# git rev-parse -q --verify 353f7988dd8413c47718f7ca79c030b6fb62cfe5^{commit} 353f7988dd8413c47718f7ca79c030b6fb62cfe5 already have revision, skipping fetch # git checkout -q -f -B kisskb 353f7988dd8413c47718f7ca79c030b6fb62cfe5 # git clean -qxdf # < git log -1 # commit 353f7988dd8413c47718f7ca79c030b6fb62cfe5 # Author: Linus Torvalds # Date: Tue Jul 19 11:09:01 2022 -0700 # # watchqueue: make sure to serialize 'wqueue->defunct' properly # # When the pipe is closed, we mark the associated watchqueue defunct by # calling watch_queue_clear(). However, while that is protected by the # watchqueue lock, new watchqueue entries aren't actually added under that # lock at all: they use the pipe->rd_wait.lock instead, and looking up # that pipe happens without any locking. # # The watchqueue code uses the RCU read-side section to make sure that the # wqueue entry itself hasn't disappeared, but that does not protect the # pipe_info in any way. # # So make sure to actually hold the wqueue lock when posting watch events, # properly serializing against the pipe being torn down. # # Reported-by: Noam Rathaus # Cc: Greg KH # Cc: David Howells # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 353f7988dd8413c47718f7ca79c030b6fb62cfe5 # < make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 allyesconfig # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_KCOV=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n # Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n # Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n # Added to kconfig CONFIG_GCC_PLUGIN_STRUCTLEAK=n # Added to kconfig CONFIG_GCC_PLUGIN_RANDSTRUCT=n # Added to kconfig CONFIG_UML_NET=n # Added to kconfig CONFIG_UML_NET_ETHERTAP=n # Added to kconfig CONFIG_UML_NET_TUNTAP=n # Added to kconfig CONFIG_UML_NET_SLIP=n # Added to kconfig CONFIG_UML_NET_DAEMON=n # Added to kconfig CONFIG_UML_NET_VDE=n # Added to kconfig CONFIG_UML_NET_MCAST=n # Added to kconfig CONFIG_UML_NET_PCAP=n # Added to kconfig CONFIG_UML_NET_SLIRP=n # Added to kconfig CONFIG_GCOV_KERNEL=n # Added to kconfig CONFIG_DEBUG_INFO_BTF=n # Added to kconfig CONFIG_BPF_PRELOAD=n # < make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 help # make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig .config:12581:warning: override: reassigning to symbol GCC_PLUGIN_SANCOV .config:12586:warning: override: reassigning to symbol UML_NET_ETHERTAP .config:12588:warning: override: reassigning to symbol UML_NET_SLIP .config:12591:warning: override: reassigning to symbol UML_NET_MCAST .config:12593:warning: override: reassigning to symbol UML_NET_SLIRP # make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c: In function 'rvt_wss_llc_size': /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c:88:22: error: 'struct cpuinfo_um' has no member named 'x86_cache_size' return boot_cpu_data.x86_cache_size; ^ /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c: In function 'cacheless_memcpy': /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c:100:2: error: implicit declaration of function '__copy_user_nocache' [-Werror=implicit-function-declaration] __copy_user_nocache(dst, (void __user *)src, n, 0); ^ /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c: In function 'rvt_wss_llc_size': /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c:89:1: error: control reaches end of non-void function [-Werror=return-type] } ^ cc1: all warnings being treated as errors make[5]: *** [/kisskb/src/scripts/Makefile.build:249: drivers/infiniband/sw/rdmavt/qp.o] Error 1 make[4]: *** [/kisskb/src/scripts/Makefile.build:466: drivers/infiniband/sw/rdmavt] Error 2 make[3]: *** [/kisskb/src/scripts/Makefile.build:466: drivers/infiniband/sw] Error 2 make[3]: *** Waiting for unfinished jobs.... /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c: In function 'qib_unordered_wc': /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c:149:22: error: 'struct cpuinfo_um' has no member named 'x86_vendor' return boot_cpu_data.x86_vendor != X86_VENDOR_AMD; ^ /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c:149:37: error: 'X86_VENDOR_AMD' undeclared (first use in this function) return boot_cpu_data.x86_vendor != X86_VENDOR_AMD; ^ /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c:149:37: note: each undeclared identifier is reported only once for each function it appears in /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c:150:1: error: control reaches end of non-void function [-Werror=return-type] } ^ cc1: all warnings being treated as errors make[5]: *** [/kisskb/src/scripts/Makefile.build:249: drivers/infiniband/hw/qib/qib_wc_x86_64.o] Error 1 make[5]: *** Waiting for unfinished jobs.... make[4]: *** [/kisskb/src/scripts/Makefile.build:466: drivers/infiniband/hw/qib] Error 2 make[4]: *** Waiting for unfinished jobs.... make[3]: *** [/kisskb/src/scripts/Makefile.build:466: drivers/infiniband/hw] Error 2 make[2]: *** [/kisskb/src/scripts/Makefile.build:466: drivers/infiniband] Error 2 make[2]: *** Waiting for unfinished jobs.... In file included from /kisskb/src/arch/x86/um/asm/processor.h:41:0, from /kisskb/src/include/linux/mutex.h:19, from /kisskb/src/include/linux/kernfs.h:11, from /kisskb/src/include/linux/sysfs.h:16, from /kisskb/src/include/linux/kobject.h:20, from /kisskb/src/include/linux/pci.h:35, from /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:26: /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: In function 'kfd_cpumask_to_apic_id': /kisskb/src/arch/um/include/asm/processor-generic.h:103:18: error: called object is not a function or function pointer #define cpu_data (&boot_cpu_data) ^ /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1610:9: note: in expansion of macro 'cpu_data' return cpu_data(first_cpu_of_numa_node).apicid; ^ /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1614:1: error: control reaches end of non-void function [-Werror=return-type] } ^ cc1: all warnings being treated as errors make[5]: *** [/kisskb/src/scripts/Makefile.build:249: drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.o] Error 1 make[5]: *** Waiting for unfinished jobs.... make[4]: *** [/kisskb/src/scripts/Makefile.build:466: drivers/gpu/drm/amd/amdgpu] Error 2 make[4]: *** Waiting for unfinished jobs.... make[3]: *** [/kisskb/src/scripts/Makefile.build:466: drivers/gpu/drm] Error 2 make[2]: *** [/kisskb/src/scripts/Makefile.build:466: drivers/gpu] Error 2 make[1]: *** [/kisskb/src/Makefile:1843: drivers] Error 2 make: *** [Makefile:219: __sub-make] Error 2 Command 'make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_um-allyesconfig_um-x86_64 # Build took: 0:04:16.539971