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SubjectRe: [PATCH] mtd: mtdswap: make array 'name' static const, shrinks object size
On Tue, 28 Nov 2017 18:59:46 +0000
Colin King <colin.king@canonical.com> wrote:

> From: Colin Ian King <colin.king@canonical.com>
>
> Don't populate the read-only array 'name' on the stack but instead
> make it static and constify it. Makes the object code smaller by 35
> bytes:
>
> Before:
> text data bss dec hex filename
> 26304 4444 352 31100 797c drivers/mtd/mtdswap.o
>
> After:
> text data bss dec hex filename
> 26205 4508 352 31065 7959 drivers/mtd/mtdswap.o
>
> (gcc version 7.2.0 x86_64)
>
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Applied.

Thanks,

Boris

> ---
> drivers/mtd/mtdswap.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c
> index f07492c6f4b2..7eb0e1f4f980 100644
> --- a/drivers/mtd/mtdswap.c
> +++ b/drivers/mtd/mtdswap.c
> @@ -1223,8 +1223,9 @@ static int mtdswap_show(struct seq_file *s, void *data)
> unsigned int max[MTDSWAP_TREE_CNT];
> unsigned int i, cw = 0, cwp = 0, cwecount = 0, bb_cnt, mapped, pages;
> uint64_t use_size;
> - char *name[] = {"clean", "used", "low", "high", "dirty", "bitflip",
> - "failing"};
> + static const char * const name[] = {
> + "clean", "used", "low", "high", "dirty", "bitflip", "failing"
> + };
>
> mutex_lock(&d->mbd_dev->lock);
>

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