Re: [PATCH 38/62] s2io: Use static const

Jon Mason
2010-11-22T05:36:24Z

On Sat, Nov 20, 2010 at 06:38:39PM -0800, Joe Perches wrote:
> Using static const generally increases object text and decreases data size.
> It also generally decreases overall object size.
>
> text data bss dec hex filename
> 109387 389 24432 134208 20c40 drivers/net/s2io.o.old
> 109358 389 24432 134179 20c23 drivers/net/s2io.o.new
>
> Signed-off-by: Joe Perches <joe@perches.com>

Looks fine to me. Due to Dave's objections, I'll queue it in our tree
for the next s2io driver patch series.

Thanks,
Jon

> ---
> drivers/net/s2io.c | 20 ++++++++++++--------
> 1 files changed, 12 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
> index 0f4219c..22fea37 100644
> --- a/drivers/net/s2io.c
> +++ b/drivers/net/s2io.c
> @@ -3598,10 +3598,12 @@ static int s2io_set_swapper(struct s2io_nic *sp)
> val64 = readq(&bar0->pif_rd_swapper_fb);
> if (val64 != 0x0123456789ABCDEFULL) {
> int i = 0;
> - u64 value[] = { 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */
> - 0x8100008181000081ULL, /* FE=1, SE=0 */
> - 0x4200004242000042ULL, /* FE=0, SE=1 */
> - 0}; /* FE=0, SE=0 */
> + static const u64 value[] = {
> + 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */
> + 0x8100008181000081ULL, /* FE=1, SE=0 */
> + 0x4200004242000042ULL, /* FE=0, SE=1 */
> + 0 /* FE=0, SE=0 */
> + };
>
> while (i < 4) {
> writeq(value[i], &bar0->swapper_ctrl);
> @@ -3627,10 +3629,12 @@ static int s2io_set_swapper(struct s2io_nic *sp)
>
> if (val64 != valt) {
> int i = 0;
> - u64 value[] = { 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */
> - 0x0081810000818100ULL, /* FE=1, SE=0 */
> - 0x0042420000424200ULL, /* FE=0, SE=1 */
> - 0}; /* FE=0, SE=0 */
> + static const u64 value[] = {
> + 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */
> + 0x0081810000818100ULL, /* FE=1, SE=0 */
> + 0x0042420000424200ULL, /* FE=0, SE=1 */
> + 0 /* FE=0, SE=0 */
> + };
>
> while (i < 4) {
> writeq((value[i] | valr), &bar0->swapper_ctrl);
> --
> 1.7.3.2.245.g03276.dirty
>

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