Hi Wolfram, After merging the i2c tree, today's linux-next build (x86_64 allmodconfig) failed like this: drivers/i2c/busses/i2c-zx2967.c: In function 'zx2967_i2c_writesb': drivers/i2c/busses/i2c-zx2967.c:87:2: error: implicit declaration of function 'writesb' [-Werror=implicit-function-declaration] writesb(i2c->reg_base + reg, data, len); ^ drivers/i2c/busses/i2c-zx2967.c: In function 'zx2967_i2c_readsb': drivers/i2c/busses/i2c-zx2967.c:93:2: error: implicit declaration of function 'readsb' [-Werror=implicit-function-declaration] readsb(i2c->reg_base + reg, data, len); ^ Caused by commit 9615a01f71ca ("i2c: zx2967: add i2c controller driver for ZTE's zx2967 family") Forgotten some include file, presumably. And COMPILE_TEST may have been a bit hopeful :-) I have used the i2c tree from next-20170623 for today. -- Cheers, Stephen Rothwell -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html