On 10/7/15 4:20 PM, Daniel Borkmann wrote:
From: Hannes Frederic Sowa<han...@stressinduktion.org>
Make the get_random_once() helper generic enough, so that functions
in general would only be called once, where one user of this is then
net_get_random_once().
The only implementation specific call is to get_random_bytes(), all
the rest of this *_once() facility would be duplicated among different
subsystems otherwise. The new DO_ONCE() helper will be used by prandom()
later on, but might also be useful for other scenarios/subsystems as
well where a one-time initialization in often-called, possibly fast
path code could occur.
Signed-off-by: Hannes Frederic Sowa<han...@stressinduktion.org>
Signed-off-by: Daniel Borkmann<dan...@iogearbox.net>
nice! you even added sparse tags.
Acked-by: Alexei Starovoitov <a...@kernel.org>
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