Hi Manuel, [auto build test ERROR on linus/master] [also build test ERROR on v4.9-rc5 next-20161116] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Manuel-Sch-lling/console-Move-scrollback-data-into-its-own-struct/20161117-024343 config: x86_64-kexec (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/video/console/vgacon.c: In function 'vgacon_scrolldelta': >> drivers/video/console/vgacon.c:279:14: error: 'vgacon_scrollback_cnt' undeclared (first use in this function) if (start > vgacon_scrollback_cnt) ^~~~~~~~~~~~~~~~~~~~~ drivers/video/console/vgacon.c:279:14: note: each undeclared identifier is reported only once for each function it appears in vim +/vgacon_scrollback_cnt +279 drivers/video/console/vgacon.c adc80b064 Manuel Schölling 2016-11-16 273 start = vgacon_scrollback.cur + lines; 15bdab959 Antonino A. Daplas 2006-03-27 274 end = start + abs(lines); 15bdab959 Antonino A. Daplas 2006-03-27 275 15bdab959 Antonino A. Daplas 2006-03-27 276 if (start < 0) 15bdab959 Antonino A. Daplas 2006-03-27 277 start = 0; 15bdab959 Antonino A. Daplas 2006-03-27 278 15bdab959 Antonino A. Daplas 2006-03-27 @279 if (start > vgacon_scrollback_cnt) 15bdab959 Antonino A. Daplas 2006-03-27 280 start = vgacon_scrollback_cnt; 15bdab959 Antonino A. Daplas 2006-03-27 281 15bdab959 Antonino A. Daplas 2006-03-27 282 if (end < 0) :::::: The code at line 279 was first introduced by commit :::::: 15bdab959c9bb909c0317480dd9b35748a8f7887 [PATCH] vgacon: Add support for soft scrollback :::::: TO: Antonino A. Daplas :::::: CC: Linus Torvalds --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation