Hi Sven, kernel test robot noticed the following build errors: [auto build test ERROR on s390/features] [also build test ERROR on linus/master v6.12-rc3 next-20241015] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Sven-Schnelle/s390-time-Add-clocksource-id-to-TOD-clock/20241015-185651 base: https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features patch link: https://lore.kernel.org/r/20241015105414.2825635-4-svens%40linux.ibm.com patch subject: [PATCH 3/3] s390/time: Add PtP driver config: um-x86_64_defconfig (https://download.01.org/0day-ci/archive/20241016/202410161404.V66COAYS-lkp@xxxxxxxxx/config) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241016/202410161404.V66COAYS-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410161404.V66COAYS-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/ptp/ptp_s390.c:7: In file included from drivers/ptp/ptp_private.h:16: In file included from include/linux/ptp_clock_kernel.h:15: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/ptp/ptp_s390.c:7: In file included from drivers/ptp/ptp_private.h:16: In file included from include/linux/ptp_clock_kernel.h:15: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/ptp/ptp_s390.c:7: In file included from drivers/ptp/ptp_private.h:16: In file included from include/linux/ptp_clock_kernel.h:15: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ drivers/ptp/ptp_s390.c:21:52: warning: declaration of 'union tod_clock' will not be visible outside of this function [-Wvisibility] static struct timespec64 eitod_to_timespec64(union tod_clock *clk) ^ >> drivers/ptp/ptp_s390.c:23:26: error: call to undeclared function 'eitod_to_ns'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] return ns_to_timespec64(eitod_to_ns(clk)); ^ >> drivers/ptp/ptp_s390.c:28:26: error: call to undeclared function 'tod_to_ns'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] return ns_to_timespec64(tod_to_ns(tod - TOD_UNIX_EPOCH)); ^ drivers/ptp/ptp_s390.c:28:42: error: use of undeclared identifier 'TOD_UNIX_EPOCH' return ns_to_timespec64(tod_to_ns(tod - TOD_UNIX_EPOCH)); ^ drivers/ptp/ptp_s390.c:34:18: error: variable has incomplete type 'union tod_clock' union tod_clock tod; ^ drivers/ptp/ptp_s390.c:34:8: note: forward declaration of 'union tod_clock' union tod_clock tod; ^ >> drivers/ptp/ptp_s390.c:36:7: error: call to undeclared function 'stp_enabled'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] if (!stp_enabled()) ^ drivers/ptp/ptp_s390.c:36:7: note: did you mean 'cpu_enabled'? include/linux/cpumask.h:1163:29: note: 'cpu_enabled' declared here static __always_inline bool cpu_enabled(unsigned int cpu) ^ >> drivers/ptp/ptp_s390.c:39:2: error: call to undeclared function 'store_tod_clock_ext_cc'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] store_tod_clock_ext_cc(&tod); ^ >> drivers/ptp/ptp_s390.c:49:2: error: call to undeclared function 'ptff'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] ptff(&tod, sizeof(tod), PTFF_QPT); ^ drivers/ptp/ptp_s390.c:49:26: error: use of undeclared identifier 'PTFF_QPT' ptff(&tod, sizeof(tod), PTFF_QPT); ^ drivers/ptp/ptp_s390.c:64:18: error: variable has incomplete type 'union tod_clock' union tod_clock clk; ^ drivers/ptp/ptp_s390.c:64:8: note: forward declaration of 'union tod_clock' union tod_clock clk; ^ drivers/ptp/ptp_s390.c:66:2: error: call to undeclared function 'store_tod_clock_ext_cc'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] store_tod_clock_ext_cc(&clk); ^ drivers/ptp/ptp_s390.c:67:29: error: call to undeclared function 'tod_to_ns'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] *device_time = ns_to_ktime(tod_to_ns(clk.tod - TOD_UNIX_EPOCH)); ^ drivers/ptp/ptp_s390.c:67:49: error: use of undeclared identifier 'TOD_UNIX_EPOCH' *device_time = ns_to_ktime(tod_to_ns(clk.tod - TOD_UNIX_EPOCH)); ^ drivers/ptp/ptp_s390.c:76:7: error: call to undeclared function 'stp_enabled'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] if (!stp_enabled()) ^ 13 warnings and 13 errors generated. vim +/eitod_to_ns +23 drivers/ptp/ptp_s390.c 20 21 static struct timespec64 eitod_to_timespec64(union tod_clock *clk) 22 { > 23 return ns_to_timespec64(eitod_to_ns(clk)); 24 } 25 26 static struct timespec64 tod_to_timespec64(unsigned long tod) 27 { > 28 return ns_to_timespec64(tod_to_ns(tod - TOD_UNIX_EPOCH)); 29 } 30 31 static int ptp_s390_stcke_gettime(struct ptp_clock_info *ptp, 32 struct timespec64 *ts) 33 { 34 union tod_clock tod; 35 > 36 if (!stp_enabled()) 37 return -EOPNOTSUPP; 38 > 39 store_tod_clock_ext_cc(&tod); 40 *ts = eitod_to_timespec64(&tod); 41 return 0; 42 } 43 44 static int ptp_s390_qpt_gettime(struct ptp_clock_info *ptp, 45 struct timespec64 *ts) 46 { 47 unsigned long tod; 48 > 49 ptff(&tod, sizeof(tod), PTFF_QPT); 50 *ts = tod_to_timespec64(tod); 51 return 0; 52 } 53 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
