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Commit c61b666e authored by Allan Stephens's avatar Allan Stephens Committed by Paul Gortmaker
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tipc: Improve handling of media address printing errors 



Enhances conversion of a media address to printable form so that an
unconvertable address will be displayed as a string of hex digits,
rather than not being displayed at all. (Also removes a pointless check
for the existence of the media-specific address conversion routine,
since the routine is not optional.)

Signed-off-by: default avatarAllan Stephens <allan.stephens@windriver.com>
Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
parent 6c349210

net/tipc/bearer.c

+5 −7
Original line number Diff line number Diff line
@@ -136,20 +136,18 @@ int tipc_register_media(struct media *m_ptr) 


void tipc_media_addr_printf(struct print_buf *pb, struct tipc_media_addr *a)

{

	char addr_str[MAX_ADDR_STR];

	struct media *m_ptr;

	u32 media_type;

	u32 i;



	media_type = ntohl(a->type);

	m_ptr = media_find_id(media_type);



	if (m_ptr && (m_ptr->addr2str != NULL)) {

		char addr_str[MAX_ADDR_STR];



		tipc_printf(pb, "%s(%s)", m_ptr->name,

			    m_ptr->addr2str(a, addr_str, sizeof(addr_str)));

	} else {

	if (m_ptr && !m_ptr->addr2str(a, addr_str, sizeof(addr_str)))

		tipc_printf(pb, "%s(%s)", m_ptr->name, addr_str);

	else {

		unchar *addr = (unchar *)&a->dev_addr;

		u32 i;



		tipc_printf(pb, "UNKNOWN(%u)", media_type);

		for (i = 0; i < (sizeof(*a) - sizeof(a->type)); i++)

net/tipc/bearer.h

+1 −2
Original line number Diff line number Diff line
@@ -83,8 +83,7 @@ struct media { 
			struct tipc_media_addr *dest);

	int (*enable_bearer)(struct tipc_bearer *b_ptr);

	void (*disable_bearer)(struct tipc_bearer *b_ptr);

	char *(*addr2str)(struct tipc_media_addr *a,

			  char *str_buf, int str_size);

	int (*addr2str)(struct tipc_media_addr *a, char *str_buf, int str_size);

	struct tipc_media_addr bcast_addr;

	u32 priority;

	u32 tolerance;

net/tipc/eth_media.c

+6 −6
Original line number Diff line number Diff line
@@ -243,15 +243,15 @@ static int recv_notification(struct notifier_block *nb, unsigned long evt, 
 * eth_addr2str - convert Ethernet address to string

 */



static char *eth_addr2str(struct tipc_media_addr *a, char *str_buf, int str_size)

static int eth_addr2str(struct tipc_media_addr *a, char *str_buf, int str_size)

{

	unchar *addr = (unchar *)&a->dev_addr;



	if (str_size < 18)

		*str_buf = '\0';

	else

	if (str_size < 18)	/* 18 = strlen("aa:bb:cc:dd:ee:ff\0") */

		return 1;



	sprintf(str_buf, "%pM", addr);

	return str_buf;

	return 0;

}



/*