Re: [PATCH v4.1 2/2] console: Add persistent scrollback buffers for all VGA consoles

From: kbuild test robot
Date: Wed Nov 16 2016 - 16:34:41 EST


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':
>> 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 <manuel.schoelling@xxxxxx>
:::::: CC: 0day robot <fengguang.wu@xxxxxxxxx>

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