linux-kernel - Re: [PATCH] wd719x: pass GFP_ATOMIC instead of GFP

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Message-ID: <20190529062316.GA3997@infradead.org>
Date:   Tue, 28 May 2019 23:23:16 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Hariprasad Kelam <hariprasad.kelam@...il.com>
Cc:     "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] wd719x: pass GFP_ATOMIC instead of GFP_KERNEL

On Wed, May 29, 2019 at 07:05:40AM +0530, Hariprasad Kelam wrote:
> wd719x_chip_init is getting called in interrupt disabled
> mode(spin_lock_irqsave) , so we need to GFP_ATOMIC instead
> of GFP_KERNEL.
> 
> Issue identified by coccicheck

I don't think request_firmware is any more happy being called under
a spinlock.  The right fix is to not hold a spinlock over the board
initialization.