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From: kernel test robot <lkp@intel.com>
To: "Niklas Cassel" <cassel@kernel.org>,
	"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Kishon Vijay Abraham I" <kishon@kernel.org>,
	"Bjorn Helgaas" <helgaas@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev,
	Shradha Todi <shradha.t@samsung.com>,
	Damien Le Moal <dlemoal@kernel.org>,
	Niklas Cassel <cassel@kernel.org>,
	linux-pci@vger.kernel.org
Subject: Re: [PATCH v2 5/9] PCI: endpoint: pci-epf-test: Simplify pci_epf_test_set_bar() loop
Date: Wed, 13 Mar 2024 10:11:02 +0800	[thread overview]
Message-ID: <202403131004.Z9epuI06-lkp@intel.com> (raw)
In-Reply-To: <20240312105152.3457899-6-cassel@kernel.org>

Hi Niklas,

kernel test robot noticed the following build warnings:

[auto build test WARNING on pci/next]
[also build test WARNING on next-20240312]
[cannot apply to pci/for-linus mani-mhi/mhi-next linus/master v6.8]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Niklas-Cassel/PCI-endpoint-pci-epf-test-Fix-incorrect-loop-increment/20240312-185512
base:   https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next
patch link:    https://lore.kernel.org/r/20240312105152.3457899-6-cassel%40kernel.org
patch subject: [PATCH v2 5/9] PCI: endpoint: pci-epf-test: Simplify pci_epf_test_set_bar() loop
config: arc-randconfig-001-20240313 (https://download.01.org/0day-ci/archive/20240313/202403131004.Z9epuI06-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240313/202403131004.Z9epuI06-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/202403131004.Z9epuI06-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/pci/endpoint/functions/pci-epf-test.c: In function 'pci_epf_test_set_bar':
>> drivers/pci/endpoint/functions/pci-epf-test.c:717:40: warning: variable 'epc_features' set but not used [-Wunused-but-set-variable]
     717 |         const struct pci_epc_features *epc_features;
         |                                        ^~~~~~~~~~~~


vim +/epc_features +717 drivers/pci/endpoint/functions/pci-epf-test.c

349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  709  
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  710  static int pci_epf_test_set_bar(struct pci_epf *epf)
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  711  {
2287a91bfd63cb Niklas Cassel          2024-03-12  712  	int bar, ret;
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  713  	struct pci_epc *epc = epf->epc;
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  714  	struct device *dev = &epf->dev;
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  715  	struct pci_epf_test *epf_test = epf_get_drvdata(epf);
3235b994950d84 Kishon Vijay Abraham I 2017-08-18  716  	enum pci_barno test_reg_bar = epf_test->test_reg_bar;
2c04c5b8eef797 Kishon Vijay Abraham I 2019-01-14 @717  	const struct pci_epc_features *epc_features;
2c04c5b8eef797 Kishon Vijay Abraham I 2019-01-14  718  
2c04c5b8eef797 Kishon Vijay Abraham I 2019-01-14  719  	epc_features = epf_test->epc_features;
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  720  
2287a91bfd63cb Niklas Cassel          2024-03-12  721  	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
2287a91bfd63cb Niklas Cassel          2024-03-12  722  		if (!epf_test->reg[bar])
2c04c5b8eef797 Kishon Vijay Abraham I 2019-01-14  723  			continue;
2c04c5b8eef797 Kishon Vijay Abraham I 2019-01-14  724  
53fd3cbe5e9d79 Kishon Vijay Abraham I 2021-08-19  725  		ret = pci_epc_set_bar(epc, epf->func_no, epf->vfunc_no,
2287a91bfd63cb Niklas Cassel          2024-03-12  726  				      &epf->bar[bar]);
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  727  		if (ret) {
63840ff5322373 Kishon Vijay Abraham I 2021-02-02  728  			pci_epf_free_space(epf, epf_test->reg[bar], bar,
63840ff5322373 Kishon Vijay Abraham I 2021-02-02  729  					   PRIMARY_INTERFACE);
798c0441bec8c4 Gustavo Pimentel       2018-05-14  730  			dev_err(dev, "Failed to set BAR%d\n", bar);
3235b994950d84 Kishon Vijay Abraham I 2017-08-18  731  			if (bar == test_reg_bar)
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  732  				return ret;
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  733  		}
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  734  	}
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  735  
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  736  	return 0;
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  737  }
349e7a85b25fa6 Kishon Vijay Abraham I 2017-03-27  738  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

  reply	other threads:[~2024-03-13  2:11 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-12 10:51 [PATCH v2 0/9] PCI: endpoint: set prefetchable bit for 64-bit BARs Niklas Cassel
2024-03-12 10:51 ` Niklas Cassel
2024-03-12 10:51 ` Niklas Cassel
2024-03-12 10:51 ` [PATCH v2 1/9] PCI: endpoint: pci-epf-test: Fix incorrect loop increment Niklas Cassel
2024-03-12 10:51 ` [PATCH v2 2/9] PCI: endpoint: Allocate a 64-bit BAR if that is the only option Niklas Cassel
2024-03-12 10:51 ` [PATCH v2 3/9] PCI: endpoint: pci-epf-test: Remove superfluous code Niklas Cassel
2024-03-12 10:51 ` [PATCH v2 4/9] PCI: endpoint: pci-epf-test: Simplify pci_epf_test_alloc_space() loop Niklas Cassel
2024-03-12 10:51 ` [PATCH v2 5/9] PCI: endpoint: pci-epf-test: Simplify pci_epf_test_set_bar() loop Niklas Cassel
2024-03-13  2:11   ` kernel test robot [this message]
2024-03-12 10:51 ` [PATCH v2 6/9] PCI: endpoint: pci-epf-test: Clean up pci_epf_test_unbind() Niklas Cassel
2024-03-12 10:51 ` [PATCH v2 7/9] PCI: cadence: Set a 64-bit BAR if requested Niklas Cassel
2024-05-16 20:49   ` Bjorn Helgaas
2024-05-21 12:01     ` Niklas Cassel
2024-03-12 10:51 ` [PATCH v2 8/9] PCI: rockchip-ep: " Niklas Cassel
2024-03-12 10:51   ` Niklas Cassel
2024-03-12 10:51   ` Niklas Cassel
2024-03-12 10:51 ` [PATCH v2 9/9] PCI: endpoint: Set prefetch when allocating memory for 64-bit BARs Niklas Cassel

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