Commit e0f0be7d authored May 28, 2019 by Young Xiao Committed by Jeff Kirsher Jun 26, 2019

ixgbevf: fix possible divide by zero in ixgbevf_update_itr



The next call to ixgbevf_update_itr will continue to dynamically
update ITR.

Copy from commit bdbeefe8 ("ixgbe: fix possible divide by zero in
ixgbe_update_itr")

Signed-off-by: Young Xiao <92siuyang@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

parent 655c9141

drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1423,6 +1423,9 @@ static void ixgbevf_update_itr(struct ixgbevf_q_vector *q_vector,
		*/
		/* what was last interrupt timeslice? */
		timepassed_us = q_vector->itr >> 2;
		if (timepassed_us == 0)
		return;

		bytes_perint = bytes / timepassed_us; /* bytes/usec */

		switch (itr_setting) {

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