linux-kernel - [PATCH v2 13/19] of: dynamic: Constify parameter in of_changeset_add_prop_string

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Message-ID: <20240527161450.326615-14-herve.codina@bootlin.com>
Date: Mon, 27 May 2024 18:14:40 +0200
From: Herve Codina <herve.codina@...tlin.com>
To: Simon Horman <horms@...nel.org>,
	Sai Krishna Gajula <saikrishnag@...vell.com>,
	Herve Codina <herve.codina@...tlin.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Lee Jones <lee@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Horatiu Vultur <horatiu.vultur@...rochip.com>,
	UNGLinuxDriver@...rochip.com,
	Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Saravana Kannan <saravanak@...gle.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Lars Povlsen <lars.povlsen@...rochip.com>,
	Steen Hegelund <Steen.Hegelund@...rochip.com>,
	Daniel Machon <daniel.machon@...rochip.com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Allan Nielsen <allan.nielsen@...rochip.com>,
	Steen Hegelund <steen.hegelund@...rochip.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH v2 13/19] of: dynamic: Constify parameter in of_changeset_add_prop_string_array()

The str_array parameter has no reason to be an un-const array.
Indeed, elements of the 'str_array' array are not changed by the code.

Constify the 'str_array' array parameter.
With this const qualifier added, the following construction is allowed:
  static const char * const tab_str[] = { "string1", "string2" };
  of_changeset_add_prop_string_array(..., tab_str, ARRAY_SIZE(tab_str));

Signed-off-by: Herve Codina <herve.codina@...tlin.com>
---
 drivers/of/dynamic.c | 2 +-
 include/linux/of.h   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c
index dda6092e6d3a..70011a98c500 100644
--- a/drivers/of/dynamic.c
+++ b/drivers/of/dynamic.c
@@ -984,7 +984,7 @@ EXPORT_SYMBOL_GPL(of_changeset_add_prop_string);
 int of_changeset_add_prop_string_array(struct of_changeset *ocs,
 				       struct device_node *np,
 				       const char *prop_name,
-				       const char **str_array, size_t sz)
+				       const char * const *str_array, size_t sz)
 {
 	struct property prop;
 	int i, ret;
diff --git a/include/linux/of.h b/include/linux/of.h
index a0bedd038a05..ee9a385a13db 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -1639,7 +1639,7 @@ int of_changeset_add_prop_string(struct of_changeset *ocs,
 int of_changeset_add_prop_string_array(struct of_changeset *ocs,
 				       struct device_node *np,
 				       const char *prop_name,
-				       const char **str_array, size_t sz);
+				       const char * const *str_array, size_t sz);
 int of_changeset_add_prop_u32_array(struct of_changeset *ocs,
 				    struct device_node *np,
 				    const char *prop_name,
-- 
2.45.0