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Date:   Fri, 27 Apr 2018 18:30:42 -0500
From:   Alan Tull <>
To:     Florian Fainelli <>
Cc:     Moritz Fischer <>,
        linux-kernel <>,
        Jonathan Corbet <>,,, Michal Simek <>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
Subject: Re: [PATCH 2/4] fpga: manager: change api, don't use drvdata

On Fri, Apr 27, 2018 at 1:26 PM, Florian Fainelli <> wrote:
> On 04/26/2018 06:26 PM, Moritz Fischer wrote:
>> From: Alan Tull <>
>> Change fpga_mgr_register to not set or use drvdata.  This supports
>> the case where a PCIe device has more than one manager.
>> Add fpga_mgr_create/free functions.  Change fpga_mgr_register and
>> fpga_mgr_unregister functions to take the mgr struct as their only
>> parameter.
>>   struct fpga_manager *fpga_mgr_create(struct device *dev,
>>                 const char *name,
>>                 const struct fpga_manager_ops *mops,
>>                 void *priv);
>>   void fpga_mgr_free(struct fpga_manager *mgr);
>>   int fpga_mgr_register(struct fpga_manager *mgr);
>>   void fpga_mgr_unregister(struct fpga_manager *mgr);
>> Update the drivers that call fpga_mgr_register with the new API.
> Apologies for chiming in so late, this commit does not make it clear
> that fpga_mgr_unregister() now also free the 'mgr' argument by calling
> fpga_mgr_free(), this is kind of detail, but an API should make that
> clear IMHO.

If people follow the usage information, in
Documentation/fpga/fpga-mgr.txt, they'll do the right thing.  But I
can add a patch that clarifies the description of fpga_mgr_unregister
in fpga-mgr.c that it "unregisters and frees" the manager.

> Thanks
> --
> Florian

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