linux-kernel - lib/crypto/blake2s-selftest.c:566:13: warning: no previous prototype for 'blake2s

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Date:   Fri, 13 Nov 2020 16:02:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Jason A. Donenfeld" <zx2c4@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Samuel Neves <sneves@....uc.pt>,
        Ard Biesheuvel <ardb@...nel.org>
Subject: lib/crypto/blake2s-selftest.c:566:13: warning: no previous prototype
 for 'blake2s_selftest'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   585e5b17b92dead8a3aca4e3c9876fbca5f7e0ba
commit: 66d7fb94e4ffe5acc589e0b2b4710aecc1f07a28 crypto: blake2s - generic C library implementation and selftest
date:   12 months ago
config: parisc-randconfig-r003-20201113 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d7fb94e4ffe5acc589e0b2b4710aecc1f07a28
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 66d7fb94e4ffe5acc589e0b2b4710aecc1f07a28
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> lib/crypto/blake2s-selftest.c:566:13: warning: no previous prototype for 'blake2s_selftest' [-Wmissing-prototypes]
     566 | bool __init blake2s_selftest(void)
         |             ^~~~~~~~~~~~~~~~

vim +/blake2s_selftest +566 lib/crypto/blake2s-selftest.c

   565	
 > 566	bool __init blake2s_selftest(void)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (29334 bytes)