With gcc-5.x we get a warning about the ambiguity of BUG_ON(!a != b) and
becomes BUG_ON((!a) != b).  In this case reading of the function leads to
us wanting to rewrite this as BUG_ON(a != b).
Cc: Prabhakar Kushwaha <prabhakar@freescale.com>
Cc: Geoff Thorpe <Geoff.Thorpe@freescale.com>
Cc: Haiying Wang <Haiying.Wang@freescale.com>
Cc: Roy Pledge <Roy.Pledge@freescale.com>
Cc: York Sun <yorksun@freescale.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: York Sun <yorksun@freescale.com>
 {
        uint32_t *v = cmd;
 #ifdef QBMAN_CHECKING
-       BUG_ON(!p->mc.check != swp_mc_can_submit);
+       BUG_ON(p->mc.check != swp_mc_can_submit);
 #endif
        lwsync();
        /* TBD: "|=" is going to hurt performance. Need to move as many fields