'struct i2c_algorithm' is not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increase overall security, especially when the structure holds some
function pointers.
On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
11027 646 16 11689 2da9 drivers/i2c/busses/i2c-rzv2m.o
After:
=====
text data bss dec hex filename
11107 566 16 11689 2da9 drivers/i2c/busses/i2c-rzv2m.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
Compile tested-only.
---
drivers/i2c/busses/i2c-rzv2m.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-rzv2m.c b/drivers/i2c/busses/i2c-rzv2m.c
index 53762cc56d28..b0e9c0b62429 100644
--- a/drivers/i2c/busses/i2c-rzv2m.c
+++ b/drivers/i2c/busses/i2c-rzv2m.c
@@ -402,7 +402,7 @@ static const struct i2c_adapter_quirks rzv2m_i2c_quirks = {
.flags = I2C_AQ_NO_ZERO_LEN,
};
-static struct i2c_algorithm rzv2m_i2c_algo = {
+static const struct i2c_algorithm rzv2m_i2c_algo = {
.xfer = rzv2m_i2c_xfer,
.functionality = rzv2m_i2c_func,
};
--
2.49.0
