They possibly silence meaningful warnings ...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 #define UNIT(unit)  ((unit)*NBYTES)
 
 #define ADDC(sum,reg)                                          \
-       .set    push;                                           \
-       .set    noat;                                           \
        ADD     sum, reg;                                       \
        sltu    v1, sum, reg;                                   \
        ADD     sum, v1;                                        \
-       .set    pop
 
 #define ADDC32(sum,reg)                                                \
-       .set    push;                                           \
-       .set    noat;                                           \
        addu    sum, reg;                                       \
        sltu    v1, sum, reg;                                   \
        addu    sum, v1;                                        \
-       .set    pop
 
 #define CSUM_BIGCHUNK1(src, offset, sum, _t0, _t1, _t2, _t3)   \
        LOAD    _t0, (offset + UNIT(0))(src);                   \
 1:     ADDC(sum, t1)
 
        /* fold checksum */
-       .set    push
-       .set    noat
 #ifdef USE_DOUBLE
        dsll32  v1, sum, 0
        daddu   sum, v1
        srl     sum, sum, 8
        or      sum, v1
        andi    sum, 0xffff
-       .set    pop
 1:
        .set    reorder
        /* Add the passed partial csum.  */
        ADDC(sum, t2)
 .Ldone:
        /* fold checksum */
-       .set    push
-       .set    noat
 #ifdef USE_DOUBLE
        dsll32  v1, sum, 0
        daddu   sum, v1
        srl     sum, sum, 8
        or      sum, v1
        andi    sum, 0xffff
-       .set    pop
 1:
        .set reorder
        ADDC32(sum, psum)