linux-kernel - RE: [Intel-wired-lan] [PATCH 1/2] net: intel: igb: Replace GFP_ATOMIC with GFP_KERNEL in igb_sw

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Message-ID: <309B89C4C689E141A5FF6A0C5FB2118B9655021D@ORSMSX101.amr.corp.intel.com>
Date:   Thu, 23 Aug 2018 21:04:08 +0000
From:   "Brown, Aaron F" <aaron.f.brown@...el.com>
To:     Jia-Ju Bai <baijiaju1990@...il.com>,
        "Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [Intel-wired-lan] [PATCH 1/2] net: intel: igb: Replace
 GFP_ATOMIC with GFP_KERNEL in igb_sw_init()

> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@...osl.org] On
> Behalf Of Jia-Ju Bai
> Sent: Friday, July 27, 2018 1:05 AM
> To: Kirsher, Jeffrey T <jeffrey.t.kirsher@...el.com>
> Cc: netdev@...r.kernel.org; Jia-Ju Bai <baijiaju1990@...il.com>; intel-
> wired-lan@...ts.osuosl.org; linux-kernel@...r.kernel.org
> Subject: [Intel-wired-lan] [PATCH 1/2] net: intel: igb: Replace GFP_ATOMIC
> with GFP_KERNEL in igb_sw_init()
> 
> igb_sw_init() is never called in atomic context.
> It calls kzalloc() and kcalloc() with GFP_ATOMIC, which is not necessary.
> GFP_ATOMIC can be replaced with GFP_KERNEL.
> 
> This is found by a static analysis tool named DCNS written by myself.
> 
> Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com>
> ---
>  drivers/net/ethernet/intel/igb/igb_main.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Tested-by: Aaron Brown <aaron.f.brown@...el.com>