actions
net: openvswitch: fix misuse of the cached connection on tuple changes
virtio-pci: Remove wrong address verification in vp_del_vqs()
* ext4: add reserved GDT blocks check
fs/ext4/resize.c
* ext4: make variable "count" signed
fs/ext4/namei.c
* ext4: fix bug_on ext4_mb_use_inode_pa
fs/ext4/mballoc.c
serial: 8250: Store to lsr_save_flags after lsr read
usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe
usb: dwc2: Fix memory leak in dwc2_hcd_init
USB: serial: io_ti: add Agilent E5805A support
USB: serial: option: add support for Cinterion MV31 with new baseline
comedi: vmk80xx: fix expression for tx buffer size
* irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions
drivers/irqchip/irq-gic-v3.c
irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
faddr2line: Fix overlapping text section failures, the sequel
certs/blacklist_hashes.c: fix const confusion in certs blacklist
arm64: ftrace: fix branch range checks
net: bgmac: Fix an erroneous kfree() in bgmac_remove()
mlxsw: spectrum_cnt: Reorder counter pools
misc: atmel-ssc: Fix IRQ check in ssc_probe
tty: goldfish: Fix free_irq() on remove
i40e: Fix call trace in setup_tx_descriptors
i40e: Fix adding ADQ filter to TC0
pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE
* random: credit cpu and bootloader seeds by default
drivers/char/Kconfig
net: ethernet: mtk_eth_soc: fix misuse of mem alloc interface netdev[napi]_alloc_frag
* ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
net/l2tp/l2tp_ip6.c
nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred
virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed
scsi: pmcraid: Fix missing resource cleanup in error case
scsi: ipr: Fix missing/incorrect resource cleanup in error case
scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology
scsi: vmw_pvscsi: Expand vcpuHint to 16 bits
* ASoC: wm_adsp: Fix event generation for wm_adsp_fw_put()
sound/soc/codecs/wm_adsp.c
ASoC: es8328: Fix event generation for deemphasis control
ASoC: wm8962: Fix suspend while playing music
ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()
ASoC: cs42l56: Correct typo in minimum level for SX volume controls
ASoC: cs42l52: Correct TLV for Bypass Volume
ASoC: cs53l30: Correct number of volume levels on SX controls
ASoC: cs42l52: Fix TLV scales for mixer controls
powerpc/kasan: Silence KASAN warnings in __get_wchan()
* random: account for arch randomness in bits
drivers/char/random.c
* random: mark bootloader randomness code as __init
drivers/char/random.c
include/linux/random.h
* random: avoid checking crng_ready() twice in random_init()
drivers/char/random.c
* crypto: drbg - make reseeding from get_random_bytes() synchronous
crypto/drbg.c
drivers/char/random.c
include/crypto/drbg.h
* crypto: drbg - always try to free Jitter RNG instance
crypto/drbg.c
* crypto: drbg - move dynamic ->reseed_threshold adjustments to __drbg_seed()
crypto/drbg.c
* crypto: drbg - track whether DRBG was seeded with !rng_is_initialized()
crypto/drbg.c
include/crypto/drbg.h
* crypto: drbg - prepare for more fine-grained tracking of seeding state
crypto/drbg.c
include/crypto/drbg.h
* crypto: drbg - always seeded with SP800-90B compliant noise source
crypto/drbg.c
include/crypto/drbg.h
* crypto: drbg - add FIPS 140-2 CTRNG for noise source
crypto/drbg.c
include/crypto/drbg.h
* Revert "random: use static branch for crng_ready()"
drivers/char/random.c
* random: check for signals after page of pool writes
drivers/char/random.c
* random: wire up fops->splice_{read,write}_iter()
drivers/char/random.c
* random: convert to using fops->write_iter()
drivers/char/random.c
* random: move randomize_page() into mm where it belongs
drivers/char/random.c
include/linux/mm.h
include/linux/random.h
mm/util.c
* random: move initialization functions out of hot pages
drivers/char/random.c
* random: use proper return types on get_random_{int,long}_wait()
drivers/char/random.c
include/linux/random.h
* random: remove extern from functions in header
include/linux/random.h
* random: use static branch for crng_ready()
drivers/char/random.c
* random: credit architectural init the exact amount
drivers/char/random.c
* random: handle latent entropy and command line from random_init()
drivers/char/random.c
include/linux/random.h
init/main.c
* random: use proper jiffies comparison macro
drivers/char/random.c
* random: remove ratelimiting for in-kernel unseeded randomness
drivers/char/random.c
lib/Kconfig.debug
* random: avoid initializing twice in credit race
drivers/char/random.c
* random: use symbolic constants for crng_init states
drivers/char/random.c
* siphash: use one source of truth for siphash permutations
drivers/char/random.c
include/linux/prandom.h
include/linux/siphash.h
lib/siphash.c
* random: help compiler out with fast_mix() by using simpler arguments
drivers/char/random.c
* random: do not use input pool from hard IRQs
drivers/char/random.c
* random: order timer entropy functions below interrupt functions
drivers/char/random.c
* random: do not pretend to handle premature next security model
drivers/char/random.c
* random: do not use batches when !crng_ready()
drivers/char/random.c
* random: insist on random_get_entropy() existing in order to simplify
drivers/char/random.c
xtensa: use fallback for random_get_entropy() instead of zero
sparc: use fallback for random_get_entropy() instead of zero
um: use fallback for random_get_entropy() instead of zero
x86/tsc: Use fallback for random_get_entropy() instead of zero
nios2: use fallback for random_get_entropy() instead of zero
arm: use fallback for random_get_entropy() instead of zero
mips: use fallback for random_get_entropy() instead of just c0 random
m68k: use fallback for random_get_entropy() instead of zero
* timekeeping: Add raw clock fallback for random_get_entropy()
include/linux/timex.h
kernel/time/timekeeping.c
powerpc: define get_cycles macro for arch-override
alpha: define get_cycles macro for arch-override
parisc: define get_cycles macro for arch-override
s390: define get_cycles macro for arch-override
ia64: define get_cycles macro for arch-override
* init: call time_init() before rand_initialize()
init/main.c
random: fix sysctl documentation nits
* random: document crng_fast_key_erasure() destination possibility
drivers/char/random.c
* random: make random_get_entropy() return an unsigned long
drivers/char/random.c
include/linux/timex.h
* random: check for signals every PAGE_SIZE chunk of /dev/[u]random
drivers/char/random.c
* random: check for signal_pending() outside of need_resched() check
drivers/char/random.c
* random: do not allow user to keep crng key around on stack
drivers/char/random.c
* random: do not split fast init input in add_hwgenerator_randomness()
drivers/char/random.c
* random: mix build-time latent entropy into pool at init
drivers/char/random.c
* random: re-add removed comment about get_random_{u32,u64} reseeding
drivers/char/random.c
* random: treat bootloader trust toggle the same way as cpu trust toggle
drivers/char/Kconfig
drivers/char/random.c
* random: skip fast_init if hwrng provides large chunk of entropy
drivers/char/random.c
* random: check for signal and try earlier when generating entropy
drivers/char/random.c
* random: reseed more often immediately after booting
drivers/char/random.c
* random: make consistent usage of crng_ready()
drivers/char/random.c
* random: use SipHash as interrupt entropy accumulator
drivers/char/random.c
* random: replace custom notifier chain with standard one
crypto/drbg.c
drivers/char/random.c
include/crypto/drbg.h
include/linux/random.h
lib/random32.c
lib/vsprintf.c
* random: don't let 644 read-only sysctls be written to
drivers/char/random.c
* random: give sysctl_random_min_urandom_seed a more sensible value
drivers/char/random.c
* random: do crng pre-init loading in worker rather than irq
drivers/char/random.c
* random: unify cycles_t and jiffies usage and types
drivers/char/random.c
* random: cleanup UUID handling
drivers/char/random.c
* random: only wake up writers after zap if threshold was passed
drivers/char/random.c
* random: round-robin registers as ulong, not u32
drivers/char/random.c
* random: clear fast pool, crng, and batches in cpuhp bring up
drivers/char/random.c
include/linux/cpuhotplug.h
include/linux/random.h
kernel/cpu.c
* random: pull add_hwgenerator_randomness() declaration into random.h
drivers/char/hw_random/core.c
include/linux/hw_random.h
include/linux/random.h
* random: check for crng_init == 0 in add_device_randomness()
drivers/char/random.c
* random: unify early init crng load accounting
drivers/char/random.c
* random: do not take pool spinlock at boot
drivers/char/random.c
* random: defer fast pool mixing to worker
drivers/char/random.c
* random: rewrite header introductory comment
drivers/char/random.c
* random: group sysctl functions
drivers/char/random.c
* random: group userspace read/write functions
drivers/char/random.c
* random: group entropy collection functions
drivers/char/random.c
* random: group entropy extraction functions
drivers/char/random.c
* random: group initialization wait functions
drivers/char/random.c
* random: remove whitespace and reorder includes
drivers/char/random.c
* random: remove useless header comment
include/linux/random.h
* random: introduce drain_entropy() helper to declutter crng_reseed()
drivers/char/random.c
* random: deobfuscate irq u32/u64 contributions
drivers/char/random.c
* random: add proper SPDX header
drivers/char/random.c
* random: remove unused tracepoints
drivers/char/random.c
lib/random32.c
* random: remove ifdef'd out interrupt bench
drivers/char/random.c
* random: tie batched entropy generation to base_crng generation
drivers/char/random.c
* random: zero buffer after reading entropy from userspace
drivers/char/random.c
* random: remove outdated INT_MAX >> 6 check in urandom_read()
drivers/char/random.c
* random: use hash function for crng_slow_load()
drivers/char/random.c
include/linux/hw_random.h
include/linux/random.h
* random: absorb fast pool into input pool after fast load
drivers/char/random.c
* random: do not xor RDRAND when writing into /dev/random
drivers/char/random.c
* random: ensure early RDSEED goes through mixer on init
drivers/char/random.c
* random: inline leaves of rand_initialize()
drivers/char/random.c
* random: use RDSEED instead of RDRAND in entropy extraction
drivers/char/random.c
* random: fix locking in crng_fast_load()
drivers/char/random.c
* random: remove batched entropy locking
drivers/char/random.c
* random: remove use_input_pool parameter from crng_reseed()
drivers/char/random.c
* random: make credit_entropy_bits() always safe
drivers/char/random.c
* random: always wake up entropy writers after extraction
drivers/char/random.c
* random: use linear min-entropy accumulation crediting
drivers/char/random.c
* random: simplify entropy debiting
drivers/char/random.c
* random: use computational hash for entropy extraction
drivers/char/random.c
* random: only call crng_finalize_init() for primary_crng
drivers/char/random.c
* random: access primary_pool directly rather than through pointer
drivers/char/random.c
* random: continually use hwgenerator randomness
drivers/char/random.c
* random: simplify arithmetic function flow in account()
drivers/char/random.c
* random: access input_pool_data directly rather than through pointer
drivers/char/random.c
* random: cleanup fractional entropy shift constants
drivers/char/random.c
* random: prepend remaining pool constants with POOL_
drivers/char/random.c
* random: de-duplicate INPUT_POOL constants
drivers/char/random.c
* random: remove unused OUTPUT_POOL constants
drivers/char/random.c
* random: rather than entropy_store abstraction, use global
drivers/char/random.c
* random: remove unused extract_entropy() reserved argument
drivers/char/random.c
* random: remove incomplete last_data logic
drivers/char/random.c
* random: cleanup integer types
drivers/char/random.c
* random: cleanup poolinfo abstraction
drivers/char/random.c
* random: fix typo in comments
drivers/char/random.c
* random: don't reset crng_init_cnt on urandom_read()
drivers/char/random.c
* random: avoid superfluous call to RDRAND in CRNG extraction
drivers/char/random.c
* random: early initialization of ChaCha constants
drivers/char/random.c
* random: initialize ChaCha20 constants with correct endianness
drivers/char/random.c
* random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs
drivers/char/random.c
* random: harmonize "crng init done" messages
drivers/char/random.c
* random: mix bootloader randomness into pool
drivers/char/random.c
* random: do not re-init if crng_reseed completes before primary init
drivers/char/random.c
* random: do not sign extend bytes for rotation when mixing
drivers/char/random.c
* random: use BLAKE2s instead of SHA1 in extraction
drivers/char/random.c
* random: remove unused irq_flags argument from add_interrupt_randomness()
drivers/char/random.c
include/linux/random.h
kernel/irq/handle.c
* random: document add_hwgenerator_randomness() with other input functions
drivers/char/random.c
* crypto: blake2s - adjust include guard naming
include/crypto/blake2s.h
include/crypto/internal/blake2s.h
* crypto: blake2s - include <linux/bug.h> instead of <asm/bug.h>
include/crypto/blake2s.h
MAINTAINERS: co-maintain random.c
* random: remove dead code left over from blocking pool
drivers/char/random.c
* random: avoid arch_get_random_seed_long() when collecting IRQ randomness
drivers/char/random.c
* random: add arch_get_random_*long_early()
drivers/char/random.c
include/linux/random.h
powerpc: Use bool in archrandom.h
* linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
include/linux/random.h
* linux/random.h: Use false with bool
include/linux/random.h
* linux/random.h: Remove arch_has_random, arch_has_random_seed
include/linux/random.h
s390: Remove arch_has_random, arch_has_random_seed
powerpc: Remove arch_has_random, arch_has_random_seed
x86: Remove arch_has_random, arch_has_random_seed
* random: avoid warnings for !CONFIG_NUMA builds
drivers/char/random.c
* random: split primary/secondary crng init paths
drivers/char/random.c
* random: remove some dead code of poolinfo
drivers/char/random.c
* random: fix typo in add_timer_randomness()
drivers/char/random.c
* random: Add and use pr_fmt()
drivers/char/random.c
* random: convert to ENTROPY_BITS for better code readability
drivers/char/random.c
* random: remove unnecessary unlikely()
drivers/char/random.c
* random: remove kernel.random.read_wakeup_threshold
drivers/char/random.c
* random: delete code to pull data into pools
drivers/char/random.c
* random: remove the blocking pool
drivers/char/random.c
* random: fix crash on multiple early calls to add_bootloader_randomness()
drivers/char/random.c
* char/random: silence a lockdep splat with printk()
drivers/char/random.c
* random: make /dev/random be almost like /dev/urandom
drivers/char/random.c
* random: ignore GRND_RANDOM in getentropy(2)
drivers/char/random.c
include/uapi/linux/random.h
* random: add GRND_INSECURE to return best-effort non-cryptographic bytes
drivers/char/random.c
include/uapi/linux/random.h
* random: Add a urandom_read_nowait() for random APIs that don't warn
drivers/char/random.c
* random: Don't wake crng_init_wait when crng_init == 1
drivers/char/random.c
* lib/crypto: sha1: re-roll loops to reduce code size
lib/sha1.c
* lib/crypto: blake2s: move hmac construction into wireguard
include/crypto/blake2s.h
lib/crypto/blake2s.c
* crypto: blake2s - generic C library implementation and selftest
include/crypto/blake2s.h
include/crypto/internal/blake2s.h
lib/Makefile
lib/crypto/Makefile
lib/crypto/blake2s-generic.c
lib/crypto/blake2s.c
* Revert "hwrng: core - Freeze khwrng thread during suspend"
drivers/char/random.c
* char/random: Add a newline at the end of the file
drivers/char/random.c
* random: Use wait_event_freezable() in add_hwgenerator_randomness()
drivers/char/random.c
* fdt: add support for rng-seed
drivers/char/Kconfig
drivers/char/random.c
drivers/of/fdt.c
include/linux/random.h
* random: Support freezable kthreads in add_hwgenerator_randomness()
drivers/char/random.c
* random: fix soft lockup when trying to read from an uninitialized blocking pool
drivers/char/random.c
* latent_entropy: avoid build error when plugin cflags are not set
include/linux/random.h
* random: document get_random_int() family
drivers/char/random.c
* random: move rand_initialize() earlier
drivers/char/random.c
include/linux/random.h
init/main.c
* random: only read from /dev/random after its pool has received 128 bits
drivers/char/random.c
* drivers/char/random.c: make primary_crng static
drivers/char/random.c
* drivers/char/random.c: remove unused stuct poolinfo::poolbits
drivers/char/random.c
* drivers/char/random.c: constify poolinfo_table
drivers/char/random.c
9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"
Bug: 240880948
Change-Id: I46de87f5e1ff2146dbc394d88275d609ee871bc1
Signed-off-by: Lucas Wei <lucaswei@google.com>
commit 3663a2fb325b8782524f3edb0ae32d6faa615109 upstream.
If CONFIG_OF is not enabled, default of_get_display_timing() returns an
errno, so include the header.
Fixes: 422b67e0b3 ("videomode: provide dummy inline functions for !CONFIG_OF")
Suggested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is a snapshot of mdss driver from msm-4.14
as of commit '15e898828d1e (fbdev: msm: Avoid UAF
in mdss_dsi_cmd_write)'.
Change-Id: I16fe01fd45855d5c268c210ec61f09c6fa625761
Signed-off-by: Nirmal Abraham <nabrah@codeaurora.org>
Signed-off-by: Althaf Neelanchirayil <aneelanc@codeaurora.org>
commit babc250e278eac7b0e671bdaedf833759b43bb78 upstream.
Rendering calls may be done simultaneously from the workqueue,
dlfb_ops_write, dlfb_ops_ioctl, dlfb_ops_set_par and dlfb_dpy_deferred_io.
The code is robust enough so that it won't crash on concurrent rendering.
However, concurrent rendering may cause display corruption if the same
pixel is simultaneously being rendered. In order to avoid this corruption,
this patch adds a mutex around the rendering calls.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Bernie Thompson <bernie@plugable.com>
Cc: Ladislav Michl <ladis@linux-mips.org>
Cc: <stable@vger.kernel.org>
[b.zolnierkie: replace "dlfb:" with "uldfb:" in the patch summary]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 6b11f9d8433b471fdd3ebed232b43a4b723be6ff upstream.
If a framebuffer device is used as a console, the rendering calls
(copyarea, fillrect, imageblit) may be done with the console spinlock
held. On udlfb, these function call dlfb_handle_damage that takes a
blocking semaphore before acquiring an URB.
In order to fix the bug, this patch changes the calls copyarea, fillrect
and imageblit to offload USB work to a workqueue.
A side effect of this patch is 3x improvement in console scrolling speed
because the device doesn't have to be updated after each copyarea call.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Bernie Thompson <bernie@plugable.com>
Cc: Ladislav Michl <ladis@linux-mips.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 68a958a915ca912b8ce71b9eea7445996f6e681e upstream.
The udlfb driver maintained an open count and cleaned up itself when the
count reached zero. But the console is also counted in the reference count
- so, if the user unplugged the device, the open count would not drop to
zero and the driver stayed loaded with console attached. If the user
re-plugged the adapter, it would create a device /dev/fb1, show green
screen and the access to the console would be lost.
The framebuffer subsystem has reference counting on its own - in order to
fix the unplug bug, we rely the framebuffer reference counting. When the
user unplugs the adapter, we call unregister_framebuffer unconditionally.
unregister_framebuffer will unbind the console, wait until all users stop
using the framebuffer and then call the fb_destroy method. The fb_destroy
cleans up the USB driver.
This patch makes the following changes:
* Drop dlfb->kref and rely on implicit framebuffer reference counting
instead.
* dlfb_usb_disconnect calls unregister_framebuffer, the rest of driver
cleanup is done in the function dlfb_ops_destroy. dlfb_ops_destroy will
be called by the framebuffer subsystem when no processes have the
framebuffer open or mapped.
* We don't use workqueue during initialization, but initialize directly
from dlfb_usb_probe. The workqueue could race with dlfb_usb_disconnect
and this racing would produce various kinds of memory corruption.
* We use usb_get_dev and usb_put_dev to make sure that the USB subsystem
doesn't free the device under us.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
cc: Dave Airlie <airlied@redhat.com>
Cc: Bernie Thompson <bernie@plugable.com>,
Cc: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"Mostly small fixes and cleanups for fb drivers (the biggest updates
are for udlfb and pxafb drivers). This also adds deferred console
takeover support to the console code and efifb driver.
Summary:
- add support for deferred console takeover, when enabled defers
fbcon taking over the console from the dummy console until the
first text is displayed on the console - together with the "quiet"
kernel commandline option this allows fbcon to still be used
together with a smooth graphical bootup (Hans de Goede)
- improve console locking debugging code (Thomas Zimmermann)
- copy the ACPI BGRT boot graphics to the framebuffer when deferred
console takeover support is used in efifb driver (Hans de Goede)
- update udlfb driver - fix lost console when the user unplugs a USB
adapter, fix the screen corruption issue, fix locking and add some
performance optimizations (Mikulas Patocka)
- update pxafb driver - fix using uninitialized memory, switch to
devm_* API, handle initialization errors and add support for
lcd-supply regulator (Daniel Mack)
- add support for boards booted with a DeviceTree in pxa3xx_gcu
driver (Daniel Mack)
- rename omap2 module to omap2fb.ko to avoid conflicts with omap1
driver (Arnd Bergmann)
- enable ACPI-based enumeration for goldfishfb driver (Yu Ning)
- fix goldfishfb driver to make user space Android code use 60 fps
(Christoffer Dall)
- print big fat warning when nomodeset kernel parameter is used in
vgacon driver (Lyude Paul)
- remove VLA usage from fsl-diu-fb driver (Kees Cook)
- misc fixes (Julia Lawall, Geert Uytterhoeven, Fredrik Noring,
Yisheng Xie, Dan Carpenter, Daniel Vetter, Anton Vasilyev, Randy
Dunlap, Gustavo A. R. Silva, Colin Ian King, Fengguang Wu)
- misc cleanups (Roman Kiryanov, Yisheng Xie, Colin Ian King)"
* tag 'fbdev-v4.19' of https://github.com/bzolnier/linux: (54 commits)
Documentation/fb: corrections for fbcon.txt
fbcon: Do not takeover the console from atomic context
dummycon: Stop exporting dummycon_[un]register_output_notifier
fbcon: Only defer console takeover if the current console driver is the dummycon
fbcon: Only allow FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER if fbdev is builtin
fbdev: omap2: omapfb: fix ifnullfree.cocci warnings
fbdev: omap2: omapfb: fix bugon.cocci warnings
fbdev: omap2: omapfb: fix boolreturn.cocci warnings
fb: amifb: fix build warnings when not builtin
fbdev/core: Disable console-lock warnings when fb.lockless_register_fb is set
console: Replace #if 0 with atomic var 'ignore_console_lock_warning'
udlfb: use spin_lock_irq instead of spin_lock_irqsave
udlfb: avoid prefetch
udlfb: optimization - test the backing buffer
udlfb: allow reallocating the framebuffer
udlfb: set line_length in dlfb_ops_set_par
udlfb: handle allocation failure
udlfb: set optimal write delay
udlfb: make a local copy of fb_ops
udlfb: don't switch if we are switching to the same videomode
...
This patch changes udlfb so that it may reallocate the framebuffer when
setting higher-resolution mode. If we boot the system without monitor
attached, udlfb creates a framebuffer with the size 800x600. This patch
makes it possible to select higher videomode with the fbset command when
a monitor is attached.
Note that there is no reliable way to prevent the system from touching the
old framebuffer, so we must not free it. We add it to the list
dlfb->deferred_free and free it when the driver is unloaded.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
[b.zolnierkie: sparse fixes]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
The default delay 5 jiffies is too much when the kernel is compiled with
HZ=100 - it results in jumpy cursor in Xwindow.
In order to find out the optimal delay, I benchmarked the driver on
1280x720x30fps video. I found out that with HZ=1000, 10ms is acceptable,
but with HZ=250 or HZ=300, we need 4ms, so that the video is played
without any frame skips.
This patch changes the delay to this value.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
The defio subsystem overwrites the method fb_osp->mmap. That method is
stored in module's static data - and that means that if we have multiple
diplaylink adapters, they will over write each other's method.
In order to avoid interference between multiple adapters, we copy the
fb_ops structure to a device-local memory.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
The udlfb driver reprograms the hardware everytime the user switches the
console, that makes quite unusable when working on the console.
This patch makes the driver remember the videomode we are in and avoid
reprogramming the hardware if we switch to the same videomode.
We mask the "activate" field and the "FB_VMODE_SMOOTH_XPAN" flag when
comparing the videomode, because they cause spurious switches when
switching to and from the Xserver.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
I observed that the performance of the udl fb driver degrades over time.
On a freshly booted machine, it takes 6 seconds to do "ls -la /usr/bin";
after some time of use, the same operation takes 14 seconds.
The reason is that the value of "limit_sem" decays over time.
The udl driver uses a semaphore "limit_set" to specify how many free urbs
are there on dlfb->urbs.list. If the count is zero, the "down" operation
will sleep until some urbs are added to the freelist.
In order to avoid some hypothetical deadlock, the driver will not call
"up" immediately, but it will offload it to a workqueue. The problem is
that if we call "schedule_delayed_work" on the same work item multiple
times, the work item may only be executed once.
This is happening:
* some urb completes
* dlfb_urb_completion adds it to the free list
* dlfb_urb_completion calls schedule_delayed_work to schedule the function
dlfb_release_urb_work to increase the semaphore count
* as the urb is on the free list, some other task grabs it and submits it
* the submitted urb completes, dlfb_urb_completion is called again
* dlfb_urb_completion calls schedule_delayed_work, but the work is already
scheduled, so it does nothing
* finally, dlfb_release_urb_work is called, it increases the semaphore
count by 1, although it should increase it by 2
So, the semaphore count is decreasing over time, and this causes gradual
performance degradation.
Note that in the current kernel, the "up" function may be called from
interrupt and it may race with the "down" function called by another
thread, so we don't have to offload the call of "up" to a workqueue at
all. This patch removes the workqueue code. The patch also changes
"down_interruptible" to "down" in dlfb_free_urb_list, so that we will
clean up the driver properly even if a signal arrives.
With this patch, the performance of udlfb no longer degrades.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
[b.zolnierkie: fix immediatelly -> immediately typo]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"There is nothing really major here, few small fixes, some cleanups and
dead drivers removal:
- mark omapfb drivers as orphans in MAINTAINERS file (Tomi Valkeinen)
- add missing module license tags to omap/omapfb driver (Arnd
Bergmann)
- add missing GPIOLIB dependendy to omap2/omapfb driver (Arnd
Bergmann)
- convert savagefb, aty128fb & radeonfb drivers to use msleep & co.
(Jia-Ju Bai)
- allow COMPILE_TEST build for viafb driver (media part was reviewed
by media subsystem Maintainer)
- remove unused MERAM support from sh_mobile_lcdcfb and shmob-drm
drivers (drm parts were acked by shmob-drm driver Maintainer)
- remove unused auo_k190xfb drivers
- misc cleanups (Souptick Joarder, Wolfram Sang, Markus Elfring, Andy
Shevchenko, Colin Ian King)"
* tag 'fbdev-v4.18' of git://github.com/bzolnier/linux: (26 commits)
fb_omap2: add gpiolib dependency
video/omap: add module license tags
MAINTAINERS: make omapfb orphan
video: fbdev: pxafb: match_string() conversion fixup
video: fbdev: nvidia: fix spelling mistake: "scaleing" -> "scaling"
video: fbdev: fix spelling mistake: "frambuffer" -> "framebuffer"
video: fbdev: pxafb: Convert to use match_string() helper
video: fbdev: via: allow COMPILE_TEST build
video: fbdev: remove unused sh_mobile_meram driver
drm: shmobile: remove unused MERAM support
video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support
video: fbdev: remove unused auo_k190xfb drivers
video: omap: Improve a size determination in omapfb_do_probe()
video: sm501fb: Improve a size determination in sm501fb_probe()
video: fbdev-MMP: Improve a size determination in path_init()
video: fbdev-MMP: Delete an error message for a failed memory allocation in two functions
video: auo_k190x: Delete an error message for a failed memory allocation in auok190x_common_probe()
video: sh_mobile_lcdcfb: Delete an error message for a failed memory allocation in two functions
video: sh_mobile_meram: Delete an error message for a failed memory allocation in sh_mobile_meram_probe()
video: fbdev: sh_mobile_meram: Drop SUPERH platform dependency
...
auo_k1900fb and auo_k1901fb drivers have been introduced six
years ago by following commits:
commit 2c8304d312 ("video: auo_k190x: add code shared by controller drivers")
commit 96b1d500e0 ("video: auo_k190x: add driver for AUO-K1900 variant")
commit 53027cdf2a ("video: auo_k190x: add driver for AUO-K1901 variant")
They never had any in-kernel user so just remove them (since
they are platform drivers they need corresponding platform
devices to be registered by kernel and it has never happened).
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Just checking for ifdefs cause build issues as reported by
kernel test:
config: openrisc-allmodconfig (attached as .config)
compiler: or1k-linux-gcc (GCC) 6.0.0 20160327 (experimental)
All errors (new ones prefixed by >>):
drivers/video/fbdev/omap2/omapfb/omapfb-main.c: In function 'omapfb_init_connections':
>> drivers/video/fbdev/omap2/omapfb/omapfb-main.c:2396:8: error: implicit declaration of function 'omapdss_find_mgr_from_display' [-Werror=implicit-function-declaration]
mgr = omapdss_find_mgr_from_display(def_dssdev);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/video/fbdev/omap2/omapfb/omapfb-main.c:2396:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
mgr = omapdss_find_mgr_from_display(def_dssdev);
^
drivers/video/fbdev/omap2/omapfb/omapfb-main.c: In function 'omapfb_find_default_display':
>> drivers/video/fbdev/omap2/omapfb/omapfb-main.c:2430:13: error: implicit declaration of function 'omapdss_get_default_display_name' [-Werror=implicit-function-declaration]
def_name = omapdss_get_default_display_name();
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/video/fbdev/omap2/omapfb/omapfb-main.c:2430:11: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
def_name = omapdss_get_default_display_name();
^
So, use IS_ENABLED() instead.
Fixes: 771f7be87f ("media: omapfb: omapfb_dss.h: add stubs to build with COMPILE_TEST && DRM_OMAP")
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: tomi.valkeinen@ti.com
Cc: linux-omap@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add stubs for omapfb_dss.h, in the case it is included by
some driver when CONFIG_FB_OMAP2 is not defined, with can
happen on ARM when DRM_OMAP is not 'n'.
That allows building such driver(s) with COMPILE_TEST.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Since introduction of of_display_timings_exist() function in commit
cc3f414cf2 ("video: add of helper for display timings/videomode") it
didn't attract any users, and the function has no potential, because
of_get_display_timings() covers its functionality and does more.
Drop the unused exported function from the kernel.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"There is nothing really major here:
- fix display-timings lookup in the Device Tree in atmel_lcdfb driver
(Johan Hovold)
- fix video mode and line_length to be set correctly in vfb driver
(Pieter "PoroCYon" Sluys)
- fix returning nonsensical values to the user-space on GIO_FONTX
ioctl when using dummy console (Nicolas Pitre)
- add missing license tag to mmpfb driver (Arnd Bergmann)
- convert radeonfb and pxa3xx_gcu drivers to use ktime_get[_ts64]()
instead of the deprecated do_gettimeofday() (Arnd Bergmann)
- switch udlfb driver from using the pr_*() logging functions to the
dev_*() ones + related cleanups (Ladislav Michl)
- use __raw I/O accessors also on arm64 (Ji Zhang)
- fix Kconfig help text for intelfb driver (Randy Dunlap)
- do not duplicate features data in omapfb driver (Ladislav Michl)
- misc cleanups (Colin Ian King, Markus Elfring, Rasmus Villemoes,
Vasyl Gomonovych, Himanshu Jha, Michael Trimarchi)"
* tag 'fbdev-v4.16' of git://github.com/bzolnier/linux: (25 commits)
video: udlfb: Switch from the pr_*() to the dev_*() logging functions
video: udlfb: Constify read only data
video: fbdev/mmp: add MODULE_LICENSE
console/dummy: leave .con_font_get set to NULL
fbdev: mxsfb: use framebuffer_alloc in the correct way
video: udlfb: Do not name private data 'dev'
video: udlfb: Remove noisy warnings
video: udlfb: Remove redundant gdev variable
video: udlfb: Remove unnecessary local variable
fbdev: auo_k190x: Use zeroing memory allocator instead of allocator/memset
vfb: fix video mode and line_length being set when loaded
fbdev: arm64 use __raw I/O memory api
omapfb: dss: Do not duplicate features data
video: fbdev: omap2: Use PTR_ERR_OR_ZERO()
fbdev: au1200fb: delete duplicate header contents
fbdev: pxa3xx: use ktime_get_ts64 for time stamps
fbdev: radeon: use ktime_get() for HZ calibration
video: smscufx: Improve a size determination in two functions
video: udlfb: Delete an unnecessary return statement in two functions
video: udlfb: Improve a size determination in dlfb_alloc_urb_list()
...
Variable 'dev' is usually used for 'struct device'. Therefore
rename driver private data to dlfb to avoid confusion once
driver will be using dev_*() logging functions.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Cc: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
drm/imx: format modifier support
- Add tiled prefetch support to PRE
- Add format modifier support to PRG and imx-drm-core
- Use runtime PM to control PRG clock
- Allow building ipu-v3 under COMPILE_TEST
* tag 'imx-drm-next-2018-01-02' of git://git.pengutronix.de/git/pza/linux:
gpu: ipu-v3: allow to build with COMPILE_TEST
drm/imx: advertise supported plane format modifiers
drm/imx: add FB modifier support
gpu: ipu-v3: prg: add modifier support
gpu: ipu-v3: pre: add tiled prefetch support
gpu: ipu-v3: prg: switch to runtime PM
The DECON headers contain only defines for registers. There are no
other drivers using them so this should be put locally to the Exynos DRM
driver. Keeping headers local helps managing the code.
Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Allow to pass through the modifier to the PRE unit and extend the
format check with the supported modifiers.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"There is nothing really major here (though removal of the dead igafb
driver stands out in diffstat).
Summary:
- convert timers to use timer_setup() (Kees Cook, Thierry Reding)
- fix panels support on iMX boards in mxsfb driver (Stefan Agner)
- fix timeout on EDID read in udlfb driver (Ladislav Michl)
- add missing modes to fix out of bounds access in controlfb driver
(Geert Uytterhoeven)
- update initialisation paths in sa1100fb driver to be more robust
(Russell King)
- fix error handling path of ->probe method in au1200fb driver
(Christophe JAILLET)
- fix handling of cases when either panel or crt is defined in
sm501fb driver (Sudip Mukherjee, Colin Ian King)
- add ability to the Goldfish FB driver to be recognized by OS via DT
(Aleksandar Markovic)
- structures constifications (Bhumika Goyal)
- misc fixes (Allen Pais, Gustavo A. R. Silva, Dan Carpenter)
- misc cleanups (Colin Ian King, Himanshu Jha, Markus Elfring)
- remove dead igafb driver"
* tag 'fbdev-v4.15' of git://github.com/bzolnier/linux: (42 commits)
OMAPFB: prevent buffer underflow in omapfb_parse_vram_param()
video: fbdev: sm501fb: fix potential null pointer dereference on fbi
fbcon: Initialize ops->info early
video: fbdev: Convert timers to use timer_setup()
video: fbdev: pxa3xx_gcu: Convert timers to use timer_setup()
fbdev: controlfb: Add missing modes to fix out of bounds access
video: fbdev: sis_main: mark expected switch fall-throughs
video: fbdev: cirrusfb: mark expected switch fall-throughs
video: fbdev: aty: radeon_pm: mark expected switch fall-throughs
video: fbdev: sm501fb: mark expected switch fall-through in sm501fb_blank_crt
video: fbdev: intelfb: remove redundant variables
video/fbdev/dnfb: Use common error handling code in dnfb_probe()
sm501fb: suspend and resume fb if it exists
sm501fb: unregister framebuffer only if registered
sm501fb: deallocate colormap only if allocated
video: goldfishfb: Add support for device tree bindings
Documentation: Add device tree binding for Goldfish FB driver
video: udlfb: Fix read EDID timeout
video: fbdev: remove dead igafb driver
video: fbdev: mxsfb: fix pixelclock polarity
...
igafb driver hasn't compiled since at least kernel v2.6.34 as
commit 6016a363f6 ("of: unify phandle name in struct device_node")
missed updating igafb.c to use dp->phandle instead of dp->node.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
imx-drm: cleanups and YUV 4:2:0 memory read/write reduction support
- Remove counter load enable form PRE, which has no effect.
- Add support for setting the double read/write reduction flag in channel
parameter memory. This can be used to save some memory bandwidth when
capturing in YUV 4:2:0 chroma subsampled formats.
- Allocate DMA channel structures as needed, most of the 64 channels are
unused or even reserved.
- Remove unused interrupt busy waiting routine.
- Set VDIC field order for both AUTO and MAN inputs simultaneously as
both can't be active at the same time.
* tag 'imx-drm-next-2017-06-08' of git://git.pengutronix.de/git/pza/linux:
gpu: ipu-v3: vdic: include AUTO field order bit in ipu_vdi_set_field_order
gpu: ipu-v3: remove interrupt busy waiting routine
gpu: ipu-v3: allocate ipuv3_channels as needed
gpu: ipu-v3: Add support for double read/write reduction
gpu: ipu-v3: prg: remove counter load enable
Allow to skip writing odd chroma rows by setting the RDRW bit for
4:2:0 chroma subsampled formats for any IDMAC write channel. This
also allows to skip reading odd rows for the VDIC read channel.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
There is no point in protecting only particular windows during update.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Regularly, when a new header is created in include/uapi/, the developer
forgets to add it in the corresponding Kbuild file. This error is usually
detected after the release is out.
In fact, all headers under uapi directories should be exported, thus it's
useless to have an exhaustive list.
After this patch, the following files, which were not exported, are now
exported (with make headers_install_all):
asm-arc/kvm_para.h
asm-arc/ucontext.h
asm-blackfin/shmparam.h
asm-blackfin/ucontext.h
asm-c6x/shmparam.h
asm-c6x/ucontext.h
asm-cris/kvm_para.h
asm-h8300/shmparam.h
asm-h8300/ucontext.h
asm-hexagon/shmparam.h
asm-m32r/kvm_para.h
asm-m68k/kvm_para.h
asm-m68k/shmparam.h
asm-metag/kvm_para.h
asm-metag/shmparam.h
asm-metag/ucontext.h
asm-mips/hwcap.h
asm-mips/reg.h
asm-mips/ucontext.h
asm-nios2/kvm_para.h
asm-nios2/ucontext.h
asm-openrisc/shmparam.h
asm-parisc/kvm_para.h
asm-powerpc/perf_regs.h
asm-sh/kvm_para.h
asm-sh/ucontext.h
asm-tile/shmparam.h
asm-unicore32/shmparam.h
asm-unicore32/ucontext.h
asm-x86/hwcap2.h
asm-xtensa/kvm_para.h
drm/armada_drm.h
drm/etnaviv_drm.h
drm/vgem_drm.h
linux/aspeed-lpc-ctrl.h
linux/auto_dev-ioctl.h
linux/bcache.h
linux/btrfs_tree.h
linux/can/vxcan.h
linux/cifs/cifs_mount.h
linux/coresight-stm.h
linux/cryptouser.h
linux/fsmap.h
linux/genwqe/genwqe_card.h
linux/hash_info.h
linux/kcm.h
linux/kcov.h
linux/kfd_ioctl.h
linux/lightnvm.h
linux/module.h
linux/nbd-netlink.h
linux/nilfs2_api.h
linux/nilfs2_ondisk.h
linux/nsfs.h
linux/pr.h
linux/qrtr.h
linux/rpmsg.h
linux/sched/types.h
linux/sed-opal.h
linux/smc.h
linux/smc_diag.h
linux/stm.h
linux/switchtec_ioctl.h
linux/vfio_ccw.h
linux/wil6210_uapi.h
rdma/bnxt_re-abi.h
Note that I have removed from this list the files which are generated in every
exported directories (like .install or .install.cmd).
Thanks to Julien Floret <julien.floret@6wind.com> for the tip to get all
subdirs with a pure makefile command.
For the record, note that exported files for asm directories are a mix of
files listed by:
- include/uapi/asm-generic/Kbuild.asm;
- arch/<arch>/include/uapi/asm/Kbuild;
- arch/<arch>/include/asm/Kbuild.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Mark Salter <msalter@redhat.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Pull drm u pdates from Dave Airlie:
"This is the main drm pull request for v4.12. Apart from two fixes
pulls, everything should have been in drm-next for at least 2 weeks.
The biggest thing in here is AMD released the public headers for their
upcoming VEGA GPUs. These as always are quite a sizeable chunk of
header files. They've also added initial non-display support for those
GPUs, though they aren't available in production yet.
Otherwise it's pretty much normal.
New bridge drivers:
- megachips-stdpxxxx-ge-b850v3-fw LVDS->DP++
- generic LVDS bridge support.
Core:
- Displayport link train failure reporting to userspace
- debugfs interface cleaned up
- subsystem TODO in kerneldoc now
- Extended fbdev support (flipping and vblank wait)
- drm_platform removed
- EDP CRC support in helper
- HF-VSDB SCDC support in EDID parser
- Lots of code cleanups and header extraction
- Thunderbolt external GPU awareness
- Atomic helper improvements
- Documentation improvements
panel:
- Sitronix and Samsung new panel support
amdgpu:
- Preliminary vega10 support
- Multi-level page table support
- GPU sensor support for userspace
- PRT support for sparse buffers
- SR-IOV improvements
- Non-contig VRAM CPU mapping
i915:
- Atomic modesetting enabled by default on Gen5+
- LSPCON improvements
- Atomic state handling for cdclk
- GPU reset improvements
- In-kernel unit tests
- Geminilake improvements and color manager support
- Designware i2c fixes
- vblank evasion improvements
- Hotplug safe connector iterators
- GVT scheduler QoS support
- GVT Kabylake support
nouveau:
- Acceleration support for Pascal (GP10x).
- Rearchitecture of code handling proprietary signed firmware
- Fix GTX 970 with odd MMU configuration
- GP10B support
- GP107 acceleration support
vmwgfx:
- Atomic modesetting support for vmwgfx
omapdrm:
- Support for render nodes
- Refactor omapdss code
- Fix some probe ordering issues
- Fix too dark RGB565 rendering
sunxi:
- prelim rework for multiple pipes.
mali-dp:
- Color management support
- Plane scaling
- Power management improvements
imx-drm:
- Prefetch Resolve Engine/Gasket on i.MX6QP
- Deferred plane disabling
- Separate alpha support
mediatek:
- Mediatek SoC MT2701 support
rcar-du:
- Gen3 HDMI support
msm:
- 4k support for newer chips
- OPP bindings for gpu
- prep work for per-process pagetables
vc4:
- HDMI audio support
- fixes
qxl:
- minor fixes.
dw-hdmi:
- PHY improvements
- CSC fixes
- Amlogic GX SoC support"
* tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux: (1778 commits)
drm/nouveau/fb/gf100-: Fix 32 bit wraparound in new ram detection
drm/nouveau/secboot/gm20b: fix the error return code in gm20b_secboot_tegra_read_wpr()
drm/nouveau/kms: Increase max retries in scanout position queries.
drm/nouveau/bios/bitP: check that table is long enough for optional pointers
drm/nouveau/fifo/nv40: no ctxsw for pre-nv44 mpeg engine
drm: mali-dp: use div_u64 for expensive 64-bit divisions
drm/i915: Confirm the request is still active before adding it to the await
drm/i915: Avoid busy-spinning on VLV_GLTC_PW_STATUS mmio
drm/i915/selftests: Allocate inode/file dynamically
drm/i915: Fix system hang with EI UP masked on Haswell
drm/i915: checking for NULL instead of IS_ERR() in mock selftests
drm/i915: Perform link quality check unconditionally during long pulse
drm/i915: Fix use after free in lpe_audio_platdev_destroy()
drm/i915: Use the right mapping_gfp_mask for final shmem allocation
drm/i915: Make legacy cursor updates more unsynced
drm/i915: Apply a cond_resched() to the saturated signaler
drm/i915: Park the signaler before sleeping
drm: mali-dp: Check the mclk rate and allow up/down scaling
drm: mali-dp: Enable image enhancement when scaling
drm: mali-dp: Add plane upscaling support
...
Pull crypto updates from Herbert Xu:
"Here is the crypto update for 4.12:
API:
- Add batch registration for acomp/scomp
- Change acomp testing to non-unique compressed result
- Extend algorithm name limit to 128 bytes
- Require setkey before accept(2) in algif_aead
Algorithms:
- Add support for deflate rfc1950 (zlib)
Drivers:
- Add accelerated crct10dif for powerpc
- Add crc32 in stm32
- Add sha384/sha512 in ccp
- Add 3des/gcm(aes) for v5 devices in ccp
- Add Queue Interface (QI) backend support in caam
- Add new Exynos RNG driver
- Add ThunderX ZIP driver
- Add driver for hardware random generator on MT7623 SoC"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (101 commits)
crypto: stm32 - Fix OF module alias information
crypto: algif_aead - Require setkey before accept(2)
crypto: scomp - add support for deflate rfc1950 (zlib)
crypto: scomp - allow registration of multiple scomps
crypto: ccp - Change ISR handler method for a v5 CCP
crypto: ccp - Change ISR handler method for a v3 CCP
crypto: crypto4xx - rename ce_ring_contol to ce_ring_control
crypto: testmgr - Allow ecb(cipher_null) in FIPS mode
Revert "crypto: arm64/sha - Add constant operand modifier to ASM_EXPORT"
crypto: ccp - Disable interrupts early on unload
crypto: ccp - Use only the relevant interrupt bits
hwrng: mtk - Add driver for hardware random generator on MT7623 SoC
dt-bindings: hwrng: Add Mediatek hardware random generator bindings
crypto: crct10dif-vpmsum - Fix missing preempt_disable()
crypto: testmgr - replace compression known answer test
crypto: acomp - allow registration of multiple acomps
hwrng: n2 - Use devm_kcalloc() in n2rng_probe()
crypto: chcr - Fix error handling related to 'chcr_alloc_shash'
padata: get_next is never NULL
crypto: exynos - Add new Exynos RNG driver
...
Few parts of kernel define their own macro for aligning down so provide
a common define for this, with the same usage and assumptions as existing
ALIGN.
Convert also three existing implementations to this one.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
DECON in case of video mode generates interrupt by default at start
of vertical back porch. As this interrupt is used to generate VBLANK
events more optimal point is start of vertical front porch.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Current implementation of event handling assumes that vblank interrupt is
always called at the right time. It is not true, it can be delayed due to
various reasons. As a result different races can happen. The patch fixes
the issue by using hardware frame counter present in DECON to serialize
vblank and commit completion events.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This adds support for the i.MX6 QUadPlus PRG unit. It glues together the
IPU and the PRE units.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
v4: add missing ipu_soc->prg_priv
The IPUv3 can read 8-bit alpha values from a separate IDMAC channel driven
by the Alpha Transparency Controller (ATC) for the graphics IDMAC channels.
This allows to reduce memory bandwidth via a conditional read mechanism or
to support planar YUV formats with alpha transparency.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
When disabling the foreground DP channel during a modeset, the DC is
already disabled without waiting for end of frame. There is no reason
to wait for a frame boundary before updating the DP registers in that
case.
Add support to apply updates immediately. No functional changes, yet.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
In case of interlace mode irq is generated for odd and even fields, but
vblank should be signaled only for the last emitted field.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Some registers should be programmed differently in interlace mode.
Additionally IP does not signal stop state properly in interlaced
mode, so warning has been removed.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
imx-drm plane update cleanup, YUV formats
- request modeset if plane offsets changed, only the plane base
address can be changed without disabling the plane IDMAC channel.
- cleanup of plane atomic_update
- remove unused ipu_cpmem_set_yuv_planar function
- support YUV 4:4:4, 4:2:2, NV12 and NV16 plane formats
- not only mask interrupts during irq init, also clear them
- remove a legacy check from imx-ldb
- add support to set the CSI downsizing bits
- silence an obnoxious warning during modeset
* tag 'imx-drm-next-2016-11-10' of git://git.pengutronix.de/git/pza/linux:
gpu: ipu-di: silence videomode logspam
gpu: ipu-v3: add ipu_csi_set_downsize
drm/imx: imx-ldb: remove unnecessary double disable check
gpu: ipu-v3: initially clear all interrupts
drm/imx: ipuv3-plane: add support for YUV 4:2:2 and 4:4:4, NV12, and NV16 formats
gpu: ipu-v3: add YUV 4:4:4 support
gpu: ipu-cpmem: remove unused ipu_cpmem_set_yuv_planar function
drm/imx: ipuv3-plane: let drm_plane_state_to_ubo/vbo handle chroma subsampling other than 4:2:0
drm/imx: ipuv3-plane: merge ipu_plane_atomic_set_base into atomic_update
drm/imx: ipuv3-plane: request modeset if plane offsets changed
