Re: [Qemu-devel] Re: [PATCH 1/4] Add a scatter-gather list type and accessors

["M. Warner Losh" <imp@bsdimp.com>]

In message: <4989FC3B.7010407@us.ibm.com>
            Anthony Liguori <aliguori@us.ibm.com> writes:
: Avi Kivity wrote:
: > Anthony Liguori wrote:
: >> Avi Kivity wrote:
: >>> Scatter-gather lists are used extensively in dma-capable devices; a
: >>> single data structure allows more code reuse later on.
: >>>
: >>> diff --git a/dma-helpers.c b/dma-helpers.c
: >>> new file mode 100644
: >>> index 0000000..315834e
: >>> --- /dev/null
: >>> +++ b/dma-helpers.c
: >>> @@ -0,0 +1,29 @@
: >>>   
: >>
: >> Needs copyright/license.
: >
: > Sure.
: >
: > Is it possible to have a blanket license for files which don't have 
: > explicit terms?  I don't much like boilerplate.
: 
: I'd greatly prefer not to.  You can refer to a COPYING and we can have a 
: default COPYING file but a copyright is really needed as far as I 
: understand it.

The copyright exists regardless of any notices being on the file.  In
the absence of a license to copy, however, the default legally defined
license is 'you may not copy it at all'.  Based on this, you need to
have an explicit license for all files.  However, it only needs to be
clear what the license for a given file is.  You don't have to have
the license in each and every file.

Warner