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Subjectdrivers/gpu/drm/bridge/sil-sii8620.c:2405: undefined reference to `extcon_unregister_notifier'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 625e2001e99e82ea3eb5b0370a428a4328b9166b
commit: eb27fde2731b6cb5818493b8ac18e01f427e335f eeprom: at24: drop redundant variable in at24_read()
date: 6 weeks ago
config: x86_64-randconfig-g0-05042232 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
git checkout eb27fde2731b6cb5818493b8ac18e01f427e335f
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

drivers/gpu/drm/bridge/sil-sii8620.o: In function `sii8620_remove':
>> /kbuild/src/smoke/drivers/gpu/drm/bridge/sil-sii8620.c:2405: undefined reference to `extcon_unregister_notifier'
drivers/gpu/drm/bridge/sil-sii8620.o: In function `sii8620_extcon_work':
>> /kbuild/src/smoke/drivers/gpu/drm/bridge/sil-sii8620.c:2189: undefined reference to `extcon_get_state'
--
drivers/gpu/drm/bridge/sil-sii8620.o: In function `sii8620_remove':
>> drivers/gpu/drm/bridge/sil-sii8620.c:2405: undefined reference to `extcon_unregister_notifier'
drivers/gpu/drm/bridge/sil-sii8620.o: In function `sii8620_extcon_work':
>> drivers/gpu/drm/bridge/sil-sii8620.c:2189: undefined reference to `extcon_get_state'

vim +2405 drivers/gpu/drm/bridge/sil-sii8620.c

ce6e153f Andrzej Hajda 2016-10-10 2399
ce6e153f Andrzej Hajda 2016-10-10 2400 static int sii8620_remove(struct i2c_client *client)
ce6e153f Andrzej Hajda 2016-10-10 2401 {
ce6e153f Andrzej Hajda 2016-10-10 2402 struct sii8620 *ctx = i2c_get_clientdata(client);
ce6e153f Andrzej Hajda 2016-10-10 2403
68883844 Maciej Purski 2018-02-27 2404 if (ctx->extcon) {
68883844 Maciej Purski 2018-02-27 @2405 extcon_unregister_notifier(ctx->extcon, EXTCON_DISP_MHL,
68883844 Maciej Purski 2018-02-27 2406 &ctx->extcon_nb);
68883844 Maciej Purski 2018-02-27 2407 flush_work(&ctx->extcon_wq);
68883844 Maciej Purski 2018-02-27 2408 if (ctx->cable_state > 0)
68883844 Maciej Purski 2018-02-27 2409 sii8620_cable_out(ctx);
68883844 Maciej Purski 2018-02-27 2410 } else {
68883844 Maciej Purski 2018-02-27 2411 sii8620_cable_out(ctx);
68883844 Maciej Purski 2018-02-27 2412 }
e25f1f7c Maciej Purski 2017-08-24 2413 drm_bridge_remove(&ctx->bridge);
ce6e153f Andrzej Hajda 2016-10-10 2414
ce6e153f Andrzej Hajda 2016-10-10 2415 return 0;
ce6e153f Andrzej Hajda 2016-10-10 2416 }
ce6e153f Andrzej Hajda 2016-10-10 2417

:::::: The code at line 2405 was first introduced by commit
:::::: 688838442147d9dd94c2ef7c2c31a35cf150c5fa drm/bridge/sii8620: use micro-USB cable detection logic to detect MHL

:::::: TO: Maciej Purski <m.purski@samsung.com>
:::::: CC: Chanwoo Choi <cw00.choi@samsung.com>

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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