Hi James, I love your patch! Perhaps something to improve: [auto build test WARNING on mkp-scsi/for-next] [also build test WARNING on scsi/for-next linus/master v5.6 next-20200411] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/James-Smart/efct-Broadcom-Emulex... base: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next config: parisc-allyesconfig (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=9.3.0 make.cross ARCH=parisc If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from include/uapi/linux/ioctl.h:5, from include/uapi/linux/fs.h:14, from include/linux/fs.h:45, from include/linux/huge_mm.h:8, from include/linux/mm.h:567, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1414, from drivers/scsi/elx/efct/efct_driver.h:23, from drivers/scsi/elx/efct/efct_driver.c:7: 40 | #define _IOC_WRITE 2U | In file included from include/asm-generic/ioctl.h:5, from drivers/scsi/elx/efct/efct_driver.h:20, from drivers/scsi/elx/efct/efct_driver.c:7: include/uapi/asm-generic/ioctl.h:62: note: this is the location of the previous definition 62 | # define _IOC_WRITE 1U | In file included from include/uapi/linux/ioctl.h:5, from include/uapi/linux/fs.h:14, from include/linux/fs.h:45, from include/linux/huge_mm.h:8, from include/linux/mm.h:567, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1414, from drivers/scsi/elx/efct/efct_driver.h:23, from drivers/scsi/elx/efct/efct_driver.c:7: 41 | #define _IOC_READ 1U | In file included from include/asm-generic/ioctl.h:5, from drivers/scsi/elx/efct/efct_driver.h:20, from drivers/scsi/elx/efct/efct_driver.c:7: include/uapi/asm-generic/ioctl.h:66: note: this is the location of the previous definition 66 | # define _IOC_READ 2U | vim +/_IOC_WRITE +40 arch/parisc/include/uapi/asm/ioctl.h ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 25 ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 26 /* ioctl command encoding: 32 bits total, command in lower 16 bits, ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 27 * size of the parameter structure in the lower 14 bits of the ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 28 * upper 16 bits. ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 29 * Encoding the size of the parameter structure in the ioctl request ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 30 * is useful for catching programs compiled with old versions ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 31 * and to avoid overwriting user space outside the user buffer area. ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 32 * The highest 2 bits are reserved for indicating the ``access mode''. ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 33 * NOTE: This limits the max parameter size to 16kB -1 ! ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 34 */ ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 35 ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 36 /* ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 37 * Direction bits. ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 38 */ ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 39 #define _IOC_NONE 0U ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 @40 #define _IOC_WRITE 2U ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 @41 #define _IOC_READ 1U ^1da177e4c3f41 include/asm-parisc/ioctl.h Linus Torvalds 2005-04-16 42 :::::: The code at line 40 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; :::::: CC: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org