Re: [PATCH v2 1/2] net, treewide: define and use MAC_ADDR_LEN

From: kernel test robot
Date: Thu Feb 06 2025 - 04:35:43 EST

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In reply to: Johannes Berg: "Re: [PATCH v2 1/2] net, treewide: define and use MAC_ADDR_LEN"
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Hi Uday,

kernel test robot noticed the following build warnings:

[auto build test WARNING on c2933b2befe25309f4c5cfbea0ca80909735fd76]

url: https://github.com/intel-lab-lkp/linux/commits/Uday-Shankar/net-treewide-define-and-use-MAC_ADDR_LEN/20250205-054620
base: c2933b2befe25309f4c5cfbea0ca80909735fd76
patch link: https://lore.kernel.org/r/20250204-netconsole-v2-1-5ef5eb5f6056%40purestorage.com
patch subject: [PATCH v2 1/2] net, treewide: define and use MAC_ADDR_LEN
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20250206/202502061751.GNyqzMGp-lkp@xxxxxxxxx/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250206/202502061751.GNyqzMGp-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/202502061751.GNyqzMGp-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

In file included from drivers/scsi/qla4xxx/ql4_os.c:8:
In file included from include/linux/blkdev.h:9:
In file included from include/linux/blk_types.h:10:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:8:
In file included from include/linux/cacheflush.h:5:
In file included from arch/x86/include/asm/cacheflush.h:5:
In file included from include/linux/mm.h:2224:
include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
505 | item];
| ~~~~
include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
512 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
525 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/scsi/qla4xxx/ql4_os.c:15:
>> drivers/scsi/qla4xxx/ql4_def.h:148:9: warning: 'MAC_ADDR_LEN' macro redefined [-Wmacro-redefined]
148 | #define MAC_ADDR_LEN 6 /* in bytes */
| ^
include/linux/if_ether.h:23:9: note: previous definition is here
23 | #define MAC_ADDR_LEN (3 * ETH_ALEN - 1)
| ^
4 warnings generated.
--
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8188ee/dm.c:4:
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8188ee/../wifi.h:11:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
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:8:
In file included from include/linux/cacheflush.h:5:
In file included from arch/x86/include/asm/cacheflush.h:5:
In file included from include/linux/mm.h:2224:
include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
505 | item];
| ~~~~
include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
512 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
525 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8188ee/dm.c:8:
>> drivers/net/wireless/realtek/rtlwifi/rtl8188ee/reg.h:1230:9: warning: 'MAC_ADDR_LEN' macro redefined [-Wmacro-redefined]
1230 | #define MAC_ADDR_LEN 6
| ^
include/linux/if_ether.h:23:9: note: previous definition is here
23 | #define MAC_ADDR_LEN (3 * ETH_ALEN - 1)
| ^
4 warnings generated.
--
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c:4:
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8192ee/../wifi.h:11:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
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:8:
In file included from include/linux/cacheflush.h:5:
In file included from arch/x86/include/asm/cacheflush.h:5:
In file included from include/linux/mm.h:2224:
include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
505 | item];
| ~~~~
include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
512 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
525 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c:8:
>> drivers/net/wireless/realtek/rtlwifi/rtl8192ee/reg.h:1192:9: warning: 'MAC_ADDR_LEN' macro redefined [-Wmacro-redefined]
1192 | #define MAC_ADDR_LEN 6
| ^
include/linux/if_ether.h:23:9: note: previous definition is here
23 | #define MAC_ADDR_LEN (3 * ETH_ALEN - 1)
| ^
4 warnings generated.
--
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c:4:
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8723ae/../wifi.h:11:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
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:8:
In file included from include/linux/cacheflush.h:5:
In file included from arch/x86/include/asm/cacheflush.h:5:
In file included from include/linux/mm.h:2224:
include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
505 | item];
| ~~~~
include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
512 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
525 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c:8:
>> drivers/net/wireless/realtek/rtlwifi/rtl8723ae/reg.h:1194:9: warning: 'MAC_ADDR_LEN' macro redefined [-Wmacro-redefined]
1194 | #define MAC_ADDR_LEN 6
| ^
include/linux/if_ether.h:23:9: note: previous definition is here
23 | #define MAC_ADDR_LEN (3 * ETH_ALEN - 1)
| ^
4 warnings generated.
--
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8723be/dm.c:4:
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8723be/../wifi.h:11:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
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:8:
In file included from include/linux/cacheflush.h:5:
In file included from arch/x86/include/asm/cacheflush.h:5:
In file included from include/linux/mm.h:2224:
include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
505 | item];
| ~~~~
include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
512 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
525 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8723be/dm.c:8:
>> drivers/net/wireless/realtek/rtlwifi/rtl8723be/reg.h:1245:9: warning: 'MAC_ADDR_LEN' macro redefined [-Wmacro-redefined]
1245 | #define MAC_ADDR_LEN 6
| ^
include/linux/if_ether.h:23:9: note: previous definition is here
23 | #define MAC_ADDR_LEN (3 * ETH_ALEN - 1)
| ^
4 warnings generated.
--
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c:4:
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8821ae/../wifi.h:11:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
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:8:
In file included from include/linux/cacheflush.h:5:
In file included from arch/x86/include/asm/cacheflush.h:5:
In file included from include/linux/mm.h:2224:
include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
505 | item];
| ~~~~
include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
512 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
525 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c:8:
>> drivers/net/wireless/realtek/rtlwifi/rtl8821ae/reg.h:1274:9: warning: 'MAC_ADDR_LEN' macro redefined [-Wmacro-redefined]
1274 | #define MAC_ADDR_LEN 6
| ^
include/linux/if_ether.h:23:9: note: previous definition is here
23 | #define MAC_ADDR_LEN (3 * ETH_ALEN - 1)
| ^
4 warnings generated.

vim +/MAC_ADDR_LEN +148 drivers/scsi/qla4xxx/ql4_def.h

afaf5a2d341d33 David Somayajulu 2006-09-19 144
afaf5a2d341d33 David Somayajulu 2006-09-19 145 /*
afaf5a2d341d33 David Somayajulu 2006-09-19 146 * Misc
afaf5a2d341d33 David Somayajulu 2006-09-19 147 */
afaf5a2d341d33 David Somayajulu 2006-09-19 @148 #define MAC_ADDR_LEN 6 /* in bytes */
afaf5a2d341d33 David Somayajulu 2006-09-19 149 #define IP_ADDR_LEN 4 /* in bytes */
2a49a78ed3c8d7 Vikas Chaudhary 2010-04-28 150 #define IPv6_ADDR_LEN 16 /* IPv6 address size */
afaf5a2d341d33 David Somayajulu 2006-09-19 151 #define DRIVER_NAME "qla4xxx"
afaf5a2d341d33 David Somayajulu 2006-09-19 152

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In reply to: Johannes Berg: "Re: [PATCH v2 1/2] net, treewide: define and use MAC_ADDR_LEN"
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