write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/net/dccp/feat.c
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  net/dccp/feat.c
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  *
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  *  Rewrote from scratch, some bits from earlier code by
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  *  Copyright (c) 2005 Andrea Bittau <a.bittau@cs.ucl.ac.uk>
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  *
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- *
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  *  ASSUMPTIONS
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  *  -----------
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  *  o Feature negotiation is coordinated with connection setup (as in TCP), wild
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  *  o All currently known SP features have 1-byte quantities. If in the future
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  *    extensions of RFCs 4340..42 define features with item lengths larger than
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  *    one byte, a feature-specific extension of the code will be required.
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- *
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- *  This program is free software; you can redistribute it and/or
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- *  modify it under the terms of the GNU General Public License
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- *  as published by the Free Software Foundation; either version
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- *  2 of the License, or (at your option) any later version.
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  */
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 #include <linux/module.h>
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 #include <linux/slab.h>
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 /**
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  * dccp_feat_index  -  Hash function to map feature number into array position
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+ * @feat_num: feature to hash, one of %dccp_feature_numbers
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+ *
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  * Returns consecutive array index or -1 if the feature is not understood.
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  */
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 static int dccp_feat_index(u8 feat_num)
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 /**
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  * dccp_feat_valid_nn_length  -  Enforce length constraints on NN options
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+ * @feat_num: feature to return length of, one of %dccp_feature_numbers
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+ *
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  * Length is between 0 and %DCCP_OPTVAL_MAXLEN. Used for outgoing packets only,
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  * incoming options are accepted as long as their values are valid.
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  */
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 	 *	Negotiation during connection setup
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 	 */
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 	case DCCP_LISTEN:
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-		server = true;			/* fall through */
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+		server = true;
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+		fallthrough;
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 	case DCCP_REQUESTING:
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 		switch (opt) {
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 		case DCCPO_CHANGE_L:
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 /**
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  * dccp_feat_init  -  Seed feature negotiation with host-specific defaults
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+ * @sk: Socket to initialize.
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+ *
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  * This initialises global defaults, depending on the value of the sysctls.
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  * These can later be overridden by registering changes via setsockopt calls.
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  * The last link in the chain is finalise_settings, to make sure that between