linux-kernel - [tglx-devel:msi 84/100] kernel/irq/msi.c:782:16: error: 'struct msi_device_data' has no member named 'num

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Date:   Mon, 29 Nov 2021 18:42:33 +0800
From:   kernel test robot <lkp@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [tglx-devel:msi 84/100] kernel/irq/msi.c:782:16: error: 'struct
 msi_device_data' has no member named 'num_descs'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git msi
head:   76af424949030bcbbe874fc272e3cd7e388a6c7f
commit: 17095e2e663ae46ffdfe22111d6cca139d4da515 [84/100] platform-msi: Simplify platform device MSI code
config: x86_64-rhel-8.3-func (https://download.01.org/0day-ci/archive/20211129/202111291855.ARueBRqf-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git/commit/?id=17095e2e663ae46ffdfe22111d6cca139d4da515
        git remote add tglx-devel https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git
        git fetch --no-tags tglx-devel msi
        git checkout 17095e2e663ae46ffdfe22111d6cca139d4da515
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

Note: the tglx-devel/msi HEAD 76af424949030bcbbe874fc272e3cd7e388a6c7f builds fine.
      It only hurts bisectability.

All errors (new ones prefixed by >>):

   kernel/irq/msi.c: In function 'msi_domain_populate_irqs':
>> kernel/irq/msi.c:782:16: error: 'struct msi_device_data' has no member named 'num_descs'
     782 |   dev->msi.data->num_descs++;
         |                ^~


vim +782 kernel/irq/msi.c

   762	
   763	int msi_domain_populate_irqs(struct irq_domain *domain, struct device *dev,
   764				     int virq_base, int nvec, msi_alloc_info_t *arg)
   765	{
   766		struct msi_domain_info *info = domain->host_data;
   767		struct msi_domain_ops *ops = info->ops;
   768		struct msi_desc *desc;
   769		int ret, virq;
   770	
   771		msi_lock_descs(dev);
   772		for (virq = virq_base; virq < virq_base + nvec; virq++) {
   773			desc = alloc_msi_entry(dev, 1, NULL);
   774			if (!desc) {
   775				ret = -ENOMEM;
   776				goto fail;
   777			}
   778	
   779			desc->msi_index = virq;
   780			desc->irq = virq;
   781			list_add_tail(&desc->list, &dev->msi.data->list);
 > 782			dev->msi.data->num_descs++;
   783	
   784			ops->set_desc(arg, desc);
   785			ret = irq_domain_alloc_irqs_hierarchy(domain, virq, 1, arg);
   786			if (ret)
   787				goto fail;
   788	
   789			irq_set_msi_desc(virq, desc);
   790		}
   791		msi_unlock_descs(dev);
   792		return 0;
   793	
   794	fail:
   795		for (--virq; virq >= virq_base; virq--)
   796			irq_domain_free_irqs_common(domain, virq, 1);
   797		msi_free_msi_descs_range(dev, MSI_DESC_ALL, virq_base, nvec);
   798		msi_unlock_descs(dev);
   799		return ret;
   800	}
   801	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org