linux-kernel - [PATCH] hwrng: pseries: constify vio_device

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Date:   Thu, 17 Aug 2017 23:06:23 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     herbert@...dor.apana.org.au, mpm@...enic.com, mpe@...erman.id.au
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-crypto@...r.kernel.org
Subject: [PATCH] hwrng: pseries: constify vio_device_id

vio_device_id are not supposed to change at runtime. All functions
working with vio_device_id provided by <asm/vio.h> work with
const vio_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/char/hw_random/pseries-rng.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/hw_random/pseries-rng.c b/drivers/char/hw_random/pseries-rng.c
index d9f46b4..4e2a3f6 100644
--- a/drivers/char/hw_random/pseries-rng.c
+++ b/drivers/char/hw_random/pseries-rng.c
@@ -72,7 +72,7 @@ static int pseries_rng_remove(struct vio_dev *dev)
 	return 0;
 }
 
-static struct vio_device_id pseries_rng_driver_ids[] = {
+static const struct vio_device_id pseries_rng_driver_ids[] = {
 	{ "ibm,random-v1", "ibm,random"},
 	{ "", "" }
 };
-- 
2.7.4