6pack: drop sixpack::buffsize

It's never read.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andreas Koensgen <ajk@comnets.uni-bremen.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: linux-hams@vger.kernel.org
Cc: netdev@vger.kernel.org
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20240808103549.429349-10-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Jiri Slaby (SUSE)

drivers/net/hamradio/6pack.c

@@ -100,8 +100,6 @@ struct sixpack {
 	unsigned int		rx_count_cooked;
 	spinlock_t		rxlock;
 
-	int			buffsize;       /* Max buffers sizes */
-
 	unsigned long		flags;		/* Flag values/ mode etc */
 	unsigned char		mode;		/* 6pack mode */
 
@@ -584,7 +582,6 @@ static int sixpack_open(struct tty_struct *tty)
 
 	sp->xbuff	= xbuff;
 
-	sp->buffsize	= len;
 	sp->rcount	= 0;
 	sp->rx_count	= 0;
 	sp->rx_count_cooked = 0;