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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: d28d6d2e37 ("net: lan966x: add port module support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Horatiu Vultur 2022-01-25 12:48:15 +01:00 committed by David S. Miller
parent 8199d0c6ad
commit b6ab149654
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ethernet/microchip/lan966x/lan966x_main.c
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@ -182,9 +182,9 @@ static int lan966x_port_inj_ready(struct lan966x *lan966x, u8 grp)
{ {
u32 val; 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), QS_INJ_STATUS_FIFO_RDY_GET(val) & BIT(grp),
READL_SLEEP_US, READL_TIMEOUT_US); READL_SLEEP_US, READL_TIMEOUT_US);
} }
static int lan966x_port_ifh_xmit(struct sk_buff *skb, static int lan966x_port_ifh_xmit(struct sk_buff *skb,