port-arc/50855: src/sys/arch/arc/isa/isadma_bounce.c: 2 * redundant conditions

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>Number:         50855
>Category:       port-arc
>Synopsis:       src/sys/arch/arc/isa/isadma_bounce.c: 2 * redundant conditions
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    port-arc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Feb 26 17:25:00 +0000 2016
>Originator:     David Binderman
>Release:        cvs dated 20160226
>Organization:
>Environment:
>Description:
1.

[src/sys/arch/arc/isa/isadma_bounce.c:254]: (style) Redundant condition: error!=0. 'error==0 || (error!=0 && (cookie.id_flags&1)==0)' is equivalent to 'error==0 || (cookie.id_flags&1)==0'

Source code is

    if (error == 0 ||
        (error != 0 && (cookie->id_flags & ID_MIGHT_NEED_BOUNCE) == 0))

2.

[src/sys/arch/arc/isa/isadma_bounce.c:324]: (style) Redundant condition: error!=0. 'error==0 || (error!=0 && (cookie.id_flags&1)==0)' is equivalent to 'error==0 || (cookie.id_flags&1)==0'

Source code is

    if (error == 0 ||
        (error != 0 && (cookie->id_flags & ID_MIGHT_NEED_BOUNCE) == 0))

>How-To-Repeat:

>Fix: