[kbuild-all] [ti:ti-linux-5.4.y 2369/11671] drivers/crypto/sa2ul.c:753:14: warning: variable 'cra_name' set but not used

tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-linux-5.4.y head: a78602ef875fdf4abcb333da76f020cba57cc913 commit: 5b8516f3bedb3e1c273e7747b6e4a85c6e47907a [2369/11671] crypto: sa2ul: Add crypto driver config: nios2-randconfig-r034-20201117 (attached as .config) compiler: nios2-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 remote add ti git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git git fetch --no-tags ti ti-linux-5.4.y git checkout 5b8516f3bedb3e1c273e7747b6e4a85c6e47907a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/crypto/sa2ul.c: In function 'sa_aes_setkey': 753 | const char *cra_name; | ^~~~~~~~ drivers/crypto/sa2ul.c: In function 'sa_aes_run': drivers/crypto/sa2ul.c:952:8: warning: variable 'flags' set but not used [-Wunused-but-set-variable] 952 | gfp_t flags; | ^~~~~ drivers/crypto/sa2ul.c: At top level: 1169 | void sa_register_algos(const struct device *dev) | ^~~~~~~~~~~~~~~~~ 1198 | void sa_unregister_algos(const struct device *dev) | ^~~~~~~~~~~~~~~~~~~ drivers/crypto/sa2ul.c: In function 'sa_unregister_algos': drivers/crypto/sa2ul.c:1202:9: warning: variable 'err' set but not used [-Wunused-but-set-variable] 1202 | int i, err = 0, num_algs = ARRAY_SIZE(sa_algs); | ^~~ drivers/crypto/sa2ul.c:1200:8: warning: variable 'alg_name' set but not used [-Wunused-but-set-variable] 1200 | char *alg_name; | ^~~~~~~~ drivers/crypto/sa2ul.c: At top level: drivers/crypto/sa2ul.c:1305:5: warning: no previous prototype for 'sa2ul_trng_enable' [-Wmissing-prototypes] 1305 | int sa2ul_trng_enable(struct device *dev) | ^~~~~~~~~~~~~~~~~ vim +/cra_name +753 drivers/crypto/sa2ul.c 747 748 static int sa_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, 749 unsigned int keylen, struct algo_data *ad) 750 { 751 struct sa_tfm_ctx *ctx = crypto_ablkcipher_ctx(tfm); 752 754 int cmdl_len; 755 struct sa_cmdl_cfg cfg; 756 757 if (keylen != AES_KEYSIZE_128 && keylen != AES_KEYSIZE_192 && 758 keylen != AES_KEYSIZE_256) 759 return -EINVAL; 760 761 cra_name = crypto_tfm_alg_name(&tfm->base); 762 763 memzero_explicit(&cfg, sizeof(cfg)); 764 cfg.enc1st = 1; 765 cfg.enc_eng_id = ad->enc_eng.eng_id; 766 cfg.iv_size = crypto_ablkcipher_ivsize(tfm); 767 cfg.auth_eng_id = SA_ENG_ID_NONE; 768 cfg.auth_subkey_len = 0; 769 770 /* Setup Encryption Security Context & Command label template */ 771 if (sa_init_sc(&ctx->enc, key, keylen, 772 NULL, 0, ad, 1, &ctx->enc.epib[1], false)) 773 goto badkey; 774 775 cmdl_len = sa_format_cmdl_gen(&cfg, 776 (u8 *)ctx->enc.cmdl, 777 &ctx->enc.cmdl_upd_info); 778 if (cmdl_len <= 0 || (cmdl_len > SA_MAX_CMDL_WORDS * sizeof(u32))) 779 goto badkey; 780 781 ctx->enc.cmdl_size = cmdl_len; 782 783 /* Setup Decryption Security Context & Command label template */ 784 if (sa_init_sc(&ctx->dec, key, keylen, 785 NULL, 0, ad, 0, &ctx->dec.epib[1], false)) 786 goto badkey; 787 788 cfg.enc1st = 0; 789 cfg.enc_eng_id = ad->enc_eng.eng_id; 790 cfg.auth_eng_id = SA_ENG_ID_NONE; 791 cfg.auth_subkey_len = 0; 792 cmdl_len = sa_format_cmdl_gen(&cfg, (u8 *)ctx->dec.cmdl, 793 &ctx->dec.cmdl_upd_info); 794 795 if (cmdl_len <= 0 || (cmdl_len > SA_MAX_CMDL_WORDS * sizeof(u32))) 796 goto badkey; 797 798 ctx->dec.cmdl_size = cmdl_len; 799 ctx->iv_idx = ad->iv_idx; 800 801 kfree(ad); 802 803 return 0; 804 805 badkey: 806 dev_err(sa_k3_dev, "%s: badkey\n", __func__); 807 return -EINVAL; 808 } 809 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org