Hi Colin, [auto build test ERROR on linuxtv-media/master] [also build test ERROR on v4.13-rc1 next-20170721] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Colin-King/dvb_frontend-initialize-variable-s-with-FE_NONE-instead-of-0/20170724-063439 base: git://linuxtv.org/media_tree.git master config: i386-randconfig-x019-201730 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): drivers/media/dvb-core/dvb_frontend.c: In function 'dvb_frontend_swzigzag': >> drivers/media/dvb-core/dvb_frontend.c:463:21: error: 'FE_NONE' undeclared (first use in this function) enum fe_status s = FE_NONE; ^~~~~~~ drivers/media/dvb-core/dvb_frontend.c:463:21: note: each undeclared identifier is reported only once for each function it appears in vim +/FE_NONE +463 drivers/media/dvb-core/dvb_frontend.c 460 461 static void dvb_frontend_swzigzag(struct dvb_frontend *fe) 462 { > 463 enum fe_status s = FE_NONE; 464 int retval = 0; 465 struct dvb_frontend_private *fepriv = fe->frontend_priv; 466 struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; 467 468 /* if we've got no parameters, just keep idling */ 469 if (fepriv->state & FESTATE_IDLE) { 470 fepriv->delay = 3*HZ; 471 fepriv->quality = 0; 472 return; 473 } 474 475 /* in SCAN mode, we just set the frontend when asked and leave it alone */ 476 if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { 477 if (fepriv->state & FESTATE_RETUNE) { 478 tmp = *c; 479 if (fe->ops.set_frontend) 480 retval = fe->ops.set_frontend(fe); 481 *c = tmp; 482 if (retval < 0) 483 fepriv->state = FESTATE_ERROR; 484 else 485 fepriv->state = FESTATE_TUNED; 486 } 487 fepriv->delay = 3*HZ; 488 fepriv->quality = 0; 489 return; 490 } 491 492 /* get the frontend status */ 493 if (fepriv->state & FESTATE_RETUNE) { 494 s = 0; 495 } else { 496 if (fe->ops.read_status) 497 fe->ops.read_status(fe, &s); 498 if (s != fepriv->status) { 499 dvb_frontend_add_event(fe, s); 500 fepriv->status = s; 501 } 502 } 503 504 /* if we're not tuned, and we have a lock, move to the TUNED state */ 505 if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { 506 dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); 507 fepriv->state = FESTATE_TUNED; 508 509 /* if we're tuned, then we have determined the correct inversion */ 510 if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && 511 (c->inversion == INVERSION_AUTO)) { 512 c->inversion = fepriv->inversion; 513 } 514 return; 515 } 516 517 /* if we are tuned already, check we're still locked */ 518 if (fepriv->state & FESTATE_TUNED) { 519 dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); 520 521 /* we're tuned, and the lock is still good... */ 522 if (s & FE_HAS_LOCK) { 523 return; 524 } else { /* if we _WERE_ tuned, but now don't have a lock */ 525 fepriv->state = FESTATE_ZIGZAG_FAST; 526 fepriv->started_auto_step = fepriv->auto_step; 527 fepriv->check_wrapped = 0; 528 } 529 } 530 531 /* don't actually do anything if we're in the LOSTLOCK state, 532 * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ 533 if ((fepriv->state & FESTATE_LOSTLOCK) && 534 (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { 535 dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); 536 return; 537 } 538 539 /* don't do anything if we're in the DISEQC state, since this 540 * might be someone with a motorized dish controlled by DISEQC. 541 * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ 542 if (fepriv->state & FESTATE_DISEQC) { 543 dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); 544 return; 545 } 546 547 /* if we're in the RETUNE state, set everything up for a brand 548 * new scan, keeping the current inversion setting, as the next 549 * tune is _very_ likely to require the same */ 550 if (fepriv->state & FESTATE_RETUNE) { 551 fepriv->lnb_drift = 0; 552 fepriv->auto_step = 0; 553 fepriv->auto_sub_step = 0; 554 fepriv->started_auto_step = 0; 555 fepriv->check_wrapped = 0; 556 } 557 558 /* fast zigzag. */ 559 if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { 560 fepriv->delay = fepriv->min_delay; 561 562 /* perform a tune */ 563 retval = dvb_frontend_swzigzag_autotune(fe, 564 fepriv->check_wrapped); 565 if (retval < 0) { 566 return; 567 } else if (retval) { 568 /* OK, if we've run out of trials at the fast speed. 569 * Drop back to slow for the _next_ attempt */ 570 fepriv->state = FESTATE_SEARCHING_SLOW; 571 fepriv->started_auto_step = fepriv->auto_step; 572 return; 573 } 574 fepriv->check_wrapped = 1; 575 576 /* if we've just retuned, enter the ZIGZAG_FAST state. 577 * This ensures we cannot return from an 578 * FE_SET_FRONTEND ioctl before the first frontend tune 579 * occurs */ 580 if (fepriv->state & FESTATE_RETUNE) { 581 fepriv->state = FESTATE_TUNING_FAST; 582 } 583 } 584 585 /* slow zigzag */ 586 if (fepriv->state & FESTATE_SEARCHING_SLOW) { 587 dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); 588 589 /* Note: don't bother checking for wrapping; we stay in this 590 * state until we get a lock */ 591 dvb_frontend_swzigzag_autotune(fe, 0); 592 } 593 } 594 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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