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charset=us-ascii Content-Disposition: inline CC: linux-kernel@vger.kernel.org TO: Moshe Shemesh CC: Jakub Kicinski CC: Jiri Pirko Hi Moshe, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 5847c9777c303a792202c609bd761dceb60f4eed commit: c6ed7d6ef929a4502cc89c90a3c57e8814f4fcc9 devlink: Move devlink dev reload code to dev date: 1 year, 1 month ago config: s390-defconfig (https://download.01.org/0day-ci/archive/20240306/202403061542.jGhvg3Xs-lkp@intel.com/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 325f51237252e6dab8e4e1ea1fa7acbb4faee1cd) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240306/202403061542.jGhvg3Xs-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202403061542.jGhvg3Xs-lkp@intel.com/ All warnings (new ones prefixed by >>): 516 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:521:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 521 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 522 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:530:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 530 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 531 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ In file included from net/devlink/dev.c:7: In file included from include/net/genetlink.h:5: In file included from include/linux/genetlink.h:5: In file included from include/uapi/linux/genetlink.h:6: In file included from include/linux/netlink.h:7: In file included from include/linux/skbuff.h:28: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) | ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' 102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) | ^ In file included from net/devlink/dev.c:7: In file included from include/net/genetlink.h:5: In file included from include/linux/genetlink.h:5: In file included from include/uapi/linux/genetlink.h:6: In file included from include/linux/netlink.h:7: In file included from include/linux/skbuff.h:28: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) | ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) | ^ In file included from net/devlink/dev.c:7: In file included from include/net/genetlink.h:5: In file included from include/linux/genetlink.h:5: In file included from include/uapi/linux/genetlink.h:6: In file included from include/linux/netlink.h:7: In file included from include/linux/skbuff.h:28: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 692 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 700 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 708 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 717 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 726 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 735 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ In file included from net/devlink/dev.c:9: net/devlink/devl_internal.h:21:19: warning: arithmetic between different enumeration types ('enum devlink_reload_limit' and 'enum devlink_reload_action') [-Wenum-enum-conversion] 21 | u32 reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/devlink/devl_internal.h:18:30: note: expanded from macro 'DEVLINK_RELOAD_STATS_ARRAY_SIZE' 18 | (__DEVLINK_RELOAD_LIMIT_MAX * __DEVLINK_RELOAD_ACTION_MAX) | ~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/devlink/devl_internal.h:22:26: warning: arithmetic between different enumeration types ('enum devlink_reload_limit' and 'enum devlink_reload_action') [-Wenum-enum-conversion] 22 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/devlink/devl_internal.h:18:30: note: expanded from macro 'DEVLINK_RELOAD_STATS_ARRAY_SIZE' 18 | (__DEVLINK_RELOAD_LIMIT_MAX * __DEVLINK_RELOAD_ACTION_MAX) | ~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> net/devlink/dev.c:248:20: warning: arithmetic between different enumeration types ('enum devlink_reload_limit' and 'enum devlink_reload_action') [-Wenum-enum-conversion] 248 | stat_idx = limit * __DEVLINK_RELOAD_ACTION_MAX + action; | ~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/devlink/dev.c:349:26: warning: arithmetic between different enumeration types ('enum devlink_reload_limit' and 'enum devlink_reload_action') [-Wenum-enum-conversion] 349 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/devlink/devl_internal.h:18:30: note: expanded from macro 'DEVLINK_RELOAD_STATS_ARRAY_SIZE' 18 | (__DEVLINK_RELOAD_LIMIT_MAX * __DEVLINK_RELOAD_ACTION_MAX) | ~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~ 21 warnings generated. vim +248 net/devlink/dev.c 238 239 static void 240 __devlink_reload_stats_update(struct devlink *devlink, u32 *reload_stats, 241 enum devlink_reload_limit limit, u32 actions_performed) 242 { 243 unsigned long actions = actions_performed; 244 int stat_idx; 245 int action; 246 247 for_each_set_bit(action, &actions, __DEVLINK_RELOAD_ACTION_MAX) { > 248 stat_idx = limit * __DEVLINK_RELOAD_ACTION_MAX + action; 249 reload_stats[stat_idx]++; 250 } 251 devlink_notify(devlink, DEVLINK_CMD_NEW); 252 } 253 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki