linux-kernel - Re: [PATCH v5 1/2] scsi: ufs: Do not disable vccq in UFSHC driver

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Message-ID: <yq1y362bjnw.fsf@oracle.com>
Date:   Tue, 26 Feb 2019 11:26:27 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Marc Gonzalez <marc.w.gonzalez@...e.fr>
Cc:     "Martin K. Petersen" <martin.petersen@...cle.com>,
        SCSI <linux-scsi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Jeffrey Hugo <jhugo@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Evan Green <evgreen@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Pedro Sousa <pedrom.sousa@...opsys.com>,
        Joao Pinto <jpinto@...opsys.com>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Bart Van Assche <bart.vanassche@....com>,
        Stanislav Nijnikov <stanislav.nijnikov@....com>,
        Alex Lemberg <alex.lemberg@....com>,
        Ohad Sharabi <ohad.sharabi@....com>,
        Hannes Reinecke <hare@...e.de>, Kyuho Choi <kyuho.choi@...com>
Subject: Re: [PATCH v5 1/2] scsi: ufs: Do not disable vccq in UFSHC driver


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