Hi Kris, First bad commit (maybe != root cause): tree: https://github.com/intel/linux-intel-lts.git 4.19/android_r head: 9f2d2ee2b02288b762796b8d0d95a1d6bf805cab commit: b652a52d36a85d1b731921ba08e701d7150ce200 [19120/24638] Merge branch 'aosp/android-4.19-stable' into android_r config: alpha-randconfig-s031-20210910 (attached as .config) compiler: alpha-linux-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/intel/linux-intel-lts/commit/b652a52d36a85d1b731921ba0... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 4.19/android_r git checkout b652a52d36a85d1b731921ba08e701d7150ce200 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/staging/igb_avb/igb_main.c:4213:31: sparse: sparse: undefined identifier 'txring_txq' drivers/staging/igb_avb/igb_main.c:7368:35: sparse: sparse: undefined identifier 'txring_txq' drivers/staging/igb_avb/igb_main.c:306:27: sparse: expected restricted __poll_t ( *poll )( ... ) drivers/staging/igb_avb/igb_main.c:306:27: sparse: got unsigned int ( * )( ... ) drivers/staging/igb_avb/igb_main.c:503:22: sparse: expected unsigned short [usertype] port drivers/staging/igb_avb/igb_main.c:503:22: sparse: got restricted __be16 [usertype] drivers/staging/igb_avb/igb_main.c:5562:30: sparse: sparse: undefined identifier 'txring_txq' drivers/staging/igb_avb/igb_main.c:6131:22: sparse: sparse: using member 'type' in incomplete struct ptp_clock_event drivers/staging/igb_avb/igb_main.c:6131:30: sparse: sparse: undefined identifier 'PTP_CLOCK_PPS' drivers/staging/igb_avb/igb_main.c:6132:28: sparse: sparse: no member 'ptp_caps' in struct igb_adapter drivers/staging/igb_avb/igb_main.c:6133:25: sparse: sparse: undefined identifier 'ptp_clock_event' drivers/staging/igb_avb/igb_main.c:6141:39: sparse: sparse: no member 'ptp_tx_work' in struct igb_adapter drivers/staging/igb_avb/igb_main.c:6146:35: sparse: sparse: no member 'tmreg_lock' in struct igb_adapter drivers/staging/igb_avb/igb_main.c:6147:44: sparse: sparse: no member 'perout' in struct igb_adapter drivers/staging/igb_avb/igb_main.c:6155:24: sparse: sparse: no member 'perout' in struct igb_adapter drivers/staging/igb_avb/igb_main.c:6156:37: sparse: sparse: no member 'tmreg_lock' in struct igb_adapter drivers/staging/igb_avb/igb_main.c:6161:35: sparse: sparse: no member 'tmreg_lock' in struct igb_adapter drivers/staging/igb_avb/igb_main.c:6162:44: sparse: sparse: no member 'perout' in struct igb_adapter drivers/staging/igb_avb/igb_main.c:6169:24: sparse: sparse: no member 'perout' in struct igb_adapter drivers/staging/igb_avb/igb_main.c:6170:37: sparse: sparse: no member 'tmreg_lock' in struct igb_adapter drivers/staging/igb_avb/igb_main.c:6177:22: sparse: sparse: using member 'type' in incomplete struct ptp_clock_event drivers/staging/igb_avb/igb_main.c:6177:30: sparse: sparse: undefined identifier 'PTP_CLOCK_EXTTS' drivers/staging/igb_avb/igb_main.c:6178:22: sparse: sparse: using member 'index' in incomplete struct ptp_clock_event drivers/staging/igb_avb/igb_main.c:6179:22: sparse: sparse: using member 'timestamp' in incomplete struct ptp_clock_event drivers/staging/igb_avb/igb_main.c:6180:17: sparse: sparse: undefined identifier 'ptp_clock_event' drivers/staging/igb_avb/igb_main.c:6187:22: sparse: sparse: using member 'type' in incomplete struct ptp_clock_event drivers/staging/igb_avb/igb_main.c:6187:30: sparse: sparse: undefined identifier 'PTP_CLOCK_EXTTS' drivers/staging/igb_avb/igb_main.c:6188:22: sparse: sparse: using member 'index' in incomplete struct ptp_clock_event drivers/staging/igb_avb/igb_main.c:6189:22: sparse: sparse: using member 'timestamp' in incomplete struct ptp_clock_event drivers/staging/igb_avb/igb_main.c:6190:17: sparse: sparse: undefined identifier 'ptp_clock_event' drivers/staging/igb_avb/igb_main.c:7871:35: sparse: expected restricted __be16 [usertype] tot_len drivers/staging/igb_avb/igb_main.c:7871:35: sparse: got int drivers/staging/igb_avb/igb_main.c:8238:31: sparse: sparse: cast to restricted __be16 drivers/staging/igb_avb/igb_main.c:8238:31: sparse: sparse: cast to restricted __be16 drivers/staging/igb_avb/igb_main.c:8238:31: sparse: sparse: cast to restricted __be16 drivers/staging/igb_avb/igb_main.c:8238:31: sparse: sparse: cast to restricted __be16 drivers/staging/igb_avb/igb_main.c: note: in included file (through include/linux/bitops.h, include/linux/kernel.h, include/linux/list.h, ...): arch/alpha/include/asm/bitops.h:380:13: sparse: sparse: undefined identifier '__builtin_alpha_cmpbge' arch/alpha/include/asm/bitops.h:382:13: sparse: sparse: undefined identifier '__builtin_alpha_extbl' drivers/staging/igb_avb/igb_main.c: note: in included file (through include/uapi/linux/swab.h, include/linux/swab.h, include/uapi/linux/byteorder/little_endian.h, ...): arch/alpha/include/uapi/asm/swab.h:29:14: sparse: sparse: undefined identifier '__builtin_alpha_inslh' arch/alpha/include/uapi/asm/swab.h:30:14: sparse: sparse: undefined identifier '__builtin_alpha_inswl' In file included from include/linux/sctp.h:57, from drivers/staging/igb_avb/igb.h:64, from drivers/staging/igb_avb/igb_main.c:69: include/uapi/linux/sctp.h:390:1: warning: alignment 4 of 'struct sctp_paddr_change' is less than 8 [-Wpacked-not-aligned] 390 | } __attribute__((packed, aligned(4))); | ^ include/uapi/linux/sctp.h:719:1: warning: alignment 4 of 'struct sctp_setpeerprim' is less than 8 [-Wpacked-not-aligned] 719 | } __attribute__((packed, aligned(4))); | ^ include/uapi/linux/sctp.h:718:33: warning: 'sspp_addr' offset 4 in 'struct sctp_setpeerprim' isn't aligned to 8 [-Wpacked-not-aligned] 718 | struct sockaddr_storage sspp_addr; | ^~~~~~~~~ include/uapi/linux/sctp.h:732:1: warning: alignment 4 of 'struct sctp_prim' is less than 8 [-Wpacked-not-aligned] 732 | } __attribute__((packed, aligned(4))); | ^ include/uapi/linux/sctp.h:731:33: warning: 'ssp_addr' offset 4 in 'struct sctp_prim' isn't aligned to 8 [-Wpacked-not-aligned] 731 | struct sockaddr_storage ssp_addr; | ^~~~~~~~ include/uapi/linux/sctp.h:783:1: warning: alignment 4 of 'struct sctp_paddrparams' is less than 8 [-Wpacked-not-aligned] 783 | } __attribute__((packed, aligned(4))); | ^ include/uapi/linux/sctp.h:775:33: warning: 'spp_address' offset 4 in 'struct sctp_paddrparams' isn't aligned to 8 [-Wpacked-not-aligned] 775 | struct sockaddr_storage spp_address; | ^~~~~~~~~~~ include/uapi/linux/sctp.h:896:1: warning: alignment 4 of 'struct sctp_paddrinfo' is less than 8 [-Wpacked-not-aligned] 896 | } __attribute__((packed, aligned(4))); | ^ include/uapi/linux/sctp.h:890:33: warning: 'spinfo_address' offset 4 in 'struct sctp_paddrinfo' isn't aligned to 8 [-Wpacked-not-aligned] 890 | struct sockaddr_storage spinfo_address; | ^~~~~~~~~~~~~~ drivers/staging/igb_avb/igb_main.c: In function 'igb_check_swap_media': drivers/staging/igb_avb/igb_main.c:1648:14: warning: variable 'link' set but not used [-Wunused-but-set-variable] 1648 | bool link; | ^~~~ drivers/staging/igb_avb/igb_main.c: At top level: drivers/staging/igb_avb/igb_main.c:1950:6: warning: no previous prototype for 'igb_enable_mas' [-Wmissing-prototypes] 1950 | void igb_enable_mas(struct igb_adapter *adapter) | ^~~~~~~~~~~~~~ drivers/staging/igb_avb/igb_main.c:2589:6: warning: no previous prototype for 'igb_rar_set' [-Wmissing-prototypes] 2589 | void igb_rar_set(struct igb_adapter *adapter, u32 index) | ^~~~~~~~~~~ drivers/staging/igb_avb/igb_main.c: In function 'igb_clean_tx_ring': drivers/staging/igb_avb/igb_main.c:4213:31: error: implicit declaration of function 'txring_txq' [-Werror=implicit-function-declaration] 4213 | netdev_tx_reset_queue(txring_txq(tx_ring)); | ^~~~~~~~~~ drivers/staging/igb_avb/igb_main.c:4213:31: warning: passing argument 1 of 'netdev_tx_reset_queue' makes pointer from integer without a cast [-Wint-conversion] 4213 | netdev_tx_reset_queue(txring_txq(tx_ring)); | ^~~~~~~~~~~~~~~~~~~ | | | int In file included from drivers/staging/igb_avb/igb_main.c:48: include/linux/netdevice.h:3299:63: note: expected 'struct netdev_queue *' but argument is of type 'int' 3299 | static inline void netdev_tx_reset_queue(struct netdev_queue *q) | ~~~~~~~~~~~~~~~~~~~~~^ drivers/staging/igb_avb/igb_main.c: At top level: drivers/staging/igb_avb/igb_main.c:4445:6: warning: no previous prototype for 'igb_full_sync_mac_table' [-Wmissing-prototypes] 4445 | void igb_full_sync_mac_table(struct igb_adapter *adapter) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/staging/igb_avb/igb_main.c:4454:6: warning: no previous prototype for 'igb_sync_mac_table' [-Wmissing-prototypes] 4454 | void igb_sync_mac_table(struct igb_adapter *adapter) | ^~~~~~~~~~~~~~~~~~ drivers/staging/igb_avb/igb_main.c:5265:6: warning: no previous prototype for 'igb_tx_ctxtdesc' [-Wmissing-prototypes] 5265 | void igb_tx_ctxtdesc(struct igb_ring *tx_ring, u32 vlan_macip_lens, | ^~~~~~~~~~~~~~~ drivers/staging/igb_avb/igb_main.c: In function 'igb_tx_map': drivers/staging/igb_avb/igb_main.c:5562:30: warning: passing argument 1 of 'netdev_tx_sent_queue' makes pointer from integer without a cast [-Wint-conversion] 5562 | netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount); | ^~~~~~~~~~~~~~~~~~~ | | | int In file included from drivers/staging/igb_avb/igb_main.c:48: include/linux/netdevice.h:3221:62: note: expected 'struct netdev_queue *' but argument is of type 'int' 3221 | static inline void netdev_tx_sent_queue(struct netdev_queue *dev_queue, | ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~ drivers/staging/igb_avb/igb_main.c: In function 'igb_tsync_interrupt': drivers/staging/igb_avb/igb_main.c:6126:32: error: storage size of 'event' isn't known 6126 | struct ptp_clock_event event; | ^~~~~ drivers/staging/igb_avb/igb_main.c:6131:30: error: 'PTP_CLOCK_PPS' undeclared (first use in this function) 6131 | event.type = PTP_CLOCK_PPS; | ^~~~~~~~~~~~~ drivers/staging/igb_avb/igb_main.c:6131:30: note: each undeclared identifier is reported only once for each function it appears in drivers/staging/igb_avb/igb_main.c:6132:28: error: 'struct igb_adapter' has no member named 'ptp_caps' 6132 | if (adapter->ptp_caps.pps) | ^~ drivers/staging/igb_avb/igb_main.c:6133:25: error: implicit declaration of function 'ptp_clock_event' [-Werror=implicit-function-declaration] 6133 | ptp_clock_event(adapter->ptp_clock, &event); | ^~~~~~~~~~~~~~~ vim +306 drivers/staging/igb_avb/igb_main.c 34ea8dc24190e2 Vyas, Tarun 2018-09-05 297 34ea8dc24190e2 Vyas, Tarun 2018-09-05 298 static void igb_init_fw(struct igb_adapter *adapter); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 299 static void igb_init_dmac(struct igb_adapter *adapter, u32 pba); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 300 /* user-mode IO API registrations */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 301 static struct file_operations igb_fops = { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 302 .owner = THIS_MODULE, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 303 .llseek = no_llseek, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 304 .read = igb_read, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 305 .write = igb_write, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 @306 .poll = igb_pollfd, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 307 .open = igb_open_file, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 308 .release = igb_close_file, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 309 .mmap = igb_mmap, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 310 .unlocked_ioctl = igb_ioctl_file, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 311 #if defined(CONFIG_IGB_SUPPORT_32BIT_IOCTL) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 312 .compat_ioctl = igb_ioctl_file, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 313 #endif 34ea8dc24190e2 Vyas, Tarun 2018-09-05 314 }; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 315 34ea8dc24190e2 Vyas, Tarun 2018-09-05 316 static struct miscdevice igb_miscdev = { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 317 .minor = MISC_DYNAMIC_MINOR, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 318 .name = "igb_avb", 34ea8dc24190e2 Vyas, Tarun 2018-09-05 319 .fops = &igb_fops, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 320 }; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 321 34ea8dc24190e2 Vyas, Tarun 2018-09-05 322 static struct pci_driver igb_driver = { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 323 .name = igb_driver_name, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 324 .id_table = igb_pci_tbl, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 325 .probe = igb_probe, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 326 .remove = __devexit_p(igb_remove), 34ea8dc24190e2 Vyas, Tarun 2018-09-05 327 #ifdef CONFIG_PM 34ea8dc24190e2 Vyas, Tarun 2018-09-05 328 #ifdef HAVE_SYSTEM_SLEEP_PM_OPS 34ea8dc24190e2 Vyas, Tarun 2018-09-05 329 .driver.pm = &igb_pm_ops, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 330 #else 34ea8dc24190e2 Vyas, Tarun 2018-09-05 331 .suspend = igb_suspend, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 332 .resume = igb_resume, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 333 #endif /* HAVE_SYSTEM_SLEEP_PM_OPS */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 334 #endif /* CONFIG_PM */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 335 #ifndef USE_REBOOT_NOTIFIER 34ea8dc24190e2 Vyas, Tarun 2018-09-05 336 .shutdown = igb_shutdown, 34ea8dc24190e2 Vyas, Tarun 2018-09-05 337 #endif 34ea8dc24190e2 Vyas, Tarun 2018-09-05 338 #ifdef HAVE_PCI_ERS 34ea8dc24190e2 Vyas, Tarun 2018-09-05 339 .err_handler = &igb_err_handler 34ea8dc24190e2 Vyas, Tarun 2018-09-05 340 #endif 34ea8dc24190e2 Vyas, Tarun 2018-09-05 341 }; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 342 34ea8dc24190e2 Vyas, Tarun 2018-09-05 343 /* u32 e1000_read_reg(struct e1000_hw *hw, u32 reg); */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 344 34ea8dc24190e2 Vyas, Tarun 2018-09-05 345 MODULE_AUTHOR("Intel Corporation, <e1000-devel(a)lists.sourceforge.net&gt;&quot;); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 346 MODULE_DESCRIPTION("Intel(R) Gigabit Ethernet Network Driver"); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 347 MODULE_LICENSE("GPL"); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 348 MODULE_VERSION(DRV_VERSION); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 349 34ea8dc24190e2 Vyas, Tarun 2018-09-05 350 static void igb_vfta_set(struct igb_adapter *adapter, u32 vid, bool add) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 351 { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 352 struct e1000_hw *hw = &adapter->hw; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 353 struct e1000_host_mng_dhcp_cookie *mng_cookie = &hw->mng_cookie; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 354 u32 index = (vid >> E1000_VFTA_ENTRY_SHIFT) & E1000_VFTA_ENTRY_MASK; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 355 u32 mask = 1 << (vid & E1000_VFTA_ENTRY_BIT_SHIFT_MASK); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 356 u32 vfta; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 357 34ea8dc24190e2 Vyas, Tarun 2018-09-05 358 /* 34ea8dc24190e2 Vyas, Tarun 2018-09-05 359 * if this is the management vlan the only option is to add it in so 34ea8dc24190e2 Vyas, Tarun 2018-09-05 360 * that the management pass through will continue to work 34ea8dc24190e2 Vyas, Tarun 2018-09-05 361 */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 362 if ((mng_cookie->status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN) && 34ea8dc24190e2 Vyas, Tarun 2018-09-05 363 (vid == mng_cookie->vlan_id)) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 364 add = TRUE; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 365 34ea8dc24190e2 Vyas, Tarun 2018-09-05 366 vfta = adapter->shadow_vfta[index]; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 367 34ea8dc24190e2 Vyas, Tarun 2018-09-05 368 if (add) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 369 vfta |= mask; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 370 else 34ea8dc24190e2 Vyas, Tarun 2018-09-05 371 vfta &= ~mask; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 372 34ea8dc24190e2 Vyas, Tarun 2018-09-05 373 e1000_write_vfta(hw, index, vfta); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 374 adapter->shadow_vfta[index] = vfta; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 375 } 34ea8dc24190e2 Vyas, Tarun 2018-09-05 376 34ea8dc24190e2 Vyas, Tarun 2018-09-05 377 static int debug = NETIF_MSG_DRV | NETIF_MSG_PROBE; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 378 module_param(debug, int, 0); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 379 MODULE_PARM_DESC(debug, "Debug level (0=none, ..., 16=all)"); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 380 34ea8dc24190e2 Vyas, Tarun 2018-09-05 381 34ea8dc24190e2 Vyas, Tarun 2018-09-05 382 static int tx_size = 256; /*default value*/ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 383 module_param(tx_size, int, 0); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 384 MODULE_PARM_DESC(tx_size, "Tx Ring size passed in insmod parameter"); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 385 /** 34ea8dc24190e2 Vyas, Tarun 2018-09-05 386 * igb_init_module - Driver Registration Routine 34ea8dc24190e2 Vyas, Tarun 2018-09-05 387 * 34ea8dc24190e2 Vyas, Tarun 2018-09-05 388 * igb_init_module is the first routine called when the driver is 34ea8dc24190e2 Vyas, Tarun 2018-09-05 389 * loaded. All it does is register with the PCI subsystem. 34ea8dc24190e2 Vyas, Tarun 2018-09-05 390 **/ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 391 static int __init igb_init_module(void) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 392 { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 393 int ret; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 394 34ea8dc24190e2 Vyas, Tarun 2018-09-05 395 pr_info("%s - version %s\n", 34ea8dc24190e2 Vyas, Tarun 2018-09-05 396 igb_driver_string, igb_driver_version); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 397 34ea8dc24190e2 Vyas, Tarun 2018-09-05 398 pr_info("%s\n", igb_copyright); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 399 #ifdef IGB_HWMON 34ea8dc24190e2 Vyas, Tarun 2018-09-05 400 /* only use IGB_PROCFS if IGB_HWMON is not defined */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 401 #else 34ea8dc24190e2 Vyas, Tarun 2018-09-05 402 #ifdef IGB_PROCFS 34ea8dc24190e2 Vyas, Tarun 2018-09-05 403 if (igb_procfs_topdir_init()) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 404 pr_info("Procfs failed to initialize topdir\n"); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 405 #endif /* IGB_PROCFS */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 406 #endif /* IGB_HWMON */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 407 34ea8dc24190e2 Vyas, Tarun 2018-09-05 408 #ifdef IGB_DCA 34ea8dc24190e2 Vyas, Tarun 2018-09-05 409 dca_register_notify(&dca_notifier); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 410 #endif 34ea8dc24190e2 Vyas, Tarun 2018-09-05 411 misc_register(&igb_miscdev); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 412 ret = pci_register_driver(&igb_driver); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 413 #ifdef USE_REBOOT_NOTIFIER 34ea8dc24190e2 Vyas, Tarun 2018-09-05 414 if (ret >= 0) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 415 register_reboot_notifier(&igb_notifier_reboot); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 416 #endif 34ea8dc24190e2 Vyas, Tarun 2018-09-05 417 return ret; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 418 } 34ea8dc24190e2 Vyas, Tarun 2018-09-05 419 34ea8dc24190e2 Vyas, Tarun 2018-09-05 420 module_init(igb_init_module); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 421 34ea8dc24190e2 Vyas, Tarun 2018-09-05 422 /** 34ea8dc24190e2 Vyas, Tarun 2018-09-05 423 * igb_exit_module - Driver Exit Cleanup Routine 34ea8dc24190e2 Vyas, Tarun 2018-09-05 424 * 34ea8dc24190e2 Vyas, Tarun 2018-09-05 425 * igb_exit_module is called just before the driver is removed 34ea8dc24190e2 Vyas, Tarun 2018-09-05 426 * from memory. 34ea8dc24190e2 Vyas, Tarun 2018-09-05 427 **/ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 428 static void __exit igb_exit_module(void) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 429 { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 430 #ifdef IGB_DCA 34ea8dc24190e2 Vyas, Tarun 2018-09-05 431 dca_unregister_notify(&dca_notifier); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 432 #endif 34ea8dc24190e2 Vyas, Tarun 2018-09-05 433 #ifdef USE_REBOOT_NOTIFIER 34ea8dc24190e2 Vyas, Tarun 2018-09-05 434 unregister_reboot_notifier(&igb_notifier_reboot); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 435 #endif 34ea8dc24190e2 Vyas, Tarun 2018-09-05 436 misc_deregister(&igb_miscdev); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 437 pci_unregister_driver(&igb_driver); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 438 34ea8dc24190e2 Vyas, Tarun 2018-09-05 439 #ifdef IGB_HWMON 34ea8dc24190e2 Vyas, Tarun 2018-09-05 440 /* only compile IGB_PROCFS if IGB_HWMON is not defined */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 441 #else 34ea8dc24190e2 Vyas, Tarun 2018-09-05 442 #ifdef IGB_PROCFS 34ea8dc24190e2 Vyas, Tarun 2018-09-05 443 igb_procfs_topdir_exit(); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 444 #endif /* IGB_PROCFS */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 445 #endif /* IGB_HWMON */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 446 } 34ea8dc24190e2 Vyas, Tarun 2018-09-05 447 34ea8dc24190e2 Vyas, Tarun 2018-09-05 448 module_exit(igb_exit_module); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 449 34ea8dc24190e2 Vyas, Tarun 2018-09-05 450 #define Q_IDX_82576(i) (((i & 0x1) << 3) + (i >> 1)) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 451 /** 34ea8dc24190e2 Vyas, Tarun 2018-09-05 452 * igb_cache_ring_register - Descriptor ring to register mapping 34ea8dc24190e2 Vyas, Tarun 2018-09-05 453 * @adapter: board private structure to initialize 34ea8dc24190e2 Vyas, Tarun 2018-09-05 454 * 34ea8dc24190e2 Vyas, Tarun 2018-09-05 455 * Once we know the feature-set enabled for the device, we'll cache 34ea8dc24190e2 Vyas, Tarun 2018-09-05 456 * the register offset the descriptor ring is assigned to. 34ea8dc24190e2 Vyas, Tarun 2018-09-05 457 **/ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 458 static void igb_cache_ring_register(struct igb_adapter *adapter) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 459 { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 460 int i = 0, j = 0; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 461 u32 rbase_offset = adapter->vfs_allocated_count; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 462 34ea8dc24190e2 Vyas, Tarun 2018-09-05 463 for (; i < adapter->num_rx_queues; i++) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 464 adapter->rx_ring[i]->reg_idx = rbase_offset + i; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 465 for (; j < adapter->num_tx_queues; j++) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 466 adapter->tx_ring[j]->reg_idx = rbase_offset + j; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 467 } 34ea8dc24190e2 Vyas, Tarun 2018-09-05 468 34ea8dc24190e2 Vyas, Tarun 2018-09-05 469 u32 e1000_read_reg(struct e1000_hw *hw, u32 reg) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 470 { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 471 struct igb_adapter *igb = container_of(hw, struct igb_adapter, hw); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 472 u8 __iomem *hw_addr = READ_ONCE(hw->hw_addr); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 473 u32 value = 0; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 474 34ea8dc24190e2 Vyas, Tarun 2018-09-05 475 if (E1000_REMOVED(hw_addr)) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 476 return ~value; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 477 34ea8dc24190e2 Vyas, Tarun 2018-09-05 478 value = readl(&hw_addr[reg]); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 479 34ea8dc24190e2 Vyas, Tarun 2018-09-05 480 /* reads should not return all F's */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 481 if (!(~value) && (!reg || !(~readl(hw_addr)))) { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 482 struct net_device *netdev = igb->netdev; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 483 34ea8dc24190e2 Vyas, Tarun 2018-09-05 484 hw->hw_addr = NULL; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 485 netif_device_detach(netdev); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 486 netdev_err(netdev, "PCIe link lost, device now detached\n"); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 487 } 34ea8dc24190e2 Vyas, Tarun 2018-09-05 488 34ea8dc24190e2 Vyas, Tarun 2018-09-05 489 return value; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 490 } 34ea8dc24190e2 Vyas, Tarun 2018-09-05 491 34ea8dc24190e2 Vyas, Tarun 2018-09-05 492 static void igb_configure_lli(struct igb_adapter *adapter) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 493 { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 494 struct e1000_hw *hw = &adapter->hw; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 495 u16 port; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 496 34ea8dc24190e2 Vyas, Tarun 2018-09-05 497 /* LLI should only be enabled for MSI-X or MSI interrupts */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 498 if (!adapter->msix_entries && !(adapter->flags & IGB_FLAG_HAS_MSI)) 34ea8dc24190e2 Vyas, Tarun 2018-09-05 499 return; 34ea8dc24190e2 Vyas, Tarun 2018-09-05 500 34ea8dc24190e2 Vyas, Tarun 2018-09-05 501 if (adapter->lli_port) { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 502 /* use filter 0 for port */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 @503 port = htons((u16)adapter->lli_port); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 504 E1000_WRITE_REG(hw, E1000_IMIR(0), 34ea8dc24190e2 Vyas, Tarun 2018-09-05 505 (port | E1000_IMIR_PORT_IM_EN)); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 506 E1000_WRITE_REG(hw, E1000_IMIREXT(0), 34ea8dc24190e2 Vyas, Tarun 2018-09-05 507 (E1000_IMIREXT_SIZE_BP | E1000_IMIREXT_CTRL_BP)); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 508 } 34ea8dc24190e2 Vyas, Tarun 2018-09-05 509 34ea8dc24190e2 Vyas, Tarun 2018-09-05 510 if (adapter->flags & IGB_FLAG_LLI_PUSH) { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 511 /* use filter 1 for push flag */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 512 E1000_WRITE_REG(hw, E1000_IMIR(1), 34ea8dc24190e2 Vyas, Tarun 2018-09-05 513 (E1000_IMIR_PORT_BP | E1000_IMIR_PORT_IM_EN)); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 514 E1000_WRITE_REG(hw, E1000_IMIREXT(1), 34ea8dc24190e2 Vyas, Tarun 2018-09-05 515 (E1000_IMIREXT_SIZE_BP | E1000_IMIREXT_CTRL_PSH)); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 516 } 34ea8dc24190e2 Vyas, Tarun 2018-09-05 517 34ea8dc24190e2 Vyas, Tarun 2018-09-05 518 if (adapter->lli_size) { 34ea8dc24190e2 Vyas, Tarun 2018-09-05 519 /* use filter 2 for size */ 34ea8dc24190e2 Vyas, Tarun 2018-09-05 520 E1000_WRITE_REG(hw, E1000_IMIR(2), 34ea8dc24190e2 Vyas, Tarun 2018-09-05 521 (E1000_IMIR_PORT_BP | E1000_IMIR_PORT_IM_EN)); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 522 E1000_WRITE_REG(hw, E1000_IMIREXT(2), 34ea8dc24190e2 Vyas, Tarun 2018-09-05 523 (adapter->lli_size | E1000_IMIREXT_CTRL_BP)); 34ea8dc24190e2 Vyas, Tarun 2018-09-05 524 } 34ea8dc24190e2 Vyas, Tarun 2018-09-05 525 :::::: The code at line 306 was first introduced by commit :::::: 34ea8dc24190e2a6708fa89231618fe2e92702c5 staging: Add AVnu based Intel IGB driver :::::: TO: Vyas, Tarun <tarun.vyas(a)intel.com&gt; :::::: CC: Pan, Kris <kris.pan(a)intel.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org