Hi Leandro, Thank you for the patch! Yet something to improve: [auto build test ERROR on net/master] url: https://github.com/0day-ci/linux/commits/Leandro-Dorileo/net-sched-taprio-fix-picos_per_byte-miscalculation/20190329-185809 config: i386-randconfig-l0-03292131 (attached as .config) compiler: gcc-5 (Debian 5.5.0-3) 5.4.1 20171010 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): net/sched/sch_taprio.o: In function `ktime_compare': >> include/linux/ktime.h:116: undefined reference to `__divdi3' net/sched/sch_taprio.o: In function `__write_once_size': >> include/linux/compiler.h:219: undefined reference to `__divdi3' >> include/linux/compiler.h:219: undefined reference to `__divdi3' vim +116 include/linux/ktime.h 97fc79f9 Thomas Gleixner 2006-01-09 101 398f382c Daniel Borkmann 2012-10-28 102 /** 398f382c Daniel Borkmann 2012-10-28 103 * ktime_compare - Compares two ktime_t variables for less, greater or equal 398f382c Daniel Borkmann 2012-10-28 104 * @cmp1: comparable1 398f382c Daniel Borkmann 2012-10-28 105 * @cmp2: comparable2 398f382c Daniel Borkmann 2012-10-28 106 * 36019265 Yacine Belkadi 2013-07-24 107 * Return: ... 398f382c Daniel Borkmann 2012-10-28 108 * cmp1 < cmp2: return <0 398f382c Daniel Borkmann 2012-10-28 109 * cmp1 == cmp2: return 0 398f382c Daniel Borkmann 2012-10-28 110 * cmp1 > cmp2: return >0 398f382c Daniel Borkmann 2012-10-28 111 */ 398f382c Daniel Borkmann 2012-10-28 112 static inline int ktime_compare(const ktime_t cmp1, const ktime_t cmp2) 398f382c Daniel Borkmann 2012-10-28 113 { 2456e855 Thomas Gleixner 2016-12-25 114 if (cmp1 < cmp2) 398f382c Daniel Borkmann 2012-10-28 115 return -1; 2456e855 Thomas Gleixner 2016-12-25 @116 if (cmp1 > cmp2) 398f382c Daniel Borkmann 2012-10-28 117 return 1; 398f382c Daniel Borkmann 2012-10-28 118 return 0; 398f382c Daniel Borkmann 2012-10-28 119 } 398f382c Daniel Borkmann 2012-10-28 120 :::::: The code at line 116 was first introduced by commit :::::: 2456e855354415bfaeb7badaa14e11b3e02c8466 ktime: Get rid of the union :::::: TO: Thomas Gleixner :::::: CC: Thomas Gleixner --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation