diff mbox

[v2] macintosh: rack-meter: make of_device_ids const.

Message ID 7ce0e2734a7e95d3341c7424d124ddfd4bc82034.1497850925.git.arvind.yadav.cs@gmail.com (mailing list archive)
State Accepted
Commit 516fa8d0e19d854253460ea7692551e836e7e2b5
Headers show

Commit Message

Arvind Yadav June 19, 2017, 5:44 a.m. UTC
of_device_ids are not supposed to change at runtime. All functions
working with of_device_ids provided by <linux/of.h> work with const
of_device_ids. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
    407	    576	      0	    983	    3d7	drivers/macintosh/rack-meter.o

File size after constify rackmeter_match.
   text	   data	    bss	    dec	    hex	filename
    807	    176	      0	    983	    3d7	drivers/macintosh/rack-meter.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
Changes in v1:
              Subject was wrong. It should be constify rackmeter_match.

 drivers/macintosh/rack-meter.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Michael Ellerman Aug. 21, 2017, 1:39 p.m. UTC | #1
On Mon, 2017-06-19 at 05:44:25 UTC, Arvind Yadav wrote:
> of_device_ids are not supposed to change at runtime. All functions
> working with of_device_ids provided by <linux/of.h> work with const
> of_device_ids. So mark the non-const structs as const.
> 
> File size before:
>    text	   data	    bss	    dec	    hex	filename
>     407	    576	      0	    983	    3d7	drivers/macintosh/rack-meter.o
> 
> File size after constify rackmeter_match.
>    text	   data	    bss	    dec	    hex	filename
>     807	    176	      0	    983	    3d7	drivers/macintosh/rack-meter.o
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/516fa8d0e19d854253460ea7692551

cheers
diff mbox

Patch

diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index e199fd6..35582eb 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -579,7 +579,7 @@  static int rackmeter_shutdown(struct macio_dev* mdev)
 	return 0;
 }
 
-static struct of_device_id rackmeter_match[] = {
+static const struct of_device_id rackmeter_match[] = {
 	{ .name = "i2s" },
 	{ }
 };