Buildresult: linus/um-allmodconfig/um-x86_64 built on Jul 18 2021, 08:09

kisskb

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Status:	Failed
Date/Time:	Jul 18 2021, 08:09
Duration:	0:05:54.411010
Builder:	blade4b
Revision:	Revert "Makefile: Enable -Wimplicit-fallthrough for Clang" (`d936eb23874433caa3e3d841cfa16f5434b85dcf)`
Target:	linus/um-allmodconfig/um-x86_64
Branch:	linus
Compiler:	um-x86_64 (x86_64-linux-gcc.br_real (Buildroot 2017.05) 5.4.0 / GNU ld (GNU Binutils) 2.27)
Config:	allmodconfig (download)
Log:	Download original Possible errors drivers/dma/idxd/perfmon.h:24:13: error: 'struct perf_event' has no member named 'pmu' drivers/dma/idxd/perfmon.h:35:13: error: 'struct perf_event' has no member named 'pmu' drivers/dma/idxd/init.c:805:7: error: implicit declaration of function 'cpu_feature_enabled' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors make[4]: * [scripts/Makefile.build:271: drivers/dma/idxd/init.o] Error 1 make[3]: * [scripts/Makefile.build:514: drivers/dma/idxd] Error 2 drivers/dma/ioat/dca.c:64:18: error: implicit declaration of function 'cpuid_eax' [-Werror=implicit-function-declaration] drivers/dma/ioat/dca.c:74:6: error: implicit declaration of function 'boot_cpu_has' [-Werror=implicit-function-declaration] drivers/dma/ioat/dca.c:17:31: error: implicit declaration of function 'cpuid_ebx' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors make[4]: * [scripts/Makefile.build:271: drivers/dma/ioat/dca.o] Error 1 make[3]: * [scripts/Makefile.build:514: drivers/dma/ioat] Error 2 make[2]: * [scripts/Makefile.build:514: drivers/dma] Error 2 drivers/pci/controller/vmd.c:116:21: error: field 'sysdata' has incomplete type drivers/pci/controller/vmd.c:150:20: error: 'X86_MSI_BASE_ADDRESS_HIGH' undeclared (first use in this function) drivers/pci/controller/vmd.c:151:19: error: 'arch_msi_msg_addr_lo_t {aka struct arch_msi_msg_addr_lo}' has no member named 'base_address' drivers/pci/controller/vmd.c:151:35: error: 'X86_MSI_BASE_ADDRESS_LOW' undeclared (first use in this function) drivers/pci/controller/vmd.c:152:19: error: 'arch_msi_msg_addr_lo_t {aka struct arch_msi_msg_addr_lo}' has no member named 'destid_0_7' drivers/pci/controller/vmd.c:700:4: error: dereferencing pointer to incomplete type 'struct pci_sysdata' drivers/pci/controller/vmd.c:127:1: error: control reaches end of non-void function [-Werror=return-type] cc1: some warnings being treated as errors make[4]: * [scripts/Makefile.build:271: drivers/pci/controller/vmd.o] Error 1 make[3]: * [scripts/Makefile.build:514: drivers/pci/controller] Error 2 make[2]: * [scripts/Makefile.build:514: drivers/pci] Error 2 make[1]: * [Makefile:1841: drivers] Error 2 make: * [Makefile:220: __sub-make] Error 2 Possible warnings (11) .config:11594:warning: override: reassigning to symbol GCC_PLUGIN_SANCOV .config:11597:warning: override: reassigning to symbol GCC_PLUGIN_RANDSTRUCT .config:11599:warning: override: reassigning to symbol UML_NET_ETHERTAP .config:11601:warning: override: reassigning to symbol UML_NET_SLIP .config:11604:warning: override: reassigning to symbol UML_NET_MCAST .config:11606:warning: override: reassigning to symbol UML_NET_SLIRP kernel/trace/trace_osnoise.c:1461:8: warning: 'main' is usually a function [-Wmain] drivers/video/fbdev/riva/fbdev.c:2059:11: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers] drivers/video/fbdev/riva/fbdev.c:2092:11: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers] drivers/video/fbdev/nvidia/nvidia.c:1414:10: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers] drivers/video/fbdev/nvidia/nvidia.c:1439:10: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers] Full Log # git rev-parse -q --verify d936eb23874433caa3e3d841cfa16f5434b85dcf^{commit} d936eb23874433caa3e3d841cfa16f5434b85dcf already have revision, skipping fetch # git checkout -q -f -B kisskb d936eb23874433caa3e3d841cfa16f5434b85dcf # git clean -qxdf # < git log -1 # commit d936eb23874433caa3e3d841cfa16f5434b85dcf # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Thu Jul 15 18:05:31 2021 -0700 # # Revert "Makefile: Enable -Wimplicit-fallthrough for Clang" # # This reverts commit b7eb335e26a9c7f258c96b3962c283c379d3ede0. # # It turns out that the problem with the clang -Wimplicit-fallthrough # warning is not about the kernel source code, but about clang itself, and # that the warning is unusable until clang fixes its broken ways. # # In particular, when you enable this warning for clang, you not only get # warnings about implicit fallthroughs. You also get this: # # warning: fallthrough annotation in unreachable code [-Wimplicit-fallthrough] # # which is completely broken becasue it # # (a) doesn't even tell you where the problem is (seriously: no line # numbers, no filename, no nothing). # # (b) is fundamentally broken anyway, because there are perfectly valid # reasons to have a fallthrough statement even if it turns out that # it can perhaps not be reached. # # In the kernel, an example of that second case is code in the scheduler: # # switch (state) { # case cpuset: # if (IS_ENABLED(CONFIG_CPUSETS)) { # cpuset_cpus_allowed_fallback(p); # state = possible; # break; # } # fallthrough; # case possible: # # where if CONFIG_CPUSETS is enabled you actually never hit the # fallthrough case at all. But that in no way makes the fallthrough # wrong. # # So the warning is completely broken, and enabling it for clang is a very # bad idea. # # In the meantime, we can keep the gcc option enabled, and make the gcc # build use # # -Wimplicit-fallthrough=5 # # which means that we will at least continue to require a proper # fallthrough statement, and that gcc won't silently accept the magic # comment versions. Because gcc does this all correctly, and while the odd # "=5" part is kind of obscure, it's documented in [1]: # # "-Wimplicit-fallthrough=5 doesn’t recognize any comments as # fallthrough comments, only attributes disable the warning" # # so if clang ever fixes its bad behavior we can try enabling it there again. # # Link: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html [1] # Cc: Kees Cook <keescook@chromium.org> # Cc: Gustavo A. R. Silva <gustavoars@kernel.org> # Cc: Nathan Chancellor <nathan@kernel.org> # Cc: Nick Desaulniers <ndesaulniers@google.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /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 d936eb23874433caa3e3d841cfa16f5434b85dcf # < make -s -j 24 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 allmodconfig # 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 24 ARCH=um O=/kisskb/build/linus_um-allmodconfig_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 24 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig .config:11594:warning: override: reassigning to symbol GCC_PLUGIN_SANCOV .config:11597:warning: override: reassigning to symbol GCC_PLUGIN_RANDSTRUCT .config:11599:warning: override: reassigning to symbol UML_NET_ETHERTAP .config:11601:warning: override: reassigning to symbol UML_NET_SLIP .config:11604:warning: override: reassigning to symbol UML_NET_MCAST .config:11606:warning: override: reassigning to symbol UML_NET_SLIRP # make -s -j 24 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 /kisskb/src/kernel/trace/trace_osnoise.c: In function 'start_kthread': /kisskb/src/kernel/trace/trace_osnoise.c:1461:8: warning: 'main' is usually a function [-Wmain] void main = osnoise_main; ^ In file included from /kisskb/src/drivers/dma/idxd/init.c:24:0: /kisskb/src/drivers/dma/idxd/perfmon.h: In function 'event_to_pmu': /kisskb/src/drivers/dma/idxd/perfmon.h:24:13: error: 'struct perf_event' has no member named 'pmu' pmu = event->pmu; ^ /kisskb/src/drivers/dma/idxd/perfmon.h: In function 'event_to_idxd': /kisskb/src/drivers/dma/idxd/perfmon.h:35:13: error: 'struct perf_event' has no member named 'pmu' pmu = event->pmu; ^ /kisskb/src/drivers/dma/idxd/init.c: In function 'idxd_init_module': /kisskb/src/drivers/dma/idxd/init.c:805:7: error: implicit declaration of function 'cpu_feature_enabled' [-Werror=implicit-function-declaration] if (!cpu_feature_enabled(X86_FEATURE_MOVDIR64B)) { ^ cc1: some warnings being treated as errors make[4]: [/kisskb/src/scripts/Makefile.build:271: drivers/dma/idxd/init.o] Error 1 make[3]: * [/kisskb/src/scripts/Makefile.build:514: drivers/dma/idxd] Error 2 make[3]: * Waiting for unfinished jobs.... /kisskb/src/drivers/dma/ioat/dca.c: In function 'dca_enabled_in_bios': /kisskb/src/drivers/dma/ioat/dca.c:64:18: error: implicit declaration of function 'cpuid_eax' [-Werror=implicit-function-declaration] cpuid_level_9 = cpuid_eax(9); ^ /kisskb/src/drivers/dma/ioat/dca.c: In function 'system_has_dca_enabled': /kisskb/src/drivers/dma/ioat/dca.c:74:6: error: implicit declaration of function 'boot_cpu_has' [-Werror=implicit-function-declaration] if (boot_cpu_has(X86_FEATURE_DCA)) ^ /kisskb/src/drivers/dma/ioat/dca.c: In function 'ioat_dca_get_tag': /kisskb/src/drivers/dma/ioat/dca.c:17:31: error: implicit declaration of function 'cpuid_ebx' [-Werror=implicit-function-declaration] #define cpu_physical_id(cpu) (cpuid_ebx(1) >> 24) ^ /kisskb/src/drivers/dma/ioat/dca.c:185:12: note: in expansion of macro 'cpu_physical_id' apic_id = cpu_physical_id(cpu); ^ cc1: some warnings being treated as errors make[4]: * [/kisskb/src/scripts/Makefile.build:271: drivers/dma/ioat/dca.o] Error 1 make[4]: * Waiting for unfinished jobs.... make[3]: * [/kisskb/src/scripts/Makefile.build:514: drivers/dma/ioat] Error 2 make[2]: * [/kisskb/src/scripts/Makefile.build:514: drivers/dma] Error 2 make[2]: * Waiting for unfinished jobs.... /kisskb/src/drivers/pci/controller/vmd.c:116:21: error: field 'sysdata' has incomplete type struct pci_sysdata sysdata; ^ /kisskb/src/drivers/pci/controller/vmd.c: In function 'vmd_compose_msi_msg': /kisskb/src/drivers/pci/controller/vmd.c:150:20: error: 'X86_MSI_BASE_ADDRESS_HIGH' undeclared (first use in this function) msg->address_hi = X86_MSI_BASE_ADDRESS_HIGH; ^ /kisskb/src/drivers/pci/controller/vmd.c:150:20: note: each undeclared identifier is reported only once for each function it appears in /kisskb/src/drivers/pci/controller/vmd.c:151:19: error: 'arch_msi_msg_addr_lo_t {aka struct arch_msi_msg_addr_lo}' has no member named 'base_address' msg->arch_addr_lo.base_address = X86_MSI_BASE_ADDRESS_LOW; ^ /kisskb/src/drivers/pci/controller/vmd.c:151:35: error: 'X86_MSI_BASE_ADDRESS_LOW' undeclared (first use in this function) msg->arch_addr_lo.base_address = X86_MSI_BASE_ADDRESS_LOW; ^ /kisskb/src/drivers/pci/controller/vmd.c:152:19: error: 'arch_msi_msg_addr_lo_t {aka struct arch_msi_msg_addr_lo}' has no member named 'destid_0_7' msg->arch_addr_lo.destid_0_7 = index_from_irqs(vmd, irq); ^ /kisskb/src/drivers/pci/controller/vmd.c: In function 'vmd_enable_domain': /kisskb/src/drivers/pci/controller/vmd.c:700:4: error: dereferencing pointer to incomplete type 'struct pci_sysdata' sd->vmd_dev = vmd->dev; ^ /kisskb/src/drivers/pci/controller/vmd.c: In function 'vmd_from_bus': /kisskb/src/drivers/pci/controller/vmd.c:127:1: error: control reaches end of non-void function [-Werror=return-type] } ^ cc1: some warnings being treated as errors make[4]: * [/kisskb/src/scripts/Makefile.build:271: drivers/pci/controller/vmd.o] Error 1 make[3]: * [/kisskb/src/scripts/Makefile.build:514: drivers/pci/controller] Error 2 make[2]: *** [/kisskb/src/scripts/Makefile.build:514: drivers/pci] Error 2 /kisskb/src/drivers/video/fbdev/riva/fbdev.c: In function 'rivafb_probe': /kisskb/src/drivers/video/fbdev/riva/fbdev.c:2059:11: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers] iounmap(default_par->riva.PRAMIN); ^ In file included from /kisskb/src/arch/um/include/asm/io.h:7:0, from /kisskb/src/include/linux/io.h:13, from /kisskb/src/include/linux/irq.h:20, from /kisskb/src/include/asm-generic/hardirq.h:17, from /kisskb/src/arch/um/include/asm/hardirq.h:5, from /kisskb/src/include/linux/hardirq.h:11, from /kisskb/src/include/linux/interrupt.h:11, from /kisskb/src/include/linux/trace_recursion.h:5, from /kisskb/src/include/linux/ftrace.h:10, from /kisskb/src/include/linux/kprobes.h:29, from /kisskb/src/include/linux/kgdb.h:19, from /kisskb/src/include/linux/fb.h:5, from /kisskb/src/drivers/video/fbdev/riva/fbdev.c:39: /kisskb/src/include/asm-generic/logic_io.h:36:17: note: expected 'void ' but argument is of type 'volatile U032 {aka volatile unsigned int }' #define iounmap iounmap ^ /kisskb/src/include/asm-generic/logic_io.h:37:6: note: in expansion of macro 'iounmap' void iounmap(void __iomem addr); ^ /kisskb/src/drivers/video/fbdev/riva/fbdev.c: In function 'rivafb_remove': /kisskb/src/drivers/video/fbdev/riva/fbdev.c:2092:11: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers] iounmap(par->riva.PRAMIN); ^ In file included from /kisskb/src/arch/um/include/asm/io.h:7:0, from /kisskb/src/include/linux/io.h:13, from /kisskb/src/include/linux/irq.h:20, from /kisskb/src/include/asm-generic/hardirq.h:17, from /kisskb/src/arch/um/include/asm/hardirq.h:5, from /kisskb/src/include/linux/hardirq.h:11, from /kisskb/src/include/linux/interrupt.h:11, from /kisskb/src/include/linux/trace_recursion.h:5, from /kisskb/src/include/linux/ftrace.h:10, from /kisskb/src/include/linux/kprobes.h:29, from /kisskb/src/include/linux/kgdb.h:19, from /kisskb/src/include/linux/fb.h:5, from /kisskb/src/drivers/video/fbdev/riva/fbdev.c:39: /kisskb/src/include/asm-generic/logic_io.h:36:17: note: expected 'void ' but argument is of type 'volatile U032 {aka volatile unsigned int }' #define iounmap iounmap ^ /kisskb/src/include/asm-generic/logic_io.h:37:6: note: in expansion of macro 'iounmap' void iounmap(void __iomem addr); ^ /kisskb/src/drivers/video/fbdev/nvidia/nvidia.c: In function 'nvidiafb_probe': /kisskb/src/drivers/video/fbdev/nvidia/nvidia.c:1414:10: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers] iounmap(par->REGS); ^ In file included from /kisskb/src/arch/um/include/asm/io.h:7:0, from /kisskb/src/include/linux/io.h:13, from /kisskb/src/include/linux/irq.h:20, from /kisskb/src/include/asm-generic/hardirq.h:17, from /kisskb/src/arch/um/include/asm/hardirq.h:5, from /kisskb/src/include/linux/hardirq.h:11, from /kisskb/src/include/linux/interrupt.h:11, from /kisskb/src/include/linux/trace_recursion.h:5, from /kisskb/src/include/linux/ftrace.h:10, from /kisskb/src/include/linux/kprobes.h:29, from /kisskb/src/include/linux/kgdb.h:19, from /kisskb/src/include/linux/fb.h:5, from /kisskb/src/drivers/video/fbdev/nvidia/nvidia.c:19: /kisskb/src/include/asm-generic/logic_io.h:36:17: note: expected 'void ' but argument is of type 'volatile u32 {aka volatile unsigned int }' #define iounmap iounmap ^ /kisskb/src/include/asm-generic/logic_io.h:37:6: note: in expansion of macro 'iounmap' void iounmap(void __iomem addr); ^ /kisskb/src/drivers/video/fbdev/nvidia/nvidia.c: In function 'nvidiafb_remove': /kisskb/src/drivers/video/fbdev/nvidia/nvidia.c:1439:10: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers] iounmap(par->REGS); ^ In file included from /kisskb/src/arch/um/include/asm/io.h:7:0, from /kisskb/src/include/linux/io.h:13, from /kisskb/src/include/linux/irq.h:20, from /kisskb/src/include/asm-generic/hardirq.h:17, from /kisskb/src/arch/um/include/asm/hardirq.h:5, from /kisskb/src/include/linux/hardirq.h:11, from /kisskb/src/include/linux/interrupt.h:11, from /kisskb/src/include/linux/trace_recursion.h:5, from /kisskb/src/include/linux/ftrace.h:10, from /kisskb/src/include/linux/kprobes.h:29, from /kisskb/src/include/linux/kgdb.h:19, from /kisskb/src/include/linux/fb.h:5, from /kisskb/src/drivers/video/fbdev/nvidia/nvidia.c:19: /kisskb/src/include/asm-generic/logic_io.h:36:17: note: expected 'void ' but argument is of type 'volatile u32 {aka volatile unsigned int }' #define iounmap iounmap ^ /kisskb/src/include/asm-generic/logic_io.h:37:6: note: in expansion of macro 'iounmap' void iounmap(void __iomem addr); ^ make[1]: * [/kisskb/src/Makefile:1841: drivers] Error 2 make[1]: * Waiting for unfinished jobs.... make: *** [Makefile:220: __sub-make] Error 2 Command 'make -s -j 24 ARCH=um O=/kisskb/build/linus_um-allmodconfig_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-allmodconfig_um-x86_64 # Build took: 0:05:54.411010

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