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Subject[PATCHv2] usb: gadget: serial: replace hardcoded ttyGS with PREFIX
Replaces all hardcoded ttyGS strings with the PREFIX macro.
Due to the fact the strings are spread over different source files the
PREFIX definition is moved to u_serial.h

Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
---
v2: removed checkpatch.pl resovling (will be in a separate patch)
---
drivers/usb/gadget/f_acm.c | 36 ++++++++++++++++++------------------
drivers/usb/gadget/f_obex.c | 27 ++++++++++++++-------------
drivers/usb/gadget/f_serial.c | 10 +++++-----
drivers/usb/gadget/u_serial.c | 30 +++++++++++++++---------------
drivers/usb/gadget/u_serial.h | 1 +
5 files changed, 53 insertions(+), 51 deletions(-)

diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c
index ab1065a..c6e6457 100644
--- a/drivers/usb/gadget/f_acm.c
+++ b/drivers/usb/gadget/f_acm.c
@@ -313,15 +313,15 @@ static void acm_complete_set_line_coding(struct usb_ep *ep,
struct usb_composite_dev *cdev = acm->port.func.config->cdev;

if (req->status != 0) {
- DBG(cdev, "acm ttyGS%d completion, err %d\n",
- acm->port_num, req->status);
+ DBG(cdev, "acm %s%d completion, err %d\n",
+ PREFIX, acm->port_num, req->status);
return;
}

/* normal completion */
if (req->actual != sizeof(acm->port_line_coding)) {
- DBG(cdev, "acm ttyGS%d short resp, len %d\n",
- acm->port_num, req->actual);
+ DBG(cdev, "acm %s%d short resp, len %d\n",
+ PREFIX, acm->port_num, req->actual);
usb_ep_set_halt(ep);
} else {
struct usb_cdc_line_coding *value = req->buf;
@@ -404,15 +404,15 @@ invalid:

/* respond with data transfer or status phase? */
if (value >= 0) {
- DBG(cdev, "acm ttyGS%d req%02x.%02x v%04x i%04x l%d\n",
- acm->port_num, ctrl->bRequestType, ctrl->bRequest,
- w_value, w_index, w_length);
+ DBG(cdev, "acm %s%d req%02x.%02x v%04x i%04x l%d\n",
+ PREFIX, acm->port_num, ctrl->bRequestType,
+ ctrl->bRequest, w_value, w_index, w_length);
req->zero = 0;
req->length = value;
value = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC);
if (value < 0)
- ERROR(cdev, "acm response on ttyGS%d, err %d\n",
- acm->port_num, value);
+ ERROR(cdev, "acm response on %s%d, err %d\n",
+ PREFIX, acm->port_num, value);
}

/* device either stalls (value < 0) or reports success */
@@ -440,11 +440,11 @@ static int acm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)

} else if (intf == acm->data_id) {
if (acm->port.in->driver_data) {
- DBG(cdev, "reset acm ttyGS%d\n", acm->port_num);
+ DBG(cdev, "reset acm %s%d\n", PREFIX, acm->port_num);
gserial_disconnect(&acm->port);
}
if (!acm->port.in->desc || !acm->port.out->desc) {
- DBG(cdev, "activate acm ttyGS%d\n", acm->port_num);
+ DBG(cdev, "activate acm %s%d\n", PREFIX, acm->port_num);
if (config_ep_by_speed(cdev->gadget, f,
acm->port.in) ||
config_ep_by_speed(cdev->gadget, f,
@@ -467,7 +467,7 @@ static void acm_disable(struct usb_function *f)
struct f_acm *acm = func_to_acm(f);
struct usb_composite_dev *cdev = f->config->cdev;

- DBG(cdev, "acm ttyGS%d deactivated\n", acm->port_num);
+ DBG(cdev, "acm %s%d deactivated\n", PREFIX, acm->port_num);
gserial_disconnect(&acm->port);
usb_ep_disable(acm->notify);
acm->notify->driver_data = NULL;
@@ -522,8 +522,8 @@ static int acm_cdc_notify(struct f_acm *acm, u8 type, u16 value,

if (status < 0) {
ERROR(acm->port.func.config->cdev,
- "acm ttyGS%d can't notify serial state, %d\n",
- acm->port_num, status);
+ "acm %s%d can't notify serial state, %d\n",
+ PREFIX, acm->port_num, status);
acm->notify_req = req;
}

@@ -537,8 +537,8 @@ static int acm_notify_serial_state(struct f_acm *acm)

spin_lock(&acm->lock);
if (acm->notify_req) {
- DBG(cdev, "acm ttyGS%d serial state %04x\n",
- acm->port_num, acm->serial_state);
+ DBG(cdev, "acm %s%d serial state %04x\n",
+ PREFIX, acm->port_num, acm->serial_state);
status = acm_cdc_notify(acm, USB_CDC_NOTIFY_SERIAL_STATE,
0, &acm->serial_state, sizeof(acm->serial_state));
} else {
@@ -691,8 +691,8 @@ acm_bind(struct usb_configuration *c, struct usb_function *f)
if (status)
goto fail;

- DBG(cdev, "acm ttyGS%d: %s speed IN/%s OUT/%s NOTIFY/%s\n",
- acm->port_num,
+ DBG(cdev, "acm %s%d: %s speed IN/%s OUT/%s NOTIFY/%s\n",
+ PREFIX, acm->port_num,
gadget_is_superspeed(c->cdev->gadget) ? "super" :
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
acm->port.in->name, acm->port.out->name,
diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c
index aebae18..e0276fe 100644
--- a/drivers/usb/gadget/f_obex.c
+++ b/drivers/usb/gadget/f_obex.c
@@ -200,19 +200,19 @@ static int obex_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
if (alt != 0)
goto fail;
/* NOP */
- DBG(cdev, "reset obex ttyGS%d control\n", obex->port_num);
+ DBG(cdev, "reset obex %s%d control\n", PREFIX, obex->port_num);

} else if (intf == obex->data_id) {
if (alt > 1)
goto fail;

if (obex->port.in->driver_data) {
- DBG(cdev, "reset obex ttyGS%d\n", obex->port_num);
+ DBG(cdev, "reset obex %s%d\n", PREFIX, obex->port_num);
gserial_disconnect(&obex->port);
}

if (!obex->port.in->desc || !obex->port.out->desc) {
- DBG(cdev, "init obex ttyGS%d\n", obex->port_num);
+ DBG(cdev, "init obex %s%d\n", PREFIX, obex->port_num);
if (config_ep_by_speed(cdev->gadget, f,
obex->port.in) ||
config_ep_by_speed(cdev->gadget, f,
@@ -224,7 +224,8 @@ static int obex_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
}

if (alt == 1) {
- DBG(cdev, "activate obex ttyGS%d\n", obex->port_num);
+ DBG(cdev, "activate obex %s%d\n",
+ PREFIX, obex->port_num);
gserial_connect(&obex->port, obex->port_num);
}

@@ -252,7 +253,7 @@ static void obex_disable(struct usb_function *f)
struct f_obex *obex = func_to_obex(f);
struct usb_composite_dev *cdev = f->config->cdev;

- DBG(cdev, "obex ttyGS%d disable\n", obex->port_num);
+ DBG(cdev, "obex %s%d disable\n", PREFIX, obex->port_num);
gserial_disconnect(&obex->port);
}

@@ -269,8 +270,8 @@ static void obex_connect(struct gserial *g)

status = usb_function_activate(&g->func);
if (status)
- DBG(cdev, "obex ttyGS%d function activate --> %d\n",
- obex->port_num, status);
+ DBG(cdev, "obex %s%d function activate --> %d\n",
+ PREFIX, obex->port_num, status);
}

static void obex_disconnect(struct gserial *g)
@@ -284,8 +285,8 @@ static void obex_disconnect(struct gserial *g)

status = usb_function_deactivate(&g->func);
if (status)
- DBG(cdev, "obex ttyGS%d function deactivate --> %d\n",
- obex->port_num, status);
+ DBG(cdev, "obex %s%d function deactivate --> %d\n",
+ PREFIX, obex->port_num, status);
}

/*-------------------------------------------------------------------------*/
@@ -377,14 +378,14 @@ static int obex_bind(struct usb_configuration *c, struct usb_function *f)
*/
status = usb_function_deactivate(f);
if (status < 0)
- WARNING(cdev, "obex ttyGS%d: can't prevent enumeration, %d\n",
- obex->port_num, status);
+ WARNING(cdev, "obex %s%d: can't prevent enumeration, %d\n",
+ PREFIX, obex->port_num, status);
else
obex->can_activate = true;


- DBG(cdev, "obex ttyGS%d: %s speed IN/%s OUT/%s\n",
- obex->port_num,
+ DBG(cdev, "obex %s%d: %s speed IN/%s OUT/%s\n",
+ PREFIX, obex->port_num,
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
obex->port.in->name, obex->port.out->name);

diff --git a/drivers/usb/gadget/f_serial.c b/drivers/usb/gadget/f_serial.c
index 9ecbcbf..c62a31d 100644
--- a/drivers/usb/gadget/f_serial.c
+++ b/drivers/usb/gadget/f_serial.c
@@ -155,11 +155,11 @@ static int gser_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
/* we know alt == 0, so this is an activation or a reset */

if (gser->port.in->driver_data) {
- DBG(cdev, "reset generic ttyGS%d\n", gser->port_num);
+ DBG(cdev, "reset generic %s%d\n", PREFIX, gser->port_num);
gserial_disconnect(&gser->port);
}
if (!gser->port.in->desc || !gser->port.out->desc) {
- DBG(cdev, "activate generic ttyGS%d\n", gser->port_num);
+ DBG(cdev, "activate generic %s%d\n", PREFIX, gser->port_num);
if (config_ep_by_speed(cdev->gadget, f, gser->port.in) ||
config_ep_by_speed(cdev->gadget, f, gser->port.out)) {
gser->port.in->desc = NULL;
@@ -176,7 +176,7 @@ static void gser_disable(struct usb_function *f)
struct f_gser *gser = func_to_gser(f);
struct usb_composite_dev *cdev = f->config->cdev;

- DBG(cdev, "generic ttyGS%d deactivated\n", gser->port_num);
+ DBG(cdev, "generic %s%d deactivated\n", PREFIX, gser->port_num);
gserial_disconnect(&gser->port);
}

@@ -239,8 +239,8 @@ static int gser_bind(struct usb_configuration *c, struct usb_function *f)
gser_ss_function);
if (status)
goto fail;
- DBG(cdev, "generic ttyGS%d: %s speed IN/%s OUT/%s\n",
- gser->port_num,
+ DBG(cdev, "generic %s%d: %s speed IN/%s OUT/%s\n",
+ PREFIX, gser->port_num,
gadget_is_superspeed(c->cdev->gadget) ? "super" :
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
gser->port.in->name, gser->port.out->name);
diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
index ad0aca8..b87d386 100644
--- a/drivers/usb/gadget/u_serial.c
+++ b/drivers/usb/gadget/u_serial.c
@@ -57,8 +57,6 @@
* is managed in userspace ... OBEX, PTP, and MTP have been mentioned.
*/

-#define PREFIX "ttyGS"
-
/*
* gserial is the lifecycle interface, used by USB functions
* gs_port is the I/O nexus, used by the tty driver
@@ -778,8 +776,8 @@ static int gs_open(struct tty_struct *tty, struct file *file)
spin_lock_irq(&port->port_lock);

if (status) {
- pr_debug("gs_open: ttyGS%d (%p,%p) no buffer\n",
- port->port_num, tty, file);
+ pr_debug("gs_open: %s%d (%p,%p) no buffer\n",
+ PREFIX, port->port_num, tty, file);
port->openclose = false;
goto exit_unlock_port;
}
@@ -801,14 +799,14 @@ static int gs_open(struct tty_struct *tty, struct file *file)
if (port->port_usb) {
struct gserial *gser = port->port_usb;

- pr_debug("gs_open: start ttyGS%d\n", port->port_num);
+ pr_debug("gs_open: start %s%d\n", PREFIX, port->port_num);
gs_start_io(port);

if (gser->connect)
gser->connect(gser);
}

- pr_debug("gs_open: ttyGS%d (%p,%p)\n", port->port_num, tty, file);
+ pr_debug("gs_open: %s%d (%p,%p)\n", PREFIX, port->port_num, tty, file);

status = 0;

@@ -844,7 +842,8 @@ static void gs_close(struct tty_struct *tty, struct file *file)
goto exit;
}

- pr_debug("gs_close: ttyGS%d (%p,%p) ...\n", port->port_num, tty, file);
+ pr_debug("gs_close: %s%d (%p,%p) ...\n",
+ PREFIX, port->port_num, tty, file);

/* mark port as closing but in use; we can drop port lock
* and sleep if necessary
@@ -882,8 +881,8 @@ static void gs_close(struct tty_struct *tty, struct file *file)

port->openclose = false;

- pr_debug("gs_close: ttyGS%d (%p,%p) done!\n",
- port->port_num, tty, file);
+ pr_debug("gs_close: %s%d (%p,%p) done!\n",
+ PREFIX, port->port_num, tty, file);

wake_up(&port->port.close_wait);
exit:
@@ -896,8 +895,8 @@ static int gs_write(struct tty_struct *tty, const unsigned char *buf, int count)
unsigned long flags;
int status;

- pr_vdebug("gs_write: ttyGS%d (%p) writing %d bytes\n",
- port->port_num, tty, count);
+ pr_vdebug("gs_write: %s%d (%p) writing %d bytes\n",
+ PREFIX, port->port_num, tty, count);

spin_lock_irqsave(&port->port_lock, flags);
if (count)
@@ -996,8 +995,8 @@ static int gs_break_ctl(struct tty_struct *tty, int duration)
int status = 0;
struct gserial *gser;

- pr_vdebug("gs_break_ctl: ttyGS%d, send break (%d) \n",
- port->port_num, duration);
+ pr_vdebug("gs_break_ctl: %s%d, send break (%d)\n",
+ PREFIX, port->port_num, duration);

spin_lock_irq(&port->port_lock);
gser = port->port_usb;
@@ -1210,7 +1209,8 @@ int gserial_connect(struct gserial *gser, u8 port_num)
* protocol about open/close status (connect/disconnect).
*/
if (port->port.count) {
- pr_debug("gserial_connect: start ttyGS%d\n", port->port_num);
+ pr_debug("gserial_connect: start %s%d\n",
+ PREFIX, port->port_num);
gs_start_io(port);
if (gser->connect)
gser->connect(gser);
@@ -1324,7 +1324,7 @@ static int userial_init(void)
goto fail;
}

- pr_debug("%s: registered %d ttyGS* device%s\n", __func__,
+ pr_debug("%s: registered %d %s* device%s\n", __func__, PREFIX,
MAX_U_SERIAL_PORTS,
(MAX_U_SERIAL_PORTS == 1) ? "" : "s");

diff --git a/drivers/usb/gadget/u_serial.h b/drivers/usb/gadget/u_serial.h
index c20210c..9ab3614 100644
--- a/drivers/usb/gadget/u_serial.h
+++ b/drivers/usb/gadget/u_serial.h
@@ -15,6 +15,7 @@
#include <linux/usb/composite.h>
#include <linux/usb/cdc.h>

+#define PREFIX "ttyGS"
#define MAX_U_SERIAL_PORTS 4

struct f_serial_opts {
--
1.7.10.4


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