[PATCH net-next 7/7] net/macsonic: Remove interrupt handler wrapper
From: Finn Thain <hidden>
Date: 2020-02-10 21:27:15
Also in:
lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
On m68k, local irqs remain enabled while interrupt handlers execute.
Therefore the macsonic driver has had to disable interrupts to avoid
re-entering sonic_interrupt().
As of commit 865ad2f2201d ("net/sonic: Add mutual exclusion for accessing
shared state"), sonic_interrupt() became re-entrant, and its wrapper
became redundant.
Tested-by: Stan Johnson <redacted>
Signed-off-by: Finn Thain <redacted>
---
drivers/net/ethernet/natsemi/macsonic.c | 19 ++++---------------
1 file changed, 4 insertions(+), 15 deletions(-)
diff --git a/drivers/net/ethernet/natsemi/macsonic.c b/drivers/net/ethernet/natsemi/macsonic.c
index 0f4d0c25d626..1b5559aacb38 100644
--- a/drivers/net/ethernet/natsemi/macsonic.c
+++ b/drivers/net/ethernet/natsemi/macsonic.c@@ -114,17 +114,6 @@ static inline void bit_reverse_addr(unsigned char addr[6]) addr[i] = bitrev8(addr[i]); } -static irqreturn_t macsonic_interrupt(int irq, void *dev_id) -{ - irqreturn_t result; - unsigned long flags; - - local_irq_save(flags); - result = sonic_interrupt(irq, dev_id); - local_irq_restore(flags); - return result; -} - static int macsonic_open(struct net_device* dev) { int retval;
@@ -135,12 +124,12 @@ static int macsonic_open(struct net_device* dev) dev->name, dev->irq); goto err; } - /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes - * in at priority level 3. However, we sometimes get the level 2 inter- - * rupt as well, which must prevent re-entrance of the sonic handler. + /* Under the A/UX interrupt scheme, the onboard SONIC interrupt gets + * moved from level 2 to level 3. Unfortunately we still get some + * level 2 interrupts so register the handler for both. */ if (dev->irq == IRQ_AUTO_3) { - retval = request_irq(IRQ_NUBUS_9, macsonic_interrupt, 0, + retval = request_irq(IRQ_NUBUS_9, sonic_interrupt, 0, "sonic", dev); if (retval) { printk(KERN_ERR "%s: unable to get IRQ %d.\n",
--
2.24.1