[PATCH v8 2/9] mailbox: Make mbox_chan_ops const

Andrew Bresticker
2015-05-04T17:37:14Z

The mailbox controller's channel ops ought to be read-only. Update
all the mailbox drivers to make their mbox_chan_ops const as well.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Jassi Brar <jassisinghbrar@gmail.com>
Cc: Suman Anna <s-anna@ti.com>
Cc: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Cc: Ley Foon Tan <lftan@altera.com>
---
Changes from v7:
- Constify all drivers' mbox_chan_ops.
No changes from v5/v6.
New for v5.
---
drivers/mailbox/arm_mhu.c | 2 +-
drivers/mailbox/mailbox-altera.c | 2 +-
drivers/mailbox/omap-mailbox.c | 2 +-
drivers/mailbox/pcc.c | 2 +-
include/linux/mailbox_controller.h | 2 +-
5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/mailbox/arm_mhu.c b/drivers/mailbox/arm_mhu.c
index ac693c6..d9e99f9 100644
--- a/drivers/mailbox/arm_mhu.c
+++ b/drivers/mailbox/arm_mhu.c
@@ -110,7 +110,7 @@ static void mhu_shutdown(struct mbox_chan *chan)
free_irq(mlink->irq, chan);
}

-static struct mbox_chan_ops mhu_ops = {
+static const struct mbox_chan_ops mhu_ops = {
.send_data = mhu_send_data,
.startup = mhu_startup,
.shutdown = mhu_shutdown,
diff --git a/drivers/mailbox/mailbox-altera.c b/drivers/mailbox/mailbox-altera.c
index a266265..bb682c9 100644
--- a/drivers/mailbox/mailbox-altera.c
+++ b/drivers/mailbox/mailbox-altera.c
@@ -285,7 +285,7 @@ static void altera_mbox_shutdown(struct mbox_chan *chan)
}
}

-static struct mbox_chan_ops altera_mbox_ops = {
+static const struct mbox_chan_ops altera_mbox_ops = {
.send_data = altera_mbox_send_data,
.startup = altera_mbox_startup,
.shutdown = altera_mbox_shutdown,
diff --git a/drivers/mailbox/omap-mailbox.c b/drivers/mailbox/omap-mailbox.c
index 0f332c1..03f8545 100644
--- a/drivers/mailbox/omap-mailbox.c
+++ b/drivers/mailbox/omap-mailbox.c
@@ -604,7 +604,7 @@ static int omap_mbox_chan_send_data(struct mbox_chan *chan, void *data)
return ret;
}

-static struct mbox_chan_ops omap_mbox_chan_ops = {
+static const struct mbox_chan_ops omap_mbox_chan_ops = {
.startup = omap_mbox_chan_startup,
.send_data = omap_mbox_chan_send_data,
.shutdown = omap_mbox_chan_shutdown,
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 7e91d68..26d121d 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -198,7 +198,7 @@ static int pcc_send_data(struct mbox_chan *chan, void *data)
return 0;
}

-static struct mbox_chan_ops pcc_chan_ops = {
+static const struct mbox_chan_ops pcc_chan_ops = {
.send_data = pcc_send_data,
};

diff --git a/include/linux/mailbox_controller.h b/include/linux/mailbox_controller.h
index d4cf96f..68c4245 100644
--- a/include/linux/mailbox_controller.h
+++ b/include/linux/mailbox_controller.h
@@ -72,7 +72,7 @@ struct mbox_chan_ops {
*/
struct mbox_controller {
struct device *dev;
- struct mbox_chan_ops *ops;
+ const struct mbox_chan_ops *ops;
struct mbox_chan *chans;
int num_chans;
bool txdone_irq;
--
2.2.0.rc0.207.ga3a616c