The patch titled Subject: mm/process_vm_access.c: include compat.h has been added to the -mm tree. Its filename is mm-process_vm_accessc-include-compath.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-process_vm_accessc-include-compath.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-process_vm_accessc-include-compath.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: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: mm/process_vm_access.c: include compat.h mm/process_vm_access.c:277:5: error: implicit declaration of function 'in_compat_syscall'; did you mean 'in_ia32_syscall'? [-Werror=implicit-function-declaration] Fixes: 38dc5079da7081e "Fix compat regression in process_vm_rw()" Reported-by: syzbot+5b0d0de84d6c65b8dd2b@xxxxxxxxxxxxxxxxxxxxxxxxx Cc: Kyle Huey <me@xxxxxxxxxxxx> Cc: Jens Axboe <axboe@xxxxxxxxx> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/process_vm_access.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/process_vm_access.c~mm-process_vm_accessc-include-compath +++ a/mm/process_vm_access.c @@ -9,6 +9,7 @@ #include <linux/mm.h> #include <linux/uio.h> #include <linux/sched.h> +#include <linux/compat.h> #include <linux/sched/mm.h> #include <linux/highmem.h> #include <linux/ptrace.h> _ Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are mm-page_alloc-add-a-missing-mm_page_alloc_zone_locked-tracepoint-fix.patch mm-process_vm_accessc-include-compath.patch mm.patch mm-memcg-slab-pre-allocate-obj_cgroups-for-slab-caches-with-slab_account-fix.patch mm-memcontrol-optimize-per-lruvec-stats-counter-memory-usage-checkpatch-fixes.patch kasan-fix-bug-detection-via-ksize-for-hw_tags-mode-fix.patch mm-cma-allocate-cma-areas-bottom-up-fix-3-fix.patch mm-vmstat-fix-proc-sys-vm-stat_refresh-generating-false-warnings-fix-2.patch kfence-kasan-make-kfence-compatible-with-kasan-fix.patch set_memory-allow-set_direct_map__noflush-for-multiple-pages-fix.patch arch-mm-wire-up-memfd_secret-system-call-were-relevant-fix.patch kernel-forkc-export-kernel_thread-to-modules.patch