The patch titled Subject: lib/dynamic_debug.c: use address-of operator on section symbols has been removed from the -mm tree. Its filename was dynamic_debug-use-address-of-operator-on-section-symbols.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Nathan Chancellor <natechancellor@xxxxxxxxx> Subject: lib/dynamic_debug.c: use address-of operator on section symbols Clang warns: ../lib/dynamic_debug.c:1034:24: warning: array comparison always evaluates to false [-Wtautological-compare] if (__start___verbose == __stop___verbose) { ^ 1 warning generated. These are not true arrays, they are linker defined symbols, which are just addresses. Using the address of operator silences the warning and does not change the resulting assembly with either clang/ld.lld or gcc/ld (tested with diff + objdump -Dr). Link: https://github.com/ClangBuiltLinux/linux/issues/894 Link: http://lkml.kernel.org/r/20200220051320.10739-1-natechancellor@xxxxxxxxx Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx> Suggested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> Acked-by: Jason Baron <jbaron@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- lib/dynamic_debug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/lib/dynamic_debug.c~dynamic_debug-use-address-of-operator-on-section-symbols +++ a/lib/dynamic_debug.c @@ -1031,7 +1031,7 @@ static int __init dynamic_debug_init(voi int n = 0, entries = 0, modct = 0; int verbose_bytes = 0; - if (__start___verbose == __stop___verbose) { + if (&__start___verbose == &__stop___verbose) { pr_warn("_ddebug table is empty in a CONFIG_DYNAMIC_DEBUG build\n"); return 1; } _ Patches currently in -mm which might be from natechancellor@xxxxxxxxx are