Hi Arnd, [auto build test ERROR on staging/staging-testing] [also build test ERROR on next-20151117] [cannot apply to v4.4-rc1] url: https://github.com/0day-ci/linux/commits/Arnd-Bergmann/staging-wilc1000-cleanups/20151116-221148 config: x86_64-randconfig-s1-11171709 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 Note: the linux-review/Arnd-Bergmann/staging-wilc1000-cleanups/20151116-221148 HEAD 4f5bc10a2d185cc4ec5ab4741a5b3c6badbd4773 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): drivers/staging/wilc1000/linux_wlan.c: In function 'wilc_netdev_init': >> drivers/staging/wilc1000/linux_wlan.c:1513:26: error: 'wilc_spi_dev' undeclared (first use in this function) wilc_dev->wilc_spidev = wilc_spi_dev; ^ drivers/staging/wilc1000/linux_wlan.c:1513:26: note: each undeclared identifier is reported only once for each function it appears in vim +/wilc_spi_dev +1513 drivers/staging/wilc1000/linux_wlan.c c5c77ba1 Johnny Kim 2015-05-11 1507 c5c77ba1 Johnny Kim 2015-05-11 1508 #ifndef WILC_SDIO 412cfe78 Arnd Bergmann 2015-11-16 1509 if (!wilc_spi_init()) { c5c77ba1 Johnny Kim 2015-05-11 1510 PRINT_ER("Can't initialize SPI\n"); 98b89847 Leo Kim 2015-11-05 1511 return -1; c5c77ba1 Johnny Kim 2015-05-11 1512 } 412cfe78 Arnd Bergmann 2015-11-16 @1513 wilc_dev->wilc_spidev = wilc_spi_dev; c5c77ba1 Johnny Kim 2015-05-11 1514 #else 412cfe78 Arnd Bergmann 2015-11-16 1515 wilc_dev->wilc_sdio_func = wilc_sdio_func; c5c77ba1 Johnny Kim 2015-05-11 1516 #endif :::::: The code at line 1513 was first introduced by commit :::::: 412cfe7872b71d3699593bb3afd7ad804bd57c7a staging/wilc1000: use proper naming for global symbols :::::: TO: Arnd Bergmann :::::: CC: 0day robot --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation