net: ethernet: mediatek: ppe: fix busy wait loop

Browse source

The intention is for the loop to timeout if the body does not succeed.
The current logic calls time_is_before_jiffies(timeout) which is false
until after the timeout, so the loop body never executes.

Fix by using readl_poll_timeout as a more standard and less error-prone
solution.

Fixes: ba37b7caf1 ("net: ethernet: mtk_eth_soc: add support for initializing the PPE")
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Cc: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Ilya Lipnitskiy 2021-04-15 17:37:48 -07:00 • committed by David S. Miller

parent c133acf38c

commit c5d66587b8

2 changed files with 10 additions and 11 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

20

drivers/net/ethernet/mediatek/mtk_ppe.c

View file

1

drivers/net/ethernet/mediatek/mtk_ppe.h

View file