The patch titled Subject: include/linux/pid.h: remove next_pidmap() declaration has been removed from the -mm tree. Its filename was pid-remove-next_pidmap-declaration.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Nadav Amit <namit@xxxxxxxxxx> Subject: include/linux/pid.h: remove next_pidmap() declaration 95846ecf9dac ("pid: replace pid bitmap implementation with IDR API") removed next_pidmap() but left its declaration. Remove it. No functional change. Link: http://lkml.kernel.org/r/20190213113736.21922-1-namit@xxxxxxxxxx Signed-off-by: Nadav Amit <namit@xxxxxxxxxx> Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> Cc: Gargi Sharma <gs051095@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- --- a/include/linux/pid.h~pid-remove-next_pidmap-declaration +++ a/include/linux/pid.h @@ -109,7 +109,6 @@ extern struct pid *find_vpid(int nr); */ extern struct pid *find_get_pid(int nr); extern struct pid *find_ge_pid(int nr, struct pid_namespace *); -int next_pidmap(struct pid_namespace *pid_ns, unsigned int last); extern struct pid *alloc_pid(struct pid_namespace *ns); extern void free_pid(struct pid *pid); _ Patches currently in -mm which might be from namit@xxxxxxxxxx are