[Mesa-dev] [RFC 18/21] mesa/extensions: Remove extra memsets on gl_extensions

[Marek Olšák]

On Tue, Oct 20, 2015 at 12:44 AM, Nanley Chery <nanleychery at gmail.com> wrote:
> From: Nanley Chery <nanley.g.chery at intel.com>
>
> Aside from those modified in this commit, all gl_extensions structs are
> zero-initialized by default. There is therefore no need to memset the
> structs to 0. Also, remove the open-coded memset in
> _mesa_init_extensions().
>
> Signed-off-by: Nanley Chery <nanley.g.chery at intel.com>
> ---
>  src/mesa/main/extensions.c | 18 ++++--------------
>  1 file changed, 4 insertions(+), 14 deletions(-)
>
> diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
> index 365e7ed..6cd2b27 100644
> --- a/src/mesa/main/extensions.c
> +++ b/src/mesa/main/extensions.c
> @@ -37,8 +37,8 @@
>  #include "macros.h"
>  #include "mtypes.h"
>
> -struct gl_extensions _mesa_extension_override_enables;
> -struct gl_extensions _mesa_extension_override_disables;
> +struct gl_extensions _mesa_extension_override_enables = {0};
> +struct gl_extensions _mesa_extension_override_disables = {0};

This looks good. Note that global variables are always
zero-initialized, thus the initializer is useless there. This hunk
could be dropped, but it's not a big deal.

Marek