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

From: Scott Bauer
Date: Thu Oct 03 2019 - 12:14:28 EST


On Wed, Oct 02, 2019 at 07:23:15PM -0700, Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
>
> 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 <rdunlap@xxxxxxxxxxxxx>
> Cc: Scott Bauer <scott.bauer@xxxxxxxxx>
> Cc: Rafael Antognolli <rafael.antognolli@xxxxxxxxx>
> Cc: Jens Axboe <axboe@xxxxxxxxx>
> Cc: linux-block@xxxxxxxxxxxxxxx

+ 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.