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authorBen Dooks <ben-linux@fluff.org>2008-02-05 00:02:18 +0000
committerJeff Garzik <jeff@garzik.org>2008-02-11 11:06:34 -0500
commitd39cb7866e5f6ff32ed4d99cc3fcd19bda701492 (patch)
treec225f7d4f5133b3237f68088aed4ab4c262ad84b
parent39c341a8dcf060b246b0beddac90cd7de11d4a20 (diff)
downloadop-kernel-dev-d39cb7866e5f6ff32ed4d99cc3fcd19bda701492.zip
op-kernel-dev-d39cb7866e5f6ff32ed4d99cc3fcd19bda701492.tar.gz
DM9000: Remove cal_CRC() and use ether_crc_le instead
Remove the cal_CRC as this is basically wrappering the ether_crc_le function, and is only being used by the multicast hash table functions. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--drivers/net/dm9000.c35
1 files changed, 9 insertions, 26 deletions
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index 1d790a8..2259605 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -1155,24 +1155,6 @@ dm9000_write_eeprom(board_info_t *db, int offset, u8 *data)
}
/*
- * Calculate the CRC valude of the Rx packet
- * flag = 1 : return the reverse CRC (for the received packet CRC)
- * 0 : return the normal CRC (for Hash Table index)
- */
-
-static unsigned long
-cal_CRC(unsigned char *Data, unsigned int Len, u8 flag)
-{
-
- u32 crc = ether_crc_le(Len, Data);
-
- if (flag)
- return ~crc;
-
- return crc;
-}
-
-/*
* Set DM9000 multicast address
*/
static void
@@ -1181,15 +1163,16 @@ dm9000_hash_table(struct net_device *dev)
board_info_t *db = (board_info_t *) dev->priv;
struct dev_mc_list *mcptr = dev->mc_list;
int mc_cnt = dev->mc_count;
+ int i, oft;
u32 hash_val;
- u16 i, oft, hash_table[4];
+ u16 hash_table[4];
unsigned long flags;
dm9000_dbg(db, 1, "entering %s\n", __func__);
- spin_lock_irqsave(&db->lock,flags);
+ spin_lock_irqsave(&db->lock, flags);
- for (i = 0, oft = 0x10; i < 6; i++, oft++)
+ for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++)
iow(db, oft, dev->dev_addr[i]);
/* Clear Hash Table */
@@ -1201,17 +1184,17 @@ dm9000_hash_table(struct net_device *dev)
/* the multicast address in Hash Table : 64 bits */
for (i = 0; i < mc_cnt; i++, mcptr = mcptr->next) {
- hash_val = cal_CRC((char *) mcptr->dmi_addr, 6, 0) & 0x3f;
+ hash_val = ether_crc_le(6, mcptr->dmi_addr) & 0x3f;
hash_table[hash_val / 16] |= (u16) 1 << (hash_val % 16);
}
/* Write the hash table to MAC MD table */
- for (i = 0, oft = 0x16; i < 4; i++) {
- iow(db, oft++, hash_table[i] & 0xff);
- iow(db, oft++, (hash_table[i] >> 8) & 0xff);
+ for (i = 0, oft = DM9000_MAR; i < 4; i++) {
+ iow(db, oft++, hash_table[i]);
+ iow(db, oft++, hash_table[i] >> 8);
}
- spin_unlock_irqrestore(&db->lock,flags);
+ spin_unlock_irqrestore(&db->lock, flags);
}
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