linux-kernel - arch/h8300/include/asm/flat.h:31:1: error: expected expression before '}' token

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Message-ID: <201707160950.Mg3mc6Li%fengguang.wu@intel.com>
Date:   Sun, 16 Jul 2017 09:36:51 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Al Viro <viro@...iv.linux.org.uk>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org
Subject: arch/h8300/include/asm/flat.h:31:1: error: expected expression
 before '}' token

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5771a8c08880cdca3bfb4a3fc6d309d6bba20877
commit: 468138d78510688fb5476f98d23f11ac6a63229a binfmt_flat: flat_{get,put}_addr_from_rp() should be able to fail
date:   12 days ago
config: h8300-h8300h-sim_defconfig (attached as .config)
compiler: h8300-linux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 468138d78510688fb5476f98d23f11ac6a63229a
        # save the attached .config to linux build tree
        make.cross ARCH=h8300 

All errors (new ones prefixed by >>):

   In file included from include/linux/flat.h:13:0,
                    from fs/binfmt_flat.c:36:
   arch/h8300/include/asm/flat.h: In function 'flat_get_addr_from_rp':
   arch/h8300/include/asm/flat.h:28:3: error: expected ')' before 'val'
      val &= 0x00ffffff;
      ^~~
>> arch/h8300/include/asm/flat.h:31:1: error: expected expression before '}' token
    }
    ^
   arch/h8300/include/asm/flat.h:26:6: warning: unused variable 'val' [-Wunused-variable]
     u32 val = get_unaligned((__force u32 *)rp);
         ^~~
   arch/h8300/include/asm/flat.h:31:1: warning: no return statement in function returning non-void [-Wreturn-type]
    }
    ^
   In file included from include/linux/kernel.h:13:0,
                    from fs/binfmt_flat.c:20:
   fs/binfmt_flat.c: In function 'load_flat_file':
   include/linux/kern_levels.h:4:18: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'u32 {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/printk.h:136:11: note: in definition of macro 'no_printk'
       printk(fmt, ##__VA_ARGS__); \
              ^~~
   include/linux/kern_levels.h:14:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
   include/linux/printk.h:339:12: note: in expansion of macro 'KERN_DEBUG'
     no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
               ^~~~~~~~~~
   fs/binfmt_flat.c:577:3: note: in expansion of macro 'pr_debug'
      pr_debug("Allocated data+bss+stack (%ld bytes): %lx\n",
      ^~~~~~~~

vim +31 arch/h8300/include/asm/flat.h

    14	
    15	/*
    16	 * on the H8 a couple of the relocations have an instruction in the
    17	 * top byte.  As there can only be 24bits of address space,  we just
    18	 * always preserve that 8bits at the top,  when it isn't an instruction
    19	 * is is 0 (davidm@...pgear.com)
    20	 */
    21	
    22	#define	flat_get_relocate_addr(rel)		(rel & ~0x00000001)
    23	static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
    24						u32 *addr, u32 *persistent)
    25	{
    26		u32 val = get_unaligned((__force u32 *)rp);
    27		if (!(flags & FLAT_FLAG_GOTPIC)
  > 28			val &= 0x00ffffff;
    29		*addr = val;
    30		return 0;
  > 31	}
    32	

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