The patch titled Subject: procfs: fix the output format in /proc/PID/wchan has been added to the -mm tree. Its filename is procfs-fix-the-output-format-in-proc-pid-wchan.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/procfs-fix-the-output-format-in-proc-pid-wchan.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/procfs-fix-the-output-format-in-proc-pid-wchan.patch 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 and is updated there every 3-4 working days ------------------------------------------------------ From: Yafang Shao <laoar.shao@xxxxxxxxx> Subject: procfs: fix the output format in /proc/PID/wchan Add the missing newline. Link: http://lkml.kernel.org/r/1542626272-29129-1-git-send-email-laoar.shao@xxxxxxxxx Signed-off-by: Yafang Shao <laoar.shao@xxxxxxxxx> Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: Kees Cook <keescook@xxxxxxxxxxxx> Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- --- a/fs/proc/base.c~procfs-fix-the-output-format-in-proc-pid-wchan +++ a/fs/proc/base.c @@ -370,11 +370,12 @@ static int proc_pid_wchan(struct seq_fil wchan = get_wchan(task); if (wchan && !lookup_symbol_name(wchan, symname)) { seq_puts(m, symname); + seq_putc(m, '\n'); return 0; } print0: - seq_putc(m, '0'); + seq_puts(m, "0\n"); return 0; } #endif /* CONFIG_KALLSYMS */ _ Patches currently in -mm which might be from laoar.shao@xxxxxxxxx are procfs-fix-the-output-format-in-proc-pid-wchan.patch