Check for i2c_algorithm structures that are only stored in
the algo field of an i2c_adapter structure. This field is
declared const, so i2c_algorithm structures that have this
property can be declared as const also.
This issue was identified using Coccinelle and the following
semantic patch:
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct i2c_algorithm i@p = { ... };
@ok@
identifier r.i;
struct i2c_adapter e;
position p;
@@
e.algo = &i@p;
@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct i2c_algorithm i = { ... };
Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com>
---
drivers/media/platform/marvell-ccic/cafe-driver.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/marvell-ccic/cafe-driver.c
b/drivers/media/platform/marvell-ccic/cafe-driver.c
index 77890bd..063fd43 100644
--- a/drivers/media/platform/marvell-ccic/cafe-driver.c
+++ b/drivers/media/platform/marvell-ccic/cafe-driver.c
@@ -326,7 +326,7 @@ static u32 cafe_smbus_func(struct i2c_adapter *adapter)
I2C_FUNC_SMBUS_WRITE_BYTE_DATA;
}
-static struct i2c_algorithm cafe_smbus_algo = {
+static const struct i2c_algorithm cafe_smbus_algo = {
.smbus_xfer = cafe_smbus_xfer,
.functionality = cafe_smbus_func
};
--
2.5.0
