tree:   git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   84db9c17966188a15e1f2266e6ef80b353114c21
commit: b0291c3d28e83966e8b54cddd836d51afa86ac0f [8118/8276] lib/decompressors: use real out buf size for gunzip with kernel
config: mips-mtx1_defconfig (attached as .config)
reproduce:
  wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
  chmod +x ~/bin/make.cross
  git checkout b0291c3d28e83966e8b54cddd836d51afa86ac0f
  # save the attached .config to linux build tree
  make.cross ARCH=mips 

All warnings (new ones prefixed by >>):

   In file included from arch/mips/boot/compressed/decompress.c:53:0:
>> arch/mips/boot/compressed/../../../../lib/decompress_inflate.c:205:17: warning: '__decompress' defined but not used [-Wunused-function]
    STATIC int INIT __decompress(unsigned char *buf, long len,
                    ^

vim +/__decompress +205 arch/mips/boot/compressed/../../../../lib/decompress_inflate.c

   189			       long *pos,
   190			       void (*error)(char *x))
   191	{
   192		return __gunzip(buf, len, fill, flush, out_buf, 0, pos, error);
   193	}
   194	
   195	#ifdef PREBOOT
   196	STATIC int INIT decompress(unsigned char *buf, long len,
   197				   long (*fill)(void*, unsigned long),
   198				   long (*flush)(void*, unsigned long),
   199				   unsigned char *out_buf,
   200				   long *pos,
   201				   void (*error)(char *x))
   202	{
   203		return gunzip(buf, len, fill, flush, out_buf, pos, error);
   204	}
 > 205	STATIC int INIT __decompress(unsigned char *buf, long len,
   206				   long (*fill)(void*, unsigned long),
   207				   long (*flush)(void*, unsigned long),
   208				   unsigned char *out_buf, long out_len,
   209				   long *pos,
   210				   void (*error)(char *x))
   211	{
   212		return __gunzip(buf, len, fill, flush, out_buf, out_len, pos, error);
   213	}

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