tree: https://github.com/lunn/linux.git v5.8-rc1-net-next-phy-subdirs head: 6758dc32213e56e6ddd16049bc0cf1e1a36ce270 commit: 55b85b0b27e41f822363c40083b44daae8b2e5dd [2/3] net: phy: Move into subdirectories config: i386-randconfig-s002-20200621 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-rc2-13-gc59158c8-dirty git checkout 55b85b0b27e41f822363c40083b44daae8b2e5dd # save the attached .config to linux build tree make W=1 C=1 ARCH=i386 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): In file included from include/linux/phy.h:14, from drivers/net/phy/phy/at803x.c:10: drivers/net/phy/phy/at803x.c: In function 'at803x_parse_dt': include/linux/bitfield.h:52:28: warning: comparison is always false due to limited range of data type [-Wtype-limits] 52 | BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull, | ^ include/linux/compiler.h:372:9: note: in definition of macro '__compiletime_assert' 372 | if (!(condition)) | ^~~~~~~~~ include/linux/compiler.h:392:2: note: in expansion of macro '_compiletime_assert' 392 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:52:3: note: in expansion of macro 'BUILD_BUG_ON_MSG' 52 | BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull, | ^~~~~~~~~~~~~~~~ include/linux/bitfield.h:94:3: note: in expansion of macro '__BF_FIELD_CHECK' 94 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); | ^~~~~~~~~~~~~~~~ 431 | priv->clk_25m_reg |= FIELD_PREP(mask, sel); | ^~~~~~~~~~ sparse warnings: (new ones prefixed by >>) drivers/net/phy/phy/mscc/mscc_macsec.c:606:34: sparse: sparse: cast from restricted sci_t drivers/net/phy/phy/mscc/mscc_macsec.c:608:34: sparse: sparse: restricted sci_t degrades to integer vim +/FIELD_PREP +431 drivers/net/phy/phy/at803x.c 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 398 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 399 static int at803x_parse_dt(struct phy_device *phydev) 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 400 { 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 401 struct device_node *node = phydev->mdio.dev.of_node; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 402 struct at803x_priv *priv = phydev->priv; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 403 unsigned int sel, mask; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 404 u32 freq, strength; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 405 int ret; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 406 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 407 if (!IS_ENABLED(CONFIG_OF_MDIO)) 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 408 return 0; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 409 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 410 ret = of_property_read_u32(node, "qca,clk-out-frequency", &freq); 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 411 if (!ret) { 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 412 mask = AT803X_CLK_OUT_MASK; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 413 switch (freq) { 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 414 case 25000000: 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 415 sel = AT803X_CLK_OUT_25MHZ_XTAL; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 416 break; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 417 case 50000000: 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 418 sel = AT803X_CLK_OUT_50MHZ_PLL; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 419 break; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 420 case 62500000: 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 421 sel = AT803X_CLK_OUT_62_5MHZ_PLL; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 422 break; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 423 case 125000000: 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 424 sel = AT803X_CLK_OUT_125MHZ_PLL; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 425 break; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 426 default: 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 427 phydev_err(phydev, "invalid qca,clk-out-frequency\n"); 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 428 return -EINVAL; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 429 } 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 430 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 @431 priv->clk_25m_reg |= FIELD_PREP(mask, sel); 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 432 priv->clk_25m_mask |= mask; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 433 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 434 /* Fixup for the AR8030/AR8035. This chip has another mask and 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 435 * doesn't support the DSP reference. Eg. the lowest bit of the 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 436 * mask. The upper two bits select the same frequencies. Mask 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 437 * the lowest bit here. 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 438 * 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 439 * Warning: 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 440 * There was no datasheet for the AR8030 available so this is 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 441 * just a guess. But the AR8035 is listed as pin compatible 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 442 * to the AR8030 so there might be a good chance it works on 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 443 * the AR8030 too. 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 444 */ 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 445 if (at803x_match_phy_id(phydev, ATH8030_PHY_ID) || 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 446 at803x_match_phy_id(phydev, ATH8035_PHY_ID)) { b1f4c209d84057b drivers/net/phy/at803x.c Oleksij Rempel 2020-04-01 447 priv->clk_25m_reg &= AT8035_CLK_OUT_MASK; b1f4c209d84057b drivers/net/phy/at803x.c Oleksij Rempel 2020-04-01 448 priv->clk_25m_mask &= AT8035_CLK_OUT_MASK; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 449 } 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 450 } 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 451 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 452 ret = of_property_read_u32(node, "qca,clk-out-strength", &strength); 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 453 if (!ret) { 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 454 priv->clk_25m_mask |= AT803X_CLK_OUT_STRENGTH_MASK; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 455 switch (strength) { 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 456 case AR803X_STRENGTH_FULL: 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 457 priv->clk_25m_reg |= AT803X_CLK_OUT_STRENGTH_FULL; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 458 break; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 459 case AR803X_STRENGTH_HALF: 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 460 priv->clk_25m_reg |= AT803X_CLK_OUT_STRENGTH_HALF; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 461 break; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 462 case AR803X_STRENGTH_QUARTER: 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 463 priv->clk_25m_reg |= AT803X_CLK_OUT_STRENGTH_QUARTER; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 464 break; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 465 default: 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 466 phydev_err(phydev, "invalid qca,clk-out-strength\n"); 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 467 return -EINVAL; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 468 } 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 469 } 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 470 428061f70f1aa3a drivers/net/phy/at803x.c Michael Walle 2019-11-06 471 /* Only supported on AR8031/AR8033, the AR8030/AR8035 use strapping 428061f70f1aa3a drivers/net/phy/at803x.c Michael Walle 2019-11-06 472 * options. 428061f70f1aa3a drivers/net/phy/at803x.c Michael Walle 2019-11-06 473 */ 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 474 if (at803x_match_phy_id(phydev, ATH8031_PHY_ID)) { 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 475 if (of_property_read_bool(node, "qca,keep-pll-enabled")) 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 476 priv->flags |= AT803X_KEEP_PLL_ENABLED; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 477 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 478 ret = at8031_register_regulators(phydev); 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 479 if (ret < 0) 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 480 return ret; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 481 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 482 priv->vddio = devm_regulator_get_optional(&phydev->mdio.dev, 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 483 "vddio"); 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 484 if (IS_ERR(priv->vddio)) { 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 485 phydev_err(phydev, "failed to get VDDIO regulator\n"); 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 486 return PTR_ERR(priv->vddio); 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 487 } 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 488 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 489 ret = regulator_enable(priv->vddio); 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 490 if (ret < 0) 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 491 return ret; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 492 } 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 493 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 494 return 0; 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 495 } 2f664823a47021a drivers/net/phy/at803x.c Michael Walle 2019-11-06 496 :::::: The code at line 431 was first introduced by commit :::::: 2f664823a47021ae029fe91272adbf0a223e477f net: phy: at803x: add device tree binding :::::: TO: Michael Walle <michael(a)walle.cc&gt; :::::: CC: David S. Miller <davem(a)davemloft.net&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org