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Date: Thu, 10 Dec 2015 13:55:35 +0800
From: kbuild test robot <lkp@intel.com>
To: Joe Perches <joe@perches.com>
Cc: kbuild-all@01.org, Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org,
        Andy Shevchenko <andy.shevchenko@gmail.com>,
        Rasmus Villemoes <linux@rasmusvillemoes.dk>,
        Rob Herring <robh+dt@kernel.org>
Subject: Re: [PATCH] hexdump: Add ability to do endian conversions in
 print_hex_dump functions
Message-ID: <201512101350.IAyMRrzm%fengguang.wu@intel.com>
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Hi Joe,

[auto build test WARNING on v4.4-rc4]
[also build test WARNING on next-20151209]

url:    https://github.com/0day-ci/linux/commits/Joe-Perches/hexdump-Add-ability-to-do-endian-conversions-in-print_hex_dump-functions/20151210-060244
reproduce:
        # apt-get install sparse
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

   include/linux/compiler.h:228:8: sparse: attribute 'no_sanitize_address': unknown attribute
   include/linux/printk.h:430:24: sparse: undefined identifier 'BIT'
>> include/linux/printk.h:430:27: sparse: bad constant expression type
   include/linux/printk.h:431:24: sparse: undefined identifier 'BIT'
   include/linux/printk.h:431:27: sparse: bad constant expression type
   In file included from lib/decompress.c:19:0:
   include/linux/printk.h:430:17: error: implicit declaration of function 'BIT' [-Werror=implicit-function-declaration]
     DUMP_TYPE_LE = BIT(30),
                    ^
   include/linux/printk.h:430:2: error: enumerator value for 'DUMP_TYPE_LE' is not an integer constant
     DUMP_TYPE_LE = BIT(30),
     ^
   include/linux/printk.h:432:1: error: enumerator value for 'DUMP_TYPE_BE' is not an integer constant
    };
    ^
   cc1: some warnings being treated as errors

vim +430 include/linux/printk.h

   414		printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
   415	#else
   416	#define pr_debug_ratelimited(fmt, ...) \
   417		no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
   418	#endif
   419	
   420	extern const struct file_operations kmsg_fops;
   421	
   422	enum {
   423		DUMP_PREFIX_NONE,
   424		DUMP_PREFIX_ADDRESS,
   425		DUMP_PREFIX_OFFSET
   426	};
   427	
   428	enum {
   429		DUMP_TYPE_CPU = 0,
 > 430		DUMP_TYPE_LE = BIT(30),
   431		DUMP_TYPE_BE = BIT(31)
   432	};
   433	
   434	extern int hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
   435				      int groupflags, char *linebuf, size_t linebuflen,
   436				      bool ascii);
   437	#ifdef CONFIG_PRINTK
   438	extern void print_hex_dump(const char *level, const char *prefix_str,

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