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Message-ID: <202601171803.vxrrhXdF-lkp@intel.com>
Date: Sat, 17 Jan 2026 19:15:51 +0800
From: kernel test robot <lkp@...el.com>
To: Daniel Golle <daniel@...rotopia.org>, Hauke Mehrtens <hauke@...ke-m.de>,
Andrew Lunn <andrew@...n.ch>, Vladimir Oltean <olteanv@...il.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Russell King <linux@...linux.org.uk>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
netdev@...r.kernel.org, Chen Minqiang <ptpt52@...il.com>,
Xinfa Deng <xinfa.deng@...inet.com>
Subject: Re: [PATCH net-next v4 3/6] net: dsa: lantiq: allow arbitrary MII
registers
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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601171803.vxrrhXdF-lkp@intel.com/
All errors (new ones prefixed by >>):
>> 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
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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