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Message-ID: <CACSj6VXZ5V7akgibJcZYxqUy3zFKWA_N_5ua7gzXoEHWRBkkkg@mail.gmail.com>
Date: Tue, 3 Oct 2023 16:21:32 +0300
From: Konstantin Aladyshev <aladyshev22@...il.com>
To: kernel test robot <lkp@...el.com>
Cc: oe-kbuild-all@...ts.linux.dev, minyard@....org, joel@....id.au,
andrew@...id.au, avifishman70@...il.com, tmaimon77@...il.com,
tali.perry1@...il.com, venture@...gle.com, yuenn@...gle.com,
benjaminfair@...gle.com, jk@...econstruct.com.au,
matt@...econstruct.com.au, davem@...emloft.net,
edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
openipmi-developer@...ts.sourceforge.net,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-aspeed@...ts.ozlabs.org, openbmc@...ts.ozlabs.org,
netdev@...r.kernel.org
Subject: Re: [PATCH v2 3/3] mctp: Add MCTP-over-KCS transport binding
Oops, sorry about that.
I've introduced this new warning when I've refactored my code to use
'dev_err_probe'.
I've sent the v3 series to correct the issue, I hope now everything is clear.
I haven't figured out how to run clang in my yocto environment where I
develop code, but the
```
make W=1 C=1 drivers/net/mctp/mctp-kcs.o
```
runs without any issues now.
Best regards,
Konstantin Aladyshev
On Tue, Oct 3, 2023 at 2:05 AM kernel test robot <lkp@...el.com> wrote:
>
> 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@intel.com/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@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@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202310030640.tYeSJjeI-lkp@intel.com/
>
> 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
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
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