Hi Chen,

[auto build test WARNING on tip/x86/core]
[also build test WARNING on v4.5-rc3 next-20160212]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improving the system]

url:    
https://github.com/0day-ci/linux/commits/Chen-Yucong/x86-kernel-use-pr_-level-and-dev_-level/20160214-121236
config: x86_64-randconfig-x012-201607 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> arch/x86/pci/mmconfig-shared.c:25:0: warning: "pr_fmt" redefined
    #define pr_fmt(fmt) "PCI: " fmt
    ^
   In file included from include/linux/kernel.h:13:0,
                    from include/linux/list.h:8,
                    from include/linux/pci.h:25,
                    from arch/x86/pci/mmconfig-shared.c:13:
   include/linux/printk.h:236:0: note: this is the location of the previous 
definition
    #define pr_fmt(fmt) fmt
    ^

vim +/pr_fmt +25 arch/x86/pci/mmconfig-shared.c

     9   * Per-architecture code takes care of the mappings and accesses
    10   * themselves.
    11   */
    12  
    13  #include <linux/pci.h>
    14  #include <linux/init.h>
    15  #include <linux/sfi_acpi.h>
    16  #include <linux/bitmap.h>
    17  #include <linux/dmi.h>
    18  #include <linux/slab.h>
    19  #include <linux/mutex.h>
    20  #include <linux/rculist.h>
    21  #include <asm/e820.h>
    22  #include <asm/pci_x86.h>
    23  #include <asm/acpi.h>
    24  
  > 25  #define pr_fmt(fmt) "PCI: " fmt
    26  
    27  /* Indicate if the mmcfg resources have been placed into the resource 
table. */
    28  static bool pci_mmcfg_running_state;
    29  static bool pci_mmcfg_arch_init_failed;
    30  static DEFINE_MUTEX(pci_mmcfg_lock);
    31  
    32  LIST_HEAD(pci_mmcfg_list);
    33  

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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