The following patch causes a build failure: Author: Henry Burns <henryburns@xxxxxxxxxx> Date: Sat Aug 24 17:55:06 2019 -0700 mm/zsmalloc.c: fix race condition in zs_destroy_pool I get this error: CALL scripts/checksyscalls.sh CALL scripts/atomic/check-atomics.sh DESCEND objtool CHK include/generated/compile.h CC mm/zsmalloc.o In file included from ./include/linux/mmzone.h:10:0, from ./include/linux/gfp.h:6, from ./include/linux/umh.h:4, from ./include/linux/kmod.h:9, from ./include/linux/module.h:13, from mm/zsmalloc.c:33: mm/zsmalloc.c: In function ‘zs_create_pool’: mm/zsmalloc.c:2435:27: error: ‘struct zs_pool’ has no member named ‘migration_wait’ init_waitqueue_head(&pool->migration_wait); ^ ./include/linux/wait.h:67:26: note: in definition of macro ‘init_waitqueue_head’ __init_waitqueue_head((wq_head), #wq_head, &__key); \ ^~~~~~~ scripts/Makefile.build:278: recipe for target 'mm/zsmalloc.o' failed make[1]: *** [mm/zsmalloc.o] Error 1 Makefile:1073: recipe for target 'mm' failed You can find my configuration file attached. Does anybody have any idea about this ? Thanks in advance, François Valenduc