# git rev-parse -q --verify 5694cecdb092656a822287a6691aa7ce668c8160^{commit} 5694cecdb092656a822287a6691aa7ce668c8160 already have revision, skipping fetch # git checkout -q -f -B kisskb 5694cecdb092656a822287a6691aa7ce668c8160 # git clean -qxdf # < git log -1 # commit 5694cecdb092656a822287a6691aa7ce668c8160 # Merge: 13e1ad2be3a8 12f799c8c739 # Author: Linus Torvalds # Date: Tue Dec 25 17:41:56 2018 -0800 # # Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux # # Pull arm64 festive updates from Will Deacon: # "In the end, we ended up with quite a lot more than I expected: # # - Support for ARMv8.3 Pointer Authentication in userspace (CRIU and # kernel-side support to come later) # # - Support for per-thread stack canaries, pending an update to GCC # that is currently undergoing review # # - Support for kexec_file_load(), which permits secure boot of a kexec # payload but also happens to improve the performance of kexec # dramatically because we can avoid the sucky purgatory code from # userspace. Kdump will come later (requires updates to libfdt). # # - Optimisation of our dynamic CPU feature framework, so that all # detected features are enabled via a single stop_machine() # invocation # # - KPTI whitelisting of Cortex-A CPUs unaffected by Meltdown, so that # they can benefit from global TLB entries when KASLR is not in use # # - 52-bit virtual addressing for userspace (kernel remains 48-bit) # # - Patch in LSE atomics for per-cpu atomic operations # # - Custom preempt.h implementation to avoid unconditional calls to # preempt_schedule() from preempt_enable() # # - Support for the new 'SB' Speculation Barrier instruction # # - Vectorised implementation of XOR checksumming and CRC32 # optimisations # # - Workaround for Cortex-A76 erratum #1165522 # # - Improved compatibility with Clang/LLD # # - Support for TX2 system PMUS for profiling the L3 cache and DMC # # - Reflect read-only permissions in the linear map by default # # - Ensure MMIO reads are ordered with subsequent calls to Xdelay() # # - Initial support for memory hotplug # # - Tweak the threshold when we invalidate the TLB by-ASID, so that # mremap() performance is improved for ranges spanning multiple PMDs. # # - Minor refactoring and cleanups" # # * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (125 commits) # arm64: kaslr: print PHYS_OFFSET in dump_kernel_offset() # arm64: sysreg: Use _BITUL() when defining register bits # arm64: cpufeature: Rework ptr auth hwcaps using multi_entry_cap_matches # arm64: cpufeature: Reduce number of pointer auth CPU caps from 6 to 4 # arm64: docs: document pointer authentication # arm64: ptr auth: Move per-thread keys from thread_info to thread_struct # arm64: enable pointer authentication # arm64: add prctl control for resetting ptrauth keys # arm64: perf: strip PAC when unwinding userspace # arm64: expose user PAC bit positions via ptrace # arm64: add basic pointer authentication support # arm64/cpufeature: detect pointer authentication # arm64: Don't trap host pointer auth use to EL2 # arm64/kvm: hide ptrauth from guests # arm64/kvm: consistently handle host HCR_EL2 flags # arm64: add pointer authentication register bits # arm64: add comments about EC exception levels # arm64: perf: Treat EXCLUDE_EL* bit definitions as unsigned # arm64: kpti: Whitelist Cortex-A CPUs that don't implement the CSV3 field # arm64: enable per-task stack canaries # ... # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 5694cecdb092656a822287a6691aa7ce668c8160 # < make -s -j 8 ARCH=arm O=/kisskb/build/linus_imx_v6_v7_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- imx_v6_v7_defconfig # make -s -j 8 ARCH=arm O=/kisskb/build/linus_imx_v6_v7_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:152:32: warning: 'levelspread[]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[]' was declared here /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2594:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1855:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/wm8960.c: In function 'wm8960_configure_clocking': /kisskb/src/sound/soc/codecs/wm8960.c:803:70: warning: 'j' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/wm8960.c:800:68: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:341:21: note: 'pdeo' was declared here /kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon': /kisskb/src/net/mac80211/mlme.c:1513:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c:1470:6: note: 'pwr_level_cisco' was declared here In file included from /kisskb/src/drivers/gpu/drm/msm/adreno/a5xx_gpu.c:17:0: /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_set_cold_boot_addr': /kisskb/src/include/linux/qcom_scm.h:73:10: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h:73:10: note: each undeclared identifier is reported only once for each function it appears in /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_set_warm_boot_addr': /kisskb/src/include/linux/qcom_scm.h:78:10: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_hdcp_req': /kisskb/src/include/linux/qcom_scm.h:83:30: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_pas_init_image': /kisskb/src/include/linux/qcom_scm.h:86:31: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_pas_mem_setup': /kisskb/src/include/linux/qcom_scm.h:88:35: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_pas_auth_and_reset': /kisskb/src/include/linux/qcom_scm.h:90:55: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_pas_shutdown': /kisskb/src/include/linux/qcom_scm.h:91:67: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_assign_mem': /kisskb/src/include/linux/qcom_scm.h:95:35: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_set_remote_state': /kisskb/src/include/linux/qcom_scm.h:99:55: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_restore_sec_cfg': /kisskb/src/include/linux/qcom_scm.h:100:80: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_iommu_secure_ptbl_size': /kisskb/src/include/linux/qcom_scm.h:101:86: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_iommu_secure_ptbl_init': /kisskb/src/include/linux/qcom_scm.h:102:92: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_io_readl': /kisskb/src/include/linux/qcom_scm.h:103:84: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/include/linux/qcom_scm.h: In function 'qcom_scm_io_writel': /kisskb/src/include/linux/qcom_scm.h:104:84: error: 'ENODEV' undeclared (first use in this function) /kisskb/src/drivers/gpu/drm/msm/adreno/a5xx_gpu.c: In function 'qcom_scm_set_remote_state': /kisskb/src/include/linux/qcom_scm.h:99:1: warning: control reaches end of non-void function [-Wreturn-type] make[5]: *** [/kisskb/src/scripts/Makefile.build:291: drivers/gpu/drm/msm/adreno/a5xx_gpu.o] Error 1 make[5]: *** Waiting for unfinished jobs.... make[4]: *** [/kisskb/src/scripts/Makefile.build:516: drivers/gpu/drm/msm] Error 2 make[3]: *** [/kisskb/src/scripts/Makefile.build:516: drivers/gpu/drm] Error 2 make[2]: *** [/kisskb/src/scripts/Makefile.build:516: drivers/gpu] Error 2 make[1]: *** [/kisskb/src/Makefile:1055: drivers] Error 2 make[1]: *** Waiting for unfinished jobs.... /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] make: *** [Makefile:152: sub-make] Error 2 Command 'make -s -j 8 ARCH=arm O=/kisskb/build/linus_imx_v6_v7_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_imx_v6_v7_defconfig_arm # Build took: 0:01:37.924062