linux-kernel - [PATCH 16/17] ARM: at91: mark const init data with __initconst instead of _

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Message-Id: <1421359100-8930-17-git-send-email-alexandre.belloni@free-electrons.com>
Date:	Thu, 15 Jan 2015 22:58:19 +0100
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
Cc:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Arnd Bergmann <arnd@...db.de>,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Bo Shen <voice.shen@...el.com>,
	Wenyou Yang <Wenyou.Yang@...el.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Subject: [PATCH 16/17] ARM: at91: 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: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
---
 arch/arm/mach-at91/at91rm9200.c | 2 +-
 arch/arm/mach-at91/at91sam9.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 6992cc9ce902..a1d1e63fb405 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -46,7 +46,7 @@ static void __init rm9200_dt_device_init(void)
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
-static const char *at91rm9200_dt_board_compat[] __initdata = {
+static const char *at91rm9200_dt_board_compat[] __initconst = {
 	"atmel,at91rm9200",
 	NULL
 };
diff --git a/arch/arm/mach-at91/at91sam9.c b/arch/arm/mach-at91/at91sam9.c
index 8b890644d6f0..0aeabcf4ddb8 100644
--- a/arch/arm/mach-at91/at91sam9.c
+++ b/arch/arm/mach-at91/at91sam9.c
@@ -24,7 +24,7 @@ static void __init sam9_dt_device_init(void)
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
-static const char *at91_dt_board_compat[] __initdata = {
+static const char *at91_dt_board_compat[] __initconst = {
 	"atmel,at91sam9",
 	NULL
 };
-- 
2.1.0

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