Hi Manuel,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.9-rc5 next-20161116]
[cannot apply to v4.1]
[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-Add-persistent-scrollback-buffers-for-all-VGA-console/20161117-051658
config: x86_64-randconfig-x015-201646 (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':

quoted

drivers/video/console/vgacon.c:332:14: error: 'vgacon_scrollback' undeclared (first use in this function)

     if (start > vgacon_scrollback.cnt)
                 ^~~~~~~~~~~~~~~~~
   drivers/video/console/vgacon.c:332:14: note: each undeclared identifier is reported only once for each function it appears in

vim +/vgacon_scrollback +332 drivers/video/console/vgacon.c

25056ccd Manuel Schölling   2016-11-16  326  	start = vgacon_scrollback_cur->cur + lines;
15bdab95 Antonino A. Daplas 2006-03-27  327  	end = start + abs(lines);
15bdab95 Antonino A. Daplas 2006-03-27  328  
15bdab95 Antonino A. Daplas 2006-03-27  329  	if (start < 0)
15bdab95 Antonino A. Daplas 2006-03-27  330  		start = 0;
15bdab95 Antonino A. Daplas 2006-03-27  331  
18add6b3 Manuel Schölling   2016-11-16 @332  	if (start > vgacon_scrollback.cnt)
18add6b3 Manuel Schölling   2016-11-16  333  		start = vgacon_scrollback.cnt;
15bdab95 Antonino A. Daplas 2006-03-27  334  
15bdab95 Antonino A. Daplas 2006-03-27  335  	if (end < 0)

:::::: The code at line 332 was first introduced by commit
:::::: 18add6b31208f391323fcaa95f80c4f61d7bdd06 console: Move scrollback data into its own struct

:::::: TO: Manuel Schölling [off-list ref]
:::::: CC: 0day robot [off-list ref]

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