/* SCTP kernel implementation * (C) Copyright IBM Corp. 2001, 2004 * Copyright (c) 1999-2000 Cisco, Inc. * Copyright (c) 1999-2001 Motorola, Inc. * Copyright (c) 2001 Intel Corp. * Copyright (c) 2001 Nokia, Inc. * Copyright (c) 2001 La Monte H.P. Yarroll * * These are the definitions needed for the sctp_ulpevent type. The * sctp_ulpevent type is used to carry information from the state machine * upwards to the ULP. * * This file is part of the SCTP kernel implementation * * This SCTP implementation is free software; * you can redistribute it and/or modify it under the terms of * the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This SCTP implementation is distributed in the hope that it * will be useful, but WITHOUT ANY WARRANTY; without even the implied * ************************ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GNU CC; see the file COPYING. If not, see * . * * Please send any bug reports or fixes you make to the * email address(es): * lksctp developers * * Written or modified by: * Jon Grimm * La Monte H.P. Yarroll * Karl Knutson * Sridhar Samudrala */ #ifndef __sctp_ulpevent_h__ #define __sctp_ulpevent_h__ /* A structure to carry information to the ULP (e.g. Sockets API) */ /* Warning: This sits inside an skb.cb[] area. Be very careful of * growing this structure as it is at the maximum limit now. */ struct sctp_ulpevent { struct sctp_association *asoc; struct sctp_chunk *chunk; unsigned int rmem_len; __u32 ppid; __u32 tsn; __u32 cumtsn; __u16 stream; __u16 ssn; __u16 flags; __u16 msg_flags; }; /* Retrieve the skb this event sits inside of. */ static inline struct sk_buff *sctp_event2skb(const struct sctp_ulpevent *ev) { return container_of((void *)ev, struct sk_buff, cb); } /* Retrieve & cast the event sitting inside the skb. */ static inline struct sctp_ulpevent *sctp_skb2event(struct sk_buff *skb) { return (struct sctp_ulpevent *)skb->cb; } void sctp_ulpevent_free(struct sctp_ulpevent *); int sctp_ulpevent_is_notification(const struct sctp_ulpevent *); unsigned int sctp_queue_purge_ulpevents(struct sk_buff_head *list); struct sctp_ulpevent *sctp_ulpevent_make_assoc_change( const struct sctp_association *asoc, __u16 flags, __u16 state, __u16 error, __u16 outbound, __u16 inbound, struct sctp_chunk *chunk, gfp_t gfp); struct sctp_ulpevent *sctp_ulpevent_make_peer_addr_change( const struct sctp_association *asoc, const struct sockaddr_storage *aaddr, int flags, int state, int error, gfp_t gfp); struct sctp_ulpevent *sctp_ulpevent_make_remote_error( const struct sctp_association *asoc, struct sctp_chunk *chunk, __u16 flags, gfp_t gfp); struct sctp_ulpevent *sctp_ulpevent_make_send_failed( const struct sctp_association *asoc, struct sctp_chunk *chunk, __u16 flags, __u32 error, gfp_t gfp); struct sctp_ulpevent *sctp_ulpevent_make_shutdown_event( const struct sctp_association *asoc, __u16 flags, gfp_t gfp); struct sctp_ulpevent *sctp_ulpevent_make_pdapi( const struct sctp_association *asoc, __u32 indication, gfp_t gfp); struct sctp_ulpevent *sctp_ulpevent_make_adaptation_indication( const struct sctp_association *asoc, gfp_t gfp); struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc, struct sctp_chunk *chunk, gfp_t gfp); struct sctp_ulpevent *sctp_ulpevent_make_authkey( const struct sctp_association *asoc, __u16 key_id, __u32 indication, gfp_t gfp); struct sctp_ulpevent *sctp_ulpevent_make_sender_dry_event( const struct sctp_association *asoc, gfp_t gfp); void sctp_ulpevent_read_sndrcvinfo(const struct sctp_ulpevent *event, struct msghdr *); void sctp_ulpevent_read_rcvinfo(const struct sctp_ulpevent *event, struct msghdr *); void sctp_ulpevent_read_nxtinfo(const struct sctp_ulpevent *event, struct msghdr *, struct sock *sk); __u16 sctp_ulpevent_get_notification_type(const struct sctp_ulpevent *event); /* Is this event type enabled? */ static inline int sctp_ulpevent_type_enabled(__u16 sn_type, struct sctp_event_subscribe *mask) { char *amask = (char *) mask; return amask[sn_type - SCTP_SN_TYPE_BASE]; } /* Given an event subscription, is this event enabled? */ static inline int sctp_ulpevent_is_enabled(const struct sctp_ulpevent *event, struct sctp_event_subscribe *mask) { __u16 sn_type; int enabled = 1; if (sctp_ulpevent_is_notification(event)) { sn_type = sctp_ulpevent_get_notification_type(event); enabled = sctp_ulpevent_type_enabled(sn_type, mask); } return enabled; } #endif /* __sctp_ulpevent_h__ */ >commite0ab7af9bd1c25e40b9a1dbeb2a634b88267b9d7 (patch) tree0012599b46ccd837c6ce808b808456777f7bb92f /include/uapi/asm-generic/setup.h parentf2a031b66ec6da1512f9db228e4174ad2c7d2688 (diff)
hash_string: Fix zero-length case for !DCACHE_WORD_ACCESS
The self-test was updated to cover zero-length strings; the function needs to be updated, too. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: George Spelvin <linux@sciencehorizons.net> Fixes: fcfd2fbf22d2 ("fs/namei.c: Add hashlen_string() function") Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/uapi/asm-generic/setup.h')