The patch titled Subject: kcov: no need to check return value of debugfs_create functions has been removed from the -mm tree. Its filename was kcov-no-need-to-check-return-value-of-debugfs_create-functions.patch This patch was dropped because it was folded into kernel-configs-use-incbin-directive-to-embed-config_datagz.patch ------------------------------------------------------ From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Subject: kcov: no need to check return value of debugfs_create functions When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Link: http://lkml.kernel.org/r/20190122152151.16139-46-gregkh@xxxxxxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: "Steven Rostedt (VMware)" <rostedt@xxxxxxxxxxx> Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> Cc: Anders Roxell <anders.roxell@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- kernel/kcov.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) --- a/kernel/kcov.c~kcov-no-need-to-check-return-value-of-debugfs_create-functions +++ a/kernel/kcov.c @@ -444,10 +444,8 @@ static int __init kcov_init(void) * there is no need to protect it against removal races. The * use of debugfs_create_file_unsafe() is actually safe here. */ - if (!debugfs_create_file_unsafe("kcov", 0600, NULL, NULL, &kcov_fops)) { - pr_err("failed to create kcov in debugfs\n"); - return -ENOMEM; - } + debugfs_create_file_unsafe("kcov", 0600, NULL, NULL, &kcov_fops); + return 0; } _ Patches currently in -mm which might be from gregkh@xxxxxxxxxxxxxxxxxxx are kernel-configs-use-incbin-directive-to-embed-config_datagz.patch