On Mon, 2010-03-15 at 08:20 -0400, steved@xxxxxxxxxx wrote:
> From: Kevin Coffman <kwc@xxxxxxxxxxxxxx>
>
> Allow blocksizes other than 8 when calculating padding
>
> Signed-off-by: Kevin Coffman <kwc@xxxxxxxxxxxxxx>
> Signed-off-by: Steve Dickson <steved@xxxxxxxxxx>
> ---
> net/sunrpc/auth_gss/gss_krb5_wrap.c | 5 +----
> 1 files changed, 1 insertions(+), 4 deletions(-)
>
> diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
> index a0660f5..4c14b0a 100644
> --- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
> +++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
> @@ -13,10 +13,7 @@
> static inline int
> gss_krb5_padding(int blocksize, int length)
> {
> - /* Most of the code is block-size independent but currently we
> - * use only 8: */
> - BUG_ON(blocksize != 8);
> - return 8 - (length & 7);
> + return blocksize - (length & (blocksize - 1));
> }
>
What happens if blocksize is not a power of 2?
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