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* [PATCH] Remove some unnecessary checks on socket restart
@ 2009-10-01 21:40 Dan Smith
       [not found] ` <1254433228-20882-1-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
  0 siblings, 1 reply; 3+ messages in thread
From: Dan Smith @ 2009-10-01 21:40 UTC (permalink / raw)
  To: containers-qjLDD68F18O7TbgM5vRIOg

These two checks are removed because they cannot be true because of the
unsigned nature of the values being examined

Signed-off-by: Dan Smith <danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Cc: serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org
Cc: orenl-RdfvBDnrOixBDgjK7y7TUQ@public.gmane.org
---
 net/checkpoint.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/checkpoint.c b/net/checkpoint.c
index a11ec7a..017c7f8 100644
--- a/net/checkpoint.c
+++ b/net/checkpoint.c
@@ -480,12 +480,10 @@ static int sock_cptrst(struct ckpt_ctx *ctx, struct sock *sk,
 		ckpt_debug("socket/sock in inconsistent state: %i/%i",
 			   h->socket.state, h->sock.state);
 		return -EINVAL;
-	} else if ((h->sock.state < TCP_ESTABLISHED) ||
-		   (h->sock.state >= TCP_MAX_STATES)) {
+	} else if (h->sock.state >= TCP_MAX_STATES) {
 		ckpt_debug("sock in invalid state: %i", h->sock.state);
 		return -EINVAL;
-	} else if ((h->socket.state < SS_FREE) ||
-		   (h->socket.state > SS_DISCONNECTING)) {
+	} else if (h->socket.state > SS_DISCONNECTING) {
 		ckpt_debug("socket in invalid state: %i",
 			   h->socket.state);
 		return -EINVAL;
-- 
1.6.0.4

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH] Remove some unnecessary checks on socket restart
       [not found] ` <1254433228-20882-1-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
@ 2009-10-01 21:47   ` Serge E. Hallyn
       [not found]     ` <20091001214749.GA4343-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
  0 siblings, 1 reply; 3+ messages in thread
From: Serge E. Hallyn @ 2009-10-01 21:47 UTC (permalink / raw)
  To: Dan Smith; +Cc: containers-qjLDD68F18O7TbgM5vRIOg

Quoting Dan Smith (danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org):
> These two checks are removed because they cannot be true because of the
> unsigned nature of the values being examined
> 
> Signed-off-by: Dan Smith <danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
> Cc: serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org
> Cc: orenl-RdfvBDnrOixBDgjK7y7TUQ@public.gmane.org
> ---
>  net/checkpoint.c |    6 ++----
>  1 files changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/net/checkpoint.c b/net/checkpoint.c
> index a11ec7a..017c7f8 100644
> --- a/net/checkpoint.c
> +++ b/net/checkpoint.c
> @@ -480,12 +480,10 @@ static int sock_cptrst(struct ckpt_ctx *ctx, struct sock *sk,
>  		ckpt_debug("socket/sock in inconsistent state: %i/%i",
>  			   h->socket.state, h->sock.state);
>  		return -EINVAL;
> -	} else if ((h->sock.state < TCP_ESTABLISHED) ||
> -		   (h->sock.state >= TCP_MAX_STATES)) {
> +	} else if (h->sock.state >= TCP_MAX_STATES) {

No, TCP_ESTABLISHED is defined to 1 isn't it?

>  		ckpt_debug("sock in invalid state: %i", h->sock.state);
>  		return -EINVAL;
> -	} else if ((h->socket.state < SS_FREE) ||
> -		   (h->socket.state > SS_DISCONNECTING)) {
> +	} else if (h->socket.state > SS_DISCONNECTING) {

Yes, thanks.

>  		ckpt_debug("socket in invalid state: %i",
>  			   h->socket.state);
>  		return -EINVAL;
> -- 
> 1.6.0.4

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] Remove some unnecessary checks on socket restart
       [not found]     ` <20091001214749.GA4343-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
@ 2009-10-01 22:01       ` Dan Smith
  0 siblings, 0 replies; 3+ messages in thread
From: Dan Smith @ 2009-10-01 22:01 UTC (permalink / raw)
  To: Serge E. Hallyn; +Cc: containers-qjLDD68F18O7TbgM5vRIOg

SH> No, TCP_ESTABLISHED is defined to 1 isn't it?

Argh.  Yes, it is, even though it's the first one in the enum.  How
annoying.

-- 
Dan Smith
IBM Linux Technology Center
email: danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2009-10-01 22:01 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2009-10-01 21:40 [PATCH] Remove some unnecessary checks on socket restart Dan Smith
     [not found] ` <1254433228-20882-1-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-10-01 21:47   ` Serge E. Hallyn
     [not found]     ` <20091001214749.GA4343-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-10-01 22:01       ` Dan Smith

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