CC: [email protected] CC: [email protected] CC: [email protected] TO: Kishon Vijay Abraham I <[email protected]> CC: Vignesh Raghavendra <[email protected]>
tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.10.y head: 20573c156d42756b309bf4c8f57b8d65d00b7942 commit: 0cf43e35b1743dc43574089fcf3ff71d8cd2ae39 [1607/9999] PCI: endpoint: Add support to add virtual function in endpoint core :::::: branch date: 2 days ago :::::: commit date: 9 months ago config: x86_64-randconfig-m001-20220105 (https://download.01.org/0day-ci/archive/20220108/[email protected]/config) compiler: gcc-9 (Debian 9.3.0-22) 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:169 pci_epf_add_vepf() warn: inconsistent returns '&epf_pf->lock'. vim +169 drivers/pci/endpoint/pci-epf-core.c 5e8cb4033807e39 Kishon Vijay Abraham I 2017-04-10 130 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 131 /** 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 132 * pci_epf_add_vepf() - associate virtual EP function to physical EP function 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 133 * @epf_pf: the physical EP function to which the virtual EP function should be 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 134 * associated 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 135 * @epf_vf: the virtual EP function to be added 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 136 * 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 137 * A physical endpoint function can be associated with multiple virtual 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 138 * endpoint functions. Invoke pci_epf_add_epf() to add a virtual PCI endpoint 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 139 * function to a physical PCI endpoint function. 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 140 */ 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 141 int pci_epf_add_vepf(struct pci_epf *epf_pf, struct pci_epf *epf_vf) 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 142 { 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 143 u32 vfunc_no; 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 144 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 145 if (IS_ERR_OR_NULL(epf_pf) || IS_ERR_OR_NULL(epf_vf)) 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 146 return -EINVAL; 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 147 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 148 if (epf_pf->epc || epf_vf->epc || epf_vf->epf_pf) 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 149 return -EBUSY; 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 150 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 151 if (epf_pf->sec_epc || epf_vf->sec_epc) 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 152 return -EBUSY; 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 153 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 154 mutex_lock(&epf_pf->lock); 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 155 vfunc_no = find_first_zero_bit(&epf_pf->vfunction_num_map, 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 156 BITS_PER_LONG); 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 157 if (vfunc_no >= BITS_PER_LONG) 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 158 return -EINVAL; 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 159 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 160 set_bit(vfunc_no, &epf_pf->vfunction_num_map); 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 161 epf_vf->vfunc_no = vfunc_no; 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 162 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 163 epf_vf->epf_pf = epf_pf; 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 164 epf_vf->is_vf = true; 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 165 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 166 list_add_tail(&epf_vf->list, &epf_pf->pci_vepf); 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 167 mutex_unlock(&epf_pf->lock); 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 168 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 @169 return 0; 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 170 } 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 171 EXPORT_SYMBOL_GPL(pci_epf_add_vepf); 0cf43e35b1743dc Kishon Vijay Abraham I 2021-03-30 172 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected] _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
