Hi Krzysztof, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing head: 4e52af1ccaa2d979894d4d059037ff9ec4d26a83 commit: 88eaaecc44461f9fb147bf7ee6ccc6d4e9fc23e0 [36/41] usb: host: Enable compile testing for some of drivers reproduce: # apt-get install sparse # sparse version: v0.6.1-129-g341daf20-dirty git checkout 88eaaecc44461f9fb147bf7ee6ccc6d4e9fc23e0 make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/usb/host/ohci-at91.c:449:39: sparse: sparse: invalid assignment: &= >> drivers/usb/host/ohci-at91.c:449:39: sparse: left side has type unsigned int >> drivers/usb/host/ohci-at91.c:449:39: sparse: right side has type restricted __le32 drivers/usb/host/ohci-at91.c:452:39: sparse: sparse: invalid assignment: |= drivers/usb/host/ohci-at91.c:452:39: sparse: left side has type unsigned int drivers/usb/host/ohci-at91.c:452:39: sparse: right side has type restricted __le32 drivers/usb/host/ohci-at91.c:455:39: sparse: sparse: invalid assignment: |= drivers/usb/host/ohci-at91.c:455:39: sparse: left side has type unsigned int drivers/usb/host/ohci-at91.c:455:39: sparse: right side has type restricted __le32 -- >> drivers/usb/host/ohci-s3c2410.c:277:39: sparse: sparse: invalid assignment: |= >> drivers/usb/host/ohci-s3c2410.c:277:39: sparse: left side has type unsigned int >> drivers/usb/host/ohci-s3c2410.c:277:39: sparse: right side has type restricted __le32 drivers/usb/host/ohci-s3c2410.c:280:39: sparse: sparse: invalid assignment: |= drivers/usb/host/ohci-s3c2410.c:280:39: sparse: left side has type unsigned int drivers/usb/host/ohci-s3c2410.c:280:39: sparse: right side has type restricted __le32 -- >> drivers/usb/host/ehci-mv.c:178:23: sparse: sparse: cast removes address space '<asn:2>' of expression >> drivers/usb/host/ehci-mv.c:178:20: sparse: sparse: incorrect type in assignment (different address spaces) >> drivers/usb/host/ehci-mv.c:178:20: sparse: expected struct ehci_caps [noderef] <asn:2> *caps >> drivers/usb/host/ehci-mv.c:178:20: sparse: got struct ehci_caps * vim +449 drivers/usb/host/ohci-at91.c 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 323 aa6e52a35d388e Thomas Petazzoni 2011-07-13 324 /* aa6e52a35d388e Thomas Petazzoni 2011-07-13 325 * Look at the control requests to the root hub and see if we need to override. aa6e52a35d388e Thomas Petazzoni 2011-07-13 326 */ aa6e52a35d388e Thomas Petazzoni 2011-07-13 327 static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, aa6e52a35d388e Thomas Petazzoni 2011-07-13 328 u16 wIndex, char *buf, u16 wLength) aa6e52a35d388e Thomas Petazzoni 2011-07-13 329 { d4f09e28d7bc5c Jingoo Han 2013-07-30 330 struct at91_usbh_data *pdata = dev_get_platdata(hcd->self.controller); 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 331 struct ohci_at91_priv *ohci_at91 = hcd_to_ohci_at91_priv(hcd); aa6e52a35d388e Thomas Petazzoni 2011-07-13 332 struct usb_hub_descriptor *desc; aa6e52a35d388e Thomas Petazzoni 2011-07-13 333 int ret = -EINVAL; aa6e52a35d388e Thomas Petazzoni 2011-07-13 334 u32 *data = (u32 *)buf; aa6e52a35d388e Thomas Petazzoni 2011-07-13 335 aa6e52a35d388e Thomas Petazzoni 2011-07-13 336 dev_dbg(hcd->self.controller, aa6e52a35d388e Thomas Petazzoni 2011-07-13 337 "ohci_at91_hub_control(%p,0x%04x,0x%04x,0x%04x,%p,%04x)\n", aa6e52a35d388e Thomas Petazzoni 2011-07-13 338 hcd, typeReq, wValue, wIndex, buf, wLength); aa6e52a35d388e Thomas Petazzoni 2011-07-13 339 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 340 wIndex--; 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 341 aa6e52a35d388e Thomas Petazzoni 2011-07-13 342 switch (typeReq) { aa6e52a35d388e Thomas Petazzoni 2011-07-13 343 case SetPortFeature: 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 344 switch (wValue) { 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 345 case USB_PORT_FEAT_POWER: aa6e52a35d388e Thomas Petazzoni 2011-07-13 346 dev_dbg(hcd->self.controller, "SetPortFeat: POWER\n"); 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 347 if (valid_port(wIndex)) { 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 348 ohci_at91_usb_set_power(pdata, wIndex, 1); 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 349 ret = 0; 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 350 } 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 351 aa6e52a35d388e Thomas Petazzoni 2011-07-13 352 goto out; 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 353 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 354 case USB_PORT_FEAT_SUSPEND: 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 355 dev_dbg(hcd->self.controller, "SetPortFeat: SUSPEND\n"); 85550f9148a852 Jelle Martijn Kok 2017-02-21 356 if (valid_port(wIndex) && ohci_at91->sfr_regmap) { 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 357 ohci_at91_port_suspend(ohci_at91->sfr_regmap, 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 358 1); 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 359 return 0; 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 360 } 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 361 break; aa6e52a35d388e Thomas Petazzoni 2011-07-13 362 } aa6e52a35d388e Thomas Petazzoni 2011-07-13 363 break; aa6e52a35d388e Thomas Petazzoni 2011-07-13 364 aa6e52a35d388e Thomas Petazzoni 2011-07-13 365 case ClearPortFeature: aa6e52a35d388e Thomas Petazzoni 2011-07-13 366 switch (wValue) { aa6e52a35d388e Thomas Petazzoni 2011-07-13 367 case USB_PORT_FEAT_C_OVER_CURRENT: aa6e52a35d388e Thomas Petazzoni 2011-07-13 368 dev_dbg(hcd->self.controller, aa6e52a35d388e Thomas Petazzoni 2011-07-13 369 "ClearPortFeature: C_OVER_CURRENT\n"); aa6e52a35d388e Thomas Petazzoni 2011-07-13 370 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 371 if (valid_port(wIndex)) { 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 372 pdata->overcurrent_changed[wIndex] = 0; 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 373 pdata->overcurrent_status[wIndex] = 0; aa6e52a35d388e Thomas Petazzoni 2011-07-13 374 } aa6e52a35d388e Thomas Petazzoni 2011-07-13 375 aa6e52a35d388e Thomas Petazzoni 2011-07-13 376 goto out; aa6e52a35d388e Thomas Petazzoni 2011-07-13 377 aa6e52a35d388e Thomas Petazzoni 2011-07-13 378 case USB_PORT_FEAT_OVER_CURRENT: aa6e52a35d388e Thomas Petazzoni 2011-07-13 379 dev_dbg(hcd->self.controller, aa6e52a35d388e Thomas Petazzoni 2011-07-13 380 "ClearPortFeature: OVER_CURRENT\n"); aa6e52a35d388e Thomas Petazzoni 2011-07-13 381 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 382 if (valid_port(wIndex)) 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 383 pdata->overcurrent_status[wIndex] = 0; aa6e52a35d388e Thomas Petazzoni 2011-07-13 384 aa6e52a35d388e Thomas Petazzoni 2011-07-13 385 goto out; aa6e52a35d388e Thomas Petazzoni 2011-07-13 386 aa6e52a35d388e Thomas Petazzoni 2011-07-13 387 case USB_PORT_FEAT_POWER: aa6e52a35d388e Thomas Petazzoni 2011-07-13 388 dev_dbg(hcd->self.controller, aa6e52a35d388e Thomas Petazzoni 2011-07-13 389 "ClearPortFeature: POWER\n"); aa6e52a35d388e Thomas Petazzoni 2011-07-13 390 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 391 if (valid_port(wIndex)) { 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 392 ohci_at91_usb_set_power(pdata, wIndex, 0); aa6e52a35d388e Thomas Petazzoni 2011-07-13 393 return 0; aa6e52a35d388e Thomas Petazzoni 2011-07-13 394 } 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 395 break; 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 396 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 397 case USB_PORT_FEAT_SUSPEND: 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 398 dev_dbg(hcd->self.controller, "ClearPortFeature: SUSPEND\n"); 85550f9148a852 Jelle Martijn Kok 2017-02-21 399 if (valid_port(wIndex) && ohci_at91->sfr_regmap) { 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 400 ohci_at91_port_suspend(ohci_at91->sfr_regmap, 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 401 0); 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 402 return 0; 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 403 } 2e2aa1bc7eff90 Wenyou Yang 2016-08-23 404 break; aa6e52a35d388e Thomas Petazzoni 2011-07-13 405 } aa6e52a35d388e Thomas Petazzoni 2011-07-13 406 break; aa6e52a35d388e Thomas Petazzoni 2011-07-13 407 } aa6e52a35d388e Thomas Petazzoni 2011-07-13 408 42b59eba718a14 Laurent Pinchart 2014-04-16 409 ret = ohci_hub_control(hcd, typeReq, wValue, wIndex + 1, buf, wLength); aa6e52a35d388e Thomas Petazzoni 2011-07-13 410 if (ret) aa6e52a35d388e Thomas Petazzoni 2011-07-13 411 goto out; aa6e52a35d388e Thomas Petazzoni 2011-07-13 412 aa6e52a35d388e Thomas Petazzoni 2011-07-13 413 switch (typeReq) { aa6e52a35d388e Thomas Petazzoni 2011-07-13 414 case GetHubDescriptor: aa6e52a35d388e Thomas Petazzoni 2011-07-13 415 aa6e52a35d388e Thomas Petazzoni 2011-07-13 416 /* update the hub's descriptor */ aa6e52a35d388e Thomas Petazzoni 2011-07-13 417 aa6e52a35d388e Thomas Petazzoni 2011-07-13 418 desc = (struct usb_hub_descriptor *)buf; aa6e52a35d388e Thomas Petazzoni 2011-07-13 419 aa6e52a35d388e Thomas Petazzoni 2011-07-13 420 dev_dbg(hcd->self.controller, "wHubCharacteristics 0x%04x\n", aa6e52a35d388e Thomas Petazzoni 2011-07-13 421 desc->wHubCharacteristics); aa6e52a35d388e Thomas Petazzoni 2011-07-13 422 aa6e52a35d388e Thomas Petazzoni 2011-07-13 423 /* remove the old configurations for power-switching, and aa6e52a35d388e Thomas Petazzoni 2011-07-13 424 * over-current protection, and insert our new configuration aa6e52a35d388e Thomas Petazzoni 2011-07-13 425 */ aa6e52a35d388e Thomas Petazzoni 2011-07-13 426 aa6e52a35d388e Thomas Petazzoni 2011-07-13 427 desc->wHubCharacteristics &= ~cpu_to_le16(HUB_CHAR_LPSM); a9c49bcd0a4fe6 Sergei Shtylyov 2015-01-19 428 desc->wHubCharacteristics |= a9c49bcd0a4fe6 Sergei Shtylyov 2015-01-19 429 cpu_to_le16(HUB_CHAR_INDV_PORT_LPSM); aa6e52a35d388e Thomas Petazzoni 2011-07-13 430 aa6e52a35d388e Thomas Petazzoni 2011-07-13 431 if (pdata->overcurrent_supported) { aa6e52a35d388e Thomas Petazzoni 2011-07-13 432 desc->wHubCharacteristics &= ~cpu_to_le16(HUB_CHAR_OCPM); a9c49bcd0a4fe6 Sergei Shtylyov 2015-01-19 433 desc->wHubCharacteristics |= a9c49bcd0a4fe6 Sergei Shtylyov 2015-01-19 434 cpu_to_le16(HUB_CHAR_INDV_PORT_OCPM); aa6e52a35d388e Thomas Petazzoni 2011-07-13 435 } aa6e52a35d388e Thomas Petazzoni 2011-07-13 436 aa6e52a35d388e Thomas Petazzoni 2011-07-13 437 dev_dbg(hcd->self.controller, "wHubCharacteristics after 0x%04x\n", aa6e52a35d388e Thomas Petazzoni 2011-07-13 438 desc->wHubCharacteristics); aa6e52a35d388e Thomas Petazzoni 2011-07-13 439 aa6e52a35d388e Thomas Petazzoni 2011-07-13 440 return ret; aa6e52a35d388e Thomas Petazzoni 2011-07-13 441 aa6e52a35d388e Thomas Petazzoni 2011-07-13 442 case GetPortStatus: aa6e52a35d388e Thomas Petazzoni 2011-07-13 443 /* check port status */ aa6e52a35d388e Thomas Petazzoni 2011-07-13 444 aa6e52a35d388e Thomas Petazzoni 2011-07-13 445 dev_dbg(hcd->self.controller, "GetPortStatus(%d)\n", wIndex); aa6e52a35d388e Thomas Petazzoni 2011-07-13 446 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 447 if (valid_port(wIndex)) { 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 448 if (!ohci_at91_usb_get_power(pdata, wIndex)) aa6e52a35d388e Thomas Petazzoni 2011-07-13 @449 *data &= ~cpu_to_le32(RH_PS_PPS); aa6e52a35d388e Thomas Petazzoni 2011-07-13 450 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 451 if (pdata->overcurrent_changed[wIndex]) aa6e52a35d388e Thomas Petazzoni 2011-07-13 452 *data |= cpu_to_le32(RH_PS_OCIC); aa6e52a35d388e Thomas Petazzoni 2011-07-13 453 0ee6d1eeef7bf4 Nicolas Ferre 2012-03-21 454 if (pdata->overcurrent_status[wIndex]) aa6e52a35d388e Thomas Petazzoni 2011-07-13 455 *data |= cpu_to_le32(RH_PS_POCI); aa6e52a35d388e Thomas Petazzoni 2011-07-13 456 } aa6e52a35d388e Thomas Petazzoni 2011-07-13 457 } aa6e52a35d388e Thomas Petazzoni 2011-07-13 458 aa6e52a35d388e Thomas Petazzoni 2011-07-13 459 out: aa6e52a35d388e Thomas Petazzoni 2011-07-13 460 return ret; aa6e52a35d388e Thomas Petazzoni 2011-07-13 461 } aa6e52a35d388e Thomas Petazzoni 2011-07-13 462 :::::: The code at line 449 was first introduced by commit :::::: aa6e52a35d388e730f4df0ec2ec48294590cc459 at91: at91-ohci: support overcurrent notification :::::: TO: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx> :::::: CC: Arnd Bergmann <arnd@xxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
