Revision 68ce6688a5baefde30914fc07fc27292dbbe8320 authored by Vladimir Oltean on 28 September 2019, 23:01:39 UTC, committed by David S. Miller on 01 October 2019, 01:32:20 UTC
The speed divisor is used in a context expecting an s64, but it is
evaluated using 32-bit arithmetic.
To avoid that happening, instead of multiplying by 1,000,000 in the
first place, simplify the fraction and do a standard 32 bit division
instead.
Fixes: f04b514c0ce2 ("taprio: Set default link speed to 10 Mbps in taprio_set_picos_per_byte")
Reported-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 68501df
.cocciconfig
[spatch]
options = --timeout 200
options = --use-gitgrep
Computing file changes ...
