Hi Peter, Andrew, I am not sure if this is one of the issues that Peter mentioned [1] to be resolved or not eventually, but I have spotted this in the last couple -next runs for a LLVM=1 loongarch64 defconfig build [2]. Hope that helps! Cheers, Miguel [1] https://lore.kernel.org/all/ZgMzaMu7oILiNLcG@x1n/ [2] mm/gup.c:679:22: error: call to '__compiletime_assert_382' declared with 'error' attribute: BUILD_BUG failed 679 | unsigned long pfn = pud_pfn(pud); | ^ ./include/linux/pgtable.h:1887:23: note: expanded from macro 'pud_pfn' 1887 | #define pud_pfn(x) ({ BUILD_BUG(); 0; }) | ^ ./include/linux/build_bug.h:59:21: note: expanded from macro 'BUILD_BUG' 59 | #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed") | ^ ./include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) ././include/linux/compiler_types.h:448:2: note: expanded from macro '_compiletime_assert' 448 | __compiletime_assert(condition, msg, prefix, suffix) | ^ ././include/linux/compiler_types.h:441:4: note: expanded from macro '__compiletime_assert' 441 | prefix ## suffix(); \ | ^ <scratch space>:48:1: note: expanded from here 48 | __compiletime_assert_382 | ^ 1 error generated.
