can: flexcan: flexcan_irq_state(): only read timestamp if needed

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The function flexcan_irq_state() checks the controller for CAN state
changes and pushes a skb with the new state and a timestamp into the
rx-offload framework.

This patch optimizes the function by only reading the timestamp, if a
state change is detected.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

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Marc Kleine-Budde 2019-10-09 15:15:37 +02:00

parent a4721f27b9

commit 58ed8e77d3

1 changed files with 2 additions and 2 deletions

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4

drivers/net/can/flexcan.c

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