Re: [PATCH v2 4/7] PCI: intel-gw: Add start_link callback function

Re: [PATCH v2 4/7] PCI: intel-gw: Add start_link callback function

[kernel test robot]

Hi Florian,

kernel test robot noticed the following build warnings:

[auto build test WARNING on f338e77383789c0cae23ca3d48adcc5e9e137e3c]

url:    https://github.com/intel-lab-lkp/linux/commits/Florian-Eckert/PCI-intel-gw-Remove-unused-define/20260401-051352
base:   f338e77383789c0cae23ca3d48adcc5e9e137e3c
patch link:    https://lore.kernel.org/r/20260330-pcie-intel-gw-v2-4-8bd07367a298%40dev.tdt.de
patch subject: [PATCH v2 4/7] PCI: intel-gw: Add start_link callback function
config: arm64-randconfig-001-20260401 (https://download.01.org/0day-ci/archive/20260401/202604011157.4RiSNWVi-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260401/202604011157.4RiSNWVi-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604011157.4RiSNWVi-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/pci/controller/dwc/pcie-intel-gw.c:329:1: warning: unused label 'err' [-Wunused-label]
     329 | err:
         | ^~~~
   1 warning generated.


vim +/err +329 drivers/pci/controller/dwc/pcie-intel-gw.c

6cbd614d1f7c81 Florian Eckert 2026-03-30  296  
733770d4a2bea0 Fan Fei        2021-12-22  297  static int intel_pcie_host_setup(struct intel_pcie *pcie)
ed22aaaede44f6 Dilip Kota     2019-12-09  298  {
ed22aaaede44f6 Dilip Kota     2019-12-09  299  	int ret;
733770d4a2bea0 Fan Fei        2021-12-22  300  	struct dw_pcie *pci = &pcie->pci;
ed22aaaede44f6 Dilip Kota     2019-12-09  301  
733770d4a2bea0 Fan Fei        2021-12-22  302  	intel_pcie_core_rst_assert(pcie);
733770d4a2bea0 Fan Fei        2021-12-22  303  	intel_pcie_device_rst_assert(pcie);
733770d4a2bea0 Fan Fei        2021-12-22  304  	intel_pcie_core_rst_deassert(pcie);
ed22aaaede44f6 Dilip Kota     2019-12-09  305  
1927e1ec66a6ee Florian Eckert 2026-03-30  306  	/* Controller clock must be provided earlier than PHY */
733770d4a2bea0 Fan Fei        2021-12-22  307  	ret = clk_prepare_enable(pcie->core_clk);
ed22aaaede44f6 Dilip Kota     2019-12-09  308  	if (ret) {
733770d4a2bea0 Fan Fei        2021-12-22  309  		dev_err(pcie->pci.dev, "Core clock enable failed: %d\n", ret);
ed22aaaede44f6 Dilip Kota     2019-12-09  310  		goto clk_err;
ed22aaaede44f6 Dilip Kota     2019-12-09  311  	}
ed22aaaede44f6 Dilip Kota     2019-12-09  312  
1cc9a559993a4a Rob Herring    2020-11-05  313  	pci->atu_base = pci->dbi_base + 0xC0000;
1cc9a559993a4a Rob Herring    2020-11-05  314  
1927e1ec66a6ee Florian Eckert 2026-03-30  315  	ret = phy_init(pcie->phy);
1927e1ec66a6ee Florian Eckert 2026-03-30  316  	if (ret)
1927e1ec66a6ee Florian Eckert 2026-03-30  317  		goto phy_err;
1927e1ec66a6ee Florian Eckert 2026-03-30  318  
733770d4a2bea0 Fan Fei        2021-12-22  319  	intel_pcie_ltssm_disable(pcie);
733770d4a2bea0 Fan Fei        2021-12-22  320  	intel_pcie_link_setup(pcie);
1cc9a559993a4a Rob Herring    2020-11-05  321  	intel_pcie_init_n_fts(pci);
ce06bf570390fb Serge Semin    2022-06-24  322  
1cc9a559993a4a Rob Herring    2020-11-05  323  	dw_pcie_upconfig_setup(pci);
1cc9a559993a4a Rob Herring    2020-11-05  324  
4db57fd92a7d2d Florian Eckert 2026-03-30  325  	intel_pcie_core_irq_enable(pcie);
ed22aaaede44f6 Dilip Kota     2019-12-09  326  
ed22aaaede44f6 Dilip Kota     2019-12-09  327  	return 0;
ed22aaaede44f6 Dilip Kota     2019-12-09  328  
1927e1ec66a6ee Florian Eckert 2026-03-30 @329  err:
1927e1ec66a6ee Florian Eckert 2026-03-30  330  	phy_exit(pcie->phy);
1927e1ec66a6ee Florian Eckert 2026-03-30  331  phy_err:
733770d4a2bea0 Fan Fei        2021-12-22  332  	clk_disable_unprepare(pcie->core_clk);
ed22aaaede44f6 Dilip Kota     2019-12-09  333  clk_err:
733770d4a2bea0 Fan Fei        2021-12-22  334  	intel_pcie_core_rst_assert(pcie);
ed22aaaede44f6 Dilip Kota     2019-12-09  335  
ed22aaaede44f6 Dilip Kota     2019-12-09  336  	return ret;
ed22aaaede44f6 Dilip Kota     2019-12-09  337  }
ed22aaaede44f6 Dilip Kota     2019-12-09  338  

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