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Author | SHA1 | Message | Date | |
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Luca Stefani
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f0bb324d50 |
This is the 3.10.98 stable release
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LuK1337
|
fc9499e55a |
Import latest Samsung release
* Package version: T713XXU2BQCO Change-Id: I293d9e7f2df458c512d59b7a06f8ca6add610c99 |
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Arnd Bergmann
|
710636bc7a |
tracing: Fix freak link error caused by branch tracer
commit b33c8ff4431a343561e2319f17c14286f2aa52e2 upstream.
In my randconfig tests, I came across a bug that involves several
components:
* gcc-4.9 through at least 5.3
* CONFIG_GCOV_PROFILE_ALL enabling -fprofile-arcs for all files
* CONFIG_PROFILE_ALL_BRANCHES overriding every if()
* The optimized implementation of do_div() that tries to
replace a library call with an division by multiplication
* code in drivers/media/dvb-frontends/zl10353.c doing
u32 adc_clock = 450560; /* 45.056 MHz */
if (state->config.adc_clock)
adc_clock = state->config.adc_clock;
do_div(value, adc_clock);
In this case, gcc fails to determine whether the divisor
in do_div() is __builtin_constant_p(). In particular, it
concludes that __builtin_constant_p(adc_clock) is false, while
__builtin_constant_p(!!adc_clock) is true.
That in turn throws off the logic in do_div() that also uses
__builtin_constant_p(), and instead of picking either the
constant- optimized division, and the code in ilog2() that uses
__builtin_constant_p() to figure out whether it knows the answer at
compile time. The result is a link error from failing to find
multiple symbols that should never have been called based on
the __builtin_constant_p():
dvb-frontends/zl10353.c:138: undefined reference to `____ilog2_NaN'
dvb-frontends/zl10353.c:138: undefined reference to `__aeabi_uldivmod'
ERROR: "____ilog2_NaN" [drivers/media/dvb-frontends/zl10353.ko] undefined!
ERROR: "__aeabi_uldivmod" [drivers/media/dvb-frontends/zl10353.ko] undefined!
This patch avoids the problem by changing __trace_if() to check
whether the condition is known at compile-time to be nonzero, rather
than checking whether it is actually a constant.
I see this one link error in roughly one out of 1600 randconfig builds
on ARM, and the patch fixes all known instances.
Link: http://lkml.kernel.org/r/1455312410-1058841-1-git-send-email-arnd@arndb.de
Acked-by: Nicolas Pitre <nico@linaro.org>
Fixes:
|
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Ian Maund
|
8b08aa9e75 |
This is the 3.10.67 stable release
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJUyuGRAAoJEDjbvchgkmk+7EwQALYPOeh+AManQFB1MQvFuOgZ /4ulpjhGXw/RPTKHMeyHo8vRfUhMOx8UPF62uql+g1l9b/Zt2bs6qXu4QcxRRsQc trSTUpi+U14y1hkgqOVOcFYP2ZaTjNEBQgLJ4eGn46CliLqme+rfoyRYm2GXzcR4 6cbSAr3mufdFIpi9/8Dn62Gv0aws5lIv3qkHJXznyuux3tisPT5y6Ux2KJoivPn/ SqADtRpwo+7lTjl15fE++9AqNsGMorV6toT2OO/7nXP+824psInKLmREAT2qC99b BG61vcYdxOuHtzmwrvCf1jSRjxhvZT0j2xhBr/vCKcxy08AT0vDv68zrV1r6TIuu U7/CKXtFBY95cjfnkTLJuswBSuIA/+sQHV6DaddH0V8fcZ6rQMLrblQ9ZcFFFkmT 2SG6lmlXqZvcEKYGMnL/Dcow1rkRhB5stiGgTkYxjiRSRpzAHISRJ/GGpsT+rRqK HpBs5p9JshvRl7RWKwAu+DNGaEK1X/WYxc4/jw6dZFWX7lEWSMIPlr9zXgZCZ39y V6lV1VVlT9/CSs1swKHUyhHHehlFsnIlQ6Fkiycr/KkuqBLs92Hyb7WhpVa819yX osXdxSm6J54skiOLKYpBWHpnY09Tc+p28VEfMpErTExgp2oE8F34K7kdhoQPQb97 2mHiXNa+J4CLUNQ+sRmw =HDBo -----END PGP SIGNATURE----- Merge commit 'v3.10.67' into msm-3.10 This merge brings us up to date with upstream kernel.org tag v3.10.67. It also contains changes to allow forbidden warnings introduced in the commit 'core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errors'. Once upstream has corrected these warnings, the changes to scripts/gcc-wrapper.py, in this commit, can be reverted. * commit 'v3.10.67' (915 commits) Linux 3.10.67 md/raid5: fetch_block must fetch all the blocks handle_stripe_dirtying wants. ext4: fix warning in ext4_da_update_reserve_space() quota: provide interface for readding allocated space into reserved space crypto: add missing crypto module aliases crypto: include crypto- module prefix in template crypto: prefix module autoloading with "crypto-" drbd: merge_bvec_fn: properly remap bvm->bi_bdev Revert "swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single" ipvs: uninitialized data with IP_VS_IPV6 KEYS: close race between key lookup and freeing sata_dwc_460ex: fix resource leak on error path x86/asm/traps: Disable tracing and kprobes in fixup_bad_iret and sync_regs x86, tls: Interpret an all-zero struct user_desc as "no segment" x86, tls, ldt: Stop checking lm in LDT_empty x86/tsc: Change Fast TSC calibration failed from error to info x86, hyperv: Mark the Hyper-V clocksource as being continuous clocksource: exynos_mct: Fix bitmask regression for exynos4_mct_write can: dev: fix crtlmode_supported check bus: mvebu-mbus: fix support of MBus window 13 ARM: dts: imx25: Fix PWM "per" clocks time: adjtimex: Validate the ADJ_FREQUENCY values time: settimeofday: Validate the values of tv from user dm cache: share cache-metadata object across inactive and active DM tables ipr: wait for aborted command responses drm/i915: Fix mutex->owner inspection race under DEBUG_MUTEXES scripts/recordmcount.pl: There is no -m32 gcc option on Super-H anymore ALSA: usb-audio: Add mic volume fix quirk for Logitech Webcam C210 libata: prevent HSM state change race between ISR and PIO pinctrl: Fix two deadlocks gpio: sysfs: fix gpio device-attribute leak gpio: sysfs: fix gpio-chip device-attribute leak Linux 3.10.66 s390/3215: fix tty output containing tabs s390/3215: fix hanging console issue fsnotify: next_i is freed during fsnotify_unmount_inodes. netfilter: ipset: small potential read beyond the end of buffer mmc: sdhci: Fix sleep in atomic after inserting SD card LOCKD: Fix a race when initialising nlmsvc_timeout x86, um: actually mark system call tables readonly um: Skip futex_atomic_cmpxchg_inatomic() test decompress_bunzip2: off by one in get_next_block() ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances ARM: omap5/dra7xx: Fix frequency typos ARM: clk-imx6q: fix video divider for rev T0 1.0 ARM: imx6q: drop unnecessary semicolon ARM: dts: imx25: Fix the SPI1 clocks Input: I8042 - add Acer Aspire 7738 to the nomux list Input: i8042 - reset keyboard to fix Elantech touchpad detection can: kvaser_usb: Don't send a RESET_CHIP for non-existing channels can: kvaser_usb: Reset all URB tx contexts upon channel close can: kvaser_usb: Don't free packets when tight on URBs USB: keyspan: fix null-deref at probe USB: cp210x: add IDs for CEL USB sticks and MeshWorks devices USB: cp210x: fix ID for production CEL MeshConnect USB Stick usb: dwc3: gadget: Stop TRB preparation after limit is reached usb: dwc3: gadget: Fix TRB preparation during SG OHCI: add a quirk for ULi M5237 blocking on reset gpiolib: of: Correct error handling in of_get_named_gpiod_flags NFSv4.1: Fix client id trunking on Linux ftrace/jprobes/x86: Fix conflict between jprobes and function graph tracing vfio-pci: Fix the check on pci device type in vfio_pci_probe() uvcvideo: Fix destruction order in uvc_delete() smiapp: Take mutex during PLL update in sensor initialisation af9005: fix kernel panic on init if compiled without IR smiapp-pll: Correct clock debug prints video/logo: prevent use of logos after they have been freed storvsc: ring buffer failures may result in I/O freeze iscsi-target: Fail connection on short sendmsg writes hp_accel: Add support for HP ZBook 15 cfg80211: Fix 160 MHz channels with 80+80 and 160 MHz drivers ARC: [nsimosci] move peripherals to match model to FPGA drm/i915: Force the CS stall for invalidate flushes drm/i915: Invalidate media caches on gen7 drm/radeon: properly filter DP1.2 4k modes on non-DP1.2 hw drm/radeon: check the right ring in radeon_evict_flags() drm/vmwgfx: Fix fence event code enic: fix rx skb checksum alx: fix alx_poll() tcp: Do not apply TSO segment limit to non-TSO packets tg3: tg3_disable_ints using uninitialized mailbox value to disable interrupts netlink: Don't reorder loads/stores before marking mmap netlink frame as available netlink: Always copy on mmap TX. Linux 3.10.65 mm: Don't count the stack guard page towards RLIMIT_STACK mm: propagate error from stack expansion even for guard page mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process being killed perf session: Do not fail on processing out of order event perf: Fix events installation during moving group perf/x86/intel/uncore: Make sure only uncore events are collected Btrfs: don't delay inode ref updates during log replay ARM: mvebu: disable I/O coherency on non-SMP situations on Armada 370/375/38x/XP scripts/kernel-doc: don't eat struct members with __aligned nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races nfsd4: fix xdr4 inclusion of escaped char fs: nfsd: Fix signedness bug in compare_blob serial: samsung: wait for transfer completion before clock disable writeback: fix a subtle race condition in I_DIRTY clearing cdc-acm: memory leak in error case genhd: check for int overflow in disk_expand_part_tbl() USB: cdc-acm: check for valid interfaces ALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC codecs ALSA: hda - using uninitialized data ALSA: usb-audio: extend KEF X300A FU 10 tweak to Arcam rPAC driver core: Fix unbalanced device reference in drivers_probe x86, vdso: Use asm volatile in __getcpu x86_64, vdso: Fix the vdso address randomization algorithm HID: Add a new id 0x501a for Genius MousePen i608X HID: add battery quirk for USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO keyboard HID: roccat: potential out of bounds in pyra_sysfs_write_settings() HID: i2c-hid: prevent buffer overflow in early IRQ HID: i2c-hid: fix race condition reading reports iommu/vt-d: Fix an off-by-one bug in __domain_mapping() UBI: Fix double free after do_sync_erase() UBI: Fix invalid vfree() pstore-ram: Allow optional mapping with pgprot_noncached pstore-ram: Fix hangs by using write-combine mappings PCI: Restore detection of read-only BARs ASoC: dwc: Ensure FIFOs are flushed to prevent channel swap ASoC: max98090: Fix ill-defined sidetone route ASoC: sigmadsp: Refuse to load firmware files with a non-supported version ath5k: fix hardware queue index assignment swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single can: peak_usb: fix memset() usage can: peak_usb: fix cleanup sequence order in case of error during init ath9k: fix BE/BK queue order ath9k_hw: fix hardware queue allocation ocfs2: fix journal commit deadlock Linux 3.10.64 Btrfs: fix fs corruption on transaction abort if device supports discard Btrfs: do not move em to modified list when unpinning eCryptfs: Remove buggy and unnecessary write in file name decode routine eCryptfs: Force RO mount when encrypted view is enabled udf: Verify symlink size before loading it exit: pidns: alloc_pid() leaks pid_namespace if child_reaper is exiting ncpfs: return proper error from NCP_IOC_SETROOT ioctl crypto: af_alg - fix backlog handling userns: Unbreak the unprivileged remount tests userns: Allow setting gid_maps without privilege when setgroups is disabled userns: Add a knob to disable setgroups on a per user namespace basis userns: Rename id_map_mutex to userns_state_mutex userns: Only allow the creator of the userns unprivileged mappings userns: Check euid no fsuid when establishing an unprivileged uid mapping userns: Don't allow unprivileged creation of gid mappings userns: Don't allow setgroups until a gid mapping has been setablished userns: Document what the invariant required for safe unprivileged mappings. groups: Consolidate the setgroups permission checks umount: Disallow unprivileged mount force mnt: Update unprivileged remount test mnt: Implicitly add MNT_NODEV on remount when it was implicitly added by mount mac80211: free management frame keys when removing station mac80211: fix multicast LED blinking and counter KEYS: Fix stale key registration at error path isofs: Fix unchecked printing of ER records x86/tls: Don't validate lm in set_thread_area() after all dm space map metadata: fix sm_bootstrap_get_nr_blocks() dm bufio: fix memleak when using a dm_buffer's inline bio nfs41: fix nfs4_proc_layoutget error handling megaraid_sas: corrected return of wait_event from abort frame path mmc: block: add newline to sysfs display of force_ro mfd: tc6393xb: Fail ohci suspend if full state restore is required md/bitmap: always wait for writes on unplug. x86, kvm: Clear paravirt_enabled on KVM guests for espfix32's benefit x86_64, switch_to(): Load TLS descriptors before switching DS and ES x86/tls: Disallow unusual TLS segments x86/tls: Validate TLS entries to protect espfix isofs: Fix infinite looping over CE entries Linux 3.10.63 ALSA: usb-audio: Don't resubmit pending URBs at MIDI error recovery powerpc: 32 bit getcpu VDSO function uses 64 bit instructions ARM: sched_clock: Load cycle count after epoch stabilizes igb: bring link up when PHY is powered up ext2: Fix oops in ext2_get_block() called from ext2_quota_write() nEPT: Nested INVEPT net: sctp: use MAX_HEADER for headroom reserve in output path net: mvneta: fix Tx interrupt delay rtnetlink: release net refcnt on error in do_setlink() net/mlx4_core: Limit count field to 24 bits in qp_alloc_res tg3: fix ring init when there are more TX than RX channels ipv6: gre: fix wrong skb->protocol in WCCP sata_fsl: fix error handling of irq_of_parse_and_map ahci: disable MSI on SAMSUNG 0xa800 SSD AHCI: Add DeviceIDs for Sunrise Point-LP SATA controller media: smiapp: Only some selection targets are settable drm/i915: Unlock panel even when LVDS is disabled drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6 i2c: davinci: generate STP always when NACK is received i2c: omap: fix i207 errata handling i2c: omap: fix NACK and Arbitration Lost irq handling xen-netfront: Remove BUGs on paged skb data which crosses a page boundary mm: fix swapoff hang after page migration and fork mm: frontswap: invalidate expired data on a dup-store failure Linux 3.10.62 nfsd: Fix ACL null pointer deref powerpc/powernv: Honor the generic "no_64bit_msi" flag bnx2fc: do not add shared skbs to the fcoe_rx_list nfsd4: fix leak of inode reference on delegation failure nfsd: Fix slot wake up race in the nfsv4.1 callback code rt2x00: do not align payload on modern H/W can: dev: avoid calling kfree_skb() from interrupt context spi: dw: Fix dynamic speed change. iser-target: Handle DEVICE_REMOVAL event on network portal listener correctly target: Don't call TFO->write_pending if data_length == 0 srp-target: Retry when QP creation fails with ENOMEM Input: xpad - use proper endpoint type ARM: 8222/1: mvebu: enable strex backoff delay ARM: 8216/1: xscale: correct auxiliary register in suspend/resume ALSA: usb-audio: Add ctrl message delay quirk for Marantz/Denon devices can: esd_usb2: fix memory leak on disconnect USB: xhci: don't start a halted endpoint before its new dequeue is set usb-quirks: Add reset-resume quirk for MS Wireless Laser Mouse 6000 usb: serial: ftdi_sio: add PIDs for Matrix Orbital products USB: serial: cp210x: add IDs for CEL MeshConnect USB Stick USB: keyspan: fix tty line-status reporting USB: keyspan: fix overrun-error reporting USB: ssu100: fix overrun-error reporting iio: Fix IIO_EVENT_CODE_EXTRACT_DIR bit mask powerpc/pseries: Fix endiannes issue in RTAS call from xmon powerpc/pseries: Honor the generic "no_64bit_msi" flag of/base: Fix PowerPC address parsing hack ASoC: wm_adsp: Avoid attempt to free buffers that might still be in use ASoC: sgtl5000: Fix SMALL_POP bit definition PCI/MSI: Add device flag indicating that 64-bit MSIs don't work ipx: fix locking regression in ipx_sendmsg and ipx_recvmsg pptp: fix stack info leak in pptp_getname() qmi_wwan: Add support for HP lt4112 LTE/HSPA+ Gobi 4G Modem ieee802154: fix error handling in ieee802154fake_probe() ipv4: Fix incorrect error code when adding an unreachable route inetdevice: fixed signed integer overflow sparc64: Fix constraints on swab helpers. uprobes, x86: Fix _TIF_UPROBE vs _TIF_NOTIFY_RESUME x86, mm: Set NX across entire PMD at boot x86: Require exact match for 'noxsave' command line option x86_64, traps: Rework bad_iret x86_64, traps: Stop using IST for #SS x86_64, traps: Fix the espfix64 #DF fixup and rewrite it in C MIPS: Loongson: Make platform serial setup always built-in. MIPS: oprofile: Fix backtrace on 64-bit kernel Linux 3.10.61 mm: memcg: handle non-error OOM situations more gracefully mm: memcg: do not trap chargers with full callstack on OOM mm: memcg: rework and document OOM waiting and wakeup mm: memcg: enable memcg OOM killer only for user faults x86: finish user fault error path with fatal signal arch: mm: pass userspace fault flag to generic fault handler arch: mm: do not invoke OOM killer on kernel fault OOM arch: mm: remove obsolete init OOM protection mm: invoke oom-killer from remaining unconverted page fault handlers net: sctp: fix skb_over_panic when receiving malformed ASCONF chunks net: sctp: fix panic on duplicate ASCONF chunks net: sctp: fix remote memory pressure from excessive queueing KVM: x86: Don't report guest userspace emulation error to userspace SCSI: hpsa: fix a race in cmd_free/scsi_done net/mlx4_en: Fix BlueFlame race ARM: Correct BUG() assembly to ensure it is endian-agnostic perf/x86/intel: Use proper dTLB-load-misses event on IvyBridge mei: bus: fix possible boundaries violation perf: Handle compat ioctl MIPS: Fix forgotten preempt_enable() when CPU has inclusive pcaches dell-wmi: Fix access out of memory ARM: probes: fix instruction fetch order with <asm/opcodes.h> br: fix use of ->rx_handler_data in code executed on non-rx_handler path netfilter: nf_nat: fix oops on netns removal netfilter: xt_bpf: add mising opaque struct sk_filter definition netfilter: nf_log: release skbuff on nlmsg put failure netfilter: nfnetlink_log: fix maximum packet length logged to userspace netfilter: nf_log: account for size of NLMSG_DONE attribute ipc: always handle a new value of auto_msgmni clocksource: Remove "weak" from clocksource_default_clock() declaration kgdb: Remove "weak" from kgdb_arch_pc() declaration media: ttusb-dec: buffer overflow in ioctl NFSv4: Fix races between nfs_remove_bad_delegation() and delegation return nfs: Fix use of uninitialized variable in nfs_getattr() NFS: Don't try to reclaim delegation open state if recovery failed NFSv4: Ensure that we remove NFSv4.0 delegations when state has expired Input: alps - allow up to 2 invalid packets without resetting device Input: alps - ignore potential bare packets when device is out of sync dm raid: ensure superblock's size matches device's logical block size dm btree: fix a recursion depth bug in btree walking code block: Fix computation of merged request priority parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls scsi: only re-lock door after EH on devices that were reset nfs: fix pnfs direct write memory leak firewire: cdev: prevent kernel stack leaking into ioctl arguments arm64: __clear_user: handle exceptions on strb ARM: 8198/1: make kuser helpers depend on MMU drm/radeon: add missing crtc unlock when setting up the MC mac80211: fix use-after-free in defragmentation macvtap: Fix csum_start when VLAN tags are present iwlwifi: configure the LTR libceph: do not crash on large auth tickets xtensa: re-wire umount syscall to sys_oldumount ALSA: usb-audio: Fix memory leak in FTU quirk ahci: disable MSI instead of NCQ on Samsung pci-e SSDs on macbooks ahci: Add Device IDs for Intel Sunrise Point PCH audit: keep inode pinned x86, x32, audit: Fix x32's AUDIT_ARCH wrt audit sparc32: Implement xchg and atomic_xchg using ATOMIC_HASH locks sparc64: Do irq_{enter,exit}() around generic_smp_call_function*(). sparc64: Fix crashes in schizo_pcierr_intr_other(). sunvdc: don't call VD_OP_GET_VTOC vio: fix reuse of vio_dring slot sunvdc: limit each sg segment to a page sunvdc: compute vdisk geometry from capacity sunvdc: add cdrom and v1.1 protocol support net: sctp: fix memory leak in auth key management net: sctp: fix NULL pointer dereference in af->from_addr_param on malformed packet gre6: Move the setting of dev->iflink into the ndo_init functions. ip6_tunnel: Use ip6_tnl_dev_init as the ndo_init function. Linux 3.10.60 libceph: ceph-msgr workqueue needs a resque worker Btrfs: fix kfree on list_head in btrfs_lookup_csums_range error cleanup of: Fix overflow bug in string property parsing functions sysfs: driver core: Fix glue dir race condition by gdp_mutex i2c: at91: don't account as iowait acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80 rbd: Fix error recovery in rbd_obj_read_sync() drm/radeon: remove invalid pci id usb: gadget: udc: core: fix kernel oops with soft-connect usb: gadget: function: acm: make f_acm pass USB20CV Chapter9 usb: dwc3: gadget: fix set_halt() bug with pending transfers crypto: algif - avoid excessive use of socket buffer in skcipher mm: Remove false WARN_ON from pagecache_isize_extended() x86, apic: Handle a bad TSC more gracefully posix-timers: Fix stack info leak in timer_create() mac80211: fix typo in starting baserate for rts_cts_rate_idx PM / Sleep: fix recovery during resuming from hibernation tty: Fix high cpu load if tty is unreleaseable quota: Properly return errors from dquot_writeback_dquots() ext3: Don't check quota format when there are no quota files nfsd4: fix crash on unknown operation number cpc925_edac: Report UE events properly e7xxx_edac: Report CE events properly i3200_edac: Report CE events properly i82860_edac: Report CE events properly scsi: Fix error handling in SCSI_IOCTL_SEND_COMMAND lib/bitmap.c: fix undefined shift in __bitmap_shift_{left|right}() cgroup/kmemleak: add kmemleak_free() for cgroup deallocations. usb: Do not allow usb_alloc_streams on unconfigured devices USB: opticon: fix non-atomic allocation in write path usb-storage: handle a skipped data phase spi: pxa2xx: toggle clocks on suspend if not disabled by runtime PM spi: pl022: Fix incorrect dma_unmap_sg usb: dwc3: gadget: Properly initialize LINK TRB wireless: rt2x00: add new rt2800usb device USB: option: add Haier CE81B CDMA modem usb: option: add support for Telit LE910 USB: cdc-acm: only raise DTR on transitions from B0 USB: cdc-acm: add device id for GW Instek AFG-2225 usb: serial: ftdi_sio: add "bricked" FTDI device PID usb: serial: ftdi_sio: add Awinda Station and Dongle products USB: serial: cp210x: add Silicon Labs 358x VID and PID serial: Fix divide-by-zero fault in uart_get_divisor() staging:iio:ade7758: Remove "raw" from channel name staging:iio:ade7758: Fix check if channels are enabled in prenable staging:iio:ade7758: Fix NULL pointer deref when enabling buffer staging:iio:ad5933: Drop "raw" from channel names staging:iio:ad5933: Fix NULL pointer deref when enabling buffer OOM, PM: OOM killed task shouldn't escape PM suspend freezer: Do not freeze tasks killed by OOM killer ext4: fix oops when loading block bitmap failed cpufreq: intel_pstate: Fix setting max_perf_pct in performance policy ext4: fix overflow when updating superblock backups after resize ext4: check s_chksum_driver when looking for bg csum presence ext4: fix reservation overflow in ext4_da_write_begin ext4: add ext4_iget_normal() which is to be used for dir tree lookups ext4: grab missed write_count for EXT4_IOC_SWAP_BOOT ext4: don't check quota format when there are no quota files ext4: check EA value offset when loading jbd2: free bh when descriptor block checksum fails MIPS: tlbex: Properly fix HUGE TLB Refill exception handler target: Fix APTPL metadata handling for dynamic MappedLUNs target: Fix queue full status NULL pointer for SCF_TRANSPORT_TASK_SENSE qla_target: don't delete changed nacls ARC: Update order of registers in KGDB to match GDB 7.5 ARC: [nsimosci] Allow "headless" models to boot KVM: x86: Emulator fixes for eip canonical checks on near branches KVM: x86: Fix wrong masking on relative jump/call kvm: x86: don't kill guest on unknown exit reason KVM: x86: Check non-canonical addresses upon WRMSR KVM: x86: Improve thread safety in pit KVM: x86: Prevent host from panicking on shared MSR writes. kvm: fix excessive pages un-pinning in kvm_iommu_map error path. media: tda7432: Fix setting TDA7432_MUTE bit for TDA7432_RF register media: ds3000: fix LNB supply voltage on Tevii S480 on initialization media: em28xx-v4l: give back all active video buffers to the vb2 core properly on streaming stop media: v4l2-common: fix overflow in v4l_bound_align_image() drm/nouveau/bios: memset dcb struct to zero before parsing drm/tilcdc: Fix the error path in tilcdc_load() drm/ast: Fix HW cursor image Input: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544 Input: i8042 - add noloop quirk for Asus X750LN framebuffer: fix border color modules, lock around setting of MODULE_STATE_UNFORMED dm log userspace: fix memory leak in dm_ulog_tfr_init failure path block: fix alignment_offset math that assumes io_min is a power-of-2 drbd: compute the end before rb_insert_augmented() dm bufio: update last_accessed when relinking a buffer virtio_pci: fix virtio spec compliance on restore selinux: fix inode security list corruption pstore: Fix duplicate {console,ftrace}-efi entries mfd: rtsx_pcr: Fix MSI enable error handling mnt: Prevent pivot_root from creating a loop in the mount tree UBI: add missing kmem_cache_free() in process_pool_aeb error path random: add and use memzero_explicit() for clearing data crypto: more robust crypto_memneq fix misuses of f_count() in ppp and netlink kill wbuf_queued/wbuf_dwork_lock ALSA: pcm: Zero-clear reserved fields of PCM status ioctl in compat mode evm: check xattr value length and type in evm_inode_setxattr() x86, pageattr: Prevent overflow in slow_virt_to_phys() for X86_PAE x86_64, entry: Fix out of bounds read on sysenter x86_64, entry: Filter RFLAGS.NT on entry from userspace x86, flags: Rename X86_EFLAGS_BIT1 to X86_EFLAGS_FIXED x86, fpu: shift drop_init_fpu() from save_xstate_sig() to handle_signal() x86, fpu: __restore_xstate_sig()->math_state_restore() needs preempt_disable() x86: Reject x32 executables if x32 ABI not supported vfs: fix data corruption when blocksize < pagesize for mmaped data UBIFS: fix free log space calculation UBIFS: fix a race condition UBIFS: remove mst_mutex fs: Fix theoretical division by 0 in super_cache_scan(). fs: make cont_expand_zero interruptible mmc: rtsx_pci_sdmmc: fix incorrect last byte in R2 response libata-sff: Fix controllers with no ctl port pata_serverworks: disable 64-KB DMA transfers on Broadcom OSB4 IDE Controller Revert "percpu: free percpu allocation info for uniprocessor system" lockd: Try to reconnect if statd has moved drivers/net: macvtap and tun depend on INET ipv4: dst_entry leak in ip_send_unicast_reply() ax88179_178a: fix bonding failure ipv4: fix nexthop attlen check in fib_nh_match tracing/syscalls: Ignore numbers outside NR_syscalls' range Linux 3.10.59 ecryptfs: avoid to access NULL pointer when write metadata in xattr ARM: at91/PMC: don't forget to write PMC_PCDR register to disable clocks ALSA: usb-audio: Add support for Steinberg UR22 USB interface ALSA: emu10k1: Fix deadlock in synth voice lookup ALSA: pcm: use the same dma mmap codepath both for arm and arm64 arm64: compat: fix compat types affecting struct compat_elf_prpsinfo spi: dw-mid: terminate ongoing transfers at exit kernel: add support for gcc 5 fanotify: enable close-on-exec on events' fd when requested in fanotify_init() mm: clear __GFP_FS when PF_MEMALLOC_NOIO is set Bluetooth: Fix issue with USB suspend in btusb driver Bluetooth: Fix HCI H5 corrupted ack value rt2800: correct BBP1_TX_POWER_CTRL mask PCI: Generate uppercase hex for modalias interface class PCI: Increase IBM ipr SAS Crocodile BARs to at least system page size iwlwifi: Add missing PCI IDs for the 7260 series NFSv4.1: Fix an NFSv4.1 state renewal regression NFSv4: fix open/lock state recovery error handling NFSv4: Fix lock recovery when CREATE_SESSION/SETCLIENTID_CONFIRM fails lzo: check for length overrun in variable length encoding. Revert "lzo: properly check for overruns" Documentation: lzo: document part of the encoding m68k: Disable/restore interrupts in hwreg_present()/hwreg_write() Drivers: hv: vmbus: Fix a bug in vmbus_open() Drivers: hv: vmbus: Cleanup vmbus_establish_gpadl() Drivers: hv: vmbus: Cleanup vmbus_teardown_gpadl() Drivers: hv: vmbus: Cleanup vmbus_post_msg() firmware_class: make sure fw requests contain a name qla2xxx: Use correct offset to req-q-out for reserve calculation mptfusion: enable no_write_same for vmware scsi disks be2iscsi: check ip buffer before copying regmap: fix NULL pointer dereference in _regmap_write/read regmap: debugfs: fix possbile NULL pointer dereference spi: dw-mid: check that DMA was inited before exit spi: dw-mid: respect 8 bit mode x86/intel/quark: Switch off CR4.PGE so TLB flush uses CR3 instead kvm: don't take vcpu mutex for obviously invalid vcpu ioctls KVM: s390: unintended fallthrough for external call kvm: x86: fix stale mmio cache bug fs: Add a missing permission check to do_umount Btrfs: fix race in WAIT_SYNC ioctl Btrfs: fix build_backref_tree issue with multiple shared blocks Btrfs: try not to ENOSPC on log replay Linux 3.10.58 USB: cp210x: add support for Seluxit USB dongle USB: serial: cp210x: added Ketra N1 wireless interface support USB: Add device quirk for ASUS T100 Base Station keyboard ipv6: reallocate addrconf router for ipv6 address when lo device up tcp: fixing TLP's FIN recovery sctp: handle association restarts when the socket is closed. ip6_gre: fix flowi6_proto value in xmit path hyperv: Fix a bug in netvsc_start_xmit() tg3: Allow for recieve of full-size 8021AD frames tg3: Work around HW/FW limitations with vlan encapsulated frames l2tp: fix race while getting PMTU on PPP pseudo-wire openvswitch: fix panic with multiple vlan headers packet: handle too big packets for PACKET_V3 tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced() sit: Fix ipip6_tunnel_lookup device matching criteria myri10ge: check for DMA mapping errors Linux 3.10.57 cpufreq: ondemand: Change the calculation of target frequency cpufreq: Fix wrong time unit conversion nl80211: clear skb cb before passing to netlink drbd: fix regression 'out of mem, failed to invoke fence-peer helper' jiffies: Fix timeval conversion to jiffies md/raid5: disable 'DISCARD' by default due to safety concerns. media: vb2: fix VBI/poll regression mm: numa: Do not mark PTEs pte_numa when splitting huge pages mm, thp: move invariant bug check out of loop in __split_huge_page_map ring-buffer: Fix infinite spin in reading buffer init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu perf: fix perf bug in fork() udf: Avoid infinite loop when processing indirect ICBs Linux 3.10.56 vm_is_stack: use for_each_thread() rather then buggy while_each_thread() oom_kill: add rcu_read_lock() into find_lock_task_mm() oom_kill: has_intersects_mems_allowed() needs rcu_read_lock() oom_kill: change oom_kill.c to use for_each_thread() introduce for_each_thread() to replace the buggy while_each_thread() kernel/fork.c:copy_process(): unify CLONE_THREAD-or-thread_group_leader code arm: multi_v7_defconfig: Enable Zynq UART driver ext2: Fix fs corruption in ext2_get_xip_mem() serial: 8250_dma: check the result of TX buffer mapping ARM: 7748/1: oabi: handle faults when loading swi instruction from userspace netfilter: nf_conntrack: avoid large timeout for mid-stream pickup PM / sleep: Use valid_state() for platform-dependent sleep states only PM / sleep: Add state field to pm_states[] entries ipvs: fix ipv6 hook registration for local replies ipvs: Maintain all DSCP and ECN bits for ipv6 tun forwarding ipvs: avoid netns exit crash on ip_vs_conn_drop_conntrack md/raid1: fix_read_error should act on all non-faulty devices. media: cx18: fix kernel oops with tda8290 tuner Fix nasty 32-bit overflow bug in buffer i/o code. perf kmem: Make it work again on non NUMA machines perf: Fix a race condition in perf_remove_from_context() alarmtimer: Lock k_itimer during timer callback alarmtimer: Do not signal SIGEV_NONE timers parisc: Only use -mfast-indirect-calls option for 32-bit kernel builds powerpc/perf: Fix ABIv2 kernel backtraces sched: Fix unreleased llc_shared_mask bit during CPU hotplug ocfs2/dlm: do not get resource spinlock if lockres is new nilfs2: fix data loss with mmap() fs/notify: don't show f_handle if exportfs_encode_inode_fh failed fsnotify/fdinfo: use named constants instead of hardcoded values kcmp: fix standard comparison bug Revert "mac80211: disable uAPSD if all ACs are under ACM" usb: dwc3: core: fix ordering for PHY suspend usb: dwc3: core: fix order of PM runtime calls usb: host: xhci: fix compliance mode workaround genhd: fix leftover might_sleep() in blk_free_devt() lockd: fix rpcbind crash on lockd startup failure rtlwifi: rtl8192cu: Add new ID percpu: perform tlb flush after pcpu_map_pages() failure percpu: fix pcpu_alloc_pages() failure path percpu: free percpu allocation info for uniprocessor system ata_piix: Add Device IDs for Intel 9 Series PCH Input: i8042 - add nomux quirk for Avatar AVIU-145A6 Input: i8042 - add Fujitsu U574 to no_timeout dmi table Input: atkbd - do not try 'deactivate' keyboard on any LG laptops Input: elantech - fix detection of touchpad on ASUS s301l Input: synaptics - add support for ForcePads Input: serport - add compat handling for SPIOCSTYPE ioctl dm crypt: fix access beyond the end of allocated space block: Fix dev_t minor allocation lifetime workqueue: apply __WQ_ORDERED to create_singlethread_workqueue() Revert "iwlwifi: dvm: don't enable CTS to self" SCSI: libiscsi: fix potential buffer overrun in __iscsi_conn_send_pdu NFC: microread: Potential overflows in microread_target_discovered() iscsi-target: Fix memory corruption in iscsit_logout_post_handler_diffcid iscsi-target: avoid NULL pointer in iscsi_copy_param_list failure Target/iser: Don't put isert_conn inside disconnected handler Target/iser: Get isert_conn reference once got to connected_handler iio:inkern: fix overwritten -EPROBE_DEFER in of_iio_channel_get_by_name iio:magnetometer: bugfix magnetometers gain values iio: adc: ad_sigma_delta: Fix indio_dev->trig assignment iio: st_sensors: Fix indio_dev->trig assignment iio: meter: ade7758: Fix indio_dev->trig assignment iio: inv_mpu6050: Fix indio_dev->trig assignment iio: gyro: itg3200: Fix indio_dev->trig assignment iio:trigger: modify return value for iio_trigger_get CIFS: Fix SMB2 readdir error handling CIFS: Fix directory rename error ASoC: davinci-mcasp: Correct rx format unit configuration shmem: fix nlink for rename overwrite directory x86 early_ioremap: Increase FIX_BTMAPS_SLOTS to 8 KVM: x86: handle idiv overflow at kvm_write_tsc regmap: Fix handling of volatile registers for format_write() chips ACPICA: Update to GPIO region handler interface. MIPS: mcount: Adjust stack pointer for static trace in MIPS32 MIPS: ZBOOT: add missing <linux/string.h> include ARM: 8165/1: alignment: don't break misaligned NEON load/store ARM: 7897/1: kexec: Use the right ISA for relocate_new_kernel ARM: 8133/1: use irq_set_affinity with force=false when migrating irqs ARM: 8128/1: abort: don't clear the exclusive monitors NFSv4: Fix another bug in the close/open_downgrade code NFSv4: nfs4_state_manager() vs. nfs_server_remove_lists() usb:hub set hub->change_bits when over-current happens usb: dwc3: omap: fix ordering for runtime pm calls USB: EHCI: unlink QHs even after the controller has stopped USB: storage: Add quirks for Entrega/Xircom USB to SCSI converters USB: storage: Add quirk for Ariston Technologies iConnect USB to SCSI adapter USB: storage: Add quirk for Adaptec USBConnect 2000 USB-to-SCSI Adapter storage: Add single-LUN quirk for Jaz USB Adapter usb: hub: take hub->hdev reference when processing from eventlist xhci: fix oops when xhci resumes from hibernate with hw lpm capable devices xhci: Fix null pointer dereference if xhci initialization fails USB: zte_ev: fix removed PIDs USB: ftdi_sio: add support for NOVITUS Bono E thermal printer USB: sierra: add 1199:68AA device ID USB: sierra: avoid CDC class functions on "68A3" devices USB: zte_ev: remove duplicate Qualcom PID USB: zte_ev: remove duplicate Gobi PID Revert "USB: option,zte_ev: move most ZTE CDMA devices to zte_ev" USB: option: add VIA Telecom CDS7 chipset device id USB: option: reduce interrupt-urb logging verbosity USB: serial: fix potential heap buffer overflow USB: sisusb: add device id for Magic Control USB video USB: serial: fix potential stack buffer overflow USB: serial: pl2303: add device id for ztek device xtensa: fix a6 and a7 handling in fast_syscall_xtensa xtensa: fix TLBTEMP_BASE_2 region handling in fast_second_level_miss xtensa: fix access to THREAD_RA/THREAD_SP/THREAD_DS xtensa: fix address checks in dma_{alloc,free}_coherent xtensa: replace IOCTL code definitions with constants drm/radeon: add connector quirk for fujitsu board drm/vmwgfx: Fix a potential infinite spin waiting for fifo idle drm/ast: AST2000 cannot be detected correctly drm/i915: Wait for vblank before enabling the TV encoder drm/i915: Remove bogus __init annotation from DMI callbacks HID: logitech-dj: prevent false errors to be shown HID: magicmouse: sanity check report size in raw_event() callback HID: picolcd: sanity check report size in raw_event() callback cfq-iosched: Fix wrong children_weight calculation ALSA: pcm: fix fifo_size frame calculation ALSA: hda - Fix invalid pin powermap without jack detection ALSA: hda - Fix COEF setups for ALC1150 codec ALSA: core: fix buffer overflow in snd_info_get_line() arm64: ptrace: fix compat hardware watchpoint reporting trace: Fix epoll hang when we race with new entries i2c: at91: Fix a race condition during signal handling in at91_do_twi_xfer. i2c: at91: add bound checking on SMBus block length bytes arm64: flush TLS registers during exec ibmveth: Fix endian issues with rx_no_buffer statistic ahci: add pcid for Marvel 0x9182 controller ahci: Add Device IDs for Intel 9 Series PCH pata_scc: propagate return value of scc_wait_after_reset drm/i915: read HEAD register back in init_ring_common() to enforce ordering drm/radeon: load the lm63 driver for an lm64 thermal chip. drm/ttm: Choose a pool to shrink correctly in ttm_dma_pool_shrink_scan(). drm/ttm: Fix possible division by 0 in ttm_dma_pool_shrink_scan(). drm/tilcdc: fix double kfree drm/tilcdc: fix release order on exit drm/tilcdc: panel: fix leak when unloading the module drm/tilcdc: tfp410: fix dangling sysfs connector node drm/tilcdc: slave: fix dangling sysfs connector node drm/tilcdc: panel: fix dangling sysfs connector node carl9170: fix sending URBs with wrong type when using full-speed Linux 3.10.55 libceph: gracefully handle large reply messages from the mon libceph: rename ceph_msg::front_max to front_alloc_len tpm: Provide a generic means to override the chip returned timeouts vfs: fix bad hashing of dentries dcache.c: get rid of pointless macros IB/srp: Fix deadlock between host removal and multipathd blkcg: don't call into policy draining if root_blkg is already gone mtd: nand: omap: Fix 1-bit Hamming code scheme, omap_calculate_ecc() mtd/ftl: fix the double free of the buffers allocated in build_maps() CIFS: Fix wrong restart readdir for SMB1 CIFS: Fix wrong filename length for SMB2 CIFS: Fix wrong directory attributes after rename CIFS: Possible null ptr deref in SMB2_tcon CIFS: Fix async reading on reconnects CIFS: Fix STATUS_CANNOT_DELETE error mapping for SMB2 libceph: do not hard code max auth ticket len libceph: add process_one_ticket() helper libceph: set last_piece in ceph_msg_data_pages_cursor_init() correctly md/raid1,raid10: always abort recover on write error. xfs: don't zero partial page cache pages during O_DIRECT writes xfs: don't zero partial page cache pages during O_DIRECT writes xfs: don't dirty buffers beyond EOF xfs: quotacheck leaves dquot buffers without verifiers RDMA/iwcm: Use a default listen backlog if needed md/raid10: Fix memory leak when raid10 reshape completes. md/raid10: fix memory leak when reshaping a RAID10. md/raid6: avoid data corruption during recovery of double-degraded RAID6 Bluetooth: Avoid use of session socket after the session gets freed Bluetooth: never linger on process exit mnt: Add tests for unprivileged remount cases that have found to be faulty mnt: Change the default remount atime from relatime to the existing value mnt: Correct permission checks in do_remount mnt: Move the test for MNT_LOCK_READONLY from change_mount_flags into do_remount mnt: Only change user settable mount flags in remount ring-buffer: Up rb_iter_peek() loop count to 3 ring-buffer: Always reset iterator to reader page ACPI / cpuidle: fix deadlock between cpuidle_lock and cpu_hotplug.lock ACPI: Run fixed event device notifications in process context ACPICA: Utilities: Fix memory leak in acpi_ut_copy_iobject_to_iobject bfa: Fix undefined bit shift on big-endian architectures with 32-bit DMA address ASoC: pxa-ssp: drop SNDRV_PCM_FMTBIT_S24_LE ASoC: max98090: Fix missing free_irq ASoC: samsung: Correct I2S DAI suspend/resume ops ASoC: wm_adsp: Add missing MODULE_LICENSE ASoC: pcm: fix dpcm_path_put in dpcm runtime update openrisc: Rework signal handling MIPS: Fix accessing to per-cpu data when flushing the cache MIPS: OCTEON: make get_system_type() thread-safe MIPS: asm: thread_info: Add _TIF_SECCOMP flag MIPS: Cleanup flags in syscall flags handlers. MIPS: asm/reg.h: Make 32- and 64-bit definitions available at the same time MIPS: Remove BUG_ON(!is_fpu_owner()) in do_ade() MIPS: tlbex: Fix a missing statement for HUGETLB MIPS: Prevent user from setting FCSR cause bits MIPS: GIC: Prevent array overrun drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure Drivers: scsi: storvsc: Implement a eh_timed_out handler powerpc/pseries: Failure on removing device node powerpc/mm: Use read barrier when creating real_pte powerpc/mm/numa: Fix break placement regulator: arizona-ldo1: remove bypass functionality mfd: omap-usb-host: Fix improper mask use. kernel/smp.c:on_each_cpu_cond(): fix warning in fallback path CAPABILITIES: remove undefined caps from all processes tpm: missing tpm_chip_put in tpm_get_random() firmware: Do not use WARN_ON(!spin_is_locked()) spi: omap2-mcspi: Configure hardware when slave driver changes mode spi: orion: fix incorrect handling of cell-index DT property iommu/amd: Fix cleanup_domain for mass device removal media: media-device: Remove duplicated memset() in media_enum_entities() media: au0828: Only alt setting logic when needed media: xc4000: Fix get_frequency() media: xc5000: Fix get_frequency() Linux 3.10.54 USB: fix build error with CONFIG_PM_RUNTIME disabled NFSv4: Fix problems with close in the presence of a delegation NFSv3: Fix another acl regression svcrdma: Select NFSv4.1 backchannel transport based on forward channel NFSD: Decrease nfsd_users in nfsd_startup_generic fail usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1 USB: whiteheat: Added bounds checking for bulk command response USB: ftdi_sio: Added PID for new ekey device USB: ftdi_sio: add Basic Micro ATOM Nano USB2Serial PID ARM: OMAP2+: hwmod: Rearm wake-up interrupts for DT when MUSB is idled usb: xhci: amd chipset also needs short TX quirk xhci: Treat not finding the event_seg on COMP_STOP the same as COMP_STOP_INVAL Staging: speakup: Update __speakup_paste_selection() tty (ab)usage to match vt jbd2: fix infinite loop when recovering corrupt journal blocks mei: nfc: fix memory leak in error path mei: reset client state on queued connect request Btrfs: fix csum tree corruption, duplicate and outdated checksums hpsa: fix bad -ENOMEM return value in hpsa_big_passthru_ioctl x86/efi: Enforce CONFIG_RELOCATABLE for EFI boot stub x86_64/vsyscall: Fix warn_bad_vsyscall log output x86: don't exclude low BIOS area when allocating address space for non-PCI cards drm/radeon: add additional SI pci ids ext4: fix BUG_ON in mb_free_blocks() kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601) Revert "KVM: x86: Increase the number of fixed MTRR regs to 10" KVM: nVMX: fix "acknowledge interrupt on exit" when APICv is in use KVM: x86: always exit on EOIs for interrupts listed in the IOAPIC redir table KVM: x86: Inter-privilege level ret emulation is not implemeneted crypto: ux500 - make interrupt mode plausible serial: core: Preserve termios c_cflag for console resume ext4: fix ext4_discard_allocated_blocks() if we can't allocate the pa struct drivers/i2c/busses: use correct type for dma_map/unmap hwmon: (dme1737) Prevent overflow problem when writing large limits hwmon: (ads1015) Fix out-of-bounds array access hwmon: (lm85) Fix various errors on attribute writes hwmon: (ads1015) Fix off-by-one for valid channel index checking hwmon: (gpio-fan) Prevent overflow problem when writing large limits hwmon: (lm78) Fix overflow problems seen when writing large temperature limits hwmon: (sis5595) Prevent overflow problem when writing large limits drm: omapdrm: fix compiler errors ARM: OMAP3: Fix choice of omap3_restore_es function in OMAP34XX rev3.1.2 case. mei: start disconnect request timer consistently ALSA: hda/realtek - Avoid setting wrong COEF on ALC269 & co ALSA: hda/ca0132 - Don't try loading firmware at resume when already failed ALSA: virtuoso: add Xonar Essence STX II support ALSA: hda - fix an external mic jack problem on a HP machine USB: Fix persist resume of some SS USB devices USB: ehci-pci: USB host controller support for Intel Quark X1000 USB: serial: ftdi_sio: Add support for new Xsens devices USB: serial: ftdi_sio: Annotate the current Xsens PID assignments USB: OHCI: don't lose track of EDs when a controller dies isofs: Fix unbounded recursion when processing relocated directories HID: fix a couple of off-by-ones HID: logitech: perform bounds checking on device_id early enough stable_kernel_rules: Add pointer to netdev-FAQ for network patches Linux 3.10.53 arch/sparc/math-emu/math_32.c: drop stray break operator sparc64: ldc_connect() should not return EINVAL when handshake is in progress. sunsab: Fix detection of BREAK on sunsab serial console bbc-i2c: Fix BBC I2C envctrl on SunBlade 2000 sparc64: Guard against flushing openfirmware mappings. sparc64: Do not insert non-valid PTEs into the TSB hash table. sparc64: Add membar to Niagara2 memcpy code. sparc64: Fix huge TSB mapping on pre-UltraSPARC-III cpus. sparc64: Don't bark so loudly about 32-bit tasks generating 64-bit fault addresses. sparc64: Fix top-level fault handling bugs. sparc64: Handle 32-bit tasks properly in compute_effective_address(). sparc64: Make itc_sync_lock raw sparc64: Fix argument sign extension for compat_sys_futex(). sctp: fix possible seqlock seadlock in sctp_packet_transmit() iovec: make sure the caller actually wants anything in memcpy_fromiovecend net: Correctly set segment mac_len in skb_segment(). macvlan: Initialize vlan_features to turn on offload support. net: sctp: inherit auth_capable on INIT collisions tcp: Fix integer-overflow in TCP vegas tcp: Fix integer-overflows in TCP veno net: sendmsg: fix NULL pointer dereference ip: make IP identifiers less predictable inetpeer: get rid of ip_id_count bnx2x: fix crash during TSO tunneling Linux 3.10.52 x86/espfix/xen: Fix allocation of pages for paravirt page tables lib/btree.c: fix leak of whole btree nodes net/l2tp: don't fall back on UDP [get|set]sockopt net: mvneta: replace Tx timer with a real interrupt net: mvneta: add missing bit descriptions for interrupt masks and causes net: mvneta: do not schedule in mvneta_tx_timeout net: mvneta: use per_cpu stats to fix an SMP lock up net: mvneta: increase the 64-bit rx/tx stats out of the hot path Revert "mac80211: move "bufferable MMPDU" check to fix AP mode scan" staging: vt6655: Fix Warning on boot handle_irq_event_percpu. x86_64/entry/xen: Do not invoke espfix64 on Xen x86, espfix: Make it possible to disable 16-bit support x86, espfix: Make espfix64 a Kconfig option, fix UML x86, espfix: Fix broken header guard x86, espfix: Move espfix definitions into a separate header file x86-64, espfix: Don't leak bits 31:16 of %esp returning to 16-bit stack Revert "x86-64, modify_ldt: Make support for 16-bit segments a runtime option" timer: Fix lock inversion between hrtimer_bases.lock and scheduler locks printk: rename printk_sched to printk_deferred iio: buffer: Fix demux table creation staging: vt6655: Fix disassociated messages every 10 seconds mm, thp: do not allow thp faults to avoid cpuset restrictions scsi: handle flush errors properly rapidio/tsi721_dma: fix failure to obtain transaction descriptor cfg80211: fix mic_failure tracing ARM: 8115/1: LPAE: reduce damage caused by idmap to virtual memory layout crypto: af_alg - properly label AF_ALG socket Linux 3.10.51 core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errors x86/efi: Include a .bss section within the PE/COFF headers s390/ptrace: fix PSW mask check Fix gcc-4.9.0 miscompilation of load_balance() in scheduler mm: hugetlb: fix copy_hugetlb_page_range() x86_32, entry: Store badsys error code in %eax hwmon: (smsc47m192) Fix temperature limit and vrm write operations parisc: Remove SA_RESTORER define coredump: fix the setting of PF_DUMPCORE Input: fix defuzzing logic slab_common: fix the check for duplicate slab names slab_common: Do not check for duplicate slab names tracing: Fix wraparound problems in "uptime" trace clock blkcg: don't call into policy draining if root_blkg is already gone ahci: add support for the Promise FastTrak TX8660 SATA HBA (ahci mode) libata: introduce ata_host->n_tags to avoid oops on SAS controllers libata: support the ata host which implements a queue depth less than 32 block: don't assume last put of shared tags is for the host block: provide compat ioctl for BLKZEROOUT media: tda10071: force modulation to QPSK on DVB-S media: hdpvr: fix two audio bugs Linux 3.10.50 ARC: Implement ptrace(PTRACE_GET_THREAD_AREA) sched: Fix possible divide by zero in avg_atom() calculation locking/mutex: Disable optimistic spinning on some architectures PM / sleep: Fix request_firmware() error at resume dm cache metadata: do not allow the data block size to change dm thin metadata: do not allow the data block size to change alarmtimer: Fix bug where relative alarm timers were treated as absolute drm/radeon: avoid leaking edid data drm/qxl: return IRQ_NONE if it was not our irq drm/radeon: set default bl level to something reasonable irqchip: gic: Fix core ID calculation when topology is read from DT irqchip: gic: Add support for cortex a7 compatible string ring-buffer: Fix polling on trace_pipe mwifiex: fix Tx timeout issue perf/x86/intel: ignore CondChgd bit to avoid false NMI handling ipv4: fix buffer overflow in ip_options_compile() dns_resolver: Null-terminate the right string dns_resolver: assure that dns_query() result is null-terminated sunvnet: clean up objects created in vnet_new() on vnet_exit() net: pppoe: use correct channel MTU when using Multilink PPP net: sctp: fix information leaks in ulpevent layer tipc: clear 'next'-pointer of message fragments before reassembly be2net: set EQ DB clear-intr bit in be_open() netlink: Fix handling of error from netlink_dump(). net: mvneta: Fix big endian issue in mvneta_txq_desc_csum() net: mvneta: fix operation in 10 Mbit/s mode appletalk: Fix socket referencing in skb tcp: fix false undo corner cases igmp: fix the problem when mc leave group net: qmi_wwan: add two Sierra Wireless/Netgear devices net: qmi_wwan: Add ID for Telewell TW-LTE 4G v2 ipv4: icmp: Fix pMTU handling for rare case tcp: Fix divide by zero when pushing during tcp-repair bnx2x: fix possible panic under memory stress net: fix sparse warning in sk_dst_set() ipv4: irq safe sk_dst_[re]set() and ipv4_sk_update_pmtu() fix ipv4: fix dst race in sk_dst_get() 8021q: fix a potential memory leak net: sctp: check proc_dointvec result in proc_sctp_do_auth tcp: fix tcp_match_skb_to_sack() for unaligned SACK at end of an skb ip_tunnel: fix ip_tunnel_lookup shmem: fix splicing from a hole while it's punched shmem: fix faulting into a hole, not taking i_mutex shmem: fix faulting into a hole while it's punched iwlwifi: dvm: don't enable CTS to self igb: do a reset on SR-IOV re-init if device is down hwmon: (adt7470) Fix writes to temperature limit registers hwmon: (da9052) Don't use dash in the name attribute hwmon: (da9055) Don't use dash in the name attribute tracing: Add ftrace_trace_stack into __trace_puts/__trace_bputs tracing: Fix graph tracer with stack tracer on other archs fuse: handle large user and group ID Bluetooth: Ignore H5 non-link packets in non-active state Drivers: hv: util: Fix a bug in the KVP code media: gspca_pac7302: Add new usb-id for Genius i-Look 317 usb: Check if port status is equal to RxDetect Signed-off-by: Ian Maund <imaund@codeaurora.org> |
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Cesar Eduardo Barros
|
620c41147d |
crypto: more robust crypto_memneq
commit fe8c8a126806fea4465c43d62a1f9d273a572bf5 upstream. [Only use the compiler.h portion of this patch, to get the OPTIMIZER_HIDE_VAR() macro, which we need for other -stable patches - gregkh] Disabling compiler optimizations can be fragile, since a new optimization could be added to -O0 or -Os that breaks the assumptions the code is making. Instead of disabling compiler optimizations, use a dummy inline assembly (based on RELOC_HIDE) to block the problematic kinds of optimization, while still allowing other optimizations to be applied to the code. The dummy inline assembly is added after every OR, and has the accumulator variable as its input and output. The compiler is forced to assume that the dummy inline assembly could both depend on the accumulator variable and change the accumulator variable, so it is forced to compute the value correctly before the inline assembly, and cannot assume anything about its value after the inline assembly. This change should be enough to make crypto_memneq work correctly (with data-independent timing) even if it is inlined at its call sites. That can be done later in a followup patch. Compile-tested on x86_64. Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.eti.br> Acked-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Peter Zijlstra
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dcd63889c3 |
arch: Introduce smp_load_acquire(), smp_store_release()
A number of situations currently require the heavyweight smp_mb(), even though there is no need to order prior stores against later loads. Many architectures have much cheaper ways to handle these situations, but the Linux kernel currently has no portable way to make use of them. This commit therefore supplies smp_load_acquire() and smp_store_release() to remedy this situation. The new smp_load_acquire() primitive orders the specified load against any subsequent reads or writes, while the new smp_store_release() primitive orders the specifed store against any prior reads or writes. These primitives allow array-based circular FIFOs to be implemented without an smp_mb(), and also allow a theoretical hole in rcu_assign_pointer() to be closed at no additional expense on most architectures. In addition, the RCU experience transitioning from explicit smp_read_barrier_depends() and smp_wmb() to rcu_dereference() and rcu_assign_pointer(), respectively resulted in substantial improvements in readability. It therefore seems likely that replacing other explicit barriers with smp_load_acquire() and smp_store_release() will provide similar benefits. It appears that roughly half of the explicit barriers in core kernel code might be so replaced. [Changelog by PaulMck] Reviewed-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Michael Neuling <mikey@neuling.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Victor Kaplansky <VICTORK@il.ibm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Oleg Nesterov <oleg@redhat.com> Link: http://lkml.kernel.org/r/20131213150640.908486364@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Git-commit: 47933ad41a86a4a9b50bed7c9b9bd2ba242aac63 Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Signed-off-by: Ian Maund <imaund@codeaurora.org> |
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Masami Hiramatsu
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324670b620 |
kprobes: Move __kprobes definition into compiler.h
Currently, __kprobes is defined in linux/kprobes.h which is too big to be included in small or basic headers that want to make use of this simple attribute. So move __kprobes definition into linux/compiler.h in which other compiler attributes are defined. Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Timo Juhani Lindfors <timo.lindfors@iki.fi> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Nadia Yvette Chambers <nyc@holomorphy.com> Cc: yrl.pp-manager.tt@hitachi.com Cc: David S. Miller <davem@davemloft.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20130404104049.21071.20908.stgit@mhiramat-M0-7522 [ Improved the attribute explanation a bit. ] Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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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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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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Linus Torvalds
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7a684c452e |
Nothing all that exciting; a new module-from-fd syscall for those who want
to verify the source of the module (ChromeOS) and/or use standard IMA on it or other security hooks. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJQ0VKlAAoJENkgDmzRrbjxjuEQALVHpD1cSmryOzVwkNn7rVGP PV3KVbUs+qzUCm2c3AafIIlSBm2LOUl+cR3uNC7di8aHarRF3VHkK2OQ4Fx97ECd KKBqAyY3R0q1mAKujb/MWwiK0YgosEDIOzGGn2yQhNFsxKqnMB02P4j82IO7+g+w Cc3XuDyWHoH2I+ySgz0Q8NHAqufD/DMZUKud7jw2Lsv6PuICJ1Oqgl/Gd/muxort 4a5tV3tjhRGywHS/8b2fbDUXkybC5NKK0FN+gyoaROmJ/THeHEQDGXZT9bc2vmVx HvRy/5k8dzQ6LAJ2mLnPvy0pmv0u7NYMvjxTxxUlUkFMkYuVticikQfwSYDbDPt4 mbsLxchpgi8z4x8HltEERffCX5tldo/5hz1uemqhqIsMRIrRFnlHkSIgkGjVHf2u LXQBLT8uTm6C0VyNQPrI/hUZzIax7WtKbPSoK9lmExNbKqloEFh/mVXvfQxei2kp wnUZcnmPIqSvw7b4CWu7HibMYu2VvGBgm3YIfJRi4AQme1mzFYLpZoxF5Pj+Ykbt T//Hb1EsNQTTFCg7MZhnJSAw/EVUvNDUoullORClyqw6+xxjVKqWpPJgYDRfWOlJ Xa+s7DNrL+Oo1WWR8l5ruoQszbR8szIyeyPKKxRUcQj2zsqghoWuzKAx2saSEw3W pNkoJU+dGC7kG/yVAS8N =uoJj -----END PGP SIGNATURE----- Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module update from Rusty Russell: "Nothing all that exciting; a new module-from-fd syscall for those who want to verify the source of the module (ChromeOS) and/or use standard IMA on it or other security hooks." * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: MODSIGN: Fix kbuild output when using default extra_certificates MODSIGN: Avoid using .incbin in C source modules: don't hand 0 to vmalloc. module: Remove a extra null character at the top of module->strtab. ASN.1: Use the ASN1_LONG_TAG and ASN1_INDEFINITE_LENGTH constants ASN.1: Define indefinite length marker constant moduleparam: use __UNIQUE_ID() __UNIQUE_ID() MODSIGN: Add modules_sign make target powerpc: add finit_module syscall. ima: support new kernel module syscall add finit_module syscall to asm-generic ARM: add finit_module syscall to ARM security: introduce kernel_module_from_file hook module: add flags arg to sys_finit_module() module: add syscall to load module from fd |
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Josh Triplett
|
8529091e8e |
linux/compiler.h: add __must_hold macro for functions called with a lock held
linux/compiler.h has macros to denote functions that acquire or release locks, but not to denote functions called with a lock held that return with the lock still held. Add a __must_hold macro to cover that case. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Reported-by: Ed Cashin <ecashin@coraid.com> Tested-by: Ed Cashin <ecashin@coraid.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Rusty Russell
|
6f33d58794 |
__UNIQUE_ID()
Jan Beulich points out __COUNTER__ (gcc 4.3 and above), so let's use that to create unique ids. This is better than __LINE__ which we use today, so provide a wrapper. Stanislaw Gruszka <sgruszka@redhat.com> reported that some module parameters start with a digit, so we need to prepend when we for the unique id. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Jan Beulich <jbeulich@suse.com> |
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Andi Kleen
|
9a858dc7ce |
compiler.h: add __visible
gcc 4.6+ has support for a externally_visible attribute that prevents the optimizer from optimizing unused symbols away. Add a __visible macro to use it with that compiler version or later. This is used (at least) by the "Link Time Optimization" patchset. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Alexander Stein
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e6be0c9e7e |
compiler.h: Fix typo
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> |
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David Daney
|
1399ff86f2 |
kernel.h: add BUILD_BUG() macro
We can place this in definitions that we expect the compiler to remove by dead code elimination. If this assertion fails, we get a nice error message at build time. The GCC function attribute error("message") was added in version 4.3, so we define a new macro __linktime_error(message) to expand to this for GCC-4.3 and later. This will give us an error diagnostic from the compiler on the line that fails. For other compilers __linktime_error(message) expands to nothing, and we have to be content with a link time error, but at least we will still get a build error. BUILD_BUG() expands to the undefined function __build_bug_failed() and will fail at link time if the compiler ever emits code for it. On GCC-4.3 and later, attribute((error())) is used so that the failure will be noted at compile time instead. Signed-off-by: David Daney <david.daney@cavium.com> Acked-by: David Rientjes <rientjes@google.com> Cc: DM <dm.n9107@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Paul E. McKenney
|
ca5ecddfa8 |
rcu: define __rcu address space modifier for sparse
This commit provides definitions for the __rcu annotation defined earlier. This annotation permits sparse to check for correct use of RCU-protected pointers. If a pointer that is annotated with __rcu is accessed directly (as opposed to via rcu_dereference(), rcu_assign_pointer(), or one of their variants), sparse can be made to complain. To enable such complaints, use the new default-disabled CONFIG_SPARSE_RCU_POINTER kernel configuration option. Please note that these sparse complaints are intended to be a debugging aid, -not- a code-style-enforcement mechanism. There are special rcu_dereference_protected() and rcu_access_pointer() accessors for use when RCU read-side protection is not required, for example, when no other CPU has access to the data structure in question or while the current CPU hold the update-side lock. This patch also updates a number of docbook comments that were showing their age. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Christopher Li <sparse@chrisli.org> Reviewed-by: Josh Triplett <josh@joshtriplett.org> |
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Paul E. McKenney
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71d1d5c722 |
rcu: add __rcu API for later sparse checking
This commit defines an __rcu API, but provides only vacuous definitions for it. This breaks dependencies among most of the subsequent patches, allowing them to reach mainline asynchronously via whatever trees are appropriate. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Christopher Li <sparse@chrisli.org> Cc: Josh Triplett <josh@joshtriplett.org> |
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Tejun Heo
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32032df6c2 |
Merge branch 'master' into percpu
Conflicts: arch/powerpc/platforms/pseries/hvCall.S include/linux/percpu.h |
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Linus Torvalds
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ef26b1691d |
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: include/linux/compiler-gcc4.h: Fix build bug - gcc-4.0.2 doesn't understand __builtin_object_size x86/alternatives: No need for alternatives-asm.h to re-invent stuff already in asm.h x86/alternatives: Check replacementlen <= instrlen at build time x86, 64-bit: Set data segments to null after switching to 64-bit mode x86: Clean up the loadsegment() macro x86: Optimize loadsegment() x86: Add missing might_fault() checks to copy_{to,from}_user() x86-64: __copy_from_user_inatomic() adjustments x86: Remove unused thread_return label from switch_to() x86, 64-bit: Fix bstep_iret jump x86: Don't use the strict copy checks when branch profiling is in use x86, 64-bit: Move K8 B step iret fixup to fault entry asm x86: Generate cmpxchg build failures x86: Add a Kconfig option to turn the copy_from_user warnings into errors x86: Turn the copy_from_user check into an (optional) compile time warning x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy x86: Use __builtin_object_size() to validate the buffer size for copy_from_user() |
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Linus Torvalds
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96fa2b508d |
Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (40 commits) tracing: Separate raw syscall from syscall tracer ring-buffer-benchmark: Add parameters to set produce/consumer priorities tracing, function tracer: Clean up strstrip() usage ring-buffer benchmark: Run producer/consumer threads at nice +19 tracing: Remove the stale include/trace/power.h tracing: Only print objcopy version warning once from recordmcount tracing: Prevent build warning: 'ftrace_graph_buf' defined but not used ring-buffer: Move access to commit_page up into function used tracing: do not disable interrupts for trace_clock_local ring-buffer: Add multiple iterations between benchmark timestamps kprobes: Sanitize struct kretprobe_instance allocations tracing: Fix to use __always_unused attribute compiler: Introduce __always_unused tracing: Exit with error if a weak function is used in recordmcount.pl tracing: Move conditional into update_funcs() in recordmcount.pl tracing: Add regex for weak functions in recordmcount.pl tracing: Move mcount section search to front of loop in recordmcount.pl tracing: Fix objcopy revision check in recordmcount.pl tracing: Check absolute path of input file in recordmcount.pl tracing: Correct the check for number of arguments in recordmcount.pl ... |
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David Daney
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38938c879e |
Add support for GCC-4.5's __builtin_unreachable() to compiler.h (v2)
Starting with version 4.5, GCC has a new built-in function __builtin_unreachable() that can be used in places like the kernel's BUG() where inline assembly is used to transfer control flow. This eliminated the need for an endless loop in these places. The patch adds a new macro 'unreachable()' that will expand to either __builtin_unreachable() or an endless loop depending on the compiler version. Change from v1: Simplify unreachable() for non-GCC 4.5 case. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Li Zefan
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7b2a35132a |
compiler: Introduce __always_unused
I wrote some code which is used as compile-time checker, and the code should be elided after compile. So I need to annotate the code as "always unused", compared to "maybe unused". Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <4AEE2CEC.8040206@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Rusty Russell
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e0fdb0e050 |
percpu: add __percpu for sparse.
We have to make __kernel "__attribute__((address_space(0)))" so we can cast to it. tj: * put_cpu_var() update. * Annotations added to dynamic allocator interface. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Tejun Heo <tj@kernel.org> |
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Arjan van de Ven
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63312b6a6f |
x86: Add a Kconfig option to turn the copy_from_user warnings into errors
For automated testing it is useful to have the option to turn the warnings on copy_from_user() etc checks into errors: In function ‘copy_from_user’, inlined from ‘fd_copyin’ at drivers/block/floppy.c:3080, inlined from ‘fd_ioctl’ at drivers/block/floppy.c:3503: linux/arch/x86/include/asm/uaccess_32.h:213: error: call to ‘copy_from_user_overflow’ declared with attribute error: copy_from_user buffer size is not provably correct Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <20091002075050.4e9f7641@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Arjan van de Ven
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4a31276930 |
x86: Turn the copy_from_user check into an (optional) compile time warning
A previous patch added the buffer size check to copy_from_user(). One of the things learned from analyzing the result of the previous patch is that in general, gcc is really good at proving that the code contains sufficient security checks to not need to do a runtime check. But that for those cases where gcc could not prove this, there was a relatively high percentage of real security issues. This patch turns the case of "gcc cannot prove" into a compile time warning, as long as a sufficiently new gcc is in use that supports this. The objective is that these warnings will trigger developers checking new cases out before a security hole enters a linux kernel release. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: James Morris <jmorris@namei.org> Cc: Jan Beulich <jbeulich@novell.com> LKML-Reference: <20090930130523.348ae6c4@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Arjan van de Ven
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9f0cf4adb6 |
x86: Use __builtin_object_size() to validate the buffer size for copy_from_user()
gcc (4.x) supports the __builtin_object_size() builtin, which reports the size of an object that a pointer point to, when known at compile time. If the buffer size is not known at compile time, a constant -1 is returned. This patch uses this feature to add a sanity check to copy_from_user(); if the target buffer is known to be smaller than the copy size, the copy is aborted and a WARNing is emitted in memory debug mode. These extra checks compile away when the object size is not known, or if both the buffer size and the copy length are constants. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> LKML-Reference: <20090926143301.2c396b94@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Rusty Russell
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d2c123c27d |
module_param: add __same_type convenience wrapper for __builtin_types_compatible_p
Impact: new API __builtin_types_compatible_p() is a little awkward to use: it takes two types rather than types or variables, and it's just damn long. (typeof(type) == type, so this works on types as well as vars). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> |
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Linus Torvalds
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ab3c9c686e |
branch tracer, intel-iommu: fix build with CONFIG_BRANCH_TRACER=y
Fix the branch tracer barfing on comma statements within if () statements. Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Bart Van Assche
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d9ad8bc0ca |
branch tracer: Fix for enabling branch profiling makes sparse unusable
One of the changes between kernels 2.6.28 and 2.6.29 is that a branch profiler has been added for if() statements. Unfortunately this patch makes the sparse output unusable with CONFIG_TRACE_BRANCH_PROFILING=y: when branch profiling is enabled, sparse prints so much false positives that the real issues are no longer visible. This behavior can be reproduced as follows: * enable CONFIG_TRACE_BRANCH_PROFILING, e.g. by running make allyesconfig or make allmodconfig. * run make C=2 Result: a huge number of the following sparse warnings. ... include/linux/cpumask.h:547:2: warning: symbol '______r' shadows an earlier one include/linux/cpumask.h:547:2: originally declared here ... The patch below fixes this by disabling branch profiling while analyzing the kernel code with sparse. See also: * http://lkml.org/lkml/2008/11/21/18 * http://bugzilla.kernel.org/show_bug.cgi?id=12925 Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Steven Rostedt <srostedt@redhat.com> LKML-Reference: <200904051620.02311.bart.vanassche@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Witold Baryluk
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97e7e4f391 |
tracing: optimization of branch tracer
Impact: better performance for if branch tracer Use an array to count the hit and misses of a conditional instead of using another conditional. This cuts down on saturation of branch predictions and increases performance of modern pipelined architectures. Signed-off-by: Witold Baryluk <baryluk@smp.if.uj.edu.pl> Signed-off-by: Steven Rostedt <srostedt@redhat.com> |
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Linus Torvalds
|
f153b82121 |
Sanitize gcc version header includes
- include the gcc version-dependent header files from the generic gcc header file, rather than the other way around (iow: don't make the non-gcc header file have to know about gcc versions) - don't include compiler-gcc4.h for gcc 5 (for whenever it gets released). That's just confusing and made us do odd things in the gcc4 header file (testing that we really had version 4!) - generate the name from the __GNUC__ version directly, rather than having a mess of #if conditionals. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Steven Rostedt
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2bcd521a68 |
trace: profile all if conditionals
Impact: feature to profile if statements This patch adds a branch profiler for all if () statements. The results will be found in: /debugfs/tracing/profile_branch For example: miss hit % Function File Line ------- --------- - -------- ---- ---- 0 1 100 x86_64_start_reservations head64.c 127 0 1 100 copy_bootdata head64.c 69 1 0 0 x86_64_start_kernel head64.c 111 32 0 0 set_intr_gate desc.h 319 1 0 0 reserve_ebda_region head.c 51 1 0 0 reserve_ebda_region head.c 47 0 1 100 reserve_ebda_region head.c 42 0 0 X maxcpus main.c 165 Miss means the branch was not taken. Hit means the branch was taken. The percent is the percentage the branch was taken. This adds a significant amount of overhead and should only be used by those analyzing their system. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Steven Rostedt
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45b797492a |
trace: consolidate unlikely and likely profiler
Impact: clean up to make one profiler of like and unlikely tracer The likely and unlikely profiler prints out the file and line numbers of the annotated branches that it is profiling. It shows the number of times it was correct or incorrect in its guess. Having two different files or sections for that matter to tell us if it was a likely or unlikely is pretty pointless. We really only care if it was correct or not. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Steven Rostedt
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42f565e116 |
trace: remove extra assign in branch check
Impact: clean up of branch check The unlikely/likely profiler does an extra assign of the f.line. This is not needed since it is already calculated at compile time. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Steven Rostedt
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2ed84eeb88 |
trace: rename unlikely profiler to branch profiler
Impact: name change of unlikely tracer and profiler Ingo Molnar suggested changing the config from UNLIKELY_PROFILE to BRANCH_PROFILING. I never did like the "unlikely" name so I went one step farther, and renamed all the unlikely configurations to a "BRANCH" variant. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Ingo Molnar
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2b7d0390a6 |
tracing: branch tracer, fix vdso crash
Impact: fix bootup crash the branch tracer missed arch/x86/vdso/vclock_gettime.c from disabling tracing, which caused such bootup crashes: [ 201.840097] init[1]: segfault at 7fffed3fe7c0 ip 00007fffed3fea2e sp 000077 also clean up the ugly ifdefs in arch/x86/kernel/vsyscall_64.c by creating DISABLE_UNLIKELY_PROFILE facility for code to turn off instrumentation on a per file basis. Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Steven Rostedt
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1f0d69a9fc |
tracing: profile likely and unlikely annotations
Impact: new unlikely/likely profiler Andrew Morton recently suggested having an in-kernel way to profile likely and unlikely macros. This patch achieves that goal. When configured, every(*) likely and unlikely macro gets a counter attached to it. When the condition is hit, the hit and misses of that condition are recorded. These numbers can later be retrieved by: /debugfs/tracing/profile_likely - All likely markers /debugfs/tracing/profile_unlikely - All unlikely markers. # cat /debug/tracing/profile_unlikely | head correct incorrect % Function File Line ------- --------- - -------- ---- ---- 2167 0 0 do_arch_prctl process_64.c 832 0 0 0 do_arch_prctl process_64.c 804 2670 0 0 IS_ERR err.h 34 71230 5693 7 __switch_to process_64.c 673 76919 0 0 __switch_to process_64.c 639 43184 33743 43 __switch_to process_64.c 624 12740 64181 83 __switch_to process_64.c 594 12740 64174 83 __switch_to process_64.c 590 # cat /debug/tracing/profile_unlikely | \ awk '{ if ($3 > 25) print $0; }' |head -20 44963 35259 43 __switch_to process_64.c 624 12762 67454 84 __switch_to process_64.c 594 12762 67447 84 __switch_to process_64.c 590 1478 595 28 syscall_get_error syscall.h 51 0 2821 100 syscall_trace_leave ptrace.c 1567 0 1 100 native_smp_prepare_cpus smpboot.c 1237 86338 265881 75 calc_delta_fair sched_fair.c 408 210410 108540 34 calc_delta_mine sched.c 1267 0 54550 100 sched_info_queued sched_stats.h 222 51899 66435 56 pick_next_task_fair sched_fair.c 1422 6 10 62 yield_task_fair sched_fair.c 982 7325 2692 26 rt_policy sched.c 144 0 1270 100 pre_schedule_rt sched_rt.c 1261 1268 48073 97 pick_next_task_rt sched_rt.c 884 0 45181 100 sched_info_dequeued sched_stats.h 177 0 15 100 sched_move_task sched.c 8700 0 15 100 sched_move_task sched.c 8690 53167 33217 38 schedule sched.c 4457 0 80208 100 sched_info_switch sched_stats.h 270 30585 49631 61 context_switch sched.c 2619 # cat /debug/tracing/profile_likely | awk '{ if ($3 > 25) print $0; }' 39900 36577 47 pick_next_task sched.c 4397 20824 15233 42 switch_mm mmu_context_64.h 18 0 7 100 __cancel_work_timer workqueue.c 560 617 66484 99 clocksource_adjust timekeeping.c 456 0 346340 100 audit_syscall_exit auditsc.c 1570 38 347350 99 audit_get_context auditsc.c 732 0 345244 100 audit_syscall_entry auditsc.c 1541 38 1017 96 audit_free auditsc.c 1446 0 1090 100 audit_alloc auditsc.c 862 2618 1090 29 audit_alloc auditsc.c 858 0 6 100 move_masked_irq migration.c 9 1 198 99 probe_sched_wakeup trace_sched_switch.c 58 2 2 50 probe_wakeup trace_sched_wakeup.c 227 0 2 100 probe_wakeup_sched_switch trace_sched_wakeup.c 144 4514 2090 31 __grab_cache_page filemap.c 2149 12882 228786 94 mapping_unevictable pagemap.h 50 4 11 73 __flush_cpu_slab slub.c 1466 627757 330451 34 slab_free slub.c 1731 2959 61245 95 dentry_lru_del_init dcache.c 153 946 1217 56 load_elf_binary binfmt_elf.c 904 102 82 44 disk_put_part genhd.h 206 1 1 50 dst_gc_task dst.c 82 0 19 100 tcp_mss_split_point tcp_output.c 1126 As you can see by the above, there's a bit of work to do in rethinking the use of some unlikelys and likelys. Note: the unlikely case had 71 hits that were more than 25%. Note: After submitting my first version of this patch, Andrew Morton showed me a version written by Daniel Walker, where I picked up the following ideas from: 1) Using __builtin_constant_p to avoid profiling fixed values. 2) Using __FILE__ instead of instruction pointers. 3) Using the preprocessor to stop all profiling of likely annotations from vsyscall_64.c. Thanks to Andrew Morton, Arjan van de Ven, Theodore Tso and Ingo Molnar for their feed back on this patch. (*) Not ever unlikely is recorded, those that are used by vsyscalls (a few of them) had to have profiling disabled. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Theodore Tso <tytso@mit.edu> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Steven Rostedt
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28614889bc |
ftrace: move notrace to compiler.h
The notrace define belongs in compiler.h so that it can be used in init.h Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Paul E. McKenney
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ded00a56e9 |
rcu: remove redundant ACCESS_ONCE definition from rcupreempt.c
Remove the redundant definition of ACCESS_ONCE() from rcupreempt.c in favor of the one in compiler.h. Also merge the comment header from rcupreempt.c's definition into that in compiler.h. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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Linus Torvalds
|
9c3cdc1f83 |
Move ACCESS_ONCE() to <linux/compiler.h>
It actually makes much more sense there, and we do tend to need it for non-RCU usage too. Moving it to <linux/compiler.h> will allow some other cases that have open-coded the same logic to use the same helper function that RCU has used. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andrew Morton
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735c4fb916 |
add noinline_for_stack
People are adding `noinline' in various places to prevent excess stack consumption due to gcc inlining. But once this is done, it is quite unobvious why the `noinline' is present in the code. We can comment each and every site, or we can use noinline_for_stack. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Adrian Bunk
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3ff6eecca4 |
remove __attribute_used__
Remove the deprecated __attribute_used__. [Introduce __section in a few places to silence checkpatch /sam] Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> |
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Sam Ravnborg
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f3fe866d59 |
compiler.h: introduce __section()
Add a new helper: __section() that makes a section definition much shorter and more readable. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> |
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Jeff Garzik
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de48844398 |
Permit silencing of __deprecated warnings.
The __deprecated marker is quite useful in highlighting the remnants of old APIs that want removing. However, it is quite normal for one or more years to pass, before the (usually ancient, bitrotten) code in question is either updated or deleted. Thus, like __must_check, add a Kconfig option that permits the silencing of this compiler warning. This change mimics the ifdef-ery and Kconfig defaults of MUST_CHECK as closely as possible. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ralf Baechle
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e8c44319c6 |
Replace __attribute_pure__ with __pure
To be consistent with the use of attributes in the rest of the kernel replace all use of __attribute_pure__ with __pure and delete the definition of __attribute_pure__. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: Russell King <rmk@arm.linux.org.uk> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Al Viro
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c47ffe3d3d |
make __chk_{user,io}_ptr() accept pointers to volatile
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andi Kleen
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a586df067a |
x86: Support __attribute__((__cold__)) in gcc 4.3
gcc 4.3 supports a new __attribute__((__cold__)) to mark functions cold. Any path directly leading to a call of this function will be unlikely. And gcc will try to generate smaller code for the function itself. Please use with care. The code generation advantage isn't large and in most cases it is not worth uglifying code with this. This patch marks some common error functions like panic(), printk() as cold. This will longer term make many unlikely()s unnecessary, although we can keep them for now for older compilers. BUG is not marked cold because there is currently no way to tell gcc to mark a inline function told. Also all __init and __exit functions are marked cold. With a non -Os build this will tell the compiler to generate slightly smaller code for them. I think it currently only uses less alignments for labels, but that might change in the future. One disadvantage over *likely() is that they cannot be easily instrumented to verify them. Another drawback is that only the latest gcc 4.3 snapshots support this. Unfortunately we cannot detect this using the preprocessor. This means older snapshots will fail now. I don't think that's a problem because they are unreleased compilers that nobody should be using. gcc also has a __hot__ attribute, but I don't see any sense in using this in the kernel right now. But someday I hope gcc will be able to use more aggressive optimizing for hot functions even in -Os, if that happens it should be added. Includes compile fix from Thomas Gleixner. Cc: Jan Hubicka <jh@suse.cz> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andi Kleen
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21124a82bb |
x86_64: Support gcc 5 properly
The ifdef tests were broken. Assume it acts like gcc 4 Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Rientjes
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0d7ebbbc6e |
compiler: introduce __used and __maybe_unused
__used is defined to be __attribute__((unused)) for all pre-3.3 gcc compilers to suppress warnings for unused functions because perhaps they are referenced only in inline assembly. It is defined to be __attribute__((used)) for gcc 3.3 and later so that the code is still emitted for such functions. __maybe_unused is defined to be __attribute__((unused)) for both function and variable use if it could possibly be unreferenced due to the evaluation of preprocessor macros. Function prototypes shall be marked with __maybe_unused if the actual definition of the function is dependant on preprocessor macros. No update to compiler-intel.h is necessary because ICC supports both __attribute__((used)) and __attribute__((unused)) as specified by the gcc manual. __attribute_used__ is deprecated and will be removed once all current code is converted to using __used. Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |