linux-kernel - [PATCH 12/17] gpio/samsung: mark const init data with __initconst instead of _

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Date:	Thu, 29 Mar 2012 23:12:29 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	kernel@...gutronix.de, Grant Likely <grant.likely@...retlab.ca>,
	Linus Walleij <linus.walleij@...ricsson.com>
Subject: [PATCH 12/17] gpio/samsung: mark const init data with __initconst instead of __initdata

As long as there is no other non-const variable marked __initdata in the
same compilation unit it doesn't hurt. If there were one however
compilation would fail with

	error: $variablename causes a section type conflict

because a section containing const variables is marked read only and so
cannot contain non-const variables.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Cc: Grant Likely <grant.likely@...retlab.ca>
Cc: Linus Walleij <linus.walleij@...ricsson.com>
---
 drivers/gpio/gpio-samsung.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index 4627787..fee2e85 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -2681,7 +2681,7 @@ static int exynos_gpio_xlate(struct gpio_chip *gc,
 	return gpiospec->args[0];
 }
 
-static const struct of_device_id exynos_gpio_dt_match[] __initdata = {
+static const struct of_device_id exynos_gpio_dt_match[] __initconst = {
 	{ .compatible = "samsung,exynos4-gpio", },
 	{}
 };
-- 
1.7.9.1

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