Re: [PATCH v1 0/2] scatterlist: introduce sg_nents_for_len

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Jun 01, 2015 at 11:15:19AM -0500, Tom Lendacky wrote:
> This series introduces and makes use of a new scatterlist function named
> sg_nents_for_len. The purpose of this function is determine the number
> of scatterlist entries required to satisify a specified length. The
> resulting count can be used as input to the dma_map_sg function to map
> only the entries needed.
> 
> This function is needed for cases where a supplied scatterlist has not
> marked the last filled sg entry as the end of the scatterlist. In these
> cases, the sg_nents function count includes sg entries that may not have
> been filled in. When using this value in a dma_map_sg call it can result
> in errors/bugs being generated.
> 
> The following patches are included in this series:
> - Introduce the sg_nents_for_len function
> - Update the ccp driver to use the sg_nents_for_len function
> 
> This patch series is based on cryptodev-2.6.

Both applied.  Thanks.
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe linux-crypto" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Kernel]     [Gnu Classpath]     [Gnu Crypto]     [DM Crypt]     [Netfilter]     [Bugtraq]

  Powered by Linux