bka
22 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Robin Peng
|
a7d6f7d1a0 |
Merge android-4.9-q (4.9.196) into android-msm-pixel-4.9-lts
Merge 4.9.196 into android-4.9-q
Linux 4.9.196
NFC: fix attrs checks in netlink interface
* smack: use GFP_NOFS while holding inode_smack::smk_lock
security/smack/smack_access.c
security/smack/smack_lsm.c
* Smack: Don't ignore other bprm->unsafe flags if LSM_UNSAFE_PTRACE is set
security/smack/smack_lsm.c
* ipv6: Handle missing host route in __ipv6_ifa_notify
net/ipv6/addrconf.c
sch_cbq: validate TCA_CBQ_WRROPT to avoid crash
xen-netfront: do not use ~0U as error return value for xennet_fill_frags()
net/rds: Fix error handling in rds_ib_add_one()
sch_dsmark: fix potential NULL deref in dsmark_init()
qmi_wwan: add support for Cinterion CLS8 devices
nfc: fix memory leak in llcp_sock_bind()
* net: Unpublish sk from sk_reuseport_cb before call_rcu
net/core/sock.c
net: qlogic: Fix memory leak in ql_alloc_large_buffers
* net: ipv4: avoid mixed n_redirects and rate_tokens usage
net/ipv4/route.c
* ipv6: drop incoming packets having a v4mapped source address
net/ipv6/ip6_input.c
hso: fix NULL-deref on tty open
cxgb4:Fix out-of-bounds MSI-X info array access
* ANDROID: binder: synchronize_rcu() when using POLLFREE.
drivers/android/binder.c
* ANDROID: binder: remove waitqueue when thread exits.
drivers/android/binder.c
* kmemleak: increase DEBUG_KMEMLEAK_EARLY_LOG_SIZE default to 16K
lib/Kconfig.debug
ocfs2: wait for recovering done after direct unlock request
hypfs: Fix error number left in struct pointer member
* fat: work around race with userspace's read via blockdev while mounting
fs/fat/dir.c
fs/fat/fatent.c
ARM: 8903/1: ensure that usable memory in bank 0 starts from a PMD-aligned address
* security: smack: Fix possible null-pointer dereferences in smack_socket_sock_rcv_skb()
security/smack/smack_lsm.c
* HID: apple: Fix stuck function keys when using FN
drivers/hid/hid-apple.c
ARM: 8898/1: mm: Don't treat faults reported from cache maintenance as writes
PCI: tegra: Fix OF node reference leak
mfd: intel-lpss: Remove D3cold delay
MIPS: tlbex: Explicitly cast _PAGE_NO_EXEC to a boolean
* scsi: core: Reduce memory required for SCSI logging
drivers/scsi/scsi_logging.c
include/scsi/scsi_dbg.h
clk: at91: select parent if main oscillator or bypass is enabled
* arm64: fix unreachable code issue with cmpxchg
arch/arm64/include/asm/cmpxchg.h
powerpc/pseries: correctly track irq state in default idle
powerpc/64s/exception: machine check use correct cfar for late handler
drm/amdgpu/si: fix ASIC tests
vfio_pci: Restore original state on release
pinctrl: tegra: Fix write barrier placement in pmx_writel
powerpc/pseries/mobility: use cond_resched when updating device tree
powerpc/futex: Fix warning: 'oldval' may be used uninitialized in this function
powerpc/rtas: use device model APIs and serialization during LPM
clk: sirf: Don't reference clk_init_data after registration
clk: qoriq: Fix -Wunused-const-variable
ipmi_si: Only schedule continuously in the thread in maintenance mode
gpu: drm: radeon: Fix a possible null-pointer dereference in radeon_connector_set_property()
drm/radeon: Fix EEH during kexec
video: ssd1307fb: Start page range at page_offset
drm/bridge: tc358767: Increase AUX transfer length limit
Merge 4.9.195 into android-4.9-q
Linux 4.9.195
Btrfs: fix race setting up and completing qgroup rescan workers
btrfs: qgroup: Drop quota_root and fs_info parameters from update_qgroup_status_item
CIFS: Fix oplock handling for SMB 2.1+ protocols
CIFS: fix max ea value size
i2c: riic: Clear NACK in tend isr
* hwrng: core - don't wait on add_early_randomness()
drivers/char/hw_random/core.c
* quota: fix wrong condition in is_quota_modification()
include/linux/quotaops.h
* ext4: fix punch hole for inline_data file systems
fs/ext4/inode.c
* ext4: fix warning inside ext4_convert_unwritten_extents_endio
fs/ext4/extents.c
* /dev/mem: Bail out upon SIGKILL.
drivers/char/mem.c
* cfg80211: Purge frame registrations on iftype change
net/wireless/util.c
md/raid6: Set R5_ReadError when there is read failure on parity disk
btrfs: Relinquish CPUs in btrfs_compare_trees
Btrfs: fix use-after-free when using the tree modification log
* ovl: filter of trusted xattr results in audit
fs/overlayfs/inode.c
* memcg, kmem: do not fail __GFP_NOFAIL charges
mm/memcontrol.c
* regulator: Defer init completion for a while after late_initcall
drivers/regulator/core.c
* alarmtimer: Use EOPNOTSUPP instead of ENOTSUPP
kernel/time/alarmtimer.c
ARM: zynq: Use memcpy_toio instead of memcpy on smp bring-up
ASoC: Intel: Fix use of potentially uninitialized variable
ASoC: Intel: NHLT: Fix debug print format
media: sn9c20x: Add MSI MS-1039 laptop to flip_dmi_table
KVM: x86: Manually calculate reserved bits when loading PDPTRS
KVM: x86: set ctxt->have_exception in x86_decode_insn()
KVM: x86: always stop emulation on page fault
parisc: Disable HP HSC-PCI Cards to prevent kernel crash
* fuse: fix missing unlock_page in fuse_writepage()
fs/fuse/file.c
* printk: Do not lose last line in kmsg buffer dump
kernel/printk/printk.c
* printk: remove games with previous record flags
kernel/printk/printk.c
IB/hfi1: Define variables as unsigned long to fix KASAN warning
ALSA: firewire-tascam: check intermediate state of clock status and retry
ALSA: firewire-tascam: handle error code when getting current source of clock
PM / devfreq: passive: fix compiler warning
media: omap3isp: Set device on omap3isp subdevs
btrfs: extent-tree: Make sure we only allocate extents from block groups with the same type
ALSA: hda/realtek - Blacklist PC beep for Lenovo ThinkCentre M73/93
media: ttusb-dec: Fix info-leak in ttusb_dec_send_command()
drm/amd/powerplay/smu7: enforce minimal VBITimeout (v2)
e1000e: add workaround for possible stalled packet
libertas: Add missing sentinel at end of if_usb.c fw_table
* mmc: sdhci: Fix incorrect switch to HS mode
drivers/mmc/host/sdhci.c
ASoC: dmaengine: Make the pcm->name equal to pcm->id if the name is not set
s390/crypto: xts-aes-s390 fix extra run-time crypto self tests finding
* kprobes: Prohibit probing on BUG() and WARN() address
include/linux/bug.h
kernel/kprobes.c
dmaengine: ti: edma: Do not reset reserved paRAM slots
md/raid1: fail run raid1 array when active disk less than one
hwmon: (acpi_power_meter) Change log level for 'unsafe software power cap'
ACPI / PCI: fix acpi_pci_irq_enable() memory leak
ACPI: custom_method: fix memory leaks
ARM: dts: exynos: Mark LDO10 as always-on on Peach Pit/Pi Chromebooks
libtraceevent: Change users plugin directory
iommu/amd: Silence warnings under memory pressure
nvmet: fix data units read and written counters in SMART log
* arm64: kpti: ensure patched kernel text is fetched from PoU
arch/arm64/mm/proc.S
ACPI / CPPC: do not require the _PSD method
media: ov9650: add a sanity check
media: saa7134: fix terminology around saa7134_i2c_eeprom_md7134_gate()
media: cpia2_usb: fix memory leaks
media: saa7146: add cleanup in hexium_attach()
PM / devfreq: exynos-bus: Correct clock enable sequence
PM / devfreq: passive: Use non-devm notifiers
* media: dvb-core: fix a memory leak bug
drivers/media/dvb-core/dvbdev.c
media: hdpvr: add terminating 0 at end of string
media: radio/si470x: kill urb on error
ARM: dts: imx7d: cl-som-imx7: make ethernet work again
net: lpc-enet: fix printk format strings
media: omap3isp: Don't set streaming state on random subdevs
dmaengine: iop-adma: use correct printk format strings
media: gspca: zero usb_buf on error
efi: cper: print AER info of PCIe fatal error
md: don't set In_sync if array is frozen
md: don't call spare_active in md_reap_sync_thread if all member devices can't work
EDAC/altera: Use the proper type for the IRQ status bits
ia64:unwind: fix double free for mod->arch.init_unw_table
* ALSA: usb-audio: Skip bSynchAddress endpoint check if it is invalid
sound/usb/pcm.c
* base: soc: Export soc_device_register/unregister APIs
drivers/base/soc.c
media: iguanair: add sanity checks
ALSA: i2c: ak4xxx-adda: Fix a possible null pointer dereference in build_adc_controls()
ALSA: hda - Show the fatal CORB/RIRB error more clearly
x86/apic: Soft disable APIC before initializing it
x86/reboot: Always use NMI fallback when shutdown via reboot vector IPI fails
* sched/core: Fix CPU controller for !RT_GROUP_SCHED
kernel/sched/core.c
* sched/fair: Fix imbalance due to CPU affinity
kernel/sched/fair.c
media: hdpvr: Add device num check and handling
media: exynos4-is: fix leaked of_node references
media: dib0700: fix link error for dibx000_i2c_set_speed
leds: leds-lp5562 allow firmware files up to the maximum length
dmaengine: bcm2835: Print error in case setting DMA mask fails
ASoC: sgtl5000: Fix charge pump source assignment
regulator: lm363x: Fix off-by-one n_voltages for lm3632 ldo_vpos/ldo_vneg
ALSA: hda: Flush interrupts on disabling
nfc: enforce CAP_NET_RAW for raw sockets
ieee802154: enforce CAP_NET_RAW for raw sockets
ax25: enforce CAP_NET_RAW for raw sockets
appletalk: enforce CAP_NET_RAW for raw sockets
mISDN: enforce CAP_NET_RAW for raw sockets
* usbnet: sanity checking of packet sizes and device mtu
drivers/net/usb/usbnet.c
* usbnet: ignore endpoints with invalid wMaxPacketSize
drivers/net/usb/usbnet.c
skge: fix checksum byte order
* sch_netem: fix a divide by zero in tabledist()
net/sched/sch_netem.c
* ppp: Fix memory leak in ppp_write
drivers/net/ppp/ppp_generic.c
openvswitch: change type of UPCALL_PID attribute to NLA_UNSPEC
net: qrtr: Stop rx_worker before freeing node
net/phy: fix DP83865 10 Mbps HDX loopback disable function
macsec: drop skb sk before calling gro_cells_receive
* cdc_ncm: fix divide-by-zero caused by invalid wMaxPacketSize
drivers/net/usb/cdc_ncm.c
arcnet: provide a buffer big enough to actually receive packets
Bluetooth: btrtl: Additional Realtek 8822CE Bluetooth devices
xfs: don't crash on null attr fork xfs_bmapi_read
* drm: Flush output polling on shutdown
drivers/gpu/drm/drm_probe_helper.c
* f2fs: fix to do sanity check on segment bitmap of LFS curseg
fs/f2fs/segment.c
* Revert "f2fs: avoid out-of-range memory access"
fs/f2fs/segment.c
* f2fs: check all the data segments against all node ones
fs/f2fs/super.c
* irqchip/gic-v3-its: Fix LPI release for Multi-MSI devices
drivers/irqchip/irq-gic-v3-its.c
locking/lockdep: Add debug_locks check in __lock_downgrade()
* power: supply: sysfs: ratelimit property read error message
drivers/power/supply/power_supply_sysfs.c
mac80211: handle deauthentication/disassociation from TDLS peer
mac80211: Print text for disassociation reason
objtool: Clobber user CFLAGS variable
ALSA: hda - Add laptop imic fixup for ASUS M9V laptop
ASoC: fsl: Fix of-node refcount unbalance in fsl_ssi_probe_from_dt()
media: tvp5150: fix switch exit in set control handler
crypto: talitos - fix missing break in switch statement
mtd: cfi_cmdset_0002: Use chip_good() to retry in do_write_oneword()
HID: hidraw: Fix invalid read in hidraw_ioctl
HID: logitech: Fix general protection fault caused by Logitech driver
HID: prodikeys: Fix general protection fault during probe
IB/core: Add an unbound WQ type to the new CQ API
* Revert "Bluetooth: validate BLE connection interval updates"
net/bluetooth/hci_event.c
net/bluetooth/l2cap_core.c
* BACKPORT: block: annotate refault stalls from IO submission
block/bio.c
block/blk-core.c
include/linux/blk_types.h
* ANDROID: usb: gadget: Fix dependency for f_accessory
drivers/usb/gadget/Kconfig
Remove taskname from lowmemorykiller kill reports
Merge 4.9.194 into android-4.9-q
Linux 4.9.194
* net_sched: let qdisc_put() accept NULL pointer
net/sched/sch_generic.c
ARC: export "abort" for modules
media: technisat-usb2: break out of loop at end of buffer
floppy: fix usercopy direction
iommu/amd: Fix race in increase_address_space()
* keys: Fix missing null pointer check in request_key_auth_describe()
security/keys/request_key_auth.c
x86/uaccess: Don't leak the AC flags into __get_user() argument evaluation
dmaengine: ti: omap-dma: Add cleanup in omap_dma_probe()
dmaengine: ti: dma-crossbar: Fix a memory leak bug
net: seeq: Fix the function used to release some memory in an error handling path
tools/power turbostat: fix buffer overrun
perf/x86/amd/ibs: Fix sample bias for dispatched micro-ops
perf/x86/intel: Restrict period on Nehalem
sky2: Disable MSI on yet another ASUS boards (P6Xxxx)
ARM: 8901/1: add a criteria for pfn_valid of arm
cifs: Use kzfree() to zero out the password
cifs: set domainName when a domain-key is used in multiuser
NFSv2: Fix write regression
NFSv2: Fix eof handling
* netfilter: nf_conntrack_ftp: Fix debug output
net/netfilter/nf_conntrack_ftp.c
x86/apic: Fix arch_dynirq_lower_bound() bug for DT enabled machines
* r8152: Set memory to all 0xFFs on failed reg reads
drivers/net/usb/r8152.c
batman-adv: Only read OGM2 tvlv_len after buffer len check
ARM: 8874/1: mm: only adjust sections of valid mm structures
qed: Add cleanup in qed_slowpath_start()
* Kconfig: Fix the reference to the IDT77105 Phy driver in the description of ATM_NICSTAR_USE_IDT77105
drivers/atm/Kconfig
NFS: Fix initialisation of I/O result struct in nfs_pgio_rpcsetup
NFSv4: Fix return values for nfs4_file_open()
s390/bpf: use 32-bit index for tail calls
ARM: OMAP2+: Fix omap4 errata warning on other SoCs
s390/bpf: fix lcgr instruction encoding
ARM: OMAP2+: Fix missing SYSC_HAS_RESET_STATUS for dra7 epwmss
mwifiex: Fix three heap overflow at parsing element in cfg80211_ap_settings
tty/serial: atmel: reschedule TX after RX was started
serial: sprd: correct the wrong sequence of arguments
KVM: coalesced_mmio: add bounds checking
xen-netfront: do not assume sk_buff_head list is empty in error handling
x86/boot: Add missing bootparam that breaks boot on some platforms
powerpc/mm/radix: Use the right page size for vmemmap mapping
media: tm6000: double free if usb disconnect while streaming
* USB: usbcore: Fix slab-out-of-bounds bug during device reset
drivers/usb/core/config.c
x86/build: Add -Wnoaddress-of-packed-member to REALMODE_CFLAGS, to silence GCC9 build warning
* nvmem: Use the same permissions for eeprom as for nvmem
drivers/nvmem/core.c
drm/mediatek: mtk_drm_drv.c: Add of_node_put() before goto
crypto: talitos - HMAC SNOOP NO AFEU mode requires SW icv checking.
crypto: talitos - Do not modify req->cryptlen on decryption.
crypto: talitos - fix ECB algs ivsize
crypto: talitos - check data blocksize in ablkcipher.
crypto: talitos - fix CTR alg blocksize
crypto: talitos - check AES key size
* driver core: Fix use-after-free and double free on glue directory
drivers/base/core.c
mtd: rawnand: mtk: Fix wrongly assigned OOB buffer pointer issue
clk: rockchip: Don't yell about bad mmc phases when getting
MIPS: VDSO: Use same -m%-float cflag as the kernel proper
MIPS: VDSO: Prevent use of smp_processor_id()
KVM: nVMX: handle page fault in vmread
KVM: x86: work around leak of uninitialized stack contents
KVM: s390: Do not leak kernel stack data in the KVM_S390_INTERRUPT ioctl
* genirq: Prevent NULL pointer dereference in resend_irqs()
kernel/irq/resend.c
Btrfs: fix assertion failure during fsync and use of stale transaction
* gpio: fix line flag validation in lineevent_create
drivers/gpio/gpiolib.c
* gpio: fix line flag validation in linehandle_create
drivers/gpio/gpiolib.c
Revert "MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur"
* tun: fix use-after-free when register netdev failed
drivers/net/tun.c
tipc: add NULL pointer check before calling kfree_rcu
* tcp: fix tcp_ecn_withdraw_cwr() to clear TCP_ECN_QUEUE_CWR
net/ipv4/tcp_input.c
sctp: use transport pf_retrans in sctp_do_8_2_transport_strike
sctp: Fix the link time qualifier of 'sctp_ctrlsock_exit()'
sch_hhf: ensure quantum and hhf_non_hh_weight are non-zero
* net: gso: Fix skb_segment splat when splitting gso_size mangled skb having linear-headed frag_list
net/core/skbuff.c
* net: Fix null de-reference of device refcount
net/core/dev.c
isdn/capi: check message length in capi_write()
* ipv6: Fix the link time qualifier of 'ping_v6_proc_exit_net()'
net/ipv6/ping.c
* cdc_ether: fix rndis support for Mediatek based smartphones
drivers/net/usb/cdc_ether.c
* bridge/mdb: remove wrong use of NLM_F_MULTI
net/bridge/br_mdb.c
* ANDROID: regression introduced override_creds=off
fs/overlayfs/dir.c
* UPSTREAM: psi: get poll_work to run when calling poll syscall next time
kernel/sched/psi.c
* UPSTREAM: sched/psi: Do not require setsched permission from the trigger creator
kernel/sched/psi.c
* UPSTREAM: sched/psi: Reduce psimon FIFO priority
kernel/sched/psi.c
Merge 4.9.193 into android-4.9-q
Linux 4.9.193
vhost: make sure log_num < in_num
clk: s2mps11: Add used attribute to s2mps11_dt_match
scripts/decode_stacktrace: match basepath using shell prefix operator, not regex
batman-adv: Only read OGM tvlv_len after buffer len check
batman-adv: fix uninit-value in batadv_netlink_get_ifindex()
vhost/test: fix build for vhost test
* ip6: fix skb leak in ip6frag_expire_frag_queue()
include/net/ipv6_frag.h
* xfrm: clean up xfrm protocol checks
include/net/xfrm.h
net/key/af_key.c
net/xfrm/xfrm_state.c
net/xfrm/xfrm_user.c
powerpc/tm: Fix FP/VMX unavailable exceptions inside a transaction
drm/vmwgfx: Fix double free in vmw_recv_msg()
* sched/fair: Don't assign runtime for throttled cfs_rq
kernel/sched/fair.c
ALSA: hda/realtek - Fix overridden device-specific initialization
ALSA: hda - Fix potential endless loop at applying quirks
* ANDROID: Revert "ANDROID: sched: Disallow WALT with CFS bandwidth control"
init/Kconfig
* ANDROID: sched: WALT: Add support for CFS_BANDWIDTH
kernel/sched/fair.c
* ANDROID: sched: WALT: Refactor cumulative runnable average fixup
kernel/sched/deadline.c
kernel/sched/fair.c
kernel/sched/rt.c
kernel/sched/sched.h
kernel/sched/stop_task.c
kernel/sched/walt.c
kernel/sched/walt.h
Change-Id: Ifc17376212d89db44dc48d0963b25d93ff1cb978
Signed-off-by: Robin Peng <robinpeng@google.com>
|
||
|
Greg Kroah-Hartman
|
59aade02bb |
Merge 4.9.195 into android-4.9-q
Changes in 4.9.195 Revert "Bluetooth: validate BLE connection interval updates" IB/core: Add an unbound WQ type to the new CQ API HID: prodikeys: Fix general protection fault during probe HID: logitech: Fix general protection fault caused by Logitech driver HID: hidraw: Fix invalid read in hidraw_ioctl mtd: cfi_cmdset_0002: Use chip_good() to retry in do_write_oneword() crypto: talitos - fix missing break in switch statement media: tvp5150: fix switch exit in set control handler ASoC: fsl: Fix of-node refcount unbalance in fsl_ssi_probe_from_dt() ALSA: hda - Add laptop imic fixup for ASUS M9V laptop objtool: Clobber user CFLAGS variable mac80211: Print text for disassociation reason mac80211: handle deauthentication/disassociation from TDLS peer power: supply: sysfs: ratelimit property read error message locking/lockdep: Add debug_locks check in __lock_downgrade() irqchip/gic-v3-its: Fix LPI release for Multi-MSI devices f2fs: check all the data segments against all node ones Revert "f2fs: avoid out-of-range memory access" f2fs: fix to do sanity check on segment bitmap of LFS curseg drm: Flush output polling on shutdown xfs: don't crash on null attr fork xfs_bmapi_read Bluetooth: btrtl: Additional Realtek 8822CE Bluetooth devices arcnet: provide a buffer big enough to actually receive packets cdc_ncm: fix divide-by-zero caused by invalid wMaxPacketSize macsec: drop skb sk before calling gro_cells_receive net/phy: fix DP83865 10 Mbps HDX loopback disable function net: qrtr: Stop rx_worker before freeing node openvswitch: change type of UPCALL_PID attribute to NLA_UNSPEC ppp: Fix memory leak in ppp_write sch_netem: fix a divide by zero in tabledist() skge: fix checksum byte order usbnet: ignore endpoints with invalid wMaxPacketSize usbnet: sanity checking of packet sizes and device mtu mISDN: enforce CAP_NET_RAW for raw sockets appletalk: enforce CAP_NET_RAW for raw sockets ax25: enforce CAP_NET_RAW for raw sockets ieee802154: enforce CAP_NET_RAW for raw sockets nfc: enforce CAP_NET_RAW for raw sockets ALSA: hda: Flush interrupts on disabling regulator: lm363x: Fix off-by-one n_voltages for lm3632 ldo_vpos/ldo_vneg ASoC: sgtl5000: Fix charge pump source assignment dmaengine: bcm2835: Print error in case setting DMA mask fails leds: leds-lp5562 allow firmware files up to the maximum length media: dib0700: fix link error for dibx000_i2c_set_speed media: exynos4-is: fix leaked of_node references media: hdpvr: Add device num check and handling sched/fair: Fix imbalance due to CPU affinity sched/core: Fix CPU controller for !RT_GROUP_SCHED x86/reboot: Always use NMI fallback when shutdown via reboot vector IPI fails x86/apic: Soft disable APIC before initializing it ALSA: hda - Show the fatal CORB/RIRB error more clearly ALSA: i2c: ak4xxx-adda: Fix a possible null pointer dereference in build_adc_controls() media: iguanair: add sanity checks base: soc: Export soc_device_register/unregister APIs ALSA: usb-audio: Skip bSynchAddress endpoint check if it is invalid ia64:unwind: fix double free for mod->arch.init_unw_table EDAC/altera: Use the proper type for the IRQ status bits md: don't call spare_active in md_reap_sync_thread if all member devices can't work md: don't set In_sync if array is frozen efi: cper: print AER info of PCIe fatal error media: gspca: zero usb_buf on error dmaengine: iop-adma: use correct printk format strings media: omap3isp: Don't set streaming state on random subdevs net: lpc-enet: fix printk format strings ARM: dts: imx7d: cl-som-imx7: make ethernet work again media: radio/si470x: kill urb on error media: hdpvr: add terminating 0 at end of string media: dvb-core: fix a memory leak bug PM / devfreq: passive: Use non-devm notifiers PM / devfreq: exynos-bus: Correct clock enable sequence media: saa7146: add cleanup in hexium_attach() media: cpia2_usb: fix memory leaks media: saa7134: fix terminology around saa7134_i2c_eeprom_md7134_gate() media: ov9650: add a sanity check ACPI / CPPC: do not require the _PSD method arm64: kpti: ensure patched kernel text is fetched from PoU nvmet: fix data units read and written counters in SMART log iommu/amd: Silence warnings under memory pressure libtraceevent: Change users plugin directory ARM: dts: exynos: Mark LDO10 as always-on on Peach Pit/Pi Chromebooks ACPI: custom_method: fix memory leaks ACPI / PCI: fix acpi_pci_irq_enable() memory leak hwmon: (acpi_power_meter) Change log level for 'unsafe software power cap' md/raid1: fail run raid1 array when active disk less than one dmaengine: ti: edma: Do not reset reserved paRAM slots kprobes: Prohibit probing on BUG() and WARN() address s390/crypto: xts-aes-s390 fix extra run-time crypto self tests finding ASoC: dmaengine: Make the pcm->name equal to pcm->id if the name is not set mmc: sdhci: Fix incorrect switch to HS mode libertas: Add missing sentinel at end of if_usb.c fw_table e1000e: add workaround for possible stalled packet drm/amd/powerplay/smu7: enforce minimal VBITimeout (v2) media: ttusb-dec: Fix info-leak in ttusb_dec_send_command() ALSA: hda/realtek - Blacklist PC beep for Lenovo ThinkCentre M73/93 btrfs: extent-tree: Make sure we only allocate extents from block groups with the same type media: omap3isp: Set device on omap3isp subdevs PM / devfreq: passive: fix compiler warning ALSA: firewire-tascam: handle error code when getting current source of clock ALSA: firewire-tascam: check intermediate state of clock status and retry IB/hfi1: Define variables as unsigned long to fix KASAN warning printk: remove games with previous record flags printk: Do not lose last line in kmsg buffer dump fuse: fix missing unlock_page in fuse_writepage() parisc: Disable HP HSC-PCI Cards to prevent kernel crash KVM: x86: always stop emulation on page fault KVM: x86: set ctxt->have_exception in x86_decode_insn() KVM: x86: Manually calculate reserved bits when loading PDPTRS media: sn9c20x: Add MSI MS-1039 laptop to flip_dmi_table ASoC: Intel: NHLT: Fix debug print format ASoC: Intel: Fix use of potentially uninitialized variable ARM: zynq: Use memcpy_toio instead of memcpy on smp bring-up alarmtimer: Use EOPNOTSUPP instead of ENOTSUPP regulator: Defer init completion for a while after late_initcall memcg, kmem: do not fail __GFP_NOFAIL charges ovl: filter of trusted xattr results in audit Btrfs: fix use-after-free when using the tree modification log btrfs: Relinquish CPUs in btrfs_compare_trees md/raid6: Set R5_ReadError when there is read failure on parity disk cfg80211: Purge frame registrations on iftype change /dev/mem: Bail out upon SIGKILL. ext4: fix warning inside ext4_convert_unwritten_extents_endio ext4: fix punch hole for inline_data file systems quota: fix wrong condition in is_quota_modification() hwrng: core - don't wait on add_early_randomness() i2c: riic: Clear NACK in tend isr CIFS: fix max ea value size CIFS: Fix oplock handling for SMB 2.1+ protocols btrfs: qgroup: Drop quota_root and fs_info parameters from update_qgroup_status_item Btrfs: fix race setting up and completing qgroup rescan workers Linux 4.9.195 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
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Masami Hiramatsu
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d641e70f40 |
kprobes: Prohibit probing on BUG() and WARN() address
[ Upstream commit e336b4027775cb458dc713745e526fa1a1996b2a ] Since BUG() and WARN() may use a trap (e.g. UD2 on x86) to get the address where the BUG() has occurred, kprobes can not do single-step out-of-line that instruction. So prohibit probing on such address. Without this fix, if someone put a kprobe on WARN(), the kernel will crash with invalid opcode error instead of outputing warning message, because kernel can not find correct bug address. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: David S . Miller <davem@davemloft.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Naveen N . Rao <naveen.n.rao@linux.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/156750890133.19112.3393666300746167111.stgit@devnote2 Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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Petri Gynther
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82fb8eb1d4 |
Merge android-4.9 into android-msm-bluecross-4.9-lts
Merge android-4.9 common kernel into B1/C1 kernel LTS staging branch.
Since android-msm-bluecross-4.9-lts is currently merged to LTS 4.9.150,
I deliberately chose to merge only up to:
commit
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Kees Cook
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eb235bf109 |
UPSTREAM: bug: switch data corruption check to __must_check
(cherry-picked from 85caa95b9f19bb3a26d7e025d1134760b69e0c40) The CHECK_DATA_CORRUPTION() macro was designed to have callers do something meaningful/protective on failure. However, using "return false" in the macro too strictly limits the design patterns of callers. Instead, let callers handle the logic test directly, but make sure that the result IS checked by forcing __must_check (which appears to not be able to be used directly on macro expressions). Change-Id: I23a87276163e3760c6eba44d6072e495fd8ec65d Link: http://lkml.kernel.org/r/20170206204547.GA125312@beast Signed-off-by: Kees Cook <keescook@chromium.org> Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Satya Tangirala <satyat@google.com> |
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Kees Cook
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8fb63b1dc6 |
UPSTREAM: bug: Provide toggle for BUG on data corruption
(cherry-picked from de54ebbe26bb371a6f1fbc0593372232f04e3107)
The kernel checks for cases of data structure corruption under some
CONFIGs (e.g. CONFIG_DEBUG_LIST). When corruption is detected, some
systems may want to BUG() immediately instead of letting the system run
with known corruption. Usually these kinds of manipulation primitives can
be used by security flaws to gain arbitrary memory write control. This
provides a new config CONFIG_BUG_ON_DATA_CORRUPTION and a corresponding
macro CHECK_DATA_CORRUPTION for handling these situations. Notably, even
if not BUGing, the kernel should not continue processing the corrupted
structure.
This is inspired by similar hardening by Syed Rameez Mustafa in MSM
kernels, and in PaX and Grsecurity, which is likely in response to earlier
removal of the BUG calls in commit
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Ian Abbott
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3dcc0bca10 |
BACKPORT: bug: split BUILD_BUG stuff out into <linux/build_bug.h>
Including <linux/bug.h> pulls in a lot of bloat from <asm/bug.h> and <asm-generic/bug.h> that is not needed to call the BUILD_BUG() family of macros. Split them out into their own header, <linux/build_bug.h>. Also correct some checkpatch.pl errors for the BUILD_BUG_ON_ZERO() and BUILD_BUG_ON_NULL() macros by adding parentheses around the bitfield widths that begin with a minus sign. Link: http://lkml.kernel.org/r/20170525120316.24473-6-abbotti@mev.co.uk Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Acked-by: Michal Nazarewicz <mina86@mina86.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Bug: 67861121 (cherry picked from commit bc6245e5efd70c41eaf9334b1b5e646745cb0fb3) Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Change-Id: Iee483ac4fdba74f8ebdfbafab2eb7f68df932781 |
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Syed Rameez Mustafa
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cf9c1e45e7 |
kernel/lib: add additional debug capabilities for data corruption
Data corruptions in the kernel often end up in system crashes that are easier to debug closer to the time of detection. Specifically, if we do not panic immediately after lock or list corruptions have been detected, the problem context is lost in the ensuing system mayhem. Add support for allowing system crash immediately after such corruptions are detected. The CONFIG option controls the enabling/disabling of the feature. Change-Id: I9b2eb62da506a13007acff63e85e9515145909ff Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org> Signed-off-by: Patrick Daly <pdaly@codeaurora.org> |
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Jakub Kicinski
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3e9b3112ec |
add basic register-field manipulation macros
Common approach to accessing register fields is to define
structures or sets of macros containing mask and shift pair.
Operations on the register are then performed as follows:
field = (reg >> shift) & mask;
reg &= ~(mask << shift);
reg |= (field & mask) << shift;
Defining shift and mask separately is tedious. Ivo van Doorn
came up with an idea of computing them at compilation time
based on a single shifted mask (later refined by Felix) which
can be used like this:
#define REG_FIELD 0x000ff000
field = FIELD_GET(REG_FIELD, reg);
reg &= ~REG_FIELD;
reg |= FIELD_PREP(REG_FIELD, field);
FIELD_{GET,PREP} macros take care of finding out what the
appropriate shift is based on compilation time ffs operation.
GENMASK can be used to define registers (which is usually
less error-prone and easier to match with datasheets).
This approach is the most convenient I've seen so to limit code
multiplication let's move the macros to a global header file.
Attempts to use static inlines instead of macros failed due
to false positive triggering of BUILD_BUG_ON()s, especially with
GCC < 6.0.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dinan Gunawardena <dinan.gunawardena@netronome.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Kirill A. Shutemov
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ff20c2e0ac |
mm: Some arch may want to use HPAGE_PMD related values as variables
With next generation power processor, we are having a new mmu model [1] that require us to maintain a different linux page table format. Inorder to support both current and future ppc64 systems with a single kernel we need to make sure kernel can select between different page table format at runtime. With the new MMU (radix MMU) added, we will have two different pmd hugepage size 16MB for hash model and 2MB for Radix model. Hence make HPAGE_PMD related values as a variable. Actual conversion of HPAGE_PMD to a variable for ppc64 happens in a followup patch. [1] http://ibm.biz/power-isa3 (Needs registration). Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Daniel Santos
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9a8ab1c399 |
bug.h, compiler.h: introduce compiletime_assert & BUILD_BUG_ON_MSG
Introduce compiletime_assert to compiler.h, which moves the details of how to break a build and emit an error message for a specific compiler to the headers where these details should be. Following in the tradition of the POSIX assert macro, compiletime_assert creates a build-time error when the supplied condition is *false*. Next, we add BUILD_BUG_ON_MSG to bug.h which simply wraps compiletime_assert, inverting the logic, so that it fails when the condition is *true*, consistent with the language "build bug on." This macro allows you to specify the error message you want emitted when the supplied condition is true. Finally, we remove all other code from bug.h that mucks with these details (BUILD_BUG & BUILD_BUG_ON), and have them all call BUILD_BUG_ON_MSG. This not only reduces source code bloat, but also prevents the possibility of code being changed for one macro and not for the other (which was previously the case for BUILD_BUG and BUILD_BUG_ON). Since __compiletime_error_fallback is now only used in compiler.h, I'm considering it a private macro and removing the double negation that's now extraneous. [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Daniel Santos <daniel.santos@pobox.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: David Rientjes <rientjes@google.com> Cc: Joe Perches <joe@perches.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Daniel Santos
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c361d3e543 |
compiler.h, bug.h: prevent double error messages with BUILD_BUG{,_ON}
Prior to the introduction of __attribute__((error("msg"))) in gcc 4.3,
creating compile-time errors required a little trickery.
BUILD_BUG{,_ON} uses this attribute when available to generate
compile-time errors, but also uses the negative-sized array trick for
older compilers, resulting in two error messages in some cases. The
reason it's "some" cases is that as of gcc 4.4, the negative-sized array
will not create an error in some situations, like inline functions.
This patch replaces the negative-sized array code with the new
__compiletime_error_fallback() macro which expands to the same thing
unless the the error attribute is available, in which case it expands to
do{}while(0), resulting in exactly one compile-time error on all
versions of gcc.
Note that we are not changing the negative-sized array code for the
unoptimized version of BUILD_BUG_ON, since it has the potential to catch
problems that would be disabled in later versions of gcc were
__compiletime_error_fallback used. The reason is that that an
unoptimized build can't always remove calls to an error-attributed
function call (like we are using) that should effectively become dead
code if it were optimized. However, using a negative-sized array with a
similar value will not result in an false-positive (error). The only
caveat being that it will also fail to catch valid conditions, which we
should be expecting in an unoptimized build anyway.
Signed-off-by: Daniel Santos <daniel.santos@pobox.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Joe Perches <joe@perches.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Daniel Santos
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a3ccc497cd |
bug.h: make BUILD_BUG_ON generate compile-time error
Negative sized arrays wont create a compile-time error in some cases starting with gcc 4.4 (e.g., inlined functions), but gcc 4.3 introduced the error function attribute that will. This patch modifies BUILD_BUG_ON to behave like BUILD_BUG already does, using the error function attribute so that you don't have to build the entire kernel to discover that you have a problem, and then enjoy trying to track it down from a link-time error. Also, we are only including asm/bug.h and then expecting that linux/compiler.h will eventually be included to define __linktime_error (used in BUILD_BUG_ON). This patch includes it directly for clarity and to avoid the possibility of changes in <arch>/*/include/asm/bug.h being changed or not including linux/compiler.h for some reason. Signed-off-by: Daniel Santos <daniel.santos@pobox.com> Acked-by: Borislav Petkov <bp@alien8.de> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Rientjes <rientjes@google.com> Cc: Joe Perches <joe@perches.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Daniel Santos
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1d6a0d19c8 |
bug.h: prevent double evaulation of `condition' in BUILD_BUG_ON
When calling BUILD_BUG_ON in an optimized build using gcc 4.3 and later, the condition will be evaulated twice, possibily with side-effects. This patch eliminates that error. [akpm@linux-foundation.org: tweak code layout] Signed-off-by: Daniel Santos <daniel.santos@pobox.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: David Rientjes <rientjes@google.com> Cc: Joe Perches <joe@perches.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Daniel Santos
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ca623c914e |
bug.h: fix BUILD_BUG_ON macro in __CHECKER__
When __CHECKER__ is defined, we disable all of the BUILD_BUG.* macros. However, both BUILD_BUG_ON_NOT_POWER_OF_2 and BUILD_BUG_ON was evaluating to nothing in this case, and we want (0) since this is a function-like macro that will be followed by a semicolon. Signed-off-by: Daniel Santos <daniel.santos@pobox.com> Acked-by: Borislav Petkov <bp@alien8.de> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Rientjes <rientjes@google.com> Cc: Joe Perches <joe@perches.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Daniel Santos
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6ae8d04871 |
compiler{,-gcc4}.h, bug.h: Remove duplicate macros
__linktime_error() does the same thing as __compiletime_error() and is only used in bug.h. Since the macro defines a function attribute that will cause a failure at compile-time (not link-time), it makes more sense to keep __compiletime_error(), which is also neatly mated with __compiletime_warning(). Signed-off-by: Daniel Santos <daniel.santos@pobox.com> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Borislav Petkov <bp@alien8.de> Cc: Andi Kleen <ak@linux.intel.com> Cc: Joe Perches <joe@perches.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Tushar Behera
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c5782e9f5a |
include/linux/bug.h: fix sparse warning related to BUILD_BUG_ON_INVALID
Commit
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Konstantin Khlebnikov
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baf05aa927 |
bug: introduce BUILD_BUG_ON_INVALID() macro
Sometimes we want to check some expressions correctness at compile time. "(void)(e);" or "if (e);" can be dangerous if the expression has side-effects, and gcc sometimes generates a lot of code, even if the expression has no effect. This patch introduces macro BUILD_BUG_ON_INVALID() for such checks, it forces a compilation error if expression is invalid without any extra code. [Cast to "long" required because sizeof does not work for bit-fields.] Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Paul Gortmaker
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35edd9103c |
bug: consolidate BUILD_BUG_ON with other bug code
The support for BUILD_BUG in linux/kernel.h predates the
addition of linux/bug.h -- with this chunk off separate,
you can run into situations where a person gets a compile
fail even when they've included linux/bug.h, like this:
CC lib/string.o
lib/string.c: In function 'strlcat':
lib/string.c:225:2: error: implicit declaration of function 'BUILD_BUG_ON'
make[2]: *** [lib/string.o] Error 1
$
$ grep linux/bug.h lib/string.c
#include <linux/bug.h>
$
Since the above violates the principle of least surprise, move
the BUG chunks from kernel.h to bug.h so it is all together.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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Andrew Morton
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0d9c25dde8 |
headers: move module_bug_finalize()/module_bug_cleanup() definitions into module.h
They're in linux/bug.h at present, which causes include order tangles. In particular, linux/bug.h cannot be used by linux/atomic.h because, according to Nikanth: linux/bug.h pulls in linux/module.h => linux/spinlock.h => asm/spinlock.h (which uses atomic_inc) => asm/atomic.h. bug.h is a pretty low-level thing and module.h is a higher-level thing, IMO. Cc: Nikanth Karthikesan <knikanth@novell.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Heiko Carstens
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608e261968 |
generic bug: use show_regs() instead of dump_stack()
The current generic bug implementation has a call to dump_stack() in case a WARN_ON(whatever) gets hit. Since report_bug(), which calls dump_stack(), gets called from an exception handler we can do better: just pass the pt_regs structure to report_bug() and pass it to show_regs() in case of a warning. This will give more debug informations like register contents, etc... In addition this avoids some pointless lines that dump_stack() emits, since it includes a stack backtrace of the exception handler which is of no interest in case of a warning. E.g. on s390 the following lines are currently always present in a stack backtrace if dump_stack() gets called from report_bug(): [<000000000001517a>] show_trace+0x92/0xe8) [<0000000000015270>] show_stack+0xa0/0xd0 [<00000000000152ce>] dump_stack+0x2e/0x3c [<0000000000195450>] report_bug+0x98/0xf8 [<0000000000016cc8>] illegal_op+0x1fc/0x21c [<00000000000227d6>] sysc_return+0x0/0x10 Acked-by: Jeremy Fitzhardinge <jeremy@goop.org> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Andi Kleen <ak@suse.de> Cc: Kyle McMartin <kyle@parisc-linux.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jeremy Fitzhardinge
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7664c5a1da |
[PATCH] Generic BUG implementation
This patch adds common handling for kernel BUGs, for use by architectures as they wish. The code is derived from arch/powerpc. The advantages of having common BUG handling are: - consistent BUG reporting across architectures - shared implementation of out-of-line file/line data - implement CONFIG_DEBUG_BUGVERBOSE consistently This means that in inline impact of BUG is just the illegal instruction itself, which is an improvement for i386 and x86-64. A BUG is represented in the instruction stream as an illegal instruction, which has file/line information associated with it. This extra information is stored in the __bug_table section in the ELF file. When the kernel gets an illegal instruction, it first confirms it might possibly be from a BUG (ie, in kernel mode, the right illegal instruction). It then calls report_bug(). This searches __bug_table for a matching instruction pointer, and if found, prints the corresponding file/line information. If report_bug() determines that it wasn't a BUG which caused the trap, it returns BUG_TRAP_TYPE_NONE. Some architectures (powerpc) implement WARN using the same mechanism; if the illegal instruction was the result of a WARN, then report_bug(Q) returns CONFIG_DEBUG_BUGVERBOSE; otherwise it returns BUG_TRAP_TYPE_BUG. lib/bug.c keeps a list of loaded modules which can be searched for __bug_table entries. The architecture must call module_bug_finalize()/module_bug_cleanup() from its corresponding module_finalize/cleanup functions. Unsetting CONFIG_DEBUG_BUGVERBOSE will reduce the kernel size by some amount. At the very least, filename and line information will not be recorded for each but, but architectures may decide to store no extra information per BUG at all. Unfortunately, gcc doesn't have a general way to mark an asm() as noreturn, so architectures will generally have to include an infinite loop (or similar) in the BUG code, so that gcc knows execution won't continue beyond that point. gcc does have a __builtin_trap() operator which may be useful to achieve the same effect, unfortunately it cannot be used to actually implement the BUG itself, because there's no way to get the instruction's address for use in generating the __bug_table entry. [randy.dunlap@oracle.com: Handle BUG=n, GENERIC_BUG=n to prevent build errors] [bunk@stusta.de: include/linux/bug.h must always #include <linux/module.h] Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Andi Kleen <ak@muc.de> Cc: Hugh Dickens <hugh@veritas.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |