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[PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner, save 1616 bytes

Started byDenys Vlasenko <dvlasenk@redhat.com>
First post2017-06-21 18:30 +0200
Last post2017-06-21 21:30 +0200
Articles 4 — 4 participants

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  [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner, save 1616 bytes Denys Vlasenko <dvlasenk@redhat.com> - 2017-06-21 18:30 +0200
    Re: [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner,  save 1616 bytes Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> - 2017-06-21 19:00 +0200
    Re: [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner,  save 1616 bytes Joe Perches <joe@perches.com> - 2017-06-21 21:20 +0200
      Re: [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner,  save 1616 bytes David Miller <davem@davemloft.net> - 2017-06-21 21:30 +0200

#1671770 — [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner, save 1616 bytes

FromDenys Vlasenko <dvlasenk@redhat.com>
Date2017-06-21 18:30 +0200
Subject[PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner, save 1616 bytes
Message-ID<tUQG0-8uH-55@gated-at.bofh.it>
This function compiles to 147 bytes of machine code. 13 callsites.

I'm no expert on SCTP events, but quick reading of SCTP docs tells me that
SCTP events are not happening on every packet.
They are ASSOC_CHANGE, PEER_ADDR_CHANGE, REMOTE_ERROR and such.
Does not look performance critical.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
CC: Vlad Yasevich <vyasevich@gmail.com>
CC: Neil Horman <nhorman@tuxdriver.com>
CC: David Miller <davem@davemloft.net>
CC: linux-sctp@vger.kernel.org
CC: netdev@vger.kernel.org
CC: linux-kernel@vger.kernel.org
---
 net/sctp/ulpevent.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index ec2b3e0..049aa5a 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -88,7 +88,7 @@ int sctp_ulpevent_is_notification(const struct sctp_ulpevent *event)
 /* Hold the association in case the msg_name needs read out of
  * the association.
  */
-static inline void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
+static void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
 					   const struct sctp_association *asoc)
 {
 	struct sctp_chunk *chunk = event->chunk;
-- 
1.8.3.1

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#1671808 — Re: [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner, save 1616 bytes

FromMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Date2017-06-21 19:00 +0200
SubjectRe: [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner, save 1616 bytes
Message-ID<tUR8Z-eq-17@gated-at.bofh.it>
In reply to#1671770
On Wed, Jun 21, 2017 at 06:28:09PM +0200, Denys Vlasenko wrote:
> This function compiles to 147 bytes of machine code. 13 callsites.
> 
> I'm no expert on SCTP events, but quick reading of SCTP docs tells me that
> SCTP events are not happening on every packet.
> They are ASSOC_CHANGE, PEER_ADDR_CHANGE, REMOTE_ERROR and such.
> Does not look performance critical.
> 
> Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
> CC: Vlad Yasevich <vyasevich@gmail.com>
> CC: Neil Horman <nhorman@tuxdriver.com>
> CC: David Miller <davem@davemloft.net>
> CC: linux-sctp@vger.kernel.org
> CC: netdev@vger.kernel.org
> CC: linux-kernel@vger.kernel.org
> ---
>  net/sctp/ulpevent.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
> index ec2b3e0..049aa5a 100644
> --- a/net/sctp/ulpevent.c
> +++ b/net/sctp/ulpevent.c
> @@ -88,7 +88,7 @@ int sctp_ulpevent_is_notification(const struct sctp_ulpevent *event)
>  /* Hold the association in case the msg_name needs read out of
>   * the association.
>   */
> -static inline void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
> +static void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
>  					   const struct sctp_association *asoc)

Please fix the alignment here  --------^
the const should start after the '(' column, as it was before the patch.
Thanks

>  {
>  	struct sctp_chunk *chunk = event->chunk;
> -- 
> 1.8.3.1
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-sctp" in
> the body of a message to majordomo@vger.kernel.org
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> 

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#1671965 — Re: [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner, save 1616 bytes

FromJoe Perches <joe@perches.com>
Date2017-06-21 21:20 +0200
SubjectRe: [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner, save 1616 bytes
Message-ID<tUTku-22n-15@gated-at.bofh.it>
In reply to#1671770
On Wed, 2017-06-21 at 18:28 +0200, Denys Vlasenko wrote:
> This function compiles to 147 bytes of machine code. 13 callsites.
> 
> I'm no expert on SCTP events, but quick reading of SCTP docs tells me that
> SCTP events are not happening on every packet.
> They are ASSOC_CHANGE, PEER_ADDR_CHANGE, REMOTE_ERROR and such.
> Does not look performance critical.

Thanks.

But:

> diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
[]
> @@ -88,7 +88,7 @@ int sctp_ulpevent_is_notification(const struct sctp_ulpevent *event)
>  /* Hold the association in case the msg_name needs read out of
>   * the association.
>   */
> -static inline void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
> +static void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
>  					   const struct sctp_association *asoc)
>  {
>  	struct sctp_chunk *chunk = event->chunk;

This now misaligns the next line after the inline removal.

Can you please run your patches through checkpatch?

$ ./scripts/checkpatch.pl -
CHECK: Alignment should match open parenthesis
#86: FILE: net/sctp/ulpevent.c:92:
+static void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
 					   const struct sctp_association *asoc)

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#1671979 — Re: [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner, save 1616 bytes

FromDavid Miller <davem@davemloft.net>
Date2017-06-21 21:30 +0200
SubjectRe: [PATCH] net/sctp/ulpevent.c: Deinline sctp_ulpevent_set_owner, save 1616 bytes
Message-ID<tUTub-26o-41@gated-at.bofh.it>
In reply to#1671965
From: Joe Perches <joe@perches.com>
Date: Wed, 21 Jun 2017 12:19:10 -0700

> On Wed, 2017-06-21 at 18:28 +0200, Denys Vlasenko wrote:
>> This function compiles to 147 bytes of machine code. 13 callsites.
>> 
>> I'm no expert on SCTP events, but quick reading of SCTP docs tells me that
>> SCTP events are not happening on every packet.
>> They are ASSOC_CHANGE, PEER_ADDR_CHANGE, REMOTE_ERROR and such.
>> Does not look performance critical.
> 
> Thanks.
> 
> But:
> 
>> diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
> []
>> @@ -88,7 +88,7 @@ int sctp_ulpevent_is_notification(const struct sctp_ulpevent *event)
>>  /* Hold the association in case the msg_name needs read out of
>>   * the association.
>>   */
>> -static inline void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
>> +static void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
>>  					   const struct sctp_association *asoc)
>>  {
>>  	struct sctp_chunk *chunk = event->chunk;
> 
> This now misaligns the next line after the inline removal.

Agreed, the argument indenation must be fixed.

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