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| author | Allan Stephens <allan.stephens@windriver.com> | 2011-10-07 11:31:49 -0400 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2011-12-27 11:13:06 -0500 |
| commit | c61b666e260d5cc2e0203b21c689321e6ab0d676 (patch) | |
| tree | 3099d9f46c035b36c7555e75221df44f79f477a3 /net | |
| parent | 6c349210101352103d9055636845155bc801ae9b (diff) | |
| download | linux-stable-c61b666e260d5cc2e0203b21c689321e6ab0d676.tar.gz linux-stable-c61b666e260d5cc2e0203b21c689321e6ab0d676.tar.bz2 linux-stable-c61b666e260d5cc2e0203b21c689321e6ab0d676.zip | |
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: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/tipc/bearer.c | 12 | ||||
| -rw-r--r-- | net/tipc/bearer.h | 3 | ||||
| -rw-r--r-- | net/tipc/eth_media.c | 12 |
3 files changed, 12 insertions, 15 deletions
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index f908b804a968..17652f20a359 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -136,20 +136,18 @@ exit: 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++) diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h index 148ed04493ac..4e9367f956a4 100644 --- a/net/tipc/bearer.h +++ b/net/tipc/bearer.h @@ -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; diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c index 15c685b868db..67f616aa5dbb 100644 --- a/net/tipc/eth_media.c +++ b/net/tipc/eth_media.c @@ -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 - sprintf(str_buf, "%pM", addr); - return str_buf; + if (str_size < 18) /* 18 = strlen("aa:bb:cc:dd:ee:ff\0") */ + return 1; + + sprintf(str_buf, "%pM", addr); + return 0; } /* |