The patch titled Subject: kcov: don't instrument lib/find_bit.c has been added to the -mm mm-nonmm-unstable branch. Its filename is kcov-dont-instrument-lib-find_bitc.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kcov-dont-instrument-lib-find_bitc.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Andrey Konovalov <andreyknvl@xxxxxxxxx> Subject: kcov: don't instrument lib/find_bit.c Date: Tue, 23 Jul 2024 00:37:26 +0200 This file produces large amounts of flaky coverage not useful for the KCOV's intended use case (guiding the fuzzing process). Link: https://lkml.kernel.org/r/20240722223726.194658-1-andrey.konovalov@xxxxxxxxx Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxx> Cc: Aleksandr Nogikh <nogikh@xxxxxxxxxx> Cc: Alexander Potapenko <glider@xxxxxxxxxx> Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> Cc: Marco Elver <elver@xxxxxxxxxx> Cc: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx> Cc: Yury Norov <yury.norov@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- lib/Makefile | 1 + 1 file changed, 1 insertion(+) --- a/lib/Makefile~kcov-dont-instrument-lib-find_bitc +++ a/lib/Makefile @@ -14,6 +14,7 @@ KCOV_INSTRUMENT_list_debug.o := n KCOV_INSTRUMENT_debugobjects.o := n KCOV_INSTRUMENT_dynamic_debug.o := n KCOV_INSTRUMENT_fault-inject.o := n +KCOV_INSTRUMENT_find_bit.o := n # string.o implements standard library functions like memset/memcpy etc. # Use -ffreestanding to ensure that the compiler does not try to "optimize" _ Patches currently in -mm which might be from andreyknvl@xxxxxxxxx are kcov-dont-instrument-lib-find_bitc.patch