# git rev-parse -q --verify cc3a7bfe62b947b423fcb2cfe89fcba92bf48fa3^{commit} cc3a7bfe62b947b423fcb2cfe89fcba92bf48fa3 already have revision, skipping fetch # git checkout -q -f -B kisskb cc3a7bfe62b947b423fcb2cfe89fcba92bf48fa3 # git clean -qxdf # < git log -1 # commit cc3a7bfe62b947b423fcb2cfe89fcba92bf48fa3 # Author: Eric Sandeen # Date: Wed Oct 2 16:17:54 2019 -0500 # # vfs: Fix EOVERFLOW testing in put_compat_statfs64 # # Today, put_compat_statfs64() disallows nearly any field value over # 2^32 if f_bsize is only 32 bits, but that makes no sense. # compat_statfs64 is there for the explicit purpose of providing 64-bit # fields for f_files, f_ffree, etc. And f_bsize is always only 32 bits. # # As a result, 32-bit userspace gets -EOVERFLOW for i.e. large file # counts even with -D_FILE_OFFSET_BITS=64 set. # # In reality, only f_bsize and f_frsize can legitimately overflow # (fields like f_type and f_namelen should never be large), so test # only those fields. # # This bug was discussed at length some time ago, and this is the proposal # Al suggested at https://lkml.org/lkml/2018/8/6/640. It seemed to get # dropped amid the discussion of other related changes, but this # part seems obviously correct on its own, so I've picked it up and # sent it, for expediency. # # Fixes: 64d2ab32efe3 ("vfs: fix put_compat_statfs64() does not handle errors") # Signed-off-by: Eric Sandeen # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 cc3a7bfe62b947b423fcb2cfe89fcba92bf48fa3 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- randconfig KCONFIG_SEED=0x5E14F98C # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n # Added to kconfig CONFIG_UBSAN=n # yes \n | make -s -j 24 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- oldconfig yes: standard output: Broken pipe # make -s -j 24 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/mm/book3s64/pgtable.c: In function 'flush_partition': /kisskb/src/arch/powerpc/mm/book3s64/pgtable.c:216:3: error: implicit declaration of function 'radix__flush_all_lpid_guest'; did you mean 'radix__flush_all_lpid'? [-Werror=implicit-function-declaration] radix__flush_all_lpid_guest(lpid); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ radix__flush_all_lpid cc1: some warnings being treated as errors make[4]: *** [/kisskb/src/scripts/Makefile.build:265: arch/powerpc/mm/book3s64/pgtable.o] Error 1 make[3]: *** [/kisskb/src/scripts/Makefile.build:509: arch/powerpc/mm/book3s64] Error 2 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [/kisskb/src/scripts/Makefile.build:509: arch/powerpc/mm] Error 2 make[2]: *** Waiting for unfinished jobs.... /kisskb/src/arch/powerpc/kernel/eeh.c:1769:12: warning: 'proc_eeh_show' defined but not used [-Wunused-function] static int proc_eeh_show(struct seq_file *m, void *v) ^~~~~~~~~~~~~ make[1]: *** [/kisskb/src/Makefile:1670: arch/powerpc] Error 2 make[1]: *** Waiting for unfinished jobs.... /kisskb/src/drivers/vfio/pci/vfio_pci_nvlink2.c: In function 'vfio_pci_nvgpu_release': /kisskb/src/drivers/vfio/pci/vfio_pci_nvlink2.c:100:9: error: implicit declaration of function 'mm_iommu_put'; did you mean 'mm_iommu_init'? [-Werror=implicit-function-declaration] ret = mm_iommu_put(data->mm, data->mem); ^~~~~~~~~~~~ mm_iommu_init /kisskb/src/drivers/vfio/pci/vfio_pci_nvlink2.c: In function 'vfio_pci_nvgpu_mmap': /kisskb/src/drivers/vfio/pci/vfio_pci_nvlink2.c:163:14: error: implicit declaration of function 'mm_iommu_newdev'; did you mean 'mm_iommu_init'? [-Werror=implicit-function-declaration] ret = (int) mm_iommu_newdev(data->mm, data->useraddr, ^~~~~~~~~~~~~~~ mm_iommu_init cc1: some warnings being treated as errors make[4]: *** [/kisskb/src/scripts/Makefile.build:266: drivers/vfio/pci/vfio_pci_nvlink2.o] Error 1 make[3]: *** [/kisskb/src/scripts/Makefile.build:509: drivers/vfio/pci] Error 2 make[2]: *** [/kisskb/src/scripts/Makefile.build:509: drivers/vfio] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [/kisskb/src/Makefile:1670: drivers] Error 2 make: *** [Makefile:179: sub-make] Error 2 Command 'make -s -j 24 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc8 # Build took: 0:04:35.750652