linux-kernel - Re: [PATCH v2 3/5] hisi_acc_vfio_pci: Remove useless function parameter

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Date:   Sat, 24 Sep 2022 09:49:45 +0800
From:   liulongfang <liulongfang@...wei.com>
To:     Shameerali Kolothum Thodi <shameerali.kolothum.thodi@...wei.com>,
        "alex.williamson@...hat.com" <alex.williamson@...hat.com>,
        "jgg@...dia.com" <jgg@...dia.com>
CC:     "cohuck@...hat.com" <cohuck@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linuxarm@...neuler.org" <linuxarm@...neuler.org>
Subject: Re: [PATCH v2 3/5] hisi_acc_vfio_pci: Remove useless function
 parameter

On 2022/9/24 9:45, liulongfang Wrote:
> On 2022/9/23 18:30, Shameerali Kolothum Thodi wrote:
>>
>>
>>> -----Original Message-----
>>> From: liulongfang
>>> Sent: 22 September 2022 09:39
>>> To: alex.williamson@...hat.com; jgg@...dia.com; Shameerali Kolothum
>>> Thodi <shameerali.kolothum.thodi@...wei.com>
>>> Cc: cohuck@...hat.com; linux-kernel@...r.kernel.org;
>>> linuxarm@...neuler.org; liulongfang <liulongfang@...wei.com>
>>> Subject: [PATCH v2 3/5] hisi_acc_vfio_pci: Remove useless function
>>> parameter
>>>
>>> Remove unused function parameters for vf_qm_fun_reset() and
>>> ensure the device is enabled before the reset operation
>>> is performed.
>>>
>>> Signed-off-by: Longfang Liu <liulongfang@...wei.com>
>>
>> Hi Longfang,
>>
>> This one seems to have a merge conflict on top of vfio/next branch.
>> May be better to rebase and send a v3 picking up Jason's R-by as well?
>>
> 
> I merged this patchset to the latest tag version vfio-v6.0-rc5 of the
> vfio/next branch, and there is no merge conflict.
> 
> Which patchset do you refer to as "Jason's R-by"? Can you provide the
> title of this patchset?
> 

I saw Jason's reply, and I reposted a v3 version with Jason's R-by.

>> Thanks,
>> Shameer
>>
Thansk,
Longfang
>>> ---
>>>  drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 8 +++++---
>>>  1 file changed, 5 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
>>> b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
>>> index 0638a8a6b0c1..24c03ff41502 100644
>>> --- a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
>>> +++ b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
>>> @@ -345,8 +345,7 @@ static struct hisi_acc_vf_core_device
>>> *hssi_acc_drvdata(struct pci_dev *pdev)
>>>  			    core_device);
>>>  }
>>>
>>> -static void vf_qm_fun_reset(struct hisi_acc_vf_core_device *hisi_acc_vdev,
>>> -			    struct hisi_qm *qm)
>>> +static void vf_qm_fun_reset(struct hisi_qm *qm)
>>>  {
>>>  	int i;
>>>
>>> @@ -662,7 +661,10 @@ static void hisi_acc_vf_start_device(struct
>>> hisi_acc_vf_core_device *hisi_acc_vd
>>>  	if (hisi_acc_vdev->vf_qm_state != QM_READY)
>>>  		return;
>>>
>>> -	vf_qm_fun_reset(hisi_acc_vdev, vf_qm);
>>> +	/* Make sure the device is enabled */
>>> +	qm_dev_cmd_init(vf_qm);
>>> +
>>> +	vf_qm_fun_reset(vf_qm);
>>>  }
>>>
>>>  static int hisi_acc_vf_load_state(struct hisi_acc_vf_core_device
>>> *hisi_acc_vdev)
>>> --
>>> 2.33.0
>>
>> .
>>