netdev - Re: [Patch net] sctp: use KMALLOC_MAX_SIZE instead of its own MAX_KMALLOC

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Date:	Sun, 3 Mar 2013 22:52:26 -0500
From:	Neil Horman <nhorman@...driver.com>
To:	Cong Wang <amwang@...hat.com>
Cc:	netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
	Vlad Yasevich <vyasevich@...il.com>,
	Sridhar Samudrala <sri@...ibm.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [Patch net] sctp: use KMALLOC_MAX_SIZE instead of its own
 MAX_KMALLOC_SIZE

On Mon, Mar 04, 2013 at 10:28:27AM +0800, Cong Wang wrote:
> From: Cong Wang <amwang@...hat.com>
> 
> Don't definite its own MAX_KMALLOC_SIZE, use the one
> defined in mm.
> 
> Cc: Vlad Yasevich <vyasevich@...il.com>
> Cc: Sridhar Samudrala <sri@...ibm.com>
> Cc: Neil Horman <nhorman@...driver.com>
> Cc: David S. Miller <davem@...emloft.net>
> Signed-off-by: Cong Wang <amwang@...hat.com>
> 
Acked-by: Neil Horman <nhorman@...driver.com>

> ---
> diff --git a/net/sctp/ssnmap.c b/net/sctp/ssnmap.c
> index 442ad4e..825ea94 100644
> --- a/net/sctp/ssnmap.c
> +++ b/net/sctp/ssnmap.c
> @@ -41,8 +41,6 @@
>  #include <net/sctp/sctp.h>
>  #include <net/sctp/sm.h>
>  
> -#define MAX_KMALLOC_SIZE	131072
> -
>  static struct sctp_ssnmap *sctp_ssnmap_init(struct sctp_ssnmap *map, __u16 in,
>  					    __u16 out);
>  
> @@ -65,7 +63,7 @@ struct sctp_ssnmap *sctp_ssnmap_new(__u16 in, __u16 out,
>  	int size;
>  
>  	size = sctp_ssnmap_size(in, out);
> -	if (size <= MAX_KMALLOC_SIZE)
> +	if (size <= KMALLOC_MAX_SIZE)
>  		retval = kmalloc(size, gfp);
>  	else
>  		retval = (struct sctp_ssnmap *)
> @@ -82,7 +80,7 @@ struct sctp_ssnmap *sctp_ssnmap_new(__u16 in, __u16 out,
>  	return retval;
>  
>  fail_map:
> -	if (size <= MAX_KMALLOC_SIZE)
> +	if (size <= KMALLOC_MAX_SIZE)
>  		kfree(retval);
>  	else
>  		free_pages((unsigned long)retval, get_order(size));
> @@ -124,7 +122,7 @@ void sctp_ssnmap_free(struct sctp_ssnmap *map)
>  		int size;
>  
>  		size = sctp_ssnmap_size(map->in.len, map->out.len);
> -		if (size <= MAX_KMALLOC_SIZE)
> +		if (size <= KMALLOC_MAX_SIZE)
>  			kfree(map);
>  		else
>  			free_pages((unsigned long)map, get_order(size));
> 
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