linux-kernel - [PATCH] sgi-xp: xpc_uv: Make structure xpc_arch_ops

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Date:   Thu,  8 Aug 2019 13:34:22 +0530
From:   Nishka Dasgupta <nishkadg.linux@...il.com>
To:     cpw@....com, robinmholt@...il.com, arnd@...db.de,
        gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org
Cc:     Nishka Dasgupta <nishkadg.linux@...il.com>
Subject: [PATCH] sgi-xp: xpc_uv: Make structure xpc_arch_ops_uv constant

The static xpc_arch_operations structure xpc_arch_ops_uv is only copied
into the structure xpc_arch_ops, after which it is never modified; nor
is it used in any other way. Hence it can be declared as a constant to
prevent unintended modifications of its fields.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@...il.com>
---
 drivers/misc/sgi-xp/xpc_uv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index 0c6de97dd347..89c4b04337d3 100644
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -1678,7 +1678,7 @@ xpc_received_payload_uv(struct xpc_channel *ch, void *payload)
 		XPC_DEACTIVATE_PARTITION(&xpc_partitions[ch->partid], ret);
 }
 
-static struct xpc_arch_operations xpc_arch_ops_uv = {
+static const struct xpc_arch_operations xpc_arch_ops_uv = {
 	.setup_partitions = xpc_setup_partitions_uv,
 	.teardown_partitions = xpc_teardown_partitions_uv,
 	.process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_uv,
-- 
2.19.1