Hi Nam,

kernel test robot noticed the following build errors:

[auto build test ERROR on tip/master]
[also build test ERROR on linus/master v6.16-rc3 next-20250627]
[cannot apply to tip/x86/core tip/auto-latest]
[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/Nam-Cao/x86-hyperv-Switch-to-msi_create_parent_irq_domain/20250626-225420
base:   tip/master
patch link:    
https://lore.kernel.org/r/0eafade05acb51022242635750cd4990f3adb0ac.1750947640.git.namcao%40linutronix.de
patch subject: [PATCH 1/1] x86/hyperv: Switch to msi_create_parent_irq_domain()
config: i386-randconfig-014-20250628 
(https://download.01.org/0day-ci/archive/20250628/[email protected]/config)
compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0
reproduce (this is a W=1 build): 
(https://download.01.org/0day-ci/archive/20250628/[email protected]/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 <[email protected]>
| Closes: 
https://lore.kernel.org/oe-kbuild-all/[email protected]/

All error/warnings (new ones prefixed by >>):

   In file included from drivers/irqchip/irq-msi-lib.c:7:
>> include/linux/irqchip/irq-msi-lib.h:25:39: warning: 'struct msi_domain_info' 
>> declared inside parameter list will not be visible outside of this 
>> definition or declaration
      25 |                                struct msi_domain_info *info);
         |                                       ^~~~~~~~~~~~~~~
>> drivers/irqchip/irq-msi-lib.c:28:39: warning: 'struct msi_domain_info' 
>> declared inside parameter list will not be visible outside of this 
>> definition or declaration
      28 |                                struct msi_domain_info *info)
         |                                       ^~~~~~~~~~~~~~~
>> drivers/irqchip/irq-msi-lib.c:26:6: error: conflicting types for 
>> 'msi_lib_init_dev_msi_info'; have 'bool(struct device *, struct irq_domain 
>> *, struct irq_domain *, struct msi_domain_info *)' {aka '_Bool(struct device 
>> *, struct irq_domain *, struct irq_domain *, struct msi_domain_info *)'}
      26 | bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain 
*domain,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/irqchip/irq-msi-lib.h:23:6: note: previous declaration of 
'msi_lib_init_dev_msi_info' with type 'bool(struct device *, struct irq_domain 
*, struct irq_domain *, struct msi_domain_info *)' {aka '_Bool(struct device *, 
struct irq_domain *, struct irq_domain *, struct msi_domain_info *)'}
      23 | bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain 
*domain,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/irqchip/irq-msi-lib.c: In function 'msi_lib_init_dev_msi_info':
>> drivers/irqchip/irq-msi-lib.c:30:56: error: 'struct irq_domain' has no 
>> member named 'msi_parent_ops'
      30 |         const struct msi_parent_ops *pops = 
real_parent->msi_parent_ops;
         |                                                        ^~
>> drivers/irqchip/irq-msi-lib.c:31:37: error: invalid use of undefined type 
>> 'struct msi_domain_info'
      31 |         struct irq_chip *chip = info->chip;
         |                                     ^~
>> drivers/irqchip/irq-msi-lib.c:43:38: error: invalid use of undefined type 
>> 'const struct msi_parent_ops'
      43 |         if (domain->bus_token == pops->bus_select_token) {
         |                                      ^~
   drivers/irqchip/irq-msi-lib.c:51:30: error: invalid use of undefined type 
'const struct msi_parent_ops'
      51 |         required_flags = pops->required_flags;
         |                              ^~
   drivers/irqchip/irq-msi-lib.c:54:20: error: invalid use of undefined type 
'struct msi_domain_info'
      54 |         switch(info->bus_token) {
         |                    ^~
   In file included from arch/x86/include/asm/bug.h:103,
                    from arch/x86/include/asm/alternative.h:9,
                    from arch/x86/include/asm/barrier.h:5,
                    from include/asm-generic/bitops/generic-non-atomic.h:7,
                    from include/linux/bitops.h:28,
                    from include/linux/of.h:15,
                    from include/linux/irqdomain.h:14,
                    from include/linux/irqchip/irq-msi-lib.h:9:
   drivers/irqchip/irq-msi-lib.c:68:38: error: invalid use of undefined type 
'struct msi_domain_info'
      68 |                 if (WARN_ON_ONCE(info->flags))
         |                                      ^~
   include/asm-generic/bug.h:117:32: note: in definition of macro 'WARN_ON_ONCE'
     117 |         int __ret_warn_on = !!(condition);                      \
         |                                ^~~~~~~~~
   drivers/irqchip/irq-msi-lib.c:72:21: error: invalid use of undefined type 
'struct msi_domain_info'
      72 |                 info->flags = MSI_FLAG_ALLOC_SIMPLE_MSI_DESCS | 
MSI_FLAG_FREE_MSI_DESCS;
         |                     ^~
>> drivers/irqchip/irq-msi-lib.c:72:31: error: 
>> 'MSI_FLAG_ALLOC_SIMPLE_MSI_DESCS' undeclared (first use in this function)
      72 |                 info->flags = MSI_FLAG_ALLOC_SIMPLE_MSI_DESCS | 
MSI_FLAG_FREE_MSI_DESCS;
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/irqchip/irq-msi-lib.c:72:31: note: each undeclared identifier is 
reported only once for each function it appears in
>> drivers/irqchip/irq-msi-lib.c:72:65: error: 'MSI_FLAG_FREE_MSI_DESCS' 
>> undeclared (first use in this function)
      72 |                 info->flags = MSI_FLAG_ALLOC_SIMPLE_MSI_DESCS | 
MSI_FLAG_FREE_MSI_DESCS;
         |                                                                 
^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/irqchip/irq-msi-lib.c:76:36: error: 'MSI_FLAG_PCI_MSI_MASK_PARENT' 
>> undeclared (first use in this function)
      76 |                 required_flags &= ~MSI_FLAG_PCI_MSI_MASK_PARENT;
         |                                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/irqchip/irq-msi-lib.c:91:13: error: invalid use of undefined type 
'struct msi_domain_info'
      91 |         info->flags                     &= pops->supported_flags;
         |             ^~
   drivers/irqchip/irq-msi-lib.c:91:48: error: invalid use of undefined type 
'const struct msi_parent_ops'
      91 |         info->flags                     &= pops->supported_flags;
         |                                                ^~
   drivers/irqchip/irq-msi-lib.c:93:13: error: invalid use of undefined type 
'struct msi_domain_info'
      93 |         info->flags                     |= required_flags;
         |             ^~
   drivers/irqchip/irq-msi-lib.c:96:36: error: invalid use of undefined type 
'const struct msi_parent_ops'
      96 |         if (!chip->irq_eoi && (pops->chip_flags & 
MSI_CHIP_FLAG_SET_EOI))
         |                                    ^~
>> drivers/irqchip/irq-msi-lib.c:96:51: error: 'MSI_CHIP_FLAG_SET_EOI' 
>> undeclared (first use in this function)
      96 |         if (!chip->irq_eoi && (pops->chip_flags & 
MSI_CHIP_FLAG_SET_EOI))
         |                                                   
^~~~~~~~~~~~~~~~~~~~~
   drivers/irqchip/irq-msi-lib.c:98:36: error: invalid use of undefined type 
'const struct msi_parent_ops'
      98 |         if (!chip->irq_ack && (pops->chip_flags & 
MSI_CHIP_FLAG_SET_ACK))
         |                                    ^~
>> drivers/irqchip/irq-msi-lib.c:98:51: error: 'MSI_CHIP_FLAG_SET_ACK' 
>> undeclared (first use in this function)
      98 |         if (!chip->irq_ack && (pops->chip_flags & 
MSI_CHIP_FLAG_SET_ACK))
         |                                                   
^~~~~~~~~~~~~~~~~~~~~
   drivers/irqchip/irq-msi-lib.c:113:46: error: invalid use of undefined type 
'struct msi_domain_info'
     113 |         if (!chip->irq_set_affinity && !(info->flags & 
MSI_FLAG_NO_AFFINITY))
         |                                              ^~
>> drivers/irqchip/irq-msi-lib.c:113:56: error: 'MSI_FLAG_NO_AFFINITY' 
>> undeclared (first use in this function)
     113 |         if (!chip->irq_set_affinity && !(info->flags & 
MSI_FLAG_NO_AFFINITY))
         |                                                        
^~~~~~~~~~~~~~~~~~~~
>> drivers/irqchip/irq-msi-lib.c:114:42: error: 'msi_domain_set_affinity' 
>> undeclared (first use in this function); did you mean 'msi_domain_get_virq'?
     114 |                 chip->irq_set_affinity = msi_domain_set_affinity;
         |                                          ^~~~~~~~~~~~~~~~~~~~~~~
         |                                          msi_domain_get_virq
   In file included from drivers/irqchip/irq-msi-lib.c:5:
   drivers/irqchip/irq-msi-lib.c: At top level:
   drivers/irqchip/irq-msi-lib.c:117:19: error: conflicting types for 
'msi_lib_init_dev_msi_info'; have 'bool(struct device *, struct irq_domain *, 
struct irq_domain *, struct msi_domain_info *)' {aka '_Bool(struct device *, 
struct irq_domain *, struct irq_domain *, struct msi_domain_info *)'}
     117 | EXPORT_SYMBOL_GPL(msi_lib_init_dev_msi_info);
         |                   ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:76:28: note: in definition of macro '__EXPORT_SYMBOL'
      76 |         extern typeof(sym) sym;                                 \
         |                            ^~~
   include/linux/export.h:90:41: note: in expansion of macro '_EXPORT_SYMBOL'
      90 | #define EXPORT_SYMBOL_GPL(sym)          _EXPORT_SYMBOL(sym, "GPL")
         |                                         ^~~~~~~~~~~~~~
   drivers/irqchip/irq-msi-lib.c:117:1: note: in expansion of macro 
'EXPORT_SYMBOL_GPL'
     117 | EXPORT_SYMBOL_GPL(msi_lib_init_dev_msi_info);
         | ^~~~~~~~~~~~~~~~~
   include/linux/irqchip/irq-msi-lib.h:23:6: note: previous declaration of 
'msi_lib_init_dev_msi_info' with type 'bool(struct device *, struct irq_domain 
*, struct irq_domain *, struct msi_domain_info *)' {aka '_Bool(struct device *, 
struct irq_domain *, struct irq_domain *, struct msi_domain_info *)'}
      23 | bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain 
*domain,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/irqchip/irq-msi-lib.c: In function 'msi_lib_irq_domain_select':
   drivers/irqchip/irq-msi-lib.c:134:45: error: 'struct irq_domain' has no 
member named 'msi_parent_ops'
     134 |         const struct msi_parent_ops *ops = d->msi_parent_ops;
         |                                             ^~
   drivers/irqchip/irq-msi-lib.c:144:29: error: invalid use of undefined type 
'const struct msi_parent_ops'
     144 |         if (bus_token == ops->bus_select_token)
         |                             ^~
   drivers/irqchip/irq-msi-lib.c:147:22: error: invalid use of undefined type 
'const struct msi_parent_ops'
     147 |         return !!(ops->bus_select_mask & busmask);
         |                      ^~
>> drivers/irqchip/irq-msi-lib.c:148:1: warning: control reaches end of 
>> non-void function [-Wreturn-type]
     148 | }
         | ^


vim +26 drivers/irqchip/irq-msi-lib.c

72e257c6f05803 Thomas Gleixner   2024-06-23    8  
72e257c6f05803 Thomas Gleixner   2024-06-23    9  /**
72e257c6f05803 Thomas Gleixner   2024-06-23   10   * msi_lib_init_dev_msi_info 
- Domain info setup for MSI domains
72e257c6f05803 Thomas Gleixner   2024-06-23   11   * @dev:              The 
device for which the domain is created for
72e257c6f05803 Thomas Gleixner   2024-06-23   12   * @domain:           The 
domain providing this callback
72e257c6f05803 Thomas Gleixner   2024-06-23   13   * @real_parent:      The 
real parent domain of the domain to be initialized
72e257c6f05803 Thomas Gleixner   2024-06-23   14   *                    which 
might be a domain built on top of @domain or
72e257c6f05803 Thomas Gleixner   2024-06-23   15   *                    @domain 
itself
72e257c6f05803 Thomas Gleixner   2024-06-23   16   * @info:             The 
domain info for the domain to be initialize
72e257c6f05803 Thomas Gleixner   2024-06-23   17   *
72e257c6f05803 Thomas Gleixner   2024-06-23   18   * This function is to be 
used for all types of MSI domains above the root
72e257c6f05803 Thomas Gleixner   2024-06-23   19   * parent domain and any 
intermediates. The topmost parent domain specific
72e257c6f05803 Thomas Gleixner   2024-06-23   20   * functionality is 
determined via @real_parent.
72e257c6f05803 Thomas Gleixner   2024-06-23   21   *
72e257c6f05803 Thomas Gleixner   2024-06-23   22   * All intermediate domains 
between the root and the device domain must
72e257c6f05803 Thomas Gleixner   2024-06-23   23   * have either 
msi_parent_ops.init_dev_msi_info = msi_parent_init_dev_msi_info
72e257c6f05803 Thomas Gleixner   2024-06-23   24   * or invoke it down the line.
72e257c6f05803 Thomas Gleixner   2024-06-23   25   */
72e257c6f05803 Thomas Gleixner   2024-06-23  @26  bool 
msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain *domain,
72e257c6f05803 Thomas Gleixner   2024-06-23   27                               
struct irq_domain *real_parent,
72e257c6f05803 Thomas Gleixner   2024-06-23  @28                               
struct msi_domain_info *info)
72e257c6f05803 Thomas Gleixner   2024-06-23   29  {
72e257c6f05803 Thomas Gleixner   2024-06-23  @30        const struct 
msi_parent_ops *pops = real_parent->msi_parent_ops;
1c000dcaad2bef Thomas Gleixner   2025-02-17  @31        struct irq_chip *chip = 
info->chip;
8c41ccec839c62 Thomas Gleixner   2024-06-23   32        u32 required_flags;
72e257c6f05803 Thomas Gleixner   2024-06-23   33  
72e257c6f05803 Thomas Gleixner   2024-06-23   34        /* Parent ops 
available? */
72e257c6f05803 Thomas Gleixner   2024-06-23   35        if (WARN_ON_ONCE(!pops))
72e257c6f05803 Thomas Gleixner   2024-06-23   36                return false;
72e257c6f05803 Thomas Gleixner   2024-06-23   37  
72e257c6f05803 Thomas Gleixner   2024-06-23   38        /*
72e257c6f05803 Thomas Gleixner   2024-06-23   39         * MSI parent domain 
specific settings. For now there is only the
72e257c6f05803 Thomas Gleixner   2024-06-23   40         * root parent domain, 
e.g. NEXUS, acting as a MSI parent, but it is
72e257c6f05803 Thomas Gleixner   2024-06-23   41         * possible to stack 
MSI parents. See x86 vector -> irq remapping
72e257c6f05803 Thomas Gleixner   2024-06-23   42         */
72e257c6f05803 Thomas Gleixner   2024-06-23  @43        if (domain->bus_token 
== pops->bus_select_token) {
72e257c6f05803 Thomas Gleixner   2024-06-23   44                if 
(WARN_ON_ONCE(domain != real_parent))
72e257c6f05803 Thomas Gleixner   2024-06-23   45                        return 
false;
72e257c6f05803 Thomas Gleixner   2024-06-23   46        } else {
72e257c6f05803 Thomas Gleixner   2024-06-23   47                WARN_ON_ONCE(1);
72e257c6f05803 Thomas Gleixner   2024-06-23   48                return false;
72e257c6f05803 Thomas Gleixner   2024-06-23   49        }
72e257c6f05803 Thomas Gleixner   2024-06-23   50  
8c41ccec839c62 Thomas Gleixner   2024-06-23   51        required_flags = 
pops->required_flags;
8c41ccec839c62 Thomas Gleixner   2024-06-23   52  
72e257c6f05803 Thomas Gleixner   2024-06-23   53        /* Is the target domain 
bus token supported? */
72e257c6f05803 Thomas Gleixner   2024-06-23   54        switch(info->bus_token) 
{
8c41ccec839c62 Thomas Gleixner   2024-06-23   55        case 
DOMAIN_BUS_PCI_DEVICE_MSI:
8c41ccec839c62 Thomas Gleixner   2024-06-23   56        case 
DOMAIN_BUS_PCI_DEVICE_MSIX:
8c41ccec839c62 Thomas Gleixner   2024-06-23   57                if 
(WARN_ON_ONCE(!IS_ENABLED(CONFIG_PCI_MSI)))
8c41ccec839c62 Thomas Gleixner   2024-06-23   58                        return 
false;
8c41ccec839c62 Thomas Gleixner   2024-06-23   59  
496436f4a514a3 Thomas Gleixner   2024-06-23   60                break;
496436f4a514a3 Thomas Gleixner   2024-06-23   61        case 
DOMAIN_BUS_DEVICE_MSI:
496436f4a514a3 Thomas Gleixner   2024-06-23   62                /*
496436f4a514a3 Thomas Gleixner   2024-06-23   63                 * Per device 
MSI should never have any MSI feature bits
496436f4a514a3 Thomas Gleixner   2024-06-23   64                 * set. It's 
sole purpose is to create a dumb interrupt
496436f4a514a3 Thomas Gleixner   2024-06-23   65                 * chip which 
has a device specific irq_write_msi_msg()
496436f4a514a3 Thomas Gleixner   2024-06-23   66                 * callback.
496436f4a514a3 Thomas Gleixner   2024-06-23   67                 */
496436f4a514a3 Thomas Gleixner   2024-06-23   68                if 
(WARN_ON_ONCE(info->flags))
496436f4a514a3 Thomas Gleixner   2024-06-23   69                        return 
false;
496436f4a514a3 Thomas Gleixner   2024-06-23   70  
496436f4a514a3 Thomas Gleixner   2024-06-23   71                /* Core managed 
MSI descriptors */
496436f4a514a3 Thomas Gleixner   2024-06-23  @72                info->flags = 
MSI_FLAG_ALLOC_SIMPLE_MSI_DESCS | MSI_FLAG_FREE_MSI_DESCS;
64a855324311dd Thomas Gleixner   2024-06-23   73                fallthrough;
64a855324311dd Thomas Gleixner   2024-06-23   74        case 
DOMAIN_BUS_WIRED_TO_MSI:
496436f4a514a3 Thomas Gleixner   2024-06-23   75                /* Remove PCI 
specific flags */
496436f4a514a3 Thomas Gleixner   2024-06-23  @76                required_flags 
&= ~MSI_FLAG_PCI_MSI_MASK_PARENT;
8c41ccec839c62 Thomas Gleixner   2024-06-23   77                break;
72e257c6f05803 Thomas Gleixner   2024-06-23   78        default:
72e257c6f05803 Thomas Gleixner   2024-06-23   79                /*
72e257c6f05803 Thomas Gleixner   2024-06-23   80                 * This should 
never be reached. See
72e257c6f05803 Thomas Gleixner   2024-06-23   81                 * 
msi_lib_irq_domain_select()
72e257c6f05803 Thomas Gleixner   2024-06-23   82                 */
72e257c6f05803 Thomas Gleixner   2024-06-23   83                WARN_ON_ONCE(1);
72e257c6f05803 Thomas Gleixner   2024-06-23   84                return false;
72e257c6f05803 Thomas Gleixner   2024-06-23   85        }
72e257c6f05803 Thomas Gleixner   2024-06-23   86  
72e257c6f05803 Thomas Gleixner   2024-06-23   87        /*
72e257c6f05803 Thomas Gleixner   2024-06-23   88         * Mask out the domain 
specific MSI feature flags which are not
72e257c6f05803 Thomas Gleixner   2024-06-23   89         * supported by the 
real parent.
72e257c6f05803 Thomas Gleixner   2024-06-23   90         */
72e257c6f05803 Thomas Gleixner   2024-06-23   91        info->flags             
        &= pops->supported_flags;
72e257c6f05803 Thomas Gleixner   2024-06-23   92        /* Enforce the required 
flags */
8c41ccec839c62 Thomas Gleixner   2024-06-23   93        info->flags             
        |= required_flags;
72e257c6f05803 Thomas Gleixner   2024-06-23   94  
72e257c6f05803 Thomas Gleixner   2024-06-23   95        /* Chip updates for all 
child bus types */
1c000dcaad2bef Thomas Gleixner   2025-02-17  @96        if (!chip->irq_eoi && 
(pops->chip_flags & MSI_CHIP_FLAG_SET_EOI))
1c000dcaad2bef Thomas Gleixner   2025-02-17   97                chip->irq_eoi = 
irq_chip_eoi_parent;
1c000dcaad2bef Thomas Gleixner   2025-02-17  @98        if (!chip->irq_ack && 
(pops->chip_flags & MSI_CHIP_FLAG_SET_ACK))
1c000dcaad2bef Thomas Gleixner   2025-02-17   99                chip->irq_ack = 
irq_chip_ack_parent;
72e257c6f05803 Thomas Gleixner   2024-06-23  100  
72e257c6f05803 Thomas Gleixner   2024-06-23  101        /*
72e257c6f05803 Thomas Gleixner   2024-06-23  102         * The device MSI 
domain can never have a set affinity callback. It
72e257c6f05803 Thomas Gleixner   2024-06-23  103         * always has to rely 
on the parent domain to handle affinity
72e257c6f05803 Thomas Gleixner   2024-06-23  104         * settings. The device 
MSI domain just has to write the resulting
72e257c6f05803 Thomas Gleixner   2024-06-23  105         * MSI message into the 
hardware which is the whole purpose of the
72e257c6f05803 Thomas Gleixner   2024-06-23  106         * device MSI domain 
aside of mask/unmask which is provided e.g. by
72e257c6f05803 Thomas Gleixner   2024-06-23  107         * PCI/MSI device 
domains.
06526443a34c06 Marc Zyngier      2025-05-13  108         *
06526443a34c06 Marc Zyngier      2025-05-13  109         * The exception to the 
rule is when the underlying domain
06526443a34c06 Marc Zyngier      2025-05-13  110         * tells you that 
affinity is not a thing -- for example when
06526443a34c06 Marc Zyngier      2025-05-13  111         * everything is muxed 
behind a single interrupt.
72e257c6f05803 Thomas Gleixner   2024-06-23  112         */
06526443a34c06 Marc Zyngier      2025-05-13 @113        if 
(!chip->irq_set_affinity && !(info->flags & MSI_FLAG_NO_AFFINITY))
1c000dcaad2bef Thomas Gleixner   2025-02-17 @114                
chip->irq_set_affinity = msi_domain_set_affinity;
72e257c6f05803 Thomas Gleixner   2024-06-23  115        return true;
72e257c6f05803 Thomas Gleixner   2024-06-23  116  }
72e257c6f05803 Thomas Gleixner   2024-06-23  117  
EXPORT_SYMBOL_GPL(msi_lib_init_dev_msi_info);
72e257c6f05803 Thomas Gleixner   2024-06-23  118  
72e257c6f05803 Thomas Gleixner   2024-06-23  119  /**
72e257c6f05803 Thomas Gleixner   2024-06-23  120   * msi_lib_irq_domain_select 
- Shared select function for NEXUS domains
72e257c6f05803 Thomas Gleixner   2024-06-23  121   * @d:                Pointer 
to the irq domain on which select is invoked
72e257c6f05803 Thomas Gleixner   2024-06-23  122   * @fwspec:   Firmware spec 
describing what is searched
72e257c6f05803 Thomas Gleixner   2024-06-23  123   * @bus_token:        The bus 
token for which a matching irq domain is looked up
72e257c6f05803 Thomas Gleixner   2024-06-23  124   *
72e257c6f05803 Thomas Gleixner   2024-06-23  125   * Returns:   %0 if @d is not 
what is being looked for
72e257c6f05803 Thomas Gleixner   2024-06-23  126   *
72e257c6f05803 Thomas Gleixner   2024-06-23  127   *            %1 if @d is 
either the domain which is directly searched for or
72e257c6f05803 Thomas Gleixner   2024-06-23  128   *               if @d is 
providing the parent MSI domain for the functionality
72e257c6f05803 Thomas Gleixner   2024-06-23  129   *                     
requested with @bus_token.
72e257c6f05803 Thomas Gleixner   2024-06-23  130   */
72e257c6f05803 Thomas Gleixner   2024-06-23  131  int 
msi_lib_irq_domain_select(struct irq_domain *d, struct irq_fwspec *fwspec,
72e257c6f05803 Thomas Gleixner   2024-06-23  132                              
enum irq_domain_bus_token bus_token)
72e257c6f05803 Thomas Gleixner   2024-06-23  133  {
72e257c6f05803 Thomas Gleixner   2024-06-23  134        const struct 
msi_parent_ops *ops = d->msi_parent_ops;
72e257c6f05803 Thomas Gleixner   2024-06-23  135        u32 busmask = 
BIT(bus_token);
72e257c6f05803 Thomas Gleixner   2024-06-23  136  
880799fc7a3a12 Maxime Chevallier 2024-08-23  137        if (!ops)
880799fc7a3a12 Maxime Chevallier 2024-08-23  138                return 0;
880799fc7a3a12 Maxime Chevallier 2024-08-23  139  
72e257c6f05803 Thomas Gleixner   2024-06-23  140        if (fwspec->fwnode != 
d->fwnode || fwspec->param_count != 0)
72e257c6f05803 Thomas Gleixner   2024-06-23  141                return 0;
72e257c6f05803 Thomas Gleixner   2024-06-23  142  
72e257c6f05803 Thomas Gleixner   2024-06-23  143        /* Handle pure domain 
searches */
72e257c6f05803 Thomas Gleixner   2024-06-23  144        if (bus_token == 
ops->bus_select_token)
72e257c6f05803 Thomas Gleixner   2024-06-23  145                return 1;
72e257c6f05803 Thomas Gleixner   2024-06-23  146  
880799fc7a3a12 Maxime Chevallier 2024-08-23  147        return 
!!(ops->bus_select_mask & busmask);
72e257c6f05803 Thomas Gleixner   2024-06-23 @148  }

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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