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SubjectRe: [PATCH] lightnvm: assume 64-bit lba numbers
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On 04/19/2017 07:39 PM, Arnd Bergmann wrote:
> The driver uses both u64 and sector_t to refer to offsets, and assigns between the
> two. This causes one harmless warning when sector_t is 32-bit:
>
> drivers/lightnvm/pblk-rb.c: In function 'pblk_rb_write_entry_gc':
> include/linux/lightnvm.h:215:20: error: large integer implicitly truncated to unsigned type [-Werror=overflow]
> drivers/lightnvm/pblk-rb.c:324:22: note: in expansion of macro 'ADDR_EMPTY'
>
> As the driver is already doing this inconsistently, changing the type
> won't make it worse and is an easy way to avoid the warning.
>
> Fixes: a4bd217b4326 ("lightnvm: physical block device (pblk) target")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/lightnvm/pblk.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
> index c82120ce3be5..11ed7d83f572 100644
> --- a/drivers/lightnvm/pblk.h
> +++ b/drivers/lightnvm/pblk.h
> @@ -119,7 +119,7 @@ struct pblk_w_ctx {
> struct bio_list bios; /* Original bios - used for completion
> * in REQ_FUA, REQ_FLUSH case
> */
> - sector_t lba; /* Logic addr. associated with entry */
> + u64 lba; /* Logic addr. associated with entry */
> struct ppa_addr ppa; /* Physic addr. associated with entry */
> int flags; /* Write context flags */
> };
>

Thanks Arnd. Jens, could you pick this up? Thank you

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