net: move CRC32 calculation from compute_mcast_idx() into its own net_crc32() function
Separate out the standard ethernet CRC32 calculation into a new net_crc32() function, renaming the constant POLYNOMIAL to POLYNOMIAL_BE to make it clear that this is a big-endian CRC32 calculation. As part of the constant rename, remove the duplicate definition of POLYNOMIAL from eepro100.c and use the new POLYNOMIAL_BE constant instead. Once this is complete remove the existing CRC32 implementation from compute_mcast_idx() and call the new net_crc32() function in its place. Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: NJason Wang <jasowang@redhat.com>
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