pinctrl: ti: ti-iodelay: Constify struct ti_iodelay_reg_data

'struct ti_iodelay_reg_data' is not modified in this driver.

Constifying this structure moves some data to a read-only section, so
increase overall security.

On a x86_64, with allmodconfig:
Before:
======
   text	   data	    bss	    dec	    hex	filename
  17259	   1788	     16	  19063	   4a77	drivers/pinctrl/ti/pinctrl-ti-iodelay.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  17355	   1692	     16	  19063	   4a77	drivers/pinctrl/ti/pinctrl-ti-iodelay.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/40d6e67ab4e73d2cbe7ca0060ac27afc894fc415.1720556038.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
index 0eea4bc164a05c40eb7e08152d73265f8695abd6..019b302db2b0012c37de49ee59452c01db61f774 100644 (file)
--- a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
+++ b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
@@ -783,7 +783,7 @@ static const struct regmap_config dra7_iodelay_regmap_config = {
        .max_register = 0xd1c,
 };
 
-static struct ti_iodelay_reg_data dra7_iodelay_data = {
+static const struct ti_iodelay_reg_data dra7_iodelay_data = {
        .signature_mask = 0x0003f000,
        .signature_value = 0x29,
        .lock_mask = 0x00000400,