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

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Message-ID: <06eb20588007cf87181446ab3946e8b2@codeaurora.org>
Date:   Thu, 17 Sep 2020 08:54:03 +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 2020-09-17 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.

Moreover, there are 2 more fixes on the way for error handling, I
will push them soon.

Thanks,

Can Guo.

>> 
>> Thanks,
>> Bean