542 	 * for calculating ipad and opad  in cpt_aead_init()
547 		ctx->ipad = kzalloc(ss, GFP_KERNEL);  in cpt_aead_init()
548 		if (!ctx->ipad) {  in cpt_aead_init()
555 			kfree(ctx->ipad);  in cpt_aead_init()
564 		kfree(ctx->ipad);  in cpt_aead_init()
621 	kfree(ctx->ipad);  in otx_cpt_aead_exit()
756 	u8 *ipad = NULL, *opad = NULL;  in aead_hmac_init()  local
792 	ipad = ctx->ipad;  in aead_hmac_init()
795 	memcpy(ipad, ctx->key, authkeylen);  in aead_hmac_init()
796 	memset(ipad + authkeylen, 0, bs - authkeylen);  in aead_hmac_init()
797 	memcpy(opad, ipad, bs);  in aead_hmac_init()
800 		ipad[icount] ^= 0x36;  in aead_hmac_init()
806 	 * algorithm is retrieved for IPAD & OPAD  in aead_hmac_init()
809 	/* IPAD Calculation */  in aead_hmac_init()
811 	crypto_shash_update(&ctx->sdesc->shash, ipad, bs);  in aead_hmac_init()
812 	crypto_shash_export(&ctx->sdesc->shash, ipad);  in aead_hmac_init()
813 	ret = swap_pad(ctx->mac_type, ipad);  in aead_hmac_init()
910 		if (ctx->ipad)  in create_aead_ctx_hdr()
911 			memcpy(fctx->hmac.e.ipad, ctx->ipad, ds);  in create_aead_ctx_hdr()