linux-kernel - [BUG] atlx: a possible sleep-in-atomic bug in atl1

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Message-ID: <d9660caa-3873-b99d-c967-8e139d2a96da@gmail.com>
Date:   Wed, 13 Dec 2017 18:07:53 +0800
From:   Jia-Ju Bai <baijiaju1990@...il.com>
To:     jcliburn@...il.com, chris.snook@...il.com, davem@...emloft.net,
        geliangtang@...il.com, keescook@...omium.org,
        khoroshilov@...ras.ru, edumazet@...gle.com
Cc:     netdev@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [BUG] atlx: a possible sleep-in-atomic bug in atl1_intr

The driver may sleep in the interrupt handler.
The function call path is:
atl1_intr (interrupt handler)
   atlx_irq_disable
     synchronize_irq --> may sleep

I do not find a good way to fix it, so I only report.
This possible bug is found by my static analysis tool (DSAC) and checked 
by my code review.


Thanks,
Jia-Ju Bai