| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Fri, 2 Sep 2016 15:58:01 -0700
From: Joe Perches <joe@...ches.com>
To: Jan Dumon <j.dumon@...ion.com>
Cc: linux-usb@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] hso: Use a more common logging style
Macros that end in an underscore are just odd.
Add hso_dbg(level, fmt, ...) and use it everwhere instead.
Several uses had additional unnecessary newlines as the
macro added a newline. Remove the newline from the macro
and add newlines to each use as appropriate.
Remove now unused D<digit> macros.
Signed-off-by: Joe Perches <joe@...ches.com>
---
drivers/net/usb/hso.c | 97 +++++++++++++++++++++++----------------------------
1 file changed, 44 insertions(+), 53 deletions(-)
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index c5544d3..6c37512 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -108,23 +108,12 @@
/*****************************************************************************/
/* Debugging functions */
/*****************************************************************************/
-#define D__(lvl_, fmt, arg...) \
- do { \
- printk(lvl_ "[%d:%s]: " fmt "\n", \
- __LINE__, __func__, ## arg); \
- } while (0)
-
-#define D_(lvl, args...) \
- do { \
- if (lvl & debug) \
- D__(KERN_INFO, args); \
- } while (0)
-
-#define D1(args...) D_(0x01, ##args)
-#define D2(args...) D_(0x02, ##args)
-#define D3(args...) D_(0x04, ##args)
-#define D4(args...) D_(0x08, ##args)
-#define D5(args...) D_(0x10, ##args)
+#define hso_dbg(lvl, fmt, ...) \
+do { \
+ if ((lvl) & debug) \
+ pr_info("[%d:%s] " fmt, \
+ __LINE__, __func__, ##__VA_ARGS__); \
+} while (0)
/*****************************************************************************/
/* Enumerators */
@@ -709,7 +698,8 @@ static void handle_usb_error(int status, const char *function,
}
/* log a meaningful explanation of an USB status */
- D1("%s: received USB status - %s (%d)", function, explanation, status);
+ hso_dbg(0x1, "%s: received USB status - %s (%d)\n",
+ function, explanation, status);
}
/* Network interface functions */
@@ -808,7 +798,7 @@ static netdev_tx_t hso_net_start_xmit(struct sk_buff *skb,
DUMP1(skb->data, skb->len);
/* Copy it from kernel memory to OUR memory */
memcpy(odev->mux_bulk_tx_buf, skb->data, skb->len);
- D1("len: %d/%d", skb->len, MUX_BULK_TX_BUF_SIZE);
+ hso_dbg(0x1, "len: %d/%d\n", skb->len, MUX_BULK_TX_BUF_SIZE);
/* Fill in the URB for shipping it out. */
usb_fill_bulk_urb(odev->mux_bulk_tx_urb,
@@ -872,7 +862,7 @@ static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt,
unsigned char *tmp_rx_buf;
/* log if needed */
- D1("Rx %d bytes", count);
+ hso_dbg(0x1, "Rx %d bytes\n", count);
DUMP(ip_pkt, min(128, (int)count));
while (count) {
@@ -912,7 +902,7 @@ static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt,
frame_len);
if (!odev->skb_rx_buf) {
/* We got no receive buffer. */
- D1("could not allocate memory");
+ hso_dbg(0x1, "could not allocate memory\n");
odev->rx_parse_state = WAIT_SYNC;
continue;
}
@@ -972,11 +962,11 @@ static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt,
break;
case WAIT_SYNC:
- D1(" W_S");
+ hso_dbg(0x1, " W_S\n");
count = 0;
break;
default:
- D1(" ");
+ hso_dbg(0x1, "\n");
count--;
break;
}
@@ -1020,7 +1010,7 @@ static void read_bulk_callback(struct urb *urb)
/* Sanity check */
if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) {
- D1("BULK IN callback but driver is not active!");
+ hso_dbg(0x1, "BULK IN callback but driver is not active!\n");
return;
}
usb_mark_last_busy(urb->dev);
@@ -1116,7 +1106,7 @@ static void _hso_serial_set_termios(struct tty_struct *tty,
return;
}
- D4("port %d", serial->minor);
+ hso_dbg(0x8, "port %d\n", serial->minor);
/*
* Fix up unsupported bits
@@ -1205,11 +1195,11 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb)
struct hso_serial *serial = urb->context;
int status = urb->status;
- D4("\n--- Got serial_read_bulk callback %02x ---", status);
+ hso_dbg(0x8, "--- Got serial_read_bulk callback %02x ---\n", status);
/* sanity check */
if (!serial) {
- D1("serial == NULL");
+ hso_dbg(0x1, "serial == NULL\n");
return;
}
if (status) {
@@ -1217,7 +1207,7 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb)
return;
}
- D1("Actual length = %d\n", urb->actual_length);
+ hso_dbg(0x1, "Actual length = %d\n", urb->actual_length);
DUMP1(urb->transfer_buffer, urb->actual_length);
/* Anyone listening? */
@@ -1266,7 +1256,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
if (serial == NULL || serial->magic != HSO_SERIAL_MAGIC) {
WARN_ON(1);
tty->driver_data = NULL;
- D1("Failed to open port");
+ hso_dbg(0x1, "Failed to open port\n");
return -ENODEV;
}
@@ -1275,7 +1265,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
if (result < 0)
goto err_out;
- D1("Opening %d", serial->minor);
+ hso_dbg(0x1, "Opening %d\n", serial->minor);
/* setup */
tty->driver_data = serial;
@@ -1298,7 +1288,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
kref_get(&serial->parent->ref);
}
} else {
- D1("Port was already open");
+ hso_dbg(0x1, "Port was already open\n");
}
usb_autopm_put_interface(serial->parent->interface);
@@ -1317,7 +1307,7 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
struct hso_serial *serial = tty->driver_data;
u8 usb_gone;
- D1("Closing serial port");
+ hso_dbg(0x1, "Closing serial port\n");
/* Open failed, no close cleanup required */
if (serial == NULL)
@@ -1412,8 +1402,8 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
unsigned long flags;
if (old)
- D5("Termios called with: cflags new[%d] - old[%d]",
- tty->termios.c_cflag, old->c_cflag);
+ hso_dbg(0x16, "Termios called with: cflags new[%d] - old[%d]\n",
+ tty->termios.c_cflag, old->c_cflag);
/* the actual setup */
spin_lock_irqsave(&serial->serial_lock, flags);
@@ -1649,7 +1639,7 @@ static int hso_serial_tiocmget(struct tty_struct *tty)
/* sanity check */
if (!serial) {
- D1("no tty structures");
+ hso_dbg(0x1, "no tty structures\n");
return -EINVAL;
}
spin_lock_irq(&serial->serial_lock);
@@ -1682,7 +1672,7 @@ static int hso_serial_tiocmset(struct tty_struct *tty,
/* sanity check */
if (!serial) {
- D1("no tty structures");
+ hso_dbg(0x1, "no tty structures\n");
return -EINVAL;
}
@@ -1721,7 +1711,7 @@ static int hso_serial_ioctl(struct tty_struct *tty,
{
struct hso_serial *serial = tty->driver_data;
int ret = 0;
- D4("IOCTL cmd: %d, arg: %ld", cmd, arg);
+ hso_dbg(0x8, "IOCTL cmd: %d, arg: %ld\n", cmd, arg);
if (!serial)
return -ENODEV;
@@ -1808,9 +1798,9 @@ static int mux_device_request(struct hso_serial *serial, u8 type, u16 port,
pipe = usb_sndctrlpipe(serial->parent->usb, 0);
}
/* syslog */
- D2("%s command (%02x) len: %d, port: %d",
- type == USB_CDC_GET_ENCAPSULATED_RESPONSE ? "Read" : "Write",
- ctrl_req->bRequestType, ctrl_req->wLength, port);
+ hso_dbg(0x2, "%s command (%02x) len: %d, port: %d\n",
+ type == USB_CDC_GET_ENCAPSULATED_RESPONSE ? "Read" : "Write",
+ ctrl_req->bRequestType, ctrl_req->wLength, port);
/* Load ctrl urb */
ctrl_urb->transfer_flags = 0;
@@ -1876,11 +1866,11 @@ static void intr_callback(struct urb *urb)
handle_usb_error(status, __func__, NULL);
return;
}
- D4("\n--- Got intr callback 0x%02X ---", status);
+ hso_dbg(0x8, "--- Got intr callback 0x%02X ---\n", status);
/* what request? */
port_req = urb->transfer_buffer;
- D4(" port_req = 0x%.2X\n", *port_req);
+ hso_dbg(0x8, "port_req = 0x%.2X\n", *port_req);
/* loop over all muxed ports to find the one sending this */
for (i = 0; i < 8; i++) {
/* max 8 channels on MUX */
@@ -1888,7 +1878,8 @@ static void intr_callback(struct urb *urb)
serial = get_serial_by_shared_int_and_type(shared_int,
(1 << i));
if (serial != NULL) {
- D1("Pending read interrupt on port %d\n", i);
+ hso_dbg(0x1, "Pending read interrupt on port %d\n",
+ i);
spin_lock(&serial->serial_lock);
if (serial->rx_state == RX_IDLE &&
serial->port.count > 0) {
@@ -1900,8 +1891,8 @@ static void intr_callback(struct urb *urb)
} else
serial->rx_state = RX_PENDING;
} else {
- D1("Already a read pending on "
- "port %d or port not open\n", i);
+ hso_dbg(0x1, "Already a read pending on port %d or port not open\n",
+ i);
}
spin_unlock(&serial->serial_lock);
}
@@ -1933,7 +1924,7 @@ static void hso_std_serial_write_bulk_callback(struct urb *urb)
/* sanity check */
if (!serial) {
- D1("serial == NULL");
+ hso_dbg(0x1, "serial == NULL\n");
return;
}
@@ -1948,7 +1939,7 @@ static void hso_std_serial_write_bulk_callback(struct urb *urb)
tty_port_tty_wakeup(&serial->port);
hso_kick_transmit(serial);
- D1(" ");
+ hso_dbg(0x1, "\n");
}
/* called for writing diag or CS serial port */
@@ -1996,8 +1987,8 @@ static void ctrl_callback(struct urb *urb)
/* what request? */
req = (struct usb_ctrlrequest *)(urb->setup_packet);
- D4("\n--- Got muxed ctrl callback 0x%02X ---", status);
- D4("Actual length of urb = %d\n", urb->actual_length);
+ hso_dbg(0x8, "--- Got muxed ctrl callback 0x%02X ---\n", status);
+ hso_dbg(0x8, "Actual length of urb = %d\n", urb->actual_length);
DUMP1(urb->transfer_buffer, urb->actual_length);
if (req->bRequestType ==
@@ -2023,7 +2014,7 @@ static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial)
/* Sanity check */
if (urb == NULL || serial == NULL) {
- D1("serial = NULL");
+ hso_dbg(0x1, "serial = NULL\n");
return -2;
}
@@ -2035,7 +2026,7 @@ static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial)
}
/* Push data to tty */
- D1("data to push to tty");
+ hso_dbg(0x1, "data to push to tty\n");
count = tty_buffer_request_room(&serial->port, urb->actual_length);
if (count >= urb->actual_length) {
tty_insert_flip_string(&serial->port, urb->transfer_buffer,
@@ -2415,7 +2406,7 @@ static void hso_net_init(struct net_device *net)
{
struct hso_net *hso_net = netdev_priv(net);
- D1("sizeof hso_net is %d", (int)sizeof(*hso_net));
+ hso_dbg(0x1, "sizeof hso_net is %zu\n", sizeof(*hso_net));
/* fill in the other fields */
net->netdev_ops = &hso_netdev_ops;
@@ -3301,7 +3292,7 @@ MODULE_DESCRIPTION(MOD_DESCRIPTION);
MODULE_LICENSE(MOD_LICENSE);
/* change the debug level (eg: insmod hso.ko debug=0x04) */
-MODULE_PARM_DESC(debug, "Level of debug [0x01 | 0x02 | 0x04 | 0x08 | 0x10]");
+MODULE_PARM_DESC(debug, "debug level mask [0x01 | 0x02 | 0x04 | 0x08 | 0x10]");
module_param(debug, int, S_IRUGO | S_IWUSR);
/* set the major tty number (eg: insmod hso.ko tty_major=245) */
--
2.10.0.rc2.1.g053435c
Powered by blists - more mailing lists