Hi, To acitvate a softirq, the raise_softirq() will be invorked. In this function, in_interruput() function is called, and if we get value 1, raise_softirq() will return simply. According to ULK3, this situation indicates either that raise_softirq() has been invoked in interrupt context, or that the softirqs are currently disabled. For the latter, namely that the softirqs are currently disabled, I have no idea about it. How can we know?
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