Hi Daniel,

kernel test robot noticed the following build errors:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Daniel-Golle/dt-bindings-net-dsa-lantiq-gswip-use-correct-node-name/20260117-092406
base:   net-next/main
patch link:    https://lore.kernel.org/r/d5cbb8c5917197d44b62d39c9799212d1b3fe390.1768612113.git.daniel%40makrotopia.org
patch subject: [PATCH net-next v4 3/6] net: dsa: lantiq: allow arbitrary MII registers
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20260117/202601171803.vxrrhXdF-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260117/202601171803.vxrrhXdF-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 [off-list ref]
| Closes: https://lore.kernel.org/oe-kbuild-all/202601171803.vxrrhXdF-lkp@intel.com/ (local)

All errors (new ones prefixed by >>):

quoted

drivers/net/dsa/lantiq/mxl-gsw1xx.c:708:28: error: array designator index (7) exceeds array bounds (7)

     708 |                 [GSW1XX_MII_PORT + 1 ... GSWIP_MAX_PORTS] = -1,
         |                                          ^~~~~~~~~~~~~~~
   drivers/net/dsa/lantiq/lantiq_gswip.h:246:26: note: expanded from macro 'GSWIP_MAX_PORTS'
     246 | #define GSWIP_MAX_PORTS         7
         |                                 ^
   drivers/net/dsa/lantiq/mxl-gsw1xx.c:713:28: error: array designator index (7) exceeds array bounds (7)
     713 |                 [GSW1XX_MII_PORT + 1 ... GSWIP_MAX_PORTS] = -1,
         |                                          ^~~~~~~~~~~~~~~
   drivers/net/dsa/lantiq/lantiq_gswip.h:246:26: note: expanded from macro 'GSWIP_MAX_PORTS'
     246 | #define GSWIP_MAX_PORTS         7
         |                                 ^
   drivers/net/dsa/lantiq/mxl-gsw1xx.c:749:23: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
     749 |                 [GSW1XX_MII_PORT] = GSWIP_MII_CFGp(0),
         |                                     ^~~~~~~~~~~~~~~~~
   drivers/net/dsa/lantiq/lantiq_gswip.h:60:28: note: expanded from macro 'GSWIP_MII_CFGp'
      60 | #define GSWIP_MII_CFGp(p)               (0x2 * (p))
         |                                         ^~~~~~~~~~~
   drivers/net/dsa/lantiq/mxl-gsw1xx.c:748:33: note: previous initialization is here
     748 |                 [0 ... GSWIP_MAX_PORTS - 1] = -1,
         |                                               ^~
   drivers/net/dsa/lantiq/mxl-gsw1xx.c:750:51: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
     750 |                 [GSW1XX_MII_PORT + 1 ... GSWIP_MAX_PORTS - 1] = -1,
         |                                                                 ^~
   drivers/net/dsa/lantiq/mxl-gsw1xx.c:748:33: note: previous initialization is here
     748 |                 [0 ... GSWIP_MAX_PORTS - 1] = -1,
         |                                               ^~
   drivers/net/dsa/lantiq/mxl-gsw1xx.c:754:23: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
     754 |                 [GSW1XX_MII_PORT] = GSWIP_MII_PCDU0,
         |                                     ^~~~~~~~~~~~~~~
   drivers/net/dsa/lantiq/lantiq_gswip.h:80:27: note: expanded from macro 'GSWIP_MII_PCDU0'
      80 | #define GSWIP_MII_PCDU0                 0x01
         |                                         ^~~~
   drivers/net/dsa/lantiq/mxl-gsw1xx.c:753:33: note: previous initialization is here
     753 |                 [0 ... GSWIP_MAX_PORTS - 1] = -1,
         |                                               ^~
   drivers/net/dsa/lantiq/mxl-gsw1xx.c:755:51: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
     755 |                 [GSW1XX_MII_PORT + 1 ... GSWIP_MAX_PORTS - 1] = -1,
         |                                                                 ^~
   drivers/net/dsa/lantiq/mxl-gsw1xx.c:753:33: note: previous initialization is here
     753 |                 [0 ... GSWIP_MAX_PORTS - 1] = -1,
         |                                               ^~
   4 warnings and 2 errors generated.


vim +708 drivers/net/dsa/lantiq/mxl-gsw1xx.c

   701	
   702	static const struct gswip_hw_info gsw12x_data = {
   703		.max_ports		= GSW1XX_PORTS,
   704		.allowed_cpu_ports	= BIT(GSW1XX_MII_PORT) | BIT(GSW1XX_SGMII_PORT),
   705		.mii_cfg = {
   706			[0 ... GSW1XX_MII_PORT - 1] = -1,
   707			[GSW1XX_MII_PORT] = GSWIP_MII_CFGp(0),
 > 708			[GSW1XX_MII_PORT + 1 ... GSWIP_MAX_PORTS] = -1,
   709		},
   710		.mii_pcdu = {
   711			[0 ... GSW1XX_MII_PORT - 1] = -1,
   712			[GSW1XX_MII_PORT] = GSWIP_MII_PCDU0,
   713			[GSW1XX_MII_PORT + 1 ... GSWIP_MAX_PORTS] = -1,
   714		},
   715		.mac_select_pcs		= gsw1xx_phylink_mac_select_pcs,
   716		.phylink_get_caps	= &gsw1xx_phylink_get_caps,
   717		.supports_2500m		= true,
   718		.pce_microcode		= &gsw1xx_pce_microcode,
   719		.pce_microcode_size	= ARRAY_SIZE(gsw1xx_pce_microcode),
   720		.tag_protocol		= DSA_TAG_PROTO_MXL_GSW1XX,
   721	};
   722	

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