linux-kernel - kernel/irq/msi.c:535:60: error: 'struct <anonymous>' has no member named 'maskbit'

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Message-ID: <202110290413.M5p2OqT6-lkp@intel.com>
Date:   Fri, 29 Oct 2021 04:37:23 +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,
        0day robot <lkp@...el.com>
Subject: kernel/irq/msi.c:535:60: error: 'struct <anonymous>' has no member
 named 'maskbit'

tree:   https://github.com/0day-ci/linux/commits/UPDATE-20211027-175235/Josef-Johansson/PCI-MSI-Re-add-checks-for-skip-masking-MSI-X-on-Xen-PV/20211018-142252
head:   91a896f30df2d4dcadb4e7cad7f098e887e3ad5f
commit: 91a896f30df2d4dcadb4e7cad7f098e887e3ad5f PCI/MSI: Move non-mask check back into low level accessors
date:   35 hours ago
config: ia64-defconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 11.2.0
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
        # https://github.com/0day-ci/linux/commit/91a896f30df2d4dcadb4e7cad7f098e887e3ad5f
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review UPDATE-20211027-175235/Josef-Johansson/PCI-MSI-Re-add-checks-for-skip-masking-MSI-X-on-Xen-PV/20211018-142252
        git checkout 91a896f30df2d4dcadb4e7cad7f098e887e3ad5f
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=ia64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   kernel/irq/msi.c: In function 'msi_check_reservation_mode':
>> kernel/irq/msi.c:535:60: error: 'struct <anonymous>' has no member named 'maskbit'
     535 |         return desc->msi_attrib.is_msix || desc->msi_attrib.maskbit;
         |                                                            ^
   kernel/irq/msi.c:536:1: error: control reaches end of non-void function [-Werror=return-type]
     536 | }
         | ^
   cc1: some warnings being treated as errors


vim +535 kernel/irq/msi.c

2145ac9310b60c Marc Zyngier    2015-11-23  498  
bc976233a872c0 Thomas Gleixner 2017-12-29  499  /*
bc976233a872c0 Thomas Gleixner 2017-12-29  500   * Carefully check whether the device can use reservation mode. If
bc976233a872c0 Thomas Gleixner 2017-12-29  501   * reservation mode is enabled then the early activation will assign a
bc976233a872c0 Thomas Gleixner 2017-12-29  502   * dummy vector to the device. If the PCI/MSI device does not support
bc976233a872c0 Thomas Gleixner 2017-12-29  503   * masking of the entry then this can result in spurious interrupts when
bc976233a872c0 Thomas Gleixner 2017-12-29  504   * the device driver is not absolutely careful. But even then a malfunction
bc976233a872c0 Thomas Gleixner 2017-12-29  505   * of the hardware could result in a spurious interrupt on the dummy vector
bc976233a872c0 Thomas Gleixner 2017-12-29  506   * and render the device unusable. If the entry can be masked then the core
bc976233a872c0 Thomas Gleixner 2017-12-29  507   * logic will prevent the spurious interrupt and reservation mode can be
bc976233a872c0 Thomas Gleixner 2017-12-29  508   * used. For now reservation mode is restricted to PCI/MSI.
bc976233a872c0 Thomas Gleixner 2017-12-29  509   */
bc976233a872c0 Thomas Gleixner 2017-12-29  510  static bool msi_check_reservation_mode(struct irq_domain *domain,
bc976233a872c0 Thomas Gleixner 2017-12-29  511  				       struct msi_domain_info *info,
bc976233a872c0 Thomas Gleixner 2017-12-29  512  				       struct device *dev)
da5dd9e854d2ed Thomas Gleixner 2017-12-29  513  {
bc976233a872c0 Thomas Gleixner 2017-12-29  514  	struct msi_desc *desc;
bc976233a872c0 Thomas Gleixner 2017-12-29  515  
c6c9e2838c5f0b Thomas Gleixner 2020-08-26  516  	switch(domain->bus_token) {
c6c9e2838c5f0b Thomas Gleixner 2020-08-26  517  	case DOMAIN_BUS_PCI_MSI:
c6c9e2838c5f0b Thomas Gleixner 2020-08-26  518  	case DOMAIN_BUS_VMD_MSI:
c6c9e2838c5f0b Thomas Gleixner 2020-08-26  519  		break;
c6c9e2838c5f0b Thomas Gleixner 2020-08-26  520  	default:
bc976233a872c0 Thomas Gleixner 2017-12-29  521  		return false;
c6c9e2838c5f0b Thomas Gleixner 2020-08-26  522  	}
bc976233a872c0 Thomas Gleixner 2017-12-29  523  
da5dd9e854d2ed Thomas Gleixner 2017-12-29  524  	if (!(info->flags & MSI_FLAG_MUST_REACTIVATE))
da5dd9e854d2ed Thomas Gleixner 2017-12-29  525  		return false;
bc976233a872c0 Thomas Gleixner 2017-12-29  526  
bc976233a872c0 Thomas Gleixner 2017-12-29  527  	if (IS_ENABLED(CONFIG_PCI_MSI) && pci_msi_ignore_mask)
bc976233a872c0 Thomas Gleixner 2017-12-29  528  		return false;
bc976233a872c0 Thomas Gleixner 2017-12-29  529  
bc976233a872c0 Thomas Gleixner 2017-12-29  530  	/*
bc976233a872c0 Thomas Gleixner 2017-12-29  531  	 * Checking the first MSI descriptor is sufficient. MSIX supports
bc976233a872c0 Thomas Gleixner 2017-12-29  532  	 * masking and MSI does so when the maskbit is set.
bc976233a872c0 Thomas Gleixner 2017-12-29  533  	 */
bc976233a872c0 Thomas Gleixner 2017-12-29  534  	desc = first_msi_entry(dev);
bc976233a872c0 Thomas Gleixner 2017-12-29 @535  	return desc->msi_attrib.is_msix || desc->msi_attrib.maskbit;
da5dd9e854d2ed Thomas Gleixner 2017-12-29  536  }
da5dd9e854d2ed Thomas Gleixner 2017-12-29  537  

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