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    Subjectinteger overflow in i2o_block
    Got this warning on 32-bit ppc, seems real? And it seems I2O 
    subsystem has no maintainer (only DPT_I2O has one)?

    CC [M] drivers/message/i2o/i2o_block.o
    drivers/message/i2o/i2o_block.c: In function 'i2o_block_transfer':
    drivers/message/i2o/i2o_block.c:837: warning: integer overflow in expression

    The line in question is
    msg->u.head[1] = cpu_to_le32(I2O_CMD_PRIVATE << 24 | HOST_TID << 12 | tid);
    and I2O_CMD_PRIVATE is defined as 0xFF. This gets "0xFF0100 | tid" and
    fits into 32-bit unsigned but not into 32-bit signed integer properly.
    Target value head[*] is defined as u32 so the claculation does not fit
    during computation? Should we mark the shiftable inputas as unsigned?

    Meelis Roos (
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      Last update: 2007-07-26 22:33    [W:0.020 / U:6.748 seconds]
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