[PATCH 09/12] mmc: sunxi: constify mmc_host_ops structures

From: Julia Lawall
Date: Sat Jul 29 2017 - 02:25:22 EST


The mmc_host_ops structure is only stored in the ops field of an
mmc_host structure, which is declared as const. Thus the mmc_host_ops
structure itself can be const.

Done with the help of Coccinelle.

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct mmc_host_ops i@p = { ... };

@ok1@
struct mmc_host *mmc;
identifier r.i;
position p;
@@
mmc->ops = &i@p

@bad@
position p != {r.p,ok1.p};
identifier r.i;
struct mmc_host_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct mmc_host_ops i = { ... };
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>

---
drivers/mmc/host/sunxi-mmc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 6adc524..fa0601c 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1048,7 +1048,7 @@ static int sunxi_mmc_card_busy(struct mmc_host *mmc)
return !!(mmc_readl(host, REG_STAS) & SDXC_CARD_DATA_BUSY);
}

-static struct mmc_host_ops sunxi_mmc_ops = {
+static const struct mmc_host_ops sunxi_mmc_ops = {
.request = sunxi_mmc_request,
.set_ios = sunxi_mmc_set_ios,
.get_ro = mmc_gpio_get_ro,