[PATCH] Revert "drivers: scsi: fix inaccurate block count reporting in scsi operations"

[Tony Dinh]

Hi Balaji,

On Fri, Dec 19, 2025 at 8:29 AM Tom Rini <trini at konsulko.com> wrote:
>
> On Fri, Dec 19, 2025 at 11:04:07AM +0530, Balaji Selvanathan wrote:
> > Hi Tom,
> >
> > Apologies for late reply. Somehow missed the mail.
> >
> > Upon analysis, it seems the most likely root cause is Tony's 238GB disk
> > triggers the CONFIG_SYS_64BIT_LBA code path in scsi_read function. Any read
> > beyond block 268,435,455 blocks enters this path.
> >
> > 'blks' is decremented both inside the 64-bit LBA block AND after successful
> > scsi_exec(), causing incorrect block count tracking and (most likely) the
> > data abort observed.
> >
> > The fix is to remove 'blks -= blocks;' from inside the CONFIG_SYS_64BIT_LBA
> > block in scsi_read() function.
> >
> > Hi Tony, can you please check with this change?
> >
> > Tom, shall I raise a new patch for this now?
>
> Thanks for looking in to this now. Yes, please post a proper patch for
> it so Tony can test and add a Tested-by if it works, that'll make
> pulling to master before release easiest.

FYI, I will be traveling a week from now. So it would be best if you
can send the patch in the next couple days. Otherwise, someone else
needs to do the test in time for the Jan 05 release.

All the best,
Tony

>
> --
> Tom