The patch titled Subject: slub: STACKDEPOT: rename save_stack_trace() has been added to the -mm tree. Its filename is mm-slub-use-stackdepot-to-save-stack-trace-in-objects-fix.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-slub-use-stackdepot-to-save-stack-trace-in-objects-fix.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-slub-use-stackdepot-to-save-stack-trace-in-objects-fix.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: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Subject: slub: STACKDEPOT: rename save_stack_trace() save_stack_trace() already exists, so change the one in CONFIG_STACKDEPOT to be save_stack_depot_trace(). Fixes this build error: ../mm/slub.c:607:29: error: conflicting types for `save_stack_trace' static depot_stack_handle_t save_stack_trace(gfp_t flags) ^~~~~~~~~~~~~~~~ In file included from ../include/linux/page_ext.h:6:0, from ../include/linux/mm.h:25, from ../mm/slub.c:13: ../include/linux/stacktrace.h:86:13: note: previous declaration of `save_stack_trace' was here extern void save_stack_trace(struct stack_trace *trace); ^~~~~~~~~~~~~~~~ from this patch in mmotm: Subject: mm/slub: use stackdepot to save stack trace in objects Link: https://lkml.kernel.org/r/20210513051920.29320-1-rdunlap@xxxxxxxxxxxxx Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Acked-by: Oliver Glitta <glittao@xxxxxxxxx> Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/slub.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/slub.c~mm-slub-use-stackdepot-to-save-stack-trace-in-objects-fix +++ a/mm/slub.c @@ -604,7 +604,7 @@ static struct track *get_track(struct km } #ifdef CONFIG_STACKDEPOT -static depot_stack_handle_t save_stack_trace(gfp_t flags) +static depot_stack_handle_t save_stack_depot_trace(gfp_t flags) { unsigned long entries[TRACK_ADDRS_COUNT]; depot_stack_handle_t handle; @@ -623,7 +623,7 @@ static void set_track(struct kmem_cache if (addr) { #ifdef CONFIG_STACKDEPOT - p->handle = save_stack_trace(GFP_KERNEL); + p->handle = save_stack_depot_trace(GFP_KERNEL); #endif p->addr = addr; p->cpu = smp_processor_id(); _ Patches currently in -mm which might be from rdunlap@xxxxxxxxxxxxx are ia64-headers-drop-duplicated-words.patch mm-slub-use-stackdepot-to-save-stack-trace-in-objects-fix.patch