• Heiko Carstens's avatar
    s390/bitops: rename find_first_bit_left() to find_first_bit_inv() · 7d7c7b24
    Heiko Carstens authored
    find_first_bit_left() and friends have nothing to do with the normal
    LSB0 bit numbering for big endian machines used in Linux (least
    significant bit has bit number 0).
    Instead they use MSB0 bit numbering, where the most signficant bit has
    bit number 0. So rename find_first_bit_left() and friends to
    find_first_bit_inv(), to avoid any confusion.
    Also provide inv versions of set_bit, clear_bit and test_bit.
    
    This also removes the confusing use of e.g. set_bit() in airq.c which
    uses a "be_to_le" bit number conversion, which could imply that instead
    set_bit_le() could be used. But that is entirely wrong since the _le
    bitops variant uses yet another bit numbering scheme.
    Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
    Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
    7d7c7b24
airq.c 6.19 KB