[U-Boot] [PATCH] sf: fix timebase data type in _wait_ready()

Tom Rini trini at konsulko.com
Mon Apr 25 18:46:00 CEST 2016


On Mon, Apr 25, 2016 at 10:44:02AM -0600, Stephen Warren wrote:
> On 04/20/2016 11:49 PM, Stephen Warren wrote:
> >On 04/06/2016 05:22 AM, Jagan Teki wrote:
> >>On 5 April 2016 at 05:31, Tom Rini <trini at konsulko.com> wrote:
> >>>On Mon, Apr 04, 2016 at 11:03:52AM -0600, Stephen Warren wrote:
> >>>
> >>>>From: Stephen Warren <swarren at nvidia.com>
> >>>>
> >>>>get_timer() returns an unsigned 64-bit value, but is currently
> >>>>assigned to
> >>>>a signed 32-bit variable. Due to sign extension and data truncation,
> >>>>this
> >>>>causes the timeout loop in spi_flash_cmd_wait_ready() to immediately
> >>>>(and
> >>>>incorrectly) fire for about 50% of all time values, based on whether
> >>>>bit
> >>>>31 is set. In sandbox at least, this causes the test to pass or fail
> >>>>based
> >>>>on system uptime, as opposed to time since the U-Boot binary was
> >>>>started.
> >>>>
> >>>>Fixes: 4efad20a1751 ("sf: Update status reg check in
> >>>>spi_flash_cmd_wait_ready")
> >>>>Signed-off-by: Stephen Warren <swarren at nvidia.com>
> >>>
> >>>Reviewed-by: Tom Rini <trini at konsulko.com>
> >>
> >>Reviewed-by: Jagan Teki <jteki at openedev.com>
> >
> >Jagan, are you going to apply this?
> 
> Tom, does it make sense for you to apply this?

If Jagan doesn't want to make up a small PR for this, yes.  And since I
should do an rc3 today, yes, I should pick this up myself.  Thanks for
the reminder.

-- 
Tom
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