[l1k:aer_reset_v1 4/7] drivers/infiniband/hw/hfi1/pcie.c:569:3: warning: ignoring return value of function declared with 'warn_unused_result' attribute

[l1k:aer_reset_v1 4/7] drivers/infiniband/hw/hfi1/pcie.c:569:3: warning: ignoring return value of function declared with 'warn_unused_result' attribute

[kernel test robot]

tree:   https://github.com/l1k/linux aer_reset_v1
head:   aa7d1cb67ab66436de55f08005a7130768067322
commit: d3a669b8ded4ab05c102071648f1a737062fdab2 [4/7] IB/hfi1: Fix PCIe error handling
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250723/202507232117.pPyrrytf-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250723/202507232117.pPyrrytf-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/202507232117.pPyrrytf-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/infiniband/hw/hfi1/pcie.c:569:3: warning: ignoring return value of function declared with 'warn_unused_result' attribute [-Wunused-result]
     569 |                 pci_enable_device(pdev);
         |                 ^~~~~~~~~~~~~~~~~ ~~~~
   1 warning generated.


vim +/warn_unused_result +569 drivers/infiniband/hw/hfi1/pcie.c

   560	
   561	static pci_ers_result_t
   562	pci_slot_reset(struct pci_dev *pdev)
   563	{
   564		struct hfi1_devdata *dd = pci_get_drvdata(pdev);
   565	
   566		dd_dev_info(dd, "HFI1 slot_reset function called\n");
   567	
   568		if (pdev->error_state == pci_channel_io_frozen)
 > 569			pci_enable_device(pdev);
   570	
   571		/*
   572		 * Running jobs will fail, since it's asynchronous
   573		 * unlike sysfs-requested reset.   Better than
   574		 * doing nothing.
   575		 */
   576		if (hfi1_init(dd, 1)) /* same as re-init after reset */
   577			return PCI_ERS_RESULT_DISCONNECT;
   578	
   579		return PCI_ERS_RESULT_RECOVERED;
   580	}
   581	

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