linux-kernel - Re: [PATCH 5/6] scsi: ufs: show ufs part info in error case

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Date:   Tue, 22 Sep 2020 13:30:36 +0800
From:   Can Guo <cang@...eaurora.org>
To:     Jaegeuk Kim <jaegeuk@...nel.org>
Cc:     Bean Huo <huobean@...il.com>, linux-kernel@...r.kernel.org,
        linux-scsi@...r.kernel.org, kernel-team@...roid.com,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>
Subject: Re: [PATCH 5/6] scsi: ufs: show ufs part info in error case

On 2020-09-18 12:13, Jaegeuk Kim wrote:
> On 09/17, Can Guo wrote:
>> On 2020-09-17 00:05, Jaegeuk Kim wrote:
>> > On 09/16, Bean Huo wrote:
>> > > On Tue, 2020-09-15 at 13:45 -0700, Jaegeuk Kim wrote:
>> > > > Cc: Avri Altman <avri.altman@....com>
>> > > > Signed-off-by: Jaegeuk Kim <jaegeuk@...gle.com>
>> > > > ---
>> > > >  drivers/scsi/ufs/ufshcd.c | 8 ++++++++
>> > > >  1 file changed, 8 insertions(+)
>> > > >
>> > > > diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
>> > > > index bdc82cc3824aa..b81c116b976ff 100644
>> > > > --- a/drivers/scsi/ufs/ufshcd.c
>> > > > +++ b/drivers/scsi/ufs/ufshcd.c
>> > > > @@ -500,6 +500,14 @@ static void ufshcd_print_tmrs(struct ufs_hba
>> > > > *hba, unsigned long bitmap)
>> > > >  static void ufshcd_print_host_state(struct ufs_hba *hba)
>> > > >  {
>> > > >         dev_err(hba->dev, "UFS Host state=%d\n", hba->ufshcd_state);
>> > > > +       if (hba->sdev_ufs_device) {
>> > > > +               dev_err(hba->dev, " vendor = %.8s\n",
>> > > > +                                       hba->sdev_ufs_device-
>> > > > >vendor);
>> > > > +               dev_err(hba->dev, " model = %.16s\n",
>> > > > +                                       hba->sdev_ufs_device->model);
>> > > > +               dev_err(hba->dev, " rev = %.4s\n",
>> > > > +                                       hba->sdev_ufs_device->rev);
>> > > > +       }
>> > >
>> > > Hi Jaegeuk
>> > > these prints have been added since this change:
>> > >
>> > > commit 3f8af6044713 ("scsi: ufs: Add some debug information to
>> > > ufshcd_print_host_state()")
>> > >
>> > > https://patchwork.kernel.org/patch/11694371/
>> >
>> > Cool, thank you for pointing this out. BTW, which branch can I see the
>> > -next
>> > patches?
>> >
>> 
>> Hi Jaegeuk,
>> 
>> This patch comes from a series of changes trying to fix and simplify
>> the UFS error handling. You can find the whole series here - they are
>> picked up on scsi-queue-5.10
>> 
>> https://lore.kernel.org/linux-scsi/1596975355-39813-10-git-send-email-cang@codeaurora.org/
>> 
>> Besides, several more fixes for error handling based on above series 
>> are
>> 
>> https://lore.kernel.org/patchwork/patch/1290405/
>> &
>> https://lore.kernel.org/linux-scsi/159961731708.5787.8825955850640714260.b4-ty@oracle.com/
>> 
>> I've mainline all above changes to Android12-5.4 and Android11-5.4.
> 
> I've seen the patches in Android branches. Thank you for the 
> explanation.
> 
>> 
>> Moreover, there are 2 more fixes on the way for error handling, I
>> will push them soon.
> 
> BTW, could you please take a look at these patches?
> 
> Thanks,
> 

Sure, but since I am not in your cc or to list, so I don't know which
patches. Maybe you can add me when you push the next version? Thanks.

Regards,

Can Guo.

>> 
>> Thanks,
>> 
>> Can Guo.
>> 
>> > >
>> > > Thanks,
>> > > Bean