diff mbox

[18/26] intel_scu_ipc: constify local structures

Message ID 1473599168-30561-19-git-send-email-Julia.Lawall@lip6.fr (mailing list archive)
State Rejected, archived
Headers show

Commit Message

Julia Lawall Sept. 11, 2016, 1:06 p.m. UTC
For structure types defined in the same file or local header files, find
top-level static structure declarations that have the following
properties:
1. Never reassigned.
2. Address never taken
3. Not passed to a top-level macro call
4. No pointer or array-typed field passed to a function or stored in a
variable.
Declare structures having all of these properties as const.

Done using Coccinelle.
Based on a suggestion by Joe Perches <joe@perches.com>.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
The semantic patch seems too long for a commit log, but is in the cover
letter.

 drivers/platform/x86/intel_scu_ipc.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)


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Comments

Julia Lawall Sept. 12, 2016, 12:37 p.m. UTC | #1
On Sun, 11 Sep 2016, Julia Lawall wrote:

> For structure types defined in the same file or local header files, find
> top-level static structure declarations that have the following
> properties:
> 1. Never reassigned.
> 2. Address never taken
> 3. Not passed to a top-level macro call
> 4. No pointer or array-typed field passed to a function or stored in a
> variable.
> Declare structures having all of these properties as const.

Actually, this patch should be dropped.  Coccinelle didn't recognize
kernel_ulong_t as a type, so it considered that eg

(kernel_ulong_t)&intel_scu_ipc_lincroft_pdata

was a bit and operation.

julia

> Done using Coccinelle.
> Based on a suggestion by Joe Perches <joe@perches.com>.
>
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
>
> ---
> The semantic patch seems too long for a commit log, but is in the cover
> letter.
>
>  drivers/platform/x86/intel_scu_ipc.c |    6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
> index e81daff..257837f 100644
> --- a/drivers/platform/x86/intel_scu_ipc.c
> +++ b/drivers/platform/x86/intel_scu_ipc.c
> @@ -72,20 +72,20 @@ struct intel_scu_ipc_pdata_t {
>  	u8 irq_mode;
>  };
>
> -static struct intel_scu_ipc_pdata_t intel_scu_ipc_lincroft_pdata = {
> +static const struct intel_scu_ipc_pdata_t intel_scu_ipc_lincroft_pdata = {
>  	.i2c_base = 0xff12b000,
>  	.i2c_len = 0x10,
>  	.irq_mode = 0,
>  };
>
>  /* Penwell and Cloverview */
> -static struct intel_scu_ipc_pdata_t intel_scu_ipc_penwell_pdata = {
> +static const struct intel_scu_ipc_pdata_t intel_scu_ipc_penwell_pdata = {
>  	.i2c_base = 0xff12b000,
>  	.i2c_len = 0x10,
>  	.irq_mode = 1,
>  };
>
> -static struct intel_scu_ipc_pdata_t intel_scu_ipc_tangier_pdata = {
> +static const struct intel_scu_ipc_pdata_t intel_scu_ipc_tangier_pdata = {
>  	.i2c_base  = 0xff00d000,
>  	.i2c_len = 0x10,
>  	.irq_mode = 0,
>
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diff mbox

Patch

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index e81daff..257837f 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -72,20 +72,20 @@  struct intel_scu_ipc_pdata_t {
 	u8 irq_mode;
 };
 
-static struct intel_scu_ipc_pdata_t intel_scu_ipc_lincroft_pdata = {
+static const struct intel_scu_ipc_pdata_t intel_scu_ipc_lincroft_pdata = {
 	.i2c_base = 0xff12b000,
 	.i2c_len = 0x10,
 	.irq_mode = 0,
 };
 
 /* Penwell and Cloverview */
-static struct intel_scu_ipc_pdata_t intel_scu_ipc_penwell_pdata = {
+static const struct intel_scu_ipc_pdata_t intel_scu_ipc_penwell_pdata = {
 	.i2c_base = 0xff12b000,
 	.i2c_len = 0x10,
 	.irq_mode = 1,
 };
 
-static struct intel_scu_ipc_pdata_t intel_scu_ipc_tangier_pdata = {
+static const struct intel_scu_ipc_pdata_t intel_scu_ipc_tangier_pdata = {
 	.i2c_base  = 0xff00d000,
 	.i2c_len = 0x10,
 	.irq_mode = 0,