Not all toolchains have the baremetal elf targets, RedHat/Fedora ones in particular. So, probe for whether it's available and use the previous (linux) targets if it isn't. Reported-by: Laura Abbott <labbott@redhat.com> Tested-by: Laura Abbott <labbott@redhat.com> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Paul Kocialkowski <contact@paulk.fr> Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Will Deacon <will.deacon@arm.com> Change-Id: Icf5462a8318b347cf11559c1654886c48c7a62b5
Add macros for testing both linker name and version. Bug: 62093296 Bug: 67506682 Change-Id: Icbb13e9bb889017cd4a7457a62dea7e0335c53b5 (am from https://patchwork.kernel.org/patch/10085789/) Signed-off-by: Sami Tolvanen <samitolvanen@google.com> (cherry picked from commit 9403b68067aaa4941facfd260e14bb2b892073f5) Signed-off-by: Dan Aloni <daloni@magicleap.com> Signed-off-by: Davide Garberi <dade.garberi@gmail.com>
GNU gold may require different flags than GNU ld. Add a macro for detecting the linker. Bug: 62093296 Bug: 67506682 Change-Id: I777f14bf4fd902de1f8dc73d7ecc3c0403eae5f5 (am from https://patchwork.kernel.org/patch/10085775/) Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Sami Tolvanen <samitolvanen@google.com> (cherry picked from commit 552777bdc1d775bee1ffde43c23ab0b2c4501f35) Signed-off-by: Dan Aloni <daloni@magicleap.com> Signed-off-by: Davide Garberi <dade.garberi@gmail.com>
This change adds macros for testing both compiler name and version. Current cc-version, cc-ifversion etc. macros that test gcc version are left unchanged to prevent compatibility issues with existing tests. Bug: 62093296 Bug: 67506682 Change-Id: I14965fcc21dae8dfe31881b172214bf6f8a9f440 (am from https://patchwork.kernel.org/patch/10085767/) Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Dan Aloni <daloni@magicleap.com> Signed-off-by: Davide Garberi <dade.garberi@gmail.com>
Changes in 4.4.229 s390: fix syscall_get_error for compat processes clk: sunxi: Fix incorrect usage of round_down() i2c: piix4: Detect secondary SMBus controller on AMD AM4 chipsets clk: qcom: msm8916: Fix the address location of pll->config_reg ALSA: isa/wavefront: prevent out of bounds write in ioctl scsi: qla2xxx: Fix issue with adapter's stopping state i2c: pxa: clear all master action bits in i2c_pxa_stop_message() usblp: poison URBs upon disconnect ps3disk: use the default segment boundary vfio/pci: fix memory leaks in alloc_perm_bits() mfd: wm8994: Fix driver operation if loaded as modules scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited event nfsd: Fix svc_xprt refcnt leak when setup callback client failed powerpc/crashkernel: Take "mem=" option into account yam: fix possible memory leak in yam_init_driver mksysmap: Fix the mismatch of '.L' symbols in System.map scsi: sr: Fix sr_probe() missing deallocate of device minor scsi: ibmvscsi: Don't send host info in adapter info MAD after LPM ALSA: usb-audio: Improve frames size computation s390/qdio: put thinint indicator after early error tty: hvc: Fix data abort due to race in hvc_open staging: sm750fb: add missing case while setting FB_VISUAL i2c: pxa: fix i2c_pxa_scream_blue_murder() debug output serial: amba-pl011: Make sure we initialize the port.lock spinlock drivers: base: Fix NULL pointer exception in __platform_driver_probe() if a driver developer is foolish PCI/ASPM: Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges power: supply: smb347-charger: IRQSTAT_D is volatile scsi: mpt3sas: Fix double free warnings dlm: remove BUG() before panic() clk: ti: composite: fix memory leak tty: n_gsm: Fix SOF skipping tty: n_gsm: Fix waking up upper tty layer when room available powerpc/pseries/ras: Fix FWNMI_VALID off by one powerpc/ps3: Fix kexec shutdown hang vfio-pci: Mask cap zero usb/ohci-platform: Fix a warning when hibernating USB: host: ehci-mxc: Add error handling in ehci_mxc_drv_probe() tty: n_gsm: Fix bogus i++ in gsm_data_kick clk: samsung: exynos5433: Add IGNORE_UNUSED flag to sclk_i2s1 watchdog: da9062: No need to ping manually before setting timeout usb: dwc2: gadget: move gadget resume after the core is in L0 state USB: gadget: udc: s3c2410_udc: Remove pointless NULL check in s3c2410_udc_nuke usb: gadget: lpc32xx_udc: don't dereference ep pointer before null check usb: gadget: fix potential double-free in m66592_probe. net: sunrpc: Fix off-by-one issues in 'rpc_ntop6' ASoC: fsl_asrc_dma: Fix dma_chan leak when config DMA channel failed openrisc: Fix issue with argument clobbering for clone/fork gfs2: Allow lock_nolock mount to specify jid=X scsi: iscsi: Fix reference count leak in iscsi_boot_create_kobj lib/zlib: remove outdated and incorrect pre-increment optimization include/linux/bitops.h: avoid clang shift-count-overflow warnings elfnote: mark all .note sections SHF_ALLOC selftests/net: in timestamping, strncpy needs to preserve null byte scsi: acornscsi: Fix an error handling path in acornscsi_probe() usb/xhci-plat: Set PM runtime as active on resume usb/ehci-platform: Set PM runtime as active on resume perf report: Fix NULL pointer dereference in hists__fprintf_nr_sample_events() bcache: fix potential deadlock problem in btree_gc_coalesce block: Fix use-after-free in blkdev_get() libata: Use per port sync for detach drm: encoder_slave: fix refcouting error for modules drm/dp_mst: Reformat drm_dp_check_act_status() a bit drm/qxl: Use correct notify port address when creating cursor ring selinux: fix double free ext4: fix partial cluster initialization when splitting extent drm/dp_mst: Increase ACT retry timeout to 3s sparc64: fix misuses of access_process_vm() in genregs32_[sg]et() block: nr_sects_write(): Disable preemption on seqcount write crypto: algboss - don't wait during notifier callback kprobes: Fix to protect kick_kprobe_optimizer() by kprobe_mutex powerpc/kprobes: Fixes for kprobe_lookup_name() on BE x86/kprobes: Avoid kretprobe recursion bug kretprobe: Prevent triggering kretprobe from within kprobe_flush_task e1000e: Do not wake up the system via WOL if device wakeup is disabled sched/rt, net: Use CONFIG_PREEMPTION.patch net: core: device_rename: Use rwsem instead of a seqcount net: Revert "pkt_sched: fq: use proper locking in fq_dump_stats()" scsi: scsi_devinfo: handle non-terminated strings l2tp: Allow duplicate session creation with UDP net: sched: export __netdev_watchdog_up() fix a braino in "sparc32: fix register window handling in genregs32_[gs]et()" net: fix memleak in register_netdevice() net: usb: ax88179_178a: fix packet alignment padding tg3: driver sleeps indefinitely when EEH errors exceed eeh_max_freezes ip_tunnel: fix use-after-free in ip_tunnel_lookup() tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT ip6_gre: fix use-after-free in ip6gre_tunnel_lookup() tcp: grow window for OOO packets only for SACK flows sctp: Don't advertise IPv4 addresses if ipv6only is set on the socket net: Fix the arp error in some cases net: Do not clear the sock TX queue in sk_set_socket() net: core: reduce recursion limit value mld: fix memory leak in ipv6_mc_destroy_dev() USB: ohci-sm501: Add missed iounmap() in remove usb: dwc2: Postponed gadget registration to the udc class driver usb: add USB_QUIRK_DELAY_INIT for Logitech C922 PCI: Disable MSI for HiSilicon Hip06/Hip07 Root Ports USB: ehci: reopen solution for Synopsys HC bug usb: host: ehci-exynos: Fix error check in exynos_ehci_probe() ALSA: usb-audio: add quirk for Denon DCD-1500RE xhci: Fix incorrect EP_STATE_MASK xhci: Fix enumeration issue when setting max packet size for FS devices. cdc-acm: Add DISABLE_ECHO quirk for Microchip/SMSC chip ALSA: usb-audio: uac1: Invalidate ctl on interrupt ALSA: usb-audio: allow clock source validity interrupts ALSA: usb-audio: Clean up mixer element list traverse ALSA: usb-audio: Fix OOB access of mixer element list xhci: Poll for U0 after disabling USB2 LPM cifs/smb3: Fix data inconsistent when punch hole cifs/smb3: Fix data inconsistent when zero file range efi/esrt: Fix reference count leak in esre_create_sysfs_entry. RDMA/mad: Fix possible memory leak in ib_mad_post_receive_mads() ARM: imx5: add missing put_device() call in imx_suspend_alloc_ocram() usb: gadget: udc: Potential Oops in error handling code netfilter: ipset: fix unaligned atomic access sched/core: Fix PI boosting between RT and DEADLINE tasks net: alx: fix race condition in alx_remove kbuild: improve cc-option to clean up all temporary files blktrace: break out of blktrace setup on concurrent calls ACPI: sysfs: Fix pm_profile_attr type KVM: X86: Fix MSR range of APIC registers in X2APIC mode mm/slab: use memzero_explicit() in kzfree() ocfs2: load global_inode_alloc ocfs2: fix value of OCFS2_INVALID_SLOT ocfs2: fix panic on nfs server over ocfs2 arm64: perf: Report the PC value in REGS_ABI_32 mode tracing: Fix event trigger to accept redundant spaces drm/radeon: fix fb_div check in ni_init_smc_spll_table() sunrpc: fixed rollback in rpc_gssd_dummy_populate() SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment() pNFS/flexfiles: Fix list corruption if the mirror count changes NFSv4 fix CLOSE not waiting for direct IO compeletion PCI: Disable MSI for HiSilicon Hip06/Hip07 only in Root Port mode ALSA: usb-audio: Fix invalid NULL check in snd_emuusb_set_samplerate() Linux 4.4.229 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ic510bbcf5c6e701c747c612876e3ce141757a34a
[ Upstream commit f2f02ebd8f3833626642688b2d2c6a7b3c141fa9 ] When cc-option and friends evaluate compiler flags, the temporary file $$TMP is created as an output object, and automatically cleaned up. The actual file path of $$TMP is .<pid>.tmp, here <pid> is the process ID of $(shell ...) invoked from cc-option. (Please note $$$$ is the escape sequence of $$). Such garbage files are cleaned up in most cases, but some compiler flags create additional output files. For example, -gsplit-dwarf creates a .dwo file. When CONFIG_DEBUG_INFO_SPLIT=y, you will see a bunch of .<pid>.dwo files left in the top of build directories. You may not notice them unless you do 'ls -a', but the garbage files will increase every time you run 'make'. This commit changes the temporary object path to .tmp_<pid>/tmp, and removes .tmp_<pid> directory when exiting. Separate build artifacts such as *.dwo will be cleaned up all together because their file paths are usually determined based on the base name of the object. Another example is -ftest-coverage, which outputs the coverage data into <base-name-of-object>.gcno Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Changes in 4.4.180 kbuild: simplify ld-option implementation KVM: fail KVM_SET_VCPU_EVENTS with invalid exception number cifs: do not attempt cifs operation on smb2+ rename error MIPS: scall64-o32: Fix indirect syscall number load trace: Fix preempt_enable_no_resched() abuse sched/numa: Fix a possible divide-by-zero ceph: ensure d_name stability in ceph_dentry_hash() ceph: fix ci->i_head_snapc leak nfsd: Don't release the callback slot unless it was actually held sunrpc: don't mark uninitialised items as VALID. USB: Add new USB LPM helpers USB: Consolidate LPM checks to avoid enabling LPM twice powerpc/xmon: Add RFI flush related fields to paca dump powerpc/64s: Improve RFI L1-D cache flush fallback powerpc/pseries: Support firmware disable of RFI flush powerpc/powernv: Support firmware disable of RFI flush powerpc/rfi-flush: Move the logic to avoid a redo into the debugfs code powerpc/rfi-flush: Make it possible to call setup_rfi_flush() again powerpc/rfi-flush: Always enable fallback flush on pseries powerpc/rfi-flush: Differentiate enabled and patched flush types powerpc/pseries: Add new H_GET_CPU_CHARACTERISTICS flags powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration powerpc: Add security feature flags for Spectre/Meltdown powerpc/pseries: Set or clear security feature flags powerpc/powernv: Set or clear security feature flags powerpc/64s: Move cpu_show_meltdown() powerpc/64s: Enhance the information in cpu_show_meltdown() powerpc/powernv: Use the security flags in pnv_setup_rfi_flush() powerpc/pseries: Use the security flags in pseries_setup_rfi_flush() powerpc/64s: Wire up cpu_show_spectre_v1() powerpc/64s: Wire up cpu_show_spectre_v2() powerpc/pseries: Fix clearing of security feature flags powerpc: Move default security feature flags powerpc/pseries: Restore default security feature flags on setup powerpc/64s: Fix section mismatch warnings from setup_rfi_flush() powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit powerpc/64s: Add barrier_nospec powerpc/64s: Add support for ori barrier_nospec patching powerpc/64s: Patch barrier_nospec in modules powerpc/64s: Enable barrier_nospec based on firmware settings powerpc/64: Use barrier_nospec in syscall entry powerpc: Use barrier_nospec in copy_from_user() powerpc/64s: Enhance the information in cpu_show_spectre_v1() powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2 powerpc/64: Disable the speculation barrier from the command line powerpc/64: Make stf barrier PPC_BOOK3S_64 specific. powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC powerpc/64: Call setup_barrier_nospec() from setup_arch() powerpc/64: Make meltdown reporting Book3S 64 specific powerpc/fsl: Add barrier_nospec implementation for NXP PowerPC Book3E powerpc/asm: Add a patch_site macro & helpers for patching instructions powerpc/64s: Add new security feature flags for count cache flush powerpc/64s: Add support for software count cache flush powerpc/pseries: Query hypervisor for count cache flush settings powerpc/powernv: Query firmware for count cache flush settings powerpc: Avoid code patching freed init sections powerpc/fsl: Add infrastructure to fixup branch predictor flush powerpc/fsl: Add macro to flush the branch predictor powerpc/fsl: Fix spectre_v2 mitigations reporting powerpc/fsl: Add nospectre_v2 command line argument powerpc/fsl: Flush the branch predictor at each kernel entry (64bit) powerpc/fsl: Update Spectre v2 reporting powerpc/security: Fix spectre_v2 reporting powerpc/fsl: Fix the flush of branch predictor. tipc: handle the err returned from cmd header function slip: make slhc_free() silently accept an error pointer intel_th: gth: Fix an off-by-one in output unassigning fs/proc/proc_sysctl.c: Fix a NULL pointer dereference NFS: Forbid setting AF_INET6 to "struct sockaddr_in"->sin_family. netfilter: ebtables: CONFIG_COMPAT: drop a bogus WARN_ON tipc: check bearer name with right length in tipc_nl_compat_bearer_enable tipc: check link name with right length in tipc_nl_compat_link_set bpf: reject wrong sized filters earlier Revert "block/loop: Use global lock for ioctl() operation." ipv4: add sanity checks in ipv4_link_failure() team: fix possible recursive locking when add slaves net: stmmac: move stmmac_check_ether_addr() to driver probe ipv4: set the tcp_min_rtt_wlen range from 0 to one day powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used powerpc/fsl: Flush branch predictor when entering KVM powerpc/fsl: Emulate SPRN_BUCSR register powerpc/fsl: Flush the branch predictor at each kernel entry (32 bit) powerpc/fsl: Sanitize the syscall table for NXP PowerPC 32 bit platforms powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup' powerpc/fsl: Add FSL_PPC_BOOK3E as supported arch for nospectre_v2 boot arg Documentation: Add nospectre_v1 parameter usbnet: ipheth: prevent TX queue timeouts when device not ready usbnet: ipheth: fix potential null pointer dereference in ipheth_carrier_set qlcnic: Avoid potential NULL pointer dereference netfilter: bridge: set skb transport_header before entering NF_INET_PRE_ROUTING sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init() usb: gadget: net2280: Fix overrun of OUT messages usb: gadget: net2280: Fix net2280_dequeue() usb: gadget: net2272: Fix net2272_dequeue() ARM: dts: pfla02: increase phy reset duration net: ks8851: Dequeue RX packets explicitly net: ks8851: Reassert reset pin if chip ID check fails net: ks8851: Delay requesting IRQ until opened net: ks8851: Set initial carrier state to down net: xilinx: fix possible object reference leak net: ibm: fix possible object reference leak net: ethernet: ti: fix possible object reference leak scsi: qla4xxx: fix a potential NULL pointer dereference usb: u132-hcd: fix resource leak ceph: fix use-after-free on symlink traversal scsi: zfcp: reduce flood of fcrscn1 trace records on multi-element RSCN libata: fix using DMA buffers on stack kconfig/[mn]conf: handle backspace (^H) key vfio/type1: Limit DMA mappings per container ALSA: line6: use dynamic buffers ipv4: ip_do_fragment: Preserve skb_iif during fragmentation ipv6/flowlabel: wait rcu grace period before put_pid() ipv6: invert flowlabel sharing check in process and user mode bnxt_en: Improve multicast address setup logic. packet: validate msg_namelen in send directly USB: yurex: Fix protection fault after device removal USB: w1 ds2490: Fix bug caused by improper use of altsetting array USB: core: Fix unterminated string returned by usb_string() USB: core: Fix bug caused by duplicate interface PM usage counter HID: debug: fix race condition with between rdesc_show() and device removal rtc: sh: Fix invalid alarm warning for non-enabled alarm igb: Fix WARN_ONCE on runtime suspend bonding: show full hw address in sysfs for slave entries jffs2: fix use-after-free on symlink traversal debugfs: fix use-after-free on symlink traversal rtc: da9063: set uie_unsupported when relevant vfio/pci: use correct format characters scsi: storvsc: Fix calculation of sub-channel count net: hns: Use NAPI_POLL_WEIGHT for hns driver net: hns: Fix WARNING when remove HNS driver with SMMU enabled hugetlbfs: fix memory leak for resv_map xsysace: Fix error handling in ace_setup ARM: orion: don't use using 64-bit DMA masks ARM: iop: don't use using 64-bit DMA masks usb: usbip: fix isoc packet num validation in get_pipe staging: iio: adt7316: allow adt751x to use internal vref for all dacs staging: iio: adt7316: fix the dac read calculation staging: iio: adt7316: fix the dac write calculation Input: snvs_pwrkey - initialize necessary driver data before enabling IRQ selinux: never allow relabeling on context mounts x86/mce: Improve error message when kernel cannot recover, p2 media: v4l2: i2c: ov7670: Fix PLL bypass register values scsi: libsas: fix a race condition when smp task timeout ASoC:soc-pcm:fix a codec fixup issue in TDM case ASoC: cs4270: Set auto-increment bit for register writes ASoC: tlv320aic32x4: Fix Common Pins perf/x86/intel: Fix handling of wakeup_events for multi-entry PEBS scsi: csiostor: fix missing data copy in csio_scsi_err_handler() iommu/amd: Set exclusion range correctly genirq: Prevent use-after-free and work list corruption usb: dwc3: Fix default lpm_nyet_threshold value scsi: qla2xxx: Fix incorrect region-size setting in optrom SYSFS routines Bluetooth: hidp: fix buffer overflow Bluetooth: Align minimum encryption key size for LE and BR/EDR connections UAS: fix alignment of scatter/gather segments ipv6: fix a potential deadlock in do_ipv6_setsockopt() ASoC: Intel: avoid Oops if DMA setup fails timer/debug: Change /proc/timer_stats from 0644 to 0600 netfilter: compat: initialize all fields in xt_init platform/x86: sony-laptop: Fix unintentional fall-through iio: adc: xilinx: fix potential use-after-free on remove HID: input: add mapping for Expose/Overview key HID: input: add mapping for keyboard Brightness Up/Down/Toggle keys libnvdimm/btt: Fix a kmemdup failure check s390/dasd: Fix capacity calculation for large volumes s390/3270: fix lockdep false positive on view->lock KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing tools lib traceevent: Fix missing equality check for strcmp init: initialize jump labels before command line option parsing ipvs: do not schedule icmp errors from tunnels s390: ctcm: fix ctcm_new_device error return code selftests/net: correct the return value for run_netsocktests gpu: ipu-v3: dp: fix CSC handling cw1200: fix missing unlock on error in cw1200_hw_scan() x86/vdso: Pass --eh-frame-hdr to the linker Don't jump to compute_result state from check_result state locking/static_keys: Provide DECLARE and well as DEFINE macros x86/microcode/intel: Add a helper which gives the microcode revision x86: stop exporting msr-index.h to userland bitops: avoid integer overflow in GENMASK(_ULL) x86/microcode/intel: Check microcode revision before updating sibling threads x86/MCE: Save microcode revision in machine check records x86/cpufeatures: Hide AMD-specific speculation flags x86/speculation: Support Enhanced IBRS on future CPUs x86/speculation: Simplify the CPU bug detection logic x86/bugs: Add AMD's variant of SSB_NO x86/bugs: Add AMD's SPEC_CTRL MSR usage x86/bugs: Switch the selection of mitigation from CPU vendor to CPU features locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a new <linux/bits.h> file x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation x86/microcode: Make sure boot_cpu_data.microcode is up-to-date x86/microcode: Update the new microcode revision unconditionally x86/cpu: Sanitize FAM6_ATOM naming KVM: x86: SVM: Call x86_spec_ctrl_set_guest/host() with interrupts disabled x86/mm: Use WRITE_ONCE() when setting PTEs x86/speculation: Apply IBPB more strictly to avoid cross-process data leak x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation x86/speculation: Propagate information about RSB filling mitigation to sysfs x86/speculation: Update the TIF_SSBD comment x86/speculation: Clean up spectre_v2_parse_cmdline() x86/speculation: Remove unnecessary ret variable in cpu_show_common() x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common() x86/speculation: Disable STIBP when enhanced IBRS is in use x86/speculation: Rename SSBD update functions x86/speculation: Reorganize speculation control MSRs update x86/Kconfig: Select SCHED_SMT if SMP enabled sched: Add sched_smt_active() x86/speculation: Rework SMT state change x86/speculation: Reorder the spec_v2 code x86/speculation: Mark string arrays const correctly x86/speculataion: Mark command line parser data __initdata x86/speculation: Unify conditional spectre v2 print functions x86/speculation: Add command line control for indirect branch speculation x86/speculation: Prepare for per task indirect branch speculation control x86/process: Consolidate and simplify switch_to_xtra() code x86/speculation: Avoid __switch_to_xtra() calls x86/speculation: Prepare for conditional IBPB in switch_mm() x86/speculation: Split out TIF update x86/speculation: Prepare arch_smt_update() for PRCTL mode x86/speculation: Prevent stale SPEC_CTRL msr content x86/speculation: Add prctl() control for indirect branch speculation x86/speculation: Enable prctl mode for spectre_v2_user x86/speculation: Add seccomp Spectre v2 user space protection mode x86/speculation: Provide IBPB always command line options kvm: x86: Report STIBP on GET_SUPPORTED_CPUID x86/msr-index: Cleanup bit defines x86/speculation: Consolidate CPU whitelists x86/speculation/mds: Add basic bug infrastructure for MDS x86/speculation/mds: Add BUG_MSBDS_ONLY x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests x86/speculation/mds: Add mds_clear_cpu_buffers() x86/speculation/mds: Clear CPU buffers on exit to user x86/speculation/mds: Conditionally clear CPU buffers on idle entry x86/speculation/mds: Add mitigation control for MDS x86/speculation/l1tf: Document l1tf in sysfs x86/speculation/mds: Add sysfs reporting for MDS x86/speculation/mds: Add mitigation mode VMWERV Documentation: Move L1TF to separate directory Documentation: Add MDS vulnerability documentation x86/cpu/bugs: Use __initconst for 'const' init data x86/speculation: Move arch_smt_update() call to after mitigation decisions x86/speculation/mds: Add SMT warning message x86/speculation/mds: Fix comment x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off cpu/speculation: Add 'mitigations=' cmdline option x86/speculation: Support 'mitigations=' cmdline option x86/speculation/mds: Add 'mitigations=' support for MDS x86/mds: Add MDSUM variant to the MDS documentation Documentation: Correct the possible MDS sysfs values x86/speculation/mds: Fix documentation typo x86/bugs: Change L1TF mitigation string to match upstream USB: serial: use variable for status USB: serial: fix unthrottle races powerpc/64s: Include cpu header bridge: Fix error path for kobject_init_and_add() net: ucc_geth - fix Oops when changing number of buffers in the ring packet: Fix error path in packet_init vlan: disable SIOCSHWTSTAMP in container vrf: sit mtu should not be updated when vrf netdev is the link ipv4: Fix raw socket lookup for local traffic bonding: fix arp_validate toggling in active-backup mode drivers/virt/fsl_hypervisor.c: dereferencing error pointers in ioctl drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl powerpc/booke64: set RI in default MSR powerpc/lib: fix book3s/32 boot failure due to code patching Linux 4.4.180 Change-Id: I72f6c596cc992689d95abc8b5d1303d6ec22b051 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 0294e6f4a0006856e1f36b8cd8fa088d9e499e98 upstream.
Currently, linker options are tested by the coordination of $(CC) and
$(LD) because $(LD) needs some object to link.
As commit 86a9df597cdd ("kbuild: fix linker feature test macros when
cross compiling with Clang") addressed, we need to make sure $(CC)
and $(LD) agree the underlying architecture of the passed object.
This could be a bit complex when we combine tools from different groups.
For example, we can use clang for $(CC), but we still need to rely on
GCC toolchain for $(LD).
So, I was searching for a way of standalone testing of linker options.
A trick I found is to use '-v'; this not only prints the version string,
but also tests if the given option is recognized.
If a given option is supported,
$ aarch64-linux-gnu-ld -v --fix-cortex-a53-843419
GNU ld (Linaro_Binutils-2017.11) 2.28.2.20170706
$ echo $?
0
If unsupported,
$ aarch64-linux-gnu-ld -v --fix-cortex-a53-843419
GNU ld (crosstool-NG linaro-1.13.1-4.7-2013.04-20130415 - Linaro GCC 2013.04) 2.23.1
aarch64-linux-gnu-ld: unrecognized option '--fix-cortex-a53-843419'
aarch64-linux-gnu-ld: use the --help option for usage information
$ echo $?
1
Gold works likewise.
$ aarch64-linux-gnu-ld.gold -v --fix-cortex-a53-843419
GNU gold (Linaro_Binutils-2017.11 2.28.2.20170706) 1.14
masahiro@pug:~/ref/linux$ echo $?
0
$ aarch64-linux-gnu-ld.gold -v --fix-cortex-a53-999999
GNU gold (Linaro_Binutils-2017.11 2.28.2.20170706) 1.14
aarch64-linux-gnu-ld.gold: --fix-cortex-a53-999999: unknown option
aarch64-linux-gnu-ld.gold: use the --help option for usage information
$ echo $?
1
LLD too.
$ ld.lld -v --gc-sections
LLD 7.0.0 (http://llvm.org/git/lld.git 4a0e4190e74cea19f8a8dc625ccaebdf8b5d1585) (compatible with GNU linkers)
$ echo $?
0
$ ld.lld -v --fix-cortex-a53-843419
LLD 7.0.0 (http://llvm.org/git/lld.git 4a0e4190e74cea19f8a8dc625ccaebdf8b5d1585) (compatible with GNU linkers)
$ echo $?
0
$ ld.lld -v --fix-cortex-a53-999999
ld.lld: error: unknown argument: --fix-cortex-a53-999999
LLD 7.0.0 (http://llvm.org/git/lld.git 4a0e4190e74cea19f8a8dc625ccaebdf8b5d1585) (compatible with GNU linkers)
$ echo $?
1
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
[nc: try-run-cached was added later, just use try-run, which is the
current mainline state]
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Changes in 4.4.165
flow_dissector: do not dissect l4 ports for fragments
ip_tunnel: don't force DF when MTU is locked
net-gro: reset skb->pkt_type in napi_reuse_skb()
tg3: Add PHY reset for 5717/5719/5720 in change ring and flow control paths
ipv6: Fix PMTU updates for UDP/raw sockets in presence of VRF
kbuild: Add better clang cross build support
kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS
kbuild: Consolidate header generation from ASM offset information
kbuild: consolidate redundant sed script ASM offset generation
kbuild: fix asm-offset generation to work with clang
kbuild: drop -Wno-unknown-warning-option from clang options
kbuild, LLVMLinux: Add -Werror to cc-option to support clang
kbuild: use -Oz instead of -Os when using clang
kbuild: Add support to generate LLVM assembly files
modules: mark __inittest/__exittest as __maybe_unused
kbuild: clang: Disable 'address-of-packed-member' warning
crypto: arm64/sha - avoid non-standard inline asm tricks
efi/libstub/arm64: Force 'hidden' visibility for section markers
efi/libstub/arm64: Set -fpie when building the EFI stub
kbuild: fix linker feature test macros when cross compiling with Clang
kbuild: Set KBUILD_CFLAGS before incl. arch Makefile
kbuild: move cc-option and cc-disable-warning after incl. arch Makefile
kbuild: clang: fix build failures with sparse check
kbuild: clang: remove crufty HOSTCFLAGS
kbuild: clang: disable unused variable warnings only when constant
kbuild: set no-integrated-as before incl. arch Makefile
kbuild: allow to use GCC toolchain not in Clang search path
arm64: Disable asm-operand-width warning for clang
x86/kbuild: Use cc-option to enable -falign-{jumps/loops}
crypto, x86: aesni - fix token pasting for clang
x86/mm/kaslr: Use the _ASM_MUL macro for multiplication to work around Clang incompatibility
kbuild: Add __cc-option macro
x86/build: Use __cc-option for boot code compiler options
x86/build: Specify stack alignment for clang
x86/boot: #undef memcpy() et al in string.c
x86/build: Fix stack alignment for CLang
x86/build: Use cc-option to validate stack alignment parameter
reiserfs: propagate errors from fill_with_dentries() properly
hfs: prevent btree data loss on root split
hfsplus: prevent btree data loss on root split
um: Give start_idle_thread() a return code
fs/exofs: fix potential memory leak in mount option parsing
clk: samsung: exynos5420: Enable PERIS clocks for suspend
platform/x86: acerhdf: Add BIOS entry for Gateway LT31 v1.3307
arm64: percpu: Initialize ret in the default case
s390/vdso: add missing FORCE to build targets
netfilter: ipset: actually allow allowable CIDR 0 in hash:net,port,net
s390/mm: Fix ERROR: "__node_distance" undefined!
netfilter: ipset: Correct rcu_dereference() call in ip_set_put_comment()
netfilter: xt_IDLETIMER: add sysfs filename checking routine
hwmon: (ibmpowernv) Remove bogus __init annotations
lib/raid6: Fix arm64 test build
zram: close udev startup race condition as default groups
SUNRPC: drop pointless static qualifier in xdr_get_next_encode_buffer()
gfs2: Put bitmap buffers in put_super
btrfs: fix pinned underflow after transaction aborted
Revert "media: videobuf2-core: don't call memop 'finish' when queueing"
Revert "Bluetooth: h5: Fix missing dependency on BT_HCIUART_SERDEV"
media: v4l: event: Add subscription to list before calling "add" operation
uio: Fix an Oops on load
usb: cdc-acm: add entry for Hiro (Conexant) modem
USB: quirks: Add no-lpm quirk for Raydium touchscreens
usb: quirks: Add delay-init quirk for Corsair K70 LUX RGB
misc: atmel-ssc: Fix section annotation on atmel_ssc_get_driver_data
USB: misc: appledisplay: add 20" Apple Cinema Display
drivers/misc/sgi-gru: fix Spectre v1 vulnerability
ACPI / platform: Add SMB0001 HID to forbidden_id_list
new helper: uaccess_kernel()
HID: uhid: forbid UHID_CREATE under KERNEL_DS or elevated privileges
xhci: Fix USB3 NULL pointer dereference at logical disconnect.
Linux 4.4.165
Change-Id: If1b746469e0ba25819f3b820e703cb53c0b5088d
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 9f3f1fd299768782465cb32cdf0dd4528d11f26b upstream.
cc-option uses KBUILD_CFLAGS and KBUILD_CPPFLAGS when it determines
whether an option is supported or not. This is fine for options used to
build the kernel itself, however some components like the x86 boot code
use a different set of flags.
Add the new macro __cc-option which is a more generic version of
cc-option with additional parameters. One parameter is the compiler
with which the check should be performed, the other the compiler options
to be used instead KBUILD_C*FLAGS.
Refactor cc-option and hostcc-option to use __cc-option and move
hostcc-option to scripts/Kbuild.include.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Michal Marek <mmarek@suse.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[nc: Fix conflicts due to lack of CC_OPTION_CFLAGS and hostcc-option
wasn't added until v4.8 so no point including it in this tree]
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>