Queues should be empty when released, if not, there is a safety valve.
Make sure the queue is usable after it triggers.
--- a/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c
+++ b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c
@@ -265,6 +265,11 @@ void qmgr_release_queue(unsigned int queue)
qmgr_queue_descs[queue], queue);
qmgr_queue_descs[queue][0] = '\x0';
#endif
+
+ while ((addr = qmgr_get_entry(queue)))
+ printk(KERN_ERR "qmgr: released queue %i not empty: 0x%08X\n",
+ queue, addr);
+
__raw_writel(0, &qmgr_regs->sram[queue]);
used_sram_bitmap[0] &= ~mask[0];
@@ -275,10 +280,6 @@ void qmgr_release_queue(unsigned int queue)
spin_unlock_irq(&qmgr_lock);
module_put(THIS_MODULE);
-
- while ((addr = qmgr_get_entry(queue)))
- printk(KERN_ERR "qmgr: released queue %i not empty: 0x%08X\n",
- queue, addr);
}
static int qmgr_init(void)
--
Krzysztof Halasa