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SubjectRe: [PATCH] fpga: mgr: altera-ps-spi: make array dummy static, shrinks object size
On Thu, Nov 29, 2018 at 5:10 PM Colin King <colin.king@canonical.com> wrote:

Hi Colin,

Thanks!

>
> From: Colin Ian King <colin.king@canonical.com>
>
> Don't populate the const array dummy on the stack but instead
> make it static. Makes the object code smaller by 26 bytes:
>
> Before:
> text data bss dec hex filename
> 7371 2032 0 9403 24bb drivers/fpga/altera-ps-spi.o
>
> After:
> text data bss dec hex filename
> 7281 2096 0 9377 24a1 drivers/fpga/altera-ps-spi.o
>
> (gcc version 8.2.0 x86_64)
>
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Acked-by: Alan Tull <atull@kernel.org>


> ---
> drivers/fpga/altera-ps-spi.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/fpga/altera-ps-spi.c b/drivers/fpga/altera-ps-spi.c
> index 8c18beec6b57..678d0115f840 100644
> --- a/drivers/fpga/altera-ps-spi.c
> +++ b/drivers/fpga/altera-ps-spi.c
> @@ -205,7 +205,7 @@ static int altera_ps_write_complete(struct fpga_manager *mgr,
> struct fpga_image_info *info)
> {
> struct altera_ps_conf *conf = mgr->priv;
> - const char dummy[] = {0};
> + static const char dummy[] = {0};
> int ret;
>
> if (gpiod_get_value_cansleep(conf->status)) {
> --
> 2.19.1
>

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