linux-kernel - Re: [PATCH] crypto: cavium: cpt: Replace mdelay with msleep in cpt_device

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Date:   Sat, 24 Mar 2018 00:04:11 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Jia-Ju Bai <baijiaju1990@...il.com>
Cc:     george.cherian@...ium.com, davem@...emloft.net,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: cavium: cpt: Replace mdelay with msleep in
 cpt_device_init

On Sun, Mar 18, 2018 at 10:50:38PM +0800, Jia-Ju Bai wrote:
> cpt_device_init() is never called in atomic context.
> 
> The call chain ending up at cpt_device_init() is:
> [1] cpt_device_init() <- cpt_probe()
> cpt_probe() is only set as ".probe" in pci_driver structure 
> "cpt_pci_driver".
> 
> Despite never getting called from atomic context, cpt_device_init() calls
> mdelay(100), i.e. busy wait for 100ms.
> That is not necessary and can be replaced with msleep to 
> avoid busy waiting.
> 
> This is found by a static analysis tool named DCNS written by myself.
> 
> Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com>

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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