net: move compute_mcast_idx() to net.h

[qemu.git] / hw / eepro100.c

diff --git a/hw/eepro100.c b/hw/eepro100.c
index e3ba71974ed6fbbf9116593cc592e10b10b26ecb..02e6f7ef31efef3c2dfe456d6d8398a4af20585d 100644 (file)
--- a/hw/eepro100.c
+++ b/hw/eepro100.c
@@ -322,33 +322,8 @@ static const uint16_t eepro100_mdi_mask[] = {
     0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
 };
 
-#define POLYNOMIAL 0x04c11db6
-
 static E100PCIDeviceInfo *eepro100_get_class(EEPRO100State *s);
 
-/* From FreeBSD */
-/* XXX: optimize */
-static unsigned compute_mcast_idx(const uint8_t * ep)
-{
-    uint32_t crc;
-    int carry, i, j;
-    uint8_t b;
-
-    crc = 0xffffffff;
-    for (i = 0; i < 6; i++) {
-        b = *ep++;
-        for (j = 0; j < 8; j++) {
-            carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01);
-            crc <<= 1;
-            b >>= 1;
-            if (carry) {
-                crc = ((crc ^ POLYNOMIAL) | carry);
-            }
-        }
-    }
-    return (crc & BITS(7, 2)) >> 2;
-}
-
 /* Read a 16 bit control/status (CSR) register. */
 static uint16_t e100_read_reg2(EEPRO100State *s, E100RegisterOffset addr)
 {