Re: [PATCH v2 3/3] mctp: Add MCTP-over-KCS transport binding

From: kernel test robot
Date: Mon Oct 02 2023 - 19:05:07 EST


Hi Konstantin,

kernel test robot noticed the following build warnings:

[auto build test WARNING on cminyard-ipmi/for-next]
[also build test WARNING on linus/master v6.6-rc4 next-20230929]
[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/Konstantin-Aladyshev/ipmi-Move-KCS-headers-to-common-include-folder/20231002-223632
base: https://github.com/cminyard/linux-ipmi for-next
patch link: https://lore.kernel.org/r/20231002143441.545-4-aladyshev22%40gmail.com
patch subject: [PATCH v2 3/3] mctp: Add MCTP-over-KCS transport binding
config: sh-allyesconfig (https://download.01.org/0day-ci/archive/20231003/202310030640.tYeSJjeI-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231003/202310030640.tYeSJjeI-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310030640.tYeSJjeI-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

drivers/net/mctp/mctp-kcs.c: In function 'kcs_bmc_mctp_add_device':
>> drivers/net/mctp/mctp-kcs.c:494:31: warning: passing argument 2 of 'dev_err_probe' makes integer from pointer without a cast [-Wint-conversion]
494 | "alloc_netdev failed for KCS channel %d\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| char *
In file included from include/linux/device.h:15,
from include/linux/acpi.h:14,
from include/linux/i2c.h:13,
from drivers/net/mctp/mctp-kcs.c:16:
include/linux/dev_printk.h:277:64: note: expected 'int' but argument is of type 'char *'
277 | __printf(3, 4) int dev_err_probe(const struct device *dev, int err, const char *fmt, ...);
| ~~~~^~~
>> drivers/net/mctp/mctp-kcs.c:495:38: warning: passing argument 3 of 'dev_err_probe' makes pointer from integer without a cast [-Wint-conversion]
495 | kcs_bmc->channel);
| ~~~~~~~^~~~~~~~~
| |
| u32 {aka unsigned int}
include/linux/dev_printk.h:277:81: note: expected 'const char *' but argument is of type 'u32' {aka 'unsigned int'}
277 | __printf(3, 4) int dev_err_probe(const struct device *dev, int err, const char *fmt, ...);
| ~~~~~~~~~~~~^~~
drivers/net/mctp/mctp-kcs.c:507:25: warning: passing argument 2 of 'dev_err_probe' makes integer from pointer without a cast [-Wint-conversion]
507 | "failed to allocate data_in buffer for KCS channel %d\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| char *
include/linux/dev_printk.h:277:64: note: expected 'int' but argument is of type 'char *'
277 | __printf(3, 4) int dev_err_probe(const struct device *dev, int err, const char *fmt, ...);
| ~~~~^~~
drivers/net/mctp/mctp-kcs.c:508:32: warning: passing argument 3 of 'dev_err_probe' makes pointer from integer without a cast [-Wint-conversion]
508 | kcs_bmc->channel);
| ~~~~~~~^~~~~~~~~
| |
| u32 {aka unsigned int}
include/linux/dev_printk.h:277:81: note: expected 'const char *' but argument is of type 'u32' {aka 'unsigned int'}
277 | __printf(3, 4) int dev_err_probe(const struct device *dev, int err, const char *fmt, ...);
| ~~~~~~~~~~~~^~~
drivers/net/mctp/mctp-kcs.c:516:25: warning: passing argument 2 of 'dev_err_probe' makes integer from pointer without a cast [-Wint-conversion]
516 | "failed to allocate data_out buffer for KCS channel %d\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| char *
include/linux/dev_printk.h:277:64: note: expected 'int' but argument is of type 'char *'
277 | __printf(3, 4) int dev_err_probe(const struct device *dev, int err, const char *fmt, ...);
| ~~~~^~~
drivers/net/mctp/mctp-kcs.c:517:32: warning: passing argument 3 of 'dev_err_probe' makes pointer from integer without a cast [-Wint-conversion]
517 | kcs_bmc->channel);
| ~~~~~~~^~~~~~~~~
| |
| u32 {aka unsigned int}
include/linux/dev_printk.h:277:81: note: expected 'const char *' but argument is of type 'u32' {aka 'unsigned int'}
277 | __printf(3, 4) int dev_err_probe(const struct device *dev, int err, const char *fmt, ...);
| ~~~~~~~~~~~~^~~


vim +/dev_err_probe +494 drivers/net/mctp/mctp-kcs.c

481
482 static int kcs_bmc_mctp_add_device(struct kcs_bmc_device *kcs_bmc)
483 {
484 struct mctp_kcs *mkcs;
485 struct net_device *ndev;
486 char name[32];
487 int rc;
488
489 snprintf(name, sizeof(name), "mctpkcs%d", kcs_bmc->channel);
490
491 ndev = alloc_netdev(sizeof(*mkcs), name, NET_NAME_ENUM, mctp_kcs_setup);
492 if (!ndev) {
493 dev_err_probe(kcs_bmc->dev,
> 494 "alloc_netdev failed for KCS channel %d\n",
> 495 kcs_bmc->channel);
496 return -ENOMEM;
497 }
498
499 mkcs = netdev_priv(ndev);
500 mkcs->netdev = ndev;
501 mkcs->client.dev = kcs_bmc;
502 mkcs->client.ops = &kcs_bmc_mctp_client_ops;
503 mkcs->data_in = devm_kmalloc(kcs_bmc->dev, KCS_MSG_BUFSIZ, GFP_KERNEL);
504 if (!mkcs->data_in) {
505 dev_err_probe(
506 kcs_bmc->dev,
507 "failed to allocate data_in buffer for KCS channel %d\n",
508 kcs_bmc->channel);
509 rc = -ENOMEM;
510 goto free_netdev;
511 }
512 mkcs->data_out = devm_kmalloc(kcs_bmc->dev, KCS_MSG_BUFSIZ, GFP_KERNEL);
513 if (!mkcs->data_out) {
514 dev_err_probe(
515 kcs_bmc->dev,
516 "failed to allocate data_out buffer for KCS channel %d\n",
517 kcs_bmc->channel);
518 rc = -ENOMEM;
519 goto free_netdev;
520 }
521
522 INIT_WORK(&mkcs->rx_work, mctp_kcs_rx_work);
523
524 rc = register_netdev(ndev);
525 if (rc)
526 goto free_netdev;
527
528 spin_lock_irq(&kcs_bmc_mctp_instances_lock);
529 list_add(&mkcs->entry, &kcs_bmc_mctp_instances);
530 spin_unlock_irq(&kcs_bmc_mctp_instances_lock);
531
532 dev_info(kcs_bmc->dev, "Add MCTP client for the KCS channel %d",
533 kcs_bmc->channel);
534 return 0;
535
536 free_netdev:
537 free_netdev(ndev);
538
539 return rc;
540 }
541

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https://github.com/intel/lkp-tests/wiki