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Groups > linux.kernel > #1554473

[PATCH] soc: dove: constify reset_control_ops structures

From Bhumika Goyal <bhumirks@gmail.com>
Newsgroups linux.kernel
Subject [PATCH] soc: dove: constify reset_control_ops structures
Date 2017-01-09 17:40 +0100
Message-ID <sXL9g-6vS-37@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Declare reset_control_ops as const as they are only stored in the ops
field of a reset_controller_dev structure. This field is of type const
struct reset_control_ops *, so reset_control_ops structures having this
property can be declared as const.
Done using Coccinelle:

@r1 disable optional_qualifier@
identifier i;
position p;
@@
static struct reset_control_ops i@p={...};

@ok1@
identifier r1.i;
position p;
struct reset_controller_dev x;
@@
x.ops=&i@p;

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct reset_control_ops i;

File size before: drivers/soc/dove/pmu.o
   text	   data	    bss	    dec	    hex	filename
   2447	    112	     16	   2575	    a0f	drivers/soc/dove/pmu.o

File size after: drivers/soc/dove/pmu.o
   text	   data	    bss	    dec	    hex	filename
   2479	     80	     16	   2575	    a0f	drivers/soc/dove/pmu.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 drivers/soc/dove/pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/dove/pmu.c b/drivers/soc/dove/pmu.c
index 039374e..95d77ec 100644
--- a/drivers/soc/dove/pmu.c
+++ b/drivers/soc/dove/pmu.c
@@ -87,7 +87,7 @@ static int pmu_reset_deassert(struct reset_controller_dev *rc, unsigned long id)
 	return 0;
 }
 
-static struct reset_control_ops pmu_reset_ops = {
+static const struct reset_control_ops pmu_reset_ops = {
 	.reset = pmu_reset_reset,
 	.assert = pmu_reset_assert,
 	.deassert = pmu_reset_deassert,
-- 
1.9.1

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Thread

[PATCH] soc: dove: constify reset_control_ops structures Bhumika Goyal <bhumirks@gmail.com> - 2017-01-09 17:40 +0100
  Re: [PATCH] soc: dove: constify reset_control_ops structures Gregory CLEMENT <gregory.clement@free-electrons.com> - 2017-01-13 17:40 +0100
    Re: [PATCH] soc: dove: constify reset_control_ops structures Gregory CLEMENT <gregory.clement@free-electrons.com> - 2017-01-13 18:00 +0100
    Re: [PATCH] soc: dove: constify reset_control_ops structures Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-01-13 18:00 +0100

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