• Michał Mirosław's avatar
    net: convert SMSC USB net drivers to hw_features · 78e47fe4
    Michał Mirosław authored
    There's a race (not fixed here) in smsc75xx in setting RFE_CTL that's not
    properly handled via rfe_ctl_lock. Spinlock is not a good tool here, as
    this has to wait for URB completion (or maybe just submission) after issuing
    register write request. Otherwise, the rfe_ctl might be changed just after
    spin_unlock() and device left programmed with other value.
    
    smsc95xx has increased hard_header_len for the case of TX checksumming.
    
    smsc75xx is fixed to advertise IP+IPV6_CSUM instead of HW_CSUM as it does
    not use csum_start/csum_offset.
    Signed-off-by: default avatarMichał Mirosław <mirq-linux@rere.qmqm.pl>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    78e47fe4
smsc95xx.c 32.7 KB