Re: [PATCH v3 1/3] resource: Use list_head to link sibling resource

[Baoquan He]

On 04/26/18 at 11:23am, kbuild test robot wrote:
> Hi Baoquan,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.17-rc2 next-20180424]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180419-223752
> config: xtensa-common_defconfig (attached as .config)
> compiler: xtensa-linux-gcc (GCC) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=xtensa 
> 
> All errors (new ones prefixed by >>):
> 
>    In file included from arch/xtensa/lib/pci-auto.c:22:0:
>    arch/xtensa/include/asm/pci-bridge.h: In function 'pcibios_init_resource':
> >> arch/xtensa/include/asm/pci-bridge.h:74:15: error: incompatible types when assigning to type 'struct list_head' from type 'void *'
>      res->sibling = NULL;
>                   ^
>    arch/xtensa/include/asm/pci-bridge.h:75:13: error: incompatible types when assigning to type 'struct list_head' from type 'void *'
>      res->child = NULL;

Thanks, below fix can fix it.

diff --git a/arch/xtensa/include/asm/pci-bridge.h b/arch/xtensa/include/asm/pci-bridge.h
index 0b68c76ec1e6..f487b06817df 100644
--- a/arch/xtensa/include/asm/pci-bridge.h
+++ b/arch/xtensa/include/asm/pci-bridge.h
@@ -71,8 +71,8 @@ static inline void pcibios_init_resource(struct resource *res,
 	res->flags = flags;
 	res->name = name;
 	res->parent = NULL;
-	res->sibling = NULL;
-	res->child = NULL;
+	INIT_LIST_HEAD(&res->child);
+	INIT_LIST_HEAD(&res->sibling);
 }
 
 

>                 ^
> 
> vim +74 arch/xtensa/include/asm/pci-bridge.h
> 
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  65  
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  66  static inline void pcibios_init_resource(struct resource *res,
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  67  		unsigned long start, unsigned long end, int flags, char *name)
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  68  {
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  69  	res->start = start;
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  70  	res->end = end;
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  71  	res->flags = flags;
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  72  	res->name = name;
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  73  	res->parent = NULL;
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23 @74  	res->sibling = NULL;
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  75  	res->child = NULL;
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  76  }
> 9a8fd558 include/asm-xtensa/pci-bridge.h Chris Zankel 2005-06-23  77  
> 
> :::::: The code at line 74 was first introduced by commit
> :::::: 9a8fd5589902153a134111ed7a40f9cca1f83254 [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 6
> 
> :::::: TO: Chris Zankel <czankel@xxxxxxxxxxxxx>
> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation