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sctp: drop __packed from almost all SCTP structures

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__packed is considered harmful as it potentially generates code that
doesn't perform well and its usage should be avoided as much as
possible.

This patch drops __packed from all SCTP structures except one, which is
sctp_signed_cookie. In there it's required, as per changelog on
commit 9834a2bb49 ("[SCTP]: Fix sctp_cookie alignment in the packet.").

After this patch, no alignment changes neither in x86 or x86_64 and
no exceptions were noticed during testing on both archs.

Code size for SCTP module also didn't change with this patch.

Cc: David Miller <davem@davemloft.net>
Cc: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marcelo Ricardo Leitner 2017-02-07 11:37:56 -02:00 • committed by David S. Miller
parent bb580ad698
commit 85c727b594
2 changed files with 41 additions and 41 deletions
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2
include/net/sctp/structs.h
View file

@ -374,7 +374,7 @@ typedef struct sctp_sender_hb_info {
union sctp_addr daddr;
unsigned long sent_at;
__u64 hb_nonce;
} __packed sctp_sender_hb_info_t;
} sctp_sender_hb_info_t;
struct sctp_stream *sctp_stream_new(__u16 incnt, __u16 outcnt, gfp_t gfp);
void sctp_stream_free(struct sctp_stream *stream);