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| H A D | sch_taprio.c | diff b5b73b26b3ca34574124ed7ae9c5ba8391a7f176 Wed Sep 09 19:03:11 CDT 2020 Vinicius Costa Gomes <vinicius.gomes@intel.com> taprio: Fix allowing too small intervals
It's possible that the user specifies an interval that couldn't allow
any packet to be transmitted. This also avoids the issue of the
hrtimer handler starving the other threads because it's running too
often.
The solution is to reject interval sizes that according to the current
link speed wouldn't allow any packet to be transmitted.
Reported-by: syzbot+8267241609ae8c23b248@syzkaller.appspotmail.com
Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler")
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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