From: Rafał Miłecki Date: Thu, 16 Dec 2021 16:22:03 +0000 (+0100) Subject: pinctrl: imx: prepare for making "group_names" in "function_desc" const X-Git-Tag: v6.6.17~8434^2~10 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=02f117134952c06faef2adb322630c51fcd3c197;p=platform%2Fkernel%2Flinux-rpi.git pinctrl: imx: prepare for making "group_names" in "function_desc" const The plan for "struct function_desc" is to make its "group_names" /double/ const. That will allow drivers to use it with static const data. This imx change is required to avoid: drivers/pinctrl/freescale/pinctrl-imx.c: In function 'imx_pinctrl_parse_functions': drivers/pinctrl/freescale/pinctrl-imx.c:672:24: error: assignment of read-only location '*(func->group_names + (sizetype)(i * 4))' 672 | func->group_names[i] = child->name; | ^ Signed-off-by: Rafał Miłecki Link: https://lore.kernel.org/r/20211216162206.8027-1-zajec5@gmail.com Signed-off-by: Linus Walleij --- diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c index daf28bc..47b2ab1 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx.c +++ b/drivers/pinctrl/freescale/pinctrl-imx.c @@ -648,6 +648,7 @@ static int imx_pinctrl_parse_functions(struct device_node *np, struct device_node *child; struct function_desc *func; struct group_desc *grp; + const char **group_names; u32 i = 0; dev_dbg(pctl->dev, "parse function(%d): %pOFn\n", index, np); @@ -663,14 +664,16 @@ static int imx_pinctrl_parse_functions(struct device_node *np, dev_err(ipctl->dev, "no groups defined in %pOF\n", np); return -EINVAL; } - func->group_names = devm_kcalloc(ipctl->dev, func->num_group_names, - sizeof(char *), GFP_KERNEL); + + group_names = devm_kcalloc(ipctl->dev, func->num_group_names, + sizeof(char *), GFP_KERNEL); if (!func->group_names) return -ENOMEM; + for_each_child_of_node(np, child) + group_names[i] = child->name; + func->group_names = group_names; for_each_child_of_node(np, child) { - func->group_names[i] = child->name; - grp = devm_kzalloc(ipctl->dev, sizeof(struct group_desc), GFP_KERNEL); if (!grp) {