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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/drivers/crypto/bcm/spu2.c
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@@ -1,17 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright 2016 Broadcom
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License, version 2, as
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- * published by the Free Software Foundation (the "GPL").
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- *
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- * This program is distributed in the hope that it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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- * General Public License version 2 (GPLv2) for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * version 2 (GPLv2) along with this source code.
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  */
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 /*
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@@ -49,21 +38,21 @@
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 	SPU2_DTLS_AEAD = 10
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 };
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-char *spu2_cipher_type_names[] = { "None", "AES128", "AES192", "AES256",
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+static char *spu2_cipher_type_names[] = { "None", "AES128", "AES192", "AES256",
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 	"DES", "3DES"
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 };
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-char *spu2_cipher_mode_names[] = { "ECB", "CBC", "CTR", "CFB", "OFB", "XTS",
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-	"CCM", "GCM"
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+static char *spu2_cipher_mode_names[] = { "ECB", "CBC", "CTR", "CFB", "OFB",
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+	"XTS", "CCM", "GCM"
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 };
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-char *spu2_hash_type_names[] = { "None", "AES128", "AES192", "AES256",
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+static char *spu2_hash_type_names[] = { "None", "AES128", "AES192", "AES256",
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 	"Reserved", "Reserved", "MD5", "SHA1", "SHA224", "SHA256", "SHA384",
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 	"SHA512", "SHA512/224", "SHA512/256", "SHA3-224", "SHA3-256",
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 	"SHA3-384", "SHA3-512"
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 };
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-char *spu2_hash_mode_names[] = { "CMAC", "CBC-MAC", "XCBC-MAC", "HMAC",
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+static char *spu2_hash_mode_names[] = { "CMAC", "CBC-MAC", "XCBC-MAC", "HMAC",
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 	"Rabin", "CCM", "GCM", "Reserved"
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 };
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@@ -553,7 +542,7 @@
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 /**
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  * spu2_fmd_init() - At setkey time, initialize the fixed meta data for
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- * subsequent ablkcipher requests for this context.
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+ * subsequent skcipher requests for this context.
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  * @spu2_cipher_type:  Cipher algorithm
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  * @spu2_mode:         Cipher mode
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  * @cipher_key_len:    Length of cipher key, in bytes
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@@ -1118,13 +1107,13 @@
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 }
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 /**
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- * spu_cipher_req_init() - Build an ablkcipher SPU2 request message header,
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+ * spu_cipher_req_init() - Build an skcipher SPU2 request message header,
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  * including FMD and OMD.
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  * @spu_hdr:       Location of start of SPU request (FMD field)
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  * @cipher_parms:  Parameters describing cipher request
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  *
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  * Called at setkey time to initialize a msg header that can be reused for all
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- * subsequent ablkcipher requests. Construct the message starting at spu_hdr.
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+ * subsequent skcipher requests. Construct the message starting at spu_hdr.
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  * Caller should allocate this buffer in DMA-able memory at least
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  * SPU_HEADER_ALLOC_LEN bytes long.
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  *
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@@ -1181,21 +1170,16 @@
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  * @spu_req_hdr_len: Length in bytes of the SPU request header
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  * @isInbound:       0 encrypt, 1 decrypt
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  * @cipher_parms:    Parameters describing cipher operation to be performed
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- * @update_key:      If true, rewrite the cipher key in SCTX
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  * @data_size:       Length of the data in the BD field
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  *
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  * Assumes much of the header was already filled in at setkey() time in
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  * spu_cipher_req_init().
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- * spu_cipher_req_init() fills in the encryption key. For RC4, when submitting a
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- * request for a non-first chunk, we use the 260-byte SUPDT field from the
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- * previous response as the key. update_key is true for this case. Unused in all
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- * other cases.
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+ * spu_cipher_req_init() fills in the encryption key.
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  */
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 void spu2_cipher_req_finish(u8 *spu_hdr,
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 			    u16 spu_req_hdr_len,
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 			    unsigned int is_inbound,
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 			    struct spu_cipher_parms *cipher_parms,
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-			    bool update_key,
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 			    unsigned int data_size)
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 {
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 	struct SPU2_FMD *fmd;
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@@ -1207,11 +1191,6 @@
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 	flow_log(" in: %u\n", is_inbound);
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 	flow_log(" cipher alg: %u, cipher_type: %u\n", cipher_parms->alg,
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 		 cipher_parms->type);
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-	if (update_key) {
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-		flow_log(" cipher key len: %u\n", cipher_parms->key_len);
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-		flow_dump("  key: ", cipher_parms->key_buf,
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-			  cipher_parms->key_len);
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-	}
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 	flow_log(" iv len: %d\n", cipher_parms->iv_len);
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 	flow_dump("    iv: ", cipher_parms->iv_buf, cipher_parms->iv_len);
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 	flow_log(" data_size: %u\n", data_size);