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 <garsilva@xxxxxxxxxxxxxx>
---
drivers/media/pci/ngene/ngene-i2c.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/pci/ngene/ngene-i2c.c b/drivers/media/pci/ngene/ngene-i2c.c
index fbf3635..3004947 100644
--- a/drivers/media/pci/ngene/ngene-i2c.c
+++ b/drivers/media/pci/ngene/ngene-i2c.c
@@ -150,7 +150,7 @@ static u32 ngene_i2c_functionality(struct i2c_adapter *adap)
return I2C_FUNC_SMBUS_EMUL;
}
-static struct i2c_algorithm ngene_i2c_algo = {
+static const struct i2c_algorithm ngene_i2c_algo = {
.master_xfer = ngene_i2c_master_xfer,
.functionality = ngene_i2c_functionality,
};
--
2.5.0
