Buildresult: linus/um-allmodconfig/um-x86_64 built on Sep 22 2021, 14:20

kisskb

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Status:	Failed
Date/Time:	Sep 22 2021, 14:20
Duration:	0:02:54.639905
Builder:	ka7
Revision:	qnx4: work around gcc false positive warning bug (`d5f6545934c47e97c0b48a645418e877b452a992)`
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/pci/controller/vmd.c:117:21: error: field 'sysdata' has incomplete type drivers/pci/controller/vmd.c:151:20: error: 'X86_MSI_BASE_ADDRESS_HIGH' 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 'base_address' drivers/pci/controller/vmd.c:152:35: error: 'X86_MSI_BASE_ADDRESS_LOW' undeclared (first use in this function) drivers/pci/controller/vmd.c:153:19: 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:751:4: error: dereferencing pointer to incomplete type 'struct pci_sysdata' drivers/pci/controller/vmd.c:128:1: error: control reaches end of non-void function [-Werror=return-type] cc1: all warnings being treated as errors make[4]: * [scripts/Makefile.build:277: drivers/pci/controller/vmd.o] Error 1 make[3]: * [scripts/Makefile.build:540: drivers/pci/controller] Error 2 make[2]: * [scripts/Makefile.build:540: drivers/pci] Error 2 drivers/video/fbdev/riva/fbdev.c:2062:11: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-qualifiers] drivers/video/fbdev/riva/fbdev.c:2095:11: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-qualifiers] cc1: all warnings being treated as errors make[5]: * [scripts/Makefile.build:277: drivers/video/fbdev/riva/fbdev.o] Error 1 make[4]: * [scripts/Makefile.build:540: drivers/video/fbdev/riva] Error 2 drivers/video/fbdev/nvidia/nvidia.c:1414:10: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-qualifiers] drivers/video/fbdev/nvidia/nvidia.c:1439:10: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-qualifiers] cc1: all warnings being treated as errors make[5]: * [scripts/Makefile.build:277: drivers/video/fbdev/nvidia/nvidia.o] Error 1 make[4]: * [scripts/Makefile.build:540: drivers/video/fbdev/nvidia] Error 2 make[3]: * [scripts/Makefile.build:540: drivers/video/fbdev] Error 2 make[2]: * [scripts/Makefile.build:540: drivers/video] Error 2 make[1]: * [Makefile:1868: drivers] Error 2 make: * [Makefile:219: __sub-make] Error 2 Possible warnings (6) .config:11719:warning: override: reassigning to symbol GCC_PLUGIN_SANCOV .config:11722:warning: override: reassigning to symbol GCC_PLUGIN_RANDSTRUCT .config:11724:warning: override: reassigning to symbol UML_NET_ETHERTAP .config:11726:warning: override: reassigning to symbol UML_NET_SLIP .config:11729:warning: override: reassigning to symbol UML_NET_MCAST .config:11731:warning: override: reassigning to symbol UML_NET_SLIRP Full Log # git rev-parse -q --verify d5f6545934c47e97c0b48a645418e877b452a992^{commit} d5f6545934c47e97c0b48a645418e877b452a992 already have revision, skipping fetch # git checkout -q -f -B kisskb d5f6545934c47e97c0b48a645418e877b452a992 # git clean -qxdf # < git log -1 # commit d5f6545934c47e97c0b48a645418e877b452a992 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Mon Sep 20 10:26:21 2021 -0700 # # qnx4: work around gcc false positive warning bug # # In commit b7213ffa0e58 ("qnx4: avoid stringop-overread errors") I tried # to teach gcc about how the directory entry structure can be two # different things depending on a status flag. It made the code clearer, # and it seemed to make gcc happy. # # However, Arnd points to a gcc bug, where despite using two different # members of a union, gcc then gets confused, and uses the size of one of # the members to decide if a string overrun happens. And not necessarily # the rigth one. # # End result: with some configurations, gcc-11 will still complain about # the source buffer size being overread: # # fs/qnx4/dir.c: In function 'qnx4_readdir': # fs/qnx4/dir.c:76:32: error: 'strnlen' specified bound [16, 48] exceeds source size 1 [-Werror=stringop-overread] # 76 \| size = strnlen(name, size); # \| ^~~~~~~~~~~~~~~~~~~ # fs/qnx4/dir.c:26:22: note: source object declared here # 26 \| char de_name; # \| ^~~~~~~ # # because gcc will get confused about which union member entry is actually # getting accessed, even when the source code is very clear about it. Gcc # internally will have combined two "redundant" pointers (pointing to # different union elements that are at the same offset), and takes the # size checking from one or the other - not necessarily the right one. # # This is clearly a gcc bug, but we can work around it fairly easily. The # biggest thing here is the big honking comment about why we do what we # do. # # Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578#c6 # Reported-and-tested-by: Arnd Bergmann <arnd@kernel.org> # 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 d5f6545934c47e97c0b48a645418e877b452a992 # < make -s -j 32 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 32 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 32 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:11719:warning: override: reassigning to symbol GCC_PLUGIN_SANCOV .config:11722:warning: override: reassigning to symbol GCC_PLUGIN_RANDSTRUCT .config:11724:warning: override: reassigning to symbol UML_NET_ETHERTAP .config:11726:warning: override: reassigning to symbol UML_NET_SLIP .config:11729:warning: override: reassigning to symbol UML_NET_MCAST .config:11731:warning: override: reassigning to symbol UML_NET_SLIRP # make -s -j 32 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/arch/x86/um/Makefile:44: FORCE prerequisite is missing /kisskb/src/drivers/pci/controller/vmd.c:117:21: 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:151:20: 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:151:20: note: each undeclared identifier is reported only once for each function it appears in /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 'base_address' msg->arch_addr_lo.base_address = X86_MSI_BASE_ADDRESS_LOW; ^ /kisskb/src/drivers/pci/controller/vmd.c:152:35: 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:153:19: 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:751:4: 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:128:1: error: control reaches end of non-void function [-Werror=return-type] } ^ cc1: all warnings being treated as errors make[4]: * [/kisskb/src/scripts/Makefile.build:277: drivers/pci/controller/vmd.o] Error 1 make[4]: * Waiting for unfinished jobs.... make[3]: * [/kisskb/src/scripts/Makefile.build:540: drivers/pci/controller] Error 2 make[2]: * [/kisskb/src/scripts/Makefile.build:540: drivers/pci] Error 2 make[2]: * Waiting for unfinished jobs.... /kisskb/src/drivers/video/fbdev/riva/fbdev.c: In function 'rivafb_probe': /kisskb/src/drivers/video/fbdev/riva/fbdev.c:2062:11: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-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:6, 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:2095:11: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-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:6, 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); ^ cc1: all warnings being treated as errors make[5]: * [/kisskb/src/scripts/Makefile.build:277: drivers/video/fbdev/riva/fbdev.o] Error 1 make[5]: * Waiting for unfinished jobs.... make[4]: * [/kisskb/src/scripts/Makefile.build:540: drivers/video/fbdev/riva] Error 2 make[4]: * Waiting for unfinished jobs.... /kisskb/src/drivers/video/fbdev/nvidia/nvidia.c: In function 'nvidiafb_probe': /kisskb/src/drivers/video/fbdev/nvidia/nvidia.c:1414:10: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-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:6, 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: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-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:6, 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); ^ cc1: all warnings being treated as errors make[5]: * [/kisskb/src/scripts/Makefile.build:277: drivers/video/fbdev/nvidia/nvidia.o] Error 1 make[4]: * [/kisskb/src/scripts/Makefile.build:540: drivers/video/fbdev/nvidia] Error 2 make[3]: * [/kisskb/src/scripts/Makefile.build:540: drivers/video/fbdev] Error 2 make[2]: * [/kisskb/src/scripts/Makefile.build:540: drivers/video] Error 2 make[1]: * [/kisskb/src/Makefile:1868: drivers] Error 2 make[1]: * Waiting for unfinished jobs.... make: *** [Makefile:219: __sub-make] Error 2 Command 'make -s -j 32 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: 0:02:54.639905

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