Searched hist:"1 e83bc8156028a938845a869a3317c3cab9630ac" (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/fs/ext4/ |
H A D | extents_status.c | diff 1e83bc8156028a938845a869a3317c3cab9630ac Sun Apr 07 11:24:43 CDT 2019 Arnd Bergmann <arnd@arndb.de> ext4: use BUG() instead of BUG_ON(1)
BUG_ON(1) leads to bogus warnings from clang when CONFIG_PROFILE_ANNOTATED_BRANCHES is set:
fs/ext4/inode.c:544:4: error: variable 'retval' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized] BUG_ON(1); ^~~~~~~~~ include/asm-generic/bug.h:61:36: note: expanded from macro 'BUG_ON' ^~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:48:23: note: expanded from macro 'unlikely' ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/ext4/inode.c:591:6: note: uninitialized use occurs here if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) { ^~~~~~ fs/ext4/inode.c:544:4: note: remove the 'if' if its condition is always true BUG_ON(1); ^ include/asm-generic/bug.h:61:32: note: expanded from macro 'BUG_ON' ^ fs/ext4/inode.c:502:12: note: initialize the variable 'retval' to silence this warning
Change it to BUG() so clang can see that this code path can never continue.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Jan Kara <jack@suse.cz>
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H A D | inode.c | diff 1e83bc8156028a938845a869a3317c3cab9630ac Sun Apr 07 11:24:43 CDT 2019 Arnd Bergmann <arnd@arndb.de> ext4: use BUG() instead of BUG_ON(1)
BUG_ON(1) leads to bogus warnings from clang when CONFIG_PROFILE_ANNOTATED_BRANCHES is set:
fs/ext4/inode.c:544:4: error: variable 'retval' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized] BUG_ON(1); ^~~~~~~~~ include/asm-generic/bug.h:61:36: note: expanded from macro 'BUG_ON' ^~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:48:23: note: expanded from macro 'unlikely' ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/ext4/inode.c:591:6: note: uninitialized use occurs here if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) { ^~~~~~ fs/ext4/inode.c:544:4: note: remove the 'if' if its condition is always true BUG_ON(1); ^ include/asm-generic/bug.h:61:32: note: expanded from macro 'BUG_ON' ^ fs/ext4/inode.c:502:12: note: initialize the variable 'retval' to silence this warning
Change it to BUG() so clang can see that this code path can never continue.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Jan Kara <jack@suse.cz>
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