From ff2266cddd69f5e0c9d5121ed9218d2f694406cc Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Mon, 15 Apr 2013 03:27:17 +0000 Subject: net: sctp: remove sctp_ep_common struct member 'malloced' There is actually no need to keep this member in the structure, because after init it's always 1 anyway, thus always kfree called. This seems to be an ancient leftover from the very initial implementation from 2.5 times. Only in case the initialization of an association fails, we leave base.malloced as 0, but we nevertheless kfree it in the error path in sctp_association_new(). Signed-off-by: Daniel Borkmann Acked-by: Vlad Yasevich Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/net/sctp/structs.h') diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 0e0f9d2322e3..3e80eedab17d 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -1174,11 +1174,9 @@ struct sctp_ep_common { /* Some fields to help us manage this object. * refcnt - Reference count access to this object. * dead - Do not attempt to use this object. - * malloced - Do we need to kfree this object? */ atomic_t refcnt; char dead; - char malloced; /* What socket does this endpoint belong to? */ struct sock *sk; -- cgit v1.2.3 From 0022d2dd4d76e0e7d5c241c343a5016fdfa2ad4f Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Mon, 15 Apr 2013 03:27:18 +0000 Subject: net: sctp: minor: make sctp_ep_common's member 'dead' a bool Since dead only holds two states (0,1), make it a bool instead of a 'char', which is more appropriate for its purpose. Signed-off-by: Daniel Borkmann Acked-by: Vlad Yasevich Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/net/sctp/structs.h') diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 3e80eedab17d..e12aa77abc59 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -1176,7 +1176,7 @@ struct sctp_ep_common { * dead - Do not attempt to use this object. */ atomic_t refcnt; - char dead; + bool dead; /* What socket does this endpoint belong to? */ struct sock *sk; -- cgit v1.2.3 From 542c2d832087aa78566be49aa4284779a0a687b3 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 16 Apr 2013 11:07:10 +0000 Subject: net: sctp: sctp_ssnmap: remove 'malloced' element from struct sctp_ssnmap_init() can only be called from sctp_ssnmap_new() where malloced is always set to 1. Thus, when we call sctp_ssnmap_free() the test for map->malloced evaluates always to true. Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/net/sctp/structs.h') diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index e12aa77abc59..3c1bb8dd1e26 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -399,7 +399,6 @@ struct sctp_stream { struct sctp_ssnmap { struct sctp_stream in; struct sctp_stream out; - int malloced; }; struct sctp_ssnmap *sctp_ssnmap_new(__u16 in, __u16 out, -- cgit v1.2.3 From ee16371e6c737684215ee10b4b9756b610d81272 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 16 Apr 2013 11:07:11 +0000 Subject: net: sctp: sctp_inq: remove dead code sctp_inq is never kmalloced, since it's integrated into sctp_ep_common and only initialized from eps and assocs. Therefore, remove the dead code from there. Signed-off-by: Daniel Borkmann Acked-by: Neil Horman Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/net/sctp/structs.h') diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 3c1bb8dd1e26..125a19c73531 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -991,8 +991,6 @@ struct sctp_inq { * messages. */ struct work_struct immediate; - - int malloced; /* Is this structure kfree()able? */ }; void sctp_inq_init(struct sctp_inq *); -- cgit v1.2.3 From 165a4c31278c980862b2c2ddec408cf30341f3ec Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 16 Apr 2013 11:07:12 +0000 Subject: net: sctp: sctp_outq: remove 'malloced' from its struct sctp_outq is embedded into sctp_association, and thus never kmalloced in any way. Also, malloced is always 0, thus kfree() is never called. Therefore, remove that dead piece of code. Signed-off-by: Daniel Borkmann Acked-by: Neil Horman Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/net/sctp/structs.h') diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 125a19c73531..73fd5de4d4cc 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -1059,9 +1059,6 @@ struct sctp_outq { /* Is this structure empty? */ char empty; - - /* Are we kfree()able? */ - char malloced; }; void sctp_outq_init(struct sctp_association *, struct sctp_outq *); -- cgit v1.2.3 From 8fa5df6d210a09241876b74d156c57d833dd057b Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 16 Apr 2013 11:07:15 +0000 Subject: net: sctp: sctp_transport: remove unused variable sctp_transport's member 'malloced' is set to 1, never evaluated and the structure is kfreed anyway. So just remove it. Signed-off-by: Daniel Borkmann Acked-by: Neil Horman Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/net/sctp/structs.h') diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 73fd5de4d4cc..d581af00120b 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -779,10 +779,7 @@ struct sctp_transport { hb_sent:1, /* Is the Path MTU update pending on this tranport */ - pmtu_pending:1, - - /* Is this structure kfree()able? */ - malloced:1; + pmtu_pending:1; /* Has this transport moved the ctsn since we last sacked */ __u32 sack_generation; -- cgit v1.2.3 From 50181c07cbde370986c4925b830ca291a2fc31ab Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 16 Apr 2013 11:07:16 +0000 Subject: net: sctp: sctp_bind_addr: remove dead code The sctp_bind_addr structure has a 'malloced' member that is always set to 0, thus in sctp_bind_addr_free() the kfree() part can never be called. This part is embedded into sctp_ep_common anyway and never alloced. Signed-off-by: Daniel Borkmann Acked-by: Neil Horman Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/net/sctp/structs.h') diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index d581af00120b..64d469845f25 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -1093,8 +1093,6 @@ struct sctp_bind_addr { * peer(s) in INIT and INIT ACK chunks. */ struct list_head address_list; - - int malloced; /* Are we kfree()able? */ }; void sctp_bind_addr_init(struct sctp_bind_addr *, __u16 port); -- cgit v1.2.3 From 3e3251b3f289528732edab386ddf73ac428359b7 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Thu, 18 Apr 2013 21:59:37 +0000 Subject: net: sctp: minor: remove dead code from sctp_packet struct sctp_packet is currently embedded into sctp_transport or sits on the stack as 'singleton' in sctp_outq_flush(). Therefore, its member 'malloced' is always 0, thus a kfree() is never called. Because of that, we can just remove this code. Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/net/sctp/structs.h') diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 64d469845f25..1bd4c4144fe8 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -714,8 +714,7 @@ struct sctp_packet { has_sack:1, /* This packet contains a SACK chunk. */ has_auth:1, /* This packet contains an AUTH chunk */ has_data:1, /* This packet contains at least 1 DATA chunk */ - ipfragok:1, /* So let ip fragment this packet */ - malloced:1; /* Is it malloced? */ + ipfragok:1; /* So let ip fragment this packet */ }; struct sctp_packet *sctp_packet_init(struct sctp_packet *, -- cgit v1.2.3