Re: [PATCH 2/2] block: sed-opal: fix sparse warning: convert __be64 data

2019-10-03 Thread Scott Bauer
On Wed, Oct 02, 2019 at 07:23:15PM -0700, Randy Dunlap wrote:
> From: Randy Dunlap 
> 
> sparse warns about incorrect type when using __be64 data.
> It is not being converted to CPU-endian but it should be.
> 
> Fixes these sparse warnings:
> 
> ../block/sed-opal.c:375:20: warning: incorrect type in assignment (different 
> base types)
> ../block/sed-opal.c:375:20:expected unsigned long long [usertype] align
> ../block/sed-opal.c:375:20:got restricted __be64 const [usertype] 
> alignment_granularity
> ../block/sed-opal.c:376:25: warning: incorrect type in assignment (different 
> base types)
> ../block/sed-opal.c:376:25:expected unsigned long long [usertype] 
> lowest_lba
> ../block/sed-opal.c:376:25:got restricted __be64 const [usertype] 
> lowest_aligned_lba
> 
> Fixes: 455a7b238cd6 ("block: Add Sed-opal library")
> Signed-off-by: Randy Dunlap 
> Cc: Scott Bauer 
> Cc: Rafael Antognolli 
> Cc: Jens Axboe 
> Cc: linux-bl...@vger.kernel.org

+ Jon and Revanth,


These look fine. They're currently unused, but may be useful in the future for 
sysfs or what ever else we add in.


Re: [PATCH 2/2] block: sed-opal: fix sparse warning: convert __be64 data

2019-10-03 Thread Derrick, Jonathan
On Thu, 2019-10-03 at 11:40 -0400, Scott Bauer wrote:
> On Wed, Oct 02, 2019 at 07:23:15PM -0700, Randy Dunlap wrote:
> > From: Randy Dunlap 
> > 
> > sparse warns about incorrect type when using __be64 data.
> > It is not being converted to CPU-endian but it should be.
> > 
> > Fixes these sparse warnings:
> > 
> > ../block/sed-opal.c:375:20: warning: incorrect type in assignment 
> > (different base types)
> > ../block/sed-opal.c:375:20:expected unsigned long long [usertype] align
> > ../block/sed-opal.c:375:20:got restricted __be64 const [usertype] 
> > alignment_granularity
> > ../block/sed-opal.c:376:25: warning: incorrect type in assignment 
> > (different base types)
> > ../block/sed-opal.c:376:25:expected unsigned long long [usertype] 
> > lowest_lba
> > ../block/sed-opal.c:376:25:got restricted __be64 const [usertype] 
> > lowest_aligned_lba
> > 
> > Fixes: 455a7b238cd6 ("block: Add Sed-opal library")
> > Signed-off-by: Randy Dunlap 
> > Cc: Scott Bauer 
> > Cc: Rafael Antognolli 
> > Cc: Jens Axboe 
> > Cc: linux-bl...@vger.kernel.org
> 
> + Jon and Revanth,
> 
> 
> These look fine. They're currently unused, but may be useful in the future 
> for sysfs or what ever else we add in.

I imagine modern devices with logical/physical indirection would
probably report gran=1 and lowest=0 regardless.

Either way,
Reviewed-by: Jon Derrick