# git rev-parse -q --verify 2f87d0916ce0d2925cedbc9e8f5d6291ba2ac7b2^{commit} 2f87d0916ce0d2925cedbc9e8f5d6291ba2ac7b2 already have revision, skipping fetch # git checkout -q -f -B kisskb 2f87d0916ce0d2925cedbc9e8f5d6291ba2ac7b2 # git clean -qxdf # < git log -1 # commit 2f87d0916ce0d2925cedbc9e8f5d6291ba2ac7b2 # Merge: bdc727651223 09661f75e75c # Author: Linus Torvalds # Date: Tue Oct 15 11:18:44 2024 -0700 # # Merge tag 'trace-ringbuffer-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace # # Pull ring-buffer fixes from Steven Rostedt: # # - Fix ref counter of buffers assigned at boot up # # A tracing instance can be created from the kernel command line. If it # maps to memory, it is considered permanent and should not be deleted, # or bad things can happen. If it is not mapped to memory, then the # user is fine to delete it via rmdir from the instances directory. But # the ref counts assumed 0 was free to remove and greater than zero was # not. But this was not the case. When an instance is created, it # should have the reference of 1, and if it should not be removed, it # must be greater than 1. The boot up code set normal instances with a # ref count of 0, which could get removed if something accessed it and # then released it. And memory mapped instances had a ref count of 1 # which meant it could be deleted, and bad things happen. Keep normal # instances ref count as 1, and set memory mapped instances ref count # to 2. # # - Protect sub buffer size (order) updates from other modifications # # When a ring buffer is changing the size of its sub-buffers, no other # operations should be performed on the ring buffer. That includes # reading it. But the locking only grabbed the buffer->mutex that keeps # some operations from touching the ring buffer. It also must hold the # cpu_buffer->reader_lock as well when updates happen as other paths # use that to do some operations on the ring buffer. # # * tag 'trace-ringbuffer-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: # ring-buffer: Fix reader locking when changing the sub buffer order # ring-buffer: Fix refcount setting of boot mapped buffers # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 2f87d0916ce0d2925cedbc9e8f5d6291ba2ac7b2 # make -s -j 160 ARCH=mips O=/kisskb/build/linus_allmodconfig_mips-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- allmodconfig WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # Added to kconfig CONFIG_MIPS_CPS_NS16550_BASE=0x1b0003f8 # Added to kconfig CONFIG_MIPS_CPS_NS16550_SHIFT=0 # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig # < make -s -j 160 ARCH=mips O=/kisskb/build/linus_allmodconfig_mips-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- help # make -s -j 160 ARCH=mips O=/kisskb/build/linus_allmodconfig_mips-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- olddefconfig .config:15343:warning: override: reassigning to symbol MIPS_CPS_NS16550_SHIFT WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] # make -s -j 160 ARCH=mips O=/kisskb/build/linus_allmodconfig_mips-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] /kisskb/src/arch/mips/boot/dts/img/boston.dts:128.17-178.5: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0: '#interrupt-cells' found, but node is not an interrupt provider /kisskb/src/arch/mips/boot/dts/img/boston.dts:136.23-177.6: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0/eg20t_bridge@1,0,0: '#interrupt-cells' found, but node is not an interrupt provider arch/mips/boot/dts/img/boston.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider' Completed OK # rm -rf /kisskb/build/linus_allmodconfig_mips-gcc8.1 # Build took: 0:11:58.584438