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To:     Marc Gonzalez <marc.w.gonzalez@free.fr>
Cc:     "Martin K. Petersen" <martin.petersen@oracle.com>,
        SCSI <linux-scsi@vger.kernel.org>,
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        Rob Herring <robh+dt@kernel.org>,
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        Ohad Sharabi <ohad.sharabi@wdc.com>,
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Subject: Re: [PATCH v5 1/2] scsi: ufs: Do not disable vccq in UFSHC driver
From:   "Martin K. Petersen" <martin.petersen@oracle.com>
Organization: Oracle Corporation
References: <494cd639-89a7-8868-b63a-ea7cdcba9777@free.fr>
        <be3ef9bf-438b-4e8a-62c4-f75458e8ecc0@free.fr>
        <yq1ftsad2yi.fsf@oracle.com>
        <b7f37c2d-27c7-9b58-20c8-52624783a6fa@free.fr>
        <yq1bm2yd2kr.fsf@oracle.com>
        <026c10b1-48e8-ab9f-fda8-6e3557b841a7@free.fr>
Date:   Tue, 26 Feb 2019 11:26:27 -0500
In-Reply-To: <026c10b1-48e8-ab9f-fda8-6e3557b841a7@free.fr> (Marc Gonzalez's
        message of "Tue, 26 Feb 2019 16:30:09 +0100")
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Hi Marc,

> I indeed started off from 'git revert'
>
> $ git revert 60f0187031c0
> warning: inexact rename detection was skipped due to too many files.
> warning: you may want to set your merge.renamelimit variable to at
> least 18258 and retry the command.
> error: could not revert 60f0187031c0... scsi: ufs: disable vccq if
> it's not needed by UFS device
> hint: after resolving the conflicts, mark the corrected paths
> hint: with 'git add <paths>' or 'git rm <paths>'
> hint: and commit the result with 'git commit'
>
> So I had to resolve the conflict in ufshcd_probe_hba()
>
> The line:
>
> 	ufs_advertise_fixup_device(hba);
>
> was modified by commit 93fdd5ac64bbe80dac6416f048405362d7ef0945

If it's a resolvable delta, a proper git revert is preferred. Please
document any conflicts in the commit message and list the relevant
commits that introduced them.

If you find yourself in a situation where reverting simply isn't
feasible, I'd expect the commit to state "This should have been a revert
but I'd have to boil the oceans to resolve the conflicts because XYZ..."

-- 
Martin K. Petersen	Oracle Linux Engineering