[dhowells-fs:rxrpc-rxgk 8/8] net/rxrpc/rxgk-kdf.c:876:5: warning: no previous prototype for 'rxgk_set_up_token_cipher'

[dhowells-fs:rxrpc-rxgk 8/8] net/rxrpc/rxgk-kdf.c:876:5: warning: no previous prototype for 'rxgk_set_up_token_cipher'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git rxrpc-rxgk
head:   4a2514097a3f7a76bce42c636d4cf8b5a9cd4787
commit: 4a2514097a3f7a76bce42c636d4cf8b5a9cd4787 [8/8] rxrpc: Implement the yfs-rxgk transport class (security index 6)
config: sh-allmodconfig (attached as .config)
compiler: sh4-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
        git checkout 4a2514097a3f7a76bce42c636d4cf8b5a9cd4787
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh 

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

All warnings (new ones prefixed by >>):

   net/rxrpc/rxgk-kdf.c:364:5: warning: no previous prototype for 'rxgk_calc_DK' [-Wmissing-prototypes]
     364 | int rxgk_calc_DK(const struct rxgk_krb5_enctype *gk5e,
         |     ^~~~~~~~~~~~
>> net/rxrpc/rxgk-kdf.c:876:5: warning: no previous prototype for 'rxgk_set_up_token_cipher' [-Wmissing-prototypes]
     876 | int rxgk_set_up_token_cipher(const struct rxgk_buffer *server_key,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~

# https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/commit/?id=4a2514097a3f7a76bce42c636d4cf8b5a9cd4787
git remote add dhowells-fs https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
git fetch --no-tags dhowells-fs rxrpc-rxgk
git checkout 4a2514097a3f7a76bce42c636d4cf8b5a9cd4787
vim +/rxgk_set_up_token_cipher +876 net/rxrpc/rxgk-kdf.c

   871	
   872	/*
   873	 * Use the server secret key to set up the ciphers that will be used to extract
   874	 * the token from a response packet.
   875	 */
 > 876	int rxgk_set_up_token_cipher(const struct rxgk_buffer *server_key,
   877				     struct rxgk_enc_keys *token_key,
   878				     unsigned int enctype,
   879				     gfp_t gfp)
   880	{
   881		const struct rxgk_krb5_enctype *gk5e;
   882		struct rxgk_buffer key;
   883		int ret;
   884		u8 *buffer;
   885	
   886		gk5e = rxgk_find_enctype(enctype);
   887		if (!gk5e)
   888			return -ENOPKG;
   889	
   890		buffer = kzalloc(gk5e->keybytes, gfp);
   891		if (!buffer)
   892			return -ENOMEM;
   893	
   894		key.len = gk5e->keybytes;
   895		key.data = buffer;
   896	
   897		DERIVE_SKCIPHER(server_key, rxgk_const_token_Ke, &token_key->Ke);
   898		DERIVE_HMAC    (server_key, rxgk_const_token_Ki, &token_key->Ki);
   899	
   900		kfree(buffer);
   901		return 0;
   902	
   903	out:
   904		kfree(buffer);
   905		if (token_key->Ke)
   906			crypto_free_sync_skcipher(token_key->Ke);
   907		if (token_key->Ki)
   908			crypto_free_shash(token_key->Ki);
   909		token_key->Ke = NULL;
   910		token_key->Ki = NULL;
   911		return ret;
   912	}
   913	

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

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