[android-common:mirror-poly-aosp-pixel-laj 1/1] arch/x86/include/asm/pci_x86.h:241:9: error: call to undeclared function 'pv_pci_mmcfg_readb'; ISO C99 and later do not support implicit function declarations

[android-common:mirror-poly-aosp-pixel-laj 1/1] arch/x86/include/asm/pci_x86.h:241:9: error: call to undeclared function 'pv_pci_mmcfg_readb'; ISO C99 and later do not support implicit function declarations

[kernel test robot]

tree:   https://android.googlesource.com/kernel/common mirror-poly-aosp-pixel-laj
head:   595daaae8397c27158e7b67211859925d3dd2338
commit: 86e78ec63732935a6f2f6d269905eb2e4cacfb21 [1/1] ANDROID: x86/paravirt: Extend pv_mmio_ops to support pci mmcfg read and write
config: x86_64-randconfig-161-20260305 (https://download.01.org/0day-ci/archive/20260305/202603050727.4NJmn5Tm-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
smatch: v0.5.0-9004-gb810ac53
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260305/202603050727.4NJmn5Tm-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603050727.4NJmn5Tm-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/x86/kernel/resource.c:5:
>> arch/x86/include/asm/pci_x86.h:241:9: error: call to undeclared function 'pv_pci_mmcfg_readb'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     241 |         return pv_pci_mmcfg_readb(pos);
         |                ^
   arch/x86/include/asm/pci_x86.h:241:9: note: did you mean 'pci_mmcfg_readb'?
   arch/x86/include/asm/pci_x86.h:202:29: note: 'pci_mmcfg_readb' declared here
     202 | static inline unsigned char pci_mmcfg_readb(const volatile void __iomem *pos)
         |                             ^
>> arch/x86/include/asm/pci_x86.h:246:9: error: call to undeclared function 'pv_pci_mmcfg_readw'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     246 |         return pv_pci_mmcfg_readw(pos);
         |                ^
   arch/x86/include/asm/pci_x86.h:246:9: note: did you mean 'pci_mmcfg_readw'?
   arch/x86/include/asm/pci_x86.h:209:30: note: 'pci_mmcfg_readw' declared here
     209 | static inline unsigned short pci_mmcfg_readw(const volatile void __iomem *pos)
         |                              ^
>> arch/x86/include/asm/pci_x86.h:251:9: error: call to undeclared function 'pv_pci_mmcfg_readl'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     251 |         return pv_pci_mmcfg_readl(pos);
         |                ^
   arch/x86/include/asm/pci_x86.h:251:9: note: did you mean 'pci_mmcfg_readl'?
   arch/x86/include/asm/pci_x86.h:216:28: note: 'pci_mmcfg_readl' declared here
     216 | static inline unsigned int pci_mmcfg_readl(const volatile void __iomem *pos)
         |                            ^
>> arch/x86/include/asm/pci_x86.h:256:2: error: call to undeclared function 'pv_pci_mmcfg_writeb'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     256 |         pv_pci_mmcfg_writeb(val, pos);
         |         ^
   arch/x86/include/asm/pci_x86.h:256:2: note: did you mean 'pci_mmcfg_writeb'?
   arch/x86/include/asm/pci_x86.h:223:20: note: 'pci_mmcfg_writeb' declared here
     223 | static inline void pci_mmcfg_writeb(unsigned char val, volatile void __iomem *pos)
         |                    ^
>> arch/x86/include/asm/pci_x86.h:261:2: error: call to undeclared function 'pv_pci_mmcfg_writew'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     261 |         pv_pci_mmcfg_writew(val, pos);
         |         ^
   arch/x86/include/asm/pci_x86.h:261:2: note: did you mean 'pci_mmcfg_writew'?
   arch/x86/include/asm/pci_x86.h:228:20: note: 'pci_mmcfg_writew' declared here
     228 | static inline void pci_mmcfg_writew(unsigned short val, volatile void __iomem *pos)
         |                    ^
>> arch/x86/include/asm/pci_x86.h:266:2: error: call to undeclared function 'pv_pci_mmcfg_writel'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     266 |         pv_pci_mmcfg_writel(val, pos);
         |         ^
   arch/x86/include/asm/pci_x86.h:266:2: note: did you mean 'pci_mmcfg_writel'?
   arch/x86/include/asm/pci_x86.h:233:20: note: 'pci_mmcfg_writel' declared here
     233 | static inline void pci_mmcfg_writel(unsigned int val, volatile void __iomem *pos)
         |                    ^
   6 errors generated.


vim +/pv_pci_mmcfg_readb +241 arch/x86/include/asm/pci_x86.h

   237	
   238	#ifdef CONFIG_PARAVIRT
   239	static inline unsigned char mmio_config_readb(void __iomem *pos)
   240	{
 > 241		return pv_pci_mmcfg_readb(pos);
   242	}
   243	
   244	static inline unsigned short mmio_config_readw(void __iomem *pos)
   245	{
 > 246		return pv_pci_mmcfg_readw(pos);
   247	}
   248	
   249	static inline unsigned int mmio_config_readl(void __iomem *pos)
   250	{
 > 251		return pv_pci_mmcfg_readl(pos);
   252	}
   253	
   254	static inline void mmio_config_writeb(void __iomem *pos, u8 val)
   255	{
 > 256		pv_pci_mmcfg_writeb(val, pos);
   257	}
   258	
   259	static inline void mmio_config_writew(void __iomem *pos, u16 val)
   260	{
 > 261		pv_pci_mmcfg_writew(val, pos);
   262	}
   263	
   264	static inline void mmio_config_writel(void __iomem *pos, u32 val)
   265	{
 > 266		pv_pci_mmcfg_writel(val, pos);
   267	}
   268	#else
   269	static inline unsigned char mmio_config_readb(void __iomem *pos)
   270	{
   271		return pci_mmcfg_readb(pos);
   272	}
   273	

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