Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1270027

Re: [PATCH] lightnvm: change max_phys_sect to ushort

From Matias Bjørling <m@bjorling.me>
Newsgroups linux.kernel
Subject Re: [PATCH] lightnvm: change max_phys_sect to ushort
Date 2015-11-16 12:30 +0100
Message-ID <qvq8W-6FI-21@gated-at.bofh.it> (permalink)
References <qu4WT-42L-41@gated-at.bofh.it> <qvpZf-6BR-7@gated-at.bofh.it>
Organization Paletta

Show all headers | View raw


On 11/16/2015 12:18 PM, Thiago Farina wrote:
> On Thu, Nov 12, 2015 at 4:35 PM, Matias Bjørling <m@bjorling.me> wrote:
>> The max_phys_sect variable is defined as a char. We do a boundary check
>> to maximally allow 256 physical page descriptors per command. As we are
>> not indexing from zero. This expression is always in false. Bump the
>> max_phys_sect to an unsigned short to support the range check.
>>
> You might have to change the commit message to match the code change.
> s/unsigned short/unsigned int. RIght?

You're right. It has been fixed.

>
>> Signed-off-by: Matias Bjørling <m@bjorling.me>
>> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
>> ---
>>   include/linux/lightnvm.h | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
>> index 69c9057..4b1cd3d 100644
>> --- a/include/linux/lightnvm.h
>> +++ b/include/linux/lightnvm.h
>> @@ -220,7 +220,7 @@ struct nvm_dev_ops {
>>          nvm_dev_dma_alloc_fn    *dev_dma_alloc;
>>          nvm_dev_dma_free_fn     *dev_dma_free;
>>
>> -       uint8_t                 max_phys_sect;
>> +       unsigned int max_phys_sect;
>>   };
>>
>>   struct nvm_lun {
>
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread


Thread

[PATCH] lightnvm: change max_phys_sect to ushort Matias Bjørling <m@bjorling.me> - 2015-11-12 19:40 +0100
  Re: [PATCH] lightnvm: change max_phys_sect to ushort Geert Uytterhoeven <geert@linux-m68k.org> - 2015-11-12 19:50 +0100
    Re: [PATCH] lightnvm: change max_phys_sect to ushort Matias Bjørling <m@bjorling.me> - 2015-11-12 20:00 +0100
      Re: [PATCH] lightnvm: change max_phys_sect to ushort Matias Bjørling <m@bjorling.me> - 2015-11-12 20:10 +0100
      Re: [PATCH] lightnvm: change max_phys_sect to ushort Linus Torvalds <torvalds@linux-foundation.org> - 2015-11-12 20:10 +0100
  Re: [PATCH] lightnvm: change max_phys_sect to ushort Thiago Farina <tfransosi@gmail.com> - 2015-11-16 12:20 +0100
    Re: [PATCH] lightnvm: change max_phys_sect to ushort Matias Bjørling <m@bjorling.me> - 2015-11-16 12:30 +0100

csiph-web