[conor:pcie-fix-series 2/10] include/uapi/linux/const.h:20:19: warning: large integer implicitly truncated to unsigned type

[conor:pcie-fix-series 2/10] include/uapi/linux/const.h:20:19: warning: large integer implicitly truncated to unsigned type

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux.git pcie-fix-series
head:   91793dfd9508b4d9d7b2922cf1d76012848a7f58
commit: 3ec01400bd0a58b64fcbf0bc190ea114dff2364f [2/10] PCI: microchip: Fix inbound address translation tables
config: i386-randconfig-016-20240612 (https://download.01.org/0day-ci/archive/20240612/202406120856.AcCSUBI4-lkp@intel.com/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240612/202406120856.AcCSUBI4-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/202406120856.AcCSUBI4-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/vdso/const.h:5:0,
                    from include/linux/const.h:4,
                    from include/linux/align.h:5,
                    from include/linux/kernel.h:15,
                    from include/linux/clk.h:13,
                    from drivers/pci/controller/pcie-microchip-host.c:11:
   drivers/pci/controller/pcie-microchip-host.c: In function 'mc_pcie_setup_inbound_ranges':
>> include/uapi/linux/const.h:20:19: warning: large integer implicitly truncated to unsigned type [-Woverflow]
    #define __AC(X,Y) (X##Y)
                      ^
   include/uapi/linux/const.h:21:18: note: in expansion of macro '__AC'
    #define _AC(X,Y) __AC(X,Y)
                     ^~~~
   include/linux/sizes.h:46:18: note: in expansion of macro '_AC'
    #define SZ_4G    _AC(0x100000000, ULL)
                     ^~~
   drivers/pci/controller/pcie-microchip-host.c:1003:39: note: in expansion of macro 'SZ_4G'
       mc_pcie_setup_inbound_atr(0, 0, 0, SZ_4G);
                                          ^~~~~


vim +20 include/uapi/linux/const.h

9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02   6  
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02   7  /* Some constant macros are used in both assembler and
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02   8   * C code.  Therefore we cannot annotate them always with
6df95fd7ad9a84 include/linux/const.h      Randy Dunlap        2007-05-08   9   * 'UL' and other type specifiers unilaterally.  We
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02  10   * use the following macros to deal with this.
74ef649fe847fd include/linux/const.h      Jeremy Fitzhardinge 2008-01-30  11   *
74ef649fe847fd include/linux/const.h      Jeremy Fitzhardinge 2008-01-30  12   * Similarly, _AT() will cast an expression with a type in C, but
74ef649fe847fd include/linux/const.h      Jeremy Fitzhardinge 2008-01-30  13   * leave it unchanged in asm.
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02  14   */
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02  15  
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02  16  #ifdef __ASSEMBLY__
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02  17  #define _AC(X,Y)	X
74ef649fe847fd include/linux/const.h      Jeremy Fitzhardinge 2008-01-30  18  #define _AT(T,X)	X
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02  19  #else
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02 @20  #define __AC(X,Y)	(X##Y)
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02  21  #define _AC(X,Y)	__AC(X,Y)
74ef649fe847fd include/linux/const.h      Jeremy Fitzhardinge 2008-01-30  22  #define _AT(T,X)	((T)(X))
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02  23  #endif
9d291e787b2b71 include/asm-x86_64/const.h Vivek Goyal         2007-05-02  24  

:::::: The code at line 20 was first introduced by commit
:::::: 9d291e787b2b71d1b57e5fbb24ba9c70e748ed84 [PATCH] x86-64: Assembly safe page.h and pgtable.h

:::::: TO: Vivek Goyal <vgoyal@in.ibm.com>
:::::: CC: Andi Kleen <andi@basil.nowhere.org>

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