Buildresult: gustavoars/x86_64-allmodconfig/x86_64-gcc12 built on Jul 18 2023, 18:27

kisskb

Revisions | Branches | Compilers | Configs | Build Results | Build Failures |

Status:	OK
Date/Time:	Jul 18 2023, 18:27
Duration:	0:27:22.316296
Builder:	ka7
Revision:	fs: omfs: Use flexible-array member in struct omfs_extent (`6ae3f51825e31ac9ad9f062f00b57a6c9bac3179)`
Target:	gustavoars/x86_64-allmodconfig/x86_64-gcc12
Branch:	gustavoars
Compiler:	x86_64-gcc12 (x86_64-linux-gcc (GCC) 12.2.0 / GNU ld (GNU Binutils) 2.39)
Config:	allmodconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 6ae3f51825e31ac9ad9f062f00b57a6c9bac3179^{commit} 6ae3f51825e31ac9ad9f062f00b57a6c9bac3179 already have revision, skipping fetch # git checkout -q -f -B kisskb 6ae3f51825e31ac9ad9f062f00b57a6c9bac3179 # git clean -qxdf # < git log -1 # commit 6ae3f51825e31ac9ad9f062f00b57a6c9bac3179 # Author: Gustavo A. R. Silva <gustavoars@kernel.org> # Date: Fri Jul 14 13:56:37 2023 -0600 # # fs: omfs: Use flexible-array member in struct omfs_extent # # Memory for 'struct omfs_extent' and a 'e_extent_count' number of extent # entries is indirectly allocated through 'bh->b_data', which is a pointer # to data within the page. This implies that the member 'e_entry' # (which is the start of extent entries) functions more like an array than # a single object of type 'struct omfs_extent_entry'. # # So we better turn this object into a proper array, in this case a # flexible-array member, and with that, fix the following # -Wstringop-overflow warning seen after building s390 architecture with # allyesconfig (GCC 13): # # fs/omfs/file.c: In function 'omfs_grow_extent': # include/linux/fortify-string.h:57:33: warning: writing 16 bytes into a region of size 0 [-Wstringop-overflow=] # 57 \| #define __underlying_memcpy __builtin_memcpy # \| ^ # include/linux/fortify-string.h:648:9: note: in expansion of macro '__underlying_memcpy' # 648 \| __underlying_##op(p, q, __fortify_size); \ # \| ^~~~~~~~~~~~~ # include/linux/fortify-string.h:693:26: note: in expansion of macro '__fortify_memcpy_chk' # 693 \| #define memcpy(p, q, s) __fortify_memcpy_chk(p, q, s, \ # \| ^~~~~~~~~~~~~~~~~~~~ # fs/omfs/file.c:170:9: note: in expansion of macro 'memcpy' # 170 \| memcpy(terminator, entry, sizeof(struct omfs_extent_entry)); # \| ^~~~~~ # In file included from fs/omfs/omfs.h:8, # from fs/omfs/file.c:11: # fs/omfs/omfs_fs.h:80:34: note: at offset 16 into destination object 'e_entry' of size 16 # 80 \| struct omfs_extent_entry e_entry; /* start of extent entries */ # \| ^~~~~~~ # # There are some binary differences before and after changes, but this are # expected due to the change in the size of 'struct omfs_extent' and the # necessary adjusments. # # This helps with the ongoing efforts to globally enable # -Wstringop-overflow. # # Link: https://github.com/KSPP/linux/issues/330 # Reviewed-by: Kees Cook <keescook@chromium.org> # Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> # < /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 6ae3f51825e31ac9ad9f062f00b57a6c9bac3179 # make -s -j 32 ARCH=x86 O=/kisskb/build/gustavoars_allmodconfig_x86_64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/x86_64-linux/bin/x86_64-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig # < make -s -j 32 ARCH=x86 O=/kisskb/build/gustavoars_allmodconfig_x86_64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 32 ARCH=x86 O=/kisskb/build/gustavoars_allmodconfig_x86_64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 32 ARCH=x86 O=/kisskb/build/gustavoars_allmodconfig_x86_64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/x86_64-linux/bin/x86_64-linux- Completed OK # rm -rf /kisskb/build/gustavoars_allmodconfig_x86_64-gcc12 # Build took: 0:27:22.316296

© Michael Ellerman 2006-2018.