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From: Colin King <colin.king@canonical.com>
To: Rudolf Marek <r.marek@assembler.cz>,
	Jean Delvare <jdelvare@suse.com>,
	Guenter Roeck <linux@roeck-us.net>,
	linux-hwmon@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] hwmon: (w83793): make const array watchdog_minors static, reduces object code size
Date: Fri, 22 Sep 2017 15:36:20 +0100	[thread overview]
Message-ID: <20170922143620.13780-1-colin.king@canonical.com> (raw)

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

Don't populate const array watchdog_minors on the stack, instead make it
static. Makes the object code smaller by over 350 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  48019	  38144	    256	  86419	  15193	drivers/hwmon/w83793.o

After:
   text	   data	    bss	    dec	    hex	filename
  47574	  38232	    256	  86062	  1502e	drivers/hwmon/w83793.o

(gcc 6.3.0, x86-64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/hwmon/w83793.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index dab5c515d5a3..5ba9d9f1daa1 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -1676,7 +1676,9 @@ static int w83793_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct device *dev = &client->dev;
-	const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 };
+	static const int watchdog_minors[] = {
+		WATCHDOG_MINOR, 212, 213, 214, 215
+	};
 	struct w83793_data *data;
 	int i, tmp, val, err;
 	int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
-- 
2.14.1


WARNING: multiple messages have this Message-ID (diff)
From: Colin King <colin.king@canonical.com>
To: Rudolf Marek <r.marek@assembler.cz>,
	Jean Delvare <jdelvare@suse.com>,
	Guenter Roeck <linux@roeck-us.net>,
	linux-hwmon@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] hwmon: (w83793): make const array watchdog_minors static, reduces object code size
Date: Fri, 22 Sep 2017 14:36:20 +0000	[thread overview]
Message-ID: <20170922143620.13780-1-colin.king@canonical.com> (raw)

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

Don't populate const array watchdog_minors on the stack, instead make it
static. Makes the object code smaller by over 350 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  48019	  38144	    256	  86419	  15193	drivers/hwmon/w83793.o

After:
   text	   data	    bss	    dec	    hex	filename
  47574	  38232	    256	  86062	  1502e	drivers/hwmon/w83793.o

(gcc 6.3.0, x86-64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/hwmon/w83793.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index dab5c515d5a3..5ba9d9f1daa1 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -1676,7 +1676,9 @@ static int w83793_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct device *dev = &client->dev;
-	const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 };
+	static const int watchdog_minors[] = {
+		WATCHDOG_MINOR, 212, 213, 214, 215
+	};
 	struct w83793_data *data;
 	int i, tmp, val, err;
 	int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
-- 
2.14.1


             reply	other threads:[~2017-09-22 14:36 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-22 14:36 Colin King [this message]
2017-09-22 14:36 ` [PATCH] hwmon: (w83793): make const array watchdog_minors static, reduces object code size Colin King
2017-10-01 14:16 ` Guenter Roeck
2017-10-01 14:16   ` Guenter Roeck

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