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authorIshizaki Kou <kou.ishizaki@toshiba.co.jp>2007-07-09 23:17:42 (GMT)
committerJeff Garzik <jeff@garzik.org>2007-07-10 16:22:30 (GMT)
commit7a627558214664f0e071b2652fc37e4d7d3dce32 (patch)
treeccaa169e29df4f8ea82716a2489ac7451edf6efc /drivers/net/mipsnet.c
parentb8a1fcee26126b566d9e28ba80c643a7a10543eb (diff)
downloadlinux-fsl-qoriq-7a627558214664f0e071b2652fc37e4d7d3dce32.tar.xz
spidernet: improve interrupt handling
We intend this patch to improve spidernet interrupt handling to be more strict. We had following problem and this patch solves it. -when CONFIG_DEBUG_SHIRQ=y, request_irq() calls handler(). -when spider_net_open() is called, it calls request_irq() which calls spider_net_interrupt(). -if some specific interrupt bit is set at this timing, it calls netif_rx_schedule() and spider_net_poll() is scheduled. -spider_net_open() calls netif_poll_enable() which clears the bit __LINK_STATE_RX_SCHED. -when spider_net_poll() is called, it calls netif_rx_complete() which causes BUG_ON() because __LINK_STATE_RX_SCHED is not set. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/mipsnet.c')
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