Commit b6ab1496 authored by Horatiu Vultur's avatar Horatiu Vultur Committed by David S. Miller
Browse files

net: lan966x: Fix sleep in atomic context when injecting frames 



On lan966x, when injecting a frame it was polling the register
QS_INJ_STATUS to see if it can continue with the injection of the frame.
The problem was that it was using readx_poll_timeout which could sleep
in atomic context.
This patch fixes this issue by using readx_poll_timeout_atomic.

Fixes: d28d6d2e ("net: lan966x: add port module support")
Signed-off-by: default avatarHoratiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8199d0c6

drivers/net/ethernet/microchip/lan966x/lan966x_main.c

+3 −3
Original line number Diff line number Diff line
@@ -182,7 +182,7 @@ static int lan966x_port_inj_ready(struct lan966x *lan966x, u8 grp) 
{

	u32 val;



	return readx_poll_timeout(lan966x_port_inj_status, lan966x, val,

	return readx_poll_timeout_atomic(lan966x_port_inj_status, lan966x, val,

					 QS_INJ_STATUS_FIFO_RDY_GET(val) & BIT(grp),

					 READL_SLEEP_US, READL_TIMEOUT_US);

}