linux-kernel - [PATCH 3/4] mei: hdcp: Constify struct mei_cl_device

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Message-Id: <20200610224704.27082-4-rikard.falkeborn@gmail.com>
Date:   Thu, 11 Jun 2020 00:47:03 +0200
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     arnd@...db.de, gregkh@...uxfoundation.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>
Subject: [PATCH 3/4] mei: hdcp: Constify struct mei_cl_device_id

mei_hdcp_tbl[] is never modified and can be made const to allow the
compiler to put it in read-only memory.

Before:
   text    data     bss     dec     hex filename
  15844    5416       0   21260    530c drivers/misc/mei/hdcp/mei_hdcp.o

After:
   text    data     bss     dec     hex filename
  16004    5256       0   21260    530c drivers/misc/mei/hdcp/mei_hdcp.o

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 drivers/misc/mei/hdcp/mei_hdcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c
index 4c596c646ac0..e6c3dc595617 100644
--- a/drivers/misc/mei/hdcp/mei_hdcp.c
+++ b/drivers/misc/mei/hdcp/mei_hdcp.c
@@ -852,7 +852,7 @@ static int mei_hdcp_remove(struct mei_cl_device *cldev)
 #define MEI_UUID_HDCP GUID_INIT(0xB638AB7E, 0x94E2, 0x4EA2, 0xA5, \
 				0x52, 0xD1, 0xC5, 0x4B, 0x62, 0x7F, 0x04)
 
-static struct mei_cl_device_id mei_hdcp_tbl[] = {
+static const struct mei_cl_device_id mei_hdcp_tbl[] = {
 	{ .uuid = MEI_UUID_HDCP, .version = MEI_CL_VERSION_ANY },
 	{ }
 };
-- 
2.27.0