[PATCH] usb: gadget: g_fs: Fix compilation warning

From: Michal Nazarewicz
Date: Wed Nov 17 2010 - 11:10:11 EST

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This commit fixes warning in f_fs.c introduced by "usb:
gadget: f_fs: remove custom printk() wrappers":

In file included from drivers/usb/gadget/g_ffs.c:64:
drivers/usb/gadget/f_fs.c:30:1: warning: "pr_fmt" redefined

Signed-off-by: Michal Nazarewicz <mina86@xxxxxxxxxx>
---
drivers/usb/gadget/f_fs.c | 78 +++++++++++++++++++++----------------------
drivers/usb/gadget/g_ffs.c | 2 +
2 files changed, 40 insertions(+), 40 deletions(-)

> On Fri, Nov 12, 2010 at 02:29:29PM +0100, Michal Nazarewicz wrote:
>> diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
>> @@ -27,6 +27,8 @@
>> /* #define DEBUG */
>> /* #define VERBOSE_DEBUG */
>>
>> +#define pr_fmt(fmt) "f_fs: " fmt "\n"

Greg KH <greg@xxxxxxxxx> writes:
> Hm, this causes a compiler warning. Care to fix this up with a
> follow-up patch as this isn't the way to do this...

Sorry about that. Fix included.

diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 5950c4b..255969c 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -27,8 +27,6 @@
/* #define DEBUG */
/* #define VERBOSE_DEBUG */

-#define pr_fmt(fmt) "f_fs: " fmt "\n"
-
#include <linux/blkdev.h>
#include <linux/pagemap.h>
#include <asm/unaligned.h>
@@ -46,13 +44,13 @@
#ifdef VERBOSE_DEBUG
# define pr_vdebug pr_debug
# define ffs_dump_mem(prefix, ptr, len) \
- print_hex_dump_bytes("f_fs" prefix ": ", DUMP_PREFIX_NONE, ptr, len)
+ print_hex_dump_bytes(pr_fmt(prefix ": "), DUMP_PREFIX_NONE, ptr, len)
#else
# define pr_vdebug(...) do { } while (0)
# define ffs_dump_mem(prefix, ptr, len) do { } while (0)
#endif /* VERBOSE_DEBUG */

-#define ENTER() pr_vdebug("%s()", __func__)
+#define ENTER() pr_vdebug("%s()\n", __func__)

/* The data structure and setup file ****************************************/
@@ -390,12 +388,12 @@ static int __ffs_ep0_queue_wait(struct ffs_data *ffs, char *data, size_t len)
static int __ffs_ep0_stall(struct ffs_data *ffs)
{
if (ffs->ev.can_stall) {
- pr_vdebug("ep0 stall");
+ pr_vdebug("ep0 stall\n");
usb_ep_set_halt(ffs->gadget->ep0);
ffs->setup_state = FFS_NO_SETUP;
return -EL2HLT;
} else {
- pr_debug("bogus ep0 stall!");
+ pr_debug("bogus ep0 stall!\n");
return -ESRCH;
}
}
@@ -436,7 +434,7 @@ static ssize_t ffs_ep0_write(struct file *file, const char __user *buf,

/* Handle data */
if (ffs->state == FFS_READ_DESCRIPTORS) {
- pr_info("read descriptors");
+ pr_info("read descriptors\n");
ret = __ffs_data_got_descs(ffs, data, len);
if (unlikely(ret < 0))
break;
@@ -444,7 +442,7 @@ static ssize_t ffs_ep0_write(struct file *file, const char __user *buf,
ffs->state = FFS_READ_STRINGS;
ret = len;
} else {
- pr_info("read strings");
+ pr_info("read strings\n");
ret = __ffs_data_got_strings(ffs, data, len);
if (unlikely(ret < 0))
break;
@@ -1110,7 +1108,7 @@ static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
/* Value limit */
eq = strchr(opts, '=');
if (unlikely(!eq)) {
- pr_err("'=' missing in %s", opts);
+ pr_err("'=' missing in %s\n", opts);
return -EINVAL;
}
*eq = 0;
@@ -1118,7 +1116,7 @@ static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
/* Parse value */
value = simple_strtoul(eq + 1, &end, 0);
if (unlikely(*end != ',' && *end != 0)) {
- pr_err("%s: invalid value: %s", opts, eq + 1);
+ pr_err("%s: invalid value: %s\n", opts, eq + 1);
return -EINVAL;
}

@@ -1153,7 +1151,7 @@ static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)

default:
invalid:
- pr_err("%s: invalid option", opts);
+ pr_err("%s: invalid option\n", opts);
return -EINVAL;
}

@@ -1227,9 +1225,9 @@ static int functionfs_init(void)

ret = register_filesystem(&ffs_fs_type);
if (likely(!ret))
- pr_info("file system registered");
+ pr_info("file system registered\n");
else
- pr_err("failed registering file system (%d)", ret);
+ pr_err("failed registering file system (%d)\n", ret);

return ret;
}
@@ -1238,7 +1236,7 @@ static void functionfs_cleanup(void)
{
ENTER();

- pr_info("unloading");
+ pr_info("unloading\n");
unregister_filesystem(&ffs_fs_type);
}

@@ -1268,7 +1266,7 @@ static void ffs_data_put(struct ffs_data *ffs)
ENTER();

if (unlikely(atomic_dec_and_test(&ffs->ref))) {
- pr_info("%s(): freeing", __func__);
+ pr_info("%s(): freeing\n", __func__);
ffs_data_clear(ffs);
BUG_ON(mutex_is_locked(&ffs->mutex) ||
spin_is_locked(&ffs->ev.waitq.lock) ||
@@ -1588,14 +1586,14 @@ static int __must_check ffs_do_desc(char *data, unsigned len,

/* At least two bytes are required: length and type */
if (len < 2) {
- pr_vdebug("descriptor too short");
+ pr_vdebug("descriptor too short\n");
return -EINVAL;
}

/* If we have at least as many bytes as the descriptor takes? */
length = _ds->bLength;
if (len < length) {
- pr_vdebug("descriptor longer then available data");
+ pr_vdebug("descriptor longer then available data\n");
return -EINVAL;
}

@@ -1603,14 +1601,14 @@ static int __must_check ffs_do_desc(char *data, unsigned len,
#define __entity_check_STRING(val) (val)
#define __entity_check_ENDPOINT(val) ((val) & USB_ENDPOINT_NUMBER_MASK)
#define __entity(type, val) do { \
- pr_vdebug("entity " #type "(%02x)", (val)); \
+ pr_vdebug("entity " #type "(%02x)\n", (val)); \
if (unlikely(!__entity_check_ ##type(val))) { \
- pr_vdebug("invalid entity's value"); \
+ pr_vdebug("invalid entity's value\n"); \
return -EINVAL; \
} \
ret = entity(FFS_ ##type, &val, _ds, priv); \
if (unlikely(ret < 0)) { \
- pr_debug("entity " #type "(%02x); ret = %d", \
+ pr_debug("entity " #type "(%02x); ret = %d\n", \
(val), ret); \
return ret; \
} \
@@ -1623,13 +1621,13 @@ static int __must_check ffs_do_desc(char *data, unsigned len,
case USB_DT_STRING:
case USB_DT_DEVICE_QUALIFIER:
/* function can't have any of those */
- pr_vdebug("descriptor reserved for gadget: %d",
+ pr_vdebug("descriptor reserved for gadget: %d\n",
_ds->bDescriptorType);
return -EINVAL;

case USB_DT_INTERFACE: {
struct usb_interface_descriptor *ds = (void *)_ds;
- pr_vdebug("interface descriptor");
+ pr_vdebug("interface descriptor\n");
if (length != sizeof *ds)
goto inv_length;

@@ -1641,7 +1639,7 @@ static int __must_check ffs_do_desc(char *data, unsigned len,

case USB_DT_ENDPOINT: {
struct usb_endpoint_descriptor *ds = (void *)_ds;
- pr_vdebug("endpoint descriptor");
+ pr_vdebug("endpoint descriptor\n");
if (length != USB_DT_ENDPOINT_SIZE &&
length != USB_DT_ENDPOINT_AUDIO_SIZE)
goto inv_length;
@@ -1656,7 +1654,7 @@ static int __must_check ffs_do_desc(char *data, unsigned len,

case USB_DT_INTERFACE_ASSOCIATION: {
struct usb_interface_assoc_descriptor *ds = (void *)_ds;
- pr_vdebug("interface association descriptor");
+ pr_vdebug("interface association descriptor\n");
if (length != sizeof *ds)
goto inv_length;
if (ds->iFunction)
@@ -1670,16 +1668,16 @@ static int __must_check ffs_do_desc(char *data, unsigned len,
case USB_DT_SECURITY:
case USB_DT_CS_RADIO_CONTROL:
/* TODO */
- pr_vdebug("unimplemented descriptor: %d", _ds->bDescriptorType);
+ pr_vdebug("unimplemented descriptor: %d\n", _ds->bDescriptorType);
return -EINVAL;

default:
/* We should never be here */
- pr_vdebug("unknown descriptor: %d", _ds->bDescriptorType);
+ pr_vdebug("unknown descriptor: %d\n", _ds->bDescriptorType);
return -EINVAL;

inv_length:
- pr_vdebug("invalid length: %d (descriptor %d)",
+ pr_vdebug("invalid length: %d (descriptor %d)\n",
_ds->bLength, _ds->bDescriptorType);
return -EINVAL;
}
@@ -1710,7 +1708,7 @@ static int __must_check ffs_do_descs(unsigned count, char *data, unsigned len,
/* Record "descriptor" entity */
ret = entity(FFS_DESCRIPTOR, (u8 *)num, (void *)data, priv);
if (unlikely(ret < 0)) {
- pr_debug("entity DESCRIPTOR(%02lx); ret = %d",
+ pr_debug("entity DESCRIPTOR(%02lx); ret = %d\n",
num, ret);
return ret;
}
@@ -1720,7 +1718,7 @@ static int __must_check ffs_do_descs(unsigned count, char *data, unsigned len,

ret = ffs_do_desc(data, len, entity, priv);
if (unlikely(ret < 0)) {
- pr_debug("%s returns %d", __func__, ret);
+ pr_debug("%s returns %d\n", __func__, ret);
return ret;
}

@@ -2013,11 +2011,11 @@ static void __ffs_event_add(struct ffs_data *ffs,
if ((*ev == rem_type1 || *ev == rem_type2) == neg)
*out++ = *ev;
else
- pr_vdebug("purging event %d", *ev);
+ pr_vdebug("purging event %d\n", *ev);
ffs->ev.count = out - ffs->ev.types;
}

- pr_vdebug("adding event %d", type);
+ pr_vdebug("adding event %d\n", type);
ffs->ev.types[ffs->ev.count++] = type;
wake_up_locked(&ffs->ev.waitq);
}
@@ -2064,7 +2062,7 @@ static int __ffs_func_bind_do_descs(enum ffs_entity_type type, u8 *valuep,
ffs_ep = func->eps + idx;

if (unlikely(ffs_ep->descs[isHS])) {
- pr_vdebug("two %sspeed descriptors for EP %d",
+ pr_vdebug("two %sspeed descriptors for EP %d\n",
isHS ? "high" : "full",
ds->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
return -EINVAL;
@@ -2080,7 +2078,7 @@ static int __ffs_func_bind_do_descs(enum ffs_entity_type type, u8 *valuep,
struct usb_request *req;
struct usb_ep *ep;

- pr_vdebug("autoconfig");
+ pr_vdebug("autoconfig\n");
ep = usb_ep_autoconfig(func->gadget, ds);
if (unlikely(!ep))
return -ENOTSUPP;
@@ -2150,7 +2148,7 @@ static int __ffs_func_bind_do_nums(enum ffs_entity_type type, u8 *valuep,
break;
}

- pr_vdebug("%02x -> %02x", *valuep, newValue);
+ pr_vdebug("%02x -> %02x\n", *valuep, newValue);
*valuep = newValue;
return 0;
}
@@ -2315,11 +2313,11 @@ static int ffs_func_setup(struct usb_function *f,

ENTER();

- pr_vdebug("creq->bRequestType = %02x", creq->bRequestType);
- pr_vdebug("creq->bRequest = %02x", creq->bRequest);
- pr_vdebug("creq->wValue = %04x", le16_to_cpu(creq->wValue));
- pr_vdebug("creq->wIndex = %04x", le16_to_cpu(creq->wIndex));
- pr_vdebug("creq->wLength = %04x", le16_to_cpu(creq->wLength));
+ pr_vdebug("creq->bRequestType = %02x\n", creq->bRequestType);
+ pr_vdebug("creq->bRequest = %02x\n", creq->bRequest);
+ pr_vdebug("creq->wValue = %04x\n", le16_to_cpu(creq->wValue));
+ pr_vdebug("creq->wIndex = %04x\n", le16_to_cpu(creq->wIndex));
+ pr_vdebug("creq->wLength = %04x\n", le16_to_cpu(creq->wLength));

/*
* Most requests directed to interface go through here
@@ -2419,7 +2417,7 @@ static char *ffs_prepare_buffer(const char * __user buf, size_t len)
return ERR_PTR(-EFAULT);
}

- pr_vdebug("Buffer from user space:");
+ pr_vdebug("Buffer from user space:\n");
ffs_dump_mem("", data, len);

return data;
diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c
index 3dc1989..ebf6970 100644
--- a/drivers/usb/gadget/g_ffs.c
+++ b/drivers/usb/gadget/g_ffs.c
@@ -19,6 +19,8 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/

+#define pr_fmt(fmt) "g_ffs: " fmt
+
#include <linux/module.h>
#include <linux/utsname.h>

--
1.7.1

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Next message: James Bottomley: "Re: [PATCH] scsi: Convert scsi_host->cmd_serial_number to oddnumbered atomic_t counter"
Previous message: Avi Kivity: "Re: [ANNOUNCE] New utility: 'trace'"
In reply to: Greg KH: "Re: linux-next: build warning after merge of the usb tree"
Next in thread: Greg KH: "Re: [PATCH] usb: gadget: g_fs: Fix compilation warning"
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