Hi Richard, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.14 next-20171124] [cannot apply to ljones-mfd/for-mfd-next asoc/for-next] [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/Richard-Fitzgerald/Add-support-for-Cirrus-Logic-CS47L35-L85-L90-L91-codecs/20171126-145824 config: i386-randconfig-a1-201748 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: # save the attached .config to linux build tree make ARCH=i386 Note: the linux-review/Richard-Fitzgerald/Add-support-for-Cirrus-Logic-CS47L35-L85-L90-L91-codecs/20171126-145824 HEAD 7f8a24863888ec8cffb97f9849b2d22564f564fb builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): In file included from include/linux/mfd/madera/core.h:17:0, from drivers/regulator/arizona-ldo1.c:34: >> include/linux/mfd/madera/pdata.h:19:32: fatal error: sound/madera-pdata.h: No such file or directory #include ^ compilation terminated. vim +19 include/linux/mfd/madera/pdata.h 0d9fb60e Richard Fitzgerald 2017-11-23 13 0d9fb60e Richard Fitzgerald 2017-11-23 14 #include 0d9fb60e Richard Fitzgerald 2017-11-23 15 #include 0d9fb60e Richard Fitzgerald 2017-11-23 16 #include 0d9fb60e Richard Fitzgerald 2017-11-23 17 #include 0d9fb60e Richard Fitzgerald 2017-11-23 18 #include 0d9fb60e Richard Fitzgerald 2017-11-23 @19 #include 0d9fb60e Richard Fitzgerald 2017-11-23 20 :::::: The code at line 19 was first introduced by commit :::::: 0d9fb60e7fd7381d8adc6c16ea0b78ee9668a565 mfd: madera: Add common support for Cirrus Logic Madera codecs :::::: TO: Richard Fitzgerald :::::: CC: 0day robot --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation