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net: cosa: fix the comments style issue

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Networking block comments don't use an empty /* line,
use /* Comment...

Block comments use * on subsequent lines.
Block comments use a trailing */ on a separate line.

This patch fixes the comments style issues.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Peng Li 2021-06-16 15:23:32 +08:00 committed by David S. Miller
parent b4d5f1e2cd
commit c0a963e25d
1 changed files with 33 additions and 56 deletions
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89
drivers/net/wan/cosa.c
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@ -1,13 +1,11 @@
// SPDX-License-Identifier: GPL-2.0-or-later // SPDX-License-Identifier: GPL-2.0-or-later
/* $Id: cosa.c,v 1.31 2000/03/08 17:47:16 kas Exp $ */ /* $Id: cosa.c,v 1.31 2000/03/08 17:47:16 kas Exp $ */
/* /* Copyright (C) 1995-1997 Jan "Yenya" Kasprzak <kas@fi.muni.cz>
* Copyright (C) 1995-1997 Jan "Yenya" Kasprzak <kas@fi.muni.cz>
* Generic HDLC port Copyright (C) 2008 Krzysztof Halasa <khc@pm.waw.pl> * Generic HDLC port Copyright (C) 2008 Krzysztof Halasa <khc@pm.waw.pl>
*/ */
/* /* The driver for the SRP and COSA synchronous serial cards.
* The driver for the SRP and COSA synchronous serial cards.
* *
* HARDWARE INFO * HARDWARE INFO
* *
@ -152,28 +150,25 @@ struct cosa_data {
char *type; /* card type */ char *type; /* card type */
}; };
/* /* Define this if you want all the possible ports to be autoprobed.
* Define this if you want all the possible ports to be autoprobed.
* It is here but it probably is not a good idea to use this. * It is here but it probably is not a good idea to use this.
*/ */
/* #define COSA_ISA_AUTOPROBE 1 */ /* #define COSA_ISA_AUTOPROBE 1*/
/* /* Character device major number. 117 was allocated for us.
* Character device major number. 117 was allocated for us.
* The value of 0 means to allocate a first free one. * The value of 0 means to allocate a first free one.
*/ */
static DEFINE_MUTEX(cosa_chardev_mutex); static DEFINE_MUTEX(cosa_chardev_mutex);
static int cosa_major = 117; static int cosa_major = 117;
/* /* Encoding of the minor numbers:
* Encoding of the minor numbers:
* The lowest CARD_MINOR_BITS bits means the channel on the single card, * The lowest CARD_MINOR_BITS bits means the channel on the single card,
* the highest bits means the card number. * the highest bits means the card number.
*/ */
#define CARD_MINOR_BITS 4 /* How many bits in minor number are reserved #define CARD_MINOR_BITS 4 /* How many bits in minor number are reserved
* for the single card */ * for the single card
/* */
* The following depends on CARD_MINOR_BITS. Unfortunately, the "MODULE_STRING" /* The following depends on CARD_MINOR_BITS. Unfortunately, the "MODULE_STRING"
* macro doesn't like anything other than the raw number as an argument :-( * macro doesn't like anything other than the raw number as an argument :-(
*/ */
#define MAX_CARDS 16 #define MAX_CARDS 16
@ -184,8 +179,7 @@ static int cosa_major = 117;
#define DRIVER_TXMAP_SHIFT 2 #define DRIVER_TXMAP_SHIFT 2
#define DRIVER_TXMAP_MASK 0x0c /* FIXME: 0xfc for 8-channel version */ #define DRIVER_TXMAP_MASK 0x0c /* FIXME: 0xfc for 8-channel version */
/* /* for cosa->rxtx - indicates whether either transmit or receive is
* for cosa->rxtx - indicates whether either transmit or receive is
* in progress. These values are mean number of the bit. * in progress. These values are mean number of the bit.
*/ */
#define TXBIT 0 #define TXBIT 0
@ -439,7 +433,8 @@ static int cosa_probe(int base, int irq, int dma)
return -1; return -1;
} }
/* I/O address should be between 0x100 and 0x3ff and should be /* I/O address should be between 0x100 and 0x3ff and should be
* multiple of 8. */ * multiple of 8.
*/
if (base < 0x100 || base > 0x3ff || base & 0x7) { if (base < 0x100 || base > 0x3ff || base & 0x7) {
pr_info("invalid I/O address 0x%x\n", base); pr_info("invalid I/O address 0x%x\n", base);
return -1; return -1;
@ -450,7 +445,8 @@ static int cosa_probe(int base, int irq, int dma)
return -1; return -1;
} }
/* and finally, on 16-bit COSA DMA should be 4-7 and /* and finally, on 16-bit COSA DMA should be 4-7 and
* I/O base should not be multiple of 0x10 */ * I/O base should not be multiple of 0x10
*/
if (((base & 0x8) && dma < 4) || (!(base & 0x8) && dma > 3)) { if (((base & 0x8) && dma < 4) || (!(base & 0x8) && dma > 3)) {
pr_info("8/16 bit base and DMA mismatch (base=0x%x, dma=%d)\n", pr_info("8/16 bit base and DMA mismatch (base=0x%x, dma=%d)\n",
base, dma); base, dma);
@ -496,8 +492,7 @@ static int cosa_probe(int base, int irq, int dma)
unsigned long irqs; unsigned long irqs;
/* pr_info("IRQ autoprobe\n"); */ /* pr_info("IRQ autoprobe\n"); */
irqs = probe_irq_on(); irqs = probe_irq_on();
/* /* Enable interrupt on tx buffer empty (it sure is)
* Enable interrupt on tx buffer empty (it sure is)
* really sure ? * really sure ?
* FIXME: When this code is not used as module, we should * FIXME: When this code is not used as module, we should
* probably call udelay() instead of the interruptible sleep. * probably call udelay() instead of the interruptible sleep.
@ -715,8 +710,7 @@ static int cosa_net_close(struct net_device *dev)
static char *cosa_net_setup_rx(struct channel_data *chan, int size) static char *cosa_net_setup_rx(struct channel_data *chan, int size)
{ {
/* /* We can safely fall back to non-dma-able memory, because we have
* We can safely fall back to non-dma-able memory, because we have
* the cosa->bouncebuf pre-allocated. * the cosa->bouncebuf pre-allocated.
*/ */
kfree_skb(chan->rx_skb); kfree_skb(chan->rx_skb);
@ -990,8 +984,7 @@ static int cosa_fasync(struct inode *inode, struct file *file, int on)
/* ---------- Ioctls ---------- */ /* ---------- Ioctls ---------- */
/* /* Ioctl subroutines can safely be made inline, because they are called
* Ioctl subroutines can safely be made inline, because they are called
* only from cosa_ioctl(). * only from cosa_ioctl().
*/ */
static inline int cosa_reset(struct cosa_data *cosa) static inline int cosa_reset(struct cosa_data *cosa)
@ -1203,8 +1196,7 @@ static long cosa_chardev_ioctl(struct file *file, unsigned int cmd,
/*---------- HW layer interface ---------- */ /*---------- HW layer interface ---------- */
/* /* The higher layer can bind itself to the HW layer by setting the callbacks
* The higher layer can bind itself to the HW layer by setting the callbacks
* in the channel_data structure and by using these routines. * in the channel_data structure and by using these routines.
*/ */
static void cosa_enable_rx(struct channel_data *chan) static void cosa_enable_rx(struct channel_data *chan)
@ -1223,8 +1215,7 @@ static void cosa_disable_rx(struct channel_data *chan)
put_driver_status(cosa); put_driver_status(cosa);
} }
/* /* FIXME: This routine probably should check for cosa_start_tx() called when
* FIXME: This routine probably should check for cosa_start_tx() called when
* the previous transmit is still unfinished. In this case the non-zero * the previous transmit is still unfinished. In this case the non-zero
* return value should indicate to the caller that the queuing(sp?) up * return value should indicate to the caller that the queuing(sp?) up
* the transmit has failed. * the transmit has failed.
@ -1319,8 +1310,7 @@ static void put_driver_status_nolock(struct cosa_data *cosa)
#endif #endif
} }
/* /* The "kickme" function: When the DMA times out, this is called to
* The "kickme" function: When the DMA times out, this is called to
* clean up the driver status. * clean up the driver status.
* FIXME: Preliminary support, the interface is probably wrong. * FIXME: Preliminary support, the interface is probably wrong.
*/ */
@ -1355,8 +1345,7 @@ static void cosa_kick(struct cosa_data *cosa)
spin_unlock_irqrestore(&cosa->lock, flags); spin_unlock_irqrestore(&cosa->lock, flags);
} }
/* /* Check if the whole buffer is DMA-able. It means it is below the 16M of
* Check if the whole buffer is DMA-able. It means it is below the 16M of
* physical memory and doesn't span the 64k boundary. For now it seems * physical memory and doesn't span the 64k boundary. For now it seems
* SKB's never do this, but we'll check this anyway. * SKB's never do this, but we'll check this anyway.
*/ */
@ -1378,8 +1367,7 @@ static int cosa_dma_able(struct channel_data *chan, char *buf, int len)
/* ---------- The SRP/COSA ROM monitor functions ---------- */ /* ---------- The SRP/COSA ROM monitor functions ---------- */
/* /* Downloading SRP microcode: say "w" to SRP monitor, it answers by "w=",
* Downloading SRP microcode: say "w" to SRP monitor, it answers by "w=",
* drivers need to say 4-digit hex number meaning start address of the microcode * drivers need to say 4-digit hex number meaning start address of the microcode
* separated by a single space. Monitor replies by saying " =". Now driver * separated by a single space. Monitor replies by saying " =". Now driver
* has to write 4-digit hex number meaning the last byte address ended * has to write 4-digit hex number meaning the last byte address ended
@ -1425,8 +1413,7 @@ static int download(struct cosa_data *cosa, const char __user *microcode, int le
return 0; return 0;
} }
/* /* Starting microcode is done via the "g" command of the SRP monitor.
* Starting microcode is done via the "g" command of the SRP monitor.
* The chat should be the following: "g" "g=" "<addr><CR>" * The chat should be the following: "g" "g=" "<addr><CR>"
* "<CR><CR><LF><CR><LF>". * "<CR><CR><LF><CR><LF>".
*/ */
@ -1450,8 +1437,7 @@ static int startmicrocode(struct cosa_data *cosa, int address)
return 0; return 0;
} }
/* /* Reading memory is done via the "r" command of the SRP monitor.
* Reading memory is done via the "r" command of the SRP monitor.
* The chat is the following "r" "r=" "<addr> " " =" "<last_byte> " " " * The chat is the following "r" "r=" "<addr> " " =" "<last_byte> " " "
* Then driver can read the data and the conversation is finished * Then driver can read the data and the conversation is finished
* by SRP monitor sending "<CR><LF>." (dot at the end). * by SRP monitor sending "<CR><LF>." (dot at the end).
@ -1502,8 +1488,7 @@ static int readmem(struct cosa_data *cosa, char __user *microcode, int length, i
return 0; return 0;
} }
/* /* This function resets the device and reads the initial prompt
* This function resets the device and reads the initial prompt
* of the device's ROM monitor. * of the device's ROM monitor.
*/ */
static int cosa_reset_and_read_id(struct cosa_data *cosa, char *idstring) static int cosa_reset_and_read_id(struct cosa_data *cosa, char *idstring)
@ -1518,8 +1503,7 @@ static int cosa_reset_and_read_id(struct cosa_data *cosa, char *idstring)
/* Disable all IRQs from the card */ /* Disable all IRQs from the card */
cosa_putstatus(cosa, 0); cosa_putstatus(cosa, 0);
/* /* Try to read the ID string. The card then prints out the
* Try to read the ID string. The card then prints out the
* identification string ended by the "\n\x2e". * identification string ended by the "\n\x2e".
* *
* The following loop is indexed through i (instead of id) * The following loop is indexed through i (instead of id)
@ -1544,8 +1528,7 @@ static int cosa_reset_and_read_id(struct cosa_data *cosa, char *idstring)
/* ---------- Auxiliary routines for COSA/SRP monitor ---------- */ /* ---------- Auxiliary routines for COSA/SRP monitor ---------- */
/* /* This routine gets the data byte from the card waiting for the SR_RX_RDY
* This routine gets the data byte from the card waiting for the SR_RX_RDY
* bit to be set in a loop. It should be used in the exceptional cases * bit to be set in a loop. It should be used in the exceptional cases
* only (for example when resetting the card or downloading the firmware. * only (for example when resetting the card or downloading the firmware.
*/ */
@ -1573,8 +1556,7 @@ static int get_wait_data(struct cosa_data *cosa)
return -1; return -1;
} }
/* /* This routine puts the data byte to the card waiting for the SR_TX_RDY
* This routine puts the data byte to the card waiting for the SR_TX_RDY
* bit to be set in a loop. It should be used in the exceptional cases * bit to be set in a loop. It should be used in the exceptional cases
* only (for example when resetting the card or downloading the firmware). * only (for example when resetting the card or downloading the firmware).
*/ */
@ -1601,8 +1583,7 @@ static int put_wait_data(struct cosa_data *cosa, int data)
return -1; return -1;
} }
/* /* The following routine puts the hexadecimal number into the SRP monitor
* The following routine puts the hexadecimal number into the SRP monitor
* and verifies the proper echo of the sent bytes. Returns 0 on success, * and verifies the proper echo of the sent bytes. Returns 0 on success,
* negative number on failure (-1,-3,-5,-7) means that put_wait_data() failed, * negative number on failure (-1,-3,-5,-7) means that put_wait_data() failed,
* (-2,-4,-6,-8) means that reading echo failed. * (-2,-4,-6,-8) means that reading echo failed.
@ -1631,8 +1612,7 @@ static int puthexnumber(struct cosa_data *cosa, int number)
/* ---------- Interrupt routines ---------- */ /* ---------- Interrupt routines ---------- */
/* /* There are three types of interrupt:
* There are three types of interrupt:
* At the beginning of transmit - this handled is in tx_interrupt(), * At the beginning of transmit - this handled is in tx_interrupt(),
* at the beginning of receive - it is in rx_interrupt() and * at the beginning of receive - it is in rx_interrupt() and
* at the end of transmit/receive - it is the eot_interrupt() function. * at the end of transmit/receive - it is the eot_interrupt() function.
@ -1646,8 +1626,7 @@ static int puthexnumber(struct cosa_data *cosa, int number)
* It's time to use the bottom half :-( * It's time to use the bottom half :-(
*/ */
/* /* Transmit interrupt routine - called when COSA is willing to obtain
* Transmit interrupt routine - called when COSA is willing to obtain
* data from the OS. The most tricky part of the routine is selection * data from the OS. The most tricky part of the routine is selection
* of channel we (OS) want to send packet for. For SRP we should probably * of channel we (OS) want to send packet for. For SRP we should probably
* use the round-robin approach. The newer COSA firmwares have a simple * use the round-robin approach. The newer COSA firmwares have a simple
@ -1924,8 +1903,7 @@ static inline void eot_interrupt(struct cosa_data *cosa, int status)
} else { } else {
pr_notice("cosa%d: unexpected EOT interrupt\n", cosa->num); pr_notice("cosa%d: unexpected EOT interrupt\n", cosa->num);
} }
/* /* Clear the RXBIT, TXBIT and IRQBIT (the latest should be
* Clear the RXBIT, TXBIT and IRQBIT (the latest should be
* cleared anyway). We should do it as soon as possible * cleared anyway). We should do it as soon as possible
* so that we can tell the COSA we are done and to give it a time * so that we can tell the COSA we are done and to give it a time
* for recovery. * for recovery.
@ -1979,8 +1957,7 @@ again:
} }
/* ---------- I/O debugging routines ---------- */ /* ---------- I/O debugging routines ---------- */
/* /* These routines can be used to monitor COSA/SRP I/O and to printk()
* These routines can be used to monitor COSA/SRP I/O and to printk()
* the data being transferred on the data and status I/O port in a * the data being transferred on the data and status I/O port in a
* readable way. * readable way.
*/ */