linux-kernel - [PATCH 10/17] ia64: mark const init data with __initconst instead of _

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Date:	Thu, 29 Mar 2012 23:12:27 +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, Tony Luck <tony.luck@...el.com>,
	Fenghua Yu <fenghua.yu@...el.com>, linux-ia64@...r.kernel.org
Subject: [PATCH 10/17] ia64: 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: Tony Luck <tony.luck@...el.com>
Cc: Fenghua Yu <fenghua.yu@...el.com>
Cc: linux-ia64@...r.kernel.org
---
 arch/ia64/xen/irq_xen.c |    2 +-
 arch/ia64/xen/irq_xen.h |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/ia64/xen/irq_xen.c b/arch/ia64/xen/irq_xen.c
index 3bb1223..01f479e 100644
--- a/arch/ia64/xen/irq_xen.c
+++ b/arch/ia64/xen/irq_xen.c
@@ -433,7 +433,7 @@ xen_resend_irq(unsigned int vector)
 	(void)resend_irq_on_evtchn(vector);
 }
 
-const struct pv_irq_ops xen_irq_ops __initdata = {
+const struct pv_irq_ops xen_irq_ops __initconst = {
 	.register_ipi = xen_register_ipi,
 
 	.assign_irq_vector = xen_assign_irq_vector,
diff --git a/arch/ia64/xen/irq_xen.h b/arch/ia64/xen/irq_xen.h
index 26110f3..1778517 100644
--- a/arch/ia64/xen/irq_xen.h
+++ b/arch/ia64/xen/irq_xen.h
@@ -27,7 +27,7 @@ extern void (*late_time_init)(void);
 extern char xen_event_callback;
 void __init xen_init_IRQ(void);
 
-extern const struct pv_irq_ops xen_irq_ops __initdata;
+extern const struct pv_irq_ops xen_irq_ops __initconst;
 extern void xen_smp_intr_init(void);
 extern void xen_send_ipi(int cpu, int vec);
 
-- 
1.7.9.1

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