CC: [email protected] TO: Kishon Vijay Abraham I <[email protected]> CC: Sekhar Nori <[email protected]>
tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-linux-5.4.y head: 5fd9bb3f78d32f23d809e9c2a689925c7bd774f9 commit: 46241066755af938ddbf829f86ae15b2eebaa3f5 [2795/9671] PCI: endpoint: Add support to add virtual function in endpoint core :::::: branch date: 14 hours ago :::::: commit date: 8 months ago config: x86_64-randconfig-m001-20200913 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> smatch warnings: drivers/pci/endpoint/pci-epf-core.c:133 pci_epf_add_vepf() warn: inconsistent returns 'epf_pf->lock'. git remote add ti git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git git fetch --no-tags ti ti-linux-5.4.y git checkout 46241066755af938ddbf829f86ae15b2eebaa3f5 vim +133 drivers/pci/endpoint/pci-epf-core.c 5e8cb4033807e39 Kishon Vijay Abraham I 2017-04-10 97 46241066755af93 Kishon Vijay Abraham I 2020-01-23 98 /** 46241066755af93 Kishon Vijay Abraham I 2020-01-23 99 * pci_epf_add_vepf() - associate virtual EP function to physical EP function 46241066755af93 Kishon Vijay Abraham I 2020-01-23 100 * @epf_pf: the physical EP function to which the virtual EP function should be 46241066755af93 Kishon Vijay Abraham I 2020-01-23 101 * associated 46241066755af93 Kishon Vijay Abraham I 2020-01-23 102 * @epf_vf: the virtual EP function to be added 46241066755af93 Kishon Vijay Abraham I 2020-01-23 103 * 46241066755af93 Kishon Vijay Abraham I 2020-01-23 104 * A physical endpoint function can be associated with multiple virtual 46241066755af93 Kishon Vijay Abraham I 2020-01-23 105 * endpoint functions. Invoke pci_epf_add_epf() to add a virtual PCI endpoint 46241066755af93 Kishon Vijay Abraham I 2020-01-23 106 * function to a physical PCI endpoint function. 46241066755af93 Kishon Vijay Abraham I 2020-01-23 107 */ 46241066755af93 Kishon Vijay Abraham I 2020-01-23 108 int pci_epf_add_vepf(struct pci_epf *epf_pf, struct pci_epf *epf_vf) 46241066755af93 Kishon Vijay Abraham I 2020-01-23 109 { 46241066755af93 Kishon Vijay Abraham I 2020-01-23 110 u32 vfunc_no; 46241066755af93 Kishon Vijay Abraham I 2020-01-23 111 46241066755af93 Kishon Vijay Abraham I 2020-01-23 112 if (IS_ERR_OR_NULL(epf_pf) || IS_ERR_OR_NULL(epf_vf)) 46241066755af93 Kishon Vijay Abraham I 2020-01-23 113 return -EINVAL; 46241066755af93 Kishon Vijay Abraham I 2020-01-23 114 46241066755af93 Kishon Vijay Abraham I 2020-01-23 115 if (epf_pf->epc || epf_vf->epc || epf_vf->epf_pf) 46241066755af93 Kishon Vijay Abraham I 2020-01-23 116 return -EBUSY; 46241066755af93 Kishon Vijay Abraham I 2020-01-23 117 46241066755af93 Kishon Vijay Abraham I 2020-01-23 118 mutex_lock(&epf_pf->lock); 46241066755af93 Kishon Vijay Abraham I 2020-01-23 119 vfunc_no = find_first_zero_bit(&epf_pf->vfunction_num_map, 46241066755af93 Kishon Vijay Abraham I 2020-01-23 120 BITS_PER_LONG); 46241066755af93 Kishon Vijay Abraham I 2020-01-23 121 if (vfunc_no >= BITS_PER_LONG) 46241066755af93 Kishon Vijay Abraham I 2020-01-23 122 return -EINVAL; 46241066755af93 Kishon Vijay Abraham I 2020-01-23 123 46241066755af93 Kishon Vijay Abraham I 2020-01-23 124 set_bit(vfunc_no, &epf_pf->vfunction_num_map); 46241066755af93 Kishon Vijay Abraham I 2020-01-23 125 epf_vf->vfunc_no = vfunc_no; 46241066755af93 Kishon Vijay Abraham I 2020-01-23 126 46241066755af93 Kishon Vijay Abraham I 2020-01-23 127 epf_vf->epf_pf = epf_pf; 46241066755af93 Kishon Vijay Abraham I 2020-01-23 128 epf_vf->is_vf = true; 46241066755af93 Kishon Vijay Abraham I 2020-01-23 129 46241066755af93 Kishon Vijay Abraham I 2020-01-23 130 list_add_tail(&epf_vf->list, &epf_pf->pci_vepf); 46241066755af93 Kishon Vijay Abraham I 2020-01-23 131 mutex_unlock(&epf_pf->lock); 46241066755af93 Kishon Vijay Abraham I 2020-01-23 132 46241066755af93 Kishon Vijay Abraham I 2020-01-23 @133 return 0; 46241066755af93 Kishon Vijay Abraham I 2020-01-23 134 } 46241066755af93 Kishon Vijay Abraham I 2020-01-23 135 EXPORT_SYMBOL_GPL(pci_epf_add_vepf); 46241066755af93 Kishon Vijay Abraham I 2020-01-23 136 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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