9c20bfd64d3f79d929a37d70e8aaaad5405d4d6e
654 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
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b969cbb180 |
Merge 4.19.268 into android-4.19-stable
Changes in 4.19.268
wifi: mac80211_hwsim: fix debugfs attribute ps with rc table support
audit: fix undefined behavior in bit shift for AUDIT_BIT
wifi: mac80211: Fix ack frame idr leak when mesh has no route
spi: stm32: fix stm32_spi_prepare_mbr() that halves spi clk for every run
drm: panel-orientation-quirks: Add quirk for Acer Switch V 10 (SW5-017)
RISC-V: vdso: Do not add missing symbols to version section in linker script
MIPS: pic32: treat port as signed integer
af_key: Fix send_acquire race with pfkey_register
ARM: dts: am335x-pcm-953: Define fixed regulators in root node
ASoC: sgtl5000: Reset the CHIP_CLK_CTRL reg on remove
bus: sunxi-rsb: Support atomic transfers
ARM: dts: at91: sam9g20ek: enable udc vbus gpio pinctrl
nfc/nci: fix race with opening and closing
net: pch_gbe: fix potential memleak in pch_gbe_tx_queue()
9p/fd: fix issue of list_del corruption in p9_fd_cancel()
ARM: mxs: fix memory leak in mxs_machine_init()
net/mlx4: Check retval of mlx4_bitmap_init
net/qla3xxx: fix potential memleak in ql3xxx_send()
net: pch_gbe: fix pci device refcount leak while module exiting
Drivers: hv: vmbus: fix double free in the error path of vmbus_add_channel_work()
Drivers: hv: vmbus: fix possible memory leak in vmbus_device_register()
net/mlx5: Fix FW tracer timestamp calculation
tipc: set con sock in tipc_conn_alloc
tipc: add an extra conn_get in tipc_conn_alloc
tipc: check skb_linearize() return value in tipc_disc_rcv()
xfrm: Fix ignored return value in xfrm6_init()
NFC: nci: fix memory leak in nci_rx_data_packet()
bnx2x: fix pci device refcount leak in bnx2x_vf_is_pcie_pending()
dccp/tcp: Reset saddr on failure after inet6?_hash_connect().
s390/dasd: fix no record found for raw_track_access
nfc: st-nci: fix incorrect validating logic in EVT_TRANSACTION
nfc: st-nci: fix memory leaks in EVT_TRANSACTION
net: thunderx: Fix the ACPI memory leak
s390/crashdump: fix TOD programmable field size
arm64: dts: rockchip: lower rk3399-puma-haikou SD controller clock frequency
iio: light: apds9960: fix wrong register for gesture gain
iio: core: Fix entry not deleted when iio_register_sw_trigger_type() fails
nios2: add FORCE for vmlinuz.gz
iio: ms5611: Simplify IO callback parameters
iio: pressure: ms5611: fixed value compensation bug
ceph: do not update snapshot context when there is no new snapshot
ceph: avoid putting the realm twice when decoding snaps fails
nilfs2: fix nilfs_sufile_mark_dirty() not set segment usage as dirty
Input: synaptics - switch touchpad on HP Laptop 15-da3001TU to RMI mode
serial: 8250: 8250_omap: Avoid RS485 RTS glitch on ->set_termios()
xen/platform-pci: add missing free_irq() in error path
platform/x86: asus-wmi: add missing pci_dev_put() in asus_wmi_set_xusb2pr()
platform/x86: acer-wmi: Enable SW_TABLET_MODE on Switch V 10 (SW5-017)
platform/x86: hp-wmi: Ignore Smart Experience App event
tcp: configurable source port perturb table size
net: usb: qmi_wwan: add Telit 0x103a composition
dm integrity: flush the journal on suspend
btrfs: free btrfs_path before copying root refs to userspace
btrfs: free btrfs_path before copying fspath to userspace
btrfs: free btrfs_path before copying subvol info to userspace
drm/amd/dc/dce120: Fix audio register mapping, stop triggering KASAN
drm/amdgpu: always register an MMU notifier for userptr
btrfs: free btrfs_path before copying inodes to userspace
spi: spi-imx: Fix spi_bus_clk if requested clock is higher than input clock
proc: avoid integer type confusion in get_proc_long
proc: proc_skip_spaces() shouldn't think it is working on C strings
v4l2: don't fall back to follow_pfn() if pin_user_pages_fast() fails
Revert "x86/speculation: Change FILL_RETURN_BUFFER to work with objtool"
iio: health: afe4403: Fix oob read in afe4403_read_raw
iio: health:
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Lee Jones
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73b68e326e |
Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled
[ Upstream commit 152fe65f300e1819d59b80477d3e0999b4d5d7d2 ] When enabled, KASAN enlarges function's stack-frames. Pushing quite a few over the current threshold. This can mainly be seen on 32-bit architectures where the present limit (when !GCC) is a lowly 1024-Bytes. Link: https://lkml.kernel.org/r/20221125120750.3537134-3-lee@kernel.org Signed-off-by: Lee Jones <lee@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@gmail.com> Cc: Harry Wentland <harry.wentland@amd.com> Cc: Leo Li <sunpeng.li@amd.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Tom Rix <trix@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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Helge Deller
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d8fafe2a8e |
parisc: Increase FRAME_WARN to 2048 bytes on parisc
[ Upstream commit 8d192bec534bd5b778135769a12e5f04580771f7 ] PA-RISC uses a much bigger frame size for functions than other architectures. So increase it to 2048 for 32- and 64-bit kernels. This fixes e.g. a warning in lib/xxhash.c. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Helge Deller <deller@gmx.de> Stable-dep-of: 152fe65f300e ("Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled") Signed-off-by: Sasha Levin <sashal@kernel.org> |
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Guenter Roeck
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854983fdfa |
xtensa: increase size of gcc stack frame check
[ Upstream commit 867050247e295cf20fce046a92a7e6491fcfe066 ] xtensa frame size is larger than the frame size for almost all other architectures. This results in more than 50 "the frame size of <n> is larger than 1024 bytes" errors when trying to build xtensa:allmodconfig. Increase frame size for xtensa to 1536 bytes to avoid compile errors due to frame size limits. Link: https://lkml.kernel.org/r/20210912025235.3514761-1-linux@roeck-us.net Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Max Filippov <jcmvbkbc@gmail.com> Cc: Chris Zankel <chris@zankel.net> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Stable-dep-of: 152fe65f300e ("Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled") Signed-off-by: Sasha Levin <sashal@kernel.org> |
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Helge Deller
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a17b619adb |
parisc: Increase size of gcc stack frame check
[ Upstream commit 55b70eed81cba1331773d4aaf5cba2bb07475cd8 ] parisc uses much bigger frames than other architectures, so increase the stack frame check value to avoid compiler warnings. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Helge Deller <deller@gmx.de> Stable-dep-of: 152fe65f300e ("Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled") Signed-off-by: Sasha Levin <sashal@kernel.org> |
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Steven Rostedt (Google)
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ef67a4a1de |
error-injection: Add prompt for function error injection
commit a4412fdd49dc011bcc2c0d81ac4cab7457092650 upstream.
The config to be able to inject error codes into any function annotated
with ALLOW_ERROR_INJECTION() is enabled when FUNCTION_ERROR_INJECTION is
enabled. But unfortunately, this is always enabled on x86 when KPROBES
is enabled, and there's no way to turn it off.
As kprobes is useful for observability of the kernel, it is useful to
have it enabled in production environments. But error injection should
be avoided. Add a prompt to the config to allow it to be disabled even
when kprobes is enabled, and get rid of the "def_bool y".
This is a kernel debug feature (it's in Kconfig.debug), and should have
never been something enabled by default.
Cc: stable@vger.kernel.org
Fixes:
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Greg Kroah-Hartman
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25e813ddc6 |
Merge 4.19.249 into android-4.19-stable
Changes in 4.19.249
9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"
drivers/char/random.c: constify poolinfo_table
drivers/char/random.c: remove unused stuct poolinfo::poolbits
drivers/char/random.c: make primary_crng static
random: only read from /dev/random after its pool has received 128 bits
random: move rand_initialize() earlier
random: document get_random_int() family
latent_entropy: avoid build error when plugin cflags are not set
random: fix soft lockup when trying to read from an uninitialized blocking pool
random: Support freezable kthreads in add_hwgenerator_randomness()
fdt: add support for rng-seed
random: Use wait_event_freezable() in add_hwgenerator_randomness()
char/random: Add a newline at the end of the file
Revert "hwrng: core - Freeze khwrng thread during suspend"
crypto: blake2s - generic C library implementation and selftest
lib/crypto: blake2s: move hmac construction into wireguard
lib/crypto: sha1: re-roll loops to reduce code size
random: Don't wake crng_init_wait when crng_init == 1
random: Add a urandom_read_nowait() for random APIs that don't warn
random: add GRND_INSECURE to return best-effort non-cryptographic bytes
random: ignore GRND_RANDOM in getentropy(2)
random: make /dev/random be almost like /dev/urandom
char/random: silence a lockdep splat with printk()
random: fix crash on multiple early calls to add_bootloader_randomness()
random: remove the blocking pool
random: delete code to pull data into pools
random: remove kernel.random.read_wakeup_threshold
random: remove unnecessary unlikely()
random: convert to ENTROPY_BITS for better code readability
random: Add and use pr_fmt()
random: fix typo in add_timer_randomness()
random: remove some dead code of poolinfo
random: split primary/secondary crng init paths
random: avoid warnings for !CONFIG_NUMA builds
x86: Remove arch_has_random, arch_has_random_seed
powerpc: Remove arch_has_random, arch_has_random_seed
s390: Remove arch_has_random, arch_has_random_seed
linux/random.h: Remove arch_has_random, arch_has_random_seed
linux/random.h: Use false with bool
linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
powerpc: Use bool in archrandom.h
random: add arch_get_random_*long_early()
random: avoid arch_get_random_seed_long() when collecting IRQ randomness
random: remove dead code left over from blocking pool
MAINTAINERS: co-maintain random.c
crypto: blake2s - include <linux/bug.h> instead of <asm/bug.h>
crypto: blake2s - adjust include guard naming
random: document add_hwgenerator_randomness() with other input functions
random: remove unused irq_flags argument from add_interrupt_randomness()
random: use BLAKE2s instead of SHA1 in extraction
random: do not sign extend bytes for rotation when mixing
random: do not re-init if crng_reseed completes before primary init
random: mix bootloader randomness into pool
random: harmonize "crng init done" messages
random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs
random: initialize ChaCha20 constants with correct endianness
random: early initialization of ChaCha constants
random: avoid superfluous call to RDRAND in CRNG extraction
random: don't reset crng_init_cnt on urandom_read()
random: fix typo in comments
random: cleanup poolinfo abstraction
random: cleanup integer types
random: remove incomplete last_data logic
random: remove unused extract_entropy() reserved argument
random: rather than entropy_store abstraction, use global
random: remove unused OUTPUT_POOL constants
random: de-duplicate INPUT_POOL constants
random: prepend remaining pool constants with POOL_
random: cleanup fractional entropy shift constants
random: access input_pool_data directly rather than through pointer
random: simplify arithmetic function flow in account()
random: continually use hwgenerator randomness
random: access primary_pool directly rather than through pointer
random: only call crng_finalize_init() for primary_crng
random: use computational hash for entropy extraction
random: simplify entropy debiting
random: use linear min-entropy accumulation crediting
random: always wake up entropy writers after extraction
random: make credit_entropy_bits() always safe
random: remove use_input_pool parameter from crng_reseed()
random: remove batched entropy locking
random: fix locking in crng_fast_load()
random: use RDSEED instead of RDRAND in entropy extraction
random: inline leaves of rand_initialize()
random: ensure early RDSEED goes through mixer on init
random: do not xor RDRAND when writing into /dev/random
random: absorb fast pool into input pool after fast load
random: use hash function for crng_slow_load()
random: remove outdated INT_MAX >> 6 check in urandom_read()
random: zero buffer after reading entropy from userspace
random: tie batched entropy generation to base_crng generation
random: remove ifdef'd out interrupt bench
random: remove unused tracepoints
random: add proper SPDX header
random: deobfuscate irq u32/u64 contributions
random: introduce drain_entropy() helper to declutter crng_reseed()
random: remove useless header comment
random: remove whitespace and reorder includes
random: group initialization wait functions
random: group entropy extraction functions
random: group entropy collection functions
random: group userspace read/write functions
random: group sysctl functions
random: rewrite header introductory comment
random: defer fast pool mixing to worker
random: do not take pool spinlock at boot
random: unify early init crng load accounting
random: check for crng_init == 0 in add_device_randomness()
random: pull add_hwgenerator_randomness() declaration into random.h
random: clear fast pool, crng, and batches in cpuhp bring up
random: round-robin registers as ulong, not u32
random: only wake up writers after zap if threshold was passed
random: cleanup UUID handling
random: unify cycles_t and jiffies usage and types
random: do crng pre-init loading in worker rather than irq
random: give sysctl_random_min_urandom_seed a more sensible value
random: don't let 644 read-only sysctls be written to
random: replace custom notifier chain with standard one
random: use SipHash as interrupt entropy accumulator
random: make consistent usage of crng_ready()
random: reseed more often immediately after booting
random: check for signal and try earlier when generating entropy
random: skip fast_init if hwrng provides large chunk of entropy
random: treat bootloader trust toggle the same way as cpu trust toggle
random: re-add removed comment about get_random_{u32,u64} reseeding
random: mix build-time latent entropy into pool at init
random: do not split fast init input in add_hwgenerator_randomness()
random: do not allow user to keep crng key around on stack
random: check for signal_pending() outside of need_resched() check
random: check for signals every PAGE_SIZE chunk of /dev/[u]random
random: make random_get_entropy() return an unsigned long
random: document crng_fast_key_erasure() destination possibility
random: fix sysctl documentation nits
init: call time_init() before rand_initialize()
ia64: define get_cycles macro for arch-override
s390: define get_cycles macro for arch-override
parisc: define get_cycles macro for arch-override
alpha: define get_cycles macro for arch-override
powerpc: define get_cycles macro for arch-override
timekeeping: Add raw clock fallback for random_get_entropy()
m68k: use fallback for random_get_entropy() instead of zero
mips: use fallback for random_get_entropy() instead of just c0 random
arm: use fallback for random_get_entropy() instead of zero
nios2: use fallback for random_get_entropy() instead of zero
x86/tsc: Use fallback for random_get_entropy() instead of zero
um: use fallback for random_get_entropy() instead of zero
sparc: use fallback for random_get_entropy() instead of zero
xtensa: use fallback for random_get_entropy() instead of zero
random: insist on random_get_entropy() existing in order to simplify
random: do not use batches when !crng_ready()
random: do not pretend to handle premature next security model
random: order timer entropy functions below interrupt functions
random: do not use input pool from hard IRQs
random: help compiler out with fast_mix() by using simpler arguments
siphash: use one source of truth for siphash permutations
random: use symbolic constants for crng_init states
random: avoid initializing twice in credit race
random: remove ratelimiting for in-kernel unseeded randomness
random: use proper jiffies comparison macro
random: handle latent entropy and command line from random_init()
random: credit architectural init the exact amount
random: use static branch for crng_ready()
random: remove extern from functions in header
random: use proper return types on get_random_{int,long}_wait()
random: move initialization functions out of hot pages
random: move randomize_page() into mm where it belongs
random: convert to using fops->write_iter()
random: wire up fops->splice_{read,write}_iter()
random: check for signals after page of pool writes
Revert "random: use static branch for crng_ready()"
crypto: drbg - add FIPS 140-2 CTRNG for noise source
crypto: drbg - always seeded with SP800-90B compliant noise source
crypto: drbg - prepare for more fine-grained tracking of seeding state
crypto: drbg - track whether DRBG was seeded with !rng_is_initialized()
crypto: drbg - move dynamic ->reseed_threshold adjustments to __drbg_seed()
crypto: drbg - always try to free Jitter RNG instance
crypto: drbg - make reseeding from get_random_bytes() synchronous
random: avoid checking crng_ready() twice in random_init()
random: mark bootloader randomness code as __init
random: account for arch randomness in bits
powerpc/kasan: Silence KASAN warnings in __get_wchan()
ASoC: cs42l52: Fix TLV scales for mixer controls
ASoC: cs53l30: Correct number of volume levels on SX controls
ASoC: cs42l52: Correct TLV for Bypass Volume
ASoC: cs42l56: Correct typo in minimum level for SX volume controls
ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()
ASoC: wm8962: Fix suspend while playing music
ASoC: es8328: Fix event generation for deemphasis control
ASoC: wm_adsp: Fix event generation for wm_adsp_fw_put()
scsi: vmw_pvscsi: Expand vcpuHint to 16 bits
scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology
scsi: ipr: Fix missing/incorrect resource cleanup in error case
scsi: pmcraid: Fix missing resource cleanup in error case
virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed
nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred
ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
net: ethernet: mtk_eth_soc: fix misuse of mem alloc interface netdev[napi]_alloc_frag
random: credit cpu and bootloader seeds by default
pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE
i40e: Fix adding ADQ filter to TC0
i40e: Fix call trace in setup_tx_descriptors
tty: goldfish: Fix free_irq() on remove
misc: atmel-ssc: Fix IRQ check in ssc_probe
mlxsw: spectrum_cnt: Reorder counter pools
net: bgmac: Fix an erroneous kfree() in bgmac_remove()
arm64: ftrace: fix branch range checks
certs/blacklist_hashes.c: fix const confusion in certs blacklist
faddr2line: Fix overlapping text section failures, the sequel
irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions
comedi: vmk80xx: fix expression for tx buffer size
USB: serial: option: add support for Cinterion MV31 with new baseline
USB: serial: io_ti: add Agilent E5805A support
usb: dwc2: Fix memory leak in dwc2_hcd_init
usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe
serial: 8250: Store to lsr_save_flags after lsr read
ext4: fix bug_on ext4_mb_use_inode_pa
ext4: make variable "count" signed
ext4: add reserved GDT blocks check
virtio-pci: Remove wrong address verification in vp_del_vqs()
net: openvswitch: fix misuse of the cached connection on tuple changes
net: openvswitch: fix leak of nested actions
RISC-V: fix barrier() use in <vdso/processor.h>
powerpc/mm: Switch obsolete dssall to .long
s390/mm: use non-quiescing sske for KVM switch to keyed guest
usb: gadget: u_ether: fix regression in setting fixed MAC address
xprtrdma: fix incorrect header size calculations
tcp: add some entropy in __inet_hash_connect()
tcp: use different parts of the port_offset for index and offset
tcp: add small random increments to the source port
tcp: dynamically allocate the perturb table used by source ports
tcp: increase source port perturb table to 2^16
tcp: drop the hash_32() part from the index calculation
Revert "hwmon: Make chip parameter for with_info API mandatory"
Linux 4.19.249
Merge resolution notes:
- Dropped the changes that added an LTS-specific backport of the
blake2s library, since this branch already has a newer version of
the blake2s library.
- Added CHACHA20_KEY_SIZE and CHACHA20_BLOCK_SIZE constants to
chacha.h, to minimize changes from the 4.19 LTS version of random.c
- Retain a fix to the rng-seed support in drivers/of/fdt.c that this
branch and 4.19.250 have, but 4.19.249 doesn't have.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: If9d9e3168f0976f61ae1ab9b36c063558a7f6ebf
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Jason A. Donenfeld
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98209dfe60 |
random: remove ratelimiting for in-kernel unseeded randomness
commit cc1e127bfa95b5fb2f9307e7168bf8b2b45b4c5e upstream. The CONFIG_WARN_ALL_UNSEEDED_RANDOM debug option controls whether the kernel warns about all unseeded randomness or just the first instance. There's some complicated rate limiting and comparison to the previous caller, such that even with CONFIG_WARN_ALL_UNSEEDED_RANDOM enabled, developers still don't see all the messages or even an accurate count of how many were missed. This is the result of basically parallel mechanisms aimed at accomplishing more or less the same thing, added at different points in random.c history, which sort of compete with the first-instance-only limiting we have now. It turns out, however, that nobody cares about the first unseeded randomness instance of in-kernel users. The same first user has been there for ages now, and nobody is doing anything about it. It isn't even clear that anybody _can_ do anything about it. Most places that can do something about it have switched over to using get_random_bytes_wait() or wait_for_random_bytes(), which is the right thing to do, but there is still much code that needs randomness sometimes during init, and as a geeneral rule, if you're not using one of the _wait functions or the readiness notifier callback, you're bound to be doing it wrong just based on that fact alone. So warning about this same first user that can't easily change is simply not an effective mechanism for anything at all. Users can't do anything about it, as the Kconfig text points out -- the problem isn't in userspace code -- and kernel developers don't or more often can't react to it. Instead, show the warning for all instances when CONFIG_WARN_ALL_UNSEEDED_RANDOM is set, so that developers can debug things need be, or if it isn't set, don't show a warning at all. At the same time, CONFIG_WARN_ALL_UNSEEDED_RANDOM now implies setting random.ratelimit_disable=1 on by default, since if you care about one you probably care about the other too. And we can clean up usage around the related urandom_warning ratelimiter as well (whose behavior isn't changing), so that it properly counts missed messages after the 10 message threshold is reached. Cc: Theodore Ts'o <tytso@mit.edu> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Greg Kroah-Hartman
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0a598109d3 |
Revert "ARM: 8800/1: use choice for kernel unwinders"
This reverts commit |
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Greg Kroah-Hartman
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b14211564d |
Merge 4.19.222 into android-4.19-stable
Changes in 4.19.222 stable: clamp SUBLEVEL in 4.19 nfc: fix segfault in nfc_genl_dump_devices_done drm/msm/dsi: set default num_data_lanes net/mlx4_en: Update reported link modes for 1/10G parisc/agp: Annotate parisc agp init functions with __init i2c: rk3x: Handle a spurious start completion interrupt flag net: netlink: af_netlink: Prevent empty skb by adding a check on len. tracing: Fix a kmemleak false positive in tracing_map hwmon: (dell-smm) Fix warning on /proc/i8k creation error mac80211: send ADDBA requests using the tid/queue of the aggregation session recordmcount.pl: look for jgnop instruction as well as bcrl on s390 dm btree remove: fix use after free in rebalance_children() audit: improve robustness of the audit queue handling nfsd: fix use-after-free due to delegation race x86: Make ARCH_USE_MEMREMAP_PROT a generic Kconfig symbol x86/sme: Explicitly map new EFI memmap table as encrypted mac80211: track only QoS data frames for admission control ARM: socfpga: dts: fix qspi node compatible sch_cake: do not call cake_destroy() from cake_init() dmaengine: st_fdma: fix MODULE_ALIAS rds: memory leak in __rds_conn_create() soc/tegra: fuse: Fix bitwise vs. logical OR warning igb: Fix removal of unicast MAC filters of VFs igbvf: fix double free in `igbvf_probe` ixgbe: set X550 MDIO speed before talking to PHY netdevsim: Zero-initialize memory for new map's value in function nsim_bpf_map_alloc net/packet: rx_owner_map depends on pg_vec sit: do not call ipip6_dev_free() from sit_init_net() USB: gadget: bRequestType is a bitfield, not a enum USB: NO_LPM quirk Lenovo USB-C to Ethernet Adapher(RTL8153-04) PCI/MSI: Clear PCI_MSIX_FLAGS_MASKALL on error PCI/MSI: Mask MSI-X vectors only on success USB: serial: cp210x: fix CP2105 GPIO registration USB: serial: option: add Telit FN990 compositions timekeeping: Really make sure wall_to_monotonic isn't positive libata: if T_LENGTH is zero, dma direction should be DMA_NONE drm/amdgpu: correct register access for RLC_JUMP_TABLE_RESTORE net: systemport: Add global locking for descriptor lifecycle mac80211: validate extended element ID is present net: lan78xx: Avoid unnecessary self assignment ARM: 8805/2: remove unneeded naked function usage mwifiex: Remove unnecessary braces from HostCmd_SET_SEQ_NO_BSS_INFO ARM: 8800/1: use choice for kernel unwinders Input: touchscreen - avoid bitwise vs logical OR warning firmware: arm_scpi: Fix string overflow in SCPI genpd driver ARM: dts: imx6ull-pinfunc: Fix CSI_DATA07__ESAI_TX0 pad name media: mxl111sf: change mutex_init() location fuse: annotate lock in fuse_reverse_inval_entry() ovl: fix warning in ovl_create_real() scsi: scsi_debug: Sanity check block descriptor length in resp_mode_select() xen/blkfront: harden blkfront against event channel storms xen/netfront: harden netfront against event channel storms xen/console: harden hvc_xen against event channel storms xen/netback: fix rx queue stall detection xen/netback: don't queue unlimited number of packages Linux 4.19.222 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I2cbae15209a73e612b3acded2e87cacf48024186 |
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Stefan Agner
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b182bc7139 |
ARM: 8800/1: use choice for kernel unwinders
commit f9b58e8c7d031b0daa5c9a9ee27f5a4028ba53ac upstream.
While in theory multiple unwinders could be compiled in, it does
not make sense in practise. Use a choice to make the unwinder
selection mutually exclusive and mandatory.
Already before this commit it has not been possible to deselect
FRAME_POINTER. Remove the obsolete comment.
Furthermore, to produce a meaningful backtrace with FRAME_POINTER
enabled the kernel needs a specific function prologue:
mov ip, sp
stmfd sp!, {fp, ip, lr, pc}
sub fp, ip, #4
To get to the required prologue gcc uses apcs and no-sched-prolog.
This compiler options are not available on clang, and clang is not
able to generate the required prologue. Make the FRAME_POINTER
config symbol depending on !clang.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Greg Kroah-Hartman
|
4811a2803a |
Merge 4.19.208 into android-4.19-stable
Changes in 4.19.208 s390/bpf: Fix optimizing out zero-extensions KVM: remember position in kvm->vcpus array rcu: Fix missed wakeup of exp_wq waiters apparmor: remove duplicate macro list_entry_is_head() crypto: talitos - fix max key size for sha384 and sha512 tracing/kprobe: Fix kprobe_on_func_entry() modification sctp: validate chunk size in __rcv_asconf_lookup sctp: add param size validation for SCTP_PARAM_SET_PRIMARY dmaengine: acpi: Avoid comparison GSI with Linux vIRQ thermal/drivers/exynos: Fix an error code in exynos_tmu_probe() 9p/trans_virtio: Remove sysfs file on probe failure prctl: allow to setup brk for et_dyn executables nilfs2: use refcount_dec_and_lock() to fix potential UAF profiling: fix shift-out-of-bounds bugs pwm: lpc32xx: Don't modify HW state in .probe() after the PWM chip was registered Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() parisc: Move pci_dev_is_behind_card_dino to where it is used dmaengine: sprd: Add missing MODULE_DEVICE_TABLE dmaengine: ioat: depends on !UML dmaengine: xilinx_dma: Set DMA mask for coherent APIs ceph: lockdep annotations for try_nonblocking_invalidate nilfs2: fix memory leak in nilfs_sysfs_create_device_group nilfs2: fix NULL pointer in nilfs_##name##_attr_release nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group pwm: img: Don't modify HW state in .remove() callback pwm: rockchip: Don't modify HW state in .remove() callback pwm: stm32-lp: Don't modify HW state in .remove() callback blk-throttle: fix UAF by deleteing timer in blk_throtl_exit() drm/nouveau/nvkm: Replace -ENOSYS with -ENODEV Linux 4.19.208 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I600844898dabfffbfdcf6ab298fea2c270a1c691 |
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Lukas Bulwahn
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5a402646c9 |
Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH
[ Upstream commit 6fe26259b4884b657cbc233fb9cdade9d704976e ] Commit |
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Kees Cook
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f6a291e73a |
UPSTREAM: lib: Introduce test_stackinit module
Upstream commit 50ceaa95ea09 ("lib: Introduce test_stackinit module").
Adds test for stack initialization coverage. We have several build options
that control the level of stack variable initialization. This test lets us
visualize which options cover which cases, and provide tests for some of
the pathological padding conditions the compiler will sometimes fail to
initialize.
All options pass the explicit initialization cases and the partial
initializers (even with padding):
test_stackinit: u8_zero ok
test_stackinit: u16_zero ok
test_stackinit: u32_zero ok
test_stackinit: u64_zero ok
test_stackinit: char_array_zero ok
test_stackinit: small_hole_zero ok
test_stackinit: big_hole_zero ok
test_stackinit: trailing_hole_zero ok
test_stackinit: packed_zero ok
test_stackinit: small_hole_dynamic_partial ok
test_stackinit: big_hole_dynamic_partial ok
test_stackinit: trailing_hole_dynamic_partial ok
test_stackinit: packed_dynamic_partial ok
test_stackinit: small_hole_static_partial ok
test_stackinit: big_hole_static_partial ok
test_stackinit: trailing_hole_static_partial ok
test_stackinit: packed_static_partial ok
test_stackinit: packed_static_all ok
test_stackinit: packed_dynamic_all ok
test_stackinit: packed_runtime_all ok
The results of the other tests (which contain no explicit initialization),
change based on the build's configured compiler instrumentation.
No options:
test_stackinit: small_hole_static_all FAIL (uninit bytes: 3)
test_stackinit: big_hole_static_all FAIL (uninit bytes: 61)
test_stackinit: trailing_hole_static_all FAIL (uninit bytes: 7)
test_stackinit: small_hole_dynamic_all FAIL (uninit bytes: 3)
test_stackinit: big_hole_dynamic_all FAIL (uninit bytes: 61)
test_stackinit: trailing_hole_dynamic_all FAIL (uninit bytes: 7)
test_stackinit: small_hole_runtime_partial FAIL (uninit bytes: 23)
test_stackinit: big_hole_runtime_partial FAIL (uninit bytes: 127)
test_stackinit: trailing_hole_runtime_partial FAIL (uninit bytes: 24)
test_stackinit: packed_runtime_partial FAIL (uninit bytes: 24)
test_stackinit: small_hole_runtime_all FAIL (uninit bytes: 3)
test_stackinit: big_hole_runtime_all FAIL (uninit bytes: 61)
test_stackinit: trailing_hole_runtime_all FAIL (uninit bytes: 7)
test_stackinit: u8_none FAIL (uninit bytes: 1)
test_stackinit: u16_none FAIL (uninit bytes: 2)
test_stackinit: u32_none FAIL (uninit bytes: 4)
test_stackinit: u64_none FAIL (uninit bytes: 8)
test_stackinit: char_array_none FAIL (uninit bytes: 16)
test_stackinit: switch_1_none FAIL (uninit bytes: 8)
test_stackinit: switch_2_none FAIL (uninit bytes: 8)
test_stackinit: small_hole_none FAIL (uninit bytes: 24)
test_stackinit: big_hole_none FAIL (uninit bytes: 128)
test_stackinit: trailing_hole_none FAIL (uninit bytes: 32)
test_stackinit: packed_none FAIL (uninit bytes: 32)
test_stackinit: user FAIL (uninit bytes: 32)
test_stackinit: failures: 25
CONFIG_GCC_PLUGIN_STRUCTLEAK_USER=y
This only tries to initialize structs with __user markings, so
only the difference from above is now the "user" test passes:
test_stackinit: small_hole_static_all FAIL (uninit bytes: 3)
test_stackinit: big_hole_static_all FAIL (uninit bytes: 61)
test_stackinit: trailing_hole_static_all FAIL (uninit bytes: 7)
test_stackinit: small_hole_dynamic_all FAIL (uninit bytes: 3)
test_stackinit: big_hole_dynamic_all FAIL (uninit bytes: 61)
test_stackinit: trailing_hole_dynamic_all FAIL (uninit bytes: 7)
test_stackinit: small_hole_runtime_partial FAIL (uninit bytes: 23)
test_stackinit: big_hole_runtime_partial FAIL (uninit bytes: 127)
test_stackinit: trailing_hole_runtime_partial FAIL (uninit bytes: 24)
test_stackinit: packed_runtime_partial FAIL (uninit bytes: 24)
test_stackinit: small_hole_runtime_all FAIL (uninit bytes: 3)
test_stackinit: big_hole_runtime_all FAIL (uninit bytes: 61)
test_stackinit: trailing_hole_runtime_all FAIL (uninit bytes: 7)
test_stackinit: u8_none FAIL (uninit bytes: 1)
test_stackinit: u16_none FAIL (uninit bytes: 2)
test_stackinit: u32_none FAIL (uninit bytes: 4)
test_stackinit: u64_none FAIL (uninit bytes: 8)
test_stackinit: char_array_none FAIL (uninit bytes: 16)
test_stackinit: switch_1_none FAIL (uninit bytes: 8)
test_stackinit: switch_2_none FAIL (uninit bytes: 8)
test_stackinit: small_hole_none FAIL (uninit bytes: 24)
test_stackinit: big_hole_none FAIL (uninit bytes: 128)
test_stackinit: trailing_hole_none FAIL (uninit bytes: 32)
test_stackinit: packed_none FAIL (uninit bytes: 32)
test_stackinit: user ok
test_stackinit: failures: 24
CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF=y
This initializes all structures passed by reference (scalars and strings
remain uninitialized):
test_stackinit: small_hole_static_all ok
test_stackinit: big_hole_static_all ok
test_stackinit: trailing_hole_static_all ok
test_stackinit: small_hole_dynamic_all ok
test_stackinit: big_hole_dynamic_all ok
test_stackinit: trailing_hole_dynamic_all ok
test_stackinit: small_hole_runtime_partial ok
test_stackinit: big_hole_runtime_partial ok
test_stackinit: trailing_hole_runtime_partial ok
test_stackinit: packed_runtime_partial ok
test_stackinit: small_hole_runtime_all ok
test_stackinit: big_hole_runtime_all ok
test_stackinit: trailing_hole_runtime_all ok
test_stackinit: u8_none FAIL (uninit bytes: 1)
test_stackinit: u16_none FAIL (uninit bytes: 2)
test_stackinit: u32_none FAIL (uninit bytes: 4)
test_stackinit: u64_none FAIL (uninit bytes: 8)
test_stackinit: char_array_none FAIL (uninit bytes: 16)
test_stackinit: switch_1_none FAIL (uninit bytes: 8)
test_stackinit: switch_2_none FAIL (uninit bytes: 8)
test_stackinit: small_hole_none ok
test_stackinit: big_hole_none ok
test_stackinit: trailing_hole_none ok
test_stackinit: packed_none ok
test_stackinit: user ok
test_stackinit: failures: 7
CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL=y
This initializes all variables, so it matches above with the scalars
and arrays included:
test_stackinit: small_hole_static_all ok
test_stackinit: big_hole_static_all ok
test_stackinit: trailing_hole_static_all ok
test_stackinit: small_hole_dynamic_all ok
test_stackinit: big_hole_dynamic_all ok
test_stackinit: trailing_hole_dynamic_all ok
test_stackinit: small_hole_runtime_partial ok
test_stackinit: big_hole_runtime_partial ok
test_stackinit: trailing_hole_runtime_partial ok
test_stackinit: packed_runtime_partial ok
test_stackinit: small_hole_runtime_all ok
test_stackinit: big_hole_runtime_all ok
test_stackinit: trailing_hole_runtime_all ok
test_stackinit: u8_none ok
test_stackinit: u16_none ok
test_stackinit: u32_none ok
test_stackinit: u64_none ok
test_stackinit: char_array_none ok
test_stackinit: switch_1_none ok
test_stackinit: switch_2_none ok
test_stackinit: small_hole_none ok
test_stackinit: big_hole_none ok
test_stackinit: trailing_hole_none ok
test_stackinit: packed_none ok
test_stackinit: user ok
test_stackinit: all tests passed!
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Change-Id: I7f97a6dc5887957f8a356bcf2a53e117cbab6bdf
Signed-off-by: Alexander Potapenko <glider@google.com>
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Greg Kroah-Hartman
|
d936a940f4 |
UPSTREAM: dynamic_debug: allow to work if debugfs is disabled
With the realization that having debugfs enabled on "production" systems is generally not a good idea, debugfs is being disabled from more and more platforms over time. However, the functionality of dynamic debugging still is needed at times, and since it relies on debugfs for its user api, having debugfs disabled also forces dynamic debug to be disabled. To get around this, also create the "control" file for dynamic_debug in procfs. This allows people turn on debugging as needed at runtime for individual driverfs and subsystems. Bug: 145162121 Reported-by: many different companies Cc: Jason Baron <jbaron@akamai.com> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20200210211142.GB1373304@kroah.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 239a5791ffd5559f51815df442c4dbbe7fc21ade) Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Icd892ea823af6254726847700fd9c251d13b556b |
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Mark Rutland
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877fb9d674 |
UPSTREAM: kcov: improve CONFIG_ARCH_HAS_KCOV help text
(Upstream commit 40453c4f9bb6d166a56a102a8c51dd24b0801557.) The help text for CONFIG_ARCH_HAS_KCOV is stale, and describes the feature as being enabled only for x86_64, when it is now enabled for several architectures, including arm, arm64, powerpc, and s390. Let's remove that stale help text, and update it along the lines of hat for ARCH_HAS_FORTIFY_SOURCE, better describing when an architecture should select CONFIG_ARCH_HAS_KCOV. Link: http://lkml.kernel.org/r/20190412102733.5154-1-mark.rutland@arm.com Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Dmitry Vyukov <dvyukov@google.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Bug: 147413187 Change-Id: If1a6cce383c704fc96ea9a267459b665d32fb8bd |
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Greg Kroah-Hartman
|
75337a6f96 |
Merge 4.19.78 into android-4.19
Changes in 4.19.78 tpm: use tpm_try_get_ops() in tpm-sysfs.c. tpm: Fix TPM 1.2 Shutdown sequence to prevent future TPM operations drm/bridge: tc358767: Increase AUX transfer length limit drm/panel: simple: fix AUO g185han01 horizontal blanking video: ssd1307fb: Start page range at page_offset drm/stm: attach gem fence to atomic state drm/panel: check failure cases in the probe func drm/rockchip: Check for fast link training before enabling psr drm/radeon: Fix EEH during kexec gpu: drm: radeon: Fix a possible null-pointer dereference in radeon_connector_set_property() PCI: rpaphp: Avoid a sometimes-uninitialized warning ipmi_si: Only schedule continuously in the thread in maintenance mode clk: qoriq: Fix -Wunused-const-variable clk: sunxi-ng: v3s: add missing clock slices for MMC2 module clocks drm/amd/display: fix issue where 252-255 values are clipped drm/amd/display: reprogram VM config when system resume powerpc/powernv/ioda2: Allocate TCE table levels on demand for default DMA window clk: actions: Don't reference clk_init_data after registration clk: sirf: Don't reference clk_init_data after registration clk: sprd: Don't reference clk_init_data after registration clk: zx296718: Don't reference clk_init_data after registration powerpc/xmon: Check for HV mode when dumping XIVE info from OPAL powerpc/rtas: use device model APIs and serialization during LPM powerpc/futex: Fix warning: 'oldval' may be used uninitialized in this function powerpc/pseries/mobility: use cond_resched when updating device tree pinctrl: tegra: Fix write barrier placement in pmx_writel powerpc/eeh: Clear stale EEH_DEV_NO_HANDLER flag vfio_pci: Restore original state on release drm/nouveau/volt: Fix for some cards having 0 maximum voltage pinctrl: amd: disable spurious-firing GPIO IRQs clk: renesas: mstp: Set GENPD_FLAG_ALWAYS_ON for clock domain clk: renesas: cpg-mssr: Set GENPD_FLAG_ALWAYS_ON for clock domain drm/amd/display: support spdif drm/amdgpu/si: fix ASIC tests powerpc/64s/exception: machine check use correct cfar for late handler pstore: fs superblock limits clk: qcom: gcc-sdm845: Use floor ops for sdcc clks powerpc/pseries: correctly track irq state in default idle pinctrl: meson-gxbb: Fix wrong pinning definition for uart_c arm64: fix unreachable code issue with cmpxchg clk: at91: select parent if main oscillator or bypass is enabled powerpc: dump kernel log before carrying out fadump or kdump mbox: qcom: add APCS child device for QCS404 clk: sprd: add missing kfree scsi: core: Reduce memory required for SCSI logging dma-buf/sw_sync: Synchronize signal vs syncpt free ext4: fix potential use after free after remounting with noblock_validity MIPS: Ingenic: Disable broken BTB lookup optimization. MIPS: tlbex: Explicitly cast _PAGE_NO_EXEC to a boolean i2c-cht-wc: Fix lockdep warning mfd: intel-lpss: Remove D3cold delay PCI: tegra: Fix OF node reference leak HID: wacom: Fix several minor compiler warnings livepatch: Nullify obj->mod in klp_module_coming()'s error path ARM: 8898/1: mm: Don't treat faults reported from cache maintenance as writes soundwire: intel: fix channel number reported by hardware ARM: 8875/1: Kconfig: default to AEABI w/ Clang rtc: snvs: fix possible race condition rtc: pcf85363/pcf85263: fix regmap error in set_time HID: apple: Fix stuck function keys when using FN PCI: rockchip: Propagate errors for optional regulators PCI: histb: Propagate errors for optional regulators PCI: imx6: Propagate errors for optional regulators PCI: exynos: Propagate errors for optional PHYs security: smack: Fix possible null-pointer dereferences in smack_socket_sock_rcv_skb() ARM: 8903/1: ensure that usable memory in bank 0 starts from a PMD-aligned address fat: work around race with userspace's read via blockdev while mounting pktcdvd: remove warning on attempting to register non-passthrough dev hypfs: Fix error number left in struct pointer member crypto: hisilicon - Fix double free in sec_free_hw_sgl() kbuild: clean compressed initramfs image ocfs2: wait for recovering done after direct unlock request kmemleak: increase DEBUG_KMEMLEAK_EARLY_LOG_SIZE default to 16K arm64: consider stack randomization for mmap base only when necessary mips: properly account for stack randomization and stack guard gap arm: properly account for stack randomization and stack guard gap arm: use STACK_TOP when computing mmap base address block: mq-deadline: Fix queue restart handling bpf: fix use after free in prog symbol exposure cxgb4:Fix out-of-bounds MSI-X info array access erspan: remove the incorrect mtu limit for erspan hso: fix NULL-deref on tty open ipv6: drop incoming packets having a v4mapped source address ipv6: Handle missing host route in __ipv6_ifa_notify net: ipv4: avoid mixed n_redirects and rate_tokens usage net: qlogic: Fix memory leak in ql_alloc_large_buffers net: Unpublish sk from sk_reuseport_cb before call_rcu nfc: fix memory leak in llcp_sock_bind() qmi_wwan: add support for Cinterion CLS8 devices rxrpc: Fix rxrpc_recvmsg tracepoint sch_dsmark: fix potential NULL deref in dsmark_init() udp: fix gso_segs calculations vsock: Fix a lockdep warning in __vsock_release() net: dsa: rtl8366: Check VLAN ID and not ports udp: only do GSO if # of segs > 1 net/rds: Fix error handling in rds_ib_add_one() xen-netfront: do not use ~0U as error return value for xennet_fill_frags() tipc: fix unlimited bundling of small messages sch_cbq: validate TCA_CBQ_WRROPT to avoid crash soundwire: Kconfig: fix help format soundwire: fix regmap dependencies and align with other serial links Smack: Don't ignore other bprm->unsafe flags if LSM_UNSAFE_PTRACE is set smack: use GFP_NOFS while holding inode_smack::smk_lock NFC: fix attrs checks in netlink interface kexec: bail out upon SIGKILL when allocating memory. 9p/cache.c: Fix memory leak in v9fs_cache_session_get_cookie Linux 4.19.78 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I02db9c4a0cc1f784e6ac1523599fcbed747a6375 |
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Nicolas Boichat
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30ab799e75 |
kmemleak: increase DEBUG_KMEMLEAK_EARLY_LOG_SIZE default to 16K
[ Upstream commit b751c52bb587ae66f773b15204ef7a147467f4c7 ] The current default value (400) is too low on many systems (e.g. some ARM64 platform takes up 1000+ entries). syzbot uses 16000 as default value, and has proved to be enough on beefy configurations, so let's pick that value. This consumes more RAM on boot (each entry is 160 bytes, so in total ~2.5MB of RAM), but the memory would later be freed (early_log is __initdata). Link: http://lkml.kernel.org/r/20190730154027.101525-1-drinkcat@chromium.org Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Suggested-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Dmitry Vyukov <dvyukov@google.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Kees Cook <keescook@chromium.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Joe Lawrence <joe.lawrence@redhat.com> Cc: Uladzislau Rezki <urezki@gmail.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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Andrey Ryabinin
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f46851e627 |
BACKPORT: kasan: remove use after scope bugs detection.
(Upstream commit 7771bdbbfd3d6f204631b6fd9e1bbc30cd15918e). Use after scope bugs detector seems to be almost entirely useless for the linux kernel. It exists over two years, but I've seen only one valid bug so far [1]. And the bug was fixed before it has been reported. There were some other use-after-scope reports, but they were false-positives due to different reasons like incompatibility with structleak plugin. This feature significantly increases stack usage, especially with GCC < 9 version, and causes a 32K stack overflow. It probably adds performance penalty too. Given all that, let's remove use-after-scope detector entirely. While preparing this patch I've noticed that we mistakenly enable use-after-scope detection for clang compiler regardless of CONFIG_KASAN_EXTRA setting. This is also fixed now. [1] http://lkml.kernel.org/r/<20171129052106.rhgbjhhis53hkgfn@wfg-t540p.sh.intel.com> Link: http://lkml.kernel.org/r/20190111185842.13978-1-aryabinin@virtuozzo.com Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Acked-by: Will Deacon <will.deacon@arm.com> [arm64] Cc: Qian Cai <cai@lca.pw> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Change-Id: I00d869a5e287e3e198950b78ad17bd6ff6a51595 Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Bug: 128674696 |
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Alexander Potapenko
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e703875779 |
UPSTREAM: lib: introduce test_meminit module
Upstream commit 5015a300a522 ("lib: introduce test_meminit module").
Add tests for heap and pagealloc initialization. These can be used to
check init_on_alloc and init_on_free implementations as well as other
approaches to initialization.
Expected test output in the case the kernel provides heap initialization
(e.g. when running with either init_on_alloc=1 or init_on_free=1):
test_meminit: all 10 tests in test_pages passed
test_meminit: all 40 tests in test_kvmalloc passed
test_meminit: all 60 tests in test_kmemcache passed
test_meminit: all 10 tests in test_rcu_persistent passed
test_meminit: all 120 tests passed!
Link: http://lkml.kernel.org/r/20190529123812.43089-4-glider@google.com
Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Kostya Serebryany <kcc@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Sandeep Patil <sspatil@android.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: I815efdc79304ae1ad6ef60277ac5b88a4c41d479
Bug: 138435492
Test: Boot cuttlefish with and without
Test: CONFIG_INIT_ON_ALLOC_DEFAULT_ON/CONFIG_INIT_ON_FREE_DEFAULT_ON
Signed-off-by: Alexander Potapenko <glider@google.com>
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YueHaibing
|
ce900ddd66 |
lib/Kconfig.debug: fix build error without CONFIG_BLOCK
commit ae3d6a323347940f0548bbb4b17f0bb2e9164169 upstream.
If CONFIG_TEST_KMOD is set to M, while CONFIG_BLOCK is not set, XFS and
BTRFS can not be compiled successly.
Link: http://lkml.kernel.org/r/20190410075434.35220-1-yuehaibing@huawei.com
Fixes:
|
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Thibaut Sautereau
|
4c5d114ea0 |
lib/Kconfig.debug: fix three typos in help text
Fix three typos in CONFIG_WARN_ALL_UNSEEDED_RANDOM help text. Link: http://lkml.kernel.org/r/20180830194505.4778-1-thibaut@sautereau.fr Signed-off-by: Thibaut Sautereau <thibaut@sautereau.fr> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
aba16dc5cf |
Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax
Pull IDA updates from Matthew Wilcox:
"A better IDA API:
id = ida_alloc(ida, GFP_xxx);
ida_free(ida, id);
rather than the cumbersome ida_simple_get(), ida_simple_remove().
The new IDA API is similar to ida_simple_get() but better named. The
internal restructuring of the IDA code removes the bitmap
preallocation nonsense.
I hope the net -200 lines of code is convincing"
* 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax: (29 commits)
ida: Change ida_get_new_above to return the id
ida: Remove old API
test_ida: check_ida_destroy and check_ida_alloc
test_ida: Convert check_ida_conv to new API
test_ida: Move ida_check_max
test_ida: Move ida_check_leaf
idr-test: Convert ida_check_nomem to new API
ida: Start new test_ida module
target/iscsi: Allocate session IDs from an IDA
iscsi target: fix session creation failure handling
drm/vmwgfx: Convert to new IDA API
dmaengine: Convert to new IDA API
ppc: Convert vas ID allocation to new IDA API
media: Convert entity ID allocation to new IDA API
ppc: Convert mmu context allocation to new IDA API
Convert net_namespace to new IDA API
cb710: Convert to new IDA API
rsxx: Convert to new IDA API
osd: Convert to new IDA API
sd: Convert to new IDA API
...
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Andy Shevchenko
|
fd7338ef62 |
lib/Kconfig: remove 'default n' for tests
It seems contributors follow the style of Kconfig entries where explicit 'default n' is present. The default 'default' is 'n' already, thus, drop these lines from Kconfig to make it more clear. Link: http://lkml.kernel.org/r/20180719085131.79541-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Coly Li <colyli@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Matthew Wilcox
|
8ab8ba38d4 |
ida: Start new test_ida module
Start transitioning the IDA tests into kernel space. Framework heavily cribbed from test_xarray.c. Signed-off-by: Matthew Wilcox <willy@infradead.org> |
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Linus Torvalds
|
771c035372 |
deprecate the '__deprecated' attribute warnings entirely and for good
We haven't had lots of deprecation warnings lately, but the rdma use of it made them flare up again. They are not useful. They annoy everybody, and nobody ever does anything about them, because it's always "somebody elses problem". And when people start thinking that warnings are normal, they stop looking at them, and the real warnings that mean something go unnoticed. If you want to get rid of a function, just get rid of it. Convert every user to the new world order. And if you can't do that, then don't annoy everybody else with your marking that says "I couldn't be bothered to fix this, so I'll just spam everybody elses build logs with warnings about my laziness". Make a kernelnewbies wiki page about things that could be cleaned up, write a blog post about it, or talk to people on the mailing lists. But don't add warnings to the kernel build about cleanup that you think should happen but you aren't doing yourself. Don't. Just don't. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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9a76aba02a |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
"Highlights:
- Gustavo A. R. Silva keeps working on the implicit switch fallthru
changes.
- Support 802.11ax High-Efficiency wireless in cfg80211 et al, From
Luca Coelho.
- Re-enable ASPM in r8169, from Kai-Heng Feng.
- Add virtual XFRM interfaces, which avoids all of the limitations of
existing IPSEC tunnels. From Steffen Klassert.
- Convert GRO over to use a hash table, so that when we have many
flows active we don't traverse a long list during accumluation.
- Many new self tests for routing, TC, tunnels, etc. Too many
contributors to mention them all, but I'm really happy to keep
seeing this stuff.
- Hardware timestamping support for dpaa_eth/fsl-fman from Yangbo Lu.
- Lots of cleanups and fixes in L2TP code from Guillaume Nault.
- Add IPSEC offload support to netdevsim, from Shannon Nelson.
- Add support for slotting with non-uniform distribution to netem
packet scheduler, from Yousuk Seung.
- Add UDP GSO support to mlx5e, from Boris Pismenny.
- Support offloading of Team LAG in NFP, from John Hurley.
- Allow to configure TX queue selection based upon RX queue, from
Amritha Nambiar.
- Support ethtool ring size configuration in aquantia, from Anton
Mikaev.
- Support DSCP and flowlabel per-transport in SCTP, from Xin Long.
- Support list based batching and stack traversal of SKBs, this is
very exciting work. From Edward Cree.
- Busyloop optimizations in vhost_net, from Toshiaki Makita.
- Introduce the ETF qdisc, which allows time based transmissions. IGB
can offload this in hardware. From Vinicius Costa Gomes.
- Add parameter support to devlink, from Moshe Shemesh.
- Several multiplication and division optimizations for BPF JIT in
nfp driver, from Jiong Wang.
- Lots of prepatory work to make more of the packet scheduler layer
lockless, when possible, from Vlad Buslov.
- Add ACK filter and NAT awareness to sch_cake packet scheduler, from
Toke Høiland-Jørgensen.
- Support regions and region snapshots in devlink, from Alex Vesker.
- Allow to attach XDP programs to both HW and SW at the same time on
a given device, with initial support in nfp. From Jakub Kicinski.
- Add TLS RX offload and support in mlx5, from Ilya Lesokhin.
- Use PHYLIB in r8169 driver, from Heiner Kallweit.
- All sorts of changes to support Spectrum 2 in mlxsw driver, from
Ido Schimmel.
- PTP support in mv88e6xxx DSA driver, from Andrew Lunn.
- Make TCP_USER_TIMEOUT socket option more accurate, from Jon
Maxwell.
- Support for templates in packet scheduler classifier, from Jiri
Pirko.
- IPV6 support in RDS, from Ka-Cheong Poon.
- Native tproxy support in nf_tables, from Máté Eckl.
- Maintain IP fragment queue in an rbtree, but optimize properly for
in-order frags. From Peter Oskolkov.
- Improvde handling of ACKs on hole repairs, from Yuchung Cheng"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1996 commits)
bpf: test: fix spelling mistake "REUSEEPORT" -> "REUSEPORT"
hv/netvsc: Fix NULL dereference at single queue mode fallback
net: filter: mark expected switch fall-through
xen-netfront: fix warn message as irq device name has '/'
cxgb4: Add new T5 PCI device ids 0x50af and 0x50b0
net: dsa: mv88e6xxx: missing unlock on error path
rds: fix building with IPV6=m
inet/connection_sock: prefer _THIS_IP_ to current_text_addr
net: dsa: mv88e6xxx: bitwise vs logical bug
net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd()
ieee802154: hwsim: using right kind of iteration
net: hns3: Add vlan filter setting by ethtool command -K
net: hns3: Set tx ring' tc info when netdev is up
net: hns3: Remove tx ring BD len register in hns3_enet
net: hns3: Fix desc num set to default when setting channel
net: hns3: Fix for phy link issue when using marvell phy driver
net: hns3: Fix for information of phydev lost problem when down/up
net: hns3: Fix for command format parsing error in hclge_is_all_function_id_zero
net: hns3: Add support for serdes loopback selftest
bnxt_en: take coredump_record structure off stack
...
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Linus Torvalds
|
fa1b5d09d0 |
Merge tag 'kconfig-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig consolidation from Masahiro Yamada: "Consolidation of Kconfig files by Christoph Hellwig. Move the source statements of arch-independent Kconfig files instead of duplicating the includes in every arch/$(SRCARCH)/Kconfig" * tag 'kconfig-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig: add a Memory Management options" menu kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt kconfig: use a menu in arch/Kconfig to reduce clutter kconfig: include kernel/Kconfig.preempt from init/Kconfig Kconfig: consolidate the "Kernel hacking" menu kconfig: include common Kconfig files from top-level Kconfig kconfig: remove duplicate SWAP symbol defintions um: create a proper drivers Kconfig um: cleanup Kconfig files um: stop abusing KBUILD_KCONFIG |
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Linus Torvalds
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b125d90388 |
Merge tag 'printk-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek: - Different vendors have a different expectation about a console quietness. Make it configurable to reduce bike-shedding about the upstream default - Decide about the message visibility when the message is stored. It avoids races caused by a delayed console handling - Always store printk() messages into the per-CPU buffers again in NMI. The only exception is when flushing trace log in panic(). There the risk of loosing messages is worth an eventual reordering - Handle invalid %pO printf modifiers correctly - Better handle %p printf modifier tests before crng is initialized - Some clean up * tag 'printk-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: lib/vsprintf: Do not handle %pO[^F] as %px printk: Fix warning about unused suppress_message_printing printk/nmi: Prevent deadlock when accessing the main log buffer in NMI printk: Create helper function to queue deferred console handling printk: Split the code for storing a message into the log buffer printk: Clean up syslog_print_all() printk: Remove unnecessary kmalloc() from syslog during clear printk: Make CONSOLE_LOGLEVEL_QUIET configurable printk: make sure to print log on console. lib/test_printf.c: accept "ptrval" as valid result for plain 'p' tests |
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Christoph Hellwig
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87a4c37599 |
kconfig: include kernel/Kconfig.preempt from init/Kconfig
Almost all architectures include it. Add a ARCH_NO_PREEMPT symbol to disable preempt support for alpha, hexagon, non-coldfire m68k and user mode Linux. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> |
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Christoph Hellwig
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06ec64b84c |
Kconfig: consolidate the "Kernel hacking" menu
Move the source of lib/Kconfig.debug and arch/$(ARCH)/Kconfig.debug to the top-level Kconfig. For two architectures that means moving their arch-specific symbols in that menu into a new arch Kconfig.debug file, and for a few more creating a dummy file so that we can include it unconditionally. Also move the actual 'Kernel hacking' menu to lib/Kconfig.debug, where it belongs. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> |
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Johannes Berg
|
0e2dc70e3d |
bitfield: add tests
Add tests for the bitfield helpers. The constant ones will all be folded to nothing by the compiler (if everything is correct in the header file), and the variable ones do some tests against open-coding the necessary shifts. A few test cases that should fail/warn compilation are provided under ifdef. Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> |
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Hans de Goede
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22eceb8bf3 |
printk: Make CONSOLE_LOGLEVEL_QUIET configurable
The goal of passing the "quiet" option to the kernel is for the kernel to be quiet unless something really is wrong. Sofar passing quiet has been (mostly) equivalent to passing loglevel=4 on the kernel commandline. Which means to show any messages with a level of KERN_ERR or higher severity on the console. In practice this often does not result in a quiet boot though, since there are many false-positive or otherwise harmless error messages printed, defeating the purpose of the quiet option. Esp. the ACPICA code is really bad wrt this, but there are plenty of others too. This commit makes CONSOLE_LOGLEVEL_QUIET configurable. This for example will allow distros which want quiet to really mean quiet to set CONSOLE_LOGLEVEL_QUIET so that only messages with a higher severity then KERN_ERR (CRIT, ALERT, EMERG) get printed, avoiding an endless game of whack-a-mole silencing harmless error messages. Link: http://lkml.kernel.org/r/20180619115726.3098-1-hdegoede@redhat.com To: Petr Mladek <pmladek@suse.com> To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com> |
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Masami Hiramatsu
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5a6cf77f5e |
kprobes: Remove jprobe API implementation
Remove functionally empty jprobe API implementations and test cases. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: linux-arch@vger.kernel.org Link: https://lore.kernel.org/lkml/152942430705.15209.2307050500995264322.stgit@devbox Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Mikulas Patocka
|
f1b4bd0676 |
fault-injection: reorder config entries
Reorder Kconfig entries, so that menuconfig displays proper indentation. Link: http://lkml.kernel.org/r/alpine.LRH.2.02.1804251601160.30569@file01.intranet.prod.int.rdu2.redhat.com Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Masahiro Yamada
|
5aadfdeb8d |
kcov: test compiler capability in Kconfig and correct dependency
As Documentation/kbuild/kconfig-language.txt notes, 'select' should be be used with care - it forces a lower limit of another symbol, ignoring the dependency. Currently, KCOV can select GCC_PLUGINS even if arch does not select HAVE_GCC_PLUGINS. This could cause the unmet direct dependency. Now that Kconfig can test compiler capability, let's handle this in a more sophisticated way. There are two ways to enable KCOV; use the compiler that natively supports -fsanitize-coverage=trace-pc, or build the SANCOV plugin if the compiler has ability to build GCC plugins. Hence, the correct dependency for KCOV is: depends on CC_HAS_SANCOV_TRACE_PC || GCC_PLUGINS You do not need to build the SANCOV plugin if the compiler already supports -fsanitize-coverage=trace-pc. Hence, the select should be: select GCC_PLUGIN_SANCOV if !CC_HAS_SANCOV_TRACE_PC With this, GCC_PLUGIN_SANCOV is selected only when necessary, so scripts/Makefile.gcc-plugins can be cleaner. I also cleaned up Kconfig and scripts/Makefile.kcov as well. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Kees Cook <keescook@chromium.org> |
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Linus Torvalds
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2857676045 |
Merge tag 'overflow-v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull overflow updates from Kees Cook:
"This adds the new overflow checking helpers and adds them to the
2-factor argument allocators. And this adds the saturating size
helpers and does a treewide replacement for the struct_size() usage.
Additionally this adds the overflow testing modules to make sure
everything works.
I'm still working on the treewide replacements for allocators with
"simple" multiplied arguments:
*alloc(a * b, ...) -> *alloc_array(a, b, ...)
and
*zalloc(a * b, ...) -> *calloc(a, b, ...)
as well as the more complex cases, but that's separable from this
portion of the series. I expect to have the rest sent before -rc1
closes; there are a lot of messy cases to clean up.
Summary:
- Introduce arithmetic overflow test helper functions (Rasmus)
- Use overflow helpers in 2-factor allocators (Kees, Rasmus)
- Introduce overflow test module (Rasmus, Kees)
- Introduce saturating size helper functions (Matthew, Kees)
- Treewide use of struct_size() for allocators (Kees)"
* tag 'overflow-v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
treewide: Use struct_size() for devm_kmalloc() and friends
treewide: Use struct_size() for vmalloc()-family
treewide: Use struct_size() for kmalloc()-family
device: Use overflow helpers for devm_kmalloc()
mm: Use overflow helpers in kvmalloc()
mm: Use overflow helpers in kmalloc_array*()
test_overflow: Add memory allocation overflow tests
overflow.h: Add allocation size calculation helpers
test_overflow: Report test failures
test_overflow: macrofy some more, do more tests for free
lib: add runtime test of check_*_overflow functions
compiler.h: enable builtin overflow checkers and add fallback code
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Rasmus Villemoes
|
455a35a6cd |
lib: add runtime test of check_*_overflow functions
This adds a small module for testing that the check_*_overflow functions work as expected, whether implemented in C or using gcc builtins. Example output: test_overflow: u8 : 18 tests test_overflow: s8 : 19 tests test_overflow: u16: 17 tests test_overflow: s16: 17 tests test_overflow: u32: 17 tests test_overflow: s32: 17 tests test_overflow: u64: 17 tests test_overflow: s64: 21 tests Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> [kees: add output to commit log, drop u64 tests on 32-bit] Signed-off-by: Kees Cook <keescook@chromium.org> |
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Robin Murphy
|
78c47830a5 |
dma-debug: check scatterlist segments
Drivers/subsystems creating scatterlists for DMA should be taking care to respect the scatter-gather limitations of the appropriate device, as described by dma_parms. A DMA API implementation cannot feasibly split a scatterlist into *more* entries than originally passed, so it is not well defined what they should do when given a segment larger than the limit they are also required to respect. Conversely, devices which are less limited than the rather conservative defaults, or indeed have no limitations at all (e.g. GPUs with their own internal MMU), should be encouraged to set appropriate dma_parms, as they may get more efficient DMA mapping performance out of it. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> |
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Christoph Hellwig
|
f616ab59c2 |
dma-mapping: move the NEED_DMA_MAP_STATE config symbol to lib/Kconfig
This way we have one central definition of it, and user can select it as needed. Note that we now also always select it when CONFIG_DMA_API_DEBUG is select, which fixes some incorrect checks in a few network drivers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> |
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Christoph Hellwig
|
6e88628d03 |
dma-debug: remove CONFIG_HAVE_DMA_API_DEBUG
There is no arch specific code required for dma-debug, so there is no need to opt into the support either. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com> |
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Randy Dunlap
|
5f00ae0d3e |
lib/Kconfig.debug: Debug Lockups and Hangs: keep SOFTLOCKUP options together
Keep all of the SOFTLOCKUP kconfig symbols together (instead of
injecting the HARDLOCKUP symbols in the midst of them) so that the
config tools display them with their dependencies.
Tested with 'make {menuconfig/nconfig/gconfig/xconfig}'.
Link: http://lkml.kernel.org/r/6be2d9ed-4656-5b94-460d-7f051e2c7570@infradead.org
Fixes:
|
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Linus Torvalds
|
3b24b83763 |
Merge tag 'kbuild-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada: - add a shell script to get Clang version - improve portability of build scripts - drop always-enabled CONFIG_THIN_ARCHIVE and remove unused code - rename built-in.o which is now thin archive to built-in.a - process clean/build targets one by one to get along with -j option - simplify ld-option - improve building with CONFIG_TRIM_UNUSED_KSYMS - define KBUILD_MODNAME even for objects shared among multiple modules - avoid linking multiple instances of same objects from composite objects - move <linux/compiler_types.h> to c_flags to include it only for C files - clean-up various Makefiles * tag 'kbuild-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits) kbuild: get <linux/compiler_types.h> out of <linux/kconfig.h> kbuild: clean up link rule of composite modules kbuild: clean up archive rule of built-in.a kbuild: remove partial section mismatch detection for built-in.a net: liquidio: clean up Makefile for simpler composite object handling lib: zstd: clean up Makefile for simpler composite object handling kbuild: link $(real-obj-y) instead of $(obj-y) into built-in.a kbuild: rename real-objs-y/m to real-obj-y/m kbuild: move modname and modname-multi close to modname_flags kbuild: simplify modname calculation kbuild: fix modname for composite modules kbuild: define KBUILD_MODNAME even if multiple modules share objects kbuild: remove unnecessary $(subst $(obj)/, , ...) in modname-multi kbuild: Use ls(1) instead of stat(1) to obtain file size kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS kbuild: move include/config/ksym/* to include/ksym/* kbuild: move CONFIG_TRIM_UNUSED_KSYMS code unneeded for external module kbuild: restore autoksyms.h touch to the top Makefile kbuild: move 'scripts' target below kbuild: remove wrong 'touch' in adjust_autoksyms.sh ... |
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Linus Torvalds
|
f5a8eb632b |
Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pul removal of obsolete architecture ports from Arnd Bergmann:
"This removes the entire architecture code for blackfin, cris, frv,
m32r, metag, mn10300, score, and tile, including the associated device
drivers.
I have been working with the (former) maintainers for each one to
ensure that my interpretation was right and the code is definitely
unused in mainline kernels. Many had fond memories of working on the
respective ports to start with and getting them included in upstream,
but also saw no point in keeping the port alive without any users.
In the end, it seems that while the eight architectures are extremely
different, they all suffered the same fate: There was one company in
charge of an SoC line, a CPU microarchitecture and a software
ecosystem, which was more costly than licensing newer off-the-shelf
CPU cores from a third party (typically ARM, MIPS, or RISC-V). It
seems that all the SoC product lines are still around, but have not
used the custom CPU architectures for several years at this point. In
contrast, CPU instruction sets that remain popular and have actively
maintained kernel ports tend to all be used across multiple licensees.
[ See the new nds32 port merged in the previous commit for the next
generation of "one company in charge of an SoC line, a CPU
microarchitecture and a software ecosystem" - Linus ]
The removal came out of a discussion that is now documented at
https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
marking any ports as deprecated but remove them all at once after I
made sure that they are all unused. Some architectures (notably tile,
mn10300, and blackfin) are still being shipped in products with old
kernels, but those products will never be updated to newer kernel
releases.
After this series, we still have a few architectures without mainline
gcc support:
- unicore32 and hexagon both have very outdated gcc releases, but the
maintainers promised to work on providing something newer. At least
in case of hexagon, this will only be llvm, not gcc.
- openrisc, risc-v and nds32 are still in the process of finishing
their support or getting it added to mainline gcc in the first
place. They all have patched gcc-7.3 ports that work to some
degree, but complete upstream support won't happen before gcc-8.1.
Csky posted their first kernel patch set last week, their situation
will be similar
[ Palmer Dabbelt points out that RISC-V support is in mainline gcc
since gcc-7, although gcc-7.3.0 is the recommended minimum - Linus ]"
This really says it all:
2498 files changed, 95 insertions(+), 467668 deletions(-)
* tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits)
MAINTAINERS: UNICORE32: Change email account
staging: iio: remove iio-trig-bfin-timer driver
tty: hvc: remove tile driver
tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
serial: remove tile uart driver
serial: remove m32r_sio driver
serial: remove blackfin drivers
serial: remove cris/etrax uart drivers
usb: Remove Blackfin references in USB support
usb: isp1362: remove blackfin arch glue
usb: musb: remove blackfin port
usb: host: remove tilegx platform glue
pwm: remove pwm-bfin driver
i2c: remove bfin-twi driver
spi: remove blackfin related host drivers
watchdog: remove bfin_wdt driver
can: remove bfin_can driver
mmc: remove bfin_sdh driver
input: misc: remove blackfin rotary driver
input: keyboard: remove bf54x driver
...
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Waiman Long
|
19193bcad8 |
locking/Kconfig: Restructure the lock debugging menu
Two config options in the lock debugging menu that are probably the most frequently used, as far as I am concerned, is the PROVE_LOCKING and LOCK_STAT. From a UI perspective, they should be front and center. So these two options are now moved to the top of the lock debugging menu. The DEBUG_WW_MUTEX_SLOWPATH option is also added to the PROVE_LOCKING umbrella. Signed-off-by: Waiman Long <longman@redhat.com> Acked-by: Davidlohr Bueso <dave@stgolabs.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1522445280-7767-4-git-send-email-longman@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Waiman Long
|
f07cbebb6d |
locking/Kconfig: Add LOCK_DEBUGGING_SUPPORT to make it more readable
There are a couples of lock debugging Kconfig options that depends on the following support options: - TRACE_IRQFLAGS_SUPPORT - STACKTRACE_SUPPORT - LOCKDEP_SUPPORT That makes those lock debugging options harder to read and understand. So a new LOCK_DEBUGGING_SUPPORT option is added that is equivalent to the above three options together. That makes the Kconfig.debug file more readable. Signed-off-by: Waiman Long <longman@redhat.com> Acked-by: Davidlohr Bueso <dave@stgolabs.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1522445280-7767-3-git-send-email-longman@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Waiman Long
|
5149cbac42 |
locking/rwsem: Add DEBUG_RWSEMS to look for lock/unlock mismatches
For a rwsem, locking can either be exclusive or shared. The corresponding exclusive or shared unlock must be used. Otherwise, the protected data structures may get corrupted or the lock may be in an inconsistent state. In order to detect such anomaly, a new configuration option DEBUG_RWSEMS is added which can be enabled to look for such mismatches and print warnings that that happens. Signed-off-by: Waiman Long <longman@redhat.com> Acked-by: Davidlohr Bueso <dave@stgolabs.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1522445280-7767-2-git-send-email-longman@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Arnd Bergmann
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a687a53370 |
treewide: simplify Kconfig dependencies for removed archs
A lot of Kconfig symbols have architecture specific dependencies. In those cases that depend on architectures we have already removed, they can be omitted. Acked-by: Kalle Valo <kvalo@codeaurora.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Nicholas Piggin
|
f49821ee32 |
kbuild: rename built-in.o to built-in.a
Incremental linking is gone, so rename built-in.o to built-in.a, which is the usual extension for archive files. This patch does two things, first is a simple search/replace: git grep -l 'built-in\.o' | xargs sed -i 's/built-in\.o/built-in\.a/g' The second is to invert nesting of nested text manipulations to avoid filtering built-in.a out from libs-y2: -libs-y2 := $(filter-out %.a, $(patsubst %/, %/built-in.a, $(libs-y))) +libs-y2 := $(patsubst %/, %/built-in.a, $(filter-out %.a, $(libs-y))) Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> |
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David Howells
|
739d875dd6 |
mn10300: Remove the architecture
Remove the MN10300 arch as the hardware is defunct. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David Howells <dhowells@redhat.com> cc: Masahiro Yamada <yamada.masahiro@socionext.com> cc: linux-am33-list@redhat.com Signed-off-by: Arnd Bergmann <arnd@arndb.de> |