Re: [PATCH 04/33] target: Fix BYTCHK=0 handling for VERIFY and WRITE AND VERIFY commands

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On Fri, 2017-06-02 at 22:32 -0700, Nicholas A. Bellinger wrote:
> On Fri, 2017-06-02 at 16:52 +0000, Bart Van Assche wrote:
> > On Thu, 2017-06-01 at 21:15 -0700, Nicholas A. Bellinger wrote:
> > > On Tue, 2017-05-23 at 16:48 -0700, Bart Van Assche wrote:
> > > > For VERIFY and WRITE AND VERIFY commands the size of the SCSI
> > > > Data-Out buffer can differ from the size of the data area on the
> > > > storage medium that is affected by the command. Make sure that
> > > > the Data-Out buffer size is computed correctly if the BYTCHK
> > > > field in the CDB is zero. This patch reverts commit 984a9d4c40be
> > > > and thereby restores commit 0e2eb7d12eaa. Additionally,
> > > > sbc_parse_cdb() is modified such that the data buffer size is
> > > > computed correctly for the affected commands if BYTCHK == 0.
> > > > This patch is the combination of two patches that got positive
> > > > reviews.
> > > > 
> > > > References: commit 984a9d4c40be ("Revert "target: Fix VERIFY and WRITE VERIFY command parsing"")
> > > > References: commit 0e2eb7d12eaa ("target: Fix VERIFY and WRITE VERIFY command parsing")
> > > > Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
> > > > Cc: Hannes Reinecke <hare@xxxxxxxx>
> > > > Cc: Christoph Hellwig <hch@xxxxxx>
> > > > Cc: Andy Grover <agrover@xxxxxxxxxx>
> > > > Cc: David Disseldorp <ddiss@xxxxxxx>
> > > > Cc: <stable@xxxxxxxxxxxxxxx>
> > > > ---
> > > >  drivers/target/target_core_sbc.c | 79 ++++++++++++++++++++++++++++++++++------
> > > >  1 file changed, 67 insertions(+), 12 deletions(-)
> > > > 
> > > 
> > > This patch ignored the review comments from the last round:
> > > 
> > > http://www.spinics.net/lists/target-devel/msg15306.html
> > > http://www.spinics.net/lists/target-devel/msg15327.html
> > > 
> > > Until these are addressed as requested, dropping this patch for now.
> > 
> > Hello Nic,
> > 
> > In this patch series I have addressed all comments that made sense to me. Sorry
> > if you feel offended because I had not addressed the two comments you referred to
> > above. The reason I had not addressed these comments is because these comments
> > are wrong in my opinion. Hence, please reconsider this patch.
> 
> Nope.  Here are the details again. 
> 
> First, it drops setting SCF_SCSI_DATA_CDB for WRITE_VERIFY in all cases,
> and only sets it for BYTCHK=0.

or rather, and only sets it (SCF_SCSI_DATA_CDB) for BYTCHK=1.




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