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net: ppp: access ppp->nextseq only if CONFIG_PPP_MULTILINK is defined

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Commit d762d03849 resets the counter holding the
next sequence number for multilink PPP fragments to zero whenever the
SC_MULTILINK flag is set. However, this counter only exists if
CONFIG_PPP_MULTILINK is defined. Consequently, the new code has to be enclosed
within #ifdef CONFIG_PPP_MULTILINK ... #endif.

Signed-off-by: Christoph Schulz <develop@kristov.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Schulz 2014-07-16 23:41:26 +02:00 committed by David S. Miller
parent ed410ecf71
commit a9f559c37b
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ppp/ppp_generic.c
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@ -655,8 +655,10 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
ppp_lock(ppp);
cflags = ppp->flags & ~val;
#ifdef CONFIG_PPP_MULTILINK
if (!(ppp->flags & SC_MULTILINK) && (val & SC_MULTILINK))
ppp->nextseq = 0;
#endif
ppp->flags = val & SC_FLAG_BITS;
ppp_unlock(ppp);
if (cflags & SC_CCP_OPEN)