2015-08-02 20:02:44

by Adrian Remonda

[permalink] [raw]
Subject: [PATCHv2 0/6] Staging: most: several warnings fix reported by sparse

This patch series fix several warnings reported by the Sparse tool

Adrian Remonda (6):
Staging: most: static keyword missing
Staging: most: Fix sparse warning "Using plain integer as NULL
pointer"
Staging: most: static keyword missing
Staging: most: Fix sparse warning "Using plain integer as NULL
pointer"
Staging: most: static keyword missing
Staging: most: Fix sparse warning "Using plain integer as NULL
pointer"

drivers/staging/most/aim-cdev/cdev.c | 14 +++++++-------
drivers/staging/most/aim-network/networking.c | 4 ++--
drivers/staging/most/hdm-dim2/dim2_hal.c | 2 +-
drivers/staging/most/hdm-usb/hdm_usb.c | 14 +++++++-------
drivers/staging/most/mostcore/core.c | 16 ++++++++--------
5 files changed, 25 insertions(+), 25 deletions(-)

--
2.1.4


2015-08-02 20:03:18

by Adrian Remonda

[permalink] [raw]
Subject: [PATCHv2 1/6] Staging: most: static keyword missing

This is a patch to the mostcore/core.c file. It makes
several local functions and structures static to prevent global visibility.

Signed-off-by: Adrian Remonda <[email protected]>
---
drivers/staging/most/mostcore/core.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c
index f4f903404f1b..8d1b68dbeaf8 100644
--- a/drivers/staging/most/mostcore/core.c
+++ b/drivers/staging/most/mostcore/core.c
@@ -178,7 +178,7 @@ static void most_free_mbo_coherent(struct mbo *mbo)
* flush_channel_fifos - clear the channel fifos
* @c: pointer to channel object
*/
-void flush_channel_fifos(struct most_c_obj *c)
+static void flush_channel_fifos(struct most_c_obj *c)
{
unsigned long flags, hf_flags;
struct mbo *mbo, *tmp;
@@ -888,7 +888,7 @@ static ssize_t show_add_link(struct most_aim_obj *aim_obj,
* Input: "mdev0:ch0@ep_81"
* Output: *a -> "mdev0", *b -> "ch0@ep_81", *c == NULL
*/
-int split_string(char *buf, char **a, char **b, char **c)
+static int split_string(char *buf, char **a, char **b, char **c)
{
*a = strsep(&buf, ":");
if (!*a)
@@ -1006,7 +1006,7 @@ static ssize_t store_add_link(struct most_aim_obj *aim_obj,
return len;
}

-struct most_aim_attribute most_aim_attr_add_link =
+static struct most_aim_attribute most_aim_attr_add_link =
__ATTR(add_link, S_IRUGO | S_IWUSR, show_add_link, store_add_link);

static ssize_t show_remove_link(struct most_aim_obj *aim_obj,
@@ -1057,7 +1057,7 @@ static ssize_t store_remove_link(struct most_aim_obj *aim_obj,
return len;
}

-struct most_aim_attribute most_aim_attr_remove_link =
+static struct most_aim_attribute most_aim_attr_remove_link =
__ATTR(remove_link, S_IRUGO | S_IWUSR, show_remove_link, store_remove_link);

static struct attribute *most_aim_def_attrs[] = {
@@ -1121,14 +1121,14 @@ static void destroy_most_aim_obj(struct most_aim_obj *p)
/**
* Instantiation of the MOST bus
*/
-struct bus_type most_bus = {
+static struct bus_type most_bus = {
.name = "most",
};

/**
* Instantiation of the core driver
*/
-struct device_driver mostcore = {
+static struct device_driver mostcore = {
.name = "mostcore",
.bus = &most_bus,
};
@@ -1255,7 +1255,7 @@ static void arm_mbo(struct mbo *mbo)
*
* Returns the number of allocated and enqueued MBOs.
*/
-int arm_mbo_chain(struct most_c_obj *c, int dir, void (*compl)(struct mbo *))
+static int arm_mbo_chain(struct most_c_obj *c, int dir, void (*compl)(struct mbo *))
{
unsigned int i;
int retval;
--
2.1.4

2015-08-02 20:02:53

by Adrian Remonda

[permalink] [raw]
Subject: [PATCHv2 2/6] Staging: most: Fix sparse warning "Using plain integer as NULL pointer"

This patch fixes the warning generated by sparse: "Using plain integer
as NULL pointer" by replacing the offending 0 with NULL.


Signed-off-by: Adrian Remonda <[email protected]>
---
drivers/staging/most/mostcore/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c
index 8d1b68dbeaf8..7e338217779c 100644
--- a/drivers/staging/most/mostcore/core.c
+++ b/drivers/staging/most/mostcore/core.c
@@ -982,7 +982,7 @@ static ssize_t store_add_link(struct most_aim_obj *aim_obj,
if (ret)
return ret;

- if (mdev_devnod == 0 || *mdev_devnod == 0) {
+ if (mdev_devnod == NULL || *mdev_devnod == 0) {
snprintf(devnod_buf, PAGE_SIZE, "%s-%s", mdev, mdev_ch);
mdev_devnod = devnod_buf;
}
--
2.1.4

2015-08-02 20:03:14

by Adrian Remonda

[permalink] [raw]
Subject: [PATCHv2 3/6] Staging: most: static keyword missing

This is a patch to the most/hdm-usb/hdm_usb.c file. It
makes several local functions and structures static to prevent global visibility.

Signed-off-by: Adrian Remonda <[email protected]>
---
drivers/staging/most/hdm-usb/hdm_usb.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/most/hdm-usb/hdm_usb.c b/drivers/staging/most/hdm-usb/hdm_usb.c
index a4a3e266b3ef..f4de88403177 100644
--- a/drivers/staging/most/hdm-usb/hdm_usb.c
+++ b/drivers/staging/most/hdm-usb/hdm_usb.c
@@ -280,7 +280,7 @@ static unsigned int get_stream_frame_size(struct most_channel_config *cfg)
*
* Returns 0 on success or error code otherwise.
*/
-int hdm_poison_channel(struct most_interface *iface, int channel)
+static int hdm_poison_channel(struct most_interface *iface, int channel)
{
struct most_dev *mdev;

@@ -318,7 +318,7 @@ int hdm_poison_channel(struct most_interface *iface, int channel)
* This inserts the INIC hardware specific padding bytes into a streaming
* channel's buffer
*/
-int hdm_add_padding(struct most_dev *mdev, int channel, struct mbo *mbo)
+static int hdm_add_padding(struct most_dev *mdev, int channel, struct mbo *mbo)
{
struct most_channel_config *conf = &mdev->conf[channel];
unsigned int j, num_frames, frame_size;
@@ -354,7 +354,7 @@ int hdm_add_padding(struct most_dev *mdev, int channel, struct mbo *mbo)
* This takes the INIC hardware specific padding bytes off a streaming
* channel's buffer.
*/
-int hdm_remove_padding(struct most_dev *mdev, int channel, struct mbo *mbo)
+static int hdm_remove_padding(struct most_dev *mdev, int channel, struct mbo *mbo)
{
unsigned int j, num_frames, frame_size;
struct most_channel_config *const conf = &mdev->conf[channel];
@@ -629,7 +629,7 @@ static void hdm_read_completion(struct urb *urb)
*
* Context: Could in _some_ cases be interrupt!
*/
-int hdm_enqueue(struct most_interface *iface, int channel, struct mbo *mbo)
+static int hdm_enqueue(struct most_interface *iface, int channel, struct mbo *mbo)
{
struct most_dev *mdev;
struct buf_anchor *anchor;
@@ -730,7 +730,7 @@ _error:
* @channel: channel ID
* @conf: structure that holds the configuration information
*/
-int hdm_configure_channel(struct most_interface *iface, int channel,
+static int hdm_configure_channel(struct most_interface *iface, int channel,
struct most_channel_config *conf)
{
unsigned int num_frames;
@@ -808,7 +808,7 @@ exit:
* This triggers the USB vendor requests to read the hardware address and
* the current link status of the attached device.
*/
-int hdm_update_netinfo(struct most_dev *mdev)
+static int hdm_update_netinfo(struct most_dev *mdev)
{
int i;
u16 link;
@@ -856,7 +856,7 @@ int hdm_update_netinfo(struct most_dev *mdev)
* polls for the NI state of the INIC every 2 seconds.
*
*/
-void hdm_request_netinfo(struct most_interface *iface, int channel)
+static void hdm_request_netinfo(struct most_interface *iface, int channel)
{
struct most_dev *mdev;

--
2.1.4

2015-08-02 20:03:16

by Adrian Remonda

[permalink] [raw]
Subject: [PATCHv2 4/6] Staging: most: Fix sparse warning "Using plain integer as NULL pointer"

This patch fixes the warning generated by sparse: "Using plain integer
as NULL pointer" by replacing the offending 0 with NULL.


Signed-off-by: Adrian Remonda <[email protected]>
---
drivers/staging/most/hdm-dim2/dim2_hal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.c b/drivers/staging/most/hdm-dim2/dim2_hal.c
index 01b748944ee4..a54cf2cedac3 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hal.c
+++ b/drivers/staging/most/hdm-dim2/dim2_hal.c
@@ -889,7 +889,7 @@ struct dim_ch_state_t *DIM_GetChannelState(struct dim_channel *ch,
struct dim_ch_state_t *state_ptr)
{
if (!ch || !state_ptr)
- return 0;
+ return NULL;

state_ptr->ready = ch->state.level < 2;
state_ptr->done_buffers = ch->done_sw_buffers_number;
--
2.1.4

2015-08-02 20:03:20

by Adrian Remonda

[permalink] [raw]
Subject: [PATCHv2 5/6] Staging: most: static keyword missing

This is a patch to the most/aim_cdev.c file. It makes several
local functions and structures static to prevent global visibility.

Signed-off-by: Adrian Remonda <[email protected]>
---
drivers/staging/most/aim-cdev/cdev.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/most/aim-cdev/cdev.c b/drivers/staging/most/aim-cdev/cdev.c
index d5fb4a0e0818..047acfbef793 100644
--- a/drivers/staging/most/aim-cdev/cdev.c
+++ b/drivers/staging/most/aim-cdev/cdev.c
@@ -49,7 +49,7 @@ static struct list_head channel_list;
static spinlock_t ch_list_lock;


-struct aim_channel *get_channel(struct most_interface *iface, int id)
+static struct aim_channel *get_channel(struct most_interface *iface, int id)
{
struct aim_channel *channel, *tmp;
unsigned long flags;
@@ -288,7 +288,7 @@ static const struct file_operations channel_fops = {
* This frees allocated memory and removes the cdev that represents this
* channel in user space.
*/
-int aim_disconnect_channel(struct most_interface *iface, int channel_id)
+static int aim_disconnect_channel(struct most_interface *iface, int channel_id)
{
struct aim_channel *channel;
unsigned long flags;
@@ -328,7 +328,7 @@ int aim_disconnect_channel(struct most_interface *iface, int channel_id)
* This searches for the channel linked to this MBO and stores it in the local
* fifo buffer.
*/
-int aim_rx_completion(struct mbo *mbo)
+static int aim_rx_completion(struct mbo *mbo)
{
struct aim_channel *channel;

@@ -355,7 +355,7 @@ int aim_rx_completion(struct mbo *mbo)
*
* This wakes sleeping processes in the wait-queue.
*/
-int aim_tx_completion(struct most_interface *iface, int channel_id)
+static int aim_tx_completion(struct most_interface *iface, int channel_id)
{
struct aim_channel *channel;

@@ -375,7 +375,7 @@ int aim_tx_completion(struct most_interface *iface, int channel_id)
return 0;
}

-struct most_aim cdev_aim;
+static struct most_aim cdev_aim;

/**
* aim_probe - probe function of the driver module
@@ -389,7 +389,7 @@ struct most_aim cdev_aim;
*
* Returns 0 on success or error code otherwise.
*/
-int aim_probe(struct most_interface *iface, int channel_id,
+static int aim_probe(struct most_interface *iface, int channel_id,
struct most_channel_config *cfg,
struct kobject *parent, char *name)
{
@@ -462,7 +462,7 @@ error_alloc_channel:
return retval;
}

-struct most_aim cdev_aim = {
+static struct most_aim cdev_aim = {
.name = "cdev",
.probe_channel = aim_probe,
.disconnect_channel = aim_disconnect_channel,
--
2.1.4

2015-08-02 20:03:22

by Adrian Remonda

[permalink] [raw]
Subject: [PATCHv2 6/6] Staging: most: Fix sparse warning "Using plain integer as NULL pointer"

This patch fixes the warning generated by sparse: "Using plain integer
as NULL pointer" by replacing the offending 0 with NULL.

Signed-off-by: Adrian Remonda <[email protected]>
---
drivers/staging/most/aim-network/networking.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/most/aim-network/networking.c b/drivers/staging/most/aim-network/networking.c
index 4639c49240f1..a1e1bce16296 100644
--- a/drivers/staging/most/aim-network/networking.c
+++ b/drivers/staging/most/aim-network/networking.c
@@ -295,7 +295,7 @@ static void most_net_rm_netdev_safe(struct net_dev_context *nd)

unregister_netdev(nd->dev);
free_netdev(nd->dev);
- nd->dev = 0;
+ nd->dev = NULL;
}

static struct net_dev_context *get_net_dev_context(
@@ -311,7 +311,7 @@ static struct net_dev_context *get_net_dev_context(
}
}
spin_unlock(&list_lock);
- return 0;
+ return NULL;
}

static int aim_probe_channel(struct most_interface *iface, int channel_idx,
--
2.1.4

2015-08-02 21:10:16

by Greg Kroah-Hartman

[permalink] [raw]
Subject: Re: [PATCHv2 0/6] Staging: most: several warnings fix reported by sparse

On Sun, Aug 02, 2015 at 10:02:22PM +0200, Adrian Remonda wrote:
> This patch series fix several warnings reported by the Sparse tool
>
> Adrian Remonda (6):
> Staging: most: static keyword missing
> Staging: most: Fix sparse warning "Using plain integer as NULL
> pointer"
> Staging: most: static keyword missing
> Staging: most: Fix sparse warning "Using plain integer as NULL
> pointer"
> Staging: most: static keyword missing
> Staging: most: Fix sparse warning "Using plain integer as NULL
> pointer"

You used the same subject for half of these, please be more "unique".