linux-kernel - [PATCH] [media] cx88: make const arrays default_addr_list and pvr2000_addr

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Message-Id: <20171102171659.13315-1-colin.king@canonical.com>
Date:   Thu,  2 Nov 2017 17:16:59 +0000
From:   Colin King <colin.king@...onical.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sean Young <sean@...s.org>, linux-media@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [media] cx88: make const arrays default_addr_list and pvr2000_addr_list static

From: Colin Ian King <colin.king@...onical.com>

Don't populate arrays default_addr_list and pvr2000_addr_list on the
stack but instead make them static. Makes the object code smaller by
over 340 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  12520	   2800	     64	  15384	   3c18	drivers/media/pci/cx88/cx88-input.o

After:
   text	   data	    bss	    dec	    hex	filename
  12142	   2832	     64	  15038	   3abe	drivers/media/pci/cx88/cx88-input.o

(gcc version 7.2.0 x86_64)

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/media/pci/cx88/cx88-input.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/pci/cx88/cx88-input.c b/drivers/media/pci/cx88/cx88-input.c
index e02449bf2041..4e9953e61a12 100644
--- a/drivers/media/pci/cx88/cx88-input.c
+++ b/drivers/media/pci/cx88/cx88-input.c
@@ -593,11 +593,11 @@ static int get_key_pvr2000(struct IR_i2c *ir, enum rc_proto *protocol,
 void cx88_i2c_init_ir(struct cx88_core *core)
 {
 	struct i2c_board_info info;
-	const unsigned short default_addr_list[] = {
+	static const unsigned short default_addr_list[] = {
 		0x18, 0x6b, 0x71,
 		I2C_CLIENT_END
 	};
-	const unsigned short pvr2000_addr_list[] = {
+	static const unsigned short pvr2000_addr_list[] = {
 		0x18, 0x1a,
 		I2C_CLIENT_END
 	};
-- 
2.14.1