Hi Claudiu, I love your patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on net-next/master net/master linus/master v5.10-rc7 next-20201208] [cannot apply to sparc-next/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Claudiu-Beznea/net-macb-add-support-for-sama7g5/20201207-201959 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm64-randconfig-r021-20201208 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 1968804ac726e7674d5de22bc2204b45857da344) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/7a9fff9938fe9b459aa67f4afb0e817313d3d54a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Claudiu-Beznea/net-macb-add-support-for-sama7g5/20201207-201959 git checkout 7a9fff9938fe9b459aa67f4afb0e817313d3d54a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/net/ethernet/cadence/macb_main.c:4506:6: warning: variable 'bp' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] if (!dev) { ^~~~ drivers/net/ethernet/cadence/macb_main.c:4641:20: note: uninitialized use occurs here macb_clks_disable(bp->pclk, bp->hclk, bp->tx_clk, bp->rx_clk, bp->tsu_clk); ^~ drivers/net/ethernet/cadence/macb_main.c:4506:2: note: remove the 'if' if its condition is always false if (!dev) { ^~~~~~~~~~~ drivers/net/ethernet/cadence/macb_main.c:4474:17: note: initialize the variable 'bp' to silence this warning struct macb *bp; ^ = NULL 1 warning generated. vim +4506 drivers/net/ethernet/cadence/macb_main.c 83a77e9ec4150e drivers/net/ethernet/cadence/macb.c Bartosz Folta 2016-12-14 4456 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4457 static int macb_probe(struct platform_device *pdev) 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4458 { 83a77e9ec4150e drivers/net/ethernet/cadence/macb.c Bartosz Folta 2016-12-14 4459 const struct macb_config *macb_config = &default_gem_config; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4460 int (*clk_init)(struct platform_device *, struct clk **, f5473d1d44e4b4 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2019-03-01 4461 struct clk **, struct clk **, struct clk **, f5473d1d44e4b4 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2019-03-01 4462 struct clk **) = macb_config->clk_init; 83a77e9ec4150e drivers/net/ethernet/cadence/macb.c Bartosz Folta 2016-12-14 4463 int (*init)(struct platform_device *) = macb_config->init; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4464 struct device_node *np = pdev->dev.of_node; aead88bd0e9905 drivers/net/ethernet/cadence/macb.c shubhrajyoti.datta@xxxxxxxxxx 2016-08-16 4465 struct clk *pclk, *hclk = NULL, *tx_clk = NULL, *rx_clk = NULL; f5473d1d44e4b4 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2019-03-01 4466 struct clk *tsu_clk = NULL; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4467 unsigned int queue_mask, num_queues; f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4468 bool native_io; 0c65b2b90d13c1 drivers/net/ethernet/cadence/macb_main.c Andrew Lunn 2019-11-04 4469 phy_interface_t interface; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4470 struct net_device *dev; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4471 struct resource *regs; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4472 void __iomem *mem; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4473 const char *mac; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4474 struct macb *bp; 404cd086f29e86 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2018-07-06 4475 int err, val; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4476 f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4477 regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4478 mem = devm_ioremap_resource(&pdev->dev, regs); f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4479 if (IS_ERR(mem)) f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4480 return PTR_ERR(mem); f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4481 c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4482 if (np) { c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4483 const struct of_device_id *match; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4484 c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4485 match = of_match_node(macb_dt_ids, np); c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4486 if (match && match->data) { c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4487 macb_config = match->data; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4488 clk_init = macb_config->clk_init; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4489 init = macb_config->init; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4490 } c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4491 } c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4492 f5473d1d44e4b4 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2019-03-01 4493 err = clk_init(pdev, &pclk, &hclk, &tx_clk, &rx_clk, &tsu_clk); c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4494 if (err) c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4495 return err; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4496 d54f89af6cc4d6 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2019-03-01 4497 pm_runtime_set_autosuspend_delay(&pdev->dev, MACB_PM_TIMEOUT); d54f89af6cc4d6 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2019-03-01 4498 pm_runtime_use_autosuspend(&pdev->dev); d54f89af6cc4d6 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2019-03-01 4499 pm_runtime_get_noresume(&pdev->dev); d54f89af6cc4d6 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2019-03-01 4500 pm_runtime_set_active(&pdev->dev); d54f89af6cc4d6 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2019-03-01 4501 pm_runtime_enable(&pdev->dev); f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4502 native_io = hw_is_native_io(mem); 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4503 f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4504 macb_probe_queues(mem, native_io, &queue_mask, &num_queues); 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4505 dev = alloc_etherdev_mq(sizeof(*bp), num_queues); c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 @4506 if (!dev) { c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4507 err = -ENOMEM; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4508 goto err_disable_clocks; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4509 } 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4510 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4511 dev->base_addr = regs->start; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4512 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4513 SET_NETDEV_DEV(dev, &pdev->dev); 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4514 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4515 bp = netdev_priv(dev); 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4516 bp->pdev = pdev; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4517 bp->dev = dev; 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4518 bp->regs = mem; f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4519 bp->native_io = native_io; f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4520 if (native_io) { 7a6e0706c09b12 drivers/net/ethernet/cadence/macb.c David S. Miller 2015-07-27 4521 bp->macb_reg_readl = hw_readl_native; 7a6e0706c09b12 drivers/net/ethernet/cadence/macb.c David S. Miller 2015-07-27 4522 bp->macb_reg_writel = hw_writel_native; f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4523 } else { 7a6e0706c09b12 drivers/net/ethernet/cadence/macb.c David S. Miller 2015-07-27 4524 bp->macb_reg_readl = hw_readl; 7a6e0706c09b12 drivers/net/ethernet/cadence/macb.c David S. Miller 2015-07-27 4525 bp->macb_reg_writel = hw_writel; f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4526 } 421d9df0628be1 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen 2015-03-07 4527 bp->num_queues = num_queues; bfa0914afa95d4 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4528 bp->queue_mask = queue_mask; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4529 if (macb_config) f6970505defd0e drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4530 bp->dma_burst_length = macb_config->dma_burst_length; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4531 bp->pclk = pclk; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4532 bp->hclk = hclk; c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4533 bp->tx_clk = tx_clk; aead88bd0e9905 drivers/net/ethernet/cadence/macb.c shubhrajyoti.datta@xxxxxxxxxx 2016-08-16 4534 bp->rx_clk = rx_clk; f5473d1d44e4b4 drivers/net/ethernet/cadence/macb_main.c Harini Katakam 2019-03-01 4535 bp->tsu_clk = tsu_clk; f36dbe6a285e06 drivers/net/ethernet/cadence/macb.c Andy Shevchenko 2015-07-24 4536 if (macb_config) 98b5a0f4a2282f drivers/net/ethernet/cadence/macb.c Harini Katakam 2015-05-06 4537 bp->jumbo_max_len = macb_config->jumbo_max_len; 98b5a0f4a2282f drivers/net/ethernet/cadence/macb.c Harini Katakam 2015-05-06 4538 3e2a5e15390643 drivers/net/ethernet/cadence/macb.c Sergio Prado 2016-02-09 4539 bp->wol = 0; 7c4a1d0cfdc169 drivers/net/ethernet/cadence/macb.c Sergio Prado 2016-02-16 4540 if (of_get_property(np, "magic-packet", NULL)) 3e2a5e15390643 drivers/net/ethernet/cadence/macb.c Sergio Prado 2016-02-09 4541 bp->wol |= MACB_WOL_HAS_MAGIC_PACKET; ced4799d063759 drivers/net/ethernet/cadence/macb_main.c Nicolas Ferre 2020-07-10 4542 device_set_wakeup_capable(&pdev->dev, bp->wol & MACB_WOL_HAS_MAGIC_PACKET); 3e2a5e15390643 drivers/net/ethernet/cadence/macb.c Sergio Prado 2016-02-09 4543 5c14e373350d7e drivers/net/ethernet/cadence/macb_main.c Claudiu Beznea 2020-12-07 4544 bp->usrio = macb_config->usrio; 5c14e373350d7e drivers/net/ethernet/cadence/macb_main.c Claudiu Beznea 2020-12-07 4545 c69618b3e4f220 drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4546 spin_lock_init(&bp->lock); f6970505defd0e drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4547 ad78347f06581e drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4548 /* setup capabilities */ f6970505defd0e drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4549 macb_configure_caps(bp, macb_config); f6970505defd0e drivers/net/ethernet/cadence/macb.c Nicolas Ferre 2015-03-31 4550 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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.config.gz
Description: application/gzip
