• R
    IB/mthca: Use uninitialized_var() for f0 · 6d7d080e
    Roland Dreier 提交于
    Commit 9db48926 ("drivers/infiniband/hw/mthca/mthca_qp: kill uninit'd
    var warning") added "= 0" to the declarations of f0 to shut up gcc
    warnings.  However, there's no point in making the code bigger by
    initializing f0 to a random value just to get rid of a warning;
    setting f0 to 0 is no safer than just using uninitialized_var(), which
    documents the situation better and gives smaller code too.  For example, 
    on x86_64:
    
    add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-16 (-16)
    function                                     old     new   delta
    mthca_tavor_post_send                       1352    1344      -8
    mthca_arbel_post_send                       1489    1481      -8
    Signed-off-by: NRoland Dreier <rolandd@cisco.com>
    6d7d080e
mthca_qp.c 63.7 KB