* Re: [PATCH] net: mctp: Add MCTP PCIe VDM transport driver
[not found] <20250714062544.2612693-1-yh_chung@aspeedtech.com>
@ 2025-07-15 2:26 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2025-07-15 2:26 UTC (permalink / raw)
To: aspeedyh, jk, matt, andrew+netdev, davem, edumazet, kuba, pabeni,
linux-kernel, netdev, bmc-sw
Cc: llvm, oe-kbuild-all
Hi aspeedyh,
kernel test robot noticed the following build warnings:
[auto build test WARNING on net-next/main]
[also build test WARNING on net/main linus/master v6.16-rc6 next-20250714]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/aspeedyh/net-mctp-Add-MCTP-PCIe-VDM-transport-driver/20250714-142656
base: net-next/main
patch link: https://lore.kernel.org/r/20250714062544.2612693-1-yh_chung%40aspeedtech.com
patch subject: [PATCH] net: mctp: Add MCTP PCIe VDM transport driver
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20250715/202507151015.GPkeA21H-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250715/202507151015.GPkeA21H-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507151015.GPkeA21H-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/net/mctp/mctp-pcie-vdm.c:491:4: warning: variable 'vdm_dev' is uninitialized when used here [-Wuninitialized]
491 | vdm_dev->ndev->name);
| ^~~~~~~
include/linux/printk.h:631:26: note: expanded from macro 'pr_debug'
631 | dynamic_pr_debug(fmt, ##__VA_ARGS__)
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:270:22: note: expanded from macro 'dynamic_pr_debug'
270 | pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:250:59: note: expanded from macro '_dynamic_func_call'
250 | _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__)
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:248:65: note: expanded from macro '_dynamic_func_call_cls'
248 | __dynamic_func_call_cls(__UNIQUE_ID(ddebug), cls, fmt, func, ##__VA_ARGS__)
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:224:15: note: expanded from macro '__dynamic_func_call_cls'
224 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
drivers/net/mctp/mctp-pcie-vdm.c:484:35: note: initialize the variable 'vdm_dev' to silence this warning
484 | struct mctp_pcie_vdm_dev *vdm_dev;
| ^
| = NULL
1 warning generated.
vim +/vdm_dev +491 drivers/net/mctp/mctp-pcie-vdm.c
481
482 static void mctp_pcie_vdm_uninit(struct net_device *ndev)
483 {
484 struct mctp_pcie_vdm_dev *vdm_dev;
485
486 struct mctp_pcie_vdm_route_info *route;
487 struct hlist_node *tmp;
488 int bkt;
489
490 pr_debug("%s: uninitializing vdm_dev %s\n", __func__,
> 491 vdm_dev->ndev->name);
492
493 vdm_dev = netdev_priv(ndev);
494 vdm_dev->callback_ops->uninit(vdm_dev->dev);
495
496 hash_for_each_safe(vdm_dev->route_table, bkt, tmp, route, hnode) {
497 hash_del(&route->hnode);
498 kfree(route);
499 }
500
501 if (vdm_dev->tx_thread) {
502 kthread_stop(vdm_dev->tx_thread);
503 vdm_dev->tx_thread = NULL;
504 }
505
506 if (mctp_pcie_vdm_wq) {
507 cancel_work_sync(&vdm_dev->rx_work);
508 flush_workqueue(mctp_pcie_vdm_wq);
509 destroy_workqueue(mctp_pcie_vdm_wq);
510 mctp_pcie_vdm_wq = NULL;
511 }
512
513 while (__ptr_ring_peek(&vdm_dev->tx_queue)) {
514 struct sk_buff *skb;
515
516 skb = ptr_ring_consume(&vdm_dev->tx_queue);
517
518 if (skb)
519 kfree_skb(skb);
520 }
521
522 mutex_lock(&mctp_pcie_vdm_dev_mutex);
523 list_del(&vdm_dev->list);
524 mutex_unlock(&mctp_pcie_vdm_dev_mutex);
525 }
526
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] only message in thread