Hi all, After merging the akpm-current tree, today's linux-next build (arm multi_v7_defconfig) produced this warning: lib/vsprintf.c: In function 'ptr_to_hashval': lib/vsprintf.c:766:14: warning: unused variable 'str' [-Wunused-variable] 766 | const char *str = sizeof(ptr) == 8 ? "(____ptrval____)" : "(ptrval)"; | ^~~ Introduced by commit aea87b9b95b9 ("rss_stat: add support to detect RSS updates of external mm") -- Cheers, Stephen Rothwell