[RFC 2/4] net/tls/tls_sw: use the record size limit specified

[Wilfred Mallawa]

On Tue, 2025-07-29 at 17:13 +0900, Damien Le Moal wrote:
> On 7/29/25 11:41, Wilfred Mallawa wrote:
> > From: Wilfred Mallawa <wilfred.mallawa at wdc.com>
> > 
> > Currently, for tls_sw, the kernel uses the default 16K
> > TLS_MAX_PAYLOAD_SIZE for records. However, if an endpoint has
> > specified
> > a record size much lower than that, it is currently not respected.
> 
> Remove "much". Lower is lower and we have to respect it, even if it
> is 1B.
> 
> > This patch adds support to using the record size limit specified by
> > an
> > endpoint if it has been set.
> 
> s/to using/for using
> 
> > 
> > Signed-off-by: Wilfred Mallawa <wilfred.mallawa at wdc.com>
> 
> > @@ -1045,6 +1046,13 @@ static int tls_sw_sendmsg_locked(struct sock
> > *sk, struct msghdr *msg,
> >  		}
> >  	}
> >  
> > +	if (tls_ctx->tls_record_size_limit > 0) {
> > +		tls_record_size_limit = min(tls_ctx-
> > >tls_record_size_limit,
> > +					    TLS_MAX_PAYLOAD_SIZE);
> > +	} else {
> > +		tls_record_size_limit = TLS_MAX_PAYLOAD_SIZE;
> > +	}
> 
> You can simplify this with:
> 
> 	tls_record_size_limit =
> 		min_not_zero(tls_ctx->tls_record_size_limit,
> 			     TLS_MAX_PAYLOAD_SIZE);
> 
Hey Damien,

Thanks for the feedback! Will amend for V2.

Regards,
Wilfred
> 
>