Add a printk to show when xleft is non-zero in sl_encaps. The idea is to see whether a previous SLIP frame failed to be fully transmitted.
Signed-off-by: Dean Jenkins <[email protected]> --- drivers/net/slip/slip.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c index f7303e0..e2eff84 100644 --- a/drivers/net/slip/slip.c +++ b/drivers/net/slip/slip.c @@ -395,6 +395,10 @@ static void sl_encaps(struct slip *sl, unsigned char *icp, int len) #endif count = slip_esc(p, sl->xbuff, len); + if (sl->xleft) + printk(KERN_ERR "%s: ERROR: xleft is non-zero %d\n", + __func__, sl->xleft); + /* ensure xleft set by the previous SLIP frame is zero for this frame * otherwise slip_write_wakeup() can cause a recursive loop. */ -- 1.8.1.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
