I encountered the following build warnings/errors while compiling the x86_64 kernel on Linux next-20240212 tag with clang toolchain. Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> fs/quota/quota_tree.c:674:8: error: variable 'blk' is uninitialized when used here [-Werror,-Wuninitialized] 674 | blk); | ^~~ include/linux/quotaops .h:34:41: note: expanded from macro 'quota_error' 34 | __quota_error((sb), __func__, fmt , ## args) | ^~~~ fs/quota/quota_tree.c:666:10: note: initialize the variable 'blk' to silence this warning 666 | uint blk; | ^ | = 0 1 error generated. Links: - https://storage.tuxsuite.com/public/linaro/lkft/builds/2cFjnmDh1oofs8YfpPEBSMDvU9R/ As per the other reports, this has been fixed in Jan's tree. https://lore.kernel.org/all/20240212131615.6jvnwweivkydv3j7@quack3/ -- Linaro LKFT https://lkft.linaro.org