fbeeb55dbb
[ Upstream commit ac0a230f719b02432d8c7eba7615ebd691da86f4 ]
Erhard reports netpoll warnings from sungem:
netpoll_send_skb_on_dev(): eth0 enabled interrupts in poll (gem_start_xmit+0x0/0x398)
WARNING: CPU: 1 PID: 1 at net/core/netpoll.c:370 netpoll_send_skb+0x1fc/0x20c
gem_poll_controller() disables interrupts, which may sleep.
We can't sleep in netpoll, it has interrupts disabled completely.
Strangely, gem_poll_controller() doesn't even poll the completions,
and instead acts as if an interrupt has fired so it just schedules
NAPI and exits. None of this has been necessary for years, since
netpoll invokes NAPI directly.
Fixes:
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.. | ||
Kconfig | ||
Makefile | ||
cassini.c | ||
cassini.h | ||
ldmvsw.c | ||
niu.c | ||
niu.h | ||
sunbmac.c | ||
sunbmac.h | ||
sungem.c | ||
sungem.h | ||
sunhme.c | ||
sunhme.h | ||
sunqe.c | ||
sunqe.h | ||
sunvnet.c | ||
sunvnet_common.c | ||
sunvnet_common.h |