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[1/2] nvmem: core: constify nvmem_cell_read_variable_common() return value

Message ID 20210521140031.1.Ibaca694aedfaff823feefa06b29ae746c641dd1a@changeid
State Accepted
Commit 1f7b4d87874624f4beb25253900a25306a193b8b
Headers show
Series [1/2] nvmem: core: constify nvmem_cell_read_variable_common() return value | expand

Commit Message

Doug Anderson May 21, 2021, 9 p.m. UTC
The caller doesn't modify the memory pointed to by the pointer so it
can be const.

Suggested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
---

 drivers/nvmem/core.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

Comments

Srinivas Kandagatla May 28, 2021, 8:25 a.m. UTC | #1
On 21/05/2021 22:00, Douglas Anderson wrote:
> The caller doesn't modify the memory pointed to by the pointer so it

> can be const.

> 

> Suggested-by: Stephen Boyd <swboyd@chromium.org>

> Signed-off-by: Douglas Anderson <dianders@chromium.org>

> ---

> 


Applied both thanks,

--srini
>   drivers/nvmem/core.c | 10 +++++-----

>   1 file changed, 5 insertions(+), 5 deletions(-)

> 

> diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c

> index f9c9c9859919..4868aa876e1b 100644

> --- a/drivers/nvmem/core.c

> +++ b/drivers/nvmem/core.c

> @@ -1609,9 +1609,9 @@ int nvmem_cell_read_u64(struct device *dev, const char *cell_id, u64 *val)

>   }

>   EXPORT_SYMBOL_GPL(nvmem_cell_read_u64);

>   

> -static void *nvmem_cell_read_variable_common(struct device *dev,

> -					     const char *cell_id,

> -					     size_t max_len, size_t *len)

> +static const void *nvmem_cell_read_variable_common(struct device *dev,

> +						   const char *cell_id,

> +						   size_t max_len, size_t *len)

>   {

>   	struct nvmem_cell *cell;

>   	int nbits;

> @@ -1655,7 +1655,7 @@ int nvmem_cell_read_variable_le_u32(struct device *dev, const char *cell_id,

>   				    u32 *val)

>   {

>   	size_t len;

> -	u8 *buf;

> +	const u8 *buf;

>   	int i;

>   

>   	buf = nvmem_cell_read_variable_common(dev, cell_id, sizeof(*val), &len);

> @@ -1686,7 +1686,7 @@ int nvmem_cell_read_variable_le_u64(struct device *dev, const char *cell_id,

>   				    u64 *val)

>   {

>   	size_t len;

> -	u8 *buf;

> +	const u8 *buf;

>   	int i;

>   

>   	buf = nvmem_cell_read_variable_common(dev, cell_id, sizeof(*val), &len);

>
diff mbox series

Patch

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index f9c9c9859919..4868aa876e1b 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -1609,9 +1609,9 @@  int nvmem_cell_read_u64(struct device *dev, const char *cell_id, u64 *val)
 }
 EXPORT_SYMBOL_GPL(nvmem_cell_read_u64);
 
-static void *nvmem_cell_read_variable_common(struct device *dev,
-					     const char *cell_id,
-					     size_t max_len, size_t *len)
+static const void *nvmem_cell_read_variable_common(struct device *dev,
+						   const char *cell_id,
+						   size_t max_len, size_t *len)
 {
 	struct nvmem_cell *cell;
 	int nbits;
@@ -1655,7 +1655,7 @@  int nvmem_cell_read_variable_le_u32(struct device *dev, const char *cell_id,
 				    u32 *val)
 {
 	size_t len;
-	u8 *buf;
+	const u8 *buf;
 	int i;
 
 	buf = nvmem_cell_read_variable_common(dev, cell_id, sizeof(*val), &len);
@@ -1686,7 +1686,7 @@  int nvmem_cell_read_variable_le_u64(struct device *dev, const char *cell_id,
 				    u64 *val)
 {
 	size_t len;
-	u8 *buf;
+	const u8 *buf;
 	int i;
 
 	buf = nvmem_cell_read_variable_common(dev, cell_id, sizeof(*val), &len);