# git rev-parse -q --verify 95f1fa9e3418d50ce099e67280b5497b9c93843b^{commit} 95f1fa9e3418d50ce099e67280b5497b9c93843b already have revision, skipping fetch # git checkout -q -f -B kisskb 95f1fa9e3418d50ce099e67280b5497b9c93843b # git clean -qxdf # < git log -1 # commit 95f1fa9e3418d50ce099e67280b5497b9c93843b # Merge: 477093b3e144 16c0f03f629a # Author: Linus Torvalds # Date: Wed Nov 27 11:42:01 2019 -0800 # # Merge tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace # # Pull tracing updates from Steven Rostedt: # "New tracing features: # # - New PERMANENT flag to ftrace_ops when attaching a callback to a # function. # # As /proc/sys/kernel/ftrace_enabled when set to zero will disable # all attached callbacks in ftrace, this has a detrimental impact on # live kernel tracing, as it disables all that it patched. If a # ftrace_ops is registered to ftrace with the PERMANENT flag set, it # will prevent ftrace_enabled from being disabled, and if # ftrace_enabled is already disabled, it will prevent a ftrace_ops # with PREMANENT flag set from being registered. # # - New register_ftrace_direct(). # # As eBPF would like to register its own trampolines to be called by # the ftrace nop locations directly, without going through the ftrace # trampoline, this function has been added. This allows for eBPF # trampolines to live along side of ftrace, perf, kprobe and live # patching. It also utilizes the ftrace enabled_functions file that # keeps track of functions that have been modified in the kernel, to # allow for security auditing. # # - Allow for kernel internal use of ftrace instances. # # Subsystems in the kernel can now create and destroy their own # tracing instances which allows them to have their own tracing # buffer, and be able to record events without worrying about other # users from writing over their data. # # - New seq_buf_hex_dump() that lets users use the hex_dump() in their # seq_buf usage. # # - Notifications now added to tracing_max_latency to allow user space # to know when a new max latency is hit by one of the latency # tracers. # # - Wider spread use of generic compare operations for use of bsearch # and friends. # # - More synthetic event fields may be defined (32 up from 16) # # - Use of xarray for architectures with sparse system calls, for the # system call trace events. # # This along with small clean ups and fixes" # # * tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (51 commits) # tracing: Enable syscall optimization for MIPS # tracing: Use xarray for syscall trace events # tracing: Sample module to demonstrate kernel access to Ftrace instances. # tracing: Adding new functions for kernel access to Ftrace instances # tracing: Fix Kconfig indentation # ring-buffer: Fix typos in function ring_buffer_producer # ftrace: Use BIT() macro # ftrace: Return ENOTSUPP when DYNAMIC_FTRACE_WITH_DIRECT_CALLS is not configured # ftrace: Rename ftrace_graph_stub to ftrace_stub_graph # ftrace: Add a helper function to modify_ftrace_direct() to allow arch optimization # ftrace: Add helper find_direct_entry() to consolidate code # ftrace: Add another check for match in register_ftrace_direct() # ftrace: Fix accounting bug with direct->count in register_ftrace_direct() # ftrace/selftests: Fix spelling mistake "wakeing" -> "waking" # tracing: Increase SYNTH_FIELDS_MAX for synthetic_events # ftrace/samples: Add a sample module that implements modify_ftrace_direct() # ftrace: Add modify_ftrace_direct() # tracing: Add missing "inline" in stub function of latency_fsnotify() # tracing: Remove stray tab in TRACE_EVAL_MAP_FILE's help text # tracing: Use seq_buf_hex_dump() to dump buffers # ... # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 95f1fa9e3418d50ce099e67280b5497b9c93843b # < make -s -j 24 ARCH=powerpc O=/kisskb/build/linus_ps3_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ps3_defconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/linus_ps3_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/ipc/shm.c: In function 'ksys_shmdt': /kisskb/src/ipc/shm.c:1712:59: warning: 'file' 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:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl': /kisskb/src/lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bluetooth/hidp/core.c: In function 'hidp_connection_add': /kisskb/src/net/bluetooth/hidp/core.c:1386:18: warning: 'session' 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:338:21: note: 'pdeo' was declared here /kisskb/src/fs/cifs/smb2pdu.c: In function 'SMB2_ioctl_init': /kisskb/src/fs/cifs/smb2pdu.c:2700:19: warning: 'in_data_buf' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic': /kisskb/src/net/core/gen_stats.c:156:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker': /kisskb/src/include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c:222:28: note: 'next' was declared here /kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list': /kisskb/src/net/core/dev.c:3547:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized] /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] /kisskb/src/fs/splice.c: In function '__do_compat_sys_vmsplice': /kisskb/src/fs/splice.c:1394:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/splice.c: In function '__do_sys_vmsplice': /kisskb/src/fs/splice.c:1368:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/wireless/nl80211.c: In function 'nl80211_vendor_cmd_dump': /kisskb/src/net/wireless/nl80211.c:13147:33: warning: 'wdev' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/wireless/nl80211.c:13117:21: warning: 'rdev' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/tx.c: In function 'ieee80211_build_hdr': /kisskb/src/net/mac80211/tx.c:2542:27: warning: 'chanctx_conf' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon': /kisskb/src/net/mac80211/mlme.c:1576:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c:1533:6: note: 'pwr_level_cisco' was declared here /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/linus_ps3_defconfig_powerpc-gcc4.6 # Build took: 0:01:36.433734