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Date: Fri, 12 Nov 2010 14:29:29 +0100
From: Michal Nazarewicz <m.nazarewicz@...sung.com>
To: greg@...ah.com
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
Michal Nazarewicz <mina86@...a86.com>
Subject: [PATCH 2/2] usb: gadget: f_fs: remove custom printk() wrappers
From: Michal Nazarewicz <mina86@...a86.com>
This commit removes custom printk() wrappers from the f_fs.c
file. They served little purpose above what pr_*() family of
macros provides. Only FVDBG() has been left but renamed to
pr_vdebug() to match other uses.
Signed-off-by: Michal Nazarewicz <mina86@...a86.com>
---
drivers/usb/gadget/f_fs.c | 108 ++++++++++++++++++++-------------------------
1 files changed, 48 insertions(+), 60 deletions(-)
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 2880e52..8f5b679 100644
--- 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"
+
#include <linux/blkdev.h>
#include <linux/pagemap.h>
#include <asm/unaligned.h>
@@ -41,31 +43,16 @@
/* Debugging ****************************************************************/
-#define ffs_printk(level, fmt, args...) printk(level "f_fs: " fmt "\n", ## args)
-
-#define FERR(...) ffs_printk(KERN_ERR, __VA_ARGS__)
-#define FINFO(...) ffs_printk(KERN_INFO, __VA_ARGS__)
-
-#ifdef DEBUG
-# define FDBG(...) ffs_printk(KERN_DEBUG, __VA_ARGS__)
-#else
-# define FDBG(...) do { } while (0)
-#endif /* DEBUG */
-
-#ifdef VERBOSE_DEBUG
-# define FVDBG FDBG
-#else
-# define FVDBG(...) do { } while (0)
-#endif /* VERBOSE_DEBUG */
-
-#define ENTER() FVDBG("%s()", __func__)
-
#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)
#else
+# define pr_vdebug(...) do { } while (0)
# define ffs_dump_mem(prefix, ptr, len) do { } while (0)
-#endif
+#endif /* VERBOSE_DEBUG */
+
+#define ENTER() pr_vdebug("%s()", __func__)
/* The data structure and setup file ****************************************/
@@ -403,12 +390,12 @@ 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) {
- FVDBG("ep0 stall\n");
+ pr_vdebug("ep0 stall");
usb_ep_set_halt(ffs->gadget->ep0);
ffs->setup_state = FFS_NO_SETUP;
return -EL2HLT;
} else {
- FDBG("bogus ep0 stall!\n");
+ pr_debug("bogus ep0 stall!");
return -ESRCH;
}
}
@@ -449,7 +436,7 @@ static ssize_t ffs_ep0_write(struct file *file, const char __user *buf,
/* Handle data */
if (ffs->state == FFS_READ_DESCRIPTORS) {
- FINFO("read descriptors");
+ pr_info("read descriptors");
ret = __ffs_data_got_descs(ffs, data, len);
if (unlikely(ret < 0))
break;
@@ -457,7 +444,7 @@ static ssize_t ffs_ep0_write(struct file *file, const char __user *buf,
ffs->state = FFS_READ_STRINGS;
ret = len;
} else {
- FINFO("read strings");
+ pr_info("read strings");
ret = __ffs_data_got_strings(ffs, data, len);
if (unlikely(ret < 0))
break;
@@ -1123,7 +1110,7 @@ static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
/* Value limit */
eq = strchr(opts, '=');
if (unlikely(!eq)) {
- FERR("'=' missing in %s", opts);
+ pr_err("'=' missing in %s", opts);
return -EINVAL;
}
*eq = 0;
@@ -1131,7 +1118,7 @@ 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)) {
- FERR("%s: invalid value: %s", opts, eq + 1);
+ pr_err("%s: invalid value: %s", opts, eq + 1);
return -EINVAL;
}
@@ -1166,7 +1153,7 @@ static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
default:
invalid:
- FERR("%s: invalid option", opts);
+ pr_err("%s: invalid option", opts);
return -EINVAL;
}
@@ -1240,9 +1227,9 @@ static int functionfs_init(void)
ret = register_filesystem(&ffs_fs_type);
if (likely(!ret))
- FINFO("file system registered");
+ pr_info("file system registered");
else
- FERR("failed registering file system (%d)", ret);
+ pr_err("failed registering file system (%d)", ret);
return ret;
}
@@ -1251,7 +1238,7 @@ static void functionfs_cleanup(void)
{
ENTER();
- FINFO("unloading");
+ pr_info("unloading");
unregister_filesystem(&ffs_fs_type);
}
@@ -1281,7 +1268,7 @@ static void ffs_data_put(struct ffs_data *ffs)
ENTER();
if (unlikely(atomic_dec_and_test(&ffs->ref))) {
- FINFO("%s(): freeing", __func__);
+ pr_info("%s(): freeing", __func__);
ffs_data_clear(ffs);
BUG_ON(mutex_is_locked(&ffs->mutex) ||
spin_is_locked(&ffs->ev.waitq.lock) ||
@@ -1601,14 +1588,14 @@ static int __must_check ffs_do_desc(char *data, unsigned len,
/* At least two bytes are required: length and type */
if (len < 2) {
- FVDBG("descriptor too short");
+ pr_vdebug("descriptor too short");
return -EINVAL;
}
/* If we have at least as many bytes as the descriptor takes? */
length = _ds->bLength;
if (len < length) {
- FVDBG("descriptor longer then available data");
+ pr_vdebug("descriptor longer then available data");
return -EINVAL;
}
@@ -1616,15 +1603,15 @@ 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 { \
- FVDBG("entity " #type "(%02x)", (val)); \
+ pr_vdebug("entity " #type "(%02x)", (val)); \
if (unlikely(!__entity_check_ ##type(val))) { \
- FVDBG("invalid entity's value"); \
+ pr_vdebug("invalid entity's value"); \
return -EINVAL; \
} \
ret = entity(FFS_ ##type, &val, _ds, priv); \
if (unlikely(ret < 0)) { \
- FDBG("entity " #type "(%02x); ret = %d", \
- (val), ret); \
+ pr_debug("entity " #type "(%02x); ret = %d", \
+ (val), ret); \
return ret; \
} \
} while (0)
@@ -1636,13 +1623,13 @@ 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 */
- FVDBG("descriptor reserved for gadget: %d",
+ pr_vdebug("descriptor reserved for gadget: %d",
_ds->bDescriptorType);
return -EINVAL;
case USB_DT_INTERFACE: {
struct usb_interface_descriptor *ds = (void *)_ds;
- FVDBG("interface descriptor");
+ pr_vdebug("interface descriptor");
if (length != sizeof *ds)
goto inv_length;
@@ -1654,7 +1641,7 @@ static int __must_check ffs_do_desc(char *data, unsigned len,
case USB_DT_ENDPOINT: {
struct usb_endpoint_descriptor *ds = (void *)_ds;
- FVDBG("endpoint descriptor");
+ pr_vdebug("endpoint descriptor");
if (length != USB_DT_ENDPOINT_SIZE &&
length != USB_DT_ENDPOINT_AUDIO_SIZE)
goto inv_length;
@@ -1669,7 +1656,7 @@ static int __must_check ffs_do_desc(char *data, unsigned len,
case USB_DT_INTERFACE_ASSOCIATION: {
struct usb_interface_assoc_descriptor *ds = (void *)_ds;
- FVDBG("interface association descriptor");
+ pr_vdebug("interface association descriptor");
if (length != sizeof *ds)
goto inv_length;
if (ds->iFunction)
@@ -1683,17 +1670,17 @@ static int __must_check ffs_do_desc(char *data, unsigned len,
case USB_DT_SECURITY:
case USB_DT_CS_RADIO_CONTROL:
/* TODO */
- FVDBG("unimplemented descriptor: %d", _ds->bDescriptorType);
+ pr_vdebug("unimplemented descriptor: %d", _ds->bDescriptorType);
return -EINVAL;
default:
/* We should never be here */
- FVDBG("unknown descriptor: %d", _ds->bDescriptorType);
+ pr_vdebug("unknown descriptor: %d", _ds->bDescriptorType);
return -EINVAL;
inv_length:
- FVDBG("invalid length: %d (descriptor %d)",
- _ds->bLength, _ds->bDescriptorType);
+ pr_vdebug("invalid length: %d (descriptor %d)",
+ _ds->bLength, _ds->bDescriptorType);
return -EINVAL;
}
@@ -1723,7 +1710,8 @@ 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)) {
- FDBG("entity DESCRIPTOR(%02lx); ret = %d", num, ret);
+ pr_debug("entity DESCRIPTOR(%02lx); ret = %d",
+ num, ret);
return ret;
}
@@ -1732,7 +1720,7 @@ 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)) {
- FDBG("%s returns %d", __func__, ret);
+ pr_debug("%s returns %d", __func__, ret);
return ret;
}
@@ -2025,11 +2013,11 @@ static void __ffs_event_add(struct ffs_data *ffs,
if ((*ev == rem_type1 || *ev == rem_type2) == neg)
*out++ = *ev;
else
- FVDBG("purging event %d", *ev);
+ pr_vdebug("purging event %d", *ev);
ffs->ev.count = out - ffs->ev.types;
}
- FVDBG("adding event %d", type);
+ pr_vdebug("adding event %d", type);
ffs->ev.types[ffs->ev.count++] = type;
wake_up_locked(&ffs->ev.waitq);
}
@@ -2076,9 +2064,9 @@ 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])) {
- FVDBG("two %sspeed descriptors for EP %d",
- isHS ? "high" : "full",
- ds->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ pr_vdebug("two %sspeed descriptors for EP %d",
+ isHS ? "high" : "full",
+ ds->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
return -EINVAL;
}
ffs_ep->descs[isHS] = ds;
@@ -2092,7 +2080,7 @@ static int __ffs_func_bind_do_descs(enum ffs_entity_type type, u8 *valuep,
struct usb_request *req;
struct usb_ep *ep;
- FVDBG("autoconfig");
+ pr_vdebug("autoconfig");
ep = usb_ep_autoconfig(func->gadget, ds);
if (unlikely(!ep))
return -ENOTSUPP;
@@ -2162,7 +2150,7 @@ static int __ffs_func_bind_do_nums(enum ffs_entity_type type, u8 *valuep,
break;
}
- FVDBG("%02x -> %02x", *valuep, newValue);
+ pr_vdebug("%02x -> %02x", *valuep, newValue);
*valuep = newValue;
return 0;
}
@@ -2327,11 +2315,11 @@ static int ffs_func_setup(struct usb_function *f,
ENTER();
- FVDBG("creq->bRequestType = %02x", creq->bRequestType);
- FVDBG("creq->bRequest = %02x", creq->bRequest);
- FVDBG("creq->wValue = %04x", le16_to_cpu(creq->wValue));
- FVDBG("creq->wIndex = %04x", le16_to_cpu(creq->wIndex));
- FVDBG("creq->wLength = %04x", le16_to_cpu(creq->wLength));
+ 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));
/*
* Most requests directed to interface go through here
@@ -2431,7 +2419,7 @@ static char *ffs_prepare_buffer(const char * __user buf, size_t len)
return ERR_PTR(-EFAULT);
}
- FVDBG("Buffer from user space:");
+ pr_vdebug("Buffer from user space:");
ffs_dump_mem("", data, len);
return data;
--
1.7.2.3
--
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